linux-kernel - [PATCH] perf: do not look at ./config for configuration

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Date:	Fri, 5 Aug 2011 18:58:38 +0200
From:	Jonathan Nieder <jrnieder@...il.com>
To:	Ben Hutchings <ben@...adent.org.uk>
Cc:	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Paul Mackerras <paulus@...ba.org>, Ingo Molnar <mingo@...e.hu>,
	Arnaldo Carvalho de Melo <acme@...stprotocols.net>,
	632923@...s.debian.org, Christian Ohm <chr.ohm@....net>,
	LKML <linux-kernel@...r.kernel.org>
Subject: [PATCH] perf: do not look at ./config for configuration

In addition to /etc/perfconfig and $HOME/.perfconfig, perf looks for
configuration in the file ./config, imitating git which looks at
$GIT_DIR/config.  If ./config is not a perf configuration file, it
fails, or worse, treats it as a configuration file and changes
behavior in some unexpected way.

"config" is not an unusual name for a file to be lying around and perf
does not have a private directory dedicated for its own use, so let's
just stop looking for configuration in the cwd.  Callers needing
context-sensitive configuration can use the PERF_CONFIG environment
variable.

Requested-by: Christian Ohm <chr.ohm@....net>
Signed-off-by: Jonathan Nieder <jrnieder@...il.com>
---
Thoughts?

 tools/perf/util/config.c |    7 -------
 1 files changed, 0 insertions(+), 7 deletions(-)

diff --git a/tools/perf/util/config.c b/tools/perf/util/config.c
index e02d78ca..6c86eca8 100644
--- a/tools/perf/util/config.c
+++ b/tools/perf/util/config.c
@@ -399,7 +399,6 @@ static int perf_config_global(void)
 int perf_config(config_fn_t fn, void *data)
 {
 	int ret = 0, found = 0;
-	char *repo_config = NULL;
 	const char *home = NULL;
 
 	/* Setting $PERF_CONFIG makes perf read _only_ the given config file. */
@@ -421,12 +420,6 @@ int perf_config(config_fn_t fn, void *data)
 		free(user_config);
 	}
 
-	repo_config = perf_pathdup("config");
-	if (!access(repo_config, R_OK)) {
-		ret += perf_config_from_file(fn, repo_config, data);
-		found += 1;
-	}
-	free(repo_config);
 	if (found == 0)
 		return -1;
 	return ret;
-- 
1.7.6

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