get_maintainer: allow keywords to match filenames

Allow K: entries in MAINTAINERS to match directly against filenames;
either those extracted from patch +++ or --- lines, or those specified on
the command-line using the -f option.

This potentially allows fewer lines in a MAINTAINERS entry, if all the
relevant files are scattered throughout the whole kernel tree, yet contain
some common keyword.  An example would be using an ARM SoC name as the
keyword to catch all related drivers.

I don't think setting exact_pattern_match_hash would be appropriate here;
at least for intended Tegra use case, this feature is to ensure that all
Tegra-related driver changes get Cc'd to the Tegra mailing list.  Setting
exact_pattern_match_hash would prevent git history parsing for e.g.  S-o-b
tags, which still seems like it would be useful.  Hence, this flag isn't
set.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Cc: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

diff --git a/MAINTAINERS b/MAINTAINERS
index ed4f36497bfac6b98a98eb5f9fb7102ffde323f9..3c174607f94d98f8b05534f0655022801e9fc03f 100644 (file)
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -97,12 +97,13 @@ Descriptions of section entries:
           X:   net/ipv6/
           matches all files in and below net excluding net/ipv6/
        K: Keyword perl extended regex pattern to match content in a
-          patch or file.  For instance:
+          patch or file, or an affected filename.  For instance:
           K: of_get_profile
-             matches patches or files that contain "of_get_profile"
+             matches patch or file content, or filenames, that contain
+             "of_get_profile"
           K: \b(printk|pr_(info|err))\b
-             matches patches or files that contain one or more of the words
-             printk, pr_info or pr_err
+             matches patch or file content, or filenames, that contain one or
+             more of the words printk, pr_info or pr_err
           One regex pattern per line.  Multiple K: lines acceptable.
 
 Note: For the hard of thinking, this list is meant to remain in alphabetical

diff --git a/scripts/get_maintainer.pl b/scripts/get_maintainer.pl
index 18d4ab55606bcb1ee41d2b7d0cb32afbf06163d9..ce4cc837b74890e8ad973242718d1050e1f909c1 100755 (executable)
--- a/scripts/get_maintainer.pl
+++ b/scripts/get_maintainer.pl
@@ -611,6 +611,10 @@ sub get_maintainers {
                                    $hash{$tvi} = $value_pd;
                                }
                            }
+                       } elsif ($type eq 'K') {
+                           if ($file =~ m/$value/x) {
+                               $hash{$tvi} = 0;
+                           }
                        }
                    }
                }