netdev - Re: [PATCH v7 net-next 2/8] sfc: add devlink info support for ef100

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Date:   Tue, 14 Feb 2023 09:39:42 +0200
From:   Leon Romanovsky <leon@...nel.org>
To:     alejandro.lucero-palau@....com
Cc:     netdev@...r.kernel.org, linux-net-drivers@....com,
        davem@...emloft.net, kuba@...nel.org, pabeni@...hat.com,
        edumazet@...gle.com, habetsm.xilinx@...il.com,
        ecree.xilinx@...il.com, linux-doc@...r.kernel.org, corbet@....net,
        jiri@...dia.com
Subject: Re: [PATCH v7 net-next 2/8] sfc: add devlink info support for ef100

On Mon, Feb 13, 2023 at 06:34:22PM +0000, alejandro.lucero-palau@....com wrote:
> From: Alejandro Lucero <alejandro.lucero-palau@....com>
> 
> Add devlink info support for ef100. The information reported is obtained
> through the MCDI interface with the specific meaning defined in new
> documentation file.
> 
> Signed-off-by: Alejandro Lucero <alejandro.lucero-palau@....com>
> Reviewed-by: Jiri Pirko <jiri@...dia.com>
> ---
>  Documentation/networking/devlink/index.rst |   1 +
>  Documentation/networking/devlink/sfc.rst   |  57 +++
>  MAINTAINERS                                |   1 +
>  drivers/net/ethernet/sfc/efx_devlink.c     | 459 +++++++++++++++++++++
>  drivers/net/ethernet/sfc/efx_devlink.h     |  17 +
>  drivers/net/ethernet/sfc/mcdi.c            |  72 ++++
>  drivers/net/ethernet/sfc/mcdi.h            |   3 +
>  7 files changed, 610 insertions(+)
>  create mode 100644 Documentation/networking/devlink/sfc.rst

<...>

> +static void efx_devlink_info_running_v2(struct efx_nic *efx,
> +					struct devlink_info_req *req,
> +					unsigned int flags, efx_dword_t *outbuf)
> +{
> +	char buf[EFX_MAX_VERSION_INFO_LEN];
> +	union {
> +		const __le32 *dwords;
> +		const __le16 *words;
> +		const char *str;
> +	} ver;
> +	struct rtc_time build_date;
> +	unsigned int build_id;
> +	size_t offset;
> +#ifdef CONFIG_RTC_LIB
> +	u64 tstamp;
> +#endif

If you are going to resubmit the series.

Documentation/process/coding-style.rst
  1140 21) Conditional Compilation
  1141 ---------------------------
....
  1156 If you have a function or variable which may potentially go unused in a
  1157 particular configuration, and the compiler would warn about its definition
  1158 going unused, mark the definition as __maybe_unused rather than wrapping it in
  1159 a preprocessor conditional.  (However, if a function or variable *always* goes
  1160 unused, delete it.)

Thanks