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Date:	Tue, 8 Feb 2011 15:16:54 GMT
From:	tip-bot for Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	acme@...hat.com, linux-kernel@...r.kernel.org, hpa@...or.com,
	mingo@...hat.com, masami.hiramatsu.pt@...achi.com,
	fweisbec@...il.com, rostedt@...dmis.org, srikar@...ux.vnet.ibm.com,
	tglx@...utronix.de, mingo@...e.hu
Subject: [tip:perf/core] tracing/kprobes: Cleanup strict_strtol() using code

Commit-ID:  76022db323dd6d7c6958df3d595f7dedf7a14778
Gitweb:     http://git.kernel.org/tip/76022db323dd6d7c6958df3d595f7dedf7a14778
Author:     Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>
AuthorDate: Fri, 4 Feb 2011 21:51:53 +0900
Committer:  Arnaldo Carvalho de Melo <acme@...hat.com>
CommitDate: Mon, 7 Feb 2011 09:13:36 -0200

tracing/kprobes: Cleanup strict_strtol() using code

Since strict_strtol() accepts minus digits started with '-', it doesn't
need to invert after converting.

Cc: 2nddept-manager@....hitachi.co.jp
Cc: Frederic Weisbecker <fweisbec@...il.com>
Cc: Ingo Molnar <mingo@...e.hu>
Cc: Srikar Dronamraju <srikar@...ux.vnet.ibm.com>
Cc: Steven Rostedt <rostedt@...dmis.org>
LKML-Reference: <20110204125153.9507.49335.stgit@...236.sdl.hitachi.co.jp>
Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
 kernel/trace/trace_kprobe.c |    5 ++---
 1 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/kernel/trace/trace_kprobe.c b/kernel/trace/trace_kprobe.c
index 2dec9bc..2088893 100644
--- a/kernel/trace/trace_kprobe.c
+++ b/kernel/trace/trace_kprobe.c
@@ -767,16 +767,15 @@ static int __parse_probe_arg(char *arg, const struct fetch_type *t,
 		}
 		break;
 	case '+':	/* deref memory */
+		arg++;	/* Skip '+', because strict_strtol() rejects it. */
 	case '-':
 		tmp = strchr(arg, '(');
 		if (!tmp)
 			break;
 		*tmp = '\0';
-		ret = strict_strtol(arg + 1, 0, &offset);
+		ret = strict_strtol(arg, 0, &offset);
 		if (ret)
 			break;
-		if (arg[0] == '-')
-			offset = -offset;
 		arg = tmp + 1;
 		tmp = strrchr(arg, ')');
 		if (tmp) {
--
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