kernel/linux
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ synced 2026-11-13 07:31:07 +00:00
Code Issues Releases Packages Activity
linux/drivers/gpu
History
Srinivasan Shanmugam a782576e28 drm/amdgpu: Drop unreachable return in amdgpu_reg_get_smn_base64() 
amdgpu_reg_get_smn_base64() returns from all control-flow paths inside
the !adev->reg.smn.get_smn_base fallback path.

For version == 1, the function returns the base address from
amdgpu_reg_smn_v1_0_get_base(). For all other versions, the default
switch branch emits a dev_err_once() and returns 0.

The trailing return 0 after the switch is therefore unreachable and is
reported by Smatch as dead code:

  drivers/gpu/drm/amd/amdgpu/amdgpu_reg_access.c:317
  amdgpu_reg_get_smn_base64() warn: ignoring unreachable code

Remove the redundant return statement.

Fixes: 467ebfe65f ("drm/amdgpu: Add smn callbacks to register block")
Cc: Dan Carpenter <dan.carpenter@linaro.org>
Cc: Lijo Lazar <lijo.lazar@amd.com>
Cc: Hawking Zhang <Hawking.Zhang@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Christian König <christian.koenig@amd.com>
Signed-off-by: Srinivasan Shanmugam <srinivasan.shanmugam@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
History 2026-03-17 10:45:39 -04:00
..
drm drm/amdgpu: Drop unreachable return in amdgpu_reg_get_smn_base64() 2026-03-17 10:45:39 -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 Driver core changes for 7.0-rc1 2026-02-11 17:43:59 -08:00
tests gpu/tests/gpu_buddy: Add gpu_test_buddy_alloc_range for exact-range allocation 2026-03-09 13:58:12 +05:30
trace gpu/trace: make TRACE_GPU_MEM configurable 2025-07-08 09:34:47 -07:00
vga Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
buddy.c drm/buddy: Improve offset-aligned allocation handling 2026-03-09 12:36:10 +05:30
Kconfig gpu: Move DRM buddy allocator one level up (part two) 2026-02-06 11:38:35 +10:00
Makefile gpu: Fix uninitialized buddy for built-in drivers 2026-02-24 13:40:59 +10:00