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authorChris Metcalf <cmetcalf@tilera.com>2013-06-15 16:47:47 -0400
committerChris Metcalf <cmetcalf@tilera.com>2013-06-15 16:47:47 -0400
commit3cb3f839d306443f3d1e79b0bde1a2ad2c12b555 (patch)
treee74aa28344823339f5b47092146e6e5a32175fb3 /arch/tile
parent317ddd256b9c24b0d78fa8018f80f1e495481a10 (diff)
downloadop-kernel-dev-3cb3f839d306443f3d1e79b0bde1a2ad2c12b555.zip
op-kernel-dev-3cb3f839d306443f3d1e79b0bde1a2ad2c12b555.tar.gz
tilepro: work around module link error with gcc 4.7
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> Cc: stable@kernel.org
Diffstat (limited to 'arch/tile')
-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 4385cb6..a93b02a 100644
--- a/arch/tile/lib/exports.c
+++ b/arch/tile/lib/exports.c
@@ -84,4 +84,6 @@ 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
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