linux-kernel - Re: [patch] checkpatch: warn on missing spaces in broken up quoted strings

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <1402689145.4462.13.camel@joe-AO725>
Date:	Fri, 13 Jun 2014 12:52:25 -0700
From:	Joe Perches <joe@...ches.com>
To:	Dan Carpenter <dan.carpenter@...cle.com>
Cc:	Andy Whitcroft <apw@...onical.com>, linux-kernel@...r.kernel.org
Subject: Re: [patch] checkpatch: warn on missing spaces in broken up quoted
 strings

On Fri, 2014-06-13 at 12:46 +0300, Dan Carpenter wrote:
> On Fri, Jun 13, 2014 at 02:30:22AM -0700, Joe Perches wrote:
> 
> > > +# check for missing a space in a string concatination
> > > +        if ($prevrawline =~ /[^\\][a-zA-Z]"$/ && $rawline =~ /^\+[\t ]+"[a-zA-Z]/) {
> > > +            WARN('MISSING_SPACE',
> > > +                 "break quoted strings at a space character\n" . $hereprev);
> > > +        }
> > 
> > Probably want digits too so maybe \w instead of "[a-zA-Z]/

Couple nits:

The indentation isn't right here.

And this check is probably better placed immediately
after the "SPLIT_STRING" test.

[]

> ./drivers/scsi/pm8001/pm8001_ctl.c:297 			       "0x%08x 0x%08x\n",
> ./drivers/scsi/pm8001/pm8001_ctl.c:432 			       "0x%08x 0x%08x\n",
> ./drivers/scsi/qla2xxx/qla_nx2.c:1457 	    "0x%X 0x%X 0x%X 0x%X 0x%X 0x%X\n"
> 	- hex false positives

These look more like defects to me.

> I thought about doing that when I wrote my original patch but I was
> worried about more hex false positives.  If there are only those 3 then
> it's probably not a big deal.  What do you think?

I know it works on files, but I'm not sure it works on patches.

What happens when checking a single line replacement patch?

Likely the \\[a-zA-Z] check should include
all the tests that the multiple line string exceptions use.

(?:\\(?:[ntr]|[0-7]{1,3}|x[0-9a-fA-F]{1,2})|;\s*|\{\s*)"\s*$

cheers, Joe

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/