Re: [PATCH] add a trivial patch style checker

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Andy Whitcroft <[email protected]> writes:
> +
> +# no BUG() or BUG_ON()
> +		if ($line =~ /\b(BUG|BUG_ON)\b/) {
> +			print "Try to use WARN_ON & Recovery code rather than BUG() or BUG_ON()\n";

Just outlawing BUG_ON doesn't seem like a good idea to me. We'll just end
up with lots of untested and likely buggy recovery code or no asserts. Both
would be bad.

> +#need space before brace following if, while, etc
> +		if($line=~/\(.*\){/) {
> +			print ("need a space before the brace\n");
> +			print "$herecurr";
> +			$clean = 0;		
> +		}
> +
> +#gotos aren't indented

You mean goto labels? Surely goto statements are to be indented.
Confusing message

> +		if($line=~/^\s*[A-Za-z\d_]+:/ and !($line=~/^\s*default:/)){
> +			print "Gotos should not be indented\n";
> +			print "$herecurr";
> +			$clean = 0;
> +		}

emacs generates one space label in front of a goto label. I wouldn't
outlaw this.

> +# don't include <linux/video_decoder.h>

It would be probably better to define some syntax that makes it possible
to auto extract those from feature-removal-schedule.txt. Otherwise
long term this will become messy.

Possible further checks that might make sense:
- panic() anywhere in drivers/* 
- externs in .c files without asmlinkage
- general checking that everything in a fully visible {} block is the right 
indentation

-Andi
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