On 3/26/2024 2:23 PM, Miguel Ojeda wrote:
Clang 14 in an (essentially) defconfig arm64 build for next-20240326
reports [1]:
drivers/gpu/drm/msm/adreno/a6xx_gpu_state.c:843:6: error:
variable 'out' set but not used [-Werror,-Wunused-but-set-variable]
The variable `out` in these functions is meant to compute the `target` of
`CRASHDUMP_READ()`, but in this case only the initial value (`dumper->iova
+ A6XX_CD_DATA_OFFSET`) was being passed.
Thus use `out` as it was intended by Connor [2].
There was an alternative patch at [3] that removed the variable
altogether, but that would only use the initial value.
Fixes: 64d6255650d4 ("drm/msm: More fully implement devcoredump for a7xx")
Closes: https://lore.kernel.org/lkml/CANiq72mjc5t4n25SQvYSrOEhxxpXYPZ4pPzneSJHEnc3qApu2Q@xxxxxxxxxxxxxx/ [1]
Link: https://lore.kernel.org/lkml/CACu1E7HhCKMJd6fixZSPiNAz6ekoZnkMTHTcLFVmbZ-9VoLxKg@xxxxxxxxxxxxxx/ [2]
Link: https://lore.kernel.org/lkml/20240307093727.1978126-1-colin.i.king@xxxxxxxxx/ [3]
Signed-off-by: Miguel Ojeda <ojeda@xxxxxxxxxx>
---
LGTM,
Reviewed-by: Abhinav Kumar <quic_abhinavk@xxxxxxxxxxx>
