diff options
| author | Sam Ravnborg <sam@ravnborg.org> | 2011-12-27 21:46:53 +0100 |
|---|---|---|
| committer | Ben Hutchings <ben@decadent.org.uk> | 2013-09-10 01:57:32 +0100 |
| commit | e188bae8b4648137b336c35b0abaf43939ef401e (patch) | |
| tree | 1322e4f302ee1a77ebfd9c771ad605b5c75e8db9 | |
| parent | c7104995c19153da39c67924bc204e82e75cfccf (diff) | |
sparc32: support atomic64_t
commit aea1181b0bd0a09c54546399768f359d1e198e45 upstream.
There is no-one that really require atomic64_t support on sparc32.
But several drivers fails to build without proper atomic64 support.
And for an allyesconfig build for sparc32 this is annoying.
Include the generic atomic64_t support for sparc32.
This has a text footprint cost:
$size vmlinux (before atomic64_t support)
text data bss dec hex filename
3578860 134260 108781 3821901 3a514d vmlinux
$size vmlinux (after atomic64_t support)
text data bss dec hex filename
3579892 130684 108781 3819357 3a475d vmlinux
text increase (3579892 - 3578860) = 1032 bytes
data decreases - but I fail to explain why!
I have rebuild twice to check my numbers.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
| -rw-r--r-- | arch/sparc/Kconfig | 1 | ||||
| -rw-r--r-- | arch/sparc/include/asm/atomic_32.h | 2 |
2 files changed, 3 insertions, 0 deletions
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig index f210d5120f67..87537e208445 100644 --- a/arch/sparc/Kconfig +++ b/arch/sparc/Kconfig @@ -31,6 +31,7 @@ config SPARC config SPARC32 def_bool !64BIT + select GENERIC_ATOMIC64 config SPARC64 def_bool 64BIT diff --git a/arch/sparc/include/asm/atomic_32.h b/arch/sparc/include/asm/atomic_32.h index 5c3c8b69884d..07dd35e4454d 100644 --- a/arch/sparc/include/asm/atomic_32.h +++ b/arch/sparc/include/asm/atomic_32.h @@ -15,6 +15,8 @@ #ifdef __KERNEL__ +#include <asm-generic/atomic64.h> + #include <asm/system.h> #define ATOMIC_INIT(i) { (i) } |