Konsta Hölttä f4cc6bf7b9 gpu: nvgpu: add wrapping_sub_u32 ...

Add nvgpu_wrapping_sub_u32() to perform static analysis safe arithmetic
where unsigned wraparound is expected. nvgpu_safe_sub_u32() expects that
the result does not wrap, so it cannot be used in such cases.

Jira NVGPU-5506

Change-Id: I904bd749da0eb44ad6d5a4f00490eaec7fa55839
Signed-off-by: Konsta Hölttä <kholtta@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2401291
Reviewed-by: automaticguardword <automaticguardword@nvidia.com>
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Alex Waterman <alexw@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
GVS: Gerrit_Virtual_Submit
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

2020-12-15 14:13:28 -06:00

..

gpu

gpu: nvgpu: add wrapping_sub_u32

2020-12-15 14:13:28 -06:00