From patchwork Tue Apr 15 09:05:41 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Meghana Malladi X-Patchwork-Id: 14051733 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 22FFEC369AB for ; Tue, 15 Apr 2025 09:10:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Type: Content-Transfer-Encoding:MIME-Version:References:In-Reply-To:Message-ID:Date :Subject:CC:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=dhN7CQrE/5u72jpN7sVyLSCb0YI7IyBRn8sGikRoHfA=; b=gVCM8aX3fuNpZUYOv/wwcqtO7F 4C2QZ3gG291mFwRvIg6cHBitMg5O/5uKv3xML6qhXhlVyDmRkx0tLIfFy7FXEa5AIjxM/m91BuWvn 3ZviMlQDpOIpzD1iKRoH3XuLrl02PtgcrLbvo9Ks+WmMd0DdAA8+r1WXRptiy2KJ7ofiH4a2Ha7Zh KyfDNqkvH5pNYOJH+r/KEnU/4G3IpzXhG5BRfrc2yR9oLffmbWNRXmJt0z+FMwV3SkT7a1BBhnncX AX8ewtZTr+dyXpwg8XVaDD+itlPWw3dpLXYx5UUnMdxnEzLipdBD4V7/IQPpenFHNFPdpW8vGW1+4 X1uABn3g==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1u4cIn-0000000574n-0imW; Tue, 15 Apr 2025 09:09:57 +0000 Received: from lelvem-ot01.ext.ti.com ([198.47.23.234]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1u4cFA-000000056XB-3lzG for linux-arm-kernel@lists.infradead.org; Tue, 15 Apr 2025 09:06:14 +0000 Received: from lelv0265.itg.ti.com ([10.180.67.224]) by lelvem-ot01.ext.ti.com (8.15.2/8.15.2) with ESMTPS id 53F95qdf2436542 (version=TLSv1.2 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 15 Apr 2025 04:05:52 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1744707952; bh=dhN7CQrE/5u72jpN7sVyLSCb0YI7IyBRn8sGikRoHfA=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=Ge7XiiDhwC5PKNTLo8uuHDlFNUHS8RixNAZKY8l6niR0GWVS9F3e7Ek4DQ/UnY3dr 8XM8xi/s4JKWTrrTzsxgGeJLE3N/c0CfGUotwJGYktOMXA7fVey9H8dx/0z5XqGY3p 34+7HsTRvj7f5xCqk9RAKovUF1Tce0Zoapu1VI4U= Received: from DLEE105.ent.ti.com (dlee105.ent.ti.com [157.170.170.35]) by lelv0265.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 53F95qic003107 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Tue, 15 Apr 2025 04:05:52 -0500 Received: from DLEE109.ent.ti.com (157.170.170.41) by DLEE105.ent.ti.com (157.170.170.35) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.23; Tue, 15 Apr 2025 04:05:51 -0500 Received: from lelvsmtp6.itg.ti.com (10.180.75.249) by DLEE109.ent.ti.com (157.170.170.41) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.23 via Frontend Transport; Tue, 15 Apr 2025 04:05:51 -0500 Received: from fllv0122.itg.ti.com (fllv0122.itg.ti.com [10.247.120.72]) by lelvsmtp6.itg.ti.com (8.15.2/8.15.2) with ESMTP id 53F95pki029255; Tue, 15 Apr 2025 04:05:51 -0500 Received: from localhost (meghana-pc.dhcp.ti.com [10.24.69.13] (may be forged)) by fllv0122.itg.ti.com (8.14.7/8.14.7) with ESMTP id 53F95owf010956; Tue, 15 Apr 2025 04:05:50 -0500 From: Meghana Malladi To: , , , , , , , , , , , , , , , CC: , , , , , Vignesh Raghavendra , Roger Quadros , Subject: [PATCH net v4 1/3] net: ti: icssg-prueth: Fix kernel warning while bringing down network interface Date: Tue, 15 Apr 2025 14:35:41 +0530 Message-ID: <20250415090543.717991-2-m-malladi@ti.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250415090543.717991-1-m-malladi@ti.com> References: <20250415090543.717991-1-m-malladi@ti.com> MIME-Version: 1.0 X-C2ProcessedOrg: 333ef613-75bf-4e12-a4b1-8e3623f5dcea X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250415_020613_040818_BE9DE87E X-CRM114-Status: GOOD ( 11.37 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org During network interface initialization, the NIC driver needs to register its Rx queue with the XDP, to ensure the incoming XDP buffer carries a pointer reference to this info and is stored inside xdp_rxq_info. While this struct isn't tied to XDP prog, if there are any changes in Rx queue, the NIC driver needs to stop the Rx queue by unregistering with XDP before purging and reallocating memory. Drop page_pool destroy during Rx channel reset as this is already handled by XDP during xdp_rxq_info_unreg (Rx queue unregister), failing to do will cause the following warning: warning logs: https://gist.github.com/MeghanaMalladiTI/eb627e5dc8de24e42d7d46572c13e576 Fixes: 46eeb90f03e0 ("net: ti: icssg-prueth: Use page_pool API for RX buffer allocation") Signed-off-by: Meghana Malladi Reviewed-by: Simon Horman Reviewed-by: Roger Quadros Reviewed-by: Jacob Keller --- Changes from v3 (v4-v3): - Collected RB tag from Roger Quadros drivers/net/ethernet/ti/icssg/icssg_common.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/drivers/net/ethernet/ti/icssg/icssg_common.c b/drivers/net/ethernet/ti/icssg/icssg_common.c index 14002b026452..ec643fb69d30 100644 --- a/drivers/net/ethernet/ti/icssg/icssg_common.c +++ b/drivers/net/ethernet/ti/icssg/icssg_common.c @@ -1215,9 +1215,6 @@ void prueth_reset_rx_chan(struct prueth_rx_chn *chn, prueth_rx_cleanup); if (disable) k3_udma_glue_disable_rx_chn(chn->rx_chn); - - page_pool_destroy(chn->pg_pool); - chn->pg_pool = NULL; } EXPORT_SYMBOL_GPL(prueth_reset_rx_chan);