Sparse reports many warnings of the form:
drivers/md/raid5.c:1476:16: warning: dereference of noderef expression
This is because all struct raid5_percpu definitions get marked as
__percpu when really only the pointer in r5conf should have that
annotation.
Fix this by moving the defnition of raid5_precpu out of the definition
of struct r5conf.
Signed-off-by: Logan Gunthorpe <logang@xxxxxxxxxxxx>
---
drivers/md/raid5.h | 20 +++++++++++---------
1 file changed, 11 insertions(+), 9 deletions(-)
diff --git a/drivers/md/raid5.h b/drivers/md/raid5.h
index 9e8486a9e445..61bc2e1f1b4e 100644
--- a/drivers/md/raid5.h
+++ b/drivers/md/raid5.h
@@ -560,6 +560,16 @@ struct r5pending_data {
struct bio_list bios;
};
+struct raid5_percpu {
+ struct page *spare_page; /* Used when checking P/Q in raid6 */
+ void *scribble; /* space for constructing buffer
+ * lists and performing address
+ * conversions
+ */
+ int scribble_obj_size;
+ local_lock_t lock;
+};
+
struct r5conf {
struct hlist_head *stripe_hashtbl;
/* only protect corresponding hash list and inactive_list */
@@ -635,15 +645,7 @@ struct r5conf {
*/
int recovery_disabled;
/* per cpu variables */
- struct raid5_percpu {
- struct page *spare_page; /* Used when checking P/Q in raid6 */
- void *scribble; /* space for constructing buffer
- * lists and performing address
- * conversions
- */
- int scribble_obj_size;
- local_lock_t lock;
- } __percpu *percpu;
+ struct raid5_percpu __percpu *percpu;
int scribble_disks;
int scribble_sectors;
struct hlist_node node;
--
2.30.2
