From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 81551C433FE for ; Mon, 4 Oct 2021 13:35:55 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 698FD61248 for ; Mon, 4 Oct 2021 13:35:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237069AbhJDNhn (ORCPT ); Mon, 4 Oct 2021 09:37:43 -0400 Received: from mail.kernel.org ([198.145.29.99]:48020 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237852AbhJDNfd (ORCPT ); Mon, 4 Oct 2021 09:35:33 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id DE93C6323B; Mon, 4 Oct 2021 13:16:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1633353371; bh=smiUTtRiaGoU+nFcMxewv5eiXgcGWdbOb6D2V+gBoC8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=2onJPbJMwr1y/s9bJ+7LJ3s1O63D4BrrVEJ7g8rKRTJ+Dsl2kVrYMrsDZ0oIEBnf9 07Jj4WkzZIP6oDACK6KXqpxlkMrIfjwRIz3SjzZm69X1iOAoMv6EUWYkcMwfNUEVLj QhmaNJEcvniVyBell0Dc7UjMFc4ZSF1YBsyJXqu4= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Aaro Koskinen , "David S. Miller" , Sasha Levin Subject: [PATCH 5.14 103/172] smsc95xx: fix stalled rx after link change Date: Mon, 4 Oct 2021 14:52:33 +0200 Message-Id: <20211004125048.309479236@linuxfoundation.org> X-Mailer: git-send-email 2.33.0 In-Reply-To: <20211004125044.945314266@linuxfoundation.org> References: <20211004125044.945314266@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Aaro Koskinen [ Upstream commit 5ab8a447bcfee1ded709e7ff5dc7608ca9f66ae2 ] After commit 05b35e7eb9a1 ("smsc95xx: add phylib support"), link changes are no longer propagated to usbnet. As a result, rx URB allocation won't happen until there is a packet sent out first (this might never happen, e.g. running just ssh server with a static IP). Fix by triggering usbnet EVENT_LINK_CHANGE. Fixes: 05b35e7eb9a1 ("smsc95xx: add phylib support") Signed-off-by: Aaro Koskinen Signed-off-by: David S. Miller Signed-off-by: Sasha Levin --- drivers/net/usb/smsc95xx.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/net/usb/smsc95xx.c b/drivers/net/usb/smsc95xx.c index 4c8ee1cff4d4..4cb71dd1998c 100644 --- a/drivers/net/usb/smsc95xx.c +++ b/drivers/net/usb/smsc95xx.c @@ -1178,7 +1178,10 @@ static void smsc95xx_unbind(struct usbnet *dev, struct usb_interface *intf) static void smsc95xx_handle_link_change(struct net_device *net) { + struct usbnet *dev = netdev_priv(net); + phy_print_status(net->phydev); + usbnet_defer_kevent(dev, EVENT_LINK_CHANGE); } static int smsc95xx_start_phy(struct usbnet *dev) -- 2.33.0