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Subject[PATCH 4.7 105/143] gpio: Fix OF build problem on UM
4.7-stable review patch.  If anyone has any objections, please let me know.


From: Linus Walleij <>

commit 2527ecc9195e9c66252af24c4689e8a67cd4ccb9 upstream.

The UserMode (UM) Linux build was failing in gpiolib-of as it requires
ioremap()/iounmap() to exist, which is absent from UM. The non-existence
of IO memory is negatively defined as CONFIG_NO_IOMEM which means we
need to depend on HAS_IOMEM.

Cc: Geert Uytterhoeven <>
Reported-by: kbuild test robot <>
Signed-off-by: Linus Walleij <>
Signed-off-by: Greg Kroah-Hartman <>

drivers/gpio/Kconfig | 1 +
1 file changed, 1 insertion(+)

--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -50,6 +50,7 @@ config GPIO_DEVRES
config OF_GPIO
def_bool y
depends on OF
+ depends on HAS_IOMEM

config GPIO_ACPI
def_bool y

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