path: root/drivers
diff options
authorArnd Bergmann <arnd@arndb.de>2021-09-27 16:15:24 +0200
committerDavid S. Miller <davem@davemloft.net>2021-09-28 13:12:07 +0100
commit05e97b3d33cb25b9d9580b33ea0dd69aa922c529 (patch)
treec1c71b5012e3d847ccbf7d64d3970df8688dd047 /drivers
parentnet: ks8851: fix link error (diff)
dmascc: add CONFIG_VIRT_TO_BUS dependency
Many architectures don't define virt_to_bus() any more, as drivers should be using the dma-mapping interfaces where possible: In file included from drivers/net/hamradio/dmascc.c:27: drivers/net/hamradio/dmascc.c: In function 'tx_on': drivers/net/hamradio/dmascc.c:976:30: error: implicit declaration of function 'virt_to_bus'; did you mean 'virt_to_fix'? [-Werror=implicit-function-declaration] 976 | virt_to_bus(priv->tx_buf[priv->tx_tail]) + n); | ^~~~~~~~~~~ arch/arm/include/asm/dma.h:109:52: note: in definition of macro 'set_dma_addr' 109 | __set_dma_addr(chan, (void *)__bus_to_virt(addr)) | ^~~~ Add the Kconfig dependency to prevent this from being built on architectures without virt_to_bus(). Fixes: bc1abb9e55ce ("dmascc: use proper 'virt_to_bus()' rather than casting to 'int'") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to '')
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/hamradio/Kconfig b/drivers/net/hamradio/Kconfig
index f4843f9672c1..441da03c23ee 100644
--- a/drivers/net/hamradio/Kconfig
+++ b/drivers/net/hamradio/Kconfig
@@ -48,6 +48,7 @@ config BPQETHER
config DMASCC
tristate "High-speed (DMA) SCC driver for AX.25"
depends on ISA && AX25 && BROKEN_ON_SMP && ISA_DMA_API
+ depends on VIRT_TO_BUS
This is a driver for high-speed SCC boards, i.e. those supporting
DMA on one port. You usually use those boards to connect your