From: Alex Deucher Date: Mon, 11 Feb 2019 21:49:47 +0000 (-0500) Subject: drm/amdgpu: don't clamp debugfs register access to the BAR size X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=7a5e0d9ab6d9564f5f82d7a16355118aadd25ef8;p=linux.git drm/amdgpu: don't clamp debugfs register access to the BAR size This prevents us from accessing extended registers in tools like umr. The register access functions already check if the offset is beyond the BAR size and use the indirect accessors with locking so this is safe. Reviewed-by: Christian König Signed-off-by: Alex Deucher --- diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c index dd9a4fb9ce39b..4ae3ff9a1d4c9 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c @@ -158,9 +158,6 @@ static int amdgpu_debugfs_process_reg_op(bool read, struct file *f, while (size) { uint32_t value; - if (*pos > adev->rmmio_size) - goto end; - if (read) { value = RREG32(*pos >> 2); r = put_user(value, (uint32_t *)buf);