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 X-Spam-Level: X-Spam-Status: No, score=-18.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 12F51C432C3 for ; Tue, 2 Mar 2021 05:53:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E7B1C60241 for ; Tue, 2 Mar 2021 05:53:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1348009AbhCBCyw (ORCPT ); Mon, 1 Mar 2021 21:54:52 -0500 Received: from mail.kernel.org ([198.145.29.99]:34914 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S242811AbhCAUEI (ORCPT ); Mon, 1 Mar 2021 15:04:08 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id 28A05653A0; Mon, 1 Mar 2021 17:58:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1614621496; bh=eITzPkw4zzb73jnNnryBS8HhDfCDDfZbl6FiYhqnhe0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=MDal+YyILpEKJGEnqUUe+gkpSHsWFLDPZAHSVnPUNSgvbvsLwAKfF8CXUtnmzlkyE F+flFII03SEnm8/DodIFth69kb+Mo2n59fjODBL8V9Ak82X5vV9fmypvtfWjc66C+C btpcmnwQlPijyr3lKSkq0Ao9HYMBYFk16yJJPOg4= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Sascha Hauer , Camelia Groza , Madalin Bucur , Jesper Dangaard Brouer , Jakub Kicinski , Sasha Levin Subject: [PATCH 5.11 538/775] dpaa_eth: fix the access method for the dpaa_napi_portal Date: Mon, 1 Mar 2021 17:11:46 +0100 Message-Id: <20210301161228.069612957@linuxfoundation.org> X-Mailer: git-send-email 2.30.1 In-Reply-To: <20210301161201.679371205@linuxfoundation.org> References: <20210301161201.679371205@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: linux-kernel@vger.kernel.org From: Camelia Groza [ Upstream commit 433dfc99aa3e0acbf655b961d98eb690162f758f ] The current use of container_of is flawed and unnecessary. Obtain the dpaa_napi_portal reference from the private percpu data instead. Fixes: a1e031ffb422 ("dpaa_eth: add XDP_REDIRECT support") Reported-by: Sascha Hauer Signed-off-by: Camelia Groza Acked-by: Madalin Bucur Acked-by: Jesper Dangaard Brouer Link: https://lore.kernel.org/r/20210218182106.22613-1-camelia.groza@nxp.com Signed-off-by: Jakub Kicinski Signed-off-by: Sasha Levin --- drivers/net/ethernet/freescale/dpaa/dpaa_eth.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c b/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c index 6faa20bed4885..9905caeaeee3e 100644 --- a/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c +++ b/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c @@ -2672,7 +2672,6 @@ static enum qman_cb_dqrr_result rx_default_dqrr(struct qman_portal *portal, u32 hash; u64 ns; - np = container_of(&portal, struct dpaa_napi_portal, p); dpaa_fq = container_of(fq, struct dpaa_fq, fq_base); fd_status = be32_to_cpu(fd->status); fd_format = qm_fd_get_format(fd); @@ -2687,6 +2686,7 @@ static enum qman_cb_dqrr_result rx_default_dqrr(struct qman_portal *portal, percpu_priv = this_cpu_ptr(priv->percpu_priv); percpu_stats = &percpu_priv->stats; + np = &percpu_priv->np; if (unlikely(dpaa_eth_napi_schedule(percpu_priv, portal, sched_napi))) return qman_cb_dqrr_stop; -- 2.27.0