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 8AD4AC4167D for ; Tue, 12 Apr 2022 08:40:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1383126AbiDLIft (ORCPT ); Tue, 12 Apr 2022 04:35:49 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56896 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1356345AbiDLHfS (ORCPT ); Tue, 12 Apr 2022 03:35:18 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id EB88F50E2E; Tue, 12 Apr 2022 00:09:22 -0700 (PDT) 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 dfw.source.kernel.org (Postfix) with ESMTPS id 9B978616E3; Tue, 12 Apr 2022 07:09:21 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id A961EC385A5; Tue, 12 Apr 2022 07:09:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1649747361; bh=ml72iPm2ujhvVrlOqTzu2cWjMgaiiwbonFftTOGfFDo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=hlVC9e2XmEh927T042mUJOUbm5p/5D2pagEdHpCaJ9C5TJHcfFKebNEbykHc9qfys bIfcMPcps75ZCC+heaUdX2gk+dmtce7GBEZMF/yu60qeHcD2KkhcFiLmJscn0sw0m9 5UMaCWGezafkDKIAXyFw1UQvYMhKQoRzOh5ERHO4= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Witold Fijalkowski , Jedrzej Jagielski , Gurucharan G , Tony Nguyen , Sasha Levin Subject: [PATCH 5.17 050/343] i40e: Add sending commands in atomic context Date: Tue, 12 Apr 2022 08:27:48 +0200 Message-Id: <20220412062952.550900069@linuxfoundation.org> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220412062951.095765152@linuxfoundation.org> References: <20220412062951.095765152@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: Jedrzej Jagielski [ Upstream commit 59b3d7350ff35c939b8e173eb2eecac80a5ee046 ] Change functions: - i40e_aq_add_macvlan - i40e_aq_remove_macvlan - i40e_aq_delete_element - i40e_aq_add_vsi - i40e_aq_update_vsi_params to explicitly use i40e_asq_send_command_atomic(..., true) instead of i40e_asq_send_command, as they use mutexes and do some work in an atomic context. Without this change setting vlan via netdev will fail with call trace cased by bug "BUG: scheduling while atomic". Signed-off-by: Witold Fijalkowski Signed-off-by: Jedrzej Jagielski Tested-by: Gurucharan G Signed-off-by: Tony Nguyen Signed-off-by: Sasha Levin --- drivers/net/ethernet/intel/i40e/i40e_common.c | 21 +++++++++++-------- 1 file changed, 12 insertions(+), 9 deletions(-) diff --git a/drivers/net/ethernet/intel/i40e/i40e_common.c b/drivers/net/ethernet/intel/i40e/i40e_common.c index 9ddeb015eb7e..e830987a8c6d 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_common.c +++ b/drivers/net/ethernet/intel/i40e/i40e_common.c @@ -1899,8 +1899,9 @@ i40e_status i40e_aq_add_vsi(struct i40e_hw *hw, desc.flags |= cpu_to_le16((u16)(I40E_AQ_FLAG_BUF | I40E_AQ_FLAG_RD)); - status = i40e_asq_send_command(hw, &desc, &vsi_ctx->info, - sizeof(vsi_ctx->info), cmd_details); + status = i40e_asq_send_command_atomic(hw, &desc, &vsi_ctx->info, + sizeof(vsi_ctx->info), + cmd_details, true); if (status) goto aq_add_vsi_exit; @@ -2287,8 +2288,9 @@ i40e_status i40e_aq_update_vsi_params(struct i40e_hw *hw, desc.flags |= cpu_to_le16((u16)(I40E_AQ_FLAG_BUF | I40E_AQ_FLAG_RD)); - status = i40e_asq_send_command(hw, &desc, &vsi_ctx->info, - sizeof(vsi_ctx->info), cmd_details); + status = i40e_asq_send_command_atomic(hw, &desc, &vsi_ctx->info, + sizeof(vsi_ctx->info), + cmd_details, true); vsi_ctx->vsis_allocated = le16_to_cpu(resp->vsi_used); vsi_ctx->vsis_unallocated = le16_to_cpu(resp->vsi_free); @@ -2673,8 +2675,8 @@ i40e_status i40e_aq_add_macvlan(struct i40e_hw *hw, u16 seid, if (buf_size > I40E_AQ_LARGE_BUF) desc.flags |= cpu_to_le16((u16)I40E_AQ_FLAG_LB); - status = i40e_asq_send_command(hw, &desc, mv_list, buf_size, - cmd_details); + status = i40e_asq_send_command_atomic(hw, &desc, mv_list, buf_size, + cmd_details, true); return status; } @@ -2715,8 +2717,8 @@ i40e_status i40e_aq_remove_macvlan(struct i40e_hw *hw, u16 seid, if (buf_size > I40E_AQ_LARGE_BUF) desc.flags |= cpu_to_le16((u16)I40E_AQ_FLAG_LB); - status = i40e_asq_send_command(hw, &desc, mv_list, buf_size, - cmd_details); + status = i40e_asq_send_command_atomic(hw, &desc, mv_list, buf_size, + cmd_details, true); return status; } @@ -3868,7 +3870,8 @@ i40e_status i40e_aq_delete_element(struct i40e_hw *hw, u16 seid, cmd->seid = cpu_to_le16(seid); - status = i40e_asq_send_command(hw, &desc, NULL, 0, cmd_details); + status = i40e_asq_send_command_atomic(hw, &desc, NULL, 0, + cmd_details, true); return status; } -- 2.35.1