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Message-ID: <20180409001637.162453-29-alexander.levin@microsoft.com> Date: Mon, 9 Apr 2018 00:17:09 +0000 From: Sasha Levin <Alexander.Levin@...rosoft.com> To: "stable@...r.kernel.org" <stable@...r.kernel.org>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org> CC: "Steven Rostedt (VMware)" <rostedt@...dmis.org>, Andrew Morton <akpm@...ux-foundation.org>, Arnaldo Carvalho de Melo <acme@...hat.com>, Sasha Levin <Alexander.Levin@...rosoft.com> Subject: [PATCH AUTOSEL for 4.15 029/189] tools lib traceevent: Simplify pointer print logic and fix %pF From: "Steven Rostedt (VMware)" <rostedt@...dmis.org> [ Upstream commit 38d70b7ca1769f26c0b79f3c08ff2cc949712b59 ] When processing %pX in pretty_print(), simplify the logic slightly by incrementing the ptr to the format string if isalnum(ptr[1]) is true. This follows the logic a bit more closely to what is in the kernel. Also, this fixes a small bug where %pF was not giving the offset of the function. Signed-off-by: Steven Rostedt <rostedt@...dmis.org> Acked-by: Namhyung Kim <namhyung@...nel.org> Cc: Andrew Morton <akpm@...ux-foundation.org> Link: http://lkml.kernel.org/r/20180112004822.260262257@goodmis.org Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com> Signed-off-by: Sasha Levin <alexander.levin@...rosoft.com> --- tools/lib/traceevent/event-parse.c | 17 +++++++++-------- 1 file changed, 9 insertions(+), 8 deletions(-) diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c index 7ce724fc0544..9a17bc27296e 100644 --- a/tools/lib/traceevent/event-parse.c +++ b/tools/lib/traceevent/event-parse.c @@ -4949,21 +4949,22 @@ static void pretty_print(struct trace_seq *s, void *data, int size, struct event else ls = 2; - if (*(ptr+1) == 'F' || *(ptr+1) == 'f' || - *(ptr+1) == 'S' || *(ptr+1) == 's') { + if (isalnum(ptr[1])) ptr++; + + if (*ptr == 'F' || *ptr == 'f' || + *ptr == 'S' || *ptr == 's') { show_func = *ptr; - } else if (*(ptr+1) == 'M' || *(ptr+1) == 'm') { - print_mac_arg(s, *(ptr+1), data, size, event, arg); - ptr++; + } else if (*ptr == 'M' || *ptr == 'm') { + print_mac_arg(s, *ptr, data, size, event, arg); arg = arg->next; break; - } else if (*(ptr+1) == 'I' || *(ptr+1) == 'i') { + } else if (*ptr == 'I' || *ptr == 'i') { int n; - n = print_ip_arg(s, ptr+1, data, size, event, arg); + n = print_ip_arg(s, ptr, data, size, event, arg); if (n > 0) { - ptr += n; + ptr += n - 1; arg = arg->next; break; } -- 2.15.1
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