For compiling with W=1 and allmodconfig, the following warning can be seen:
drivers/md/dm-vdo/vdo.c: In function ‘vdo_make’:
drivers/md/dm-vdo/vdo.c:562:19: error: ‘%s’ directive output may be truncated writing up to 55 bytes into a region of size 16 [-Werror=format-truncation=]
562 | "%s%u", MODULE_NAME, instance);
| ^~
drivers/md/dm-vdo/vdo.c:561:9: note: ‘snprintf’ output between 2 and 66 bytes into a destination of size 16
561 | snprintf(vdo->thread_name_prefix, sizeof(vdo->thread_name_prefix),
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
562 | "%s%u", MODULE_NAME, instance);
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors
Increase MAX_VDO_WORK_QUEUE_NAME_LEN in size to deal with this.
Signed-off-by: John Garry <john.g.garry@xxxxxxxxxx>
---
drivers/md/dm-vdo/funnel-workqueue.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/md/dm-vdo/funnel-workqueue.h b/drivers/md/dm-vdo/funnel-workqueue.h
index b5be6e9e83bc..6307fe811ca0 100644
--- a/drivers/md/dm-vdo/funnel-workqueue.h
+++ b/drivers/md/dm-vdo/funnel-workqueue.h
@@ -11,7 +11,7 @@
#include "types.h"
enum {
- MAX_VDO_WORK_QUEUE_NAME_LEN = TASK_COMM_LEN,
+ MAX_VDO_WORK_QUEUE_NAME_LEN = TASK_COMM_LEN + 41,
};
struct vdo_work_queue_type {
--
2.31.1
