[RFC PATCH] hda_intel: ratelimit "spurious response" message

From: Joe Perches
Date: Thu Nov 07 2013 - 14:55:37 EST


dmesg here has a 100+ consecutive lines of:

[ 1464.219446] hda-intel 0000:00:14.2: spurious response 0x0:0x0, last cmd=0x170500
[ 1464.219451] hda-intel 0000:00:14.2: spurious response 0x0:0x0, last cmd=0x170500
[ 1464.219454] hda-intel 0000:00:14.2: spurious response 0x0:0x0, last cmd=0x170500
...

Ratelimit the message to reduce the dmesg log noise.

Coalesce the format while at it.

Signed-off-by: Joe Perches <joe@xxxxxxxxxxx>
---
sound/pci/hda/hda_intel.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index 6e61a01..6e444ca 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -906,12 +906,12 @@ static void azx_update_rirb(struct azx *chip)
chip->rirb.res[addr] = res;
smp_wmb();
chip->rirb.cmds[addr]--;
- } else
- snd_printk(KERN_ERR SFX "%s: spurious response %#x:%#x, "
- "last cmd=%#08x\n",
+ } else if (printk_ratelimit()) {
+ snd_printk(KERN_ERR SFX "%s: spurious response %#x:%#x, last cmd=%#08x\n",
pci_name(chip->pci),
res, res_ex,
chip->last_cmd[addr]);
+ }
}
}



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