sh/kprobes: Don't call the ->break_handler() in SH kprobes code

Don't call the ->break_handler() from the SH kprobes code,
because it was only used by jprobes which got removed.

Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Ananth N Mavinakayanahalli <ananth@linux.vnet.ibm.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rich Felker <dalias@libc.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: linux-arch@vger.kernel.org
Cc: linux-sh@vger.kernel.org
Link: https://lore.kernel.org/lkml/152942488763.15209.7791710414058030809.stgit@devbox
Signed-off-by: Ingo Molnar <mingo@kernel.org>

diff --git a/arch/sh/kernel/kprobes.c b/arch/sh/kernel/kprobes.c
index 2b5e588..4fafe0c 100644 (file)
--- a/arch/sh/kernel/kprobes.c
+++ b/arch/sh/kernel/kprobes.c
@@ -248,11 +248,6 @@ static int __kprobes kprobe_handler(struct pt_regs *regs)
                        prepare_singlestep(p, regs);
                        kcb->kprobe_status = KPROBE_REENTER;
                        return 1;
-               } else {
-                       p = __this_cpu_read(current_kprobe);
-                       if (p->break_handler && p->break_handler(p, regs)) {
-                               goto ss_probe;
-                       }
                }
                goto no_kprobe;
        }
@@ -281,7 +276,6 @@ static int __kprobes kprobe_handler(struct pt_regs *regs)
                /* handler has already set things up, so skip ss setup */
                return 1;
 
-ss_probe:
        prepare_singlestep(p, regs);
        kcb->kprobe_status = KPROBE_HIT_SS;
        return 1;
@@ -508,14 +502,8 @@ int __kprobes kprobe_exceptions_notify(struct notifier_block *self,
                                if (post_kprobe_handler(args->regs))
                                        ret = NOTIFY_STOP;
                        } else {
-                               if (kprobe_handler(args->regs)) {
+                               if (kprobe_handler(args->regs))
                                        ret = NOTIFY_STOP;
-                               } else {
-                                       p = __this_cpu_read(current_kprobe);
-                                       if (p->break_handler &&
-                                           p->break_handler(p, args->regs))
-                                               ret = NOTIFY_STOP;
-                               }
                        }
                }
        }