From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from shadbolt.e.decadent.org.uk ([88.96.1.126]:45238 "EHLO shadbolt.e.decadent.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758086AbcC2UE6 (ORCPT ); Tue, 29 Mar 2016 16:04:58 -0400 Content-Type: text/plain; charset="UTF-8" Content-Disposition: inline Content-Transfer-Encoding: 8bit MIME-Version: 1.0 From: Ben Hutchings To: linux-kernel@vger.kernel.org, stable@vger.kernel.org CC: akpm@linux-foundation.org, "David Daney" , "H. Peter Anvin" Date: Tue, 29 Mar 2016 20:18:22 +0100 Message-ID: Subject: [PATCH 3.2 22/62] x86, extable: Remove open-coded exception table entries in arch/x86/lib/copy_user_nocache_64.S In-Reply-To: Sender: stable-owner@vger.kernel.org List-ID: 3.2.79-rc1 review patch. If anyone has any objections, please let me know. ------------------ From: "H. Peter Anvin" commit 0d8559feafbc9dc5a2c17ba42aea7de824b18308 upstream. Remove open-coded exception table entries in arch/x86/lib/copy_user_nocache_64.S, and replace them with _ASM_EXTABLE() macros; this will allow us to change the format and type of the exception table entries. Signed-off-by: H. Peter Anvin Cc: David Daney Link: http://lkml.kernel.org/r/CA%2B55aFyijf43qSu3N9nWHEBwaGbb7T2Oq9A=9EyR=Jtyqfq_cQ@mail.gmail.com Signed-off-by: Ben Hutchings --- arch/x86/lib/copy_user_nocache_64.S | 50 +++++++++++++++++-------------------- 1 file changed, 23 insertions(+), 27 deletions(-) --- a/arch/x86/lib/copy_user_nocache_64.S +++ b/arch/x86/lib/copy_user_nocache_64.S @@ -14,6 +14,7 @@ #include #include #include +#include .macro ALIGN_DESTINATION #ifdef FIX_ALIGNMENT @@ -36,11 +37,8 @@ jmp copy_user_handle_tail .previous - .section __ex_table,"a" - .align 8 - .quad 100b,103b - .quad 101b,103b - .previous + _ASM_EXTABLE(100b,103b) + _ASM_EXTABLE(101b,103b) #endif .endm @@ -111,27 +109,25 @@ ENTRY(__copy_user_nocache) jmp copy_user_handle_tail .previous - .section __ex_table,"a" - .quad 1b,30b - .quad 2b,30b - .quad 3b,30b - .quad 4b,30b - .quad 5b,30b - .quad 6b,30b - .quad 7b,30b - .quad 8b,30b - .quad 9b,30b - .quad 10b,30b - .quad 11b,30b - .quad 12b,30b - .quad 13b,30b - .quad 14b,30b - .quad 15b,30b - .quad 16b,30b - .quad 18b,40b - .quad 19b,40b - .quad 21b,50b - .quad 22b,50b - .previous + _ASM_EXTABLE(1b,30b) + _ASM_EXTABLE(2b,30b) + _ASM_EXTABLE(3b,30b) + _ASM_EXTABLE(4b,30b) + _ASM_EXTABLE(5b,30b) + _ASM_EXTABLE(6b,30b) + _ASM_EXTABLE(7b,30b) + _ASM_EXTABLE(8b,30b) + _ASM_EXTABLE(9b,30b) + _ASM_EXTABLE(10b,30b) + _ASM_EXTABLE(11b,30b) + _ASM_EXTABLE(12b,30b) + _ASM_EXTABLE(13b,30b) + _ASM_EXTABLE(14b,30b) + _ASM_EXTABLE(15b,30b) + _ASM_EXTABLE(16b,30b) + _ASM_EXTABLE(18b,40b) + _ASM_EXTABLE(19b,40b) + _ASM_EXTABLE(21b,50b) + _ASM_EXTABLE(22b,50b) CFI_ENDPROC ENDPROC(__copy_user_nocache)