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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5FA16C6379F for ; Wed, 15 Feb 2023 07:07:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233560AbjBOHHL (ORCPT ); Wed, 15 Feb 2023 02:07:11 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37606 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232704AbjBOHG5 (ORCPT ); Wed, 15 Feb 2023 02:06:57 -0500 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id EE80C3526B; Tue, 14 Feb 2023 23:06:29 -0800 (PST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id D607AB81F80; Wed, 15 Feb 2023 07:06:23 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id D7201C433EF; Wed, 15 Feb 2023 07:06:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1676444782; bh=zKOEhuFSWo1zV4mRo8HYCnMM9HZkXqk9xsu6VmUYgsU=; h=From:To:Cc:Subject:Date:From; b=KrFfhXjaZkW1buPnqW7LLv4l1pcBRkCJqp2zdBIurLJIcWqwy3lmo6MJvBmM0rYV8 KovbfGVI9OexliS/YSniRXEkO0jLNn2AzKK/wfILw3llWylKA/rlZtSFOhCrWMmN1m wyLtoPUIgSBhbovW6NDArVfI3eqRrGobOoWMp/UQnbNe1lWer2S/LASEqX+/qtuu4w xzKcQScaTKde4VWPLpi86dtHtviadIBA8Y6xLxlj8YAFhkvLPd3Z4xbQIXC+ILr1sc IJuNPWa9L6P5iDaMFP3dkzWc5hIKXPlOGisGF8PTTwXAUncRLX3n45Br/prwHQVMB6 /d4axh3PUgQJA== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Michael Kelley , Paolo Abeni , Jakub Kicinski , Greg Kroah-Hartman , kys@microsoft.com, haiyangz@microsoft.com, wei.liu@kernel.org, decui@microsoft.com, davem@davemloft.net, edumazet@google.com, Tianyu.Lan@microsoft.com, linux-hyperv@vger.kernel.org, netdev@vger.kernel.org Subject: [PATCH AUTOSEL 6.1 01/93] hv_netvsc: Allocate memory in netvsc_dma_map() with GFP_ATOMIC Date: Wed, 15 Feb 2023 02:04:48 -0500 Message-Id: <20230215070620.2718851-1-sashal@kernel.org> X-Mailer: git-send-email 2.39.0 MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Michael Kelley commit c6aa9d3b43cd11ac13a8220368a3b0483c6751d4 upstream. Memory allocations in the network transmit path must use GFP_ATOMIC so they won't sleep. Reported-by: Paolo Abeni Link: https://lore.kernel.org/lkml/8a4d08f94d3e6fe8b6da68440eaa89a088ad84f9.camel@redhat.com/ Fixes: 846da38de0e8 ("net: netvsc: Add Isolation VM support for netvsc driver") Cc: stable@vger.kernel.org Signed-off-by: Michael Kelley Link: https://lore.kernel.org/r/1675714317-48577-1-git-send-email-mikelley@microsoft.com Signed-off-by: Jakub Kicinski Signed-off-by: Greg Kroah-Hartman --- drivers/net/hyperv/netvsc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/hyperv/netvsc.c b/drivers/net/hyperv/netvsc.c index e02d1e3ef672a..79f4e13620a46 100644 --- a/drivers/net/hyperv/netvsc.c +++ b/drivers/net/hyperv/netvsc.c @@ -1034,7 +1034,7 @@ static int netvsc_dma_map(struct hv_device *hv_dev, packet->dma_range = kcalloc(page_count, sizeof(*packet->dma_range), - GFP_KERNEL); + GFP_ATOMIC); if (!packet->dma_range) return -ENOMEM; -- 2.39.0