[PATCH] um: kunit: resolve missing prototypes warning

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While building for KUnit with default settings, the build is generating
the following compilation warnings.

```
$ make ARCH=um O=.kunit --jobs=16
../lib/iomap.c:156:5: warning: no previous prototype for
‘ioread64_lo_hi’ [-Wmissing-prototypes]
  156 | u64 ioread64_lo_hi(const void __iomem *addr)
      |     ^~~~~~~~~~~~~~
[...]
```

The warning happens because the prototypes are defined in
`asm-generic/iomap.h` only when `readq` and `writeq` are defined.
For UM, those function get some default definitions but are currently
defined _after_ the prototypes for `ioread64*`/`iowrite64*` functions.
Moving the inclusion of `asm-generic/iomap.h` fixes it.

Signed-off-by: Gabriele Monaco <gmonaco@xxxxxxxxxx>
---
 include/asm-generic/io.h | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/include/asm-generic/io.h b/include/asm-generic/io.h
index 80de699bf6af..0b02c8e38f20 100644
--- a/include/asm-generic/io.h
+++ b/include/asm-generic/io.h
@@ -13,10 +13,6 @@
 #include <linux/types.h>
 #include <linux/instruction_pointer.h>
 
-#ifdef CONFIG_GENERIC_IOMAP
-#include <asm-generic/iomap.h>
-#endif
-
 #include <asm/mmiowb.h>
 #include <asm-generic/pci_iomap.h>
 
@@ -295,6 +291,10 @@ static inline void writeq(u64 value, volatile void __iomem *addr)
 #endif
 #endif /* CONFIG_64BIT */
 
+#ifdef CONFIG_GENERIC_IOMAP
+#include <asm-generic/iomap.h>
+#endif
+
 /*
  * {read,write}{b,w,l,q}_relaxed() are like the regular version, but
  * are not guaranteed to provide ordering against spinlocks or memory

base-commit: 67784a74e258a467225f0e68335df77acd67b7ab
-- 
2.46.0





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