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Message-ID: <1425034373-14511-1-git-send-email-hekuang@huawei.com> Date: Fri, 27 Feb 2015 18:52:53 +0800 From: He Kuang <hekuang@...wei.com> To: <masami.hiramatsu.pt@...achi.com>, <acme@...nel.org>, <mingo@...hat.com> CC: <wangnan0@...wei.com>, <linux-kernel@...r.kernel.org> Subject: [PATCH] perf: Fix a precedence bug The minus operator has higher precedence than ?: Add parentheses around ?: fix this. Before this patch: $ echo 'p:myprobe do_sys_open' > /sys/kernel/debug/tracing/kprobe_events $ perf probe -l -k ../vmlinux kprobes:myprobe (on do_sys_open) After this patch: $ echo 'p:myprobe do_sys_open' > /sys/kernel/debug/tracing/kprobe_events $ perf probe -l -k ../vmlinux kprobes:myprobe (on do_sys_open@...ux.git/fs/open.c) Signed-off-by: He Kuang <hekuang@...wei.com> --- tools/perf/util/probe-event.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c index 919937e..bed8d0f 100644 --- a/tools/perf/util/probe-event.c +++ b/tools/perf/util/probe-event.c @@ -150,7 +150,7 @@ static u64 kernel_get_symbol_address_by_name(const char *name, bool reloc) sym = __find_kernel_function_by_name(name, &map); if (sym) return map->unmap_ip(map, sym->start) - - (reloc) ? 0 : map->reloc; + ((reloc) ? 0 : map->reloc); } return 0; } -- 2.2.0.33.gc18b867 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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