Applied to drm-misc-fixes
On 7/6/26 15:01, Max Zhen wrote:
On 6/15/2026 Mon 23:15, Lizhi Hou wrote:
nr_pages is declared as u32 in amdxdna_hmm_register(), which may not be
large enough to represent the number of pages for large mappings.
Use unsigned long for nr_pages to avoid potential overflow.
Fixes: ac49797c1815 ("accel/amdxdna: Add GEM buffer object management")
Signed-off-by: Lizhi Hou <[email protected]>
Reviewed-by: Max Zhen <[email protected]>> ---
drivers/accel/amdxdna/amdxdna_gem.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/accel/amdxdna/amdxdna_gem.c
b/drivers/accel/amdxdna/amdxdna_gem.c
index aef4c23a1a66..201536aff440 100644
--- a/drivers/accel/amdxdna/amdxdna_gem.c
+++ b/drivers/accel/amdxdna/amdxdna_gem.c
@@ -351,7 +351,7 @@ static int amdxdna_hmm_register(struct
amdxdna_gem_obj *abo,
unsigned long len = vma->vm_end - vma->vm_start;
unsigned long addr = vma->vm_start;
struct amdxdna_umap *mapp;
- u32 nr_pages;
+ unsigned long nr_pages;
int ret;
if (!amdxdna_pasid_on(abo->client)) {
