From 6772926bef3c9f0ec761b39e5702535471fff70b Mon Sep 17 00:00:00 2001
From: Rusty Lynch <rusty.lynch@intel.com>
Date: Tue, 5 Jul 2005 18:54:50 -0700
Subject: [PATCH] [PATCH] kprobes: fix namespace problem and sparc64 build

The following renames arch_init, a kprobes function for performing any
architecture specific initialization, to arch_init_kprobes in order to
cleanup the namespace.

Also, this patch adds arch_init_kprobes to sparc64 to fix the sparc64 kprobes
build from the last return probe patch.

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---
 arch/i386/kernel/kprobes.c    | 2 +-
 arch/ia64/kernel/kprobes.c    | 2 +-
 arch/ppc64/kernel/kprobes.c   | 2 +-
 arch/sparc64/kernel/kprobes.c | 5 +++++
 arch/x86_64/kernel/kprobes.c  | 2 +-
 include/linux/kprobes.h       | 2 +-
 kernel/kprobes.c              | 2 +-
 7 files changed, 11 insertions(+), 6 deletions(-)

diff --git a/arch/i386/kernel/kprobes.c b/arch/i386/kernel/kprobes.c
index fc8b175217618..a6d8c45961d3c 100644
--- a/arch/i386/kernel/kprobes.c
+++ b/arch/i386/kernel/kprobes.c
@@ -537,7 +537,7 @@ static struct kprobe trampoline_p = {
 	.pre_handler = trampoline_probe_handler
 };
 
-int __init arch_init(void)
+int __init arch_init_kprobes(void)
 {
 	return register_kprobe(&trampoline_p);
 }
diff --git a/arch/ia64/kernel/kprobes.c b/arch/ia64/kernel/kprobes.c
index 3aa3167edbec2..884f5cd27d8a6 100644
--- a/arch/ia64/kernel/kprobes.c
+++ b/arch/ia64/kernel/kprobes.c
@@ -713,7 +713,7 @@ static struct kprobe trampoline_p = {
 	.pre_handler = trampoline_probe_handler
 };
 
-int __init arch_init(void)
+int __init arch_init_kprobes(void)
 {
 	trampoline_p.addr =
 		(kprobe_opcode_t *)((struct fnptr *)kretprobe_trampoline)->ip;
diff --git a/arch/ppc64/kernel/kprobes.c b/arch/ppc64/kernel/kprobes.c
index 1d2ff6d6b0b36..a3d519518fb8d 100644
--- a/arch/ppc64/kernel/kprobes.c
+++ b/arch/ppc64/kernel/kprobes.c
@@ -444,7 +444,7 @@ static struct kprobe trampoline_p = {
 	.pre_handler = trampoline_probe_handler
 };
 
-int __init arch_init(void)
+int __init arch_init_kprobes(void)
 {
 	return register_kprobe(&trampoline_p);
 }
diff --git a/arch/sparc64/kernel/kprobes.c b/arch/sparc64/kernel/kprobes.c
index bdac631cf0115..bbf11f85dab15 100644
--- a/arch/sparc64/kernel/kprobes.c
+++ b/arch/sparc64/kernel/kprobes.c
@@ -433,3 +433,8 @@ int longjmp_break_handler(struct kprobe *p, struct pt_regs *regs)
 	return 0;
 }
 
+/* architecture specific initialization */
+int arch_init_kprobes(void)
+{
+	return 0;
+}
diff --git a/arch/x86_64/kernel/kprobes.c b/arch/x86_64/kernel/kprobes.c
index acd2a778ebe6d..5c6dc70514829 100644
--- a/arch/x86_64/kernel/kprobes.c
+++ b/arch/x86_64/kernel/kprobes.c
@@ -682,7 +682,7 @@ static struct kprobe trampoline_p = {
 	.pre_handler = trampoline_probe_handler
 };
 
-int __init arch_init(void)
+int __init arch_init_kprobes(void)
 {
 	return register_kprobe(&trampoline_p);
 }
diff --git a/include/linux/kprobes.h b/include/linux/kprobes.h
index b7a194c4362ac..e050fc2d4c261 100644
--- a/include/linux/kprobes.h
+++ b/include/linux/kprobes.h
@@ -155,7 +155,7 @@ extern void arch_copy_kprobe(struct kprobe *p);
 extern void arch_arm_kprobe(struct kprobe *p);
 extern void arch_disarm_kprobe(struct kprobe *p);
 extern void arch_remove_kprobe(struct kprobe *p);
-extern int arch_init(void);
+extern int arch_init_kprobes(void);
 extern void show_registers(struct pt_regs *regs);
 extern kprobe_opcode_t *get_insn_slot(void);
 extern void free_insn_slot(kprobe_opcode_t *slot);
diff --git a/kernel/kprobes.c b/kernel/kprobes.c
index 90c0e82b650c0..b0237122b24e1 100644
--- a/kernel/kprobes.c
+++ b/kernel/kprobes.c
@@ -574,7 +574,7 @@ static int __init init_kprobes(void)
 		INIT_HLIST_HEAD(&kretprobe_inst_table[i]);
 	}
 
-	err = arch_init();
+	err = arch_init_kprobes();
 	if (!err)
 		err = register_die_notifier(&kprobe_exceptions_nb);
 
-- 
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