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-rw-r--r--arch/x86/lib/atomic64_32.c23
1 files changed, 1 insertions, 22 deletions
diff --git a/arch/x86/lib/atomic64_32.c b/arch/x86/lib/atomic64_32.c
index 1d98c9eb6ea..824fa0be55a 100644
--- a/arch/x86/lib/atomic64_32.c
+++ b/arch/x86/lib/atomic64_32.c
@@ -66,31 +66,10 @@ void atomic64_set(atomic64_t *ptr, u64 new_val)
{
atomic64_xchg(ptr, new_val);
}
-EXPORT_SYMBOL(atomic64_read);
+EXPORT_SYMBOL(atomic64_set);
/**
- * atomic64_read - read atomic64 variable
- * @ptr: pointer to type atomic64_t
- *
- * Atomically reads the value of @ptr and returns it.
- */
-u64 atomic64_read(atomic64_t *ptr)
-{
- u64 res;
-
- asm volatile(
- "mov %%ebx, %%eax\n\t"
- "mov %%ecx, %%edx\n\t"
- LOCK_PREFIX "cmpxchg8b %1\n"
- : "+A" (res)
- : "m" (*ptr)
- );
-
- return res;
-}
EXPORT_SYMBOL(atomic64_read);
-
-/**
* atomic64_add_return - add and return
* @delta: integer value to add
* @ptr: pointer to type atomic64_t