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checkpatch: warn on logging functions with KERN_<LEVEL> 

Warn on probable misuses of logging functions with KERN_<LEVEL>
like pr_err(KERN_ERR "foo\n");

Signed-off-by: Joe Perches <joe@perches.com>
Suggested-by: Andrew Morton <akpm@linux-foundation.org>
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 2014-10-13 15:52:01 -07:00 committed by Linus Torvalds
parent 840080a084
commit f78d98f6ce
1 changed files with 11 additions and 0 deletions
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11
scripts/checkpatch.pl
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@ -4447,6 +4447,17 @@ sub process {
}
}
# check for logging functions with KERN_<LEVEL>
if ($line !~ /printk\s*\(/ &&
$line =~ /\b$logFunctions\s*\(.*\b(KERN_[A-Z]+)\b/) {
my $level = $1;
if (WARN("UNNECESSARY_KERN_LEVEL",
"Possible unnecessary $level\n" . $herecurr) &&
$fix) {
$fixed[$fixlinenr] =~ s/\s*$level\s*//;
}
}
# check for bad placement of section $InitAttribute (e.g.: __initdata)
if ($line =~ /(\b$InitAttribute\b)/) {
my $attr = $1;