linux-kernel - Re: [PATCH v2] soc: mediatek: cmdq: Don't log an error when gce-client-reg is not found

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Date: Fri, 1 Mar 2024 09:51:55 +0100
From: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
To: Nícolas F. R. A. Prado <nfraprado@...labora.com>,
 Matthias Brugger <matthias.bgg@...il.com>
Cc: kernel@...labora.com, linux-kernel@...r.kernel.org,
 linux-arm-kernel@...ts.infradead.org, linux-mediatek@...ts.infradead.org
Subject: Re: [PATCH v2] soc: mediatek: cmdq: Don't log an error when
 gce-client-reg is not found

Il 29/02/24 20:51, Nícolas F. R. A. Prado ha scritto:
> Most of the callers to this function do not require CMDQ support, it is
> optional, so the missing property shouldn't cause an error message.
> However, it could result on degraded performance, so the fact that it's
> missing should still be alerted. Furthermore, the callers that do
> require CMDQ support already log at the error level when an error is
> returned.
> 
> Change the log message in this helper to be printed at the warning level
> instead.
> 
> Signed-off-by: Nícolas F. R. A. Prado <nfraprado@...labora.com>

Ok, this is good now.

Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>

> ---
> Changes in v2:
> - Changed from debug to warning level
> - Tweaked commit message to mention performance penalty of not having
>    GCE
> - Link to v1: https://lore.kernel.org/r/20240226-gce-client-reg-log-dbg-v1-1-f0fff97c30c7@collabora.com
> ---
>   drivers/soc/mediatek/mtk-cmdq-helper.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/soc/mediatek/mtk-cmdq-helper.c b/drivers/soc/mediatek/mtk-cmdq-helper.c
> index b0cd071c4719..943e9055dd1f 100644
> --- a/drivers/soc/mediatek/mtk-cmdq-helper.c
> +++ b/drivers/soc/mediatek/mtk-cmdq-helper.c
> @@ -55,7 +55,7 @@ int cmdq_dev_get_client_reg(struct device *dev,
>   					       "mediatek,gce-client-reg",
>   					       3, idx, &spec);
>   	if (err < 0) {
> -		dev_err(dev,
> +		dev_warn(dev,
>   			"error %d can't parse gce-client-reg property (%d)",
>   			err, idx);
>   
> 
> ---
> base-commit: 41913bcddc83b131649ee8ff0d9ff29e01731398
> change-id: 20240226-gce-client-reg-log-dbg-5ae9637a08ed
> 
> Best regards,