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Subject[tip:x86/extable] x86, extable: Remove open-coded exception table entries in arch/x86/kernel/entry_64.S
Commit-ID:  d7abc0fa997972ddb6d3c403e03a6eefda0c0881
Gitweb: http://git.kernel.org/tip/d7abc0fa997972ddb6d3c403e03a6eefda0c0881
Author: H. Peter Anvin <hpa@zytor.com>
AuthorDate: Fri, 20 Apr 2012 12:19:50 -0700
Committer: H. Peter Anvin <hpa@zytor.com>
CommitDate: Fri, 20 Apr 2012 13:51:38 -0700

x86, extable: Remove open-coded exception table entries in arch/x86/kernel/entry_64.S

Remove open-coded exception table entries in arch/x86/kernel/entry_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 <hpa@zytor.com>
Cc: David Daney <david.daney@cavium.com>
Link: http://lkml.kernel.org/r/CA%2B55aFyijf43qSu3N9nWHEBwaGbb7T2Oq9A=9EyR=Jtyqfq_cQ@mail.gmail.com
---
arch/x86/kernel/entry_64.S | 16 ++++------------
1 files changed, 4 insertions(+), 12 deletions(-)
diff --git a/arch/x86/kernel/entry_64.S b/arch/x86/kernel/entry_64.S
index cdc79b5..320852d 100644
--- a/arch/x86/kernel/entry_64.S
+++ b/arch/x86/kernel/entry_64.S
@@ -55,6 +55,7 @@
#include <asm/paravirt.h>
#include <asm/ftrace.h>
#include <asm/percpu.h>
+#include <asm/asm.h>
#include <linux/err.h>

/* Avoid __ASSEMBLER__'ifying <linux/audit.h> just for this. */
@@ -900,18 +901,12 @@ restore_args:

irq_return:
INTERRUPT_RETURN
-
- .section __ex_table, "a"
- .quad irq_return, bad_iret
- .previous
+ _ASM_EXTABLE(irq_return, bad_iret)

#ifdef CONFIG_PARAVIRT
ENTRY(native_iret)
iretq
-
- .section __ex_table,"a"
- .quad native_iret, bad_iret
- .previous
+ _ASM_EXTABLE(native_iret, bad_iret)
#endif

.section .fixup,"ax"
@@ -1181,10 +1176,7 @@ gs_change:
CFI_ENDPROC
END(native_load_gs_index)

- .section __ex_table,"a"
- .align 8
- .quad gs_change,bad_gs
- .previous
+ _ASM_EXTABLE(gs_change,bad_gs)
.section .fixup,"ax"
/* running with kernelgs */
bad_gs:
--
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