netdev - Re: [PATCH RFC] net: dsa: remove unnecessary phy.h include

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Date:   Tue, 17 Jan 2017 20:11:51 -0500
From:   Vivien Didelot <vivien.didelot@...oirfairelinux.com>
To:     Russell King - ARM Linux <linux@...linux.org.uk>,
        Andrew Lunn <andrew@...n.ch>
Cc:     Florian Fainelli <f.fainelli@...il.com>,
        "David S. Miller" <davem@...emloft.net>, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH RFC] net: dsa: remove unnecessary phy.h include

Hi Russell,

Russell King - ARM Linux <linux@...linux.org.uk> writes:

> Including phy.h and phy_fixed.h into net/dsa.h causes phy*.h to be an
> unnecessary dependency for quite a large amount of the kernel.  There's
> very little which actually requires definitions from phy.h in net/dsa.h
> - the include itself only wants the declaration of a couple of
> structures and IFNAMSIZ.
>
> Add linux/if.h for IFNAMSIZ, declarations for the structures, phy.h to
> mv88e6xxx.h as it needs it for phy_interface_t, and remove both phy.h
> and phy_fixed.h from net/dsa.h.
>
> This patch reduces from around 800 files rebuilt to around 40 - even
> with ccache, the time difference is noticable.
>
> Signed-off-by: Russell King <rmk+kernel@...linux.org.uk>

This patch applies cleanly on net-next and builds correctly after
touching include/linux/phy.h. My boards work fine with it.

Tested-by: Vivien Didelot <vivien.didelot@...oirfairelinux.com>

Thanks,

        Vivien