x86: wrong register was used in align macro

New ALIGN_DESTINATION macro has sad typo: r8d register was used instead of ecx in fixup section. This can be considered as a regression. Register ecx was also wrongly loaded with value in r8d in copy_user_nocache routine. Signed-off-by: Vitaly Mayatskikh <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
maurer · Jul 30, 2008 · afd962a · afd962a
1 parent bd3e64c
commit afd962a
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Showing 2 changed files with 2 additions and 3 deletions.
diff --git a/arch/x86/lib/copy_user_64.S b/arch/x86/lib/copy_user_64.S
@@ -52,7 +52,7 @@
 	jnz 100b
 102:
 	.section .fixup,"ax"
-103:	addl %r8d,%edx			/* ecx is zerorest also */
+103:	addl %ecx,%edx			/* ecx is zerorest also */
 	jmp copy_user_handle_tail
 	.previous
 

diff --git a/arch/x86/lib/copy_user_nocache_64.S b/arch/x86/lib/copy_user_nocache_64.S
@@ -32,7 +32,7 @@
 	jnz 100b
 102:
 	.section .fixup,"ax"
-103:	addl %r8d,%edx			/* ecx is zerorest also */
+103:	addl %ecx,%edx			/* ecx is zerorest also */
 	jmp copy_user_handle_tail
 	.previous
 
@@ -108,7 +108,6 @@ ENTRY(__copy_user_nocache)
 	jmp 60f
 50:	movl %ecx,%edx
 60:	sfence
-	movl %r8d,%ecx
 	jmp copy_user_handle_tail
 	.previous