From: John Garry <john.g.garry@oracle.com>
Date: Fri, 19 Jul 2024 11:29:05 +0000 (+0000)
Subject: block: Catch possible entries missing from blk_queue_flag_name[]
X-Git-Tag: for-6.11/block-20240722~10
X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=cce496de061d09794825b7c7c7d57faca4772d82;p=linux-block.git

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 866e8c6bebd0..d28784c1957f 100644
--- 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");