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| author | David Gow <[email protected]> | 2022-08-11 20:43:26 +0000 |
|---|---|---|
| committer | Alex Deucher <[email protected]> | 2022-08-16 22:17:31 +0000 |
| commit | 6ae0632d17759852c07e2d1e0a31c728eb6ba246 (patch) | |
| tree | c21f4cdc4db24307142714a629dc04e0bb9009fc /drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c | |
| parent | drm/amd/display: Unneeded semicolon (diff) | |
| download | kernel-6ae0632d17759852c07e2d1e0a31c728eb6ba246.tar.gz kernel-6ae0632d17759852c07e2d1e0a31c728eb6ba246.zip | |
drm/amd/display: fix overflow on MIN_I64 definition
The definition of MIN_I64 in bw_fixed.c can cause gcc to whinge about
integer overflow, because it is treated as a positive value, which is
then negated. The temporary positive value is not necessarily
representable.
This causes the following warning:
../drivers/gpu/drm/amd/amdgpu/../display/dc/dml/calcs/bw_fixed.c:30:19:
warning: integer overflow in expression ‘-9223372036854775808’ of type
‘long long int’ results in ‘-9223372036854775808’ [-Woverflow]
30 | (int64_t)(-(1LL << 63))
| ^
Writing out (-MAX_I64 - 1) works instead.
Signed-off-by: David Gow <[email protected]>
Signed-off-by: Tales Aparecida <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c')
0 files changed, 0 insertions, 0 deletions