Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760886AbZFZOwF (ORCPT ); Fri, 26 Jun 2009 10:52:05 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752831AbZFZOv6 (ORCPT ); Fri, 26 Jun 2009 10:51:58 -0400 Received: from ru.mvista.com ([213.79.90.228]:10872 "EHLO buildserver.ru.mvista.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1752004AbZFZOv5 (ORCPT ); Fri, 26 Jun 2009 10:51:57 -0400 Date: Fri, 26 Jun 2009 18:51:59 +0400 From: Anton Vorontsov To: David Miller Cc: Stephen Hemminger , netdev@vger.kernel.org, linuxppc-dev@ozlabs.org, linux-kernel@vger.kernel.org Subject: [PATCH] sky2: Fix checksum endianness Message-ID: <20090626145159.GA2242@oksana.dev.rtsoft.ru> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline User-Agent: Mutt/1.5.20 (2009-06-14) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1699 Lines: 44 sky2 driver on PowerPC targets floods kernel log with following errors: eth1: hw csum failure. Call Trace: [ef84b8a0] [c00075e4] show_stack+0x50/0x160 (unreliable) [ef84b8d0] [c02fa178] netdev_rx_csum_fault+0x3c/0x5c [ef84b8f0] [c02f6920] __skb_checksum_complete_head+0x7c/0x84 [ef84b900] [c02f693c] __skb_checksum_complete+0x14/0x24 [ef84b910] [c0337e08] tcp_v4_rcv+0x4c8/0x6f8 [ef84b940] [c031a9c8] ip_local_deliver+0x98/0x210 [ef84b960] [c031a788] ip_rcv+0x38c/0x534 [ef84b990] [c0300338] netif_receive_skb+0x260/0x36c [ef84b9c0] [c025de00] sky2_poll+0x5dc/0xcf8 [ef84ba20] [c02fb7fc] net_rx_action+0xc0/0x144 The NIC is Yukon-2 EC chip revision 1. Converting checksum field from le16 to CPU byte order fixes the issue. Signed-off-by: Anton Vorontsov --- drivers/net/sky2.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/drivers/net/sky2.c b/drivers/net/sky2.c index 7681d28..daf961a 100644 --- a/drivers/net/sky2.c +++ b/drivers/net/sky2.c @@ -2495,7 +2495,7 @@ static int sky2_status_intr(struct sky2_hw *hw, int to_do, u16 idx) if (likely(status >> 16 == (status & 0xffff))) { skb = sky2->rx_ring[sky2->rx_next].skb; skb->ip_summed = CHECKSUM_COMPLETE; - skb->csum = status & 0xffff; + skb->csum = le16_to_cpu(status); } else { printk(KERN_NOTICE PFX "%s: hardware receive " "checksum problem (status = %#x)\n", -- 1.6.3.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/