x86, pvclock: Remove leftover scale_delta() function

Commit 92580d64e16402762e2acc3022f065397c780425
("x86: pvclock: Move scale_delta into common header")
forgot to remove scale_delta.

Signed-off-by: Kusanagi Kouichi <slash@ac.auone-net.jp>
Cc: Zachary Amsden <zamsden@redhat.com>
Cc: Marcelo Tosatti <mtosatti@redhat.com>
Cc: Glauber Costa <glommer@redhat.com>
LKML-Reference: <20101105110444.BAF6D6FC03B@msa105.auone-net.jp>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

diff --git a/arch/x86/kernel/pvclock.c b/arch/x86/kernel/pvclock.c
index bab3b9e..008b91e 100644 (file)
--- a/arch/x86/kernel/pvclock.c
+++ b/arch/x86/kernel/pvclock.c
@@ -41,44 +41,6 @@ void pvclock_set_flags(u8 flags)
        valid_flags = flags;
 }
 
-/*
- * Scale a 64-bit delta by scaling and multiplying by a 32-bit fraction,
- * yielding a 64-bit result.
- */
-static inline u64 scale_delta(u64 delta, u32 mul_frac, int shift)
-{
-       u64 product;
-#ifdef __i386__
-       u32 tmp1, tmp2;
-#endif
-
-       if (shift < 0)
-               delta >>= -shift;
-       else
-               delta <<= shift;
-
-#ifdef __i386__
-       __asm__ (
-               "mul  %5       ; "
-               "mov  %4,%%eax ; "
-               "mov  %%edx,%4 ; "
-               "mul  %5       ; "
-               "xor  %5,%5    ; "
-               "add  %4,%%eax ; "
-               "adc  %5,%%edx ; "
-               : "=A" (product), "=r" (tmp1), "=r" (tmp2)
-               : "a" ((u32)delta), "1" ((u32)(delta >> 32)), "2" (mul_frac) );
-#elif defined(__x86_64__)
-       __asm__ (
-               "mul %%rdx ; shrd $32,%%rdx,%%rax"
-               : "=a" (product) : "0" (delta), "d" ((u64)mul_frac) );
-#else
-#error implement me!
-#endif
-
-       return product;
-}
-
 static u64 pvclock_get_nsec_offset(struct pvclock_shadow_time *shadow)
 {
        u64 delta = native_read_tsc() - shadow->tsc_timestamp;