6.9-stable review patch. If anyone has any objections, please let me know.
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From: Michal Wajdeczko michal.wajdeczko@intel.com
[ Upstream commit a918e771e6fbe1fa68932af5b0cdf473e23090cc ]
We may leave pat.ops unset when running on brand new platform or when running as a VF. While the former is unlikely, the latter is valid (future) use case and will cause NPD when someone will try to dump PAT settings by debugfs.
It's better to check pointer to pat.ops instead of specific .dump hook, as we have this hook always defined for every .ops variant.
Signed-off-by: Michal Wajdeczko michal.wajdeczko@intel.com Reviewed-by: Piotr Piórkowski piotr.piorkowski@intel.com Link: https://patchwork.freedesktop.org/patch/msgid/20240409105106.1067-2-michal.w... Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/xe/xe_pat.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/xe/xe_pat.c b/drivers/gpu/drm/xe/xe_pat.c index e148934d554b0..351ab902eb600 100644 --- a/drivers/gpu/drm/xe/xe_pat.c +++ b/drivers/gpu/drm/xe/xe_pat.c @@ -457,7 +457,7 @@ void xe_pat_dump(struct xe_gt *gt, struct drm_printer *p) { struct xe_device *xe = gt_to_xe(gt);
- if (!xe->pat.ops->dump) + if (!xe->pat.ops) return;
xe->pat.ops->dump(gt, p);