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authorChris Metcalf <cmetcalf@tilera.com>2013-06-15 16:47:47 -0400
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-06-27 11:27:30 -0700
commit68447fe9bd4f476aba881d2b4d88502e2c8807fe (patch)
treefb28295fddc540601f3d0f94b4d72f5d9eee762b
parentf86571e860ed8b57b395e2e7f7941f42880c5fdc (diff)
tilepro: work around module link error with gcc 4.7
commit 3cb3f839d306443f3d1e79b0bde1a2ad2c12b555 upstream. gcc 4.7.x is emitting calls to __ffsdi2 where previously it used to inline the appropriate ctz instructions. While this needs to be fixed in gcc, it's also easy to avoid having it cause build failures when building with those compilers by exporting __ffsdi2 to modules. Signed-off-by: Chris Metcalf <cmetcalf@tilera.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--arch/tile/lib/exports.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/tile/lib/exports.c b/arch/tile/lib/exports.c
index 2a81d32de0da..e51e5cd41f58 100644
--- a/arch/tile/lib/exports.c
+++ b/arch/tile/lib/exports.c
@@ -90,4 +90,6 @@ uint64_t __ashrdi3(uint64_t, unsigned int);
EXPORT_SYMBOL(__ashrdi3);
uint64_t __ashldi3(uint64_t, unsigned int);
EXPORT_SYMBOL(__ashldi3);
+int __ffsdi2(uint64_t);
+EXPORT_SYMBOL(__ffsdi2);
#endif