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Subject[PATCH 16/31] Constify struct kgdb_arch for 2.6.32 v1
From: Emese Revfy <re.emese@gmail.com>

Constify struct kgdb_arch with some exceptions.

Signed-off-by: Emese Revfy <re.emese@gmail.com>
---
arch/arm/kernel/kgdb.c | 2 +-
arch/blackfin/kernel/kgdb.c | 2 +-
arch/mips/kernel/kgdb.c | 1 +
arch/powerpc/kernel/kgdb.c | 4 ++--
arch/sh/kernel/kgdb.c | 2 +-
arch/sparc/kernel/kgdb_32.c | 2 +-
arch/sparc/kernel/kgdb_64.c | 2 +-
arch/x86/kernel/kgdb.c | 2 +-
include/linux/kgdb.h | 2 +-
9 files changed, 10 insertions(+), 9 deletions(-)
diff --git a/arch/arm/kernel/kgdb.c b/arch/arm/kernel/kgdb.c
index ba8ccfe..2dc34dc 100644
--- a/arch/arm/kernel/kgdb.c
+++ b/arch/arm/kernel/kgdb.c
@@ -190,7 +190,7 @@ void kgdb_arch_exit(void)
* and we handle the normal undef case within the do_undefinstr
* handler.
*/
-struct kgdb_arch arch_kgdb_ops = {
+const struct kgdb_arch arch_kgdb_ops = {
#ifndef __ARMEB__
.gdb_bpt_instr = {0xfe, 0xde, 0xff, 0xe7}
#else /* ! __ARMEB__ */
diff --git a/arch/blackfin/kernel/kgdb.c b/arch/blackfin/kernel/kgdb.c
index cce79d0..c406c85 100644
--- a/arch/blackfin/kernel/kgdb.c
+++ b/arch/blackfin/kernel/kgdb.c
@@ -428,7 +428,7 @@ int kgdb_arch_handle_exception(int vector, int signo,
return -1; /* this means that we do not want to exit from the handler */
}

-struct kgdb_arch arch_kgdb_ops = {
+const struct kgdb_arch arch_kgdb_ops = {
.gdb_bpt_instr = {0xa1},
#ifdef CONFIG_SMP
.flags = KGDB_HW_BREAKPOINT|KGDB_THR_PROC_SWAP,
diff --git a/arch/mips/kernel/kgdb.c b/arch/mips/kernel/kgdb.c
index 50c9bb8..efdd5f8 100644
--- a/arch/mips/kernel/kgdb.c
+++ b/arch/mips/kernel/kgdb.c
@@ -245,6 +245,7 @@ int kgdb_arch_handle_exception(int vector, int signo, int err_code,
return -1;
}

+/* cannot be const */
struct kgdb_arch arch_kgdb_ops;

/*
diff --git a/arch/powerpc/kernel/kgdb.c b/arch/powerpc/kernel/kgdb.c
index 641c74b..8339ad7 100644
--- a/arch/powerpc/kernel/kgdb.c
+++ b/arch/powerpc/kernel/kgdb.c
@@ -126,7 +126,7 @@ static int kgdb_handle_breakpoint(struct pt_regs *regs)
if (kgdb_handle_exception(0, SIGTRAP, 0, regs) != 0)
return 0;

- if (*(u32 *) (regs->nip) == *(u32 *) (&arch_kgdb_ops.gdb_bpt_instr))
+ if (*(u32 *) (regs->nip) == *(const u32 *) (&arch_kgdb_ops.gdb_bpt_instr))
regs->nip += 4;

return 1;
@@ -353,7 +353,7 @@ int kgdb_arch_handle_exception(int vector, int signo, int err_code,
/*
* Global data
*/
-struct kgdb_arch arch_kgdb_ops = {
+const struct kgdb_arch arch_kgdb_ops = {
.gdb_bpt_instr = {0x7d, 0x82, 0x10, 0x08},
};

diff --git a/arch/sh/kernel/kgdb.c b/arch/sh/kernel/kgdb.c
index 3e532d0..9faa306 100644
--- a/arch/sh/kernel/kgdb.c
+++ b/arch/sh/kernel/kgdb.c
@@ -271,7 +271,7 @@ void kgdb_arch_exit(void)
{
}

-struct kgdb_arch arch_kgdb_ops = {
+const struct kgdb_arch arch_kgdb_ops = {
/* Breakpoint instruction: trapa #0x3c */
#ifdef CONFIG_CPU_LITTLE_ENDIAN
.gdb_bpt_instr = { 0x3c, 0xc3 },
diff --git a/arch/sparc/kernel/kgdb_32.c b/arch/sparc/kernel/kgdb_32.c
index 04df4ed..55c4b6e 100644
--- a/arch/sparc/kernel/kgdb_32.c
+++ b/arch/sparc/kernel/kgdb_32.c
@@ -158,7 +158,7 @@ void kgdb_arch_exit(void)
{
}

-struct kgdb_arch arch_kgdb_ops = {
+const struct kgdb_arch arch_kgdb_ops = {
/* Breakpoint instruction: ta 0x7d */
.gdb_bpt_instr = { 0x91, 0xd0, 0x20, 0x7d },
};
diff --git a/arch/sparc/kernel/kgdb_64.c b/arch/sparc/kernel/kgdb_64.c
index f5a0fd4..d886f71 100644
--- a/arch/sparc/kernel/kgdb_64.c
+++ b/arch/sparc/kernel/kgdb_64.c
@@ -180,7 +180,7 @@ void kgdb_arch_exit(void)
{
}

-struct kgdb_arch arch_kgdb_ops = {
+const struct kgdb_arch arch_kgdb_ops = {
/* Breakpoint instruction: ta 0x72 */
.gdb_bpt_instr = { 0x91, 0xd0, 0x20, 0x72 },
};
diff --git a/arch/x86/kernel/kgdb.c b/arch/x86/kernel/kgdb.c
index 8d82a77..92e532c 100644
--- a/arch/x86/kernel/kgdb.c
+++ b/arch/x86/kernel/kgdb.c
@@ -573,7 +573,7 @@ unsigned long kgdb_arch_pc(int exception, struct pt_regs *regs)
return instruction_pointer(regs);
}

-struct kgdb_arch arch_kgdb_ops = {
+const struct kgdb_arch arch_kgdb_ops = {
/* Breakpoint instruction: */
.gdb_bpt_instr = { 0xcc },
.flags = KGDB_HW_BREAKPOINT,
diff --git a/include/linux/kgdb.h b/include/linux/kgdb.h
index 6adcc29..360613c 100644
--- a/include/linux/kgdb.h
+++ b/include/linux/kgdb.h
@@ -259,7 +259,7 @@ struct kgdb_io {
void (*post_exception) (void);
};

-extern struct kgdb_arch arch_kgdb_ops;
+extern const struct kgdb_arch arch_kgdb_ops;

extern unsigned long __weak kgdb_arch_pc(int exception, struct pt_regs *regs);



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