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Date: Mon, 29 Oct 2007 15:41:50 +0900 (JST) From: YOSHIFUJI Hideaki / 吉藤英明 <yoshfuji@...ux-ipv6.org> To: mitch@...ux.vnet.ibm.com, herbert@...dor.apana.org.au Cc: davem@...emloft.net, netdev@...r.kernel.org, yoshfuji@...ux-ipv6.org Subject: Re: [UDP6]: Restore sk_filter optimisation In article <20071029153320.d2c00f62.mitch@...ux.vnet.ibm.com> (at Mon, 29 Oct 2007 15:33:20 +0900), Mitsuru Chinen <mitch@...ux.vnet.ibm.com> says: > Hello Herbert, > > Let me ask a question about this patch. > After this patch was applied, 2 of the protocol stack behaviors were > changed when it receives a UDP datagram with broken checksum: > > 1. udp6InDatagrams is incremented instead of udpInErrors > 2. In userland, recvfrom() replies an error with EAGAIN. > recvfrom() wasn't aware of such a packet before. > > Are these changes intentional? And, we're not sure how much the "optimization"'s benefit is. It is even worse when we are handling multicast packets. --yoshfuji - 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
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