linux-kernel - [PATCH 1/1] scripts/checkpatch.pl: to give more detailed warning message in case printk is used in any patch

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Date:	Sun, 2 Mar 2014 20:31:18 +0530
From:	Yogesh Chaudhari <mr.yogesh@...il.com>
To:	LKML <linux-kernel@...r.kernel.org>
Cc:	joe@...ches.com, apw@...onical.com
Subject: [PATCH 1/1] scripts/checkpatch.pl: to give more detailed warning
 message in case printk is used in any patch

Based on the discussion here:
https://lkml.org/lkml/2014/3/2/17

I would like to propose this patch to improve the warning message in
checkpatch.pl.  Comments/Suggestions on possible improvements are
welcome.


=========================================================

This patch modifies scripts/checkpatch.pl to give more detailed
warning message in case printk is used in any patch.

Signed-off-by: Yogesh Chaudhari <mr.yogesh@...il.com>
---
 scripts/checkpatch.pl | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 464dcef..526f33aa 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -2799,7 +2799,10 @@ sub process {
             my $level2 = $level;
             $level2 = "dbg" if ($level eq "debug");
             WARN("PREFER_PR_LEVEL",
-                 "Prefer netdev_$level2(netdev, ... then
dev_$level2(dev, ... then pr_$level(...  to printk(KERN_$orig ...\n" .
$herecurr);
+                 "Order of preference for printing debug messages:
+                 1. [subsystem]_$level2([subsystem]dev, ... eg
netdev_$level2(netdev, ... for netdevice object
+                 2. dev_$level2(dev, ... for drivers with struct device
+                 3. pr_$level(...  to printk(KERN_$orig ...\n" . $herecurr);
         }

         if ($line =~ /\bpr_warning\s*\(/) {





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