The um arch is the only architecture that sets the config 'NO_IOMEM',
yet drivers that use IO memory can be selected. In order to make these
drivers happy we add a dummy implementation for memcpy_{from,to}io and
memset_io functions.
Reviewed-by: Yann Sionneau <ysionneau@xxxxxxxxxxxxx>
Signed-off-by: Julian Vetter <jvetter@xxxxxxxxxxxxx>
---
Changes for v7:
- New patch
---
arch/um/include/asm/io.h | 17 +++++++++++++++++
1 file changed, 17 insertions(+)
diff --git a/arch/um/include/asm/io.h b/arch/um/include/asm/io.h
index 9ea42cc746d9..f02f40609798 100644
--- a/arch/um/include/asm/io.h
+++ b/arch/um/include/asm/io.h
@@ -21,6 +21,23 @@ static inline void iounmap(void __iomem *addr)
}
#endif /* iounmap */
+static inline void memset_io(volatile void __iomem *dst, int c, size_t count)
+{
+ memset((void *)dst, c, count);
+}
+
+static inline void memcpy_toio(volatile void __iomem *to, const void *from,
+ size_t count)
+{
+ memcpy((void *)to, from, count);
+}
+
+static inline void memcpy_fromio(void *to, const volatile void __iomem *from,
+ size_t count)
+{
+ memcpy(to, (void *)from, count);
+}
+
#include <asm-generic/io.h>
#endif
--
2.34.1
