From: Arnd Bergmann <arnd@arndb.de>
Date: Wed, 28 Jan 2015 14:15:02 +0000 (+0100)
Subject: net: wan: add missing virt_to_bus dependencies
X-Git-Tag: fixes-v4.0-rc1~200^2~30^2~2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=303c28d859cc7ab0f1f37acdd4aadf87c6e86743;p=pandora-kernel.git

net: wan: add missing virt_to_bus dependencies

The cosa driver is rather outdated and does not get built on most
platforms because it requires the ISA_DMA_API symbol. However
there are some ARM platforms that have ISA_DMA_API but no virt_to_bus,
and they get this build error when enabling the ltpc driver.

drivers/net/wan/cosa.c: In function 'tx_interrupt':
drivers/net/wan/cosa.c:1768:3: error: implicit declaration of function 'virt_to_bus'
   unsigned long addr = virt_to_bus(cosa->txbuf);
   ^

The same problem exists for the Hostess SV-11 and Sealevel Systems 4021
drivers.

This adds another dependency in Kconfig to avoid that configuration.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
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