[PATCH] kprobes: arch_remove_kprobe

Currently arch_remove_kprobes() is only implemented/required for x86_64 and
powerpc.  All other architecture like IA64, i386 and sparc64 implementes a
dummy function which is being called from arch independent kprobes.c file.

This patch removes the dummy functions and replaces it with
#define arch_remove_kprobe(p, s)	do { } while(0)

Signed-off-by: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

6 files changed, 5 insertions, 1 deletions

diff --git a/include/asm-i386/kprobes.h b/include/asm-i386/kprobes.h
index f9e150fa1d44..dc559267ce3e 100644
--- a/include/asm-i386/kprobes.h
+++ b/include/asm-i386/kprobes.h
@@ -40,6 +40,7 @@ typedef u8 kprobe_opcode_t;
 
 #define JPROBE_ENTRY(pentry)    (kprobe_opcode_t *)pentry
 #define ARCH_SUPPORTS_KRETPROBES
+#define arch_remove_kprobe(p, s)        do { } while(0)
 
 void kretprobe_trampoline(void);
 
diff --git a/include/asm-ia64/kprobes.h b/include/asm-ia64/kprobes.h
index 12a0b93020da..698508f4a0cf 100644
--- a/include/asm-ia64/kprobes.h
+++ b/include/asm-ia64/kprobes.h
@@ -89,6 +89,7 @@ struct kprobe_ctlblk {
 #define IP_RELATIVE_PREDICT_OPCODE      (7)
 #define LONG_BRANCH_OPCODE              (0xC)
 #define LONG_CALL_OPCODE                (0xD)
+#define arch_remove_kprobe(p, s)        do { } while(0)
 
 typedef struct kprobe_opcode {
         bundle_t bundle;
diff --git a/include/asm-powerpc/kprobes.h b/include/asm-powerpc/kprobes.h
index 42ece411435a..89dee13c2a4c 100644
--- a/include/asm-powerpc/kprobes.h
+++ b/include/asm-powerpc/kprobes.h
@@ -50,6 +50,7 @@ typedef unsigned int kprobe_opcode_t;
 
 #define ARCH_SUPPORTS_KRETPROBES
 void kretprobe_trampoline(void);
+extern void arch_remove_kprobe(struct kprobe *p, struct semaphore *s);
 
 /* Architecture specific copy of original instruction */
 struct arch_specific_insn {
diff --git a/include/asm-sparc64/kprobes.h b/include/asm-sparc64/kprobes.h
index 1b47e0d2ee93..27fbdcba724b 100644
--- a/include/asm-sparc64/kprobes.h
+++ b/include/asm-sparc64/kprobes.h
@@ -12,6 +12,7 @@ typedef u32 kprobe_opcode_t;
 #define MAX_INSN_SIZE 2
 
 #define JPROBE_ENTRY(pentry)    (kprobe_opcode_t *)pentry
+#define arch_remove_kprobe(p, s)        do { } while(0)
 
 /* Architecture specific copy of original instruction*/
 struct arch_specific_insn {
diff --git a/include/asm-x86_64/kprobes.h b/include/asm-x86_64/kprobes.h
index 9e2532adf42c..3a19ad179220 100644
--- a/include/asm-x86_64/kprobes.h
+++ b/include/asm-x86_64/kprobes.h
@@ -78,6 +78,7 @@ static inline void restore_interrupts(struct pt_regs *regs)
                 local_irq_enable();
 }
 
+extern void arch_remove_kprobe(struct kprobe *p, struct semaphore *s);
 extern int post_kprobe_handler(struct pt_regs *regs);
 extern int kprobe_fault_handler(struct pt_regs *regs, int trapnr);
 extern int kprobe_handler(struct pt_regs *regs);
diff --git a/include/linux/kprobes.h b/include/linux/kprobes.h
index ad6e4fe970fd..59bf240cdb9d 100644
--- a/include/linux/kprobes.h
+++ b/include/linux/kprobes.h
@@ -152,7 +152,6 @@ extern spinlock_t kretprobe_lock;
 extern int arch_prepare_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_kprobes(void);
 extern void show_registers(struct pt_regs *regs);
 extern kprobe_opcode_t *get_insn_slot(void);