linux-kernel - Re: [PATCH 2/3] mmc: sdhci: constify references of parameters to __sdhci_read

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Date:   Thu, 29 Aug 2019 16:09:33 +0300
From:   Adrian Hunter <adrian.hunter@...el.com>
To:     Masahiro Yamada <yamada.masahiro@...ionext.com>,
        linux-mmc@...r.kernel.org, Ulf Hansson <ulf.hansson@...aro.org>
Cc:     Piotr Sroka <piotrs@...ence.com>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/3] mmc: sdhci: constify references of parameters to
 __sdhci_read_caps()

On 29/08/19 1:49 PM, Masahiro Yamada wrote:
> __sdhci_read_caps() does not modify *ver, *caps, or *caps1.
> 
> Probably, the caller of this function will want to constifythe
> parameters passed in.
> 
> Signed-off-by: Masahiro Yamada <yamada.masahiro@...ionext.com>

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

> ---
> 
>  drivers/mmc/host/sdhci.c | 3 ++-
>  drivers/mmc/host/sdhci.h | 4 ++--
>  2 files changed, 4 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
> index a5dc5aae973e..08cc0792c174 100644
> --- a/drivers/mmc/host/sdhci.c
> +++ b/drivers/mmc/host/sdhci.c
> @@ -3565,7 +3565,8 @@ static int sdhci_set_dma_mask(struct sdhci_host *host)
>  	return ret;
>  }
>  
> -void __sdhci_read_caps(struct sdhci_host *host, u16 *ver, u32 *caps, u32 *caps1)
> +void __sdhci_read_caps(struct sdhci_host *host, const u16 *ver,
> +		       const u32 *caps, const u32 *caps1)
>  {
>  	u16 v;
>  	u64 dt_caps_mask = 0;
> diff --git a/drivers/mmc/host/sdhci.h b/drivers/mmc/host/sdhci.h
> index 902f855efe8f..81e23784475a 100644
> --- a/drivers/mmc/host/sdhci.h
> +++ b/drivers/mmc/host/sdhci.h
> @@ -738,8 +738,8 @@ static inline void *sdhci_priv(struct sdhci_host *host)
>  }
>  
>  void sdhci_card_detect(struct sdhci_host *host);
> -void __sdhci_read_caps(struct sdhci_host *host, u16 *ver, u32 *caps,
> -		       u32 *caps1);
> +void __sdhci_read_caps(struct sdhci_host *host, const u16 *ver,
> +		       const u32 *caps, const u32 *caps1);
>  int sdhci_setup_host(struct sdhci_host *host);
>  void sdhci_cleanup_host(struct sdhci_host *host);
>  int __sdhci_add_host(struct sdhci_host *host);
>