sh: kprobes: Remove unused variables in kprobe_exceptions_notify()

kbuild reports the following warning:

   arch/sh/kernel/kprobes.c: In function 'kprobe_exceptions_notify':
>> arch/sh/kernel/kprobes.c:412:24: warning: variable 'p' set but not used [-Wunused-but-set-variable]
     412 |         struct kprobe *p = NULL;
         |                        ^

The variable 'p' is indeed unused since the commit fa5a24b16f94
("sh/kprobes: Don't call the ->break_handler() in SH kprobes code")

Remove that variable along with 'kprobe_opcode_t *addr' which also
becomes unused after 'p' is removed.

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202505151341.EuRFR22l-lkp@intel.com/
Fixes: fa5a24b16f94 ("sh/kprobes: Don't call the ->break_handler() in SH kprobes code")
Signed-off-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Reviewed-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>

diff --git a/arch/sh/kernel/kprobes.c b/arch/sh/kernel/kprobes.c
index 49c4ffd782d6d6c583dd4de1f4021898fc303381..a250fb1b9420f9e070b728ba1fad35ef01545700 100644 (file)
--- a/arch/sh/kernel/kprobes.c
+++ b/arch/sh/kernel/kprobes.c
@@ -404,13 +404,10 @@ int __kprobes kprobe_fault_handler(struct pt_regs *regs, int trapnr)
 int __kprobes kprobe_exceptions_notify(struct notifier_block *self,
                                       unsigned long val, void *data)
 {
-       struct kprobe *p = NULL;
        struct die_args *args = (struct die_args *)data;
        int ret = NOTIFY_DONE;
-       kprobe_opcode_t *addr = NULL;
        struct kprobe_ctlblk *kcb = get_kprobe_ctlblk();
 
-       addr = (kprobe_opcode_t *) (args->regs->pc);
        if (val == DIE_TRAP &&
            args->trapnr == (BREAKPOINT_INSTRUCTION & 0xff)) {
                if (!kprobe_running()) {
@@ -421,7 +418,6 @@ int __kprobes kprobe_exceptions_notify(struct notifier_block *self,
                                ret = NOTIFY_DONE;
                        }
                } else {
-                       p = get_kprobe(addr);
                        if ((kcb->kprobe_status == KPROBE_HIT_SS) ||
                            (kcb->kprobe_status == KPROBE_REENTER)) {
                                if (post_kprobe_handler(args->regs))