Re: [PATCH net-next v2] sfc: use sysfs_emit() to instead of scnprintf()

[Martin Habets]

On Mon, Dec 05, 2022 at 10:21:45AM +0800, ye.xingchen@xxxxxxxxxx wrote:
> From: ye xingchen <ye.xingchen@xxxxxxxxxx>
> 
> Follow the advice of the Documentation/filesystems/sysfs.rst and show()
> should only use sysfs_emit() or sysfs_emit_at() when formatting the
> value to be returned to user space.
> 
> Signed-off-by: ye xingchen <ye.xingchen@xxxxxxxxxx>

Acked-by: Martin Habets <habetsm.xilinx@xxxxxxxxx>

> ---
> v1 -> v2
> Fix the Subject.
>  drivers/net/ethernet/sfc/efx_common.c       | 2 +-
>  drivers/net/ethernet/sfc/siena/efx_common.c | 2 +-
>  2 files changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/net/ethernet/sfc/efx_common.c b/drivers/net/ethernet/sfc/efx_common.c
> index c2224e41a694..cc30524c2fe4 100644
> --- a/drivers/net/ethernet/sfc/efx_common.c
> +++ b/drivers/net/ethernet/sfc/efx_common.c
> @@ -1164,7 +1164,7 @@ static ssize_t mcdi_logging_show(struct device *dev,
>  	struct efx_nic *efx = dev_get_drvdata(dev);
>  	struct efx_mcdi_iface *mcdi = efx_mcdi(efx);
> 
> -	return scnprintf(buf, PAGE_SIZE, "%d\n", mcdi->logging_enabled);
> +	return sysfs_emit(buf, "%d\n", mcdi->logging_enabled);
>  }
> 
>  static ssize_t mcdi_logging_store(struct device *dev,
> diff --git a/drivers/net/ethernet/sfc/siena/efx_common.c b/drivers/net/ethernet/sfc/siena/efx_common.c
> index 1fd396b00bfb..e4b294b8e9ac 100644
> --- a/drivers/net/ethernet/sfc/siena/efx_common.c
> +++ b/drivers/net/ethernet/sfc/siena/efx_common.c
> @@ -1178,7 +1178,7 @@ static ssize_t mcdi_logging_show(struct device *dev,
>  	struct efx_nic *efx = dev_get_drvdata(dev);
>  	struct efx_mcdi_iface *mcdi = efx_mcdi(efx);
> 
> -	return scnprintf(buf, PAGE_SIZE, "%d\n", mcdi->logging_enabled);
> +	return sysfs_emit(buf, "%d\n", mcdi->logging_enabled);
>  }
> 
>  static ssize_t mcdi_logging_store(struct device *dev,
> -- 
> 2.25.1