Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753222Ab3GBPm4 (ORCPT ); Tue, 2 Jul 2013 11:42:56 -0400 Received: from cpc6-farn7-2-0-cust119.6-2.cable.virginmedia.com ([81.110.26.120]:42314 "EHLO localhost.localdomain" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1752222Ab3GBPl6 (ORCPT ); Tue, 2 Jul 2013 11:41:58 -0400 From: Dean Jenkins To: Andre Naujoks , linux-kernel@vger.kernel.org Cc: Jiri Slaby , Greg Kroah-Hartman Subject: [PATCH 4/5] SLIP: Add error message for xleft non-zero Date: Tue, 2 Jul 2013 16:31:33 +0100 Message-Id: <1372779094-11730-5-git-send-email-Dean_Jenkins@mentor.com> X-Mailer: git-send-email 1.8.1.5 In-Reply-To: <1372779094-11730-1-git-send-email-Dean_Jenkins@mentor.com> References: <1372779094-11730-1-git-send-email-Dean_Jenkins@mentor.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1065 Lines: 33 Add a printk to show when xleft is non-zero in sl_encaps. The idea is to see whether a previous SLIP frame failed to be fully transmitted. Signed-off-by: Dean Jenkins --- drivers/net/slip/slip.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/net/slip/slip.c b/drivers/net/slip/slip.c index f7303e0..e2eff84 100644 --- a/drivers/net/slip/slip.c +++ b/drivers/net/slip/slip.c @@ -395,6 +395,10 @@ static void sl_encaps(struct slip *sl, unsigned char *icp, int len) #endif count = slip_esc(p, sl->xbuff, len); + if (sl->xleft) + printk(KERN_ERR "%s: ERROR: xleft is non-zero %d\n", + __func__, sl->xleft); + /* ensure xleft set by the previous SLIP frame is zero for this frame * otherwise slip_write_wakeup() can cause a recursive loop. */ -- 1.8.1.5 -- 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/