netdev - Re: [RESEND PATCH net-next-2.6 3/3] ipv6 sit: Set relay to 0.0.0.0 directly if relay

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: <20091012.011802.119775755.davem@davemloft.net>
Date:	Mon, 12 Oct 2009 01:18:02 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	eric.dumazet@...il.com
Cc:	yoshfuji@...ux-ipv6.org, netdev@...r.kernel.org
Subject: Re: [RESEND PATCH net-next-2.6 3/3] ipv6 sit: Set relay to 0.0.0.0
 directly if relay_prefixlen == 0.

From: Eric Dumazet <eric.dumazet@...il.com>
Date: Mon, 12 Oct 2009 09:32:41 +0200

> Sorry I dont get it
> 
> u32 val = any_value ;
> u32 relay_prefix = val & htonl(0xffffffffUL << 32) should give 0
> 
> If not, something is broken and should be fixed.

Indeed, it's "x >> 32" which is undefined and has to be done as
something like "(x >> 31) >> 1" when performed on a u32 object.

Yoshfuji is this patch really necessary?
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html