netdev - Re: [PATCH net] lib: packing: fix shift wrapping in bit

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: <20221208165812.gnmyjkwijoieymb3@skbuf>
Date:   Thu, 8 Dec 2022 18:58:12 +0200
From:   Vladimir Oltean <olteanv@...il.com>
To:     David Laight <David.Laight@...LAB.COM>
Cc:     'Dan Carpenter' <error27@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "kernel-janitors@...r.kernel.org" <kernel-janitors@...r.kernel.org>
Subject: Re: [PATCH net] lib: packing: fix shift wrapping in bit_reverse()

On Wed, Dec 07, 2022 at 07:41:28PM +0000, David Laight wrote:
> From: Dan Carpenter
> > Sent: 07 December 2022 12:21
> ....
> > > > -		new_val |= (bit << (width - i - 1));
> > > > +		if (val & BIT_ULL(1))
> > >
> > > hmm, why 1 and not i?
> > 
> > Because I'm a moron.  Let me resend.
> 
> Since we're not writing FORTRAN-IV why not use a variable
> name that is harder to confuse with 1?

How about 'k'?