mtdblock: make warning messages ratelimited

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>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20230719103354.2829366-1-colin.i.king@gmail.com

diff --git a/drivers/mtd/mtdblock.c b/drivers/mtd/mtdblock.c
index fa476fb4dffb6c9289f8b5678ff4f49c06a2a4a9..9751416c2a91bdbf9033e67f06740324d0f9b40c 100644 (file)
--- 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 66ffc9f1ead2f76aa142f04801fa292de7e8d5e1..ef6299af60e4f063bef9e8e3ca3b92990e07c9f0 100644 (file)
--- 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))