diff options
| author | Wolfram Sang <w.sang@pengutronix.de> | 2009-01-06 14:41:24 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-01-06 15:59:16 -0800 |
| commit | 1e85572697b348b1a126520349a29654f2ae6a12 (patch) | |
| tree | 1ce7febee025caa781c586090983718fde900c56 /scripts | |
| parent | 2a5a2c25224e26c5ee491af0dc5d39e4a16f619c (diff) | |
checkpatch: Add warning for p0-patches
Some people work internally with -p0-patches which has the danger that one
forgets to convert them to -p1 before mainlining. Bitten myself and seen
p0-patches in mailing lists occasionally, this patch adds a warning to
checkpatch.pl in case a patch is -p0. If you really want, you can fool
this check to generate false positives, this is why it just spits a
warning. Making the check 100% proof is trickier than it looks, so let's
start with a version which catches the cases of real use.
[apw@canonical.com: update message language, handle null prefix, add tests]
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Andy Whitcroft <apw@canonical.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'scripts')
| -rwxr-xr-x | scripts/checkpatch.pl | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl index f0156984796..b953c76be36 100755 --- a/scripts/checkpatch.pl +++ b/scripts/checkpatch.pl @@ -1057,6 +1057,7 @@ sub process { my $in_comment = 0; my $comment_edge = 0; my $first_line = 0; + my $p1_prefix = ''; my $prev_values = 'E'; @@ -1205,7 +1206,12 @@ sub process { # extract the filename as it passes if ($line=~/^\+\+\+\s+(\S+)/) { $realfile = $1; - $realfile =~ s@^[^/]*/@@; + $realfile =~ s@^([^/]*)/@@; + + $p1_prefix = $1; + if ($tree && $p1_prefix ne '' && -e "$root/$p1_prefix") { + WARN("patch prefix '$p1_prefix' exists, appears to be a -p0 patch\n"); + } if ($realfile =~ m@^include/asm/@) { ERROR("do not modify files in include/asm, change architecture specific files in include/asm-<architecture>\n" . "$here$rawline\n"); |