Re: [PATCH 16/33] mmc: sdhci-xenon: use match_string() helper

[Adrian Hunter]

On 21/05/18 14:57, Yisheng Xie wrote:
> match_string() returns the index of an array for a matching string,
> which can be used intead of open coded variant.
> 
> Cc: Adrian Hunter <adrian.hunter@xxxxxxxxx>
> Cc: Hu Ziji <huziji@xxxxxxxxxxx>
> Cc: Ulf Hansson <ulf.hansson@xxxxxxxxxx>
> Cc: linux-mmc@xxxxxxxxxxxxxxx
> Signed-off-by: Yisheng Xie <xieyisheng1@xxxxxxxxxx>

Acked-by: Adrian Hunter <adrian.hunter@xxxxxxxxx>

> ---
>  drivers/mmc/host/sdhci-xenon-phy.c | 11 +++--------
>  1 file changed, 3 insertions(+), 8 deletions(-)
> 
> diff --git a/drivers/mmc/host/sdhci-xenon-phy.c b/drivers/mmc/host/sdhci-xenon-phy.c
> index ec87943..a35804b 100644
> --- a/drivers/mmc/host/sdhci-xenon-phy.c
> +++ b/drivers/mmc/host/sdhci-xenon-phy.c
> @@ -814,15 +814,10 @@ static int xenon_add_phy(struct device_node *np, struct sdhci_host *host,
>  {
>  	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
>  	struct xenon_priv *priv = sdhci_pltfm_priv(pltfm_host);
> -	int i, ret;
> +	int ret;
>  
> -	for (i = 0; i < NR_PHY_TYPES; i++) {
> -		if (!strcmp(phy_name, phy_types[i])) {
> -			priv->phy_type = i;
> -			break;
> -		}
> -	}
> -	if (i == NR_PHY_TYPES) {
> +	priv->phy_type = match_string(phy_types, NR_PHY_TYPES, phy_name);
> +	if (priv->phy_type < 0) {
>  		dev_err(mmc_dev(host->mmc),
>  			"Unable to determine PHY name %s. Use default eMMC 5.1 PHY\n",
>  			phy_name);
>