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authorJohn Garry <john.g.garry@oracle.com>2024-07-19 11:29:06 +0000
committerJens Axboe <axboe@kernel.dk>2024-07-19 09:32:49 -0600
commit23827310cce7eff3477aeaeb59ea3718f5c9c633 (patch)
treef6e24c466ec0215c3f3fcd5293b10ed201bdbcf9 /block
parentcce496de061d09794825b7c7c7d57faca4772d82 (diff)
block: Catch possible entries missing from hctx_state_name[]
Add a build-time assert that we are not missing entries from hctx_state_name[]. For this, create a separate enum for state flags and add a "max" entry for BLK_MQ_S_x flags. The numbering for those enum values is as default, so don't explicitly number. Signed-off-by: John Garry <john.g.garry@oracle.com> Link: https://lore.kernel.org/r/20240719112912.3830443-10-john.g.garry@oracle.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block')
-rw-r--r--block/blk-mq-debugfs.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/block/blk-mq-debugfs.c b/block/blk-mq-debugfs.c
index d28784c1957f..85be8aa39b90 100644
--- a/block/blk-mq-debugfs.c
+++ b/block/blk-mq-debugfs.c
@@ -165,6 +165,7 @@ static int hctx_state_show(void *data, struct seq_file *m)
{
struct blk_mq_hw_ctx *hctx = data;
+ BUILD_BUG_ON(ARRAY_SIZE(hctx_state_name) != BLK_MQ_S_MAX);
blk_flags_show(m, hctx->state, hctx_state_name,
ARRAY_SIZE(hctx_state_name));
seq_puts(m, "\n");