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 PHC | |
Open Source and information security mailing list archives
| ||
|
Date: Mon, 26 Feb 2007 17:42:27 +1000 From: Philip Craig <philipc@...pgear.com> To: Francois Romieu <romieu@...zoreil.com> Cc: Mike Isely <isely@...ox.com>, Jeff Garzik <jeff@...zik.org>, netdev@...r.kernel.org Subject: Re: [PATCH 4/5] r8169: more alignment for the 0x8168 Francois Romieu wrote: > The experimental r8169 patch of the day against 2.6.21-rc1 is available at: > http://www.fr.zoreil.com/linux/kernel/2.6.x/2.6.21-rc1/ Is 0006-r8169-confusion-between-hardware-and-IP-header-alignment.txt the only relevant patch? This only partially helps. Many of the packets are greater than 200 bytes so copybreak doesn't apply to them. Can we assume anything about the alignment of skb->data? I think it should be 4 byte aligned, otherwise the whole NET_IP_ALIGN thing won't work. All the drivers I looked at just reserve NET_IP_ALIGN without checking the alignment first. So can you do something like set align to 0 for RTL_CFG_0 and change rtl8169_alloc_rx_skb() to: skb_reserve(skb, align ? (align - 1) & (u32)skb->data : NET_IP_ALIGN); BTW, should the alignment expression be: (((u32)skb->data + (align - 1)) & ~(align - 1)) - (u32)skb->data - 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