checkpatch: struct seq_operations should normally be const

In the general use case struct seq_operations should be a const object.
Check for and warn where it is not.

Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andy Whitcroft <apw@canonical.com>
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 5ea55e3..447435c 100755 (executable)
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -2527,9 +2527,10 @@ sub process {
                        WARN("please use device_initcall() instead of __initcall()\n" . $herecurr);
                }
 # check for struct file_operations, ensure they are const.
-               if ($line =~ /\bstruct\s+file_operations\b/ &&
-                   $line !~ /\bconst\b/) {
-                       WARN("struct file_operations should normally be const\n" . $herecurr);
+               if ($line !~ /\bconst\b/ &&
+                   $line =~ /\bstruct\s+(file_operations|seq_operations)\b/) {
+                       WARN("struct $1 should normally be const\n" .
+                               $herecurr);
                }
 
 # use of NR_CPUS is usually wrong