linux-kernel - Re: [PATCH net 1/2] net: add eth_addr

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Date:   Tue, 23 Apr 2019 16:15:02 -0700
From:   Jakub Kicinski <jakub.kicinski@...ronome.com>
To:     Tao Ren <taoren@...com>
Cc:     "David S . Miller" <davem@...emloft.net>,
        Maxim Mikityanskiy <maximmi@...lanox.com>,
        Bartosz Golaszewski <bgolaszewski@...libre.com>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Samuel Mendoza-Jonas <sam@...dozajonas.com>,
        Joel Stanley <joel@....id.au>,
        Andrew Jeffery <andrew@...id.au>,
        "openbmc@...ts.ozlabs.org" <openbmc@...ts.ozlabs.org>
Subject: Re: [PATCH net 1/2] net: add eth_addr_inc in etherdevice.h

On Tue, 23 Apr 2019 22:41:56 +0000, Tao Ren wrote:
> Add eth_addr_inc function in etherdevice.h to increment MAC address. One
> of the use cases is in ncsi stack, where the host's MAC address needs to
> be incremented to get BMC's MAC address.
> 
> Signed-off-by: Tao Ren <taoren@...com>

Please squash this patch with the next one, IMHO they form a single
logical change together.

>  include/linux/etherdevice.h | 13 +++++++++++++
>  1 file changed, 13 insertions(+)
> 
> diff --git a/include/linux/etherdevice.h b/include/linux/etherdevice.h
> index e2f3b21cd72a..d48e3a724c54 100644
> --- a/include/linux/etherdevice.h
> +++ b/include/linux/etherdevice.h
> @@ -448,6 +448,19 @@ static inline void eth_addr_dec(u8 *addr)
>  	u64_to_ether_addr(u, addr);
>  }
>  
> +/**
> + * eth_addr_inc - Increment the given MAC address
> + *
> + * @addr: Pointer to a six-byte array containing Ethernet address to increment

Please see:  Documentation/doc-guide/kernel-doc.rst

Here we need:
 - "()" after function name;
 - no extra line between function name and argument description.

> + */
> +static inline void eth_addr_inc(u8 *addr)
> +{
> +	u64 u = ether_addr_to_u64(addr);
> +
> +	u++;
> +	u64_to_ether_addr(u, addr);
> +}
> +
>  /**
>   * is_etherdev_addr - Tell if given Ethernet address belongs to the device.
>   * @dev: Pointer to a device structure