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checkpatch: prefer dev_<level>( to dev_printk(KERN_<LEVEL>

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Add YA check to printk style.

dev_<level> uses are functions and generate smaller
object code than dev_printk(KERN_<LEVEL>.

Signed-off-by: Joe Perches <joe@perches.com>
Cc: Andy Whitcroft <apw@canonical.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 2013-02-21 16:44:13 -08:00 committed by Linus Torvalds
parent 5dc49c75a2
commit dc1393130b
1 changed files with 9 additions and 0 deletions
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9
scripts/checkpatch.pl
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@ -2430,6 +2430,15 @@ sub process {
"Prefer pr_warn(... to pr_warning(...\n" . $herecurr);
}
if ($line =~ /\bdev_printk\s*\(\s*KERN_([A-Z]+)/) {
my $orig = $1;
my $level = lc($orig);
$level = "warn" if ($level eq "warning");
$level = "dbg" if ($level eq "debug");
WARN("PREFER_DEV_LEVEL",
"Prefer dev_$level(... to dev_printk(KERN_$orig, ...\n" . $herecurr);
}
# function brace can't be on same line, except for #defines of do while,
# or if closed on same line
if (($line=~/$Type\s*$Ident\(.*\).*\s{/) and