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| author | Emmanuel Grumbach <emmanuel.grumbach@intel.com> | 2014-05-06 20:37:42 +0300 |
|---|---|---|
| committer | Emmanuel Grumbach <emmanuel.grumbach@intel.com> | 2014-05-06 20:37:42 +0300 |
| commit | cebeb0f1885fa93c44be5d4e0b9b640210ff088c (patch) | |
| tree | a33e4af4ddaa7a57f997ab9a2baceb48209670cd /lib/clz_ctz.c | |
| parent | 939ecf6b14c46e3448411a934418311b492bfee4 (diff) | |
| parent | 48d11dc37977614a461bfedddc52d1c651bc279f (diff) | |
Merge remote-tracking branch 'wireless-next/master' into iwlwifi-next
Diffstat (limited to 'lib/clz_ctz.c')
| -rw-r--r-- | lib/clz_ctz.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/lib/clz_ctz.c b/lib/clz_ctz.c index a8f8379eb49f7..2e11e48446abf 100644 --- a/lib/clz_ctz.c +++ b/lib/clz_ctz.c @@ -6,6 +6,9 @@ * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. + * The functions in this file aren't called directly, but are required by + * GCC builtins such as __builtin_ctz, and therefore they can't be removed + * despite appearing unreferenced in kernel source. * * __c[lt]z[sd]i2 can be overridden by linking arch-specific versions. */ @@ -13,18 +16,22 @@ #include <linux/export.h> #include <linux/kernel.h> +int __weak __ctzsi2(int val); int __weak __ctzsi2(int val) { return __ffs(val); } EXPORT_SYMBOL(__ctzsi2); +int __weak __clzsi2(int val); int __weak __clzsi2(int val) { return 32 - fls(val); } EXPORT_SYMBOL(__clzsi2); +int __weak __clzdi2(long val); +int __weak __ctzdi2(long val); #if BITS_PER_LONG == 32 int __weak __clzdi2(long val) |