checkpatch: warn about unexpectedly long msleep's
[sfrench/cifs-2.6.git] / scripts / checkpatch.pl
index 8b69af8a76f90acfe2cc2bdf556950c468b97ef3..dd11bbe01338ba810cd873f9f5c77b593712100c 100755 (executable)
@@ -2592,6 +2592,13 @@ sub process {
                        }
                }
 
+# warn about unexpectedly long msleep's
+               if ($line =~ /\bmsleep\s*\((\d+)\);/) {
+                       if ($1 < 20) {
+                               WARN("msleep < 20ms can sleep for up to 20ms; see Documentation/timers/timers-howto.txt\n" . $line);
+                       }
+               }
+
 # warn about #ifdefs in C files
 #              if ($line =~ /^.\s*\#\s*if(|n)def/ && ($realfile =~ /\.c$/)) {
 #                      print "#ifdef in C files should be avoided\n";