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net/appletalk: LTPC needs virt_to_bus

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The ltpc driver is rather outdated and does not get built on most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/appletalk/ltpc.c: In function 'handlefc':
drivers/net/appletalk/ltpc.c:380:2: error: implicit declaration of function 'virt_to_bus' [-Werror=implicit-function-declaration]
  set_dma_addr(dma,virt_to_bus(ltdmacbuf));
  ^

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>
This commit is contained in:
Arnd Bergmann
2015-02-18 20:48:54 +01:00
committed by David S. Miller
parent 15added6a5
commit bf60e50cb3
1 changed files with 1 additions and 1 deletions
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2
drivers/net/appletalk/Kconfig
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@@ -40,7 +40,7 @@ config DEV_APPLETALK
config LTPC config LTPC
tristate "Apple/Farallon LocalTalk PC support" tristate "Apple/Farallon LocalTalk PC support"
depends on DEV_APPLETALK && (ISA || EISA) && ISA_DMA_API depends on DEV_APPLETALK && (ISA || EISA) && ISA_DMA_API && VIRT_TO_BUS
help help
This allows you to use the AppleTalk PC card to connect to LocalTalk This allows you to use the AppleTalk PC card to connect to LocalTalk
networks. The card is also known as the Farallon PhoneNet PC card. networks. The card is also known as the Farallon PhoneNet PC card.