For each loop add a local f2fs_sb_info pointer insted of looking it up.
Signed-off-by: Yangtao Li <frank.li@vivo.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Export ipu_policy as a string in debugfs for better readability and
it can help us better understand some strategies of the file system.
Signed-off-by: Yangtao Li <frank.li@vivo.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Include the second VLAN HLEN into account when computing the maximum
MTU size as other drivers do.
Fixes: fabf1bce10 ("ixgbe: Prevent unsupported configurations with XDP")
Signed-off-by: Jason Xing <kernelxing@tencent.com>
Reviewed-by: Alexander Duyck <alexanderduyck@fb.com>
Tested-by: Chandan Kumar Rout <chandanx.rout@intel.com> (A Contingent Worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Include the second VLAN HLEN into account when computing the maximum
MTU size as other drivers do.
Fixes: 0c8493d90b ("i40e: add XDP support for pass and drop actions")
Signed-off-by: Jason Xing <kernelxing@tencent.com>
Reviewed-by: Alexander Duyck <alexanderduyck@fb.com>
Tested-by: Chandan Kumar Rout <chandanx.rout@intel.com> (A Contingent Worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Recently I encountered one case where I cannot increase the MTU size
directly from 1500 to a much bigger value with XDP enabled if the
server is equipped with IXGBE card, which happened on thousands of
servers in production environment. After applying the current patch,
we can set the maximum MTU size to 3K.
This patch follows the behavior of changing MTU as i40e/ice does.
References:
[1] commit 23b44513c3 ("ice: allow 3k MTU for XDP")
[2] commit 0c8493d90b ("i40e: add XDP support for pass and drop actions")
Fixes: fabf1bce10 ("ixgbe: Prevent unsupported configurations with XDP")
Signed-off-by: Jason Xing <kernelxing@tencent.com>
Reviewed-by: Alexander Duyck <alexanderduyck@fb.com>
Tested-by: Chandan Kumar Rout <chandanx.rout@intel.com> (A Contingent Worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Merge series from Dhruva Gole <d-gole@ti.com>:
* Reset the CMD_CTRL Register, without which read/writes in STIG mode
were failing in some cases. The issue came to light while using STIG
Mode for small reads.
* Also add a flag that can allow us to do direct reads but distinguish
direct writes, thus enabling us to disable writes in DAC mode in some
cases that require it. (Like to write to some connected Flash registers)
* Fix register reads in STIG mode and also use STIG mode while reading flash
registers.
Currently if you try to read a register while in STIG mode there is no
support for ADDR and thus naturally a register never gets read from the
flash.
This patch series has been tested on a TI AM625-SK-EVM with both a quad
spi nor flash (s25hs) and OSPI NOR Flash (s28hs).
Output of ltp-ddt test, "DD_RW_ERASESIZE_UBIFS" run with s25hs512t flash:
...
[ 2.334068] spi-nor spi0.0: s25hs512t (65536 Kbytes)
[ 2.339185] 7 fixed-partitions partitions found on MTD device
fc40000.spi.0
[ 2.346158] Creating 7 MTD partitions on "fc40000.spi.0":
[ 2.351555] 0x000000000000-0x000000080000 : "ospi.tiboot3"
[ 2.358344] 0x000000080000-0x000000280000 : "ospi.tispl"
[ 2.364788] 0x000000280000-0x000000680000 : "ospi.u-boot"
[ 2.371311] 0x000000680000-0x0000006c0000 : "ospi.env"
[ 2.377519] 0x0000006c0000-0x000000700000 : "ospi.env.backup"
[ 2.384419] 0x000000800000-0x000003fc0000 : "ospi.rootfs"
[ 2.390890] 0x000003fc0000-0x000004000000 : "ospi.phypattern"
..snip..
Test Start Time: Wed Jan 11 21:14:31 2023
-----------------------------------------
Testcase Result Exit Value
-------- ------ ----------
OSPI_S_FUNC_DD_RW_ERASESIZE_UBIFS PASS 0
-----------------------------------------------
Total Tests: 1
Total Skipped Tests: 0
Total Failures: 0
Kernel Version: 6.2.0-rc1-00040-g700d796a94e0-dirty
Machine Architecture: aarch64
Hostname: am62xx-evm
Merge series from Peter Ujfalusi <peter.ujfalusi@linux.intel.com>:
The following series will enable the the Low Power Audio (LPA)
playback on Intel platforms when using IPC4.
The support is closely follows how IPC3 supports similar use case.
All depending patches are upstream and our CI have been testing
this feature for some time without issues.
Chimera Linux is a Linux distribution from 2021 that builds its kernels
with Clang.
Google transitioned its data center fleet to run Clang built kernels in
2021, and Meta did so as well in 2022. Meta talked about this at LPC
2022 at a talk titled Kernel Live Patching at Scale.
These were important milestones for building the kernel with Clang.
Making note of them helps improve confidence in the project.
Reviewed-by: Tom Rix <trix@redhat.com>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Sedat Dilek <sedat.dilek@gmail.com>
Co-developed-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Currently, setlocalversion uses any annotated tag for git-describe.
If we are at a tagged commit, it will not append the commit hash.
$ git checkout v6.2-rc1^
$ make -s defconfig kernelrelease
6.1.0-14595-g292a089d78d3
$ git tag -a foo -m foo
$ make -s kernelrelease
6.1.0
If a local tag 'foo' exists, it pretends to be a released version
'6.1.0', while there are many commits on top of it.
The output should be consistent irrespective of such a local tag.
Pass the correct release tag to --match option of git-describe.
In the mainline kernel, the SUBLEVEL is always '0', which is omitted
from the tag.
KERNELVERSION annotated tag
6.1.0 -> v6.1 (mainline)
6.2.0-rc5 -> v6.2-rc5 (mainline, release candidate)
6.1.7 -> v6.1.7 (stable)
To preserve the behavior in linux-next, use the tag derived from
localversion* files if exists. In linux-next, the local version is
specified by the localversion-next file.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
The Qualcomm PCI bridge device (Device ID 0x010e) found in chipsets such as
SC8280XP used in Lenovo Thinkpad X13s, does not set the Command Completed
bit unless writes to the Slot Command register change "Control" bits.
This results in timeouts like below during boot and resume from suspend:
pcieport 0002:00:00.0: pciehp: Timeout on hotplug command 0x03c0 (issued 2020 msec ago)
...
pcieport 0002:00:00.0: pciehp: Timeout on hotplug command 0x13f1 (issued 107724 msec ago)
Add the device to the Command Completed quirk to mark commands "completed"
immediately unless they change the "Control" bits.
Link: https://lore.kernel.org/r/20230213144922.89982-1-manivannan.sadhasivam@linaro.org
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
IPQ8074 has one Gen2 and one Gen3 port, with Gen2 port already supported.
Add compatible for Gen3 port which uses the same controller as IPQ6018.
Link: https://lore.kernel.org/r/20230113164449.906002-7-robimarko@gmail.com
Signed-off-by: Robert Marko <robimarko@gmail.com>
Signed-off-by: Lorenzo Pieralisi <lpieralisi@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
IPQ8074 has one Gen2 and one Gen3 PCIe port, with Gen2 already supported.
Document Gen3 port which uses the same controller as IPQ6018.
Link: https://lore.kernel.org/r/20230113164449.906002-6-robimarko@gmail.com
Signed-off-by: Robert Marko <robimarko@gmail.com>
Signed-off-by: Lorenzo Pieralisi <lpieralisi@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Sort the compatibles list alphabetically for maintenance.
Link: https://lore.kernel.org/r/20230113164449.906002-5-robimarko@gmail.com
Signed-off-by: Robert Marko <robimarko@gmail.com>
Signed-off-by: Lorenzo Pieralisi <lpieralisi@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Implement the new host_deinit() callback so that the PHY is powered off
and regulators and clocks are disabled also on late host-init errors.
Link: https://lore.kernel.org/r/20221017114705.8277-2-johan+linaro@kernel.org
Fixes: 82a823833f ("PCI: qcom: Add Qualcomm PCIe controller driver")
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lpieralisi@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Manivannan Sadhasivam <mani@kernel.org>
Add bindings for two PCIe hosts on SM8350 platform. The only difference
between them is in the aggre0 clock, which warrants the oneOf clause for
the clocks properties.
Link: https://lore.kernel.org/r/20221118233242.2904088-2-dmitry.baryshkov@linaro.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Lorenzo Pieralisi <lpieralisi@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Rob Herring <robh@kernel.org>
qcom,perst-regs is an phandle array of one item with a phandle and its
arguments.
Link: https://lore.kernel.org/r/20221109113202.74406-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Lorenzo Pieralisi <lpieralisi@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Acked-by: Manivannan Sadhasivam <mani@kernel.org>
MSM8996 and MSM8998 use the same clocks, so use one order to make the
binding simpler.
Link: https://lore.kernel.org/r/20230106081203.14118-3-krzysztof.kozlowski@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Rob Herring <robh@kernel.org>
Add new compatible for MSM8998 (compatible with MSM8996) to allow further
customizing if needed and to accurately describe the hardware.
Link: https://lore.kernel.org/r/20230106081203.14118-2-krzysztof.kozlowski@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Rob Herring <robh@kernel.org>
Add a missing NULL pointer check to the cpufreq drver for Qualcomm
platforms (Manivannan Sadhasivam).
-----BEGIN PGP SIGNATURE-----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=378m
-----END PGP SIGNATURE-----
Merge tag 'pm-6.2-rc9' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fix from Rafael Wysocki:
"Add a missing NULL pointer check to the cpufreq drver for Qualcomm
platforms (Manivannan Sadhasivam)"
* tag 'pm-6.2-rc9' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
cpufreq: qcom-hw: Add missing null pointer check
Clean up config files by:
- removing configs that were deleted in the past
- removing configs not in tree and without recently pending patches
- adding new configs that are replacements for old configs in the file
For some detailed information, see Link.
Link: https://lore.kernel.org/kernel-janitors/20220929090645.1389-1-lukas.bulwahn@gmail.com/
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Signed-off-by: Matt Turner <mattst88@gmail.com>
Previously, R_ALPHA_LITERAL relocations would overflow for large kernel
modules.
This was because the Alpha's apply_relocate_add was relying on the kernel's
module loader to have sorted the GOT towards the very end of the module as it
was mapped into memory in order to correctly assign the global pointer. While
this behavior would mostly work fine for small kernel modules, this approach
would overflow on kernel modules with large GOT's since the global pointer
would be very far away from the GOT, and thus, certain entries would be out of
range.
This patch fixes this by instead using the Tru64 behavior of assigning the
global pointer to be 32KB away from the start of the GOT. The change made
in this patch won't work for multi-GOT kernel modules as it makes the
assumption the module only has one GOT located at the beginning of .got,
although for the vast majority kernel modules, this should be fine. Of the
kernel modules that would previously result in a relocation error, none of
them, even modules like nouveau, have even come close to filling up a single
GOT, and they've all worked fine under this patch.
Signed-off-by: Edward Humes <aurxenon@lunos.org>
Signed-off-by: Matt Turner <mattst88@gmail.com>
Add a space after ','.
Add spaces around the '=', '>' and '=='.
Signed-off-by: Zhang Jiaming <jiaming@nfschina.com>
Signed-off-by: Matt Turner <mattst88@gmail.com>
Reference to other arch likes x86_64 or arm64 to do this replacement.
To solve compile error when using NR_syscalls in kernel[1].
[1] https://lore.kernel.org/all/202203270449.WBYQF9X3-lkp@intel.com/
Signed-off-by: Yang Yang <yang.yang29@zte.com.cn>
Signed-off-by: Matt Turner <mattst88@gmail.com>
Remove a number of asm headers locally redirected to the respective
generic or generated versions.
For asm-offsets.h all that is needed is a Kbuild entry for the generic
version, and for div64.h, irq_regs.h and kdebug.h nothing is needed as
in their absence they will be redirected automatically according to
include/asm-generic/Kbuild.
Signed-off-by: Maciej W. Rozycki <macro@orcam.me.uk>
Signed-off-by: Matt Turner <mattst88@gmail.com>
To follow the existing per-arch conventions replace open-coded use
of asm "$30" as "current_stack_pointer". This will let it be used in
non-arch places (like HARDENED_USERCOPY).
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: "Peter Zijlstra (Intel)" <peterz@infradead.org>
Cc: Kefeng Wang <wangkefeng.wang@huawei.com>
Cc: "Alexander A. Klimov" <grandmaster@al2klimov.de>
Cc: linux-alpha@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Matt Turner <mattst88@gmail.com>
Return value from __hw_perf_event_init() directly instead
of taking this in another redundant variable.
Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: Minghao Chi <chi.minghao@zte.com.cn>
Signed-off-by: CGEL ZTE <cgel.zte@gmail.com>
Signed-off-by: Matt Turner <mattst88@gmail.com>
Calling the osf_mount system call with an invalid typenr value will
spam the kernel log with error messages. Reduce the spamming by making
it a ratelimited printk. Issue found when exercising with the stress-ng
enosys system call stressor.
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Signed-off-by: Matt Turner <mattst88@gmail.com>
predictions bug. When running in SMT mode and one of the sibling threads
transitions out of C0 state, the other thread gets access to twice as many
entries in the RSB, but unfortunately the predictions of the now-halted
logical processor are not purged. Therefore, the executing processor
could speculatively execute from locations that the now-halted processor
had trained the RSB on.
The Spectre v2 mitigations cover the Linux kernel, as it fills the RSB
when context switching to the idle thread. However, KVM allows a VMM to
prevent exiting guest mode when transitioning out of C0 using the
KVM_CAP_X86_DISABLE_EXITS capability can be used by a VMM to change this
behavior. To mitigate the cross-thread return address predictions bug,
a VMM must not be allowed to override the default behavior to intercept
C0 transitions.
These patches introduce a KVM module parameter that, if set, will prevent
the user from disabling the HLT, MWAIT and CSTATE exits.
-----BEGIN PGP SIGNATURE-----
iQFIBAABCAAyFiEE8TM4V0tmI4mGbHaCv/vSX3jHroMFAmPrvAAUHHBib256aW5p
QHJlZGhhdC5jb20ACgkQv/vSX3jHroMQAgf8CirL+yrngzQ+39UTFQgXj3IS1UyR
o2mF39w3bVlQhLNf5MBHF965FUeOV/8A16x73hJGjhiiuisphtQWS/6xKR6uYbq7
0Qi821skqN6XpRsWTWqFHMsdY+n0skr8QeXG4k/GJu7Ghb3tqs4eTGgnf2WBfI8/
K1UgTmjd9+ikM5gKZoVLpcqZnti0gx3lM+cvZGdfrIUaXB+i+hNd2NfRTiGsTOiK
fX7vZtLvOeje2TPoKLhzekTbh8kTU07HRWID9aVXT8bLy6Zd6tg2CHlv11noKpwv
DFVV+RsJ1SiAQYSwT+4IvWfIG4oq4onBQ972g2a27pP2cxF+38GXzt4NQw==
=xscg
-----END PGP SIGNATURE-----
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm fixes from Paolo Bonzini:
"Certain AMD processors are vulnerable to a cross-thread return address
predictions bug. When running in SMT mode and one of the sibling
threads transitions out of C0 state, the other thread gets access to
twice as many entries in the RSB, but unfortunately the predictions of
the now-halted logical processor are not purged. Therefore, the
executing processor could speculatively execute from locations that
the now-halted processor had trained the RSB on.
The Spectre v2 mitigations cover the Linux kernel, as it fills the RSB
when context switching to the idle thread. However, KVM allows a VMM
to prevent exiting guest mode when transitioning out of C0 using the
KVM_CAP_X86_DISABLE_EXITS capability can be used by a VMM to change
this behavior. To mitigate the cross-thread return address predictions
bug, a VMM must not be allowed to override the default behavior to
intercept C0 transitions.
These patches introduce a KVM module parameter that, if set, will
prevent the user from disabling the HLT, MWAIT and CSTATE exits"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
Documentation/hw-vuln: Add documentation for Cross-Thread Return Predictions
KVM: x86: Mitigate the cross-thread return address predictions bug
x86/speculation: Identify processors vulnerable to SMT RSB predictions
Convert Qualcomm G-Link RPM edge binding to DT schema. Move it to
remoteproc as it better suits the purpose - communication channel with
remote processor.
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/20230208101545.45711-6-krzysztof.kozlowski@linaro.org
Correct CDSP and MPSS power domains to match what is used in DTS and the
Linux driver:
sm8550-mtp.dtb: remoteproc@32300000: power-domain-names: ['cx', 'mxc', 'nsp'] is too long
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Neil Armstrong <neil.armstrong@linaro.org>
Fixes: 084258d607 ("dt-bindings: remoteproc: qcom: adsp: document sm8550 adsp, cdsp & mpss compatible")
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230206193313.30667-1-krzysztof.kozlowski@linaro.org
This documents the aDSP, cDSP and MPSS DSPs present
on the SM6115 SoC.
Signed-off-by: Bhupesh Sharma <bhupesh.sharma@linaro.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230128053504.2099620-2-bhupesh.sharma@linaro.org
Among the subsystems in the Qualcomm sm6115 platform we find
audio, compute and modem DSPs.
Add support for controlling these using the peripheral
authentication service (PAS) remoteproc driver.
Signed-off-by: Bhupesh Sharma <bhupesh.sharma@linaro.org>
Reviewed-by: Mukesh Ojha <quic_mojha@quicinc.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230128053504.2099620-1-bhupesh.sharma@linaro.org
The minidump table in the toc contains physical addresses that may lie
before the physical address of the first elf segment in relocatable
images. This change adds a custom dump function for minidumps which
calculates the offset into the carveout region using the start of
the physical address instead of the start of the first elf segment.
Signed-off-by: Yogesh Lal <quic_ylal@quicinc.com>
Reviewed-by: Sibi Sankar <quic_sibis@quicinc.com>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/1667409129-6254-1-git-send-email-quic_ylal@quicinc.com
Reportedly, clang cannot do interprocedural analysis:
https://lore.kernel.org/r/20230213-amd64_edac-wsometimes-uninitialized-v1-1-5bde32b89e02@kernel.org
and see that those arguments won't be used uninitialized.
So, yeah, the code's fine even without this. Normally, such a "fix"
won't be applied but that warning gets automatically enabled in -Wall
builds and when CONFIG_WERROR is set in allmodconfig builds, the build
fails.
So shut it up with a minimal fix as this code will see more
reorganization very soon.
[ bp: Write commit message. ]
Signed-off-by: Yazen Ghannam <yazen.ghannam@amd.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Link: https://lore.kernel.org/r/Y%2BqdVHidnrrKvxiD@dev-arch.thelio-3990X
When device_hmem.o is enabled but dax itself is a loadable module, the
dax_hmem support fails to link because Kbuild never compiles built-in
code under drivers/dax:
ERROR: modpost: "walk_hmem_resources" [drivers/dax/hmem/dax_hmem.ko] undefined!
Make sure that drivers/dax is entered for compiling built-in code
even with CONFIG_DAX=m.
Fixes: 7dab174e2e ("dax/hmem: Move hmem device registration to dax_hmem.ko")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20230214131913.1431969-1-arnd@kernel.org
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
There is already a dependency on CXL_REGION, which depends on CXL_BUS,
but since CXL_REGION is a 'bool' symbol, it's possible to configure
DAX as built-in even though CXL itself is a loadable module:
x86_64-linux-ld: drivers/dax/cxl.o: in function `cxl_dax_region_probe':
cxl.c:(.text+0xb): undefined reference to `to_cxl_dax_region'
x86_64-linux-ld: drivers/dax/cxl.o: in function `cxl_dax_region_driver_init':
cxl.c:(.init.text+0x10): undefined reference to `__cxl_driver_register'
x86_64-linux-ld: drivers/dax/cxl.o: in function `cxl_dax_region_driver_exit':
cxl.c:(.exit.text+0x9): undefined reference to `cxl_driver_unregister'
Prevent this with another depndency on the tristate symbol.
Fixes: 09d09e04d2 ("cxl/dax: Create dax devices for CXL RAM regions")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20230214103054.1082908-1-arnd@kernel.org
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
The new cxl_add_to_region() function returns an uninitialized
value on success:
drivers/cxl/core/region.c:2628:6: error: variable 'rc' is used uninitialized whenever 'if' condition is false [-Werror,-Wsometimes-uninitialized]
if (IS_ERR(cxlr)) {
^~~~~~~~~~~~
drivers/cxl/core/region.c:2654:9: note: uninitialized use occurs here
return rc;
Simplify the logic to have the rc variable always initialized in the
same place.
Fixes: a32320b71f ("cxl/region: Add region autodiscovery")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20230213101220.3821689-1-arnd@kernel.org
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Since, there is no guarantee that region.name will be 0-terminated
from the firmware side, replace kstrdup with kstrndup.
Suggested-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Mukesh Ojha <quic_mojha@quicinc.com>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/1676383691-29738-1-git-send-email-quic_mojha@quicinc.com
During removal of the glink edge interrupts are disabled and no more
incoming messages are being serviced. In addition to the remote endpoint
being defunct that means that any outstanding requests for intents will
not be serviced, and qcom_glink_request_intent() will blindly wait for
up to 10 seconds.
Mark the intent request as not granted and complete the intent request
completion to fail the waiting client immediately.
Once the current intent request is failed, any potential clients waiting
for the intent request mutex will not enter the same wait, as the
qcom_glink_tx() call will fail fast.
Reviewed-by: Chris Lew <quic_clew@quicinc.com>
Signed-off-by: Bjorn Andersson <quic_bjorande@quicinc.com>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230213155215.1237059-7-quic_bjorande@quicinc.com
Upon removing the glink edge, communication is at best one-way. This
means that the very common scenario of glink requesting intents will not
be possible to serve.
Typically a successful transmission results in the client waiting for a
response, with some timeout and a mechanism for aborting that timeout.
Because of this, once the glink edge is defunct once removal is
commenced it's better to fail transmissions fast.
Reviewed-by: Chris Lew <quic_clew@quicinc.com>
Signed-off-by: Bjorn Andersson <quic_bjorande@quicinc.com>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230213155215.1237059-6-quic_bjorande@quicinc.com
Not all GLINK transports uses an interrupt and a mailbox instance. The
interrupt for RPM needs to be IRQF_NOSUSPEND, while it seems reasonable
for the SMEM interrupt to use irq_set_wake. The glink struct device is
constructed in the SMEM and RPM drivers but torn down in the core
driver.
Move the interrupt and kick handling into the SMEM and RPM driver, to
improve this and facilitate further improvements.
Signed-off-by: Bjorn Andersson <quic_bjorande@quicinc.com>
Reviewed-by: Chris Lew <quic_clew@quicinc.com>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230213155215.1237059-5-quic_bjorande@quicinc.com
As with the SMEM driver update, wrap the RPM context in a struct to
facilitate the upcoming changes of moving IRQ and mailbox registration
to the driver.
Reviewed-by: Chris Lew <quic_clew@quicinc.com>
Signed-off-by: Bjorn Andersson <quic_bjorande@quicinc.com>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230213155215.1237059-4-quic_bjorande@quicinc.com
The Glink SMEM driver allocates a struct device and hangs two
devres-allocated pipe objects thereon. To facilitate the move of
interrupt and mailbox handling to the driver, introduce a wrapper object
capturing the device, glink reference and remote processor id.
The type of the remoteproc reference is updated, as these are
specifically targeting the SMEM implementation.
Signed-off-by: Bjorn Andersson <quic_bjorande@quicinc.com>
Reviewed-by: Chris Lew <quic_clew@quicinc.com>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230213155215.1237059-3-quic_bjorande@quicinc.com
Yangtao Li