linux-kernel - Re: [RFC PATCH v2] ASoC: soc-pcm: Optimize hw

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Message-ID: <281111d0-2aa5-4ffd-b023-aa4f854a500d@nvidia.com>
Date: Tue, 8 Apr 2025 14:34:40 +0530
From: "Sheetal ." <sheetal@...dia.com>
To: broonie@...nel.org, lgirdwood@...il.com, perex@...ex.cz, tiwai@...e.com,
 linux-sound@...r.kernel.org
Cc: linux-tegra@...r.kernel.org, linux-kernel@...r.kernel.org,
 jonathanh@...dia.com, thierry.reding@...il.com, mkumard@...dia.com,
 spujar@...dia.com
Subject: Re: [RFC PATCH v2] ASoC: soc-pcm: Optimize hw_params() BE DAI call

Hi,

This patch should be a V1 and the "changes in v2" were based upon an 
initial internal review.

Please let me know if the change should be re-sent as V1.


On 08-04-2025 14:00, Sheetal . wrote:
> From: Sheetal <sheetal@...dia.com>
>
> The hw_params() function for BE DAI was being called multiple times due
> to an unnecessary SND_SOC_DPCM_STATE_HW_PARAMS state check.
>
> Remove the redundant state check to ensure hw_params() is called only once
> per BE DAI configuration.
>
> Signed-off-by: Sheetal <sheetal@...dia.com>
> ---
> Changes in v2:
> - Update commit message as its not a fix.
> - Marked as RFC patch as it requires feedback from other users
>    perspective as well.
> - The patch is being sent separately as other patch is not RFC.
>
>   sound/soc/soc-pcm.c | 1 -
>   1 file changed, 1 deletion(-)
>
> diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c
> index d7f6d3a6d312..c73be27c4ecb 100644
> --- a/sound/soc/soc-pcm.c
> +++ b/sound/soc/soc-pcm.c
> @@ -2123,7 +2123,6 @@ int dpcm_be_dai_hw_params(struct snd_soc_pcm_runtime *fe, int stream)
>   			continue;
>   
>   		if ((be->dpcm[stream].state != SND_SOC_DPCM_STATE_OPEN) &&
> -		    (be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_PARAMS) &&
>   		    (be->dpcm[stream].state != SND_SOC_DPCM_STATE_HW_FREE))
>   			continue;
>