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checkpatch: struct file_operations should normally be const

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In the general use case struct file_operations should be a const object.
Check for and warn where it is not.  As suggested by Steven and Ingo.

Acked-by: Steven Rostedt <rostedt@goodmis.org>
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>
This commit is contained in:
Andy Whitcroft 2009-01-06 14:41:29 -08:00 committed by Linus Torvalds
parent b53c8e104e
commit 2b6db5cb65
1 changed files with 5 additions and 0 deletions
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5
scripts/checkpatch.pl
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@ -2509,6 +2509,11 @@ sub process {
if ($line =~ /^.\s*__initcall\s*\(/) {
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);
}
# use of NR_CPUS is usually wrong
# ignore definitions of NR_CPUS and usage to define arrays as likely right