Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752518AbbKPMsx (ORCPT ); Mon, 16 Nov 2015 07:48:53 -0500 Received: from szxga03-in.huawei.com ([119.145.14.66]:10464 "EHLO szxga03-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752168AbbKPMsp (ORCPT ); Mon, 16 Nov 2015 07:48:45 -0500 From: Wang Nan To: , , CC: , , , Wang Nan , Arnaldo Carvalho de Melo Subject: [PATCH 05/13] perf tools: Introduce strtobool() to string.c Date: Mon, 16 Nov 2015 12:10:07 +0000 Message-ID: <1447675815-166222-6-git-send-email-wangnan0@huawei.com> X-Mailer: git-send-email 1.8.3.4 In-Reply-To: <1447675815-166222-1-git-send-email-wangnan0@huawei.com> References: <1447675815-166222-1-git-send-email-wangnan0@huawei.com> MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.107.193.248] X-CFilter-Loop: Reflected X-Mirapoint-Virus-RAPID-Raw: score=unknown(0), refid=str=0001.0A090205.5649D0A3.0056,ss=1,re=0.000,recu=0.000,reip=0.000,cl=1,cld=1,fgs=0, ip=0.0.0.0, so=2013-05-26 15:14:31, dmn=2013-03-21 17:37:32 X-Mirapoint-Loop-Id: ba7684a9a439992686617d3433429e7e Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2157 Lines: 76 This patch clones strtobool() from kernel's string.c to perf's string.c, then add the function entry to tools/perf/util/include/linux/string.h. string.h in perf utils doesn't have #ifdef guard. This patch fixes it. This is preparation for enforcing BPF program configuration, which would allow config string like 'inlines=yes'. Signed-off-by: Wang Nan Cc: Alexei Starovoitov Cc: Arnaldo Carvalho de Melo Cc: Masami Hiramatsu Cc: Zefan Li Cc: pi3orama@163.com --- tools/perf/util/include/linux/string.h | 5 +++++ tools/perf/util/string.c | 28 ++++++++++++++++++++++++++++ 2 files changed, 33 insertions(+) diff --git a/tools/perf/util/include/linux/string.h b/tools/perf/util/include/linux/string.h index 6f19c54..2bb0057 100644 --- a/tools/perf/util/include/linux/string.h +++ b/tools/perf/util/include/linux/string.h @@ -1,3 +1,8 @@ +#ifndef PERF_LINUX_STRING_H_ +#define PERF_LINUX_STRING_H_ #include void *memdup(const void *src, size_t len); + +int strtobool(const char *s, bool *res); +#endif diff --git a/tools/perf/util/string.c b/tools/perf/util/string.c index fc8781d..c7fd44d 100644 --- a/tools/perf/util/string.c +++ b/tools/perf/util/string.c @@ -396,3 +396,31 @@ out_err_overflow: free(expr); return NULL; } + +/** + * strtobool - convert common user inputs into boolean values + * @s: input string + * @res: result + * + * This routine returns 0 iff the first character is one of 'Yy1Nn0'. + * Otherwise it will return -EINVAL. Value pointed to by res is + * updated upon finding a match. + */ +int strtobool(const char *s, bool *res) +{ + switch (s[0]) { + case 'y': + case 'Y': + case '1': + *res = true; + break; + case 'n': + case 'N': + case '0': + *res = false; + break; + default: + return -EINVAL; + } + return 0; +} -- 1.8.3.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/