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| author | Joe Perches <joe@perches.com> | 2016-03-15 14:58:03 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-03-15 16:55:16 -0700 |
| commit | a1ce18e4f941d2039aa3bdeee17db968919eac2f (patch) | |
| tree | 821e8cb94d940ab81a47e7f67bd2b4a78ccc1b3f /scripts/checkpatch.pl | |
| parent | 42e152931deba7500e756c39e8e2df2e244860f2 (diff) | |
| download | lwn-a1ce18e4f941d2039aa3bdeee17db968919eac2f.tar.gz lwn-a1ce18e4f941d2039aa3bdeee17db968919eac2f.zip | |
checkpatch: warn on bare unsigned or signed declarations without int
Kernel style prefers "unsigned int <foo>" over "unsigned <foo>" and
"signed int <foo>" over "signed <foo>".
Emit a warning for these simple signed/unsigned <foo> declarations. Fix
it too if desired.
Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'scripts/checkpatch.pl')
| -rwxr-xr-x | scripts/checkpatch.pl | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl index 5c00c1c02dab..4b314bd15a0d 100755 --- a/scripts/checkpatch.pl +++ b/scripts/checkpatch.pl @@ -3239,6 +3239,26 @@ sub process { #ignore lines not being added next if ($line =~ /^[^\+]/); +# check for declarations of signed or unsigned without int + while ($line =~ m{($Declare++)\s*($Ident)\s*[=,;\[\)]}g) { + my $type = $1; + my $var = $2; + if ($type =~ /^((?:un)?signed)((?:\s*\*)*)\s*$/) { + my $sign = $1; + my $pointer = $2; + + $pointer = "" if (!defined $pointer); + + if (WARN("UNSPECIFIED_INT", + "Prefer '" . trim($sign) . " int" . rtrim($pointer) . "' to bare use of '$sign" . rtrim($pointer) . "'\n" . $herecurr) && + $fix) { + my $decl = trim($sign) . " int "; + $decl .= trim($pointer) if (rtrim($pointer) ne ""); + $fixed[$fixlinenr] =~ s@\b\Q$type\E\s*$var\b@$decl$var@; + } + } + } + # TEST: allow direct testing of the type matcher. if ($dbg_type) { if ($line =~ /^.\s*$Declare\s*$/) { |