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checkpatch: suggest pr_<level> over printk(KERN_<LEVEL>

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Suggest the shorter pr_<level> instead of printk(KERN_<LEVEL>.

Prefer to use pr_<level> over bare printks.
Prefer to use pr_warn over pr_warning.

Signed-off-by: Joe Perches <joe@perches.com>
Cc: Andy Whitcroft <apw@shadowen.org>
Cc: Theodore Ts'o <tytso@mit.edu>
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 2012-05-31 16:26:09 -07:00 committed by Linus Torvalds
parent 9a4cad4e25
commit 243f3803cf
1 changed files with 13 additions and 0 deletions
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13
scripts/checkpatch.pl
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@ -2382,6 +2382,19 @@ sub process {
}
}
if ($line =~ /\bprintk\s*\(\s*KERN_([A-Z]+)/) {
my $orig = $1;
my $level = lc($orig);
$level = "warn" if ($level eq "warning");
WARN("PREFER_PR_LEVEL",
"Prefer pr_$level(... to printk(KERN_$1, ...\n" . $herecurr);
}
if ($line =~ /\bpr_warning\s*\(/) {
WARN("PREFER_PR_LEVEL",
"Prefer pr_warn(... to pr_warning(...\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