From 555921feb2ac03d88647ccc62015e68f157c30a2 Mon Sep 17 00:00:00 2001 From: Dave Jiang Date: Sat, 23 Sep 2023 17:23:47 -0700 Subject: dmaengine: idxd: rate limit printk in misc interrupt thread Add rate limit to the dev_warn() call in the misc interrupt thread. This limits dmesg getting spammed if a descriptor submitter is spamming bad descriptors with invalid completion records and resulting the errors being continuously reported by the misc interrupt handling thread. Reported-by: Sanjay Kumar Signed-off-by: Dave Jiang Reviewed-by: Fenghua Yu Acked-by: Lijun Pan Link: https://lore.kernel.org/r/20230924002347.1117757-1-fenghua.yu@intel.com Signed-off-by: Vinod Koul --- drivers/dma/idxd/irq.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers/dma') diff --git a/drivers/dma/idxd/irq.c b/drivers/dma/idxd/irq.c index b501320a9c7a..2183d7f9cdbd 100644 --- a/drivers/dma/idxd/irq.c +++ b/drivers/dma/idxd/irq.c @@ -434,8 +434,8 @@ irqreturn_t idxd_misc_thread(int vec, void *data) val |= IDXD_INTC_ERR; for (i = 0; i < 4; i++) - dev_warn(dev, "err[%d]: %#16.16llx\n", - i, idxd->sw_err.bits[i]); + dev_warn_ratelimited(dev, "err[%d]: %#16.16llx\n", + i, idxd->sw_err.bits[i]); err = true; } -- cgit v1.2.3