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SubjectRe: [PATCH] can: let SJA1000 driver depend on HAS_IOMEM
Heiko Carstens wrote:
> From: Heiko Carstens <heiko.carstens@de.ibm.com>
>
> Fixes this compile error on s390:
>
> drivers/net/can/sja1000/sja1000_platform.c: In function 'sp_read_reg':
> drivers/net/can/sja1000/sja1000_platform.c:42: error: implicit declaration of function 'ioread8'
> drivers/net/can/sja1000/sja1000_platform.c: In function 'sp_write_reg':
> drivers/net/can/sja1000/sja1000_platform.c:47: error: implicit declaration of function 'iowrite8'
> drivers/net/can/sja1000/sja1000_platform.c: In function 'sp_probe':
> drivers/net/can/sja1000/sja1000_platform.c:79: error: implicit declaration of function 'ioremap_nocache'
>
> Cc: Wolfgang Grandegger <wg@grandegger.com>
> Cc: Oliver Hartkopp <oliver.hartkopp@volkswagen.de>
> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
> ---
> drivers/net/can/Kconfig | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> Index: linux-2.6/drivers/net/can/Kconfig
> ===================================================================
> --- linux-2.6.orig/drivers/net/can/Kconfig
> +++ linux-2.6/drivers/net/can/Kconfig
> @@ -36,7 +36,7 @@ config CAN_CALC_BITTIMING
> If unsure, say Y.
>
> config CAN_SJA1000
> - depends on CAN_DEV
> + depends on CAN_DEV && HAS_IOMEM
> tristate "Philips SJA1000"
> ---help---
> Driver for the SJA1000 CAN controllers from Philips or NXP

Hm, this Kconfig entry is not directly responsible for building
sja1000_platform.o. It builds sja1000.o, which does not rely on
HAS_IOMEM. It should be added to "config CAN_SJA1000_PLATFORM" instead.
Does the patch below work for you?

Wolfgang.

---
drivers/net/can/Kconfig | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

Index: net-next-2.6/drivers/net/can/Kconfig
===================================================================
--- net-next-2.6.orig/drivers/net/can/Kconfig
+++ net-next-2.6/drivers/net/can/Kconfig
@@ -42,7 +42,7 @@ config CAN_SJA1000
Driver for the SJA1000 CAN controllers from Philips or NXP

config CAN_SJA1000_PLATFORM
- depends on CAN_SJA1000
+ depends on HAS_IOMEM && CAN_SJA1000
tristate "Generic Platform Bus based SJA1000 driver"
---help---
This driver adds support for the SJA1000 chips connected to



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