Add the new SoCs added in qcom,ids.h to the soc_id array so they show
up correctly in the socinfo sysfs.

Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230104115348.25046-5-stephan@gerhold.net

Sync the SoC IDs in qcom,ids.h with relevant entries from Qualcomm's LK
bootloader [1] that is used for almost all older Qualcomm SoCs.

Several of these are already supported, e.g.:
  - MSM8960 -> APQ8060, MSM8260, ...
  - MSM8976 -> APQ8076
  - MSM8956 -> APQ8056
Others are currently being worked on, e.g.:
  - MSM8909(W) -> APQ8009(W), MSM8905, MSM8209, ...
  - MSM8939 -> MSM8239, ...

And even all remaining ones added are close enough to what is already
supported so that future support is realistic (if someone steps up to
do the work).

Add all of them at once to avoid having to add them one by one in the
future. This will also benefit other projects making use of the same
dt-bindings, e.g. bootloaders where adding support for all these SoCs
is a bit easier than on Linux.

[1]: https://git.codelinaro.org/clo/la/kernel/lk/-/blob/9d563e4a1d38c5a662bf94215ffc828db57c9e19/platform/msm_shared/smem.h#L286



Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230104115348.25046-4-stephan@gerhold.net

QRD (Qualcomm Reference Design) = 0xb = 11 is used on many devices that
were originally derived from some reference design provided by Qualcomm.

Examples of existing devices in Linux would be:
  - msm8916-longcheer-l8150/l8910, msm8916-wingtech-wt88047
  - msm8953-xiaomi-daisy/tissot/vince
  - msm8998-fxtec-pro1
  - sm4250-oneplus-billie2

Add it to qcom,ids.h so the qcom,board-id properties can be rewritten
more clearly using the macros in a future patch set, i.e.

  qcom,board-id = <QCOM_BOARD_ID(QRD, 1, 0) 0> instead of
  qcom,board-id = <0x1000b 0x00>

Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230104115348.25046-3-stephan@gerhold.net

The soc_id array is mostly ordered by the numeric "msm-id" defined in
qcom,ids.h but some recent entries were added at the wrong place.

While it does not make a functional difference it does make it harder
to regenerate the entire array after adding a bunch of new IDs.

Fixes: de320c07 ("soc: qcom: socinfo: Add MSM8956/76 SoC IDs to the soc_id table")
Fixes: 147f6534

 ("soc: qcom: socinfo: Add SM8550 ID")
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230104115348.25046-2-stephan@gerhold.net

Qualcomm driver fixes for v6.2

Updated error handling in the async packer router driver made an
optional property required, fix this. Also improve error handling in the
probe function of the CPR driver.

MSM8936/MSM8939 should like MSM8916 not require glink-channels.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230117024846.1367794-3-bryan.odonoghue@linaro.org

The SCM VMIDs represent predefined mappings that come from the
irreplaceable and non-omittable firmware that comes with every
Qualcomm SoC (unless you steal engineering samples from the factory)
and help clarify otherwise totally magic numbers which we are
required to pass to the secure world for some parts of the SoC to
work at all (with modem being the prime example).

On top of that, with changes to the rmtfs binding, secure VMIDs will
become useful to have in device trees for readability. Separate them
out and add to include/dt-bindings.

Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230109130523.298971-3-konrad.dybcio@linaro.org

Some SoCs require that RMTFS is also mapped to the NAV VM. Trying to
power on the modem without that results in the whole platform
crashing and forces a hard reboot within about 2 seconds. Add support
for mapping the region to additional VMs, such as NAV to open a path
towards enabling modem on such platforms.

Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
[Konrad: reword, make conditional and flexible, add a define for NAV VMID]
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230109130523.298971-2-konrad.dybcio@linaro.org

Some SoCs mandate that the RMTFS is also assigned to the NAV VM, while
others really don't want that. Since it has to be conditional, turn
qcom,vmid into an u32 array so that we can handle the NAV case, as
well as other similar ones if they pop up in the future.

Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230109130523.298971-1-konrad.dybcio@linaro.org

Add compatible for scm driver for QDU1000 and QRU1000 platforms. These
drivers only require the compatible field, so update the bindings
accordingly for these platforms.

Signed-off-by: Melody Olvera <quic_molvera@quicinc.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20221216231312.22574-1-quic_molvera@quicinc.com

SCM has clock inputs and interconnects only on some of the SoCs, so
disallow them inb other cases, which makes the binding stricter.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20221122092345.44369-2-krzysztof.kozlowski@linaro.org

Document the clocks (core, bus and iface) used on MSM8226 SCM.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20221122092345.44369-1-krzysztof.kozlowski@linaro.org

The five msm8976_cfg_* objects ought to be static, as reported by LKP
and sparse, fix this.

drivers/soc/qcom/ramp_controller.c:235:27: sparse: sparse: symbol 'msm8976_cfg_dfs_sid' was not declared. Should it be static?
drivers/soc/qcom/ramp_controller.c:246:27: sparse: sparse: symbol 'msm8976_cfg_link_sid' was not declared. Should it be static?
drivers/soc/qcom/ramp_controller.c:250:27: sparse: sparse: symbol 'msm8976_cfg_lmh_sid' was not declared. Should it be static?
drivers/soc/qcom/ramp_controller.c:256:27: sparse: sparse: symbol 'msm8976_cfg_ramp_en' was not declared. Should it be static?
drivers/soc/qcom/ramp_controller.c:262:27: sparse: sparse: symbol 'msm8976_cfg_ramp_dis' was not declared. Should it be static?

Fixes: a723c95f

 ("soc: qcom: Add Qualcomm Ramp Controller driver")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Bjorn Andersson <quic_bjorande@quicinc.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230110042004.2378444-1-quic_bjorande@quicinc.com

Add power domain description for sa8775p and a new compatible to match it.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230109174511.1740856-15-brgl@bgdev.pl

Add a compatible for sa8775p platforms and relevant defines to the include
file.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230109174511.1740856-14-brgl@bgdev.pl

If an error occurs after a successful pm_genpd_init() call, it should be
undone by a corresponding pm_genpd_remove().

Add the missing call in the error handling path, as already done in the
remove function.

Fixes: bf6910ab

 ("power: avs: Add support for CPR (Core Power Reduction)")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/0f520597dbad89ab99c217c8986912fa53eaf5f9.1671293108.git.christophe.jaillet@wanadoo.fr

The description of dcc sysfs files is somewhat confusing and not effective.
Rewrite it to be clear.

While at it, also use literal code block for config sysfs examples and
remove redundant examples that are obvious.

Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com>
Acked-by: Souradeep Chowdhury <quic_schowdhu@quicinc.com>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20221230135030.17002-3-bagasdotme@gmail.com

kernel test robot reported htmldocs warnings:

Documentation/ABI/testing/debugfs-driver-dcc:34: WARNING: Unexpected indentation.
Documentation/ABI/testing/debugfs-driver-dcc:34: WARNING: Block quote ends without a blank line; unexpected unindent.

Fix these by fixing numbered list syntax on description of
/sys/kernel/debug/dcc/.../[list-number]/config, including adding blank line
separators as appropriate.

Link: https://lore.kernel.org/linux-doc/202212300426.eMLsZsvA-lkp@intel.com/
Fixes: 4cbe60cf

 ("soc: qcom: dcc: Add driver support for Data Capture and Compare unit(DCC)")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com>
Acked-by: Souradeep Chowdhury <quic_schowdhu@quicinc.com>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20221230135030.17002-2-bagasdotme@gmail.com

The return value from the call to kstrtouint_from_user() is int.
However, the return value is being assigned to
an unsigned int variable 'ret', so making 'ret' an int.

Eliminate the following warning:
./drivers/soc/qcom/dcc.c:815:5-8: WARNING: Unsigned expression compared with zero: ret < 0

Link: https://bugzilla.openanolis.cn/show_bug.cgi?id=3638
Fixes: 4cbe60cf

 ("soc: qcom: dcc: Add driver support for Data Capture and Compare unit(DCC)")
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230106011710.2827-1-yang.lee@linux.alibaba.com

APR should not fail if the service device tree node does not have
the qcom,protection-domain property, since this functionality does
not exist on older platforms such as MSM8916 and MSM8996.

Ignore -EINVAL (returned when the property does not exist) to fix
a regression on 6.2-rc1 that prevents audio from working:

  qcom,apr remoteproc0:smd-edge.apr_audio_svc.-1.-1:
    Failed to read second value of qcom,protection-domain
  qcom,apr remoteproc0:smd-edge.apr_audio_svc.-1.-1:
    Failed to add apr 3 svc

Fixes: 6d7860f5

 ("soc: qcom: apr: Add check for idr_alloc and of_property_read_string_index")
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Reviewed-by: Bjorn Andersson <andersson@kernel.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20221229151648.19839-3-stephan@gerhold.net

The protection domain functionality exists only in SoCs starting from
MSM8998 [1], while the APR bindings are also used on older platforms.

Commit 41288c30 ("ASoC: dt-bindings: qcom,apr: Split services to
shared schema") made the "qcom,protection-domain" required but it
should remain optional to avoid dtbs_check warnings on older platforms,
e.g.:

arch/arm64/boot/dts/qcom/apq8096-db820c.dtb:
  apr: service@3: 'qcom,protection-domain' is a required property
  From schema: Documentation/devicetree/bindings/soc/qcom/qcom,apr.yaml

[1]: https://lore.kernel.org/all/20200312120842.21991-1-sibis@codeaurora.org/

Fixes: 41288c30

 ("ASoC: dt-bindings: qcom,apr: Split services to shared schema")
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Bjorn Andersson <andersson@kernel.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20221229151648.19839-2-stephan@gerhold.net

Since commit fc7a6209

 ("bus: Make remove callback return void")
forces bus_type::remove be void-returned, it doesn't make much sense
for any bus based driver implementing remove callbalk to return
non-void to its caller.

As such, change the remove function for apr bus based drivers to
return void.

Signed-off-by: Dawei Li <set_pte_at@outlook.com>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/TYCP286MB23232B7968D34DB8323B0F16CAFB9@TYCP286MB2323.JPNP286.PROD.OUTLOOK.COM

Add support for new fields coming with socinfo structure under v16 to get
SKU information, product code and name and type of different parts present
in the SoC. Also, add debugfs nodes to read feature and product codes to
allow user to get SKU and other SoC details. Support for SoC parts name
and type parsing will be added separately. Details of fields added:
* feature_code: mapped to qcom internal and external SKU IDs
* pcode: product code
* npartnamemap_offset: parts name map array offset from socinfo base ptr
* nnum_partname_mapping: number of part mappings

Signed-off-by: Naman Jain <quic_namajain@quicinc.com>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20221125103533.2960-1-quic_namajain@quicinc.com

Building ramp_controller under x86_64 results in the following build
error:

error: implicit declaration of function 'FIELD_PREP' is invalid in C99

Include linux/bitfield.h to ensure FIELD_PREP() is declared.

Signed-off-by: Bjorn Andersson <andersson@kernel.org>

Add the entries for all the files added as a part of driver support for
DCC(Data Capture and Compare).

Signed-off-by: Souradeep Chowdhury <quic_schowdhu@quicinc.com>
Reviewed-by: Bjorn Andersson <andersson@kernel.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/d94c11b2c219265d150f71ee726637dd0f58c095.1672148732.git.quic_schowdhu@quicinc.com

The DCC is a DMA Engine designed to capture and store data
during system crash or software triggers. The DCC operates
based on user inputs via the debugfs interface. The user gives
addresses as inputs and these addresses are stored in the
dcc sram. In case of a system crash or a manual software
trigger by the user through the debugfs interface,
the dcc captures and stores the values at these addresses.
This patch contains the driver which has all the methods
pertaining to the debugfs interface, auxiliary functions to
support all the four fundamental operations of dcc namely
read, write, read/modify/write and loop. The probe method
here instantiates all the resources necessary for dcc to
operate mainly the dedicated dcc sram where it stores the
values. The DCC driver can be used for debugging purposes
without going for a reboot since it can perform software
triggers as well based on user inputs.

Also add the documentation for debugfs entries which explains
the functionalities of each debugfs file that has been created
for dcc.

The following is the justification of using debugfs interface
over the other alternatives like sysfs/ioctls

i) As can be seen from the debugfs attribute descriptions,
some of the debugfs attribute files here contains multiple
arguments which needs to be accepted from the user. This goes
against the design style of sysfs.

ii) The user input patterns have been made simple and convenient
in this case with the use of debugfs interface as user doesn't
need to shuffle between different files to execute one instruction
as was the case on using other alternatives.

Signed-off-by: Souradeep Chowdhury <quic_schowdhu@quicinc.com>
Reviewed-by: Alex Elder <elder@linaro.org>
[bjorn: Fixed up a few indents and line wraps]
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/644b4f66a358492a8a6738454035c3b120092fe7.1672148732.git.quic_schowdhu@quicinc.com

Add the device tree bindings for Data Capture and Compare(DCC).

Signed-off-by: Souradeep Chowdhury <quic_schowdhu@quicinc.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Bjorn Andersson <andersson@kernel.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/eb758cbdc7bd0973b3ca154b11fb8db54cde805f.1672148732.git.quic_schowdhu@quicinc.com

Convert the non-SMD RPM node bindings to dt-schema, the old txt bindings
are now removed since all bindings were converted.

Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Acked-by: Lee Jones <lee@kernel.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20221005-mdm9615-pinctrl-yaml-v5-2-910019fb8b9b@linaro.org

The Ramp Controller is used to program the sequence ID for pulse
swallowing, enable sequence and linking sequence IDs for the CPU
cores on some Qualcomm SoCs.

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20221117132956.169432-3-angelogioacchino.delregno@collabora.com

Document the Qualcomm Ramp Controller, found on various legacy
Qualcomm SoCs.

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20221117132956.169432-2-angelogioacchino.delregno@collabora.com

Due to several bugs caused by timers being re-armed after they are
shutdown and just before they are freed, a new state of timers was added
called "shutdown".  After a timer is set to this state, then it can no
longer be re-armed.

The following script was run to find all the trivial locations where
del_timer() or del_timer_sync() is called in the same function that the
object holding the timer is freed.  It also ignores any locations where
the timer->function is modified between the del_timer*() and the free(),
as that is not considered a "trivial" case.

This was created by using a coccinelle script and the following
commands:

    $ cat timer.cocci
    @@
    expression ptr, slab;
    identifier timer, rfield;
    @@
    (
    -       del_timer(&ptr->timer);
    +       timer_shutdown(&ptr->timer);
    |
    -       del_timer_sync(&ptr->timer);
    +       timer_shutdown_sync(&ptr->timer);
    )
      ... when strict
          when != ptr->timer
    (...

Pull spi fix from Mark Brown:
 "One driver specific change here which handles the case where a SPI
  device for some reason tries to change the bus speed during a message
  on fsl_spi hardware, this should be very unusual"

* tag 'spi-fix-v6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
  spi: fsl_spi: Don't change speed while chipselect is active

Merge tag 'regulator-fix-v6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator

Pull regulator fixes from Mark Brown:
 "Two core fixes here, one for a long standing race which some Qualcomm
  systems have started triggering with their UFS driver and another
  fixing a problem with supply lookup introduced by the fixes for devm
  related use after free issues that were introduced in this merge
  window"

* tag 'regulator-fix-v6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
  regulator: core: fix deadlock on regulator enable
  regulator: core: Fix resolve supply lookup issue

Pull coccicheck update from Julia Lawall:
 "Modernize use of grep in coccicheck:

  Use 'grep -E' instead of 'egrep'"

* tag 'coccinelle-6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/jlawall/linux:
  scripts: coccicheck: use "grep -E" instead of "egrep"

Pull kernel hardening fixes from Kees Cook:

 - Fix CFI failure with KASAN (Sami Tolvanen)

 - Fix LKDTM + CFI under GCC 7 and 8 (Kristina Martsenko)

 - Limit CONFIG_ZERO_CALL_USED_REGS to Clang > 15.0.6 (Nathan
   Chancellor)

 - Ignore "contents" argument in LoadPin's LSM hook handling

 - Fix paste-o in /sys/kernel/warn_count API docs

 - Use READ_ONCE() consistently for oops/warn limit reading

* tag 'hardening-v6.2-rc1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
  cfi: Fix CFI failure with KASAN
  exit: Use READ_ONCE() for all oops/warn limit reads
  security: Restrict CONFIG_ZERO_CALL_USED_REGS to gcc or clang > 15.0.6
  lkdtm: cfi: Make PAC test work with GCC 7 and 8
  docs: Fix path paste-o for /sys/kernel/warn_count
  LoadPin: Ignore the "contents" argument of the LSM hooks

Pull pstore fixes from Kees Cook:

 - Switch pmsg_lock to an rt_mutex to avoid priority inversion (John
   Stultz)

 - Correctly assign mem_type property (Luca Stefani)

* tag 'pstore-v6.2-rc1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
  pstore: Properly assign mem_type property
  pstore: Make sure CONFIG_PSTORE_PMSG selects CONFIG_RT_MUTEXES
  pstore: Switch pmsg_lock to an rt_mutex to avoid priority inversion

Pull dma-mapping fixes from Christoph Hellwig:
 "Fix up the sound code to not pass __GFP_COMP to the non-coherent DMA
  allocator, as it copes with that just as badly as the coherent
  allocator, and then add a check to make sure no one passes the flag
  ever again"

* tag 'dma-mapping-2022-12-23' of git://git.infradead.org/users/hch/dma-mapping:
  dma-mapping: reject GFP_COMP for noncoherent allocations
  ALSA: memalloc: don't use GFP_COMP for non-coherent dma allocations

Pull 9p updates from Dominique Martinet:

 - improve p9_check_errors to check buffer size instead of msize when
   possible (e.g. not zero-copy)

 - some more syzbot and KCSAN fixes

 - minor headers include cleanup

* tag '9p-for-6.2-rc1' of https://github.com/martinetd/linux:
  9p/client: fix data race on req->status
  net/9p: fix response size check in p9_check_errors()
  net/9p: distinguish zero-copy requests
  9p/xen: do not memcpy header into req->rc
  9p: set req refcount to zero to avoid uninitialized usage
  9p/net: Remove unneeded idr.h #include
  9p/fs: Remove unneeded idr.h #include