Merge branch 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

* 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86: Mark atomic irq ops raw for 32bit legacy
  x86: Merge show_regs()
  x86: Macroise x86 cache descriptors
  x86-32: clean up rwsem inline asm statements
  x86: Merge asm/atomic_{32,64}.h
  x86: Sync asm/atomic_32.h and asm/atomic_64.h
  x86: Split atomic64_t functions into seperate headers
  x86-64: Modify memcpy()/memset() alternatives mechanism
  x86-64: Modify copy_user_generic() alternatives mechanism
  x86: Lift restriction on the location of FIX_BTMAP_*
  x86, core: Optimize hweight32()

3 files changed, 14 insertions, 33 deletions

diff --git a/arch/x86/lib/copy_user_64.S b/arch/x86/lib/copy_user_64.S
index cf889d4e076..71100c98e33 100644
--- a/arch/x86/lib/copy_user_64.S
+++ b/arch/x86/lib/copy_user_64.S
@@ -90,12 +90,6 @@ ENTRY(_copy_from_user)
 	CFI_ENDPROC
 ENDPROC(_copy_from_user)
 
-ENTRY(copy_user_generic)
-	CFI_STARTPROC
-	ALTERNATIVE_JUMP X86_FEATURE_REP_GOOD,copy_user_generic_unrolled,copy_user_generic_string
-	CFI_ENDPROC
-ENDPROC(copy_user_generic)
-
 	.section .fixup,"ax"
 	/* must zero dest */
 ENTRY(bad_from_user)
diff --git a/arch/x86/lib/memcpy_64.S b/arch/x86/lib/memcpy_64.S
index ad5441ed1b5..f82e884928a 100644
--- a/arch/x86/lib/memcpy_64.S
+++ b/arch/x86/lib/memcpy_64.S
@@ -20,12 +20,11 @@
 /*
  * memcpy_c() - fast string ops (REP MOVSQ) based variant.
  *
- * Calls to this get patched into the kernel image via the
+ * This gets patched over the unrolled variant (below) via the
  * alternative instructions framework:
  */
-	ALIGN
-memcpy_c:
-	CFI_STARTPROC
+	.section .altinstr_replacement, "ax", @progbits
+.Lmemcpy_c:
 	movq %rdi, %rax
 
 	movl %edx, %ecx
@@ -35,8 +34,8 @@ memcpy_c:
 	movl %edx, %ecx
 	rep movsb
 	ret
-	CFI_ENDPROC
-ENDPROC(memcpy_c)
+.Lmemcpy_e:
+	.previous
 
 ENTRY(__memcpy)
 ENTRY(memcpy)
@@ -128,16 +127,10 @@ ENDPROC(__memcpy)
 	 * It is also a lot simpler. Use this when possible:
 	 */
 
-	.section .altinstr_replacement, "ax"
-1:	.byte 0xeb				/* jmp <disp8> */
-	.byte (memcpy_c - memcpy) - (2f - 1b)	/* offset */
-2:
-	.previous
-
 	.section .altinstructions, "a"
 	.align 8
 	.quad memcpy
-	.quad 1b
+	.quad .Lmemcpy_c
 	.byte X86_FEATURE_REP_GOOD
 
 	/*
@@ -145,6 +138,6 @@ ENDPROC(__memcpy)
 	 * so it is silly to overwrite itself with nops - reboot is the
 	 * only outcome...
 	 */
-	.byte 2b - 1b
-	.byte 2b - 1b
+	.byte .Lmemcpy_e - .Lmemcpy_c
+	.byte .Lmemcpy_e - .Lmemcpy_c
 	.previous
diff --git a/arch/x86/lib/memset_64.S b/arch/x86/lib/memset_64.S
index 2c5948116bd..e88d3b81644 100644
--- a/arch/x86/lib/memset_64.S
+++ b/arch/x86/lib/memset_64.S
@@ -12,9 +12,8 @@
  * 
  * rax   original destination
  */	
-	ALIGN
-memset_c:
-	CFI_STARTPROC
+	.section .altinstr_replacement, "ax", @progbits
+.Lmemset_c:
 	movq %rdi,%r9
 	movl %edx,%r8d
 	andl $7,%r8d
@@ -29,8 +28,8 @@ memset_c:
 	rep stosb
 	movq %r9,%rax
 	ret
-	CFI_ENDPROC
-ENDPROC(memset_c)
+.Lmemset_e:
+	.previous
 
 ENTRY(memset)
 ENTRY(__memset)
@@ -118,16 +117,11 @@ ENDPROC(__memset)
 
 #include <asm/cpufeature.h>
 
-	.section .altinstr_replacement,"ax"
-1:	.byte 0xeb				/* jmp <disp8> */
-	.byte (memset_c - memset) - (2f - 1b)	/* offset */
-2:
-	.previous
 	.section .altinstructions,"a"
 	.align 8
 	.quad memset
-	.quad 1b
+	.quad .Lmemset_c
 	.byte X86_FEATURE_REP_GOOD
 	.byte .Lfinal - memset
-	.byte 2b - 1b
+	.byte .Lmemset_e - .Lmemset_c
 	.previous