kernel-ark/net/dsa/Kconfig
Ben Hutchings b3422a314c dsa: Hide core config options; make drivers select what they need
Commit 82167cb8c6 ('net: dsa/slave: Fix
compilation warnings') fixed one possible invalid configuration
(NET_DSA enabled with no trailer formats) but added others: drivers
can select NET_DSA without its dependencies being met.

It's not very useful to make either the DSA core or the tagging
formats manually selectable without a driver to use them, so:

1. Define a hidden HAVE_NET_DSA option and move the dependencies of
   NET_DSA to that.  While we're at it, drop the deprecated
   EXPERIMENTAL dependency.
2. Make NET_DSA and the drivers dependent on HAVE_NET_DSA.
3. Hide the tagging format options again.
4. Make drivers select both NET_DSA and the appropriate tagging format
   option.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-26 17:10:44 -05:00

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config HAVE_NET_DSA
def_bool y
depends on NETDEVICES && !S390
# Drivers must select NET_DSA and the appropriate tagging format
config NET_DSA
tristate
depends on HAVE_NET_DSA
select PHYLIB
if NET_DSA
# tagging formats
config NET_DSA_TAG_DSA
bool
config NET_DSA_TAG_EDSA
bool
config NET_DSA_TAG_TRAILER
bool
endif