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tools include: Adopt strstarts() from the kernel

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Replacing prefixcmp(), same purpose, inverted result, so standardize on
the kernel variant, to reduce silly differences among tools/ and the
kernel sources, making it easier for people to work in both codebases.

And then doing:

	if (strstarts(option, "no-"))

Looks clearer than doing:

	if (!prefixcmp(option, "no-"))

To figure out if option starts witn "no-".

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-kaei42gi7lpa8subwtv7eug8@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Arnaldo Carvalho de Melo
2017-07-20 15:27:39 -03:00
parent 082ab9a18e
commit 8e99b6d453
15 changed files with 50 additions and 46 deletions
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6
tools/perf/builtin-help.c
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@@ -90,7 +90,7 @@ static int check_emacsclient_version(void)
*/
finish_command(&ec_process);
if (prefixcmp(buffer.buf, "emacsclient")) {
if (!strstarts(buffer.buf, "emacsclient")) {
fprintf(stderr, "Failed to parse emacsclient version.\n");
goto out;
}
@@ -283,7 +283,7 @@ static int perf_help_config(const char *var, const char *value, void *cb)
add_man_viewer(value);
return 0;
}
if (!prefixcmp(var, "man."))
if (!strstarts(var, "man."))
return add_man_viewer_info(var, value);
return 0;
@@ -313,7 +313,7 @@ static const char *cmd_to_page(const char *perf_cmd)
if (!perf_cmd)
return "perf";
else if (!prefixcmp(perf_cmd, "perf"))
else if (!strstarts(perf_cmd, "perf"))
return perf_cmd;
return asprintf(&s, "perf-%s", perf_cmd) < 0 ? NULL : s;