From afd962a9e8708c571c5c0c4a6d098f931742c229 Mon Sep 17 00:00:00 2001 From: Vitaly Mayatskikh Date: Wed, 30 Jul 2008 13:30:14 +0200 Subject: [PATCH] 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 Signed-off-by: Linus Torvalds --- arch/x86/lib/copy_user_64.S | 2 +- arch/x86/lib/copy_user_nocache_64.S | 3 +-- 2 files changed, 2 insertions(+), 3 deletions(-) diff --git a/arch/x86/lib/copy_user_64.S b/arch/x86/lib/copy_user_64.S index dfdf428975..f118c110af 100644 --- 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 index 40e0e309d2..cb0c112386 100644 --- 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 -- 2.39.5