From owner-svn-src-head@FreeBSD.ORG Fri Apr 17 22:17:23 2015 Return-Path: Delivered-To: svn-src-head@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 81BBD156; Fri, 17 Apr 2015 22:17:23 +0000 (UTC) Received: from svn.freebsd.org (svn.freebsd.org [IPv6:2001:1900:2254:2068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 6FAD2770; Fri, 17 Apr 2015 22:17:23 +0000 (UTC) Received: from svn.freebsd.org ([127.0.1.70]) by svn.freebsd.org (8.14.9/8.14.9) with ESMTP id t3HMHNLY026493; Fri, 17 Apr 2015 22:17:23 GMT (envelope-from loos@FreeBSD.org) Received: (from loos@localhost) by svn.freebsd.org (8.14.9/8.14.9/Submit) id t3HMHNDS026492; Fri, 17 Apr 2015 22:17:23 GMT (envelope-from loos@FreeBSD.org) Message-Id: <201504172217.t3HMHNDS026492@svn.freebsd.org> X-Authentication-Warning: svn.freebsd.org: loos set sender to loos@FreeBSD.org using -f From: Luiz Otavio O Souza Date: Fri, 17 Apr 2015 22:17:23 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r281669 - head/sys/arm/allwinner X-SVN-Group: head MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-head@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: SVN commit messages for the src tree for head/-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 17 Apr 2015 22:17:23 -0000 Author: loos Date: Fri Apr 17 22:17:22 2015 New Revision: 281669 URL: https://svnweb.freebsd.org/changeset/base/281669 Log: Remove unnecessary checks and fix an issue where the interrupt handler could return with lock held. Modified: head/sys/arm/allwinner/if_emac.c Modified: head/sys/arm/allwinner/if_emac.c ============================================================================== --- head/sys/arm/allwinner/if_emac.c Fri Apr 17 22:16:35 2015 (r281668) +++ head/sys/arm/allwinner/if_emac.c Fri Apr 17 22:17:22 2015 (r281669) @@ -662,9 +662,6 @@ emac_intr(void *arg) sc = (struct emac_softc *)arg; EMAC_LOCK(sc); - ifp = sc->emac_ifp; - if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) - return; /* Disable all interrupts */ EMAC_WRITE_REG(sc, EMAC_INT_CTL, 0); @@ -678,18 +675,17 @@ emac_intr(void *arg) emac_rxeof(sc, sc->emac_rx_process_limit); /* Transmit Interrupt check */ - if (reg_val & EMAC_INT_STA_TX){ + if (reg_val & EMAC_INT_STA_TX) { emac_txeof(sc); + ifp = sc->emac_ifp; if (!IFQ_DRV_IS_EMPTY(&ifp->if_snd)) emac_start_locked(ifp); } - if ((ifp->if_drv_flags & IFF_DRV_RUNNING) != 0) { - /* Re-enable interrupt mask */ - reg_val = EMAC_READ_REG(sc, EMAC_INT_CTL); - reg_val |= EMAC_INT_EN; - EMAC_WRITE_REG(sc, EMAC_INT_CTL, reg_val); - } + /* Re-enable interrupt mask */ + reg_val = EMAC_READ_REG(sc, EMAC_INT_CTL); + reg_val |= EMAC_INT_EN; + EMAC_WRITE_REG(sc, EMAC_INT_CTL, reg_val); EMAC_UNLOCK(sc); }