syzbot report [1] describes a deadlock when write operation against an
ashmem fd executed at the time when ashmem is shrinking its cache results
in the following lock sequence:

Possible unsafe locking scenario:

        CPU0                    CPU1
        ----                    ----
   lock(fs_reclaim);
                                lock(&sb->s_type->i_mutex_key#13);
                                lock(fs_reclaim);
   lock(&sb->s_type->i_mutex_key#13);

kswapd takes fs_reclaim and then inode_lock while generic_perform_write
takes inode_lock and then fs_reclaim. However ashmem does not support
writing into backing shmem with a write syscall. The only way to change
its content is to mmap it and operate on mapped memory. Therefore the race
that lockdep is warning about is not valid. Resolve this by introducing a
separate lockdep class for the backing shmem inodes.

[1]: https://lkml.kernel.org/lkml/0000000000000b5f9d059aa2037f@google.com/

Reported-by: syzbot+7a0d9d0b26efefe61780@syzkaller.appspotmail.com
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Cc: stable <stable@vger.kernel.org>
Reviewed-by: Joel Fernandes (Google) <joel@joelfernandes.org>
Link: https://lore.kernel.org/r/20200730192632.3088194-1-surenb@google.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

This patch adds the USB driver source file most_usb.c and
modifies the Makefile and Kconfig accordingly.
Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Link: https://lore.kernel.org/r/1596198058-26541-1-git-send-email-christian.gromm@microchip.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Convert to %pM instead of using custom code.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20200730151506.38827-1-andriy.shevchenko@linux.intel.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Convert to %pM instead of using custom code.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20200730152312.39076-1-andriy.shevchenko@linux.intel.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Inside function ql_get_dump comment statement had a repition of word
"to" which I removed and checkpatch.pl ouputs zero error or warnings
now.
Signed-off-by: Dhiraj Sharma <dhiraj.sharma0024@gmail.com>
Link: https://lore.kernel.org/r/20200728182610.2538-1-dhiraj.sharma0024@gmail.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Make use of the flex_array_size() helper to calculate the size of a
flexible array member within an enclosing structure.

This helper offers defense-in-depth against potential integer
overflows, while at the same time makes it explicitly clear that
we are dealing with a flexible array member.
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Link: https://lore.kernel.org/r/20200729233557.GA17693@embeddedorSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Adjust spacing in macro definitions to align them and improve
readbility
Signed-off-by: Aditya Jain <aditya.jainadityajain.jain@gmail.com>
Link: https://lore.kernel.org/r/20200729192136.23828-4-aditya.jainadityajain.jain@gmail.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Clean up multiline function declartions in hal_phy_cfg.h
to improve code readablility
Signed-off-by: Aditya Jain <aditya.jainadityajain.jain@gmail.com>
Link: https://lore.kernel.org/r/20200729192136.23828-3-aditya.jainadityajain.jain@gmail.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Fixing ERROR: "foo *	bar" should be "foo *bar" in hal_phy_cfg.h
as reported by checkpatch.pl
Signed-off-by: Aditya Jain <aditya.jainadityajain.jain@gmail.com>
Link: https://lore.kernel.org/r/20200729192136.23828-2-aditya.jainadityajain.jain@gmail.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

This patch fixes the warning reported for missing prototypes due to
missing header file. Also, it includes changes to remove
unused_but_set_variables.
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Vaibhav Agarwal <vaibhav.sr@gmail.com>
Link: https://lore.kernel.org/r/6341df9b0b5985047af0bbbc8e136481ac515b25.1594290158.git.vaibhav.sr@gmail.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Currently you can't enable the Gey Bus Audio Codec because there is no
entry for it in the Kconfig file. Originally the config name was going
to be AUDIO_MSM8994 but that's not correct because other types of
hardware are supported now. I have chosen the name AUDIO_APB_CODEC
instead.  Also I had to update the dependencies for GREYBUS_AUDIO to
make the compile work.
Signed-off-by: Vaibhav Agarwal <vaibhav.sr@gmail.com>
Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/2b50959ccffe5a4372880d27e79ef3be1873372c.1594290158.git.vaibhav.sr@gmail.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Greybus Codec driver allows modules to be dynamically added and removed,
which further requires updating the DAPM configurations as well.

With current snd_soc architecture, dynamic audio modules is not yet
supported. This patch provides helper APIs to update DAPM configurations
in response to modules which are dynamically added or removed. The
source is primarily based on snd_dapm.c
Signed-off-by: Vaibhav Agarwal <vaibhav.sr@gmail.com>
Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/35e1baaae10a3f2162e71be4c2f75a701584f0e6.1594290158.git.vaibhav.sr@gmail.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Fix compilation errors for GB Audio topology parser code with recent
kernel versions.
Signed-off-by: Vaibhav Agarwal <vaibhav.sr@gmail.com>
Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/2542330352ae1d01469a616ea45edb461615e072.1594290158.git.vaibhav.sr@gmail.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Due to dependencies on ASoC framework changes, GB dummy codec module
compilation is currently disabled. This patch updates codec driver as
per the latest ASoC APIs.
Signed-off-by: Vaibhav Agarwal <vaibhav.sr@gmail.com>
Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/dd66a960fca186da055600fe1e622b7a814cb543.1594290158.git.vaibhav.sr@gmail.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

As per the current implementation for GB codec driver, a jack list is
maintained for each module. And it expects the list to be populated by
the snd_soc_jack structure which would require modifications in
mainstream code.

However, this is not a necessary requirement and the list can be easily
maintained within gbaudio_module_info as well. This patch provides the
relevant changes for the same.
Signed-off-by: Vaibhav Agarwal <vaibhav.sr@gmail.com>
Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/4ee030af7a8e203f89a6e513313e36f4e2991e5b.1594290158.git.vaibhav.sr@gmail.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

snd_soc_jack APIs are modified in recent kernel versions. This patch
updates the codec driver to resolve the compilation errors related to
jack framework.
Signed-off-by: Vaibhav Agarwal <vaibhav.sr@gmail.com>
Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/896b8e24d990f2bca5aafaebd26e37095042951e.1594290158.git.vaibhav.sr@gmail.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

The nasty TODO items are done.
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Link: https://lore.kernel.org/r/20200729003531.907370-1-samuel.thibault@ens-lyon.orgSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Drivers using legacy power management .suspen()/.resume() callbacks
have to manage PCI states and device's PM states themselves. They also
need to take care of standard configuration registers.

Switch to generic power management framework using a single
"struct dev_pm_ops" variable to take the unnecessary load from the driver.
This also avoids the need for the driver to directly call most of the PCI
helper functions and device power state control functions, as through
the generic framework PCI Core takes care of the necessary operations,
and drivers are required to do only device-specific jobs.
Signed-off-by: Vaibhav Gupta <vaibhavgupta40@gmail.com>
Link: https://lore.kernel.org/r/20200728123349.1331679-1-vaibhavgupta40@gmail.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Removed braces for a 'if' condition as it contain only single line &
there is no need for braces for such case according to coding style
rules.
Signed-off-by: Ankit Baluni <b18007@students.iitmandi.ac.in>
Link: https://lore.kernel.org/r/20200729074541.1972-1-b18007@students.iitmandi.ac.inSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

The variable ret is being assigned an error return value that is never
read, the control passes to a return statement and ret is never referenced.
Remove the redundant assignment. Also remove an empty line.

Addresses-Coverity: ("Unused value")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Link: https://lore.kernel.org/r/20200729100525.573500-1-colin.king@canonical.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

This patch removes the dependency to NET as it is no longer needed.
Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Link: https://lore.kernel.org/r/1595927275-27462-1-git-send-email-christian.gromm@microchip.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

The variable authmode can be uninitialized. The danger would be if
it equals to _WPA_IE_ID_ (0xdd) or _WPA2_IE_ID_ (0x33). We can avoid
this by setting it to zero instead. This is the approach that was
used in the rtl8723bs driver.

Fixes: 7b464c9f ("staging: r8188eu: Add files for new driver - part 4")
Co-developed-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20200728072153.9202-1-dinghao.liu@zju.edu.cnSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Thanks to Okash's latest work, the TODO list is essentially empty, so
the way out from staging now seems open.

The status of the remaining issue mentioned in TODO is not clear, we
asked the speakup user mailing list for reproducer cases, but didn't get
a really specific scenario. One serious bug was fixed by 9d32c0cd
("staging/speakup: fix get_word non-space look-ahead"), which does not
seem to really be related to the bug mentioned in TODO. Possibly the bug
mentioned in TODO has been fixed long ago and people have been thinking
that it was not because they can not distinguish the symptoms mentioned
in TODO from the symptoms of the bug fixed by 9d32c0cd.
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>

Link: https://lore.kernel.org/r/20200726165452.qhos3wrjcm6jmcmx@functionSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Replace the existing /* fall through */ comments and its variants with
the new pseudo-keyword macro fallthrough[1].

[1] https://www.kernel.org/doc/html/v5.7/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-throughSigned-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Link: https://lore.kernel.org/r/20200727183734.GA28824@embeddedorSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Replace the existing /* fall through */ comments and its variants with
the new pseudo-keyword macro fallthrough[1].

[1] https://www.kernel.org/doc/html/v5.7/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-throughSigned-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Link: https://lore.kernel.org/r/20200727184042.GA29074@embeddedorSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Replace the existing /* fall through */ comments and its variants with
the new pseudo-keyword macro fallthrough[1].

[1] https://www.kernel.org/doc/html/v5.7/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-throughSigned-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Link: https://lore.kernel.org/r/20200727184247.GA29207@embeddedorSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Replace the existing /* fall through */ comments and its variants with
the new pseudo-keyword macro fallthrough[1].

[1] https://www.kernel.org/doc/html/v5.7/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-throughSigned-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Link: https://lore.kernel.org/r/20200727185838.GA29595@embeddedorSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Replace the existing /* fall through */ comments and its variants with
the new pseudo-keyword macro fallthrough[1].

[1] https://www.kernel.org/doc/html/v5.7/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-throughSigned-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Link: https://lore.kernel.org/r/20200727190417.GA29944@embeddedorSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Replace the existing /* fall through */ comments and its variants with
the new pseudo-keyword macro fallthrough[1].

[1] https://www.kernel.org/doc/html/v5.7/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-throughSigned-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Link: https://lore.kernel.org/r/20200727190657.GA30194@embeddedorSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Replace the existing /* fall through */ comments and its variants with
the new pseudo-keyword macro fallthrough[1].

[1] https://www.kernel.org/doc/html/v5.7/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-throughSigned-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Link: https://lore.kernel.org/r/20200727190829.GA30332@embeddedorSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Replace the existing /* fall through */ comments and its variants with
the new pseudo-keyword macro fallthrough[1].

[1] https://www.kernel.org/doc/html/v5.7/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-throughSigned-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Link: https://lore.kernel.org/r/20200727191006.GA30474@embeddedorSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Remove redundant variable in file fwio.c used for returning value.

Issue was found using Coccinelle:

@@
local idexpression ret;
expression e;
@@

-ret =
+return
     e;
-return ret;
Signed-off-by: Sumera Priyadarsini <sylphrenadin@gmail.com>
Link: https://lore.kernel.org/r/20200726130720.12993-1-sylphrenadin@gmail.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

rtw_aes_decrypt, rtw_tkip_decrypt, rtw_wep_decrypt, rtw_aes_encrypt,
rtw_tkip_encrypt, rtw_wep_encrypt are takes (u8 *) second argiment and
always uses it as (struct recv_frame *) or (struct xmit_frame *).
This is causes a lot of unnecessary type casts
and complicates refactoring.
Signed-off-by: Ivan Safonov <insafonov@gmail.com>
Link: https://lore.kernel.org/r/20200726210246.68633-1-insafonov@gmail.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

This makes the driver use the irqchip template to assign
properties to the gpio_irq_chip instead of using the
explicit calls to gpiochip_irqchip_add(). The irqchip is
instead added while adding the gpiochip.

Cc: Nishad Kamdar <nishadkamdar@gmail.com>
Cc: Johan Hovold <johan@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20200722074414.48457-1-linus.walleij@linaro.orgSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

If we fail to queue the buffer then it can never be dequeued.  This can
lead to a forever loop in stop_streaming() when we wait for everything
to finish.

Fixes: 70ec64cc ("staging: bcm2835-camera: Ensure all buffers are returned on disable")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/20200722130651.GC220681@mwandaSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

We need the staging fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Merge tag 'kbuild-fixes-v5.8-3' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild into master

Pull Kbuild fixes from Masahiro Yamada:

 - do not use non-portable strsep() in a host program

 - fix single target builds for external modules

 - change Clang's --prefix option to make it work for the latest Clang

* tag 'kbuild-fixes-v5.8-3' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
  Makefile: Fix GCC_TOOLCHAIN_DIR prefix for Clang cross compilation
  kbuild: fix single target builds for external modules
  modpost: remove use of non-standard strsep() in HOSTCC code

Merge branch 'parisc-5.8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux into master

Pull parisc fixes from Helge Deller:
 "Two fixes:

   - Add the cmpxchg() function for pointers to u8 values. This fixes a
     kernel linking error when building the tusb1210 driver (from Liam
     Beguin).

   - Add a define for atomic64_set_release() to fix CPU soft lockups
     which happen because of missing unlocks while processing bit
     operations (from John David Anglin)"

* 'parisc-5.8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
  parisc: Add atomic64_set_release() define to avoid CPU soft lockups
  parisc: add support for cmpxchg on u8 pointers

Merge tag 'char-misc-5.8-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc into master

Pull char/misc driver fixes from Greg KH:
 "Here are a few small driver fixes for 5.8-rc7

  They include:

   - habanalabs fixes

   - tiny fpga driver fixes

   - /dev/mem fixup from previous changes

   - interconnect driver fixes

   - binder fix

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'char-misc-5.8-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
  interconnect: msm8916: Fix buswidth of pcnoc_s nodes
  interconnect: Do not skip aggregation for disabled paths
  /dev/mem: Add missing memory barriers for devmem_inode
  binder: Don't use mmput() from shrinker function.
  habanalabs: prevent possible out-of-bounds array access
  fpga: dfl: fix bug in port reset handshake
  fpga: dfl: pci: reduce the scope of variable 'ret'
  habanalabs: set 4s timeout for message to device CPU
  habanalabs: set clock gating per engine
  habanalabs: block WREG_BULK packet on PDMA