Re: [linux-next:master] BUILD REGRESSION 7c4a254d78f89546d0e74a40617ef24c6151c8d1

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Hi,

On 23/03/2023 23:34, kernel test robot wrote:
> tree/branch: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
> branch HEAD: 7c4a254d78f89546d0e74a40617ef24c6151c8d1  Add linux-next specific files for 20230323
> 
> Error/Warning reports:
> 
> https://lore.kernel.org/oe-kbuild-all/202303161521.jbGbaFjJ-lkp@xxxxxxxxx
> https://lore.kernel.org/oe-kbuild-all/202303231302.iY6qIfXA-lkp@xxxxxxxxx
> https://lore.kernel.org/oe-kbuild-all/202303232154.aXOXAWhg-lkp@xxxxxxxxx
> 
> Error/Warning: (recently discovered and may have been fixed)
> 
> drivers/gpu/drm/amd/amdgpu/../display/dc/link/link_validation.c:351:13: warning: variable 'bw_needed' set but not used [-Wunused-but-set-variable]
> drivers/gpu/drm/amd/amdgpu/../display/dc/link/link_validation.c:352:25: warning: variable 'link' set but not used [-Wunused-but-set-variable]
> drivers/net/wireless/legacy/ray_cs.c:628:17: warning: 'strncpy' specified bound 32 equals destination size [-Wstringop-truncation]
> gpio.c:(.init.text+0xec): undefined reference to `of_mm_gpiochip_add_data'
> include/linux/mmzone.h:1749:2: error: #error Allocator MAX_ORDER exceeds SECTION_SIZE
> 
> Unverified Error/Warning (likely false positive, please contact us if interested):

...

> sound/soc/sof/ipc4-pcm.c:391 sof_ipc4_pcm_dai_link_fixup_rate() error: uninitialized symbol 'be_rate'.
> sound/soc/sof/ipc4-topology.c:1132 ipc4_copier_set_capture_fmt() error: uninitialized symbol 'sample_valid_bits'.

These are false positives, the copier which is used in these functions
always have input and output side, the be_rate will be initialized:
https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/tree/sound/soc/sof/ipc4-pcm.c#n485
on the first iteration.

the sample_valid_bits will be initialized:
https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/tree/sound/soc/sof/ipc4-topology.c#n1310
on the first iteration.

-- 
-- 
Péter




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