From: Joe Perches <joe@xxxxxxxxxxx>
Subject: checkpatch: improve tests for multiple line function definitions
Add a block that identifies multiple line function definitions.
Save the function name into $context_function to improve the embedded
function name test.
Look for misplaced open brace on the function definition.
Emit an OPEN_BRACE error when the function definition is similar to
void foo(int arg1,
int arg2) {
Miscellanea:
o Remove the $realfile test in function declaration w/o named arguments test
o Comment the function declaration w/o named arguments test
Link: http://lkml.kernel.org/r/de620ed6ebab75fdfa323741ada2134a0f545892.1496835238.git.joe@xxxxxxxxxxx
Signed-off-by: Joe Perches <joe@xxxxxxxxxxx>
Tested-by: David Kershner <david.kershner@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
scripts/checkpatch.pl | 26 +++++++++++++++++++++++++-
1 file changed, 25 insertions(+), 1 deletion(-)
diff -puN scripts/checkpatch.pl~checkpatch-improve-tests-for-multiple-line-function-definitions scripts/checkpatch.pl
--- a/scripts/checkpatch.pl~checkpatch-improve-tests-for-multiple-line-function-definitions
+++ a/scripts/checkpatch.pl
@@ -5899,7 +5899,8 @@ sub process {
"externs should be avoided in .c files\n" . $herecurr);
}
- if ($realfile =~ /\.[ch]$/ && defined $stat &&
+# check for function declarations that have arguments without identifier names
+ if (defined $stat &&
$stat =~ /^.\s*(?:extern\s+)?$Type\s*$Ident\s*\(\s*([^{]+)\s*\)\s*;/s &&
$1 ne "void") {
my $args = trim($1);
@@ -5912,6 +5913,29 @@ sub process {
}
}
+# check for function definitions
+ if ($^V && $^V ge 5.10.0 &&
+ defined $stat &&
+ $stat =~ /^.\s*(?:$Storage\s+)?$Type\s*($Ident)\s*$balanced_parens\s*{/s) {
+ $context_function = $1;
+
+# check for multiline function definition with misplaced open brace
+ my $ok = 0;
+ my $cnt = statement_rawlines($stat);
+ my $herectx = $here . "\n";
+ for (my $n = 0; $n < $cnt; $n++) {
+ my $rl = raw_line($linenr, $n);
+ $herectx .= $rl . "\n";
+ $ok = 1 if ($rl =~ /^[ \+]\{/);
+ $ok = 1 if ($rl =~ /\{/ && $n == 0);
+ last if $rl =~ /^[ \+].*\{/;
+ }
+ if (!$ok) {
+ ERROR("OPEN_BRACE",
+ "open brace '{' following function definitions go on the next line\n" . $herectx);
+ }
+ }
+
# checks for new __setup's
if ($rawline =~ /\b__setup\("([^"]*)"/) {
my $name = $1;
_
--
To unsubscribe from this list: send the line "unsubscribe mm-commits" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
