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| author | Joe Perches <joe@perches.com> | 2018-08-21 21:58:12 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-08-22 10:52:49 -0700 |
| commit | 809e082e973da2c7b751dab9348853cb8cc3f25c (patch) | |
| tree | 22a0a8cba7371397e8b8a733f928ea2eb1690822 | |
| parent | 6ad724e2a48fc24dd9788490d85a3490cb0117c1 (diff) | |
| download | linux-809e082e973da2c7b751dab9348853cb8cc3f25c.tar.gz linux-809e082e973da2c7b751dab9348853cb8cc3f25c.tar.bz2 linux-809e082e973da2c7b751dab9348853cb8cc3f25c.zip | |
checkpatch: warn on unnecessary int declarations
On Sun, 2018-08-05 at 08:52 -0700, Linus Torvalds wrote:
> "long unsigned int" isn't _technically_ wrong. But we normally
> call that type "unsigned long".
So add a checkpatch test for it.
Link: http://lkml.kernel.org/r/7bbd97dc0a1e5896a0251fada7bb68bb33643f77.camel@perches.com
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -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 f43d95a25712..5971b0c11616 100755 --- a/scripts/checkpatch.pl +++ b/scripts/checkpatch.pl @@ -3829,6 +3829,26 @@ sub process { "type '$tmp' should be specified in [[un]signed] [short|int|long|long long] order\n" . $herecurr); } +# check for unnecessary <signed> int declarations of short/long/long long + while ($sline =~ m{\b($TypeMisordered(\s*\*)*|$C90_int_types)\b}g) { + my $type = trim($1); + next if ($type !~ /\bint\b/); + next if ($type !~ /\b(?:short|long\s+long|long)\b/); + my $new_type = $type; + $new_type =~ s/\b\s*int\s*\b/ /; + $new_type =~ s/\b\s*(?:un)?signed\b\s*/ /; + $new_type =~ s/^const\s+//; + $new_type = "unsigned $new_type" if ($type =~ /\bunsigned\b/); + $new_type = "const $new_type" if ($type =~ /^const\b/); + $new_type =~ s/\s+/ /g; + $new_type = trim($new_type); + if (WARN("UNNECESSARY_INT", + "Prefer '$new_type' over '$type' as the int is unnecessary\n" . $herecurr) && + $fix) { + $fixed[$fixlinenr] =~ s/\b\Q$type\E\b/$new_type/; + } + } + # check for static const char * arrays. if ($line =~ /\bstatic\s+const\s+char\s*\*\s*(\w+)\s*\[\s*\]\s*=\s*/) { WARN("STATIC_CONST_CHAR_ARRAY", |