From: Geert Uytterhoeven geert+renesas@glider.be
stable inclusion from stable-v6.6.33 commit 78a12934b7211f82f26ce8cfcbd360e3f704041a category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/IAD6H2
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=...
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[ Upstream commit 1422ae080b66134fe192082d9b721ab7bd93fcc5 ]
arch/sh/kernel/kprobes.c:52:16: warning: no previous prototype for 'arch_copy_kprobe' [-Wmissing-prototypes]
Although SH kprobes support was only merged in v2.6.28, it missed the earlier removal of the arch_copy_kprobe() callback in v2.6.15.
Based on the powerpc part of commit 49a2a1b83ba6fa40 ("[PATCH] kprobes: changed from using spinlock to mutex").
Fixes: d39f5450146ff39f ("sh: Add kprobes support.") Signed-off-by: Geert Uytterhoeven geert+renesas@glider.be Reviewed-by: John Paul Adrian Glaubitz glaubitz@physik.fu-berlin.de Link: https://lore.kernel.org/r/717d47a19689cc944fae6e981a1ad7cae1642c89.170932652... Signed-off-by: John Paul Adrian Glaubitz glaubitz@physik.fu-berlin.de Signed-off-by: Sasha Levin sashal@kernel.org Signed-off-by: Wang Hai wanghai38@huawei.com --- arch/sh/kernel/kprobes.c | 7 +------ 1 file changed, 1 insertion(+), 6 deletions(-)
diff --git a/arch/sh/kernel/kprobes.c b/arch/sh/kernel/kprobes.c index aed1ea8e2c2f..74051b8ddf3e 100644 --- a/arch/sh/kernel/kprobes.c +++ b/arch/sh/kernel/kprobes.c @@ -44,17 +44,12 @@ int __kprobes arch_prepare_kprobe(struct kprobe *p) if (OPCODE_RTE(opcode)) return -EFAULT; /* Bad breakpoint */
+ memcpy(p->ainsn.insn, p->addr, MAX_INSN_SIZE * sizeof(kprobe_opcode_t)); p->opcode = opcode;
return 0; }
-void __kprobes arch_copy_kprobe(struct kprobe *p) -{ - memcpy(p->ainsn.insn, p->addr, MAX_INSN_SIZE * sizeof(kprobe_opcode_t)); - p->opcode = *p->addr; -} - void __kprobes arch_arm_kprobe(struct kprobe *p) { *p->addr = BREAKPOINT_INSTRUCTION;