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authorLyude Paul <[email protected]>2022-11-14 17:20:45 -0500
committerAlex Deucher <[email protected]>2022-11-23 09:01:53 -0500
commit44035ec2fde1114254ee465f9ba3bb246b0b6283 (patch)
tree71560f107c6dd1b6a2b28a83817644773bc6ebd9 /lib/mpi/mpi-mod.c
parent4f2bea62cf3874c5a58e987b0b472f9fb57117a2 (diff)
drm/amd/dc/dce120: Fix audio register mapping, stop triggering KASAN
There's been a very long running bug that seems to have been neglected for a while, where amdgpu consistently triggers a KASAN error at start: BUG: KASAN: global-out-of-bounds in read_indirect_azalia_reg+0x1d4/0x2a0 [amdgpu] Read of size 4 at addr ffffffffc2274b28 by task modprobe/1889 After digging through amd's rather creative method for accessing registers, I eventually discovered the problem likely has to do with the fact that on my dce120 GPU there are supposedly 7 sets of audio registers. But we only define a register mapping for 6 sets. So, fix this and fix the KASAN warning finally. Signed-off-by: Lyude Paul <[email protected]> Cc: [email protected] Reviewed-by: Alex Deucher <[email protected]> Signed-off-by: Alex Deucher <[email protected]>
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