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authorHeiko Carstens <heiko.carstens@de.ibm.com>2013-09-13 13:59:26 +0200
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2013-10-24 17:16:49 +0200
commita882b3b0676fa42ab29c492e56749ab00ca95c0d (patch)
tree16d6a6c02078f51c019953dfa1288977ac6c0ce5 /arch/s390/kernel/kprobes.c
parent0f20822a69148f53bbafbe6ee3d43e8eff0bad27 (diff)
downloadop-kernel-dev-a882b3b0676fa42ab29c492e56749ab00ca95c0d.zip
op-kernel-dev-a882b3b0676fa42ab29c492e56749ab00ca95c0d.tar.gz
s390/kprobes: use insn_length helper function
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/kernel/kprobes.c')
-rw-r--r--arch/s390/kernel/kprobes.c9
1 files changed, 5 insertions, 4 deletions
diff --git a/arch/s390/kernel/kprobes.c b/arch/s390/kernel/kprobes.c
index 9f99ad7..c52fdf2 100644
--- a/arch/s390/kernel/kprobes.c
+++ b/arch/s390/kernel/kprobes.c
@@ -26,11 +26,12 @@
#include <linux/stop_machine.h>
#include <linux/kdebug.h>
#include <linux/uaccess.h>
-#include <asm/cacheflush.h>
-#include <asm/sections.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/hardirq.h>
+#include <asm/cacheflush.h>
+#include <asm/sections.h>
+#include <asm/dis.h>
DEFINE_PER_CPU(struct kprobe *, current_kprobe);
DEFINE_PER_CPU(struct kprobe_ctlblk, kprobe_ctlblk);
@@ -208,7 +209,7 @@ static void __kprobes copy_instruction(struct kprobe *p)
s64 disp, new_disp;
u64 addr, new_addr;
- memcpy(p->ainsn.insn, p->addr, ((p->opcode >> 14) + 3) & -2);
+ memcpy(p->ainsn.insn, p->addr, insn_length(p->opcode >> 8));
if (!is_insn_relative_long(p->ainsn.insn))
return;
/*
@@ -608,7 +609,7 @@ static void __kprobes resume_execution(struct kprobe *p, struct pt_regs *regs)
ip += (unsigned long) p->addr - (unsigned long) p->ainsn.insn;
if (fixup & FIXUP_BRANCH_NOT_TAKEN) {
- int ilen = ((p->ainsn.insn[0] >> 14) + 3) & -2;
+ int ilen = insn_length(p->ainsn.insn[0] >> 8);
if (ip - (unsigned long) p->ainsn.insn == ilen)
ip = (unsigned long) p->addr + ilen;
}
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