uas_alloc_data_urb always gets called with a stream_id value of 0 when not
using streams. Removing the check makes it consistent with uas_alloc_sense_urb.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
For USB-2 connections the stream-id must always be 0.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Some BIOS-es will hang on reboot when an uas device is attached and left in
uas mode on reboot.
This commit adds a shutdown handler which on reboot puts the device back into
usb-storage mode, fixing the hang on reboot on these systems.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
We can sleep in our own workqueue (which is the whole reason for having
it), and scsi error handlers are also always called from a context which
may sleep.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Since we use a fixed tag / stream for tasks we cannot allow more then one
to run at the same time. This could happen before this time if a task timed
out.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
The fixed endpoint config code was only necessary to deal with an early
uas prototype which has never been released, so lets drop it and enforce
proper uas endpoint descriptors.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
The loop uses up to 3 bytes of the endpoint extra data.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
This is a preparation patch for adding better descriptor validation.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Falling back from uas to usb-storage requires coordination between uas and
usb-storage, so use usb-storage's quirks module parameter, rather then
requiring the user to pass a param to 2 different modules.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
uas devices have 2 alternative settings on their usb-storage interface,
one for usb-storage and one for uas. Using the uas driver is preferred, so if
the uas driver is enabled, and the device has an uas alt setting, don't bind.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Once we start supporting uas hardware, and as more and more uas devices
become available, we will likely start seeing broken devices. This patch
prepares for the inevitable need for blacklisting those devices from
using the uas driver (they will use usb-storage instead).
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
This is a preparation patch for teaching usb-storage to not bind to
uas devices.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
This is a preparation patch for teaching usb-storage to not bind to
uas devices.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
If we get ie 16 streams we can use stream-id 1-16, not 1-15.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Handle usb-device resets not triggered from uas_eh_bus_reset_handler(), when
this happens, disable cmd queuing during the reset, and wait for existing
requests to finish in pre_reset.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Fix the uas_eh_bus_reset_handler not properly taking the usbdev lock
before calling usb_device_reset, the usb-core expects this lock to be
taken when usb_device_reset is called.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
I thought it would be a good idea to also test uas with usb-2, and it turns out
it was, as it did not work. The problem is that the uas driver was passing the
bEndpointAddress' direction bit to usb_rcvbulkpipe, the xhci code seems to not
care about this, but with the ehci code this causes usb_submit_urb failure.
With this fixed the uas code works nicely with an uas device plugged into
an ehci port.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
The cmd endpoint never has streams, so the stream_id parameter is unused.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
All callers of unlink_data_urbs drop devinfo->lock before calling it, and
then immediately take it again after the call. And the first thing
unlink_data_urbs does is take the lock again, and the last thing it does
is drop it. This commit removes all the unnecessary lock dropping and taking.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
- Rename labels to properly reflect this
- Don't skip free-ing the streams when scsi_init_shared_tag_map fails
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Otherwise they may complete before they get anchored and thus never get
unanchored (as the unanchoring is done by the usb core on completion).
This commit also remove the usb_get_urb / usb_put_urb around cmd submission +
anchoring, since if done in the proper order this is not necessary.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
This patch adds a new list where all requests which are canceled are
added to, so we don't loose them. Then, after killing all inflight
urbs on bus reset (and disconnect) we'll walk over the list and clean
them up.
Without this we can end up with aborted requests lingering around in
case of status pipe transfer errors.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Simplifies locking, we'll protect the list with the device spin lock.
Also plugs races which can happen when two devices operate on the
global list.
While being at it rename the list head from "list" to "work", preparing
for the addition of a second list.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
People sometimes create their own custom-configured kernels and forget
to enable CONFIG_SCSI_MULTI_LUN. This causes problems when they plug
in a USB storage device (such as a card reader) with more than one
LUN.
Fortunately, we can tell fairly easily when a storage device claims to
have more than one LUN. When that happens, this patch asks the SCSI
layer to probe all the LUNs automatically, regardless of the config
setting.
The patch also updates the Kconfig help text for usb-storage,
explaining that CONFIG_SCSI_MULTI_LUN may be necessary.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Reported-by: Thomas Raschbacher <lordvan@lordvan.com>
CC: Matthew Dharm <mdharm-usb@one-eyed-alien.net>
CC: James Bottomley <James.Bottomley@HansenPartnership.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch adds an unusual-devs entry for the BlackBerry 9000. This
fixes Bugzilla #22442.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Reported-by: Moritz Moeller-Herrmann <moritz-kernel@moeller-herrmann.de>
Tested-by: Moritz Moeller-Herrmann <moritz-kernel@moeller-herrmann.de>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The Cypress ATACB unusual-devs entry for the Super Top SATA bridge
causes problems. Although it was originally reported only for
bcdDevice = 0x160, its range was much larger. This resulted in a bug
report for bcdDevice 0x220, so the range was capped at 0x219. Now
Milan reports errors with bcdDevice 0x150.
Therefore this patch restricts the range to just 0x160.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Reported-and-tested-by: Milan Svoboda <milan.svoboda@centrum.cz>
CC: <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
None of these files are actually using any __init type directives
and hence don't need to include <linux/init.h>. Most are just a
left over from __devinit and __cpuinit removal, or simply due to
code getting copied from one driver to the next.
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The USB storage operation of Nokia Asha 502 Dual SIM smartphone running Asha
Platform 1.1.1 is unreliable in respect of data consistency (i.e. transfered
files are corrupted). A similar issue is described here:
http://discussions.nokia.com/t5/Asha-and-other-Nokia-Series-30/Nokia-301-USB-transfers-and-corrupted-files/td-p/1974170
The workaround is (MAX_SECTORS_64):
rmmod usb_storage && modprobe usb_storage quirks=0421:06aa:m
The patch adds the tested device to the unusual list permanently.
Signed-off-by: Mikhail Zolotaryov <lebon@lebon.org.ua>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch should fix the below compile warning:
drivers/usb/storage/protocol.c: In function 'usb_stor_access_xfer_buf':
drivers/usb/storage/protocol.c:155:22: warning: comparison of distinct
pointer types lacks a cast [enabled by default]
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Ming Lei <ming.lei@canonical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
We have sg_miter_* APIs for accessing scsi sg buffer, so
use them to make code clean and bug free.
Cc: Matthew Dharm <mdharm-usb@one-eyed-alien.net>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ming Lei <ming.lei@canonical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Some USB drive enclosures do not correctly report an
overflow condition if they hold a drive with a capacity
over 2TB and are confronted with a READ_CAPACITY_10.
They answer with their capacity modulo 2TB.
The generic layer cannot cope with that. It must be told
to use READ_CAPACITY_16 from the beginning.
Signed-off-by: Oliver Neukum <oneukum@suse.de>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Convert the usbsorage sysfs attribute to use the _RW macro to make it
easier to determine the permissions for the file.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The device report an error capacity when read_capacity_16().
Using read_capacity_10() can get the correct capacity.
Signed-off-by: Ren Bigcren <bigcren.ren@sonymobile.com>
Cc: Matthew Dharm <mdharm-usb@one-eyed-alien.net>
Signed-off-by: Oskar Andero <oskar.andero@sonymobile.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Clean up the code a bit to initialize the variables directly when
defining them.
Signed-off-by: Emilio López <emilio@elopez.com.ar>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Clean up the code a bit to initialize the variables directly when
defining them.
Signed-off-by: Emilio López <emilio@elopez.com.ar>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To fix the compile error when CONFIG_PM_RUNTIME is not enabled,
move the declaration of us out of CONFIG_REALTEK_AUTOPM macro in rts51x_chip.
drivers/usb/storage/realtek_cr.c: In function 'realtek_cr_destructor':
drivers/usb/storage/realtek_cr.c:942:11: error: 'struct rts51x_chip' has no member named 'us'
Signed-off-by: Wei WANG <wei_wang@realsil.com.cn>
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Pull VFS updates from Al Viro,
Misc cleanups all over the place, mainly wrt /proc interfaces (switch
create_proc_entry to proc_create(), get rid of the deprecated
create_proc_read_entry() in favor of using proc_create_data() and
seq_file etc).
7kloc removed.
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (204 commits)
don't bother with deferred freeing of fdtables
proc: Move non-public stuff from linux/proc_fs.h to fs/proc/internal.h
proc: Make the PROC_I() and PDE() macros internal to procfs
proc: Supply a function to remove a proc entry by PDE
take cgroup_open() and cpuset_open() to fs/proc/base.c
ppc: Clean up scanlog
ppc: Clean up rtas_flash driver somewhat
hostap: proc: Use remove_proc_subtree()
drm: proc: Use remove_proc_subtree()
drm: proc: Use minor->index to label things, not PDE->name
drm: Constify drm_proc_list[]
zoran: Don't print proc_dir_entry data in debug
reiserfs: Don't access the proc_dir_entry in r_open(), r_start() r_show()
proc: Supply an accessor for getting the data from a PDE's parent
airo: Use remove_proc_subtree()
rtl8192u: Don't need to save device proc dir PDE
rtl8187se: Use a dir under /proc/net/r8180/
proc: Add proc_mkdir_data()
proc: Move some bits from linux/proc_fs.h to linux/{of.h,signal.h,tty.h}
proc: Move PDE_NET() to fs/proc/proc_net.c
...
Remove unused local `us', which broke the build. Also nuke an unneeded
cast.
Repairs commit 191648d03d ("usb: storage: Convert US_DEBUGP to
usb_stor_dbg").
Cc: Joe Perches <joe@perches.com>
Acked-by: David Rientjes <rientjes@google.com>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Many cards based on CY7C68300A/B/C use the USB ID 04b4:6830 but only the
B and C variants (EZ-USB AT2LP) support the ATA Command Block
functionality, according to the data sheets. The A variant (EZ-USB AT2)
locks up if ATACB is attempted, until a typical 30 seconds timeout runs
out and a USB reset is performed.
https://bugs.launchpad.net/bugs/428469
It seems that one way to spot a CY7C68300A (at least where the card
manufacturer left Cypress' EEPROM default vaules, against Cypress'
recommendations) is to look at the USB string descriptor indices.
A http://media.digikey.com/pdf/Data%20Sheets/Cypress%20PDFs/CY7C68300A.pdf
B http://www.farnell.com/datasheets/43456.pdf
C http://www.cypress.com/?rID=14189
Note that a CY7C68300B/C chip appears as CY7C68300A if it is running
in Backward Compatibility Mode, and if ATACB would be supported in this
case there is anyway no way to tell which chip it really is.
For 5 years my external USB drive has been locking up for half a minute
when plugged in and ata_id is run by udev, or anytime hdparm or similar
is run on it.
Finally looking at the /correct/ datasheet I think I found the reason. I
am aware the quirk in this patch is a bit hacky, but the hardware
manufacturers haven't made it easy for us.
Signed-off-by: Tormod Volden <debian.tormod@gmail.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Now that Joe cleaned up the init/exit functions, we can just get rid of
them entirely and use the proper macro that almost all other USB drivers
now use.
Cc: Matthew Dharm <mdharm-usb@one-eyed-alien.net>
Cc: Joe Perches <joe@perches.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use a more current logging style with dev_printk
where possible.
o Convert uses of US_DEBUGP to usb_stor_dbg
o Add "struct us_data *" to usb_stor_dbg uses
o usb_stor_dbg now uses struct device */dev_vprint_emit
o Removed embedded function names
o Coalesce formats
o Remove trailing whitespace
o Remove useless OOM messages
o Remove useless function entry/exit logging
o Convert some US_DEBUGP uses to dev_info and dev_dbg
Object size is slightly reduced when debugging
is enabled, slightly increased with no debugging
because some initialization and removal messages
are now always emitted.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reduce the size of the objects by consolidating
the duplicated USB_STORAGE into a single function.
Add function usb_stor_dbg to emit debugging messages.
Always validate the format and arguments.
Reduce the number of uses of CONFIG_USB_STORAGE_DEBUG.
Reduces size of objects ~7KB when CONFIG_USB_STORAGE_DEBUG
is set.
$ size drivers/usb/storage/built-in.o*
text data bss dec hex filename
140133 55296 70312 265741 40e0d drivers/usb/storage/built-in.o.new
147494 55248 70296 273038 42a8e drivers/usb/storage/built-in.o.old
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch removes the depends on USB from all config symbols in
drivers/usb/host/Kconfig and replace that with an if USB / endif block
as suggested by Alan Stern. Some source ... Kconfig lines have been
shuffled around to permit a better regroupment of the Kconfig files
depending on "config USB" item. No functionnal change is introduced.
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This is to pick up the fixes in that branch, and let Alan fix the merge
error in drivers/usb/host/ehci-timer.c better than I just did (as I know
I messed it up...)
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Smatch complains because we only allocate ONETOUCH_PKT_LEN (2) bytes
but later when we call usb_fill_int_urb() we assume maxp can be up
to 8 bytes. I talked to the maintainer and maxp should be capped at
ONETOUCH_PKT_LEN.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This reverts commit 200e0d99 ("USB: storage: optimize to match the
Huawei USB storage devices and support new switch command" and the
followup bugfix commit cd060956 ("USB: storage: properly handle
the endian issues of idProduct").
The commit effectively added a large number of Huawei devices to
the deprecated usb-storage mode switching logic. Many of these
devices have been in use and supported by the userspace
usb_modeswitch utility for years. Forcing the switching inside
the kernel causes a number of regressions as a result of ignoring
existing onfigurations, and also completely takes away the ability
to configure mode switching per device/system/user.
Known regressions caused by this:
- Some of the devices support multiple modes, using different
switching commands. There are existing configurations taking
advantage of this.
- There is a real use case for disabling mode switching and
instead mounting the exposed storage device. This becomes
impossible with switching logic inside the usb-storage driver.
- At least on device fail as a result of the usb-storage switching
command, becoming completely unswitchable. This is possibly a
firmware bug, but still a regression because the device work as
expected using usb_modeswitch defaults.
In-kernel mode switching was deprecated years ago with the
development of the more user friendly userspace alternatives. The
existing list of devices in usb-storage was only kept to prevent
breaking already working systems. The long term plan is to remove
the list, not to add to it. Ref:
http://permalink.gmane.org/gmane.linux.usb.general/28543
Cc: <fangxiaozhi@huawei.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The current entry in unusual_cypress.h for the Super TOP SATA bridge devices
seems to be causing corruption on newer revisions of this device. This has
been reported in Arch Linux and Fedora. The original patch was tested on
devices with bcdDevice of 1.60, whereas the newer devices report bcdDevice
as 2.20. Limit the UNUSUAL_DEV entry to devices less than 2.20.
This fixes https://bugzilla.redhat.com/show_bug.cgi?id=909591
The Arch Forum post on this is here:
https://bbs.archlinux.org/viewtopic.php?id=152011
Reported-by: Carsten S. <carsteniq@yahoo.com>
Tested-by: Carsten S. <carsteniq@yahoo.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Josh Boyer <jwboyer@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
1. The idProduct is little endian, so make sure its value to be
compatible with the current CPU. Make no break on big endian processors.
Signed-off-by: fangxiaozhi <huananhu@huawei.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This pulls in a bunch of fixes that are in Linus's tree because we need them
here for testing and development.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
1. Optimize the match rules with new macro for Huawei USB storage devices,
to avoid to load USB storage driver for the modem interface
with Huawei devices.
2. Add to support new switch command for new Huawei USB dongles.
Signed-off-by: fangxiaozhi <huananhu@huawei.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
1. Define a new macro for USB storage match rules:
matching with Vendor ID and interface descriptors.
Signed-off-by: fangxiaozhi <huananhu@huawei.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
256 luns is what the sam-4 address method 0 can handle and what
the qemu uas emulation supports. So pick that for now.
[ v2: unlike the other two max_* fields max_channel isn't max+1 ]
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch sets scsi_host->max_id as 1 if the device's quirk
flag of US_FL_SCM_MULT_TARG isn't set, because there are only 6
mass storage devices marked as mutiple targets from unusual_devs.h.
This patch is a small optimization about scanning targets, and
avoid scanning other 7 non-existed targets for single target
device.
Signed-off-by: Ming Lei <ming.lei@canonical.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Acked-by: Matthew Dharm <mdharm-usb@one-eyed-alien.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Add new function to unlink and abort requests from the work
list, call it on bus reset and disconnect where we kill all
in-flight urbs. Also reorder calls in disconnect to first
cancel transfers, then remove the scsi hba.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Two changes. First we check whenever the request is linked in the work
list and if so take it out. Second check whenever the command is
actually in flight before asking the device to cancel it via task
management, and in case it isn't just zap the data urbs and finish it.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Keep track whenever the request is linked into the work list or not.
Needed for request abort.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
uas_unlink_data_urbs uses this to make sure the the scsi command is
not released while looking at it. This will be needed when we start
calling uas_unlink_data_urbs in the request cancel code paths.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Add uas_unlink_data_urbs function to cancel in-flight data urbs.
Moves existing code into a separate function.
[ v2: also drop the locking, just call usb_unlink_urb no matter what,
which is safe because the usb core guarantees the completion
callback is called only once ]
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Pull trivial branch from Jiri Kosina:
"Usual stuff -- comment/printk typo fixes, documentation updates, dead
code elimination."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (39 commits)
HOWTO: fix double words typo
x86 mtrr: fix comment typo in mtrr_bp_init
propagate name change to comments in kernel source
doc: Update the name of profiling based on sysfs
treewide: Fix typos in various drivers
treewide: Fix typos in various Kconfig
wireless: mwifiex: Fix typo in wireless/mwifiex driver
messages: i2o: Fix typo in messages/i2o
scripts/kernel-doc: check that non-void fcts describe their return value
Kernel-doc: Convention: Use a "Return" section to describe return values
radeon: Fix typo and copy/paste error in comments
doc: Remove unnecessary declarations from Documentation/accounting/getdelays.c
various: Fix spelling of "asynchronous" in comments.
Fix misspellings of "whether" in comments.
eisa: Fix spelling of "asynchronous".
various: Fix spelling of "registered" in comments.
doc: fix quite a few typos within Documentation
target: iscsi: fix comment typos in target/iscsi drivers
treewide: fix typo of "suport" in various comments and Kconfig
treewide: fix typo of "suppport" in various comments
...
Here's the big set of USB patches for 3.8-rc1.
Lots of USB host driver cleanups in here, and a bit of a reorg of the
EHCI driver to make it easier for the different EHCI platform drivers to
all work together nicer, which was a reduction in overall code. We also
deleted some unused firmware files, and got rid of the very old
file_storage usb gadget driver that had been broken for a long time.
This means we ended up removing way more code than added, always a nice
thing to see:
310 files changed, 3028 insertions(+), 10754 deletions(-)
Other than that, the usual set of new device ids, driver fixes, gadget
driver and controller updates and the like.
All of these have been in the linux-next tree for a number of weeks.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.19 (GNU/Linux)
iEYEABECAAYFAlDHhIYACgkQMUfUDdst+yk9gACgsZYgMtbrqdbhbjbYkfO7nYkB
iegAoIvj3qwe33TbZ8OJnIkaWcMiT8CW
=u6Bf
-----END PGP SIGNATURE-----
Merge tag 'usb-3.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB patches from Greg Kroah-Hartman:
"Here's the big set of USB patches for 3.8-rc1.
Lots of USB host driver cleanups in here, and a bit of a reorg of the
EHCI driver to make it easier for the different EHCI platform drivers
to all work together nicer, which was a reduction in overall code. We
also deleted some unused firmware files, and got rid of the very old
file_storage usb gadget driver that had been broken for a long time.
This means we ended up removing way more code than added, always a
nice thing to see:
310 files changed, 3028 insertions(+), 10754 deletions(-)
Other than that, the usual set of new device ids, driver fixes, gadget
driver and controller updates and the like.
All of these have been in the linux-next tree for a number of weeks.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"
* tag 'usb-3.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (228 commits)
USB: mark uas driver as BROKEN
xhci: Add Lynx Point LP to list of Intel switchable hosts
uwb: fix uwb_dev_unlock() missed at an error path in uwb_rc_cmd_async()
USB: ftdi_sio: Add support for Newport AGILIS motor drivers
MAINTAINERS: remove drivers/block/ub.c
USB: chipidea: fix use after free bug
ezusb: add dependency to USB
usb: ftdi_sio: fixup BeagleBone A5+ quirk
USB: cp210x: add Virtenio Preon32 device id
usb: storage: remove redundant memset() in usb_probe_stor1()
USB: option: blacklist network interface on Huawei E173
USB: OHCI: workaround for hardware bug: retired TDs not added to the Done Queue
USB: add new zte 3g-dongle's pid to option.c
USB: opticon: switch to generic read implementation
USB: opticon: refactor reab-urb processing
USB: opticon: use usb-serial bulk-in urb
USB: opticon: increase bulk-in size
USB: opticon: use port as urb context
USB: opticon: pass port to get_serial_info
USB: opticon: make private data port specific
...
As reported https://bugzilla.kernel.org/show_bug.cgi?id=51031, the UAS
driver causes problems and has been asked to be not built into any of
the major distributions. To prevent users from running into problems
with it, and for distros that were not notified, just mark the whole
thing as broken.
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
scsi_host_alloc() will zero our private data, no need to memset it.
Signed-off-by: Yan Hong <clouds.yan@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
"Whether" is misspelled in various comments across the tree; this
fixes them. No code changes.
Signed-off-by: Adam Buchbinder <adam.buchbinder@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Implement support for WRITE SAME(10) and WRITE SAME(16) in the SCSI disk
driver.
- We set the default maximum to 0xFFFF because there are several
devices out there that only support two-byte block counts even with
WRITE SAME(16). We only enable transfers bigger than 0xFFFF if the
device explicitly reports MAXIMUM WRITE SAME LENGTH in the BLOCK
LIMITS VPD.
- max_write_same_blocks can be overriden per-device basis in sysfs.
- The UNMAP discovery heuristics remain unchanged but the discard
limits are tweaked to match the "real" WRITE SAME commands.
- In the error handling logic we now distinguish between WRITE SAME
with and without UNMAP set.
The discovery process heuristics are:
- If the device reports a SCSI level of SPC-3 or greater we'll issue
READ SUPPORTED OPERATION CODES to find out whether WRITE SAME(16) is
supported. If that's the case we will use it.
- If the device supports the block limits VPD and reports a MAXIMUM
WRITE SAME LENGTH bigger than 0xFFFF we will use WRITE SAME(16).
- Otherwise we will use WRITE SAME(10) unless the target LBA is beyond
0xFFFFFFFF or the block count exceeds 0xFFFF.
- no_write_same is set for ATA, FireWire and USB.
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Mike Snitzer <snitzer@redhat.com>
Reviewed-by: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
The REPORT SUPPORTED OPERATION CODES command can be used to query
whether a given opcode is supported by a device. Add a helper function
that allows us to look up commands.
We only issue RSOC if the device reports compliance with SPC-3 or
later. But to err on the side of caution we disable the command for ATA,
FireWire and USB.
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Acked-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
When rts51x_read_status() returns USB_STOR_TRANSPORT_ERROR,
an error happens. This patch fixes build warning as below:
drivers/usb/storage/realtek_cr.c: In function 'init_realtek_cr':
drivers/usb/storage/realtek_cr.c:476:33: warning: 'buf[15]' may be used uninitialized in this function [-Wuninitialized]
drivers/usb/storage/realtek_cr.c:455:5: note: 'buf[15]' was declared here
drivers/usb/storage/realtek_cr.c:475:33: warning: 'buf[14]' may be used uninitialized in this function [-Wuninitialized]
drivers/usb/storage/realtek_cr.c:455:5: note: 'buf[14]' was declared here
drivers/usb/storage/realtek_cr.c:474:50: warning: 'buf[13]' may be used uninitialized in this function [-Wuninitialized]
drivers/usb/storage/realtek_cr.c:455:5: note: 'buf[13]' was declared here
drivers/usb/storage/realtek_cr.c:472:30: warning: 'buf[12]' may be used uninitialized in this function [-Wuninitialized]
drivers/usb/storage/realtek_cr.c:455:5: note: 'buf[12]' was declared here
drivers/usb/storage/realtek_cr.c:471:31: warning: 'buf[11]' may be used uninitialized in this function [-Wuninitialized]
drivers/usb/storage/realtek_cr.c:455:5: note: 'buf[11]' was declared here
drivers/usb/storage/realtek_cr.c:470:31: warning: 'buf[10]' may be used uninitialized in this function [-Wuninitialized]
drivers/usb/storage/realtek_cr.c:455:5: note: 'buf[10]' was declared here
drivers/usb/storage/realtek_cr.c:469:30: warning: 'buf[9]' may be used uninitialized in this function [-Wuninitialized]
drivers/usb/storage/realtek_cr.c:455:5: note: 'buf[9]' was declared here
drivers/usb/storage/realtek_cr.c:468:27: warning: 'buf[8]' may be used uninitialized in this function [-Wuninitialized]
drivers/usb/storage/realtek_cr.c:455:5: note: 'buf[8]' was declared here
drivers/usb/storage/realtek_cr.c:468:43: warning: 'buf[7]' may be used uninitialized in this function [-Wuninitialized]
drivers/usb/storage/realtek_cr.c:455:5: note: 'buf[7]' was declared here
drivers/usb/storage/realtek_cr.c:467:30: warning: 'buf[6]' may be used uninitialized in this function [-Wuninitialized]
drivers/usb/storage/realtek_cr.c:455:5: note: 'buf[6]' was declared here
drivers/usb/storage/realtek_cr.c:466:30: warning: 'buf[5]' may be used uninitialized in this function [-Wuninitialized]
drivers/usb/storage/realtek_cr.c:455:5: note: 'buf[5]' was declared here
drivers/usb/storage/realtek_cr.c:465:28: warning: 'buf[4]' may be used uninitialized in this function [-Wuninitialized]
drivers/usb/storage/realtek_cr.c:455:5: note: 'buf[4]' was declared here
drivers/usb/storage/realtek_cr.c:464:24: warning: 'buf[3]' may be used uninitialized in this function [-Wuninitialized]
drivers/usb/storage/realtek_cr.c:455:5: note: 'buf[3]' was declared here
drivers/usb/storage/realtek_cr.c:464:40: warning: 'buf[2]' may be used uninitialized in this function [-Wuninitialized]
drivers/usb/storage/realtek_cr.c:455:5: note: 'buf[2]' was declared here
drivers/usb/storage/realtek_cr.c:463:24: warning: 'buf[1]' may be used uninitialized in this function [-Wuninitialized]
drivers/usb/storage/realtek_cr.c:455:5: note: 'buf[1]' was declared here
drivers/usb/storage/realtek_cr.c:463:40: warning: 'buf[0]' may be used uninitialized in this function [-Wuninitialized]
drivers/usb/storage/realtek_cr.c:455:5: note: 'buf[0]' was declared here
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Streamline control flow so it is easier for gcc to follow which paths
can be taken and which can't.
Fixes "warning: 'cmdinfo' may be used uninitialized in this function"
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Properly report aborted commands.
Also don't access cmdinfo after kicking task management,
it may not be valid any more once it returns.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Allocate one tag for task management functions and
use it properly.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
We need to call scsi_get_host_dev(sh) but we never use the return
nor do we have any reason to check it.
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The "Low Performance USB Block driver" has been removed which a user of
libusual. Now we have only the usb-storage driver as the only driver in
tree. This makes libusual needless.
This patch removes libusal, fixes up all users. The usual-table is now
linked into usb-storage.
usb_usual.h remains in public include directory because some staging
users seem to need it.
Signed-off-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Since the attribute avoid_reset_quirk is work for all devices including
those devices that can't morph, convert USB_QUIRK_RESET_MORPHS to
USB_QUIRK_RESET.
Signed-off-by: Lan Tianyu <tianyu.lan@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Update information of Seagate Portable HDD and WD My Passport HDD in
quirk list.
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Pankaj Kumar <pankaj.km@samsung.com>
Signed-off-by: Amit Sahrawat <a.sahrawat@samsung.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Add support for write cache quirk on usb hdd. scsi driver will be set to wce
by detecting write cache quirk in quirk list when plugging usb hdd.
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Pankaj Kumar <pankaj.km@samsung.com>
Signed-off-by: Amit Sahrawat <a.sahrawat@samsung.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Add task management support, wind up in abort and device reset error
handlers. Cancel all in-flight urbs in bus reset handler.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use separate anchors for data and sense urbs, which
I think will be useful when implementing error handling.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(1) Handle data pipe errors: When the data urb failed we
didn't transfer anything, update scsi_cmnd accordingly.
(2) Cancel data transfers when we got back an error on the
status pipe.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Set state bits after submitting data urbs & command urbs, so we know
what is in flight. Clear data bits when the data urb is finished, clear
command bit when we see the status urb for the command. Finish the scsi
command after running both status and data completion handlers for the
command.
Add a cmd status logging function for debugging purposes. Hook it into
the error handler, so we see in the log what status a command is in
which the scsi layer wants cancel.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Stop reusing sense urbs, just allocate a fresh one each time and free it
when done.
Stop storing a sense urb pointer in the scsi request, all you can do
with it is misusing. For example requeuing the sense urb, then f*ck it
up by picking the wrong one in case tagged requests don't finish in the
same order you've submitted them. Also note that (not-yet supported)
task management ops don't have a scsi request in the first place.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This reverts commit ceb3f91fd5.
IMO the real bug is assigning status urbs to scsi requests. First there
is no such link in the non-stream case. Also there isn't nessesarely a
scsi request in the first place, for example when submitting task
management requests.
This patch just papers over the real bug and introduces different status
urb handling in the stream/non-stream case for no good reason.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This reverts commit e4d8318a85.
This patch makes uas.c call usb_unlink_urb on data urbs. The data urbs
get freed in the completion callback. This is illegal according to the
usb_unlink_urb documentation.
This patch also makes the code expect the data completion callback
being called before the status completion callback. This isn't
guaranteed to be the case, even though the actual data transfer should
be finished by the time the status is received.
Background: The ehci irq handler for example only know that there are
finished transfers, it then has go check the QHs & TDs to see which
transfers did actually finish. It has no way to figure in which order
the transfers did complete. The xhci driver can call the callbacks in
completion order thanks to the event queue. This does nicely explain
why the driver is solid on a (usb2) xhci port whereas it goes crazy on
ehci in my testing.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch (as1560) reverts commit
afff07e61a (usb-storage: Add 090c:1000
to unusal-devs). It is no longer needed, because usb-storage now
tells the sd driver to try READ CAPACITY(10) before READ CAPACITY(16)
for every USB mass-storage device.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Acked-by: Hans de Goede <hdegoede@redhat.com>
CC: Matthew Dharm <mdharm-usb@one-eyed-alien.net>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Several bug reports have been received recently for USB mass-storage
devices that don't handle READ CAPACITY(16) commands properly. They
report bogus sizes, in some cases becoming unusable as a result.
The bugs were triggered by commit
09b6b51b0b (SCSI & usb-storage: add
flags for VPD pages and REPORT LUNS), which caused usb-storage to stop
overriding the SCSI level reported by devices. By default, the sd
driver will try READ CAPACITY(16) first for any device whose level is
above SCSI_SPC_2.
It seems likely that any device large enough to require the use of
READ CAPACITY(16) (i.e., 2 TB or more) would be able to handle READ
CAPACITY(10) commands properly. Indeed, I don't know of any devices
that don't handle READ CAPACITY(10) properly.
Therefore this patch (as1559) adds a new flag telling the sd driver
to try READ CAPACITY(10) before READ CAPACITY(16), and sets this flag
for every USB mass-storage device. If a device really is larger than
2 TB, sd will fall back to READ CAPACITY(16) just as it used to.
This fixes Bugzilla #43391.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Acked-by: Hans de Goede <hdegoede@redhat.com>
CC: "James E.J. Bottomley" <JBottomley@parallels.com>
CC: Matthew Dharm <mdharm-usb@one-eyed-alien.net>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This lets us catch the USB fixes that went into 3.5-rc3 into this branch,
as we want them here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This device gives a bogus answer to get_capacity(16):
[ 8628.278614] scsi 8:0:0:0: Direct-Access USB 2.0 USB Flash Drive 1100 PQ: 0 ANSI: 4
[ 8628.279452] sd 8:0:0:0: Attached scsi generic sg4 type 0
[ 8628.280338] sd 8:0:0:0: [sdd] 35747322042253313 512-byte logical blocks: (18.3 EB/15.8 EiB)
So set the quirk flag to avoid using get_capacity(16) with it:
[11731.386014] usb-storage 2-1.6:1.0: Quirks match for vid 090c pid 1000: 80000
[11731.386075] scsi9 : usb-storage 2-1.6:1.0
[11731.386172] usbcore: registered new interface driver usb-storage
[11731.386175] USB Mass Storage support registered.
[11732.387394] scsi 9:0:0:0: Direct-Access USB 2.0 USB Flash Drive 1100 PQ: 0 ANSI: 4
[11732.388462] sd 9:0:0:0: Attached scsi generic sg3 type 0
[11732.389432] sd 9:0:0:0: [sdc] 7975296 512-byte logical blocks: (4.08 GB/3.80 GiB)
Which makes the capacity look a lot more sane :)
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Tested-by: Simon Raffeiner <sturmflut@lieberbiber.de>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Fixed space issues in coding style found by
checkpatch.pl tool in drivers/usb/storage/protocol.c
Signed-off-by: Jeffrin Jose <ahiliation@yahoo.co.in>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Pull trivial updates from Jiri Kosina:
"As usual, it's mostly typo fixes, redundant code elimination and some
documentation updates."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (57 commits)
edac, mips: don't change code that has been removed in edac/mips tree
xtensa: Change mail addresses of Hannes Weiner and Oskar Schirmer
lib: Change mail address of Oskar Schirmer
net: Change mail address of Oskar Schirmer
arm/m68k: Change mail address of Sebastian Hess
i2c: Change mail address of Oskar Schirmer
net: Fix tcp_build_and_update_options comment in struct tcp_sock
atomic64_32.h: fix parameter naming mismatch
Kconfig: replace "--- help ---" with "---help---"
c2port: fix bogus Kconfig "default no"
edac: Fix spelling errors.
qla1280: Remove redundant NULL check before release_firmware() call
remoteproc: remove redundant NULL check before release_firmware()
qla2xxx: Remove redundant NULL check before release_firmware() call.
aic94xx: Get rid of redundant NULL check before release_firmware() call
tehuti: delete redundant NULL check before release_firmware()
qlogic: get rid of a redundant test for NULL before call to release_firmware()
bna: remove redundant NULL test before release_firmware()
tg3: remove redundant NULL test before release_firmware() call
typhoon: get rid of redundant conditional before all to release_firmware()
...
Fixed keyword related space issues found by
checkpatch.pl tool in drivers/usb/storage/usb.c
Signed-off-by: Jeffrin Jose <ahiliation@yahoo.co.in>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Fixed several trailing white spaces issues found
by checkpatch.pl tool in drivers/usb/storage/usb.c
Signed-off-by: Jeffrin Jose <ahiliation@yahoo.co.in>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Fixed C99 comment issue in drivers/usb/storage/usb.c
found using checkpatch.pl tool.
Signed-off-by: Jeffrin Jose <ahiliation@yahoo.co.in>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch (as1553) adds an unusual_dev entrie for the Yarvik PMP400
MP4 music player.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Reported-by: Jesse Feddema <jdfeddema@gmail.com>
Tested-by: Jesse Feddema <jdfeddema@gmail.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This resolves the conflict in:
drivers/usb/host/ehci-fsl.c
And picks up loads of xhci bugfixes to make it easier for others to test
with.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
release_firmware() tests for a NULL pointer, so it's redundant to do
that checking before calling it.
Additionally, in ene_load_bincode(), 'sd_fw' is a local variable so
setting it to NULL just before it goes out of scope is completely
pointless, so remove that assignment.
Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Merge with latest Linus' tree, as I have incoming patches
that fix code that is newer than current HEAD of for-next.
Conflicts:
drivers/net/ethernet/realtek/r8169.c
Usage of /etc/modprobe.conf file was deprecated by module-init-tools and
is no longer parsed by new kmod tool. References to this file are
replaced in Documentation, comments and Kconfig according to the
context.
There are also some references to the old /etc/modules.conf from 2.4
kernels that are being removed.
Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
Acked-by: Takashi Iwai <tiwai@suse.de>
Acked-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This patch updates Jonathan Woithe's contact details across the kernel tree.
Signed-off-by: Jonathan Woithe <jwoithe@just42.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
US_BULK_FLAG_IN is defined as 1 and not used. The USB storage spec says
that bit 7 of flags within CBW defines the data direction. 1 is DATA-IN
(read from device) and 0 is the DATA-OUT. Bit 6 is obselete and bits 0-5
are reserved.
This patch redefines the unsued define US_BULK_FLAG_IN from 1 to 1 << 7
aka 0x80 and replaces the obvious users. In a following patch the
storage gadget will use it as well.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This moves the BOT data structures for CBW and CSW from drivers internal
header file to global include able file in include/.
The storage gadget is using the same name for CSW but a different for
CBW so I fix it up properly. The same goes for the ub driver and keucr
driver in staging.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
__do_config_autodelink passes the data variable to the transport function.
If the calling functions pass a stack variable, this will eventually trigger
a DMA-API debug backtrace for mapping stack memory in the DMA buffer. Fix
this by calling kmemdup for the passed data instead.
Signed-off-by: Josh Boyer <jwboyer@redhat.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This is to pull in the xhci changes and the other fixes and device id
updates that were done in Linus's tree.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch (as1521b) fixes the interaction between usb-storage's
scanning thread and the freezer. The current implementation has a
race: If the device is unplugged shortly after being plugged in and
just as a system sleep begins, the scanning thread may get frozen
before the khubd task. Khubd won't be able to freeze until the
disconnect processing is complete, and the disconnect processing can't
proceed until the scanning thread finishes, so the sleep transition
will fail.
The implementation in the 3.2 kernel suffers from an additional
problem. There the scanning thread calls set_freezable_with_signal(),
and the signals sent by the freezer will mess up the thread's I/O
delays, which are all interruptible.
The solution to both problems is the same: Replace the kernel thread
used for scanning with a delayed-work routine on the system freezable
work queue. Freezable work queues have the nice property that you can
cancel a work item even while the work queue is frozen, and no signals
are needed.
The 3.2 version of this patch solves the problem in Bugzilla #42730.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Acked-by: Seth Forshee <seth.forshee@canonical.com>
CC: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This is done to resolve a merge conflict with:
drivers/usb/class/cdc-wdm.c
and to better handle future patches for this driver as it is under
active development at the moment.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Now that usb-storage has a target_alloc() routine, this patch (as1508)
moves some existing target-specific code out of the slave_alloc()
routine to where it really belongs.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
CC: Matthew Dharm <mdharm-usb@one-eyed-alien.net>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch (as1507) adds a skip_vpd_pages flag to struct scsi_device
and a no_report_luns flag to struct scsi_target. The first is used to
control whether sd will look at VPD pages for information on block
provisioning, limits, and characteristics. The second prevents
scsi_report_lun_scan() from issuing a REPORT LUNS command.
The patch also modifies usb-storage to set the new flag bits for all
USB devices and targets, and to stop adjusting the scsi_level value.
Historically we have seen that USB mass-storage devices often don't
support VPD pages or REPORT LUNS properly. Until now we have avoided
these things by setting the scsi_level to SCSI_2 for all USB devices.
But this has the side effect of storing the LUN bits into the second
byte of each CDB, and now we have a report of a device which doesn't
like that. The best solution is to stop abusing scsi_level and
instead have separate flags for VPD pages and REPORT LUNS.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Reported-by: Perry Wagle <wagle@mac.com>
CC: Matthew Dharm <mdharm-usb@one-eyed-alien.net>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Just run into the following:
- new disk arrived in the system
- udev couldn't wait to get its hands on to to run ata_id /dev/sda
- this sent the cdb 0xa1 to the device.
- my UAS-gadget recevied the cdb and had no idea what to do with it. It
decided to send a status URB back with sense set to invalid opcode.
- the host side received it status and completed the scsi command.
- the host sent another scsi with 4kib data buffer
- Now I was confused why the data transfer is only 512 bytes instead of
4kib since the host is always allocating the complete transfer in one
go.
- Finally the system crashed while walking through the sg list.
This patch adds three new flags in order to distinguish between DATA
URB completed and outstanding. If we receive status before data, we
cancel data and let data complete the command.
This solves the problem for IN and OUT transfers but does not work for
BIDI.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
The protocol specific structures and defines which are used by UAS are
moved into a header files by this patch so it can be accessed by the UAS
gadget as well.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
The UAS driver requires SG support by the HCD operating the device. This
patch stops UAS from operating on a HCD without sg support and prints a
message to let him know.
The spec says:
|For [USB2] backward compatibility, the device shall present [BOT] as
|alternate interface zero (primary) and [UAS] as alternate interface one
|(secondary). A device which does not need backward compatibility with
|[BOT] shall present [UAS] as alternate interface zero. In [USB2]
|systems, the [BOT] driver or an associated filter driver may need to
|issue a SET INTERFACE request for alternate interface one and then allow
|the [UAS] driver to load.
If the user used usb_modeswitch to switch to UAS then he can go back to
BOT or use a different HCD. In case UAS is the only interface then there
is currently no way out.
In future usb_sg_wait() should be extended to provide a non-blocking
interface so it can work with the UAS driver.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.11 (GNU/Linux)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=GTUe
-----END PGP SIGNATURE-----
Merge tag 'uas_for_sarah' of git://linutronix.de/users/bigeasy/linux into for-uas-next
Merge UAS bug fixes from Sebastian Andrzej Siewior, including some patches of
mine that he signed.
UAS fixes for Sarah
Enable usb-storage support dynamic id again by using a fixed id entry
that describes a device using the Bulk-Only transport with the
Transparent SCSI protocol.
Signed-off-by: Huajun Li <huajun.li.lee@gmail.com>
Reviewed-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Storage subdrivers, like alauda, datafab and others, don't support
dynamic id currently, and it needs lots of work but with very little
gain to enable the feature, so disable them in the patch.
Signed-off-by: Huajun Li <huajun.li.lee@gmail.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (53 commits)
Kconfig: acpi: Fix typo in comment.
misc latin1 to utf8 conversions
devres: Fix a typo in devm_kfree comment
btrfs: free-space-cache.c: remove extra semicolon.
fat: Spelling s/obsolate/obsolete/g
SCSI, pmcraid: Fix spelling error in a pmcraid_err() call
tools/power turbostat: update fields in manpage
mac80211: drop spelling fix
types.h: fix comment spelling for 'architectures'
typo fixes: aera -> area, exntension -> extension
devices.txt: Fix typo of 'VMware'.
sis900: Fix enum typo 'sis900_rx_bufer_status'
decompress_bunzip2: remove invalid vi modeline
treewide: Fix comment and string typo 'bufer'
hyper-v: Update MAINTAINERS
treewide: Fix typos in various parts of the kernel, and fix some comments.
clockevents: drop unknown Kconfig symbol GENERIC_CLOCKEVENTS_MIGR
gpio: Kconfig: drop unknown symbol 'CS5535_GPIO'
leds: Kconfig: Fix typo 'D2NET_V2'
sound: Kconfig: drop unknown symbol ARCH_CLPS7500
...
Fix up trivial conflicts in arch/powerpc/platforms/40x/Kconfig (some new
kconfig additions, close to removed commented-out old ones)
* 'pm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (76 commits)
PM / Hibernate: Implement compat_ioctl for /dev/snapshot
PM / Freezer: fix return value of freezable_schedule_timeout_killable()
PM / shmobile: Allow the A4R domain to be turned off at run time
PM / input / touchscreen: Make st1232 use device PM QoS constraints
PM / QoS: Introduce dev_pm_qos_add_ancestor_request()
PM / shmobile: Remove the stay_on flag from SH7372's PM domains
PM / shmobile: Don't include SH7372's INTCS in syscore suspend/resume
PM / shmobile: Add support for the sh7372 A4S power domain / sleep mode
PM: Drop generic_subsys_pm_ops
PM / Sleep: Remove forward-only callbacks from AMBA bus type
PM / Sleep: Remove forward-only callbacks from platform bus type
PM: Run the driver callback directly if the subsystem one is not there
PM / Sleep: Make pm_op() and pm_noirq_op() return callback pointers
PM/Devfreq: Add Exynos4-bus device DVFS driver for Exynos4210/4212/4412.
PM / Sleep: Merge internal functions in generic_ops.c
PM / Sleep: Simplify generic system suspend callbacks
PM / Hibernate: Remove deprecated hibernation snapshot ioctls
PM / Sleep: Fix freezer failures due to racy usermodehelper_is_disabled()
ARM: S3C64XX: Implement basic power domain support
PM / shmobile: Use common always on power domain governor
...
Fix up trivial conflict in fs/xfs/xfs_buf.c due to removal of unused
XBT_FORCE_SLEEP bit
This resolves the conflict in the arch/arm/mach-s3c64xx/s3c6400.c file,
and it fixes the build error in the arch/x86/kernel/microcode_core.c
file, that the merge did not catch.
The microcode_core.c patch was provided by Stephen Rothwell
<sfr@canb.auug.org.au> who was invaluable in the merge issues involved
with the large sysdev removal process in the driver-core tree.
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The status/sense URB is allocated on per-command basis. A read/write
looks the following way on a stream-less connection:
- send cmd tag X, queue status
- receive status, oh it is a read for tag X. queue status & read
- receive read
- receive status, oh I'm done for tag X. Cool call complete and free
status urb.
This block repeats itself 1:1 for further commands and looks great so
far. Lets take a look now what happens if we do allow multiple commands:
- send cmd tag X, queue statusX (belongs to the command with the X tag)
- send cmd tag Y, queue statusY (belongs to the command with the Y tag)
- receive statusX, oh it is a read for tag X. queue statusX & a read
- receive read
- receive statusY, oh I'm done for tag X. Cool call complete and free statusY.
- receive statusX, oh it is a read for tag Y. queue statusY & before we
queue the read the the following message can be observed:
|sd 0:0:0:0: [sda] sense urb submission failure
followed by a second attempt with the same result.
In order to address this problem we will use only one status URB for
each scsi host in case we don't have stream support (as suggested by
Matthew). This URB is requeued until the device removed. Nothing changes
on stream based endpoints.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
In "usb/uas: use unique tags for all LUNs" we make sure to create unique
tags across all LUNs. This patch uses scsi_host_find_tag() to obtain the
correct command which is associated with the tag.
The following changes are required:
- don't use sdev->current_cmnd anymore
Since we can have devices which don't support command queueing we must
ensure that we can tell the two commands apart. Even if a device
supports comand queuing we send the INQUIRY command "untagged" for
LUN1 while we can send a tagged command to LUN0 at the same time.
devinfo->cmnd is used for stashing the one "untagged" command.
- tag number is altered. If stream support is used then the tag number
must match the stream number. Therefore we can't use tag 0 and must
start at tag 1.
In case we have untagged commands (at least the first command) we must
be able to distinguish between command tag 0 (which becomes 1) and
untagged command (which becomes curently also 1).
The following tag numbers are used:
0: never
1: for untagged commands (devinfo->cmnd)
2+: tagged commands.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
I observed that on a device with multiple LUNs UAS was re-using the same
tag number for requests which were issued at the same time to both LUNs.
This patch uses scsi_init_shared_tag_map() to use unique tags for all
LUNs. With this patch I haven't seen the same tag number during the init
sequence anymore. Tag 1 is used for devices which do not adverise
command queueing.
This patch initilizes the queue before adding the scsi host like the
other two user in tree.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
In the UAS status URB completion handler, we need to free the URB, no
matter what happens. Fix a bug where we would leak the URB (and its
buffer) if we couldn't find a SCSI command that is associated with this
status phase.
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Cc: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
UAS can work with either USB 3.0 devices that support bulk streams, or
USB 2.0 devices that do not support bulk streams. When we're working
with a non-streams device, we need to be able to uniquely identify a
SCSI command with a tag in the IU. Devices will barf and abort all
queued commands if they find a duplicate tag.
uas_queuecommand_lck() sets cmdinfo->stream to zero if the device
doesn't support streams, which is later passed into uas_alloc_cmd_urb()
as the variable stream. This means the UAS driver was setting the tag
in all commands to zero for non-stream devices. So the UAS driver won't
currently work with USB 2.0 devices.
Use the SCSI command tag instead of the stream ID for the command IU
tag. We have to add one to the SCSI command tag because SCSI tags are
zero-based, but stream IDs are one-based, and the command tag must match
the stream ID that we're queueing the data IUs for. Untagged SCSI
commands use stream ID 1.
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Cc: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
If the original submission (or allocation) of the URBs for a SCSI
command fails, the UAS driver sticks the command structure in a
workqueue and schedules uas_do_work() to run. That function removes the
entire queue before walking across it and attempting to resubmit.
Unfortunately, if the second submission fails, we will leak memory
(because an allocated URB was not submitted) and possibly leave the SCSI
command partially enqueued on some of the stream rings. Fix this by
checking whether the second submission failed and re-queueing the
command to the UAS workqueue and scheduling it.
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Cc: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
* master: (848 commits)
SELinux: Fix RCU deref check warning in sel_netport_insert()
binary_sysctl(): fix memory leak
mm/vmalloc.c: remove static declaration of va from __get_vm_area_node
ipmi_watchdog: restore settings when BMC reset
oom: fix integer overflow of points in oom_badness
memcg: keep root group unchanged if creation fails
nilfs2: potential integer overflow in nilfs_ioctl_clean_segments()
nilfs2: unbreak compat ioctl
cpusets: stall when updating mems_allowed for mempolicy or disjoint nodemask
evm: prevent racing during tfm allocation
evm: key must be set once during initialization
mmc: vub300: fix type of firmware_rom_wait_states module parameter
Revert "mmc: enable runtime PM by default"
mmc: sdhci: remove "state" argument from sdhci_suspend_host
x86, dumpstack: Fix code bytes breakage due to missing KERN_CONT
IB/qib: Correct sense on freectxts increment and decrement
RDMA/cma: Verify private data length
cgroups: fix a css_set not found bug in cgroup_attach_proc
oprofile: Fix uninitialized memory access when writing to writing to oprofilefs
Revert "xen/pv-on-hvm kexec: add xs_reset_watches to shutdown watches from old kernel"
...
Conflicts:
kernel/cgroup_freezer.c
Kingston DT 101 G2 replies a wrong tag while transporting, add an
unusal_devs entry to ignore the tag validation.
Signed-off-by: Qinglin Ye <yestyle@gmail.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This pulls in the latest USB bugfixes and helps a few of the drivers
merge nicer in the future due to changes in both branches.
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* 'pm-freezer' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/misc: (24 commits)
freezer: fix wait_event_freezable/__thaw_task races
freezer: kill unused set_freezable_with_signal()
dmatest: don't use set_freezable_with_signal()
usb_storage: don't use set_freezable_with_signal()
freezer: remove unused @sig_only from freeze_task()
freezer: use lock_task_sighand() in fake_signal_wake_up()
freezer: restructure __refrigerator()
freezer: fix set_freezable[_with_signal]() race
freezer: remove should_send_signal() and update frozen()
freezer: remove now unused TIF_FREEZE
freezer: make freezing() test freeze conditions in effect instead of TIF_FREEZE
cgroup_freezer: prepare for removal of TIF_FREEZE
freezer: clean up freeze_processes() failure path
freezer: kill PF_FREEZING
freezer: test freezable conditions while holding freezer_lock
freezer: make freezing indicate freeze condition in effect
freezer: use dedicated lock instead of task_lock() + memory barrier
freezer: don't distinguish nosig tasks on thaw
freezer: remove racy clear_freeze_flag() and set PF_NOFREEZE on dead tasks
freezer: rename thaw_process() to __thaw_task() and simplify the implementation
...
The current implementation of set_freezable_with_signal() is buggy and
tricky to get right. usb-storage is the only user and its use can be
avoided trivially.
All usb-storage wants is to be able to sleep with timeout and get
woken up if freezing() becomes true. This can be trivially
implemented by doing interruptible wait w/ freezing() included in the
wait condition. There's no reason to use set_freezable_with_signal().
Perform interruptible wait on freezing() instead of using
set_freezable_with_signal(), which is scheduled for removal.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: Seth Forshee <seth.forshee@canonical.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Greg Kroah-Hartman <gregkh@suse.de>
This converts the drivers in drivers/usb/* to use the
module_usb_driver() macro which makes the code smaller and a bit
simpler.
Added bonus is that it removes some unneeded kernel log messages about
drivers loading and/or unloading.
Cc: Simon Arlott <cxacru@fire.lp0.eu>
Cc: Duncan Sands <duncan.sands@free.fr>
Cc: Matthieu CASTET <castet.matthieu@free.fr>
Cc: Stanislaw Gruszka <stf_xl@wp.pl>
Cc: Pete Zaitcev <zaitcev@redhat.com>
Cc: Oliver Neukum <oliver@neukum.name>
Cc: Juergen Stuber <starblue@users.sourceforge.net>
Cc: Cesar Miquel <miquel@df.uba.ar>
Cc: Matthew Dharm <mdharm-usb@one-eyed-alien.net>
Cc: Matthew Wilcox <willy@linux.intel.com>
Cc: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Cc: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Cc: Felipe Balbi <balbi@ti.com>
Cc: Lucas De Marchi <lucas.demarchi@profusion.mobi>
Cc: Michael Hund <mhund@ld-didactic.de>
Cc: Zack Parsons <k3bacon@gmail.com>
Cc: Melchior FRANZ <mfranz@aon.at>
Cc: Tomoki Sekiyama <tomoki.sekiyama@gmail.com>
Cc: Dan Carpenter <error27@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Use kmemdup rather than duplicating its implementation
The semantic patch that makes this change is available
in scripts/coccinelle/api/memdup.cocci.
Signed-off-by: Thomas Meyer <thomas@m3y3r.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Fix the following sparse warning:
| drivers/usb/storage/shuttle_usbat.c:173:22: warning:
| symbol 'usbat_usb_ids' was not declared. Should
| it be static?
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Fix the following sparse warning:
| drivers/usb/storage/sddr55.c:51:22: warning: symbol
| 'sddr55_usb_ids' was not declared. Should it
| be static?
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Fix the following sparse warning:
| drivers/usb/storage/sddr09.c:74:22: warning: symbol
| 'sddr09_usb_ids' was not declared. Should it
| be static?
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Fix the following sparse warnings:
| drivers/usb/storage/realtek_cr.c:821:6: warning: symbol
| 'rts51x_invoke_transport' was not declared. Should
| it be static?
|
| drivers/usb/storage/realtek_cr.c:980:5: warning: symbol
| 'realtek_cr_suspend' was not declared. Should it
| be static?
|
| drivers/usb/storage/realtek_cr.c:518:23: warning: cast
| truncates bits from constant value (fe47 becomes 47)
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Fix the following sparse warning:
| drivers/usb/storage/onetouch.c:72:22: warning: symbol
| 'onetouch_usb_ids' was not declared. Should it
| be static?
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Fix the following sparse warning:
| drivers/usb/storage/karma.c:62:22: warning: symbol
| 'karma_usb_ids' was not declared. Should it
| be static?
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Fix the following sparse warning:
| drivers/usb/storage/jumpshot.c:74:22: warning: symbol
| 'jumpshot_usb_ids' was not declared. Should it
| be static?
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Fix the following sparse warning:
| drivers/usb/storage/freecom.c:122:22: warning: symbol
| 'freecom_usb_ids' was not declared. Should it
| be static?
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Fix the following sparse warning:
| drivers/usb/storage/freecom.c:122:22: warning: symbol
| 'freecom_usb_ids' was not declared. Should it
| be static?
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Fix the following sparse warnings:
| drivers/usb/storage/ene_ub6250.c:45:22: warning: symbol
| 'ene_ub6250_usb_ids' was not declared. Should it
| be static?
|
| drivers/usb/storage/ene_ub6250.c:780:5: warning: symbol
| 'ms_lib_alloc_logicalmap' was not declared. Should it
| be static?
|
| drivers/usb/storage/ene_ub6250.c:2251:5: warning: symbol
| 'ms_scsi_irp' was not declared. Should it be static?
|
| drivers/usb/storage/ene_ub6250.c:638:29: warning: right shift by bigger
| than source value
|
| drivers/usb/storage/ene_ub6250.c:639:29: warning: right shift by bigger
| than source value
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Fix the following sparse warning:
| drivers/usb/storage/datafab.c:91:22: warning: symbol
| 'datafab_usb_ids' was not declared. Should it
| be static?
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Fix the following sparse warning:
| drivers/usb/storage/cypress_atacb.c:46:22: warning:
| symbol 'cypress_usb_ids' was not declared. Should
| it be static?
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Fix the following warning:
| drivers/usb/storage/alauda.c:142:22: warning: symbol
| 'alauda_usb_ids' was not declared. Should it
| be static?
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Fix the following compile warning:
| drivers/usb/storage/ene_ub6250.c: In function ‘ms_scsi_write’:
| drivers/usb/storage/ene_ub6250.c:1728:6: warning: ‘result’ may \
| be used uninitialized in this function [-Wuninitialized]
| drivers/usb/storage/ene_ub6250.c:1795:77: warning: ‘offset’ may \
| be used uninitialized in this function [-Wuninitialized]
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The 8020i protocol (also 8070i and QIC-157) uses 12-byte commands;
shorter commands must be padded. Simon Detheridge reports that his
3-TB USB disk drive claims to use the 8020i protocol (which is
normally meant for ATAPI devices like CD drives), and because of its
large size, the disk drive requires the use of 16-byte commands.
However the usb_stor_pad12_command() routine in usb-storage always
sets the command length to 12, making the drive impossible to use.
Since the SFF-8020i specification allows for 16-byte commands in
future extensions, we may as well accept them. This patch (as1490)
changes usb_stor_pad12_command() to leave commands larger than 12
bytes alone rather than truncating them.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Tested-by: Simon Detheridge <simon@widgit.com>
CC: Matthew Dharm <mdharm-usb@one-eyed-alien.net>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
With module.h being implicitly everywhere via device.h, the absence
of explicitly including something for EXPORT_SYMBOL went unnoticed.
Since we are heading to fix things up and clean module.h from the
device.h file, we need to explicitly include these files now.
Use the lightweight version of the header that has just THIS_MODULE
and EXPORT_SYMBOL variants.
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
The situation up to this point meant that module.h was pretty
much everywhere, regardless of whether you asked for it or not.
We are fixing that, so give the USB folks who want it an actual
include of it.
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
* 'usb-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (260 commits)
usb: renesas_usbhs: fixup inconsistent return from usbhs_pkt_push()
usb/isp1760: Allow to optionally trigger low-level chip reset via GPIOLIB.
USB: gadget: midi: memory leak in f_midi_bind_config()
USB: gadget: midi: fix range check in f_midi_out_open()
QE/FHCI: fixed the CONTROL bug
usb: renesas_usbhs: tidyup for smatch warnings
USB: Fix USB Kconfig dependency problem on 85xx/QoirQ platforms
EHCI: workaround for MosChip controller bug
usb: gadget: file_storage: fix race on unloading
USB: ftdi_sio.c: Use ftdi async_icount structure for TIOCMIWAIT, as in other drivers
USB: ftdi_sio.c:Fill MSR fields of the ftdi async_icount structure
USB: ftdi_sio.c: Fill LSR fields of the ftdi async_icount structure
USB: ftdi_sio.c:Fill TX field of the ftdi async_icount structure
USB: ftdi_sio.c: Fill the RX field of the ftdi async_icount structure
USB: ftdi_sio.c: Basic icount infrastructure for ftdi_sio
usb/isp1760: Let OF bindings depend on general CONFIG_OF instead of PPC_OF .
USB: ftdi_sio: Support TI/Luminary Micro Stellaris BD-ICDI Board
USB: Fix runtime wakeup on OHCI
xHCI/USB: Make xHCI driver have a BOS descriptor.
usb: gadget: add new usb gadget for ACM and mass storage
...
After auto-delink command is triggered, the CSW won't be sent back
to host side, in which scenario, the USB Mass Storage driver will
wait for the completion of the URB for MAX_SCHEDULE_TIMEOUT.
Signed-off-by: edwin_rong <edwin_rong@realsil.com.cn>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
A typo in the configuration variable name prevents from activating the
USB autosuspend on the device.
Signed-off-by: Vincent Palatin <vpalatin@chromium.org>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
It was pointed out by 'make versioncheck' that linux/version.h was not
always being included where needed and sometimes included needlessly
in drivers/usb/.
This patch fixes up the includes.
For the UVC gadget driver bits, this was ACK'ed by Laurent Pinchart.
Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This patch solves two things:
1) Enables autosense emulation code to correctly
interpret descriptor format sense data, and
2) Fixes a bug whereby the autosense emulation
code would overwrite descriptor format sense data
with SENSE KEY HARDWARE ERROR in fixed format, to
incorrectly look like this:
Oct 21 14:11:07 localhost kernel: sd 7:0:0:0: [sdc] Sense Key : Recovered Error [current] [descriptor]
Oct 21 14:11:07 localhost kernel: Descriptor sense data with sense descriptors (in hex):
Oct 21 14:11:07 localhost kernel: 72 01 04 1d 00 00 00 0e 09 0c 00 00 00 00 00 00
Oct 21 14:11:07 localhost kernel: 00 4f 00 c2 00 50
Oct 21 14:11:07 localhost kernel: sd 7:0:0:0: [sdc] ASC=0x4 ASCQ=0x1d
Signed-off-by: Luben Tuikov <ltuikov@yahoo.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Acked-by: Matthew Dharm <mdharm-usb@one-eyed-alien.net>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch changes rts51x_read_mem, rts51x_write_mem, and rts51x_read_status to
allocate temporary buffers with kmalloc. This way stack addresses are not used
for DMA when these functions call rts51x_bulk_transport.
Signed-off-by: Adam Cozzette <acozzette@cs.hmc.edu>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Scanning cannot be run during suspend or hibernation, but if
usb-stor-scan freezes another thread waiting on scanning to
complete may fail to freeze.
However, if usb-stor-scan is left freezable without ever actually
freezing then the freezer will wait on it to exit, and threads
waiting for scanning to finish will no longer be blocked. One
problem with this approach is that usb-stor-scan has a delay to
wait for devices to settle (which is currently the only point where
it can freeze). To work around this we can request that the freezer
send a fake signal when freezing, then use interruptible sleep to
wake the thread early when freezing happens.
To make this happen, the following changes are made to
usb-stor-scan:
* Use set_freezable_with_signal() instead of set_freezable() to
request a fake signal when freezing
* Use wait_event_interruptible_timeout() instead of
wait_event_freezable_timeout() to avoid freezing
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Connecting the V2M to a Linux host results in a constant stream of
errors spammed to the console, all of the form
sd 1:0:0:0: ioctl_internal_command return code = 8070000
: Sense Key : 0x4 [current]
: ASC=0x0 ASCQ=0x0
The errors appear to be otherwise harmless. Add an unusual_devs entry
which eliminates all of the error messages.
Signed-off-by: Nick Bowler <nbowler@elliptictech.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* 'staging-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6: (741 commits)
staging:iio:meter:ade7753 should be 16 bit read not 8 bit for mode register.
staging:iio:kfifo_buf fix double initialization of the ring device structure.
staging:iio:accel:lis3l02dq: fix incorrect pointer passed to spi_set_drvdata.
staging:iio:imu fix missing register table index for some channels
spectra: enable device before poking it
staging: rts_pstor: Fix a miswriting
staging/lirc_bt829: Return -ENODEV when no hardware is found.
staging/lirc_parallel: remove pointless prototypes.
staging/lirc_parallel: fix panic on rmmod
staging:iio:adc:ad7476: Incorrect pointer into spi_set_drvdata.
Staging: zram: Fix kunmapping order
Revert "gma500: Fix dependencies"
gma500: Add medfield header
gma500: wire up the mrst i2c bus from chip_info
gma500: Fix DPU build
gma500: Clean up the DPU config and make it runtime
gma500: resync with Medfield progress
gma500: Use the mrst helpers and power control for mode commit
gma500@ Fix backlight range error
gma500: More Moorestown muddle meddling means MM maybe might modeset
...
Fix up fairly trivial conflicts all over, mostly due to header file
cleanup conflicts, but some deleted files and some just context changes:
- Documentation/feature-removal-schedule.txt
- drivers/staging/bcm/headers.h
- drivers/staging/brcm80211/brcmfmac/dhd_linux.c
- drivers/staging/brcm80211/brcmfmac/dhd_sdio.c
- drivers/staging/brcm80211/brcmfmac/wl_cfg80211.h
- drivers/staging/brcm80211/brcmfmac/wl_iw.c
- drivers/staging/et131x/et131x_netdev.c
- drivers/staging/rtl8187se/ieee80211/ieee80211_softmac.c
- drivers/staging/rtl8192e/r8192E.h
- drivers/staging/usbip/userspace/src/utils.h
Merge ENE UB6250 MS card codes from keucr to drivers/usb/storage/ene_ub6250.c.
Signed-off-by: Cho, Yu-Chen <acho@novell.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The autosuspend function can be disabled by unchecking the Macro
CONFIG_REALTEK_AUTOPM in kernel config file, by default, this macro is
turned on.
Signed-off-by: edwin_rong <edwin_rong@realsil.com.cn>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Some USB mass-storage devices have bugs that cause them not to handle
the first READ(10) command they receive correctly. The Corsair
Padlock v2 returns completely bogus data for its first read (possibly
it returns the data in encrypted form even though the device is
supposed to be unlocked). The Feiya SD/SDHC card reader fails to
complete the first READ(10) command after it is plugged in or after a
new card is inserted, returning a status code that indicates it thinks
the command was invalid, which prevents the kernel from retrying the
read.
Since the first read of a new device or a new medium is for the
partition sector, the kernel is unable to retrieve the device's
partition table. Users have to manually issue an "hdparm -z" or
"blockdev --rereadpt" command before they can access the device.
This patch (as1470) works around the problem. It adds a new quirk
flag, US_FL_INVALID_READ10, indicating that the first READ(10) should
always be retried immediately, as should any failing READ(10) commands
(provided the preceding READ(10) command succeeded, to avoid getting
stuck in a loop). The patch also adds appropriate unusual_devs
entries containing the new flag.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Tested-by: Sven Geggus <sven-usbst@geggus.net>
Tested-by: Paul Hartman <paul.hartman+linux@gmail.com>
CC: Matthew Dharm <mdharm-usb@one-eyed-alien.net>
CC: <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* 'usb-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: (205 commits)
USB: EHCI: Remove SPARC_LEON {read,write}_be definitions from ehci.h
USB: UHCI: Support big endian GRUSBHC HC
sparc: add {read,write}*_be routines
USB: UHCI: Add support for big endian descriptors
USB: UHCI: Use ACCESS_ONCE rather than using a full compiler barrier
USB: UHCI: Add support for big endian mmio
usb-storage: Correct adjust_quirks to include latest flags
usb/isp1760: Fix possible unlink problems
usb/isp1760: Move function isp1760_endpoint_disable() within file.
USB: remove remaining usages of hcd->state from usbcore and fix regression
usb: musb: ux500: add configuration and build options for ux500 dma
usb: musb: ux500: add dma glue layer for ux500
usb: musb: ux500: add dma name for ux500
usb: musb: ux500: add ux500 specific code for gadget side
usb: musb: fix compile error
usb-storage: fix up the unusual_realtek device list
USB: gadget: f_audio: Fix invalid dereference of initdata
EHCI: don't rescan interrupt QHs needlessly
OHCI: fix regression caused by nVidia shutdown workaround
USB: OTG: msm: Free VCCCX regulator even if we can't set the voltage
...
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (39 commits)
b43: fix comment typo reqest -> request
Haavard Skinnemoen has left Atmel
cris: typo in mach-fs Makefile
Kconfig: fix copy/paste-ism for dell-wmi-aio driver
doc: timers-howto: fix a typo ("unsgined")
perf: Only include annotate.h once in tools/perf/util/ui/browsers/annotate.c
md, raid5: Fix spelling error in comment ('Ofcourse' --> 'Of course').
treewide: fix a few typos in comments
regulator: change debug statement be consistent with the style of the rest
Revert "arm: mach-u300/gpio: Fix mem_region resource size miscalculations"
audit: acquire creds selectively to reduce atomic op overhead
rtlwifi: don't touch with treewide double semicolon removal
treewide: cleanup continuations and remove logging message whitespace
ath9k_hw: don't touch with treewide double semicolon removal
include/linux/leds-regulator.h: fix syntax in example code
tty: fix typo in descripton of tty_termios_encode_baud_rate
xtensa: remove obsolete BKL kernel option from defconfig
m68k: fix comment typo 'occcured'
arch:Kconfig.locks Remove unused config option.
treewide: remove extra semicolons
...
Commits ae38c78a03
and 00914025cc added quirk flags
US_FL_NO_READ_DISC_INFO and US_FL_NO_READ_CAPACITY_16 to
the usb-storage driver. However they did not add the corresponding flags
to adjust_quirks() in usb.c, so there was no facility for a user
to over-ride/add them via the quirks module parameter.
Signed-off-by: Karl Relton <karllinuxtest.relton@ntlworld.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch (as1461) fixes the unusual_devs entries for the Realtek USB
card reader. They should be ordered by PID, and they should not
override the Subclass and Protocol values provided by the device.
Otherwise a notification about unnecessary entries gets printed in the
kernel log during probing.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Tested-By: Tony Vroon <tony@linx.net>
CC: <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The isd200 sub-driver increments the command serial number despite not
using it at all in it's routine for sending internal scsi commands.
Remove the increment to prepare for removing the serial_number field.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Using C line continuation inside format strings is error prone.
Clean up the unintended whitespace introduced by misuse of \.
Neaten correctly used line continations as well for consistency.
drivers/scsi/arcmsr/arcmsr_hba.c has these errors as well,
but arcmsr needs a lot more work and the driver should likely be
moved to staging instead.
Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* 'staging-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6: (961 commits)
staging: hv: fix memory leaks
staging: hv: Remove NULL check before kfree
Staging: hv: Get rid of vmbus_child_dev_add()
Staging: hv: Change the signature for vmbus_child_device_register()
Staging: hv: Get rid of vmbus_cleanup() function
Staging: hv: Get rid of vmbus_dev_rm() function
Staging: hv: Change the signature for vmbus_on_isr()
Staging: hv: Eliminate vmbus_event_dpc()
Staging: hv: Get rid of the function vmbus_msg_dpc()
Staging: hv: Change the signature for vmbus_cleanup()
Staging: hv: Simplify root device management
staging: rtl8192e: Don't copy dev pointer to skb
staging: rtl8192e: Pass priv to cmdpkt functions
staging: rtl8192e: Pass priv to firmware download functions
staging: rtl8192e: Pass priv to rtl8192_interrupt
staging: rtl8192e: Pass rtl8192_priv to dm functions
staging: rtl8192e: Pass ieee80211_device to callbacks
staging: rtl8192e: Pass ieee80211_device to callbacks
staging: rtl8192e: Pass ieee80211_device to callbacks
staging: rtl8192e: Pass ieee80211_device to callbacks
...
Move the USB_STORAGE_ENE_UB6250 entry so that it stays under the
USB_STORAGE menu.
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Fix ene_ub6250 build: it uses usb_storage driver interfaces, so it
should depend on USB_STORAGE.
ene_ub6250.c:(.text+0x14ff19): undefined reference to `usb_stor_reset_resume'
ene_ub6250.c:(.text+0x14ffb1): undefined reference to `usb_stor_bulk_transfer_buf'
ene_ub6250.c:(.text+0x14ffdd): undefined reference to `usb_stor_bulk_srb'
ene_ub6250.c:(.text+0x14fff1): undefined reference to `usb_stor_bulk_transfer_sg'
ene_ub6250.c:(.text+0x1503dd): undefined reference to `usb_stor_set_xfer_buf'
ene_ub6250.c:(.text+0x15048e): undefined reference to `usb_stor_access_xfer_buf'
ene_ub6250.c:(.text+0x150723): undefined reference to `usb_stor_probe1'
ene_ub6250.c:(.text+0x150795): undefined reference to `usb_stor_probe2'
ene_ub6250.c:(.text+0x1507af): undefined reference to `usb_stor_disconnect'
drivers/built-in.o:(.data+0x10224): undefined reference to `usb_stor_suspend'
drivers/built-in.o:(.data+0x10230): undefined reference to `usb_stor_pre_reset'
drivers/built-in.o:(.data+0x10234): undefined reference to `usb_stor_post_reset'
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
"buf" gets allocated twice in a row. It's the second allocation which
is correct. The first one should be removed.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: huajun li <huajun.li.lee@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The usb portion of this driver can now go into drivers/usb/storage.
This leaves the non-usb portion of the code still in staging.
Signed-off-by: Huajun Li <huajun.li.lee@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This is needed to resolve some merge conflicts that were found
in the USB host controller patches, and reported by Stephen Rothwell.
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch (as1444) adds an unusual_devs entry for an MP3 player from
Coby electronics. The device has two nasty bugs.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Tested-by: Jasper Mackenzie <scarletpimpernal@hotmail.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This device suffers from the off-by-one error when reporting the capacity,
so add entry with US_FL_FIX_CAPACITY.
Signed-off-by: Nick Holloway <Nick.Holloway@pyrites.org.uk>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
ums_realtek is used to support the power-saving function
for Realtek RTS51xx USB card readers.
Signed-off-by: wwang <wei_wang@realsil.com.cn>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch (as1438) adds an unusual_devs entry for the MagicPixel
FW_Omega2 chip, used in the CamSport Evo camera. The firmware
incorrectly reports a vendor-specific bDeviceClass.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Reported-by: <ttkspam@free.fr>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The TrekStor DataStation maxi g.u external hard drive enclosure uses a
JMicron USB to SATA chip which needs the US_FL_IGNORE_RESIDUE flag to work
properly.
Signed-off-by: Richard Schütz <r.schtz@t-online.de>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
New device ID added for unusual Cypress ATACB device.
Signed-off-by: Richard Schütz <r.schtz@t-online.de>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This is to resolve the conflict in the file,
drivers/usb/gadget/composite.c that was due to a revert in Linus's tree
needed for the 2.6.37 release.
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Add an unusual_devs entry for the Samsung YP-CP3 MP4 player.
User was getting the following errors in dmesg:
usb 2-6: reset high speed USB device using ehci_hcd and address 2
usb 2-6: reset high speed USB device using ehci_hcd and address 2
usb 2-6: reset high speed USB device using ehci_hcd and address 2
usb 2-6: USB disconnect, address 2
sd 3:0:0:0: [sdb] Assuming drive cache: write through
sdb:<2>ldm_validate_partition_table(): Disk read failed.
Dev sdb: unable to read RDB block 0
unable to read partition table
Signed-off-by: Vitaly Kuznetsov <vitty@altlinux.ru>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
CC: Matthew Dharm <mdharm-usb@one-eyed-alien.net>
CC: stable@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* usb-next: (132 commits)
USB: uas: Use GFP_NOIO instead of GFP_KERNEL in I/O submission path
USB: uas: Ensure we only bind to a UAS interface
USB: uas: Rename sense pipe and sense urb to status pipe and status urb
USB: uas: Use kzalloc instead of kmalloc
USB: uas: Fix up the Sense IU
usb: musb: core: kill unneeded #include's
DA8xx: assign name to MUSB IRQ resource
usb: gadget: g_ncm added
usb: gadget: f_ncm.c added
usb: gadget: u_ether: prepare for NCM
usb: pch_udc: Fix setup transfers with data out
usb: pch_udc: Fix compile error, warnings and checkpatch warnings
usb: add ab8500 usb transceiver driver
USB: gadget: Implement runtime PM for MSM bus glue driver
USB: gadget: Implement runtime PM for ci13xxx gadget
USB: gadget: Add USB controller driver for MSM SoC
USB: gadget: Introduce ci13xxx_udc_driver struct
USB: gadget: Initialize ci13xxx gadget device's coherent DMA mask
USB: gadget: Fix "scheduling while atomic" bugs in ci13xxx_udc
USB: gadget: Separate out PCI bus code from ci13xxx_udc
...
If swap is on a UAS device, we could recurse into the driver by using
GFP_KERNEL. Using GFP_NOIO ensures we won't.
Reported-by: James Bottomley <James.Bottomley@suse.de>
Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
While all existing UAS devices use alternate interface 1, this is not
guaranteed, and it has caused confusion with people trying to bind the
uas driver to non-uas devices.
Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The spec calls this the status pipe. While it is used to receive sense IUs,
it is also used to receive other IUs, so this can be confusing.
Reported-by: Luben Tuikov <ltuikov@yahoo.com>
Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The IUs are not being fully initialised by the driver (due to the reserved
space). Since we should be zeroing reserved fields, use kzalloc to do
it for us.
Reported-by: Luben Tuikov <ltuikov@yahoo.com>
Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Add a comment to the Sense IU data structure that it's also used for Read
Ready and Write Ready. Remove the 'service response' element since it's
gone from the current draft (04).
Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Move the mid-layer's ->queuecommand() invocation from being locked
with the host lock to being unlocked to facilitate speeding up the
critical path for drivers who don't need this lock taken anyway.
The patch below presents a simple SCSI host lock push-down as an
equivalent transformation. No locking or other behavior should change
with this patch. All existing bugs and locking orders are preserved.
Additionally, add one parameter to queuecommand,
struct Scsi_Host *
and remove one parameter from queuecommand,
void (*done)(struct scsi_cmnd *)
Scsi_Host* is a convenient pointer that most host drivers need anyway,
and 'done' is redundant to struct scsi_cmnd->scsi_done.
Minimal code disturbance was attempted with this change. Most drivers
needed only two one-line modifications for their host lock push-down.
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Acked-by: James Bottomley <James.Bottomley@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
REQ_HARDBARRIER is dead now, so remove the leftovers. What's left
at this point is:
- various checks inside the block layer.
- sanity checks in bio based drivers.
- now unused bio_empty_barrier helper.
- Xen blockfront use of BLKIF_OP_WRITE_BARRIER - it's dead for a while,
but Xen really needs to sort out it's barrier situaton.
- setting of ordered tags in uas - dead code copied from old scsi
drivers.
- scsi different retry for barriers - it's dead and should have been
removed when flushes were converted to FS requests.
- blktrace handling of barriers - removed. Someone who knows blktrace
better should add support for REQ_FLUSH and REQ_FUA, though.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
For all modules, change <module>-objs to <module>-y; remove
if-statements and replace with lists using the kbuild idiom; move
flags to the top of the file; and fix alignment while trying to
maintain the original scheme in each file.
None of the dependencies are modified.
Signed-off-by: matt mooney <mfm@muteddisk.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Some Rockbox based mp4 players will crash when ever they see a
read_capacity_16 scsi command. So add a new US_FL which tells the scsi sd
driver to not issue any read_capacity_16 scsi commands.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Matthew Dharm <mdharm-usb@one-eyed-alien.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Appotech ax3003 (the larger brother of the ax203) based devices are even
more buggy then the ax203. They will go of into lala land when ever they
see a READ_DISC_INFO scsi command. So add a new US_FL which tells the
scsi sr driver to not issue any READ_DISC_INFO scsi commands.
[akpm@linux-foundation.org: fix build]
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Matthew Dharm <mdharm-usb@one-eyed-alien.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
USB Attached SCSI is a new protocol specified jointly by the SCSI T10
committee and the USB Implementors Forum.
Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Cc: Matthew Dharm <mdharm-usb@one-eyed-alien.net>
[mina86@mina86.com: updated to use new USB_ prefix]
Signed-off-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit changes prefix for some of the USB mass storage
class related macros (ie. USB_SC_ for subclass and USB_PR_
for class).
Signed-off-by: Michal Nazarewicz <mina86@mina86.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The patch below updates broken web addresses in the kernel
Signed-off-by: Justin P. Mattock <justinmattock@gmail.com>
Cc: Maciej W. Rozycki <macro@linux-mips.org>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Finn Thain <fthain@telegraphics.com.au>
Cc: Randy Dunlap <rdunlap@xenotime.net>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Dimitry Torokhov <dmitry.torokhov@gmail.com>
Cc: Mike Frysinger <vapier.adi@gmail.com>
Acked-by: Ben Pfaff <blp@cs.stanford.edu>
Acked-by: Hans J. Koch <hjk@linutronix.de>
Reviewed-by: Finn Thain <fthain@telegraphics.com.au>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This patch (as1400) adds runtime-PM support to usb-storage. It
utilizes the SCSI layer's runtime-PM implementation, so its scope is
limited. Currently the only effect is that disk-like devices (such as
card readers or flash drives) will be autosuspended if they aren't
mounted and their device files aren't open. This would apply, for
example, to card readers that don't contain a memory card.
Unfortunately this won't interact very well with the removable-media
polling normally carried out by hal or DeviceKit. Maybe those
programs can be changed to use a longer polling interval, or maybe the
default autosuspend time for usb-storage should be set to something
below 1 second.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Cc: James Bottomley <James.Bottomley@suse.de>
Cc: Matthew Dharm <mdharm-usb@one-eyed-alien.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Fixed several coding style issues in freecom.c.
Signed-off-by: Martin Enderleit <menderleit@gmail.com>
Cc: Matthew Dharm <mdharm-usb@one-eyed-alien.net>
Cc: Daniel Mack <daniel@caiaq.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Commit 0ede76fcec, "USB: remove uses of
URB_NO_SETUP_DMA_MAP" introduced a regression by inadvertantly removing
initialization of the transfer flags. This caused initialization
failures in the ums-karma driver. Fix the regression by zeroing it.
While at it, as Alan Stern points out, the initializers for
actual_length and status are handled by the core and error_count
only matters for isochronous urbs, so they don't need to be set here.
Remove them.
Signed-off-by: Bob Copeland <me@bobcopeland.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Right now quirks are printed only when the are manually overriden with
the module parameters. It's not so useful to remind the user that his
parameters are correctly applied; what is useful is to print out the
quirks the user is not aware are being applied.
So let's do the smart thing and print the quirks when they are present.
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Matthew Dharm <mdharm-usb@one-eyed-alien.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Use pr_foo and dev_foo instead of printk. Maybe US_DEBUG* should be
replaced too.
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Cc: Matthew Dharm <mdharm-usb@one-eyed-alien.net>
Cc: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
These Appotech controllers are found in Picture Frames, they provide a
(buggy) emulation of a cdrom drive which contains the windows software
Uploading of pictures happens over the corresponding /dev/sg device.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
For more clearance what the functions actually do,
usb_buffer_alloc() is renamed to usb_alloc_coherent()
usb_buffer_free() is renamed to usb_free_coherent()
They should only be used in code which really needs DMA coherency.
All call sites have been changed accordingly, except for staging
drivers.
Signed-off-by: Daniel Mack <daniel@caiaq.de>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Pedro Ribeiro <pedrib@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
It seems unlikely that this entry is needed anymore since the kernel
has logic to handle devices that poorly respond to INQUIRY. Since we
now have another entry with the same VID/PID but different flags, it's
a good time to attempt to clean this up.
The original submitter's email no longer works, so we'll keep an eye
out for any regression reports.
Signed-off-by: Phil Dibowitz <phil@ipom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch (as1350) removes all usages of coherent buffers for USB
control-request setup-packet buffers. There's no good reason to
reserve coherent memory for these things; control requests are hardly
ever used in large quantity (the major exception is firmware
transfers, and they aren't time-critical). Furthermore, only seven
drivers used it. We might as well always use streaming DMA mappings
for setup-packet buffers, and remove some extra complexity from
usbcore.
The DMA-mapping portion of hcd.c is currently in flux. A separate
patch will be submitted to remove support for URB_NO_SETUP_DMA_MAP
after everything else settles down. The removal should go smoothly,
as by then nobody will be using it.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The compiler throws the following warning when compiling for a PowerPC 64
bit machine:
drivers/usb/storage/isd200.c:580: warning: the frame size of 2208 bytes is larger than 2048 bytes
There is a struct scsi_device which is placed on the stack and is
largely responsible for such wastage. The struct is just a dummy struct
filled with NULLs and set as the scsi_cmnd->device to make the
usb_stor_Bulk_transport function happy.
This patch makes the struct static, so that it is never placed onto the
stack and silences the compiler warning.
Signed-off-by: Ian Munsie <imunsie@au.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
percpu.h is included by sched.h and module.h and thus ends up being
included when building most .c files. percpu.h includes slab.h which
in turn includes gfp.h making everything defined by the two files
universally available and complicating inclusion dependencies.
percpu.h -> slab.h dependency is about to be removed. Prepare for
this change by updating users of gfp and slab facilities include those
headers directly instead of assuming availability. As this conversion
needs to touch large number of source files, the following script is
used as the basis of conversion.
http://userweb.kernel.org/~tj/misc/slabh-sweep.py
The script does the followings.
* Scan files for gfp and slab usages and update includes such that
only the necessary includes are there. ie. if only gfp is used,
gfp.h, if slab is used, slab.h.
* When the script inserts a new include, it looks at the include
blocks and try to put the new include such that its order conforms
to its surrounding. It's put in the include block which contains
core kernel includes, in the same order that the rest are ordered -
alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
doesn't seem to be any matching order.
* If the script can't find a place to put a new include (mostly
because the file doesn't have fitting include block), it prints out
an error message indicating which .h file needs to be added to the
file.
The conversion was done in the following steps.
1. The initial automatic conversion of all .c files updated slightly
over 4000 files, deleting around 700 includes and adding ~480 gfp.h
and ~3000 slab.h inclusions. The script emitted errors for ~400
files.
2. Each error was manually checked. Some didn't need the inclusion,
some needed manual addition while adding it to implementation .h or
embedding .c file was more appropriate for others. This step added
inclusions to around 150 files.
3. The script was run again and the output was compared to the edits
from #2 to make sure no file was left behind.
4. Several build tests were done and a couple of problems were fixed.
e.g. lib/decompress_*.c used malloc/free() wrappers around slab
APIs requiring slab.h to be added manually.
5. The script was run on all .h files but without automatically
editing them as sprinkling gfp.h and slab.h inclusions around .h
files could easily lead to inclusion dependency hell. Most gfp.h
inclusion directives were ignored as stuff from gfp.h was usually
wildly available and often used in preprocessor macros. Each
slab.h inclusion directive was examined and added manually as
necessary.
6. percpu.h was updated not to include slab.h.
7. Build test were done on the following configurations and failures
were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my
distributed build env didn't work with gcov compiles) and a few
more options had to be turned off depending on archs to make things
build (like ipr on powerpc/64 which failed due to missing writeq).
* x86 and x86_64 UP and SMP allmodconfig and a custom test config.
* powerpc and powerpc64 SMP allmodconfig
* sparc and sparc64 SMP allmodconfig
* ia64 SMP allmodconfig
* s390 SMP allmodconfig
* alpha SMP allmodconfig
* um on x86_64 SMP allmodconfig
8. percpu.h modifications were reverted so that it could be applied as
a separate patch and serve as bisection point.
Given the fact that I had only a couple of failures from tests on step
6, I'm fairly confident about the coverage of this conversion patch.
If there is a breakage, it's likely to be something in one of the arch
headers which should be easily discoverable easily on most builds of
the specific arch.
Signed-off-by: Tejun Heo <tj@kernel.org>
Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
One last bit was missed while removing the USB_BERRY_CHARGE config
option in a8d4211f33 which gets dropped
by this patch.
Signed-off-by: Christoph Egger <siccegge@stud.informatik.uni-erlangen.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Due to a misplaced parenthesis the usbat_write_block() return value was not
stored, but a boolean. USB_STOR_TRANSPORT_NO_SENSE and USB_STOR_TRANSPORT_ERROR
were returned as USB_STOR_TRANSPORT_FAILED.
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Cc: Joe Perches <joe@perches.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch (as1347) makes some adjustments to the way usb-storage
handles the request-queue parameters.
USB host controllers are able to handle arbitrarily long
scatter-gather lists, since they are limited only by main memory and
not by the controller hardware. Hence the sg_tablesize field in the
host template can be increased to the maximum value.
Drivers like usb-storage aren't supposed to touch the queue's
max_sectors parameter; instead they are supposed to use the
max_hw_sectors value. Accordingly, the patch replaces calls of
queue_max_sectors() with calls of queue_max_hw_sectors(). Oddly
enough, the blk_queue_max_sectors() routine is nevertheless still
appropriate.
The existing code imposes a limit of SCSI_DEFAULT_MAX_SECTORS (1024)
on the values accepted by the max_sectors attribute file. There's no
reason not to accept larger values, so the limit is removed. (It
would be nice to change the file's name to max_hw_sectors, but the old
name is already a well-established API.)
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
CC: Matthew Dharm <mdharm-usb@one-eyed-alien.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Enable the SD-Card interface on multiple Option 3G sticks.
The unusual_devs.h entry is necessary because the device descriptor is
vendor-specific. That prevents usb-storage from binding to it as an interface
driver.
Signed-off-by: Jan Dumon <j.dumon@option.com>
Signed-off-by: Phil Dibowitz <phil@ipom.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Some devices must be switched to a new mode to fully use them.
A reset would make them revert to the old mode. Therefore a reset
must not be used for error handling with such devices.
Signed-off-by: Oliver Neukum <oliver@neukum.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* 'for-2.6.34' of git://git.kernel.dk/linux-2.6-block: (38 commits)
block: don't access jiffies when initialising io_context
cfq: remove 8 bytes of padding from cfq_rb_root on 64 bit builds
block: fix for "Consolidate phys_segment and hw_segment limits"
cfq-iosched: quantum check tweak
blktrace: perform cleanup after setup error
blkdev: fix merge_bvec_fn return value checks
cfq-iosched: requests "in flight" vs "in driver" clarification
cciss: Fix problem with scatter gather elements in the scsi half of the driver
cciss: eliminate unnecessary pointer use in cciss scsi code
cciss: do not use void pointer for scsi hba data
cciss: factor out scatter gather chain block mapping code
cciss: fix scatter gather chain block dma direction kludge
cciss: simplify scatter gather code
cciss: factor out scatter gather chain block allocation and freeing
cciss: detect bad alignment of scsi commands at build time
cciss: clarify command list padding calculation
cfq-iosched: rethink seeky detection for SSDs
cfq-iosched: rework seeky detection
block: remove padding from io_context on 64bit builds
block: Consolidate phys_segment and hw_segment limits
...
The five-second delay can be rather annoying, and makes the system
appear much less responsive when you connect a USB drive.
It's also not entirely clear that it is needed - the settling delay has
at least historically been an issue on some Apple iPods, for example,
and some devices have been reported to need even more than the old 5s
delay.
But before we penalize them all, let's see how bad it really is. Some
of the reasons for long delays seem to be actual historical kernel bugs
that should probably never have been papered over with a delay in the
first place (there's a Ubuntu bug report for 2.6.20 about a NULL pointer
dereference unless 'delay_use' is 8 or more, for example).
It also looks like some distros have already shipped with delay_use=0,
so the five second default may well be totally historical.
In other words: "Let's see if anybody screams".
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
