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authorSam Ravnborg <sam@ravnborg.org>2011-12-27 21:46:53 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-05-01 08:56:40 -0700
commit7a0db699f49f9045484cf256316689cd6668f949 (patch)
tree8a183e5aa2bf1c019c8eb5bb7db37e80a0601bfd
parent8a53479a31bed3ef13f55c6752cb1a3962affcff (diff)
sparc32: support atomic64_t
commit aea1181b0bd0a09c54546399768f359d1e198e45 upstream, Needed to compile ext4 for sparc32 since commit 503f4bdcc078e7abee273a85ce322de81b18a224 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: Andreas Larsson <andreas@gaisler.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--arch/sparc/Kconfig1
-rw-r--r--arch/sparc/include/asm/atomic_32.h2
2 files changed, 3 insertions, 0 deletions
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index 9e702570001d..bc31e5ec1c23 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 7ae128b19d3f..98f223a102c4 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) }