From 1fde902d52ee13ab9fab155bbae757fdf7daf0c1 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Fri, 3 Jul 2009 17:28:57 +0200 Subject: x86: atomic64: Export APIs to modules atomic64_t primitives are used by a handful of drivers, so export the APIs consistently. These were inlined before. Also mark atomic64_32.o a core object, so that the symbols are available even if not linked to core kernel pieces. Cc: Eric Dumazet Cc: Linus Torvalds Cc: Peter Zijlstra Cc: Mike Galbraith Cc: Paul Mackerras Cc: Arnaldo Carvalho de Melo Cc: Frederic Weisbecker Cc: David Howells Cc: Andrew Morton Cc: Arnd Bergmann LKML-Reference: Signed-off-by: Ingo Molnar --- arch/x86/lib/Makefile | 2 +- arch/x86/lib/atomic64_32.c | 18 ++++++++++++++++++ 2 files changed, 19 insertions(+), 1 deletion(-) diff --git a/arch/x86/lib/Makefile b/arch/x86/lib/Makefile index c3c657c8bb83..07c31899c9c2 100644 --- a/arch/x86/lib/Makefile +++ b/arch/x86/lib/Makefile @@ -10,7 +10,7 @@ lib-y += usercopy_$(BITS).o getuser.o putuser.o lib-y += memcpy_$(BITS).o ifeq ($(CONFIG_X86_32),y) - lib-y += atomic64_32.o + obj-y += atomic64_32.o lib-y += checksum_32.o lib-y += strstr_32.o lib-y += semaphore_32.o string_32.o diff --git a/arch/x86/lib/atomic64_32.c b/arch/x86/lib/atomic64_32.c index cd11803f9448..6722a092e407 100644 --- a/arch/x86/lib/atomic64_32.c +++ b/arch/x86/lib/atomic64_32.c @@ -1,5 +1,7 @@ #include +#include #include + #include #include #include @@ -21,6 +23,7 @@ u64 atomic64_cmpxchg(atomic64_t *ptr, u64 old_val, u64 new_val) { return cmpxchg8b(&ptr->counter, old_val, new_val); } +EXPORT_SYMBOL(atomic64_cmpxchg); /** * atomic64_xchg - xchg atomic64 variable @@ -41,6 +44,7 @@ u64 atomic64_xchg(atomic64_t *ptr, u64 new_val) return old_val; } +EXPORT_SYMBOL(atomic64_xchg); /** * atomic64_set - set atomic64 variable @@ -53,6 +57,7 @@ void atomic64_set(atomic64_t *ptr, u64 new_val) { atomic64_xchg(ptr, new_val); } +EXPORT_SYMBOL(atomic64_read); /** * atomic64_read - read atomic64 variable @@ -74,6 +79,7 @@ u64 atomic64_read(atomic64_t *ptr) return res; } +EXPORT_SYMBOL(atomic64_read); /** * atomic64_add_return - add and return @@ -103,21 +109,25 @@ noinline u64 atomic64_add_return(u64 delta, atomic64_t *ptr) return new_val; } +EXPORT_SYMBOL(atomic64_add_return); u64 atomic64_sub_return(u64 delta, atomic64_t *ptr) { return atomic64_add_return(-delta, ptr); } +EXPORT_SYMBOL(atomic64_sub_return); u64 atomic64_inc_return(atomic64_t *ptr) { return atomic64_add_return(1, ptr); } +EXPORT_SYMBOL(atomic64_inc_return); u64 atomic64_dec_return(atomic64_t *ptr) { return atomic64_sub_return(1, ptr); } +EXPORT_SYMBOL(atomic64_dec_return); /** * atomic64_add - add integer to atomic64 variable @@ -130,6 +140,7 @@ void atomic64_add(u64 delta, atomic64_t *ptr) { atomic64_add_return(delta, ptr); } +EXPORT_SYMBOL(atomic64_add); /** * atomic64_sub - subtract the atomic64 variable @@ -142,6 +153,7 @@ void atomic64_sub(u64 delta, atomic64_t *ptr) { atomic64_add(-delta, ptr); } +EXPORT_SYMBOL(atomic64_sub); /** * atomic64_sub_and_test - subtract value from variable and test result @@ -158,6 +170,7 @@ int atomic64_sub_and_test(u64 delta, atomic64_t *ptr) return old_val == 0; } +EXPORT_SYMBOL(atomic64_sub_and_test); /** * atomic64_inc - increment atomic64 variable @@ -169,6 +182,7 @@ void atomic64_inc(atomic64_t *ptr) { atomic64_add(1, ptr); } +EXPORT_SYMBOL(atomic64_inc); /** * atomic64_dec - decrement atomic64 variable @@ -180,6 +194,7 @@ void atomic64_dec(atomic64_t *ptr) { atomic64_sub(1, ptr); } +EXPORT_SYMBOL(atomic64_dec); /** * atomic64_dec_and_test - decrement and test @@ -193,6 +208,7 @@ int atomic64_dec_and_test(atomic64_t *ptr) { return atomic64_sub_and_test(1, ptr); } +EXPORT_SYMBOL(atomic64_dec_and_test); /** * atomic64_inc_and_test - increment and test @@ -206,6 +222,7 @@ int atomic64_inc_and_test(atomic64_t *ptr) { return atomic64_sub_and_test(-1, ptr); } +EXPORT_SYMBOL(atomic64_inc_and_test); /** * atomic64_add_negative - add and test if negative @@ -222,3 +239,4 @@ int atomic64_add_negative(u64 delta, atomic64_t *ptr) return old_val < 0; } +EXPORT_SYMBOL(atomic64_add_negative); -- cgit v1.2.1