Re: [PATCH v1 2/2] drm/xe/mert: Rate limit VF LMTT fault debug log

["Laguna, Lukasz" <lukasz.laguna@intel.com>]

On 7/21/2026 11:31, Piórkowski, Piotr wrote:
> From: Piotr Piórkowski <piotr.piorkowski@intel.com>
>
> A faulty or malicious VF may repeatedly trigger LMTT faults and
> generate many identical CATERR debug messages.
>
> Use xe_sriov_dbg_ratelimited() to reduce log spam while keeping
> useful debug information available.
>
> Signed-off-by: Piotr Piórkowski <piotr.piorkowski@intel.com>

Reviewed-by: Lukasz Laguna <lukasz.laguna@intel.com>

> ---
>   drivers/gpu/drm/xe/xe_mert.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/xe/xe_mert.c b/drivers/gpu/drm/xe/xe_mert.c
> index f637df95418b..32700c19a1df 100644
> --- a/drivers/gpu/drm/xe/xe_mert.c
> +++ b/drivers/gpu/drm/xe/xe_mert.c
> @@ -77,7 +77,7 @@ static void mert_handle_cat_error(struct xe_device *xe)
>   		xe_device_declare_wedged(xe);
>   		break;
>   	case CATERR_LMTT_FAULT:
> -		xe_sriov_dbg(xe, "MERT: CAT_ERR: VF%u LMTT fault!\n", vfid);
> +		xe_sriov_dbg_ratelimited(xe, "MERT: CAT_ERR: VF%u LMTT fault!\n", vfid);
>   		/* XXX: track/report malicious VF activity */
>   		break;
>   	default: