From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751649AbdJEBCS (ORCPT ); Wed, 4 Oct 2017 21:02:18 -0400 Received: from mail-pf0-f181.google.com ([209.85.192.181]:48318 "EHLO mail-pf0-f181.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752086AbdJEAvi (ORCPT ); Wed, 4 Oct 2017 20:51:38 -0400 X-Google-Smtp-Source: AOwi7QBGvIKxDeakeJ9XN/eUUCneDW9DrGk42FzFZp+vMVSrURS0csGTGKUwu5igBOysPnJ9h0pXAA== Date: Wed, 4 Oct 2017 17:51:35 -0700 From: Kees Cook To: linux-kernel@vger.kernel.org Cc: "David S. Miller" , Johannes Berg , Eric Dumazet , netdev@vger.kernel.org, Thomas Gleixner Subject: [PATCH] chelsio: Convert timers to use timer_setup() Message-ID: <20171005005135.GA23444@beast> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org In preparation for unconditionally passing the struct timer_list pointer to all timer callbacks, switch to using the new timer_setup() and from_timer() to pass the timer pointer explicitly. Cc: "David S. Miller" Cc: Johannes Berg Cc: Eric Dumazet Cc: netdev@vger.kernel.org Cc: Thomas Gleixner Signed-off-by: Kees Cook --- This requires commit 686fef928bba ("timer: Prepare to change timer callback argument type") in v4.14-rc3, but should be otherwise stand-alone. --- drivers/net/ethernet/chelsio/cxgb/sge.c | 30 +++++++++++++----------------- 1 file changed, 13 insertions(+), 17 deletions(-) diff --git a/drivers/net/ethernet/chelsio/cxgb/sge.c b/drivers/net/ethernet/chelsio/cxgb/sge.c index 0f13a7f7c1d3..30de26ef3da4 100644 --- a/drivers/net/ethernet/chelsio/cxgb/sge.c +++ b/drivers/net/ethernet/chelsio/cxgb/sge.c @@ -1882,10 +1882,10 @@ netdev_tx_t t1_start_xmit(struct sk_buff *skb, struct net_device *dev) /* * Callback for the Tx buffer reclaim timer. Runs with softirqs disabled. */ -static void sge_tx_reclaim_cb(unsigned long data) +static void sge_tx_reclaim_cb(struct timer_list *t) { int i; - struct sge *sge = (struct sge *)data; + struct sge *sge = from_timer(sge, t, tx_reclaim_timer); for (i = 0; i < SGE_CMDQ_N; ++i) { struct cmdQ *q = &sge->cmdQ[i]; @@ -1978,10 +1978,10 @@ void t1_sge_start(struct sge *sge) /* * Callback for the T2 ESPI 'stuck packet feature' workaorund */ -static void espibug_workaround_t204(unsigned long data) +static void espibug_workaround_t204(struct timer_list *t) { - struct adapter *adapter = (struct adapter *)data; - struct sge *sge = adapter->sge; + struct sge *sge = from_timer(sge, t, espibug_timer); + struct adapter *adapter = sge->adapter; unsigned int nports = adapter->params.nports; u32 seop[MAX_NPORTS]; @@ -2021,10 +2021,10 @@ static void espibug_workaround_t204(unsigned long data) mod_timer(&sge->espibug_timer, jiffies + sge->espibug_timeout); } -static void espibug_workaround(unsigned long data) +static void espibug_workaround(struct timer_list *t) { - struct adapter *adapter = (struct adapter *)data; - struct sge *sge = adapter->sge; + struct sge *sge = from_timer(sge, t, espibug_timer); + struct adapter *adapter = sge->adapter; if (netif_running(adapter->port[0].dev)) { struct sk_buff *skb = sge->espibug_skb[0]; @@ -2075,19 +2075,15 @@ struct sge *t1_sge_create(struct adapter *adapter, struct sge_params *p) goto nomem_port; } - init_timer(&sge->tx_reclaim_timer); - sge->tx_reclaim_timer.data = (unsigned long)sge; - sge->tx_reclaim_timer.function = sge_tx_reclaim_cb; + timer_setup(&sge->tx_reclaim_timer, sge_tx_reclaim_cb, 0); if (is_T2(sge->adapter)) { - init_timer(&sge->espibug_timer); + timer_setup(&sge->espibug_timer, + adapter->params.nports > 1 ? espibug_workaround_t204 : espibug_workaround, + 0); - if (adapter->params.nports > 1) { + if (adapter->params.nports > 1) tx_sched_init(sge); - sge->espibug_timer.function = espibug_workaround_t204; - } else - sge->espibug_timer.function = espibug_workaround; - sge->espibug_timer.data = (unsigned long)sge->adapter; sge->espibug_timeout = 1; /* for T204, every 10ms */ -- 2.7.4 -- Kees Cook Pixel Security