[PATCH] drm/amdgpu: avoid reading vf2pf info size from FB

Zhigang Luo Zhigang.Luo at amd.com
Tue Apr 30 14:23:56 UTC 2024


VF can't access FB when host is doing mode1 reset. Using sizeof to get
vf2pf info size, instead of reading it from vf2pf header stored in FB.

Signed-off-by: Zhigang Luo <Zhigang.Luo at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c
index 54ab51a4ada7..c84d2217005e 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c
@@ -583,7 +583,7 @@ static int amdgpu_virt_write_vf2pf_data(struct amdgpu_device *adev)
 	}
 	vf2pf_info->checksum =
 		amd_sriov_msg_checksum(
-		vf2pf_info, vf2pf_info->header.size, 0, 0);
+		vf2pf_info, sizeof(struct amd_sriov_msg_vf2pf_info), 0, 0);
 
 	return 0;
 }
-- 
2.25.1



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