diff mbox series

crypto: qat: ratelimit invalid ioctl message and print the invalid cmd

Message ID 20210622151608.23741-1-colin.king@canonical.com (mailing list archive)
State Accepted
Delegated to: Herbert Xu
Headers show
Series crypto: qat: ratelimit invalid ioctl message and print the invalid cmd | expand

Commit Message

Colin King June 22, 2021, 3:16 p.m. UTC
From: Colin Ian King <colin.king@canonical.com>

Currently incorrect QAT ioctls can spam the kernel log with error messages
of the form "QAT: Invalid ioctl" if a userspace program uses the wrong
ioctl command. Quench the messages by ratelimiting them and also print
the invalid command being used as that is useful to know.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
---
 drivers/crypto/qat/qat_common/adf_ctl_drv.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Cabiddu, Giovanni June 23, 2021, 2:08 p.m. UTC | #1
On Tue, Jun 22, 2021 at 04:16:08PM +0100, Colin King wrote:
> From: Colin Ian King <colin.king@canonical.com>
> 
> Currently incorrect QAT ioctls can spam the kernel log with error messages
> of the form "QAT: Invalid ioctl" if a userspace program uses the wrong
> ioctl command. Quench the messages by ratelimiting them and also print
> the invalid command being used as that is useful to know.
> 
> Signed-off-by: Colin Ian King <colin.king@canonical.com>
Just a minor comment on the commit message:
crypto: qat: ratelimit invalid ioctl message and print
           ^
Patches to the qat driver have the following headline:
        crypto: qat -
not
        crypto: qat:


Apart from that
Acked-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com>

Regards,
Herbert Xu June 28, 2021, 3:31 a.m. UTC | #2
On Tue, Jun 22, 2021 at 04:16:08PM +0100, Colin King wrote:
> From: Colin Ian King <colin.king@canonical.com>
> 
> Currently incorrect QAT ioctls can spam the kernel log with error messages
> of the form "QAT: Invalid ioctl" if a userspace program uses the wrong
> ioctl command. Quench the messages by ratelimiting them and also print
> the invalid command being used as that is useful to know.
> 
> Signed-off-by: Colin Ian King <colin.king@canonical.com>
> ---
>  drivers/crypto/qat/qat_common/adf_ctl_drv.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

Patch applied.  Thanks.
diff mbox series

Patch

diff --git a/drivers/crypto/qat/qat_common/adf_ctl_drv.c b/drivers/crypto/qat/qat_common/adf_ctl_drv.c
index 96b437bfe3de..6f64aa693146 100644
--- a/drivers/crypto/qat/qat_common/adf_ctl_drv.c
+++ b/drivers/crypto/qat/qat_common/adf_ctl_drv.c
@@ -406,7 +406,7 @@  static long adf_ctl_ioctl(struct file *fp, unsigned int cmd, unsigned long arg)
 		ret = adf_ctl_ioctl_get_status(fp, cmd, arg);
 		break;
 	default:
-		pr_err("QAT: Invalid ioctl\n");
+		pr_err_ratelimited("QAT: Invalid ioctl %d\n", cmd);
 		ret = -EFAULT;
 		break;
 	}