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| author | Sam Ravnborg <sam@ravnborg.org> | 2011-12-27 21:46:53 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2011-12-27 22:33:13 +0100 |
| commit | aea1181b0bd0a09c54546399768f359d1e198e45 (patch) | |
| tree | 1cd2b545f2ea4b6d52b5e593a9da5c115598d1d6 /arch/sparc | |
| parent | apbuart: fix section mismatch warning (diff) | |
| download | linux-aea1181b0bd0a09c54546399768f359d1e198e45.tar.xz linux-aea1181b0bd0a09c54546399768f359d1e198e45.zip | |
sparc32: support atomic64_t
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>
Diffstat (limited to 'arch/sparc')
| -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 f92602e86607..27060b20678e 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 03fd0c520962..9dd0a769fa18 100644 --- a/arch/sparc/include/asm/atomic_32.h +++ b/arch/sparc/include/asm/atomic_32.h @@ -13,6 +13,8 @@ #include <linux/types.h> +#include <asm-generic/atomic64.h> + #include <asm/system.h> #define ATOMIC_INIT(i) { (i) } |