diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 576139a508a38bd82ba8890ce39e7e23f64382e6..c274e1dc1e67d5ae0b933be1fa5f80233e1608ce 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -3299,6 +3299,12 @@ sub process {
 			}
 		}
 
+# check for comparisons of jiffies
+		if ($line =~ /\bjiffies\s*$Compare|$Compare\s*jiffies\b/) {
+			WARN("JIFFIES_COMPARISON",
+			     "Comparing jiffies is almost always wrong; prefer time_after, time_before and friends\n" . $herecurr);
+		}
+
 # warn about #ifdefs in C files
 #		if ($line =~ /^.\s*\#\s*if(|n)def/ && ($realfile =~ /\.c$/)) {
 #			print "#ifdef in C files should be avoided\n";