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checkpatch: add warning for unnamed function definition arguments

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Function definitions without identifiers like
	 int foo(int)
are not preferred.  Emit a warning when they occur.

Link: http://lkml.kernel.org/r/94fe6378504745991b650f48fc92bb4648f25706.1474925354.git.joe@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>
This commit is contained in:
Joe Perches 2016-10-11 13:52:16 -07:00 committed by Linus Torvalds
parent 5207649b7b
commit ca0d8929e7
1 changed files with 13 additions and 0 deletions
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13
scripts/checkpatch.pl
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@ -5794,6 +5794,19 @@ sub process {
"externs should be avoided in .c files\n" . $herecurr);
}
if ($realfile =~ /\.[ch]$/ && defined $stat &&
$stat =~ /^.\s*(?:extern\s+)?$Type\s*$Ident\s*\(\s*([^{]+)\s*\)\s*;/s &&
$1 ne "void") {
my $args = trim($1);
while ($args =~ m/\s*($Type\s*(?:$Ident|\(\s*\*\s*$Ident?\s*\)\s*$balanced_parens)?)/g) {
my $arg = trim($1);
if ($arg =~ /^$Type$/ && $arg !~ /enum\s+$Ident$/) {
WARN("FUNCTION_ARGUMENTS",
"function definition argument '$arg' should also have an identifier name\n" . $herecurr);
}
}
}
# checks for new __setup's
if ($rawline =~ /\b__setup\("([^"]*)"/) {
my $name = $1;