Commit-ID: 50a011f6409e888d5f41343024d24885281f048c Gitweb: http://git.kernel.org/tip/50a011f6409e888d5f41343024d24885281f048c Author: Borislav Petkov <borislav.pet...@amd.com> AuthorDate: Thu, 20 Sep 2012 14:43:54 +0200 Committer: Ingo Molnar <mi...@kernel.org> CommitDate: Thu, 20 Sep 2012 14:48:16 +0200
kprobes/x86: Move skip_singlestep up I get this warning: arch/x86/kernel/kprobes.c:544:23: warning: ‘skip_singlestep’ declared ‘static’ but never defined on tip/auto-latest. Put the skip_singlestep function declaration up, in KPROBES_CAN_USE_FTRACE and drop the superfluous forward declaration. Signed-off-by: Borislav Petkov <borislav.pet...@amd.com> Acked-by: Masami Hiramatsu <masami.hiramatsu...@hitachi.com> Cc: Steven Rostedt <rost...@goodmis.org> Link: http://lkml.kernel.org/r/1348145034-16603-1-git-send-email...@amd64.org Signed-off-by: Ingo Molnar <mi...@kernel.org> --- arch/x86/kernel/kprobes.c | 32 ++++++++++++++++---------------- 1 files changed, 16 insertions(+), 16 deletions(-) diff --git a/arch/x86/kernel/kprobes.c b/arch/x86/kernel/kprobes.c index b7c2a85..57916c0 100644 --- a/arch/x86/kernel/kprobes.c +++ b/arch/x86/kernel/kprobes.c @@ -541,8 +541,23 @@ reenter_kprobe(struct kprobe *p, struct pt_regs *regs, struct kprobe_ctlblk *kcb return 1; } +#ifdef KPROBES_CAN_USE_FTRACE static void __kprobes skip_singlestep(struct kprobe *p, struct pt_regs *regs, - struct kprobe_ctlblk *kcb); + struct kprobe_ctlblk *kcb) +{ + /* + * Emulate singlestep (and also recover regs->ip) + * as if there is a 5byte nop + */ + regs->ip = (unsigned long)p->addr + MCOUNT_INSN_SIZE; + if (unlikely(p->post_handler)) { + kcb->kprobe_status = KPROBE_HIT_SSDONE; + p->post_handler(p, regs, 0); + } + __this_cpu_write(current_kprobe, NULL); +} +#endif + /* * Interrupts are disabled on entry as trap3 is an interrupt gate and they * remain disabled throughout this function. @@ -1061,21 +1076,6 @@ int __kprobes longjmp_break_handler(struct kprobe *p, struct pt_regs *regs) } #ifdef KPROBES_CAN_USE_FTRACE -static void __kprobes skip_singlestep(struct kprobe *p, struct pt_regs *regs, - struct kprobe_ctlblk *kcb) -{ - /* - * Emulate singlestep (and also recover regs->ip) - * as if there is a 5byte nop - */ - regs->ip = (unsigned long)p->addr + MCOUNT_INSN_SIZE; - if (unlikely(p->post_handler)) { - kcb->kprobe_status = KPROBE_HIT_SSDONE; - p->post_handler(p, regs, 0); - } - __this_cpu_write(current_kprobe, NULL); -} - /* Ftrace callback handler for kprobes */ void __kprobes kprobe_ftrace_handler(unsigned long ip, unsigned long parent_ip, struct ftrace_ops *ops, struct pt_regs *regs) -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
