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
| ||
|
Date: Thu, 8 May 2008 21:32:54 +0800 From: Herbert Xu <herbert@...dor.apana.org.au> To: Michael Buesch <mb@...sch.de> Cc: Johannes Berg <johannes@...solutions.net>, linux-wireless@...r.kernel.org, netdev@...r.kernel.org, Ron Rindjunsky <ron.rindjunsky@...el.com>, Tomas Winkler <tomasw@...il.com>, Ivo van Doorn <ivdoorn@...il.com>, Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@...el.com> Subject: Re: [PATCH] mac80211: rewrite fragmentation code On Thu, May 08, 2008 at 03:13:56PM +0200, Michael Buesch wrote: > > Ok, why is nobody actually answering my _question_? :) > So I'll try to answer it by myself: the hard_start_xmit callback > is actually supposed to return "void", but it returns "int" just > for historical reasons. So there is no way to fail in a TX handler. Pretty much. When lockless drivers were the vogue the return value was useful but as we've since found better ways to scale NICs in an SMP environment (first the tg3 model, and then multi- queue TX) that don't have the problems associated with requeueing the packet, any non-zero return value should only be used by existing code. Cheers, -- Visit Openswan at http://www.openswan.org/ Email: Herbert Xu ~{PmV>HI~} <herbert@...dor.apana.org.au> Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt -- 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
Powered by blists - more mailing lists