Calvin Owens 1071815989 drm/amd/display: Fix uninitialized variable use which breaks full LTO ... Commit e1b385726f ("drm/amd/display: Add additional checks for PSP footer size") introduced a use of an uninitialized stack variable in dm_dmub_sw_init() (region_params.bss_data_size). Interestingly, this seems to cause no issue on normal kernels. But when full LTO is enabled, it causes the compiler to "optimize" out huge swaths of amdgpu initialization code, and the driver is unusable: amdgpu 0000:03:00.0: [drm] Loading DMUB firmware via PSP: version=0x07002F00 amdgpu 0000:03:00.0: sw_init of IP block <dm> failed 5 amdgpu 0000:03:00.0: amdgpu_device_ip_init failed amdgpu 0000:03:00.0: Fatal error during GPU init It surprises me that neither gcc nor clang emit a warning about this: I only found it by bisecting the LTO breakage. Fix by using the bss_data_size field from fw_meta_info_params, as was presumably intended. Fixes: e1b385726f ("drm/amd/display: Add additional checks for PSP footer size") Signed-off-by: Calvin Owens <calvin@wbinvd.org> Reviewed-by: Harry Wentland <harry.wentland@amd.com> Reviewed-by: Nathan Chancellor <nathan@kernel.org> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> (cherry picked from commit b7f1402f6a)		2026-03-17 12:11:49 -04:00
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drm	drm/amd/display: Fix uninitialized variable use which breaks full LTO	2026-03-17 12:11:49 -04:00
host1x	Convert more 'alloc_obj' cases to default GFP_KERNEL arguments	2026-02-21 20:03:00 -08:00
ipu-v3	Convert 'alloc_obj' family to use the new default GFP_KERNEL argument	2026-02-21 17:09:51 -08:00
nova-core	gpu: nova-core: gsp: fix UB in DmaGspMem pointer accessors	2026-03-11 16:24:15 +01:00
trace
vga	Convert 'alloc_obj' family to use the new default GFP_KERNEL argument	2026-02-21 17:09:51 -08:00
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