1 files changed, 17 insertions, 2 deletions

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index e3c7fc0dca3..4c0383da1c9 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -859,7 +859,7 @@ sub annotate_values {
                                 $av_preprocessor = 0;
                         }
 
-                } elsif ($cur =~ /^(\(\s*$Type\s*)\)/) {
+                } elsif ($cur =~ /^(\(\s*$Type\s*)\)/ && $av_pending eq '_') {
                         print "CAST($1)\n" if ($dbg_values > 1);
                         push(@av_paren_type, $type);
                         $type = 'C';
@@ -2743,6 +2743,11 @@ sub process {
                         WARN("plain inline is preferred over $1\n" . $herecurr);
                 }
 
+# Check for __attribute__ packed, prefer __packed
+                if ($line =~ /\b__attribute__\s*\(\s*\(.*\bpacked\b/) {
+                        WARN("__packed is preferred over __attribute__((packed))\n" . $herecurr);
+                }
+
 # check for sizeof(&)
                 if ($line =~ /\bsizeof\s*\(\s*\&/) {
                         WARN("sizeof(& should be avoided\n" . $herecurr);
@@ -2785,10 +2790,15 @@ sub process {
                 }
 
 # check for pointless casting of kmalloc return
-                if ($line =~ /\*\s*\)\s*k[czm]alloc\b/) {
+                if ($line =~ /\*\s*\)\s*[kv][czm]alloc(_node){0,1}\b/) {
                         WARN("unnecessary cast may hide bugs, see http://c-faq.com/malloc/mallocnocast.html\n" . $herecurr);
                 }
 
+# check for multiple semicolons
+                if ($line =~ /;\s*;\s*$/) {
+                    WARN("Statements terminations use 1 semicolon\n" . $herecurr);
+                }
+
 # check for gcc specific __FUNCTION__
                 if ($line =~ /__FUNCTION__/) {
                         WARN("__func__ should be used instead of gcc specific __FUNCTION__\n"  . $herecurr);
@@ -2892,6 +2902,11 @@ sub process {
                                 ERROR("lockdep_no_validate class is reserved for device->mutex.\n" . $herecurr);
                         }
                 }
+
+                if ($line =~ /debugfs_create_file.*S_IWUGO/ ||
+                    $line =~ /DEVICE_ATTR.*S_IWUGO/ ) {
+                        WARN("Exporting world writable files is usually an error. Consider more restrictive permissions.\n" . $herecurr);
+                }
         }
 
         # If we have no input at all, then there is nothing to report on