On 12-May-26 9:17 PM, Pan, Ellen wrote:
AMD General
Reviewed-by: Ellen Pan
Thanks for the review.
On a second check, the original issue was introduced with
7055e5157742 ("drm/amdgpu: New interface to get IP discovery binary v3")
Will update the tag before committing the change.
Thanks,
Lijo
-Original Message-
From: Lazar, Lijo
Sent: Tuesday, May 12, 2026 11:09 AM
To: [email protected]
Cc: Zhang, Hawking ; Deucher, Alexander
; Pan, Ellen
Subject: [PATCH] drm/amdgpu: Fix discovery offset check under VF
Discovery table may be kept at offset 0 by host driver. Remove the validation
check.
Fixes: b69911681fd5 ("drm/amdgpu: fallback to default discovery offset/size in sriov
guest")
Signed-off-by: Lijo Lazar
---
drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c
b/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c
index bbb807a16a50..8e3b6a4050e9 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c
@@ -305,7 +305,7 @@ static int amdgpu_discovery_get_tmr_info(struct
amdgpu_device *adev,
adev->virt.crit_regn_tbl[AMD_SRIOV_MSG_IPD_TABLE_ID].offset;
adev->discovery.size =
adev->virt.crit_regn_tbl[AMD_SRIOV_MSG_IPD_TABLE_ID].size_kb << 10;
- if (!adev->discovery.offset || !adev->discovery.size)
+ if (!adev->discovery.size)
return -EINVAL;
} else {
goto out;
--
2.49.0
