Re: [PATCH v1] power: reset: reboot mode: fix build error of missing ioremap/iounmap on UM

From: Andy Yan
Date: Tue Aug 16 2016 - 06:56:03 EST


Hi Sebastian:


On 2016å08æ12æ 20:48, Krzysztof Kozlowski wrote:
On 08/12/2016 12:01 PM, Andy Yan wrote:
commit 4fcd504edbf7 ("power: reset: add reboot mode driver") uses api from
syscon, and syscon uses ioremap/iounmap which depends on HAS_IOMEM, so
let's depend on MFD_SYSCON instead of selecting it directly to avoid the
um-allyesconfig like build error on archs that without iomem:

drivers/mfd/syscon.c: In function 'of_syscon_register':
drivers/mfd/syscon.c:67:9: error: implicit declaration of function 'ioremap' [-Werror=implicit-function-declaration]
base = ioremap(res.start, resource_size(&res));
^
drivers/mfd/syscon.c:67:7: warning: assignment makes pointer from integer without a cast [-Wint-conversion]
base = ioremap(res.start, resource_size(&res));
^
drivers/mfd/syscon.c:109:2: error: implicit declaration of function 'iounmap' [-Werror=implicit-function-declaration]
iounmap(base);
^

Reported-by: Kbuild test robot <fengguang.wu@xxxxxxxxx>
Fixes: 4fcd504edbf7("power: reset: add reboot mode driver")
Signed-off-by: Andy Yan <andy.yan@xxxxxxxxxxxxxx>

---

Changes in v1:
- let this driver depend on MFD_SYSCON
- add Reported-by tag, which suggested by Krzysztof Kozlowski
- add Fixes tag, which suggested by Matthias Brugger

drivers/power/reset/Kconfig | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@xxxxxxxxxxx>

Best regards,
Krzysztof






Will you please take this patch to avoid the Kbuild test robot warning ?

Thanks