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Commit Graph

159 Commits

Author SHA1 Message Date
Greg Kroah-Hartman
19915e6234 Merge 4.1-rc7 into usb-next
This resolves a merge issue in musb_core.c and we want the fixes that
were in Linus's tree in this branch as well for testing.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-08 10:57:51 -07:00
Bart Van Assche
ba92999252 target: Minimize SCSI header #include directives
Only include SCSI initiator header files in target code that needs
these header files, namely the SCSI pass-through code and the tcm_loop
driver. Change SCSI_SENSE_BUFFERSIZE into TRANSPORT_SENSE_BUFFER in
target code because the former is intended for initiator code and the
latter for target code. With this patch the only initiator include
directives in target code that remain are as follows:

$ git grep -nHE 'include .scsi/(scsi.h|scsi_host.h|scsi_device.h|scsi_cmnd.h)' drivers/target drivers/infiniband/ulp/{isert,srpt} drivers/usb/gadget/legacy/tcm_*.[ch] drivers/{vhost,xen} include/{target,trace/events/target.h}
drivers/target/loopback/tcm_loop.c:29:#include <scsi/scsi.h>
drivers/target/loopback/tcm_loop.c:31:#include <scsi/scsi_host.h>
drivers/target/loopback/tcm_loop.c:32:#include <scsi/scsi_device.h>
drivers/target/loopback/tcm_loop.c:33:#include <scsi/scsi_cmnd.h>
drivers/target/target_core_pscsi.c:39:#include <scsi/scsi_device.h>
drivers/target/target_core_pscsi.c:40:#include <scsi/scsi_host.h>
drivers/xen/xen-scsiback.c:52:#include <scsi/scsi_host.h> /* SG_ALL */

Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-06-02 08:03:25 -07:00
Christoph Hellwig
7ad34a9367 target: target_core_configfs.h is not needed in fabric drivers
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-05-30 22:42:39 -07:00
Bart Van Assche
649ee05499 target: Move task tag into struct se_cmd + support 64-bit tags
Simplify target core and target drivers by storing the task tag
a.k.a. command identifier inside struct se_cmd.

For several transports (e.g. SRP) tags are 64 bits wide.
Hence add support for 64-bit tags.

(Fix core_tmr_abort_task conversion spec warnings - nab)
(Fix up usb-gadget to use 16-bit tags - HCH + bart)

Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Andy Grover <agrover@redhat.com>
Cc: Sagi Grimberg <sagig@mellanox.com>
Cc: <qla2xxx-upstream@qlogic.com>
Cc: Felipe Balbi <balbi@ti.com>
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Juergen Gross <jgross@suse.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-05-30 22:42:31 -07:00
Christoph Hellwig
2650d71e24 target: move transport ID handling to the core
Now that struct se_portal_group contains a protocol identifier field we can
take all the code to format an parse protocol identifiers in CDBs into common
code instead of leaving this to low-level drivers.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-05-30 22:42:30 -07:00
Christoph Hellwig
2aeeafae6b target: remove the get_fabric_proto_ident method
Now that we store the protocol identifier in the tpg structure we don't
need this method.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-05-30 22:42:30 -07:00
Christoph Hellwig
e4aae5af81 target: change core_tpg_register prototype
Remove the unneeded fabric_ptr argument, and change the type argument
to pass in a SPC protocol identifier.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-05-30 22:42:27 -07:00
Christoph Hellwig
144bc4c2a4 target: move node ACL allocation to core code
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-05-30 22:42:23 -07:00
Christoph Hellwig
c7d6a80392 target: refactor init/drop_nodeacl methods
By always allocating and adding, respectively removing and freeing
the se_node_acl structure in core code we can remove tons of repeated
code in the init_nodeacl and drop_nodeacl routines.  Additionally
this now respects the get_default_queue_depth method in this code
path as well.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-05-30 22:41:51 -07:00
Christoph Hellwig
e1750d20e6 target: make the tpg_get_default_depth method optional
All fabric drivers except for iSCSI always return 1, so implement
that as default behavior.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-05-30 22:41:50 -07:00
Christoph Hellwig
a3b679e7e4 tcm_usb: remove struct usbg_nacl
Except for the embedded struct se_node_acl none of the fields were
ever used.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-05-30 22:41:49 -07:00
Krzysztof Opasiak
c41b33c58d usb: gadget: g_ffs: Fix counting of missing_functions
Returning non-zero value from ready callback makes ffs instance
return error from writing strings and enter FFS_CLOSING state.
This means that this this function is not truly ready and
close callback will not be called. This commit fix
ffs_ready_callback() to undo all side effects of this function
in case of error.

Signed-off-by: Krzysztof Opasiak <k.opasiak@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-05-26 10:15:08 -05:00
Greg Kroah-Hartman
909eacd748 Merge 4.1-rc4 into usb-next
We want the fixes in here as well.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-05-18 15:33:09 -07:00
Greg Kroah-Hartman
1ee7eead70 USB: inode.c: move assignment out of if () block
We should not be doing assignments within an if () block
so fix up the code to not do this.

change was created using Coccinelle.

CC: Al Viro <viro@zeniv.linux.org.uk>
CC: Peter Chen <peter.chen@freescale.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
CC: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
CC: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Felipe Balbi <balbi@ti.com>
2015-05-10 16:01:11 +02:00
Arnd Bergmann
c94e289f19 usb: gadget: remove incorrect __init/__exit annotations
A recent change introduced a link error for the composite
printer gadget driver:

`printer_unbind' referenced in section `.ref.data' of drivers/built-in.o: defined in discarded section `.exit.text' of drivers/built-in.o

Evidently the unbind function should not be marked __exit here,
because it is called through a callback pointer that is not necessarily
discarded, __composite_unbind() is indeed called from the error path of
composite_bind(), which can never work for a built-in driver.

Looking at the surrounding code, I found the same problem in all other
composite gadget drivers in both the bind and unbind functions, as
well as the udc platform driver 'remove' functions. Those will break
if anyone uses the 'unbind' sysfs attribute to detach a device from a
built-in driver.

This patch removes the incorrect annotations from all the gadget
drivers.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-04-27 14:45:35 -05:00
Linus Torvalds
9ec3a646fe Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull fourth vfs update from Al Viro:
 "d_inode() annotations from David Howells (sat in for-next since before
  the beginning of merge window) + four assorted fixes"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  RCU pathwalk breakage when running into a symlink overmounting something
  fix I_DIO_WAKEUP definition
  direct-io: only inc/dec inode->i_dio_count for file systems
  fs/9p: fix readdir()
  VFS: assorted d_backing_inode() annotations
  VFS: fs/inode.c helpers: d_inode() annotations
  VFS: fs/cachefiles: d_backing_inode() annotations
  VFS: fs library helpers: d_inode() annotations
  VFS: assorted weird filesystems: d_inode() annotations
  VFS: normal filesystems (and lustre): d_inode() annotations
  VFS: security/: d_inode() annotations
  VFS: security/: d_backing_inode() annotations
  VFS: net/: d_inode() annotations
  VFS: net/unix: d_backing_inode() annotations
  VFS: kernel/: d_inode() annotations
  VFS: audit: d_backing_inode() annotations
  VFS: Fix up some ->d_inode accesses in the chelsio driver
  VFS: Cachefiles should perform fs modifications on the top layer only
  VFS: AF_UNIX sockets should call mknod on the top layer only
2015-04-26 17:22:07 -07:00
Linus Torvalds
c6668726d2 Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending
Pull SCSI target updates from Nicholas Bellinger:
 "Lots of activity in target land the last months.

  The highlights include:

   - Convert fabric drivers tree-wide to target_register_template() (hch
     + bart)

   - iser-target hardening fixes + v1.0 improvements (sagi)

   - Convert iscsi_thread_set usage to kthread.h + kill
     iscsi_target_tq.c (sagi + nab)

   - Add support for T10-PI WRITE_STRIP + READ_INSERT operation (mkp +
     sagi + nab)

   - DIF fixes for CONFIG_DEBUG_SG=y + UNMAP file emulation (akinobu +
     sagi + mkp)

   - Extended TCMU ABI v2 for future BIDI + DIF support (andy + ilias)

   - Fix COMPARE_AND_WRITE handling for NO_ALLLOC drivers (hch + nab)

  Thanks to everyone who contributed this round with new features,
  bug-reports, fixes, cleanups and improvements.

  Looking forward, it's currently shaping up to be a busy v4.2 as well"

* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending: (69 commits)
  target: Put TCMU under a new config option
  target: Version 2 of TCMU ABI
  target: fix tcm_mod_builder.py
  target/file: Fix UNMAP with DIF protection support
  target/file: Fix SG table for prot_buf initialization
  target/file: Fix BUG() when CONFIG_DEBUG_SG=y and DIF protection enabled
  target: Make core_tmr_abort_task() skip TMFs
  target/sbc: Update sbc_dif_generate pr_debug output
  target/sbc: Make internal DIF emulation honor ->prot_checks
  target/sbc: Return INVALID_CDB_FIELD if DIF + sess_prot_type disabled
  target: Ensure sess_prot_type is saved across session restart
  target/rd: Don't pass incomplete scatterlist entries to sbc_dif_verify_*
  target: Remove the unused flag SCF_ACK_KREF
  target: Fix two sparse warnings
  target: Fix COMPARE_AND_WRITE with SG_TO_MEM_NOALLOC handling
  target: simplify the target template registration API
  target: simplify target_xcopy_init_pt_lun
  target: remove the unused SCF_CMD_XCOPY_PASSTHROUGH flag
  target/rd: reduce code duplication in rd_execute_rw()
  tcm_loop: fixup tpgt string to integer conversion
  ...
2015-04-24 10:22:09 -07:00
Linus Torvalds
fa927894bb Merge branch 'for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull second vfs update from Al Viro:
 "Now that net-next went in...  Here's the next big chunk - killing
  ->aio_read() and ->aio_write().

  There'll be one more pile today (direct_IO changes and
  generic_write_checks() cleanups/fixes), but I'd prefer to keep that
  one separate"

* 'for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (37 commits)
  ->aio_read and ->aio_write removed
  pcm: another weird API abuse
  infinibad: weird APIs switched to ->write_iter()
  kill do_sync_read/do_sync_write
  fuse: use iov_iter_get_pages() for non-splice path
  fuse: switch to ->read_iter/->write_iter
  switch drivers/char/mem.c to ->read_iter/->write_iter
  make new_sync_{read,write}() static
  coredump: accept any write method
  switch /dev/loop to vfs_iter_write()
  serial2002: switch to __vfs_read/__vfs_write
  ashmem: use __vfs_read()
  export __vfs_read()
  autofs: switch to __vfs_write()
  new helper: __vfs_write()
  switch hugetlbfs to ->read_iter()
  coda: switch to ->read_iter/->write_iter
  ncpfs: switch to ->read_iter/->write_iter
  net/9p: remove (now-)unused helpers
  p9_client_attach(): set fid->uid correctly
  ...
2015-04-15 13:22:56 -07:00
David Howells
75c3cfa855 VFS: assorted weird filesystems: d_inode() annotations
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-04-15 15:06:58 -04:00
Linus Torvalds
ca2ec32658 Merge branch 'for-linus-1' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull vfs update from Al Viro:
 "Part one:

   - struct filename-related cleanups

   - saner iov_iter_init() replacements (and switching the syscalls to
     use of those)

   - ntfs switch to ->write_iter() (Anton)

   - aio cleanups and splitting iocb into common and async parts
     (Christoph)

   - assorted fixes (me, bfields, Andrew Elble)

  There's a lot more, including the completion of switchover to
  ->{read,write}_iter(), d_inode/d_backing_inode annotations, f_flags
  race fixes, etc, but that goes after #for-davem merge.  David has
  pulled it, and once it's in I'll send the next vfs pull request"

* 'for-linus-1' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (35 commits)
  sg_start_req(): use import_iovec()
  sg_start_req(): make sure that there's not too many elements in iovec
  blk_rq_map_user(): use import_single_range()
  sg_io(): use import_iovec()
  process_vm_access: switch to {compat_,}import_iovec()
  switch keyctl_instantiate_key_common() to iov_iter
  switch {compat_,}do_readv_writev() to {compat_,}import_iovec()
  aio_setup_vectored_rw(): switch to {compat_,}import_iovec()
  vmsplice_to_user(): switch to import_iovec()
  kill aio_setup_single_vector()
  aio: simplify arguments of aio_setup_..._rw()
  aio: lift iov_iter_init() into aio_setup_..._rw()
  lift iov_iter into {compat_,}do_readv_writev()
  NFS: fix BUG() crash in notify_change() with patch to chown_common()
  dcache: return -ESTALE not -EBUSY on distributed fs race
  NTFS: Version 2.1.32 - Update file write from aio_write to write_iter.
  VFS: Add iov_iter_fault_in_multipages_readable()
  drop bogus check in file_open_root()
  switch security_inode_getattr() to struct path *
  constify tomoyo_realpath_from_path()
  ...
2015-04-14 15:31:03 -07:00
Christoph Hellwig
9ac8928e6a target: simplify the target template registration API
Instead of calling target_fabric_configfs_init() +
target_fabric_configfs_register() / target_fabric_configfs_deregister()
target_fabric_configfs_free() from every target driver, rewrite the API
so that we have simple register/unregister functions that operate on
a const operations vector.

This patch also fixes a memory leak in several target drivers. Several
target drivers namely called target_fabric_configfs_deregister()
without calling target_fabric_configfs_free().

A large part of this patch is based on earlier changes from
Bart Van Assche <bart.vanassche@sandisk.com>.

(v2: Add a new TF_CIT_SETUP_DRV macro so that the core configfs code
can declare attributes as either core only or for drivers)

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-04-14 12:28:41 -07:00
Al Viro
5d5d568975 make new_sync_{read,write}() static
All places outside of core VFS that checked ->read and ->write for being NULL or
called the methods directly are gone now, so NULL {read,write} with non-NULL
{read,write}_iter will do the right thing in all cases.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-04-11 22:29:40 -04:00
Al Viro
c0fec3a98b Merge branch 'iocb' into for-next 2015-04-11 22:24:41 -04:00
Christoph Hellwig
e2e40f2c1e fs: move struct kiocb to fs.h
struct kiocb now is a generic I/O container, so move it to fs.h.
Also do a #include diet for aio.h while we're at it.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-03-25 20:28:11 -04:00
Greg Kroah-Hartman
1c41a9570a usb: patches for v4.1 merge window
As usual, a big pile of commits. This time a total
 of 111 non-merge commits.
 
 Other than the usual set of cleanups and non-critical
 fixes, we have some interesting work for AM335x's MUSB
 babble recovery. Now that takes a lot less time and we
 don't have to Reset MUSB all the time.
 
 The printer gadget has been converted to configfs interface
 and the atmel udc has learned suspend/resume with wakeup.
 
 Signed-off-by: Felipe Balbi <balbi@ti.com>
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Merge tag 'usb-for-v4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-next

Felipe writes:

usb: patches for v4.1 merge window

As usual, a big pile of commits. This time a total
of 111 non-merge commits.

Other than the usual set of cleanups and non-critical
fixes, we have some interesting work for AM335x's MUSB
babble recovery. Now that takes a lot less time and we
don't have to Reset MUSB all the time.

The printer gadget has been converted to configfs interface
and the atmel udc has learned suspend/resume with wakeup.

Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-03-24 22:57:49 +01:00
Linus Torvalds
cedd5f659e USB / PHY driver fixes for 4.0-rc5
Here's a number of USB and PHY driver fixes for 4.0-rc5.  Largest thing
 here is a revert of a gadget function driver patch that removes 500
 lines of code.  Other than that, it's a number of reported bugs fixes
 and new quirk/id entries.
 
 All have been in linux-next for a while.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-4.0-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB / PHY driver fixes from Greg KH:
 "Here's a number of USB and PHY driver fixes for 4.0-rc5.

  The largest thing here is a revert of a gadget function driver patch
  that removes 500 lines of code.  Other than that, it's a number of
  reported bugs fixes and new quirk/id entries.

  All have been in linux-next for a while"

* tag 'usb-4.0-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (33 commits)
  usb: common: otg-fsm: only signal connect after switching to peripheral
  uas: Add US_FL_NO_ATA_1X for Initio Corporation controllers / devices
  USB: ehci-atmel: rework clk handling
  MAINTAINERS: add entry for USB OTG FSM
  usb: chipidea: otg: add a_alt_hnp_support response for B device
  phy: omap-usb2: Fix missing clk_prepare call when using old dt name
  phy: ti/omap: Fix modalias
  phy: core: Fixup return value of phy_exit when !pm_runtime_enabled
  phy: miphy28lp: Convert to devm_kcalloc and fix wrong sizof
  phy: miphy365x: Convert to devm_kcalloc and fix wrong sizeof
  phy: twl4030-usb: Remove redundant assignment for twl->linkstat
  phy: exynos5-usbdrd: Fix off-by-one valid value checking for args->args[0]
  phy: Find the right match in devm_phy_destroy()
  phy: rockchip-usb: Fixup rockchip_usb_phy_power_on failure path
  phy: ti-pipe3: Simplify ti_pipe3_dpll_wait_lock implementation
  phy: samsung-usb2: Remove NULL terminating entry from phys array
  phy: hix5hd2-sata: Check return value of platform_get_resource
  phy: exynos-dp-video: Kill exynos_dp_video_phy_pwr_isol function
  Revert "usb: gadget: zero: Add support for interrupt EP"
  Revert "xhci: Clear the host side toggle manually when endpoint is 'soft reset'"
  ...
2015-03-22 11:33:55 -07:00
Linus Torvalds
e477f3e013 Merge git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending
Pull SCSI target fixes from Nicholas Bellinger:
 "Here are current target-pending fixes for v4.0-rc5 code that have made
  their way into the queue over the last weeks.

  The fixes this round include:

   - Fix long-standing iser-target logout bug related to early
     conn_logout_comp completion, resulting in iscsi_conn use-after-tree
     OOpsen.  (Sagi + nab)

   - Fix long-standing tcm_fc bug in ft_invl_hw_context() failure
     handing for DDP hw offload.  (DanC)

   - Fix incorrect use of unprotected __transport_register_session() in
     tcm_qla2xxx + other single local se_node_acl fabrics.  (Bart)

   - Fix reference leak in target_submit_cmd() -> target_get_sess_cmd()
     for ack_kref=1 failure path.  (Bart)

   - Fix pSCSI backend ->get_device_type() statistics OOPs with
     un-configured device.  (Olaf + nab)

   - Fix virtual LUN=0 target_configure_device failure OOPs at modprobe
     time.  (Claudio + nab)

   - Fix FUA write false positive failure regression in v4.0-rc1 code.
     (Christophe Vu-Brugier + HCH)"

* git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending:
  target: do not reject FUA CDBs when write cache is enabled but emulate_write_cache is 0
  target: Fix virtual LUN=0 target_configure_device failure OOPs
  target/pscsi: Fix NULL pointer dereference in get_device_type
  tcm_fc: missing curly braces in ft_invl_hw_context()
  target: Fix reference leak in target_get_sess_cmd() error path
  loop/usb/vhost-scsi/xen-scsiback: Fix use of __transport_register_session
  tcm_qla2xxx: Fix incorrect use of __transport_register_session
  iscsi-target: Avoid early conn_logout_comp for iser connections
  Revert "iscsi-target: Avoid IN_LOGOUT failure case for iser-target"
  target: Disallow changing of WRITE cache/FUA attrs after export
2015-03-21 11:24:38 -07:00
Bart Van Assche
2f450cc1fb loop/usb/vhost-scsi/xen-scsiback: Fix use of __transport_register_session
This patch changes loopback, usb-gadget, vhost-scsi and xen-scsiback
fabric code to invoke transport_register_session() instead of the
unprotected flavour, to ensure se_tpg->session_lock is taken when
adding new session list nodes to se_tpg->tpg_sess_list.

Note that since these four fabric drivers already hold their own
internal TPG mutexes when accessing se_tpg->tpg_sess_list, and
consist of a single se_session created through configfs attribute
access, no list corruption can currently occur.

So for correctness sake, go ahead and use the se_tpg->session_lock
protected version for these four fabric drivers.

Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-03-19 23:15:14 -07:00
Linus Torvalds
f788baadbd Merge branch 'gadget' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull gadgetfs fixes from Al Viro:
 "Assorted fixes around AIO on gadgetfs: leaks, use-after-free, troubles
  caused by ->f_op flipping"

* 'gadget' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  gadgetfs: really get rid of switching ->f_op
  gadgetfs: get rid of flipping ->f_op in ep_config()
  gadget: switch ep_io_operations to ->read_iter/->write_iter
  gadgetfs: use-after-free in ->aio_read()
  gadget/function/f_fs.c: switch to ->{read,write}_iter()
  gadget/function/f_fs.c: use put iov_iter into io_data
  gadget/function/f_fs.c: close leaks
  move iov_iter.c from mm/ to lib/
  new helper: dup_iter()
2015-03-13 10:55:32 -07:00
Christoph Hellwig
04b2fa9f8f fs: split generic and aio kiocb
Most callers in the kernel want to perform synchronous file I/O, but
still have to bloat the stack with a full struct kiocb.  Split out
the parts needed in filesystem code from those in the aio code, and
only allocate those needed to pass down argument on the stack.  The
aio code embedds the generic iocb in the one it allocates and can
easily get back to it by using container_of.

Also add a ->ki_complete method to struct kiocb, this is used to call
into the aio code and thus removes the dependency on aio for filesystems
impementing asynchronous operations.  It will also allow other callers
to substitute their own completion callback.

We also add a new ->ki_flags field to work around the nasty layering
violation recently introduced in commit 5e33f6 ("usb: gadget: ffs: add
eventfd notification about ffs events").

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-03-13 12:10:27 -04:00
Felipe Balbi
2c24780479 Revert "usb: gadget: zero: Add support for interrupt EP"
This reverts commit ef11982dd7.

That commit creates a problem for some UDCs (at least musb)
where it allocates an endpoints with a 64-byte FIFO, but later
tries to use that same FIFO for 1024-byte packets.

Before implementing this, composite framework needs to be
modified so we only allocate endpoints after we know negotiated
speed, however that needs quite a bit of extra work.

Cc: <stable@vger.kernel.org> # v3.18+
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-03-11 10:00:05 -05:00
Andrzej Pietrasiewicz
a2a8e48a94 usb: gadget: printer: use module_usb_composite_driver helper macro
Substitute some boilerplate code with a dedicated macro.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-03-10 15:33:41 -05:00
Andrzej Pietrasiewicz
69504f808d usb: gadget: printer: convert to new interface of f_printer
The goal is to remove the old function interface, so its (only) user
must be converted to the new interface.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-03-10 15:33:40 -05:00
Andrzej Pietrasiewicz
b26394bd56 usb: gadget: f_printer: convert to new function interface with backward compatibility
In order to add configfs support, a usb function must be converted to use
the new interface. This patch converts the function to the new interface
and provides backward compatiblity layer, which can be removed after
all its users are converted to use the new interface.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-03-10 15:33:40 -05:00
Andrzej Pietrasiewicz
b185f01a9a usb: gadget: printer: factor out f_printer
The legacy printer gadget now contains both a reusable printer function
and legacy gadget proper implementations interwoven, but logically
separate. This patch factors out a reusable f_printer.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-03-10 15:33:40 -05:00
Andrzej Pietrasiewicz
6dd8c2e695 usb: gadget: printer: allocate printer_dev instances dynamically
With all the obstacles removed it is possible to allow more than one
instance of the printer function. Since the function requires allocating
character device region, a maximum number of allowed instances is defined.
Such an approach is used in f_acm and in f_hid.
With multiple instances it does not make sense to depend on a
lock_printer_io member of a dynamically allocated (and destroyed) struct
printer_dev to clean up after all instances of the printer function.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-03-10 15:33:39 -05:00
Andrzej Pietrasiewicz
636bc0ed27 usb: gadget: printer: add req_match for printer function
Verify that a given usb_ctrlrequest is meant for printer function.
The following parts of the request are tested:

- bmRequestType:Data transfer direction
- bmRequestType:Type
- bmRequestType:Recipient
- bRequest
- wValue for bRequest 1 and 2
- wLength

Additionally, the request is considered meant for this function
iff the decoded interface number matches dev->interface.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-03-10 15:33:39 -05:00
Andrzej Pietrasiewicz
d7239f4c6d usb: gadget: printer: name class specific requests
Avoid using magic numbers.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-03-10 15:33:39 -05:00
Andrzej Pietrasiewicz
143d53e10e usb: gadget: printer: add container_of helper for printer_dev
5 uses of container_of() in the same context justify wrapping it
in a static inline function.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-03-10 15:33:38 -05:00
Andrzej Pietrasiewicz
8fe20f661f usb: gadget: printer: don't access file global usb_printer_gadget in function's code
The printer_dev can be recovered from printer_func_unbind() function's
parameters.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-03-10 15:33:38 -05:00
Andrzej Pietrasiewicz
dec81cf1dc usb: gadget: printer: eliminate file global printer_mutex
The mutex is a legacy after semi-automatic Big Kernel Lock removal.
printer_open() does its own locking, so no need to duplicate it.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-03-10 15:33:38 -05:00
Andrzej Pietrasiewicz
a844715d2f usb: gadget: printer: call gprinter_setup() from gadget's bind
Call gprinter_setup() from gadget's bind instead of module's init.
Call gprinter_cleaup() corerspondingly. This detaches printer function's
logic from legacy printer gadget's implementation.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-03-10 15:33:37 -05:00
Andrzej Pietrasiewicz
d82cd82edb usb: gadget: printer: add setup and cleanup functions
Factor out gprinter_setup() and gprinter_cleanup() so that it is
easy to change the place they are called from.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-03-10 15:33:37 -05:00
Andrzej Pietrasiewicz
5a84e6f608 usb: gadget: printer: don't access file global pnp_string in function's code
In order to factor out a reusable f_printer, the function's code should
not use file global variables related to legacy printer gadget's
implementation.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-03-10 15:33:37 -05:00
Andrzej Pietrasiewicz
085617a1eb usb: gadget: printer: define pnp string buffer length
Avoid using magic numbers.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-03-10 15:33:37 -05:00
Andrzej Pietrasiewicz
991cd26249 usb: gadget: printer: move function-related unbind code to function's unbind
In order to factor out a reusable f_printer.c, the code related to the
function should be placed in functions related to the function.

printer_cfg_unbind() becomes empty, so it is removed.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-03-10 15:33:36 -05:00
Andrzej Pietrasiewicz
cee5cbff8d usb: gadget: printer: call usb_add_function() last
Conversion to the new function interface requires splitting a
<something>_bind_config() function into two parts: allocation of
container_of struct usb_function and invocation of usb_add_function().
This patch moves the latter to the end of the f_printer_bind_config()
in order to enable conversion to the new interface.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-03-10 15:33:36 -05:00
Andrzej Pietrasiewicz
4504b5a0b2 usb: gadget: printer: move function-related bind code to function's bind
In order to factor out a reusable f_printer.c, the code related to the
function should be placed in functions related to the function.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-03-10 15:33:36 -05:00
Andrzej Pietrasiewicz
ae2dd0de57 usb: gadget: printer: standardize printer_do_config
Follow the convention of distributing source code between
<something>_do_config() and <something>_bind_config().

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-03-10 15:33:35 -05:00
Andrzej Pietrasiewicz
406be2ccba usb: gadget: printer: follow the naming convention for usb_add_config callback
Legacy gadgets, before converting them to the new function framework,
used to use the name <something>_do_config() for usb_add_config()'s
callback.

This patch changes the name so that it is easier to follow
the convention.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-03-10 15:33:35 -05:00
Andrzej Pietrasiewicz
44eccced2b usb: gadget: printer: eliminate pdev member of struct printer_dev
The pdev member of struct printer_dev is not used outside
printer_bind_config(), so it can just as well be a local variable there.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-03-10 15:33:35 -05:00
Andrzej Pietrasiewicz
44b3165259 usb: gadget: printer: add missing error handling
If cdev_add() in printer_bind_config() fails, care is taken to
reverse the effects of initializations completed until the fail
happens. But if printer_req_alloc() fails, it is just one of the
two lists that is cleaned up while the effects of cdev_add()
and device_create() are not reverted.

This patch changes error handling so that at least as much cleanup is done
as when a failure happens before printer_req_alloc() invocations.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-03-10 15:33:35 -05:00
Andrzej Pietrasiewicz
f5bda0034f usb: gadget: printer: revert usb_add_function() effect in error recovery
Whenever the "goto fail" branch is taken, the effect of usb_add_function()
should be reverted.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-03-10 15:33:34 -05:00
Andrzej Pietrasiewicz
c69b818694 usb: gadget: printer: eliminate random pointer dereference
struct printer_dev contains 3 list heads: tx_reqs, rx_reqs and rx_buffers.
There is just one instance of this structure in the driver and it is
file static, and as such initialized with all zeros.

If device_create() or cdev_add() fails then "goto fail" branch is taken,
which results in printer_cfg_unbind() call. The latter checks if
tx_reqs, rx_reqs and rx_buffers lists are empty. The check for emptiness
is in fact a check whether the "next" member of struct list_head points
to the head of the list. But the heads of the lists in question have
not been initialized yet and, as mentioned above, contain all zeros,
so list_empty() returns false and respective "while" loop body starts
executing. Here, container_of() just subtracts the offset of a struct
usb_request member from an address of this same member, which results in
a value somewhere near 0 or 0xfff...ff. And the argument to list_del()
dereferences such a pointer which causes a disaster.

This patch moves respective INIT_LIST_HEAD() invocations to a point before
"goto fail" branch can be taken.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-03-10 15:33:34 -05:00
Andrzej Pietrasiewicz
050f571264 usb: gadget: printer: remove unused and empty printer_unbind
The unbind() method is optional is usb_composite_driver.
In this particular driver the method does nothing so it can be removed.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-03-10 15:33:34 -05:00
Andrzej Pietrasiewicz
eb132ccbde usb: gadget: printer: enqueue printer's response for setup request
Function-specific setup requests should be handled in such a way, that
apart from filling in the data buffer, the requests are also actually
enqueued: if function-specific setup is called from composte_setup(),
the "usb_ep_queue()" block of code in composite_setup() is skipped.

The printer function lacks this part and it results in e.g. get device id
requests failing: the host expects some response, the device prepares it
but does not equeue it for sending to the host, so the host finally asserts
timeout.

This patch adds enqueueing the prepared responses.

Cc: <stable@vger.kernel.org> # v3.4+
Fixes: 2e87edf492: "usb: gadget: make g_printer use composite"
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-03-10 15:33:34 -05:00
Alan Stern
96b62a5719 gadgetfs: really get rid of switching ->f_op
... for ep0 as well

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-03-08 15:19:03 -04:00
Al Viro
d4461a602c gadgetfs: get rid of flipping ->f_op in ep_config()
Final methods start with get_ready_ep(), which will fail unless we have
->state == STATE_EP_ENABLED.  So they'd be failing just fine until that
first write() anyway.  Let's do the following:
	* get_ready_ep() gets a new argument - true when called from
ep_write_iter(), false otherwise.
	* make it quiet when it finds STATE_EP_READY (no printk, that is;
the case won't be impossible after that change).
	* when that new argument is true, treat STATE_EP_READY the same
way as STATE_EP_ENABLED (i.e. return zero and do not unlock).
	* in ep_write_iter(), after success of get_ready_ep() turn
	if (!usb_endpoint_dir_in(&epdata->desc)) {
into
	if (epdata->state == STATE_EP_ENABLED &&
	    !usb_endpoint_dir_in(&epdata->desc)) {
- that logics only applies after config.
	* have ep_config() take kernel-side buffer (i.e. use memcpy()
instead of copy_from_user() in there) and in the "let's call ep_io or
ep_aio" (again, in ep_write_iter()) add "... or ep_config() in case it's
not configured yet"

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-03-08 13:33:50 -04:00
Lad, Prabhakar
2b87cd24c3 usb: gadget: gadgetfs: fix sparse warnings
this patch fixes following sparse warnings:

g_ffs.c:136:3: warning: symbol 'gfs_configurations' was not declared. Should it be static?
g_ffs.c:281:16: warning: Using plain integer as NULL pointer

Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-02-23 09:23:20 -06:00
Linus Torvalds
b11a278397 Merge branch 'kconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild
Pull kconfig updates from Michal Marek:
 "Yann E Morin was supposed to take over kconfig maintainership, but
  this hasn't happened.  So I'm sending a few kconfig patches that I
  collected:

   - Fix for missing va_end in kconfig
   - merge_config.sh displays used if given too few arguments
   - s/boolean/bool/ in Kconfig files for consistency, with the plan to
     only support bool in the future"

* 'kconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
  kconfig: use va_end to match corresponding va_start
  merge_config.sh: Display usage if given too few arguments
  kconfig: use bool instead of boolean for type definition attributes
2015-02-19 10:36:45 -08:00
Al Viro
7fe3976e0f gadget: switch ep_io_operations to ->read_iter/->write_iter
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-02-17 22:23:33 -05:00
Al Viro
f01d35a15f gadgetfs: use-after-free in ->aio_read()
AIO_PREAD requests call ->aio_read() with iovec on caller's stack, so if
we are going to access it asynchronously, we'd better get ourselves
a copy - the one on kernel stack of aio_run_iocb() won't be there
anymore.  function/f_fs.c take care of doing that, legacy/inode.c
doesn't...

Cc: stable@vger.kernel.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-02-17 22:23:32 -05:00
Dan Carpenter
42d6cfa0ca usb: gadget: gadgetfs: fix an oops in ep_write()
We try to free an ERR_PTR on this error path.

Fixes: b44be2462d ('usb: gadget: gadgetfs: Free memory allocated by memdup_user()')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-01-09 18:15:11 -06:00
Christoph Jaeger
6341e62b21 kconfig: use bool instead of boolean for type definition attributes
Support for keyword 'boolean' will be dropped later on.

No functional change.

Reference: http://lkml.kernel.org/r/cover.1418003065.git.cj@linux.com
Signed-off-by: Christoph Jaeger <cj@linux.com>
Signed-off-by: Michal Marek <mmarek@suse.cz>
2015-01-07 13:08:04 +01:00
Mario Schuknecht
b44be2462d usb: gadget: gadgetfs: Free memory allocated by memdup_user()
Commit 3b74c73f8d switched over to memdup_user()
in ep_write() function and removed kfree (kbuf).
memdup_user() function allocates memory which is never freed.

Fixes: 3b74c73 (usb: gadget: inode: switch over to memdup_user())
Cc: <stable@vger.kernel.org> # v3.15+
Signed-off-by: Mario Schuknecht <mario.schuknecht@dresearch-fe.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-12-22 10:37:15 -06:00
James Bottomley
e617457691 Merge remote-tracking branch 'scsi-queue/drivers-for-3.19' into for-linus 2014-12-18 05:56:29 -08:00
Linus Torvalds
e6b5be2be4 Driver core patches for 3.19-rc1
Here's the set of driver core patches for 3.19-rc1.
 
 They are dominated by the removal of the .owner field in platform
 drivers.  They touch a lot of files, but they are "simple" changes, just
 removing a line in a structure.
 
 Other than that, a few minor driver core and debugfs changes.  There are
 some ath9k patches coming in through this tree that have been acked by
 the wireless maintainers as they relied on the debugfs changes.
 
 Everything has been in linux-next for a while.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull driver core update from Greg KH:
 "Here's the set of driver core patches for 3.19-rc1.

  They are dominated by the removal of the .owner field in platform
  drivers.  They touch a lot of files, but they are "simple" changes,
  just removing a line in a structure.

  Other than that, a few minor driver core and debugfs changes.  There
  are some ath9k patches coming in through this tree that have been
  acked by the wireless maintainers as they relied on the debugfs
  changes.

  Everything has been in linux-next for a while"

* tag 'driver-core-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (324 commits)
  Revert "ath: ath9k: use debugfs_create_devm_seqfile() helper for seq_file entries"
  fs: debugfs: add forward declaration for struct device type
  firmware class: Deletion of an unnecessary check before the function call "vunmap"
  firmware loader: fix hung task warning dump
  devcoredump: provide a one-way disable function
  device: Add dev_<level>_once variants
  ath: ath9k: use debugfs_create_devm_seqfile() helper for seq_file entries
  ath: use seq_file api for ath9k debugfs files
  debugfs: add helper function to create device related seq_file
  drivers/base: cacheinfo: remove noisy error boot message
  Revert "core: platform: add warning if driver has no owner"
  drivers: base: support cpu cache information interface to userspace via sysfs
  drivers: base: add cpu_device_create to support per-cpu devices
  topology: replace custom attribute macros with standard DEVICE_ATTR*
  cpumask: factor out show_cpumap into separate helper function
  driver core: Fix unbalanced device reference in drivers_probe
  driver core: fix race with userland in device_add()
  sysfs/kernfs: make read requests on pre-alloc files use the buffer.
  sysfs/kernfs: allow attributes to request write buffer be pre-allocated.
  fs: sysfs: return EGBIG on write if offset is larger than file size
  ...
2014-12-14 16:10:09 -08:00
Linus Torvalds
e7cf773d43 USB patches for 3.19-rc1
Here's the big set of USB and PHY patches for 3.19-rc1.
 
 The normal churn in the USB gadget area is in here, as well as xhci and
 other individual USB driver updates.  The PHY tree is also in here, as
 there were dependancies on the USB tree.
 
 All of these have been in linux-next.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB updates from Greg KH:
 "Here's the big set of USB and PHY patches for 3.19-rc1.

  The normal churn in the USB gadget area is in here, as well as xhci
  and other individual USB driver updates.  The PHY tree is also in
  here, as there were dependancies on the USB tree.

  All of these have been in linux-next"

* tag 'usb-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (351 commits)
  arm: omap3: twl: remove usb phy init data
  usbip: fix error handling in stub_probe()
  usb: gadget: udc: missing curly braces
  USB: mos7720: delete some unneeded code
  wusb: replace memset by memzero_explicit
  usbip: remove unneeded structure
  usb: xhci: fix comment for PORT_DEV_REMOVE
  xhci: don't use the same variable for stopped and halted rings current TD
  xhci: clear extra bits from slot context when setting max exit latency
  xhci: cleanup finish_td function
  USB: adutux: NULL dereferences on disconnect
  usb: chipidea: fix platform_no_drv_owner.cocci warnings
  usb: chipidea: Fixed a few typos in comments
  Documentation: bindings: add doc for the USB2 ChipIdea USB driver
  usb: chipidea: add a usb2 driver for ci13xxx
  usb: chipidea: fix phy handling
  usb: chipidea: remove duplicate dev_set_drvdata for host_start
  usb: chipidea: parameter 'mode' isn't needed for hw_device_reset
  usb: chipidea: add controller reset API
  usb: chipidea: remove flag CI_HDRC_REQUIRE_TRANSCEIVER
  ...
2014-12-14 14:57:16 -08:00
Linus Torvalds
a7cb7bb664 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
Pull trivial tree update from Jiri Kosina:
 "Usual stuff: documentation updates, printk() fixes, etc"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (24 commits)
  intel_ips: fix a type in error message
  cpufreq: cpufreq-dt: Move newline to end of error message
  ps3rom: fix error return code
  treewide: fix typo in printk and Kconfig
  ARM: dts: bcm63138: change "interupts" to "interrupts"
  Replace mentions of "list_struct" to "list_head"
  kernel: trace: fix printk message
  scsi: mpt2sas: fix ioctl in comment
  zbud, zswap: change module author email
  clocksource: Fix 'clcoksource' typo in comment
  arm: fix wording of "Crotex" in CONFIG_ARCH_EXYNOS3 help
  gpio: msm-v1: make boolean argument more obvious
  usb: Fix typo in usb-serial-simple.c
  PCI: Fix comment typo 'COMFIG_PM_OPS'
  powerpc: Fix comment typo 'CONIFG_8xx'
  powerpc: Fix comment typos 'CONFiG_ALTIVEC'
  clk: st: Spelling s/stucture/structure/
  isci: Spelling s/stucture/structure/
  usb: gadget: zero: Spelling s/infrastucture/infrastructure/
  treewide: Fix company name in module descriptions
  ...
2014-12-12 10:08:06 -08:00
Christoph Hellwig
68d81f4004 scsi: remove MSG_*_TAG defines
For SPI drivers use the message definitions from scsi.h, and for target
drivers introduce a new TCM_*_TAG namespace.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com
2014-12-04 09:58:33 +01:00
Hannes Reinecke
eb846d9f14 scsi: rename SERVICE_ACTION_IN to SERVICE_ACTION_IN_16
SPC-3 defines SERVICE ACTION IN(12) and SERVICE ACTION IN(16).
So rename SERVICE_ACTION_IN to SERVICE_ACTION_IN_16 to be
consistent with SPC and to allow for better distinction.

Signed-off-by: Hannes Reinecke <hare@suse.de>
Tested-by: Robert Elliott <elliott@hp.com>
Reviewed-by: Robert Elliott <elliott@hp.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2014-11-24 20:01:40 +01:00
kbuild test robot
ef24d749f2 usb: gadget: ss_ep_in_comp_desc can be static
drivers/usb/gadget/legacy/printer.c:222:34: sparse: symbol 'ss_ep_in_comp_desc' was not declared. Should it be static?
drivers/usb/gadget/legacy/printer.c:234:34: sparse: symbol 'ss_ep_out_comp_desc' was not declared. Should it be static?

Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-11-24 08:33:23 -06:00
Jorge Ramirez-Ortiz
74df41b40a usb: gadget: add USB3 support to the printer driver
Add SS descriptors to support the capabilities provided by USB3 controller
drivers; unit tests run using a PLX 3380 [max transfer speed measured of 1Gbps]

This driver shall fallback to lower operating modes when the higher ones are
not available.

Signed-off-by: Jorge Ramirez-Ortiz <jorge.ramirez-ortiz@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-11-20 13:47:08 -06:00
Jiri Kosina
a02001086b Merge Linus' tree to be be to apply submitted patches to newer code than
current trivial.git base
2014-11-20 14:42:02 +01:00
Fengguang Wu
f509fee81f usb: gadget: midi: f_midi_alloc() can be static
drivers/usb/gadget/function/f_midi.c:1072:21: sparse: symbol 'f_midi_alloc' was not declared. Should it be static?
drivers/usb/gadget/legacy/gmidi.c:118:30: sparse: symbol 'fi_midi' was not declared. Should it be static?
drivers/usb/gadget/legacy/gmidi.c:119:21: sparse: symbol 'f_midi' was not declared. Should it be static?

Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-11-12 09:01:03 -06:00
Kyösti Mälkki
6876d58f2f usb: gadget: dbgp: Fix endpoint config after USB disconnect
SET_FEATURE request with DEBUG_MODE only worked the first time after module
initialisation. Per the USB 2.0 debug device specification, said request
is to be treated as if it were a SET_CONFIGURATION request, i.e. endpoint
must be re-configured.

As configure_endpoints() may now get called multiple times, move it outside
__init and move serial_alloc_tty() call into __init.

Code has assumption that endpoint mapping remains unchanged with consecutive
calls of configure_endpoints().

Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-11-10 17:19:34 -06:00
Andrzej Pietrasiewicz
4bc8a33f24 usb: gadget: hid: convert to new interface of f_hid
Use the new f_hid interface in order for the old to be removed.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-11-06 16:18:18 -06:00
Andrzej Pietrasiewicz
cb38253605 usb: gadget: f_hid: convert to new function interface with backward compatibility
Converting hid to the new function interface requires converting
the USB hid's function code and its users.

This patch converts the f_hid.c to the new function interface.

The file can now be compiled into a separate usb_f_hid.ko module.

The old function interface is provided by means of a preprocessor
conditional directives. After all users are converted, the old interface
can be removed.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-11-06 16:18:18 -06:00
Andrzej Pietrasiewicz
00896f66f5 usb: gadget: hid: mirror init operations in module cleanup
So far platform driver has been unregistered first,
so just after that the usb composite is still available,
but there is no hid data any more.

Reverse the order so that first the usb composite becomes
unavailable and second the hid data goes away.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-11-06 16:18:17 -06:00
Andrzej Pietrasiewicz
32522a51c7 usb: gadget: midi: convert to new interface of f_midi
Use the new f_midi interface so that the old can be removed.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-11-05 13:36:13 -06:00
Andrzej Pietrasiewicz
b85e9de9e8 usb: gadget: f_midi: convert to new function interface with backward compatibility
Converting midi to the new function interface requires converting
the USB midi's function code and its users.

This patch converts the f_midi.c to the new function interface.
The file can now be compiled into a separate usb_f_midi.ko module.

The old function interface is provided by means of a preprocessor
conditional directives. After all users are converted, the old interface
can be removed.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-11-05 13:36:09 -06:00
Geert Uytterhoeven
b8bcf32af9 usb: gadget: zero: Spelling s/infrastucture/infrastructure/
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: Felipe Balbi <balbi@ti.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2014-10-29 14:38:13 +01:00
Wolfram Sang
e55a013716 usb: gadget: legacy: drop owner assignment from platform_drivers
A platform_driver does not need to set an owner, it will be populated by the
driver core.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2014-10-20 16:21:48 +02:00
Linus Torvalds
77c688ac87 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull vfs updates from Al Viro:
 "The big thing in this pile is Eric's unmount-on-rmdir series; we
  finally have everything we need for that.  The final piece of prereqs
  is delayed mntput() - now filesystem shutdown always happens on
  shallow stack.

  Other than that, we have several new primitives for iov_iter (Matt
  Wilcox, culled from his XIP-related series) pushing the conversion to
  ->read_iter()/ ->write_iter() a bit more, a bunch of fs/dcache.c
  cleanups and fixes (including the external name refcounting, which
  gives consistent behaviour of d_move() wrt procfs symlinks for long
  and short names alike) and assorted cleanups and fixes all over the
  place.

  This is just the first pile; there's a lot of stuff from various
  people that ought to go in this window.  Starting with
  unionmount/overlayfs mess...  ;-/"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (60 commits)
  fs/file_table.c: Update alloc_file() comment
  vfs: Deduplicate code shared by xattr system calls operating on paths
  reiserfs: remove pointless forward declaration of struct nameidata
  don't need that forward declaration of struct nameidata in dcache.h anymore
  take dname_external() into fs/dcache.c
  let path_init() failures treated the same way as subsequent link_path_walk()
  fix misuses of f_count() in ppp and netlink
  ncpfs: use list_for_each_entry() for d_subdirs walk
  vfs: move getname() from callers to do_mount()
  gfs2_atomic_open(): skip lookups on hashed dentry
  [infiniband] remove pointless assignments
  gadgetfs: saner API for gadgetfs_create_file()
  f_fs: saner API for ffs_sb_create_file()
  jfs: don't hash direct inode
  [s390] remove pointless assignment of ->f_op in vmlogrdr ->open()
  ecryptfs: ->f_op is never NULL
  android: ->f_op is never NULL
  nouveau: __iomem misannotations
  missing annotation in fs/file.c
  fs: namespace: suppress 'may be used uninitialized' warnings
  ...
2014-10-13 11:28:42 +02:00
Al Viro
fb6c3225b4 gadgetfs: saner API for gadgetfs_create_file()
return dentry, not inode.  dev->inode is never used by anything,
don't bother with storing it.

Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-10-09 02:39:14 -04:00
Peter Chen
e45cfa2051 usb: gadget: dbgp: add reset API at usb_gadget_driver
Add reset API at usb_gadget_driver, it calls disconnect handler currently,
but may do different things in future.

Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-09-09 10:00:15 -05:00
Peter Chen
0eba4550fc usb: gadget: gadgetfs: add reset API at usb_gadget_driver
Add reset API at usb_gadget_driver, it calls disconnect handler currently,
but may do different things in future.

Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-09-09 10:00:06 -05:00
Andrzej Pietrasiewicz
c913881ec6 usb: gadget: webcam: convert webcam to new interface of f_uvc
Use the new function interface of f_uvc.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Tested-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-09-09 09:49:31 -05:00
Andrzej Pietrasiewicz
6d11ed76c4 usb: gadget: f_uvc: convert f_uvc to new function interface
Use the new function registration interface. It is required
in order to integrate configfs support.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Tested-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
[Updated copyright years]
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-09-09 09:49:16 -05:00
Andrzej Pietrasiewicz
3a83c16ef0 usb: gadget: uvc: separately compile some components of f_uvc
Compile uvc_queue, uvc_v4l2, uvc_video separately so that later they can
be all combined in a separately compiled f_uvc.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Tested-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
[Make uvc_v4l2_ioctl_ops non-static]
[Rename __UVC__V4L2__H__ and __UVC__VIDEO__H__]
[Update MAINTAINERS]
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-09-09 09:49:12 -05:00
Felipe Balbi
f7cc38b16e Linux 3.17-rc4
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Merge tag 'v3.17-rc4' into next

Merge Linux 3.17-rc4 here so we have all the latest
fixes on next too. This also cleans up a few conflicts
when applying patches.

Signed-off-by: Felipe Balbi <balbi@ti.com>

Conflicts:
	drivers/usb/gadget/Makefile
	drivers/usb/gadget/function/Makefile
	drivers/usb/gadget/legacy/Makefile
	drivers/usb/phy/phy-samsung-usb.h
2014-09-08 14:39:01 -05:00
Andrzej Pietrasiewicz
efb540c895 usb: gadget: uvc: move module parameters from f_uvc
When configfs support is integrated the future uvc function
module must not take any parameters. Move parameters to
webcam.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Tested-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-09-08 08:49:37 -05:00
Yegor Yefremov
fa31409a82 usb: gadget: use $(srctree) instead of $(PWD) for includes
Using $(PWD) breaks builds when make was invoked from outside
of the kernel tree.

Signed-off-by: Yegor Yefremov <yegorslists@googlemail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-08-29 15:53:46 -05:00
Amit Virdi
ef11982dd7 usb: gadget: zero: Add support for interrupt EP
Interrupt endpoints behave quite similar to the bulk endpoints with the
difference that the endpoints expect data sending/reception request at
particular intervals till the whole data has not been transmitted.

The interrupt EP support is added to gadget zero. A new alternate setting (=2)
has been added. It has 2 interrupt endpoints. The default parameters are set as:
	bInterval: 1 ms for FS and 8 uFrames (implying 1 ms) for HS/SS
	wMaxPacketSize: 64 bytes for FS and 1024 bytes for HS/SS
However, the same can be overridden through the module parameter interface.

The code is tested for HS and SS on a platform having DWC3 controller.

Signed-off-by: Amit Virdi <amit.virdi@st.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-08-27 14:13:18 -05:00
Andrzej Pietrasiewicz
bcec9784dd usb: gadget: f_uac1: use defined constants as defaults
When configfs support is added the values in question will have to be
used in two different places. Substitute them with defined constants
to avoid duplicating magic numbers.

Tested-by: Sebastian Reimers <sebastian.reimers@googlemail.com>
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-08-20 14:05:14 -05:00
Andrzej Pietrasiewicz
0d992dec96 usb: gadget: audio: convert to new interface of f_uac1
Use the new interface so that the old one can be removed.

Tested-by: Sebastian Reimers <sebastian.reimers@googlemail.com>
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-08-20 14:04:58 -05:00
Andrzej Pietrasiewicz
f3a3406b3f usb: gadget: f_uac1: convert to new function interface with backward compatibility
Converting uac1 to the new function interface requires converting
the USB uac1's function code and its users.

This patch converts the f_uac1.c to the new function interface.

The file is now compiled into a separate usb_f_uac1.ko module.

The old function interface is provided by means of a preprocessor
conditional directives. After all users are converted, the old interface
can be removed.

Tested-by: Sebastian Reimers <sebastian.reimers@googlemail.com>
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-08-20 14:04:54 -05:00
Andrzej Pietrasiewicz
af1a58ca00 usb: gadget: f_uac1: prepare for separate compilation
Integrating configfs requires converting f_uac1 to new function interface,
which in turn requires converting it to the new function interface,
which involves separate compilation of f_uac1.c into usb_f_uac1.ko.
u_uac1.c contains some module parameters. After this patch is applied
they are still a part of the resulting g_audio.ko, but can be guarded
with a compatiblity flag which will be removed when no users of the old
function interface of f_uac1 are left.

Tested-by: Sebastian Reimers <sebastian.reimers@googlemail.com>
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-08-20 14:04:50 -05:00
Andrzej Pietrasiewicz
065a107cdd usb: gadget: f_uac2: use defined constants as defaults
When configfs is integrated the same values will have to be used
as defaults. Use symbolic names in order not to duplicate magic numbers.

Tested-by: Sebastian Reimers <sebastian.reimers@googlemail.com>
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-08-20 14:04:38 -05:00
Andrzej Pietrasiewicz
ad94ac0cfd usb: gadget: audio: convert to new interface of f_uac2
Use the new interface so that the old one can be removed.

Tested-by: Sebastian Reimers <sebastian.reimers@googlemail.com>
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2014-08-20 14:04:21 -05:00