checkpatch: add types for other OS typedefs

bsd and sysv use different typedefs for unsigned types.

These are in types.h but not in checkpatch, so add them to checkpatch's
ability to know types.

This can avoid false positives for code like:

void foo(void)
{
	int x;
	uint y;

	[...];
}

where checkpatch incorrectly emits a warning for "missing a blank line
after declarations".

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>

1 files changed, 8 insertions, 0 deletions

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 6a3baa0bdde8..6705576198a6 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -339,6 +339,11 @@ our $UTF8	= qr{
         | $NON_ASCII_UTF8
 }x;
 
+our $typeOtherOSTypedefs = qr{(?x:
+        u_(?:char|short|int|long) |          # bsd
+        u(?:nchar|short|int|long)            # sysv
+)};
+
 our $typeTypedefs = qr{(?x:
         (?:__)?(?:u|s|be|le)(?:8|16|32|64)|
         atomic_t
@@ -475,6 +480,7 @@ sub build_types {
                         (?:$Modifier\s+|const\s+)*
                         (?:
                                 (?:typeof|__typeof__)\s*\([^\)]*\)|
+                                (?:$typeOtherOSTypedefs\b)|
                                 (?:$typeTypedefs\b)|
                                 (?:${all}\b)
                         )
@@ -492,6 +498,7 @@ sub build_types {
                         (?:
                                 (?:typeof|__typeof__)\s*\([^\)]*\)|
                                 (?:$typeTypedefs\b)|
+                                (?:$typeOtherOSTypedefs\b)|
                                 (?:${allWithAttr}\b)
                         )
                         (?:\s+$Modifier|\s+const)*
@@ -3159,6 +3166,7 @@ sub process {
                     $line !~ /\btypedef\s+$Type\s*\(\s*\*?$Ident\s*\)\s*\(/ &&
                     $line !~ /\btypedef\s+$Type\s+$Ident\s*\(/ &&
                     $line !~ /\b$typeTypedefs\b/ &&
+                    $line !~ /\b$typeOtherOSTypedefs\b/ &&
                     $line !~ /\b__bitwise(?:__|)\b/) {
                         WARN("NEW_TYPEDEFS",
                              "do not add new typedefs\n" . $herecurr);