diff options
| author | Dave Jiang <dave.jiang@intel.com> | 2023-09-24 03:23:47 +0300 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2023-09-28 10:55:41 +0300 |
| commit | 555921feb2ac03d88647ccc62015e68f157c30a2 (patch) | |
| tree | ebbce9354bef7fba1f6b271ccd2bfbd4da1eeabd | |
| parent | b1c50ac25425385b576dd58b7b38c1c5963dde85 (diff) | |
| download | linux-555921feb2ac03d88647ccc62015e68f157c30a2.tar.xz | |
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 <sanjay.k.kumar@intel.com>
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Reviewed-by: Fenghua Yu <fenghua.yu@intel.com>
Acked-by: Lijun Pan <lijun.pan@intel.com>
Link: https://lore.kernel.org/r/20230924002347.1117757-1-fenghua.yu@intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
| -rw-r--r-- | drivers/dma/idxd/irq.c | 4 |
1 files changed, 2 insertions, 2 deletions
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; } |