just a bunch of bugfixes all over the place.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
Pull virtio fixes from Michael Tsirkin:
"Just a bunch of bugfixes all over the place"
* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost: (26 commits)
virtio-mem: check if the config changed before fake offlining memory
virtio-mem: keep retrying on offline_and_remove_memory() errors in Sub Block Mode (SBM)
virtio-mem: convert most offline_and_remove_memory() errors to -EBUSY
virtio-mem: remove unsafe unplug in Big Block Mode (BBM)
pds_vdpa: fix up debugfs feature bit printing
pds_vdpa: alloc irq vectors on DRIVER_OK
pds_vdpa: clean and reset vqs entries
pds_vdpa: always allow offering VIRTIO_NET_F_MAC
pds_vdpa: reset to vdpa specified mac
virtio-net: Zero max_tx_vq field for VIRTIO_NET_CTRL_MQ_HASH_CONFIG case
vdpa/mlx5: Fix crash on shutdown for when no ndev exists
vdpa/mlx5: Delete control vq iotlb in destroy_mr only when necessary
vdpa/mlx5: Fix mr->initialized semantics
vdpa/mlx5: Correct default number of queues when MQ is on
virtio-vdpa: Fix cpumask memory leak in virtio_vdpa_find_vqs()
vduse: Use proper spinlock for IRQ injection
vdpa: Enable strict validation for netlinks ops
vdpa: Add max vqp attr to vdpa_nl_policy for nlattr length check
vdpa: Add queue index attr to vdpa_nl_policy for nlattr length check
vdpa: Add features attr to vdpa_nl_policy for nlattr length check
...
The failure handling procedure destroys page pools for all queues,
including those that haven't had their page pool created yet. this patch
introduces necessary adjustments to prevent potential risks and
inconsistency with the error handling behavior.
Fixes: 0ebab78cbc ("net: veth: add page_pool for page recycling")
Acked-by: Jesper Dangaard Brouer <hawk@kernel.org>
Signed-off-by: Liang Chen <liangchen.linux@gmail.com>
Link: https://lore.kernel.org/r/20230812023016.10553-1-liangchen.linux@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Michal Schmidt says:
====================
octeon_ep: fixes for error and remove paths
I have an Octeon card that's misconfigured in a way that exposes a
couple of bugs in the octeon_ep driver's error paths. It can reproduce
the issues that patches 1 & 4 are fixing. Patches 2 & 3 are a result of
reviewing the nearby code.
====================
Link: https://lore.kernel.org/r/20230810150114.107765-1-mschmidt@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
If it fails to get the devices's MAC address, octep_probe exits while
leaving the delayed work intr_poll_task queued. When the work later
runs, it's a use after free.
Move the cancelation of intr_poll_task from octep_remove into
octep_device_cleanup. This does not change anything in the octep_remove
flow, but octep_device_cleanup is called also in the octep_probe error
path, where the cancelation is needed.
Note that the cancelation of ctrl_mbox_task has to follow
intr_poll_task's, because the ctrl_mbox_task may be queued by
intr_poll_task.
Fixes: 24d4333233 ("octeon_ep: poll for control messages")
Signed-off-by: Michal Schmidt <mschmidt@redhat.com>
Link: https://lore.kernel.org/r/20230810150114.107765-5-mschmidt@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
intr_poll_task may queue ctrl_mbox_task. The function
octep_poll_non_ioq_interrupts_cn93_pf does this.
When removing the driver and canceling these two works, cancel
ctrl_mbox_task last to guarantee it does not run anymore.
Fixes: 24d4333233 ("octeon_ep: poll for control messages")
Signed-off-by: Michal Schmidt <mschmidt@redhat.com>
Link: https://lore.kernel.org/r/20230810150114.107765-4-mschmidt@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
tx_timeout_task is canceled too early when removing the driver. Nothing
prevents .ndo_tx_timeout from triggering and queuing the work again.
Better cancel it after the netdev is unregistered.
It's harmless for octep_tx_timeout_task to run in the window between the
unregistration and cancelation, because it checks netif_running.
Fixes: 862cd659a6 ("octeon_ep: Add driver framework and device initialization")
Signed-off-by: Michal Schmidt <mschmidt@redhat.com>
Link: https://lore.kernel.org/r/20230810150114.107765-3-mschmidt@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The intention was to wait up to 500 ms for the mbox response.
The third argument to wait_event_interruptible_timeout() is supposed to
be the timeout duration. The driver mistakenly passed absolute time
instead.
Fixes: 577f0d1b1c ("octeon_ep: add separate mailbox command and response queues")
Signed-off-by: Michal Schmidt <mschmidt@redhat.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://lore.kernel.org/r/20230810150114.107765-2-mschmidt@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
On Zynq UltraScale+ MPSoC ubuntu platform when systemctl issues suspend,
network manager bring down the interface and goes into suspend. When it
wakes up it again enables the interface.
This leads to xilinx-psgtr "PLL lock timeout" on interface bringup, as
the power management controller power down the entire FPD (including
SERDES) if none of the FPD devices are in use and serdes is not
initialized on resume.
$ sudo rtcwake -m no -s 120 -v
$ sudo systemctl suspend <this does ifconfig eth1 down>
$ ifconfig eth1 up
xilinx-psgtr fd400000.phy: lane 0 (type 10, protocol 5): PLL lock timeout
phy phy-fd400000.phy.0: phy poweron failed --> -110
macb driver is called in this way:
1. macb_close: Stop network interface. In this function, it
reset MACB IP and disables PHY and network interface.
2. macb_suspend: It is called in kernel suspend flow. But because
network interface has been disabled(netif_running(ndev) is
false), it does nothing and returns directly;
3. System goes into suspend state. Some time later, system is
waken up by RTC wakeup device;
4. macb_resume: It does nothing because network interface has
been disabled;
5. macb_open: It is called to enable network interface again. ethernet
interface is initialized in this API but serdes which is power-off
by PMUFW during FPD-off suspend is not initialized again and so
we hit GT PLL lock issue on open.
To resolve this PLL timeout issue always do PS GTR initialization
when ethernet device is configured as non-wakeup source.
Fixes: f22bd29ba1 ("net: macb: Fix ZynqMP SGMII non-wakeup source resume failure")
Fixes: 8b73fa3ae0 ("net: macb: Added ZynqMP-specific initialization")
Signed-off-by: Radhey Shyam Pandey <radhey.shyam.pandey@amd.com>
Link: https://lore.kernel.org/r/1691414091-2260697-1-git-send-email-radhey.shyam.pandey@amd.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
svc_tcp_sendmsg used to factor in the xdr->page_base when sending pages,
but commit 5df5dd03a8 ("sunrpc: Use sendmsg(MSG_SPLICE_PAGES) rather
then sendpage") dropped that part of the handling. Fix it by setting
the bv_offset of the first bvec.
Fixes: 5df5dd03a8 ("sunrpc: Use sendmsg(MSG_SPLICE_PAGES) rather then sendpage")
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
iproc_i2c_rd_reg() and iproc_i2c_wr_reg() are called from both
interrupt context (e.g. bcm_iproc_i2c_isr) and process context
(e.g. bcm_iproc_i2c_suspend). Therefore, interrupts should be
disabled to avoid potential deadlock. To prevent this scenario,
use spin_lock_irqsave().
Fixes: 9a10387280 ("i2c: iproc: add NIC I2C support")
Signed-off-by: Chengfeng Ye <dg573847474@gmail.com>
Acked-by: Ray Jui <ray.jui@broadcom.com>
Reviewed-by: Andi Shyti <andi.shyti@kernel.org>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Since commit 03c835f498 ("i2c: Switch .probe() to not take an id
parameter") .probe() is the recommended callback to implement (again).
Reflect this in the documentation and don't mention .probe_new() any
more.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: Andi Shyti <andi.shyti@kernel.org>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Commit 3f9ffce576 ("drm/i915: Do panel VBT init early if the VBT
declares an explicit panel type") started using -1 as the value for
unset panel_type. It gets initialized in intel_panel_init_alloc(), but
the SDVO code never calls it.
Call intel_panel_init_alloc() to initialize the panel, including the
panel_type.
Reported-by: Tomi Leppänen <tomi@tomin.site>
Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/8896
Fixes: 3f9ffce576 ("drm/i915: Do panel VBT init early if the VBT declares an explicit panel type")
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: <stable@vger.kernel.org> # v6.1+
Reviewed-by: Uma Shankar <uma.shankar@intel.com>
Tested-by: Tomi Leppänen <tomi@tomin.site>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230803122706.838721-1-jani.nikula@intel.com
(cherry picked from commit 26e60294e8)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
This should be done before the soft min/max frequencies are restored.
When we disable the "Ignore efficient frequency" flag, GuC does not
actually bring the requested freq down to RPn.
Specifically, this scenario-
- ignore efficient freq set to true
- reduce min to RPn (from efficient)
- suspend
- resume (includes GuC load, restore soft min/max, restore efficient freq)
- validate min freq has been resored to RPn
This will fail if we didn't first restore(disable, in this case) efficient
freq flag before setting the soft min frequency.
v2: Bring the min freq down to RPn when we disable efficient freq (Rodrigo)
Also made the change to set the min softlimit to RPn at init. Otherwise, we
were storing RPe there.
Link: https://gitlab.freedesktop.org/drm/intel/-/issues/8736
Fixes: 55f9720dbf ("drm/i915/guc/slpc: Provide sysfs for efficient freq")
Fixes: 95ccf312a1 ("drm/i915/guc/slpc: Allow SLPC to use efficient frequency")
Signed-off-by: Vinay Belgaumkar <vinay.belgaumkar@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: John Harrison <John.C.Harrison@Intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230726010044.3280402-1-vinay.belgaumkar@intel.com
(cherry picked from commit 28e671114f)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
The "ret" variable is uninitialized. It was the "p2wi->rstc" variable
that was intended. We can also use the %pe string format to print the
error code name instead of just the number.
Fixes: 75ff8a340a ("i2c: sun6i-p2wi: Use devm_clk_get_enabled()")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: Andi Shyti <andi.shyti@kernel.org>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
The readdir implementation currently processes always up to the last index
it finds. This however can result in an infinite loop if the directory has
a large number of entries such that they won't all fit in the given buffer
passed to the readdir callback, that is, dir_emit() returns a non-zero
value. Because in that case readdir() will be called again and if in the
meanwhile new directory entries were added and we still can't put all the
remaining entries in the buffer, we keep repeating this over and over.
The following C program and test script reproduce the problem:
$ cat /mnt/readdir_prog.c
#include <sys/types.h>
#include <dirent.h>
#include <stdio.h>
int main(int argc, char *argv[])
{
DIR *dir = opendir(".");
struct dirent *dd;
while ((dd = readdir(dir))) {
printf("%s\n", dd->d_name);
rename(dd->d_name, "TEMPFILE");
rename("TEMPFILE", dd->d_name);
}
closedir(dir);
}
$ gcc -o /mnt/readdir_prog /mnt/readdir_prog.c
$ cat test.sh
#!/bin/bash
DEV=/dev/sdi
MNT=/mnt/sdi
mkfs.btrfs -f $DEV &> /dev/null
#mkfs.xfs -f $DEV &> /dev/null
#mkfs.ext4 -F $DEV &> /dev/null
mount $DEV $MNT
mkdir $MNT/testdir
for ((i = 1; i <= 2000; i++)); do
echo -n > $MNT/testdir/file_$i
done
cd $MNT/testdir
/mnt/readdir_prog
cd /mnt
umount $MNT
This behaviour is surprising to applications and it's unlike ext4, xfs,
tmpfs, vfat and other filesystems, which always finish. In this case where
new entries were added due to renames, some file names may be reported
more than once, but this varies according to each filesystem - for example
ext4 never reported the same file more than once while xfs reports the
first 13 file names twice.
So change our readdir implementation to track the last index number when
opendir() is called and then make readdir() never process beyond that
index number. This gives the same behaviour as ext4.
Reported-by: Rob Landley <rob@landley.net>
Link: https://lore.kernel.org/linux-btrfs/2c8c55ec-04c6-e0dc-9c5c-8c7924778c35@landley.net/
Link: https://bugzilla.kernel.org/show_bug.cgi?id=217681
CC: stable@vger.kernel.org # 6.4+
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
We recently had problems where a network namespace was deleted
causing hard to debug reconnect problems. To help deal with
configuration issues like this it is useful to dump the network
namespace to better debug what happened.
So add this to information displayed in /proc/fs/cifs/DebugData for
the server (and channels if mounted with multichannel). For example:
Local Users To Server: 1 SecMode: 0x1 Req On Wire: 0 Net namespace: 4026531840
This can be easily compared with what is displayed for the
processes on the system. For example /proc/1/ns/net in this case
showed the same thing (see below), and we can see that the namespace
is still valid in this example.
'net:[4026531840]'
Cc: stable@vger.kernel.org
Acked-by: Paulo Alcantara (SUSE) <pc@manguebit.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
The controller may be shared with other port, for example the firmware.
Handle the interrupt from other sources will cause crash since some
data are not initialized. So only handle the interrupt of the driver's
transfer and discard others.
Fixes: d62fbdb99a ("i2c: add support for HiSilicon I2C controller")
Signed-off-by: Yicong Yang <yangyicong@hisilicon.com>
Reviewed-by: Andi Shyti <andi.shyti@kernel.org>
Link: https://lore.kernel.org/r/20230801124625.63587-1-yangyicong@huawei.com
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Under the current code, when cifs_readpage_worker is called, the call
contract is that the callee should unlock the page. This is documented
in the read_folio section of Documentation/filesystems/vfs.rst as:
> The filesystem should unlock the folio once the read has completed,
> whether it was successful or not.
Without this change, when fscache is in use and cache hit occurs during
a read, the page lock is leaked, producing the following stack on
subsequent reads (via mmap) to the page:
$ cat /proc/3890/task/12864/stack
[<0>] folio_wait_bit_common+0x124/0x350
[<0>] filemap_read_folio+0xad/0xf0
[<0>] filemap_fault+0x8b1/0xab0
[<0>] __do_fault+0x39/0x150
[<0>] do_fault+0x25c/0x3e0
[<0>] __handle_mm_fault+0x6ca/0xc70
[<0>] handle_mm_fault+0xe9/0x350
[<0>] do_user_addr_fault+0x225/0x6c0
[<0>] exc_page_fault+0x84/0x1b0
[<0>] asm_exc_page_fault+0x27/0x30
This requires a reboot to resolve; it is a deadlock.
Note however that the call to cifs_readpage_from_fscache does mark the
page clean, but does not free the folio lock. This happens in
__cifs_readpage_from_fscache on success. Releasing the lock at that
point however is not appropriate as cifs_readahead also calls
cifs_readpage_from_fscache and *does* unconditionally release the lock
after its return. This change therefore effectively makes
cifs_readpage_worker work like cifs_readahead.
Signed-off-by: Russell Harmon <russ@har.mn>
Acked-by: Paulo Alcantara (SUSE) <pc@manguebit.com>
Reviewed-by: David Howells <dhowells@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Steve French <stfrench@microsoft.com>
Tegra processors prior to Tegra186 used APB DMA for I2C requiring
CONFIG_TEGRA20_APB_DMA=y while Tegra186 and later use GPC DMA requiring
CONFIG_TEGRA186_GPC_DMA=y.
The check for if the processor uses APB DMA is inverted and so the wrong
DMA config options are checked.
This means if CONFIG_TEGRA20_APB_DMA=y but CONFIG_TEGRA186_GPC_DMA=n
with a Tegra186 or later processor the driver will incorrectly think DMA is
enabled and attempt to request DMA channels that will never be availible,
leaving the driver in a perpetual EPROBE_DEFER state.
Fixes: 48cb6356fa ("i2c: tegra: Add GPCDMA support")
Signed-off-by: Parker Newman <pnewman@connecttech.com>
Acked-by: Andi Shyti <andi.shyti@kernel.org>
Acked-by: Akhil R <akhilrajeev@nvidia.com>
Link: https://lore.kernel.org/r/fcfcf9b3-c8c4-9b34-2ff8-cd60a3d490bd@connecttech.com
Signed-off-by: Wolfram Sang <wsa@kernel.org>
If the driver fails to obtain a DMA channel, it will initiate cleanup
and try to release the DMA channel that couldn't be retrieved. This will
cause a crash because the cleanup will try to dereference an ERR_PTR()-
encoded error code.
However, there's nothing to clean up at this point yet, so we can avoid
this by simply resetting the DMA channel to NULL instead of storing the
error code.
Fixes: fcc8a89a1c ("i2c: tegra: Share same DMA channel for RX and TX")
Signed-off-by: Thierry Reding <treding@nvidia.com>
Tested-by: Akhil R <akhilrajeev@nvidia.com>
Reviewed-by: Andi Shyti <andi.shyti@kernel.org>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
In the I2C_FUNC_SMBUS_BLOCK_DATA case, the invalid length byte value
(outside of 1-32) of the SMBus block data response from the Slave device
is not correctly handled by the I2C Designware driver.
In case IC_EMPTYFIFO_HOLD_MASTER_EN==1, which cannot be detected
from the registers, the Master can be disabled only if the STOP bit
is set. Without STOP bit set, the Master remains active, holding the bus
until receiving a block data response length. This hangs the bus and
is unrecoverable.
Avoid this by issuing another dump read to reach the stop condition when
an invalid length byte is received.
Cc: stable@vger.kernel.org
Signed-off-by: Tam Nguyen <tamnguyenchi@os.amperecomputing.com>
Acked-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Link: https://lore.kernel.org/r/20230726080001.337353-3-tamnguyenchi@os.amperecomputing.com
Reviewed-by: Andi Shyti <andi.shyti@kernel.org>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Commit 0daede80f8 ("i2c: designware: Convert driver to using regmap API")
changes the logic to validate the whole 32-bit return value of
DW_IC_DATA_CMD register instead of 8-bit LSB without reason.
Later, commit f53f15ba5a ("i2c: designware: Get right data length"),
introduced partial fix but not enough because the "tmp > 0" still test
tmp as 32-bit value and is wrong in case the IC_DATA_CMD[11] is set.
Revert the logic to just before commit 0daede80f8
("i2c: designware: Convert driver to using regmap API").
Fixes: f53f15ba5a ("i2c: designware: Get right data length")
Fixes: 0daede80f8 ("i2c: designware: Convert driver to using regmap API")
Cc: stable@vger.kernel.org
Signed-off-by: Tam Nguyen <tamnguyenchi@os.amperecomputing.com>
Signed-off-by: Quan Nguyen <quan@os.amperecomputing.com>
Acked-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Link: https://lore.kernel.org/r/20230726080001.337353-2-tamnguyenchi@os.amperecomputing.com
Reviewed-by: Andi Shyti <andi.shyti@kernel.org>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
On MX8X platforms, the default clock rate is 0 if without explicit
clock setting in dts nodes. I2c can't work when i2c peripheral clk
rate is 0.
Add a i2c peripheral clk rate check before configuring the clock
register. When i2c peripheral clk rate is 0 and directly return
-EINVAL.
Signed-off-by: Carlos Song <carlos.song@nxp.com>
Acked-by: Dong Aisheng <Aisheng.dong@nxp.com>
Reviewed-by: Andi Shyti <andi.shyti@kernel.org>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Commit 03e909acd9 ("drm/panel: simple: Add support for AUO G121EAN01.4
panel") added support for this panel model, but the timings it implements
are very different from what the datasheet describes. I checked both the
G121EAN01.0 datasheet from [0] and the G121EAN01.4 one from [1] and they
all have the same timings: for example the LVDS clock typical value is 74.4
MHz, not 66.7 MHz as implemented.
Replace the timings with the ones from the documentation. These timings
have been tested and the clock frequencies verified with an oscilloscope to
ensure they are correct.
Also use struct display_timing instead of struct drm_display_mode in order
to also specify the minimum and maximum values.
[0] https://embedded.avnet.com/product/g121ean01-0/
[1] https://embedded.avnet.com/product/g121ean01-4/
Fixes: 03e909acd9 ("drm/panel: simple: Add support for AUO G121EAN01.4 panel")
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230804151239.835216-1-luca.ceresoli@bootlin.com
Use the dev_err_probe() helper to simplify error handling during probe.
This also handle scenario, when EDEFER is returned and useless error is printed.
Fixes error:
panel-jdi-lt070me05000 4700000.dsi.0: cannot get enable-gpio -517
Signed-off-by: David Heidelberg <david@ixit.cz>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230812185239.378582-1-david@ixit.cz
The on-board eeprom on beaglebone series has a power supply from
VDD_3V3A, add that to dts to reduce dummy regulator warning.
Signed-off-by: Shengyu Qu <wiagn233@outlook.com>
Message-ID: <TY3P286MB2611CDC84604B11570B4A8D2980FA@TY3P286MB2611.JPNP286.PROD.OUTLOOK.COM>
Signed-off-by: Tony Lindgren <tony@atomide.com>
This patch adds ethernet PHY reset GPIO config for Beaglebone Black
series boards with revision C3. This fixes a random phy startup failure
bug discussed at [1]. The GPIO pin used for reset is not used on older
revisions, so it is ok to apply to all board revisions. The reset timing
was discussed and tested at [2].
[1] https://forum.digikey.com/t/ethernet-device-is-not-detecting-on-ubuntu-20-04-lts-on-bbg/19948
[2] https://forum.beagleboard.org/t/recognizing-a-beaglebone-black-rev-c3-board/31249/
Signed-off-by: Robert Nelson <robertcnelson@gmail.com>
Signed-off-by: Shengyu Qu <wiagn233@outlook.com>
Message-ID: <TY3P286MB26113797A3B2EC7E0348BBB2980FA@TY3P286MB2611.JPNP286.PROD.OUTLOOK.COM>
Signed-off-by: Tony Lindgren <tony@atomide.com>
This test verifies whether the encapsulated packets have the correct
configured TTL. It does so by sending ICMP packets through the test
topology and mirroring them to a gretap netdevice. On a busy host
however, more than just the test ICMP packets may end up flowing
through the topology, get mirrored, and counted. This leads to
potential spurious failures as the test observes much more mirrored
packets than the sent test packets, and assumes a bug.
Fix this by tightening up the mirror action match. Change it from
matchall to a flower classifier matching on ICMP packets specifically.
Fixes: 45315673e0 ("selftests: forwarding: Test changes in mirror-to-gretap")
Signed-off-by: Petr Machata <petrm@nvidia.com>
Tested-by: Mirsad Todorovac <mirsad.todorovac@alu.unizg.hr>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
The kprobes optimization check can_optimize() calls
insn_is_indirect_jump() to detect indirect jump instructions in
a target function. If any is found, creating an optprobe is disallowed
in the function because the jump could be from a jump table and could
potentially land in the middle of the target optprobe.
With retpolines, insn_is_indirect_jump() additionally looks for calls to
indirect thunks which the compiler potentially used to replace original
jumps. This extra check is however unnecessary because jump tables are
disabled when the kernel is built with retpolines. The same is currently
the case with IBT.
Based on this observation, remove the logic to look for calls to
indirect thunks and skip the check for indirect jumps altogether if the
kernel is built with retpolines or IBT. Remove subsequently the symbols
__indirect_thunk_start and __indirect_thunk_end which are no longer
needed.
Dropping this logic indirectly fixes a problem where the range
[__indirect_thunk_start, __indirect_thunk_end] wrongly included also the
return thunk. It caused that machines which used the return thunk as
a mitigation and didn't have it patched by any alternative ended up not
being able to use optprobes in any regular function.
Fixes: 0b53c374b9 ("x86/retpoline: Use -mfunction-return")
Suggested-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Suggested-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Petr Pavlu <petr.pavlu@suse.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Link: https://lore.kernel.org/r/20230711091952.27944-3-petr.pavlu@suse.com
The linker script arch/x86/kernel/vmlinux.lds.S matches the thunk
sections ".text.__x86.*" from arch/x86/lib/retpoline.S as follows:
.text {
[...]
TEXT_TEXT
[...]
__indirect_thunk_start = .;
*(.text.__x86.*)
__indirect_thunk_end = .;
[...]
}
Macro TEXT_TEXT references TEXT_MAIN which normally expands to only
".text". However, with CONFIG_LTO_CLANG, TEXT_MAIN becomes
".text .text.[0-9a-zA-Z_]*" which wrongly matches also the thunk
sections. The output layout is then different than expected. For
instance, the currently defined range [__indirect_thunk_start,
__indirect_thunk_end] becomes empty.
Prevent the problem by using ".." as the first separator, for example,
".text..__x86.indirect_thunk". This pattern is utilized by other
explicit section names which start with one of the standard prefixes,
such as ".text" or ".data", and that need to be individually selected in
the linker script.
[ nathan: Fix conflicts with SRSO and fold in fix issue brought up by
Andrew Cooper in post-review:
https://lore.kernel.org/20230803230323.1478869-1-andrew.cooper3@citrix.com ]
Fixes: dc5723b02e ("kbuild: add support for Clang LTO")
Signed-off-by: Petr Pavlu <petr.pavlu@suse.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Link: https://lore.kernel.org/r/20230711091952.27944-2-petr.pavlu@suse.com
Skip the srso cmd line parsing which is not needed on Zen1/2 with SMT
disabled and with the proper microcode applied (latter should be the
case anyway) as those are not affected.
Fixes: 5a15d83488 ("x86/srso: Tie SBPB bit setting to microcode patch detection")
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Link: https://lore.kernel.org/r/20230813104517.3346-1-bp@alien8.de
Initially, it was thought that doing an innocuous division in the #DE
handler would take care to prevent any leaking of old data from the
divider but by the time the fault is raised, the speculation has already
advanced too far and such data could already have been used by younger
operations.
Therefore, do the innocuous division on every exit to userspace so that
userspace doesn't see any potentially old data from integer divisions in
kernel space.
Do the same before VMRUN too, to protect host data from leaking into the
guest too.
Fixes: 77245f1c3c ("x86/CPU/AMD: Do not leak quotient data after a division by 0")
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Cc: <stable@kernel.org>
Link: https://lore.kernel.org/r/20230811213824.10025-1-bp@alien8.de
Use LEA instead of ADD when adjusting %rsp in srso_safe_ret{,_alias}()
so as to avoid clobbering flags. Drop one of the INT3 instructions to
account for the LEA consuming one more byte than the ADD.
KVM's emulator makes indirect calls into a jump table of sorts, where
the destination of each call is a small blob of code that performs fast
emulation by executing the target instruction with fixed operands.
E.g. to emulate ADC, fastop() invokes adcb_al_dl():
adcb_al_dl:
<+0>: adc %dl,%al
<+2>: jmp <__x86_return_thunk>
A major motivation for doing fast emulation is to leverage the CPU to
handle consumption and manipulation of arithmetic flags, i.e. RFLAGS is
both an input and output to the target of the call. fastop() collects
the RFLAGS result by pushing RFLAGS onto the stack and popping them back
into a variable (held in %rdi in this case):
asm("push %[flags]; popf; " CALL_NOSPEC " ; pushf; pop %[flags]\n"
<+71>: mov 0xc0(%r8),%rdx
<+78>: mov 0x100(%r8),%rcx
<+85>: push %rdi
<+86>: popf
<+87>: call *%rsi
<+89>: nop
<+90>: nop
<+91>: nop
<+92>: pushf
<+93>: pop %rdi
and then propagating the arithmetic flags into the vCPU's emulator state:
ctxt->eflags = (ctxt->eflags & ~EFLAGS_MASK) | (flags & EFLAGS_MASK);
<+64>: and $0xfffffffffffff72a,%r9
<+94>: and $0x8d5,%edi
<+109>: or %rdi,%r9
<+122>: mov %r9,0x10(%r8)
The failures can be most easily reproduced by running the "emulator"
test in KVM-Unit-Tests.
If you're feeling a bit of deja vu, see commit b63f20a778
("x86/retpoline: Don't clobber RFLAGS during CALL_NOSPEC on i386").
In addition, this breaks booting of clang-compiled guest on
a gcc-compiled host where the host contains the %rsp-modifying SRSO
mitigations.
[ bp: Massage commit message, extend, remove addresses. ]
Fixes: fb3bd914b3 ("x86/srso: Add a Speculative RAS Overflow mitigation")
Closes: https://lore.kernel.org/all/de474347-122d-54cd-eabf-9dcc95ab9eae@amd.com
Reported-by: Srikanth Aithal <sraithal@amd.com>
Reported-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Tested-by: Nathan Chancellor <nathan@kernel.org>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/20230810013334.GA5354@dev-arch.thelio-3990X/
Link: https://lore.kernel.org/r/20230811155255.250835-1-seanjc@google.com
For the TLB_PTLOCK checks we used an optimization to store the spc
register into the spinlock to unlock it. This optimization works as
long as the lightweight spinlock checks (CONFIG_LIGHTWEIGHT_SPINLOCK_CHECK)
aren't enabled, because they really check if the lock word is zero or
__ARCH_SPIN_LOCK_UNLOCKED_VAL and abort with a kernel crash
("Spinlock was trashed") otherwise.
Drop that optimization to make it possible to activate both checks
at the same time.
Noticed-by: Sam James <sam@gentoo.org>
Signed-off-by: Helge Deller <deller@gmx.de>
Tested-by: Sam James <sam@gentoo.org>
Cc: stable@vger.kernel.org # v6.4+
Fixes: 15e64ef652 ("parisc: Add lightweight spinlock checks")
Add a glob to get patches of the users of gpio-regmap, too.
Signed-off-by: Michael Walle <michael@walle.cc>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
This patch uses a vendor register to check whether the system hibernated ever.
The driver will only set the preset when the driver brings up or the system hibernated.
It will avoid the unknown issue that makes the speaker output louder and can't control the volume.
Signed-off-by: Shuming Fan <shumingf@realtek.com
Link: https://lore.kernel.org/r/20230811093822.37573-1-shumingf@realtek.com
Signed-off-by: Mark Brown <broonie@kernel.org
Highlights:
- lenovo-ymc driver causes keyboard + touchpad to not work with >= 6.4
on some Thinkbook models, fix this
- A set of small fixes for mlx-platform
- Other small fixes and hw-id additions
The following is an automated git shortlog grouped by driver:
ACPI:
- scan: Create platform device for CS35L56
ISST:
- Reduce noise for missing numa information in logs
lenovo-ymc:
- Only bind on machines with a convertible DMI chassis-type
msi-ec:
- Fix the build
platform:
- mellanox: Change register offset addresses
- mellanox: mlx-platform: Modify graceful shutdown callback and power down mask
- mellanox: mlx-platform: Fix signals polarity and latch mask
- mellanox: Fix order in exit flow
platform/x86/amd/pmf:
- Fix unsigned comparison with less than zero
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Merge tag 'platform-drivers-x86-v6.5-4' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86
Pull x86 platform drivers fixes from Hans de Goede:
- lenovo-ymc driver causes keyboard + touchpad to not work with >= 6.4
on some Thinkbook models, fix this
- A set of small fixes for mlx-platform
- Other small fixes and hw-id additions
* tag 'platform-drivers-x86-v6.5-4' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86:
platform/x86: lenovo-ymc: Only bind on machines with a convertible DMI chassis-type
platform: mellanox: Change register offset addresses
platform: mellanox: mlx-platform: Modify graceful shutdown callback and power down mask
platform: mellanox: mlx-platform: Fix signals polarity and latch mask
platform: mellanox: Fix order in exit flow
platform/x86: ISST: Reduce noise for missing numa information in logs
platform/x86: msi-ec: Fix the build
ACPI: scan: Create platform device for CS35L56
platform/x86/amd/pmf: Fix unsigned comparison with less than zero
Eleven small fixes, ten in drivers. Of the two fixes marked core, one
is in the raid helper class (used by some raid device drivers) and the
other one is the /proc/scsi/scsi parsing fix for potential reads
beyond the end of the buffer.
Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"Eleven small fixes, ten in drivers.
Of the two fixes marked core, one is in the raid helper class (used by
some raid device drivers) and the other one is the /proc/scsi/scsi
parsing fix for potential reads beyond the end of the buffer"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: qedf: Fix firmware halt over suspend and resume
scsi: qedi: Fix firmware halt over suspend and resume
scsi: qedi: Fix potential deadlock on &qedi_percpu->p_work_lock
scsi: lpfc: Remove reftag check in DIF paths
scsi: ufs: renesas: Fix private allocation
scsi: snic: Fix possible memory leak if device_add() fails
scsi: core: Fix possible memory leak if device_add() fails
scsi: core: Fix legacy /proc parsing buffer overflow
scsi: 53c700: Check that command slot is not NULL
scsi: fnic: Replace return codes in fnic_clean_pending_aborts()
scsi: storvsc: Fix handling of virtual Fibre Channel timeouts
The lenovo-ymc driver is causing the keyboard + touchpad to stop working
on some regular laptop models such as the Lenovo ThinkBook 13s G2 ITL 20V9.
The problem is that there are YMC WMI GUID methods in the ACPI tables
of these laptops, despite them not being Yogas and lenovo-ymc loading
causes libinput to see a SW_TABLET_MODE switch with state 1.
This in turn causes libinput to ignore events from the builtin keyboard
and touchpad, since it filters those out for a Yoga in tablet mode.
Similar issues with false-positive SW_TABLET_MODE=1 reporting have
been seen with the intel-hid driver.
Copy the intel-hid driver approach to fix this and only bind to the WMI
device on machines where the DMI chassis-type indicates the machine
is a convertible.
Add a 'force' module parameter to allow overriding the chassis-type check
so that users can easily test if the YMC interface works on models which
report an unexpected chassis-type.
Fixes: e82882cdd2 ("platform/x86: Add driver for Yoga Tablet Mode switch")
Link: https://bugzilla.redhat.com/show_bug.cgi?id=2229373
Cc: André Apitzsch <git@apitzsch.eu>
Cc: stable@vger.kernel.org
Tested-by: Andrew Kallmeyer <kallmeyeras@gmail.com>
Tested-by: Gergő Köteles <soyer@irl.hu>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20230812144818.383230-1-hdegoede@redhat.com
Move debug register offsets to different location due to hardware changes.
Fixes: dd635e33b5 ("platform: mellanox: Introduce support of new Nvidia L1 switch")
Signed-off-by: Vadim Pasternak <vadimp@nvidia.com>
Reviewed-by: Michael Shych <michaelsh@nvidia.com>
Link: https://lore.kernel.org/r/20230813083735.39090-5-vadimp@nvidia.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Use kernel_power_off() instead of kernel_halt() to pass through
machine_power_off() -> pm_power_off(), otherwise axillary power does
not go off.
Change "power down" bitmask.
Fixes: dd635e33b5 ("platform: mellanox: Introduce support of new Nvidia L1 switch")
Signed-off-by: Vadim Pasternak <vadimp@nvidia.com>
Reviewed-by: Michael Shych <michaelsh@nvidia.com>
Link: https://lore.kernel.org/r/20230813083735.39090-4-vadimp@nvidia.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Change polarity of chassis health and power signals and fix latch reset
mask for L1 switch.
Fixes: dd635e33b5 ("platform: mellanox: Introduce support of new Nvidia L1 switch")
Signed-off-by: Vadim Pasternak <vadimp@nvidia.com>
Reviewed-by: Michael Shych <michaelsh@nvidia.com>
Link: https://lore.kernel.org/r/20230813083735.39090-3-vadimp@nvidia.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Fix exit flow order: call mlxplat_post_exit() after
mlxplat_i2c_main_exit() in order to unregister main i2c driver before
to "mlxplat" driver.
Fixes: 0170f616f4 ("platform: mellanox: Split initialization procedure")
Signed-off-by: Vadim Pasternak <vadimp@nvidia.com>
Reviewed-by: Michael Shych <michaelsh@nvidia.com>
Link: https://lore.kernel.org/r/20230813083735.39090-2-vadimp@nvidia.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Uwe reports:
"Most PHYs signal WoL using an interrupt. So disabling interrupts [at
shutdown] breaks WoL at least on PHYs covered by the marvell driver."
Discussing with Ioana, the problem which was trying to be solved was:
"The board in question is a LS1021ATSN which has two AR8031 PHYs that
share an interrupt line. In case only one of the PHYs is probed and
there are pending interrupts on the PHY#2 an IRQ storm will happen
since there is no entity to clear the interrupt from PHY#2's registers.
PHY#1's driver will get stuck in .handle_interrupt() indefinitely."
Further confirmation that "the two AR8031 PHYs are on the same MDIO
bus."
With WoL using interrupts to wake the system, in such a case, the
system will begin booting with an asserted interrupt. Thus, we need to
cope with an interrupt asserted during boot.
Solve this instead by disabling interrupts during PHY probe. This will
ensure in Ioana's situation that both PHYs of the same type sharing an
interrupt line on a common MDIO bus will have their interrupt outputs
disabled when the driver probes the device, but before we hook in any
interrupt handlers - thus avoiding the interrupt storm.
A better fix would be for platform firmware to disable the interrupting
devices at source during boot, before control is handed to the kernel.
Fixes: e2f016cf77 ("net: phy: add a shutdown procedure")
Link: 20230804071757.383971-1-u.kleine-koenig@pengutronix.de
Reported-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Merge tag 'for-6.5-rc5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs fixes from David Sterba:
"More fixes, some of them going back to older releases and there are
fixes for hangs in stress tests regarding space caching:
- fixes and progress tracking for hangs in free space caching, found
by test generic/475
- writeback fixes, write pages in integrity mode and skip writing
pages that have been written meanwhile
- properly clear end of extent range after an error
- relocation fixes:
- fix race betwen qgroup tree creation and relocation
- detect and report invalid reloc roots"
* tag 'for-6.5-rc5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
btrfs: set cache_block_group_error if we find an error
btrfs: reject invalid reloc tree root keys with stack dump
btrfs: exit gracefully if reloc roots don't match
btrfs: avoid race between qgroup tree creation and relocation
btrfs: properly clear end of the unreserved range in cow_file_range
btrfs: don't wait for writeback on clean pages in extent_write_cache_pages
btrfs: don't stop integrity writeback too early
btrfs: wait for actual caching progress during allocation
- mark virtual chips exposed by gpio-sim as ones that can sleep (callbacks
must not be called from interrupt context)
- fix an off-by-one error in gpio-ws16c48
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Merge tag 'gpio-fixes-for-v6.5-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux
Pull gpio fixes from Bartosz Golaszewski:
- mark virtual chips exposed by gpio-sim as ones that can sleep
(callbacks must not be called from interrupt context)
- fix an off-by-one error in gpio-ws16c48
* tag 'gpio-fixes-for-v6.5-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
gpio: ws16c48: Fix off-by-one error in WS16C48 resource region extent
gpio: sim: mark the GPIO chip as a one that can sleep
