netdev - Re: [PATCH 1/4] netfilter: Add nf_hook

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 for Android: free password hash cracker in your pocket

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

Date:	Tue, 07 Apr 2015 11:58:21 -0400 (EDT)
From:	David Miller <davem@...emloft.net>
To:	hannes@...essinduktion.org
Cc:	netdev@...r.kernel.org, netfilter-devel@...r.kernel.org,
	pablo@...filter.org, jiri@...nulli.us
Subject: Re: [PATCH 1/4] netfilter: Add nf_hook_state initializer function.

From: Hannes Frederic Sowa <hannes@...essinduktion.org>
Date: Tue, 07 Apr 2015 15:41:21 +0200

> Minor suggestion:
> 
> I think we can return the structure as a whole:
> 
> static inline struct nf_hook_state nf_hook_state_init(unsigned int hook,
> ...).
> 
> Being static inline it should not make any difference.

If by some insane possibility this does not get inlined, this structure
gets copied to and from the kernel stack on some cpu ABIs in order to
return it.

Never return structures from functions, ever.
--
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