openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

radeon: hide pointless #warning when compile testing 

In randconfig testing, we sometimes get this warning:

drivers/gpu/drm/radeon/radeon_object.c: In function 'radeon_bo_create':
drivers/gpu/drm/radeon/radeon_object.c:242:2: error: #warning Please enable CONFIG_MTRR and CONFIG_X86_PAT for better performance thanks to write-combining [-Werror=cpp]
 #warning Please enable CONFIG_MTRR and CONFIG_X86_PAT for better performance \

This is rather annoying since almost all other code produces no build-time
output unless we have found a real bug. We already fixed this in the
amdgpu driver in commit 31bb90f1cd ("drm/amdgpu: shut up #warning for
compile testing") by adding a CONFIG_COMPILE_TEST check last year and
agreed to do the same here, but both Michel and I then forgot about it
until I came across the issue again now.

For stable kernels, as this is one of very few remaining randconfig
warnings in 4.14.

Cc: stable@vger.kernel.org
Link: https://patchwork.kernel.org/patch/9550009/
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Arnd Bergmann 2018-02-16 16:26:57 +01:00 committed by Alex Deucher
parent ec92937056
commit c02216acf4
1 changed files with 2 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/gpu/drm/radeon/radeon_object.c
View File

@ -234,9 +234,10 @@ int radeon_bo_create(struct radeon_device *rdev,
* may be slow
* See https://bugs.freedesktop.org/show_bug.cgi?id=88758
*/
#ifndef CONFIG_COMPILE_TEST
#warning Please enable CONFIG_MTRR and CONFIG_X86_PAT for better performance \
thanks to write-combining
#endif
if (bo->flags & RADEON_GEM_GTT_WC)
DRM_INFO_ONCE("Please enable CONFIG_MTRR and CONFIG_X86_PAT for "