[alsa-devel] [PATCH] ASoC: intel: Don't print FW version repeatedly

[Vinod Koul]

On Mon, Mar 27, 2017 at 10:39:58AM +0200, Takashi Iwai wrote:
> Intel SST driver spews an info message "FW Versoin xxxx" at each time
> the device gets initialized.  Since it's triggered at each PM (or even
> runtime PM), it appears so ofetn, and rather becomes annoying than
				^^
typo

> useful.
> 
> This patch suppresses the superfluous messages by checking the
> currently loaded FW version with the previously loaded one.
> 
> Signed-off-by: Takashi Iwai <tiwai at suse.de>
> ---
>  sound/soc/intel/atom/sst/sst_ipc.c | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/sound/soc/intel/atom/sst/sst_ipc.c b/sound/soc/intel/atom/sst/sst_ipc.c
> index 14c2d9d18180..20b01e02ed8f 100644
> --- a/sound/soc/intel/atom/sst/sst_ipc.c
> +++ b/sound/soc/intel/atom/sst/sst_ipc.c
> @@ -236,7 +236,9 @@ static void process_fw_init(struct intel_sst_drv *sst_drv_ctx,
>  		retval = init->result;
>  		goto ret;
>  	}
> -	dev_info(sst_drv_ctx->dev, "FW Version %02x.%02x.%02x.%02x\n",
> +	if (memcmp(&sst_drv_ctx->fw_version, &init->fw_version,
> +		   sizeof(init->fw_version)))

wont dev_info_once be better here? We are really not expecting a new version
after suspend :)

> +		dev_info(sst_drv_ctx->dev, "FW Version %02x.%02x.%02x.%02x\n",
>  			init->fw_version.type, init->fw_version.major,
>  			init->fw_version.minor, init->fw_version.build);
>  	dev_dbg(sst_drv_ctx->dev, "Build date %s Time %s\n",
> -- 
> 2.11.1
> 

-- 
~Vinod