linux-kernel - Re: [PATCH] HID: roccat: Drop cast

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]

Date:	Thu, 26 Jun 2014 22:52:46 -0700
From:	Joe Perches <joe@...ches.com>
To:	Julia Lawall <julia.lawall@...6.fr>
Cc:	Himangi Saraogi <himangi774@...il.com>,
	Stefan Achatz <erazor_de@...rs.sourceforge.net>,
	Jiri Kosina <jkosina@...e.cz>, linux-input@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] HID: roccat: Drop cast

On Fri, 2014-06-27 at 07:29 +0200, Julia Lawall wrote:
> On Thu, 26 Jun 2014, Joe Perches wrote:
> > The cast of a const void * to a void * was odd.
> > 
> > Maybe a mechanism to verify appropriateness of
> > loss of constness for any pointer might be useful.
> 
> I tried the following, but didn't find anything interesting:
> 
> @disable drop_cast@
> type T;
> const T e;
> @@
> 
> * (T)e

What code does this match?
Do you have an example match?

This doesn't find a cast of a void type like:

void func(const void * const p)
{
	char *p2 = p;

	p2[0] = 1;
}


--
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/