[PATCH] asm-generic: make __set_fixmap_offset a macro again

[Mark Rutland]

Turning __set_fixmap_offset into a static inline breaks the build for
several architectures. Fixing this properly requires updates to a number
of architectures to make them agree on the prototype of __set_fixmap.

For the timebeing, restore __set_fixmap_offset to its prior state as a
macro function, reverting commit ac4c0ac73485867c ("asm-generic: make
__set_fixmap_offset a static inline"). To avoid the original issue with
namespace clashes, 'addr' is prefixed with a liberal sprinking of
underscores.

Signed-off-by: Mark Rutland <mark.rutland@xxxxxxx>
Cc: Arnd Bergmann <arnd@xxxxxxxx>
Cc: Catalin Marinas <catalin.marinas@xxxxxxx>
---
 include/asm-generic/fixmap.h | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/include/asm-generic/fixmap.h b/include/asm-generic/fixmap.h
index f9c27b6..827e4d3 100644
--- a/include/asm-generic/fixmap.h
+++ b/include/asm-generic/fixmap.h
@@ -70,13 +70,13 @@ static inline unsigned long virt_to_fix(const unsigned long vaddr)
 #endif
 
 /* Return a pointer with offset calculated */
-static inline unsigned long __set_fixmap_offset(enum fixed_addresses idx,
-						phys_addr_t phys,
-						pgprot_t flags)
-{
-	__set_fixmap(idx, phys, flags);
-	return fix_to_virt(idx) + (phys & (PAGE_SIZE - 1));
-}
+#define __set_fixmap_offset(idx, phys, flags)				\
+({									\
+	unsigned long ________addr;					\
+	__set_fixmap(idx, phys, flags);					\
+	________addr = fix_to_virt(idx) + ((phys) & (PAGE_SIZE - 1));	\
+	________addr;							\
+})
 
 #define set_fixmap_offset(idx, phys) \
 	__set_fixmap_offset(idx, phys, FIXMAP_PAGE_NORMAL)
-- 
1.9.1