Compiling z3fold.c results in several sparse warnings:
z3fold.c:797:21: warning: incorrect type in initializer (different address spaces)
z3fold.c:797:21: expected void const [noderef] __percpu *__vpp_verify
z3fold.c:797:21: got struct list_head *
z3fold.c:852:37: warning: incorrect type in initializer (different address spaces)
z3fold.c:852:37: expected void const [noderef] __percpu *__vpp_verify
z3fold.c:852:37: got struct list_head *
z3fold.c:924:25: warning: incorrect type in assignment (different address spaces)
z3fold.c:924:25: expected struct list_head *unbuddied
z3fold.c:924:25: got void [noderef] __percpu *_res
z3fold.c:930:33: warning: incorrect type in initializer (different address spaces)
z3fold.c:930:33: expected void const [noderef] __percpu *__vpp_verify
z3fold.c:930:33: got struct list_head *
z3fold.c:949:25: warning: incorrect type in argument 1 (different address spaces)
z3fold.c:949:25: expected void [noderef] __percpu *__pdata
z3fold.c:949:25: got struct list_head *unbuddied
z3fold.c:979:25: warning: incorrect type in argument 1 (different address spaces)
z3fold.c:979:25: expected void [noderef] __percpu *__pdata
z3fold.c:979:25: got struct list_head *unbuddied
Add __percpu annotation to *unbuddied pointer to fix these warnings.
Signed-off-by: Uros Bizjak <ubizjak@xxxxxxxxx>
Cc: Vitaly Wool <vitaly.wool@xxxxxxxxxxxx>
Cc: Miaohe Lin <linmiaohe@xxxxxxxxxx>
Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/z3fold.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/z3fold.c b/mm/z3fold.c
index 2ebfed32871b..379d24b4fef9 100644
--- a/mm/z3fold.c
+++ b/mm/z3fold.c
@@ -144,7 +144,7 @@ struct z3fold_pool {
const char *name;
spinlock_t lock;
spinlock_t stale_lock;
- struct list_head *unbuddied;
+ struct list_head __percpu *unbuddied;
struct list_head stale;
atomic64_t pages_nr;
struct kmem_cache *c_handle;
--
2.45.2
