netdev - Re: [RFC] net/hsr: Add support for IEC 62439-3 High-availability Seamless Redundancy

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: <20120410182847.45e47c5e@nehalam.linuxnetplumber.net>
Date:	Tue, 10 Apr 2012 18:28:47 -0700
From:	Stephen Hemminger <shemminger@...tta.com>
To:	Arvid Brodin <Arvid.Brodin@...n.com>
Cc:	Ben Hutchings <bhutchings@...arflare.com>,
	David Miller <davem@...emloft.net>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"balferreira@...glemail.com" <balferreira@...glemail.com>
Subject: Re: [RFC] net/hsr: Add support for IEC 62439-3 High-availability
 Seamless Redundancy


> 3) My feeble suggestion to cast icmp_hdr() to (char *) is of course even worse (it doesn't
> even avoid the erroneous cast in the first place).
> 
> So what do we do?
> 

Reading Documentation/unalgined-memory-access.txt suggests that you
probably should copy the skb before passing up the stack (if necessary).
That is safe (but slightly slower).
--
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