Hi Dave, On Tue, 4 Oct 2022 12:24:37 +1000 David Airlie wrote: > > On Tue, Oct 4, 2022 at 12:21 PM Stephen Rothwell wrote: > > > > On Fri, 30 Sep 2022 11:54:34 +0100 broonie@kernel.org wrote: > > > > > > After merging the drm tree, today's linux-next build (x86_64 > > > allmodconfig) failed like this: > > > > > > /tmp/next/build/drivers/gpu/drm/amd/amdgpu/../display/dc/core/dc_stream.c: In function 'dc_stream_remove_writeback': > > > /tmp/next/build/drivers/gpu/drm/amd/amdgpu/../display/dc/core/dc_stream.c:527:55: error: array subscript [0, 0] is outside array bounds of 'struct dc_writeback_info[1]' [-Werror=array-bounds] > > > 527 | stream->writeback_info[j] = stream->writeback_info[i]; > > > | ~~~~~~~~~~~~~~~~~~~~~~^~~ > > > cc1: all warnings being treated as errors > > > > > > Caused by > > > > > > 5d8c3e836fc224 ("drm/amd/display: fix array-bounds error in dc_stream_remove_writeback()") > > > > > > I have reverted that commit for today. > > > > I am still getting this failure. The full error is: > > > > drivers/gpu/drm/amd/amdgpu/../display/dc/core/dc_stream.c: In function 'dc_stream_remove_writeback': > > drivers/gpu/drm/amd/amdgpu/../display/dc/core/dc_stream.c:527:83: error: array subscript [0, 0] is outside array bounds of 'struct dc_writeback_info[1]' [-Werror=array-bounds] > > 527 | stream->writeback_info[j] = stream->writeback_info[i]; > > | ~~~~~~~~~~~~~~~~~~~~~~^~~ > > In file included from drivers/gpu/drm/amd/amdgpu/../display/dc/dc.h:1269, > > from drivers/gpu/drm/amd/amdgpu/../display/dc/inc/core_types.h:29, > > from drivers/gpu/drm/amd/amdgpu/../display/dc/basics/dc_common.h:29, > > from drivers/gpu/drm/amd/amdgpu/../display/dc/core/dc_stream.c:27: > > drivers/gpu/drm/amd/amdgpu/../display/dc/dc_stream.h:241:34: note: while referencing 'writeback_info' > > 241 | struct dc_writeback_info writeback_info[MAX_DWB_PIPES]; > > | ^~~~~~~~~~~~~~ > > I'm not seeing it here, what gcc is this with? I am using an x86_64 cross compiler hosted on ppc64le - gcc v11.2.0 (on Debian). -- Cheers, Stephen Rothwell