[PATCH 1/6] amdgpu: a NULL ->mm does not mean a thread is a kthread

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Use the proper API instead.

Fixes: 70539bd795002 ("drm/amd: Update MEC HQD loading code for KFD")
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h
index 13feb313e9b3..4db143c19dcc 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h
@@ -190,7 +190,7 @@ uint8_t amdgpu_amdkfd_get_xgmi_hops_count(struct kgd_dev *dst, struct kgd_dev *s
 			pagefault_disable();				\
 			if ((mmptr) == current->mm) {			\
 				valid = !get_user((dst), (wptr));	\
-			} else if (current->mm == NULL) {		\
+			} else if (current->flags & PF_KTHREAD) {	\
 				use_mm(mmptr);				\
 				valid = !get_user((dst), (wptr));	\
 				unuse_mm(mmptr);			\
-- 
2.25.1





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