[34-longterm 164/179] perf tools: do not look at ./config for configuration

[Paul Gortmaker]

From: Jonathan Nieder <jrnieder@xxxxxxxxx>

                   -------------------
    This is a commit scheduled for the next v2.6.34 longterm release.
    http://git.kernel.org/?p=linux/kernel/git/paulg/longterm-queue-2.6.34.git
    If you see a problem with using this for longterm, please comment.
                   -------------------

commit aba8d056078e47350d85b06a9cabd5afcc4b72ea upstream.

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@xxxxxxx>
Cc: 632923@xxxxxxxxxxxxxxx
Cc: Ben Hutchings <ben@xxxxxxxxxxxxxxx>
Cc: Christian Ohm <chr.ohm@xxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxx>
Cc: Paul Mackerras <paulus@xxxxxxxxx>
Cc: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
Link: http://lkml.kernel.org/r/20110805165838.GA7237@xxxxxxxxxxxxxxxxxxxxxx
Signed-off-by: Jonathan Nieder <jrnieder@xxxxxxxxx>
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
Signed-off-by: Paul Gortmaker <paul.gortmaker@xxxxxxxxxxxxx>
---
 tools/perf/util/config.c |    7 -------
 1 file changed, 7 deletions(-)

diff --git a/tools/perf/util/config.c b/tools/perf/util/config.c
index 8784649..1720d01 100644
--- a/tools/perf/util/config.c
+++ b/tools/perf/util/config.c
@@ -416,7 +416,6 @@ 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. */
@@ -438,12 +437,6 @@ 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;
-- 
1.7.9.6

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