block: Catch possible entries missing from blk_queue_flag_name[]

Assert that we are not missing flag entries in blk_queue_flag_name[].

Signed-off-by: John Garry <john.g.garry@oracle.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Link: https://lore.kernel.org/r/20240719112912.3830443-9-john.g.garry@oracle.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>

diff --git a/block/blk-mq-debugfs.c b/block/blk-mq-debugfs.c
index 866e8c6bebd07e5687c16e81f3d740e0d5b7e100..d28784c1957f287003f3c83d2517ee32e3e0e493 100644 (file)
--- a/block/blk-mq-debugfs.c
+++ b/block/blk-mq-debugfs.c
@@ -5,6 +5,7 @@
 
 #include <linux/kernel.h>
 #include <linux/blkdev.h>
+#include <linux/build_bug.h>
 #include <linux/debugfs.h>
 
 #include "blk.h"
@@ -99,6 +100,7 @@ static int queue_state_show(void *data, struct seq_file *m)
 {
        struct request_queue *q = data;
 
+       BUILD_BUG_ON(ARRAY_SIZE(blk_queue_flag_name) != QUEUE_FLAG_MAX);
        blk_flags_show(m, q->queue_flags, blk_queue_flag_name,
                       ARRAY_SIZE(blk_queue_flag_name));
        seq_puts(m, "\n");