[PATCH][next] mtdblock: make warning messages ratelimited

[PATCH][next] mtdblock: make warning messages ratelimited

[Colin Ian King]

When exercising various dev interfaces with stress-ng the mtdblock drivers
can be (ab)used to generate a lot of warning messages. Make these rate
limited to reduce the kernel log from being spammed with the same messages.

Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
---
 drivers/mtd/mtdblock.c    | 2 +-
 drivers/mtd/mtdblock_ro.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/mtd/mtdblock.c b/drivers/mtd/mtdblock.c
index fa476fb4dffb..9751416c2a91 100644
--- a/drivers/mtd/mtdblock.c
+++ b/drivers/mtd/mtdblock.c
@@ -262,7 +262,7 @@ static int mtdblock_open(struct mtd_blktrans_dev *mbd)
 	}
 
 	if (mtd_type_is_nand(mbd->mtd))
-		pr_warn("%s: MTD device '%s' is NAND, please consider using UBI block devices instead.\n",
+		pr_warn_ratelimited("%s: MTD device '%s' is NAND, please consider using UBI block devices instead.\n",
 			mbd->tr->name, mbd->mtd->name);
 
 	/* OK, it's not open. Create cache info for it */
diff --git a/drivers/mtd/mtdblock_ro.c b/drivers/mtd/mtdblock_ro.c
index 66ffc9f1ead2..ef6299af60e4 100644
--- a/drivers/mtd/mtdblock_ro.c
+++ b/drivers/mtd/mtdblock_ro.c
@@ -49,7 +49,7 @@ static void mtdblock_add_mtd(struct mtd_blktrans_ops *tr, struct mtd_info *mtd)
 	dev->readonly = 1;
 
 	if (mtd_type_is_nand(mtd))
-		pr_warn("%s: MTD device '%s' is NAND, please consider using UBI block devices instead.\n",
+		pr_warn_ratelimited("%s: MTD device '%s' is NAND, please consider using UBI block devices instead.\n",
 			tr->name, mtd->name);
 
 	if (add_mtd_blktrans_dev(dev))
-- 
2.39.2

Re: [PATCH][next] mtdblock: make warning messages ratelimited

[Miquel Raynal]

On Wed, 2023-07-19 at 10:33:54 UTC, Colin Ian King wrote:
> When exercising various dev interfaces with stress-ng the mtdblock drivers
> can be (ab)used to generate a lot of warning messages. Make these rate
> limited to reduce the kernel log from being spammed with the same messages.
> 
> Signed-off-by: Colin Ian King <colin.i.king@gmail.com>

Applied to https://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux.git mtd/next, thanks.

Miquel