On Tue, Aug 8, 2023 at 3:49 AM Cristian Marussi cristian.marussi@arm.com wrote:

On Tue, Aug 08, 2023 at 11:59:22AM +0530, Naresh Kamboju wrote:

...

LKFT build plans upgraded to clang-17 and found this failure,

While building stable-rc 5.15 arm with clang-17 failed with below warnings and errors.

Build log:

drivers/firmware/arm_scmi/smc.c:39:6: error: duplicate member 'irq' 39 | int irq; | ^ drivers/firmware/arm_scmi/smc.c:34:6: note: previous declaration is here 34 | int irq; | ^ drivers/firmware/arm_scmi/smc.c:118:20: error: use of undeclared identifier 'irq' 118 | scmi_info->irq = irq; | ^ 2 errors generated.

Reported-by: Linux Kernel Functional Testing lkft@linaro.org

Links:

• https://qa-reports.linaro.org/lkft/linux-stable-rc-linux-5.15.y/build/v5.15....
• https://qa-reports.linaro.org/lkft/linux-stable-rc-linux-5.15.y/build/v5.15....

Hi Naresh and Sasha,

so this fix (unluckily) applies cleanly to v5.15 but fails to build since the logic and code around it was different in v5.15.

While looking at backporting it properly, though, I realized that the fix is NOT needed really in v5.15 due to the different context and logic, so I ask you to DROP this fix in v5.15.

What's the SHA of the patch that you are referring to (in linux-5.15.y) that you're suggesting the stable maintainers revert?

I suppose the patch has been automatically applied because the Fixes referred a commit that was on v5.15 too since some of those lines were indeed impacted and were present also in later versions, but the logic around it has changed afterwards, so the original code (up to v5.17) was not really affected by the bug addressed by this fix...only later versions from v5.18 (included) onwards needs it.

Moreover note that the whole SMC ISR logic was introduced in v5.12 (and was good up to v5.17 as said) so v5.15 is really the only stable release that needs to drop this fix.

Thanks and sorry for the noise, Cristian

...

Steps to reproduce: tuxmake --runtime podman --target-arch arm --toolchain clang-17 --kconfig https://storage.tuxsuite.com/public/linaro/lkft/builds/2TeTE3iE8aq4t1kv169Lc... LLVM=1 LLVM_IAS=1

Links: - https://storage.tuxsuite.com/public/linaro/lkft/builds/2TeTE3iE8aq4t1kv169Lc...

-- Linaro LKFT https://lkft.linaro.org

On Tue, Aug 08, 2023 at 04:44:32PM +0100, Sudeep Holla wrote:

On Tue, Aug 08, 2023 at 08:30:30AM -0700, Nick Desaulniers wrote:

...

On Tue, Aug 8, 2023 at 3:49 AM Cristian Marussi cristian.marussi@arm.com wrote:

...

On Tue, Aug 08, 2023 at 11:59:22AM +0530, Naresh Kamboju wrote:

...

LKFT build plans upgraded to clang-17 and found this failure,

While building stable-rc 5.15 arm with clang-17 failed with below warnings and errors.

Build log:

drivers/firmware/arm_scmi/smc.c:39:6: error: duplicate member 'irq' 39 | int irq; | ^ drivers/firmware/arm_scmi/smc.c:34:6: note: previous declaration is here 34 | int irq; | ^ drivers/firmware/arm_scmi/smc.c:118:20: error: use of undeclared identifier 'irq' 118 | scmi_info->irq = irq; | ^ 2 errors generated.

Reported-by: Linux Kernel Functional Testing lkft@linaro.org

Links:

• https://qa-reports.linaro.org/lkft/linux-stable-rc-linux-5.15.y/build/v5.15....
• https://qa-reports.linaro.org/lkft/linux-stable-rc-linux-5.15.y/build/v5.15....

Hi Naresh and Sasha,

so this fix (unluckily) applies cleanly to v5.15 but fails to build since the logic and code around it was different in v5.15.

While looking at backporting it properly, though, I realized that the fix is NOT needed really in v5.15 due to the different context and logic, so I ask you to DROP this fix in v5.15.

What's the SHA of the patch that you are referring to (in linux-5.15.y) that you're suggesting the stable maintainers revert?

8482711670fdfc8f89d437284a6ad159ee88615f Commit 8482711670fd ("firmware: arm_scmi: Fix chan_free cleanup on SMC")

For reference upstream commit d1ff11d7ad87 ("firmware: arm_scmi: Fix chan_free cleanup on SMC")

Note this is only in git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-5.15.y

And not in

git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git linux-5.15.y

Yes, this is a patch that was recently added to the stable queue for 5.15 and it is still pending AFAIU (I suppose since it failed to build once applied).

There is another previous failed build report from yesterday:

https://lore.kernel.org/all/202308070912.4UYUVJVJ-lkp@intel.com/

Thanks, Cristian