perf: do not look at ./config for configuration (Closes: #632923)

svn path=/dists/trunk/linux-2.6/; revision=17890

debian/changelog

@@ -15,6 +15,9 @@ linux-2.6 (3.0.0-2) UNRELEASED; urgency=low
   * Add stable 3.0.1 including:
     - [SCSI] fix crash in scsi_dispatch_cmd()
 
+  [ Jonathan Nieder ]
+  * perf: do not look at ./config for configuration (Closes: #632923)
+
  -- Ben Hutchings <ben@decadent.org.uk>  Wed, 27 Jul 2011 23:58:10 +0200
 
 linux-2.6 (3.0.0-1) unstable; urgency=low

debian/patches/bugfix/all/perf-do-not-look-at-.-config-for-configuration.patch

@@ -0,0 +1,51 @@
+Date: Fri, 5 Aug 2011 18:58:38 +0200
+From: Jonathan Nieder <jrnieder@gmail.com>
+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@gmx.net>
+Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
+---
+ 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
+
+

debian/patches/series/2

@@ -1,2 +1,3 @@
 - features/all/rt2x00-Add-device-ID-for-RT539F-device.patch
 + bugfix/all/stable/3.0.1.patch
++ bugfix/all/perf-do-not-look-at-.-config-for-configuration.patch