checkpatch: suggest pr_<level> over printk(KERN_<LEVEL>
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>
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 2262e1f..e5bd60f 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -2382,6 +2382,19 @@
}
}
+ 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