Hi Russell,

Russell King - ARM Linux [off-list ref] 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 <redacted>

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 <redacted>

Thanks,

        Vivien