From patchwork Wed Aug 16 14:06:21 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Przemek Kitszel X-Patchwork-Id: 13355234 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 BF6B2C04FDF for ; Wed, 16 Aug 2023 14:10:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S245702AbjHPOJ5 (ORCPT ); Wed, 16 Aug 2023 10:09:57 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44730 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1343521AbjHPOJ3 (ORCPT ); Wed, 16 Aug 2023 10:09:29 -0400 Received: from mgamail.intel.com (mgamail.intel.com [134.134.136.24]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 569232706; Wed, 16 Aug 2023 07:09:28 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1692194968; x=1723730968; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=4GBf2EESOi7onKw3vz0dKPSBTjhZKbd/0pu82xSmftQ=; b=UIQasxtDYFALXcedZmINjWDxK4o+6ewr3ppUcaQAyai6X8be9Ns5xjIY XgIUyiAbE/dW2mcAQrAmW73ixCSt/AAYNOyDnIYw2bHWhE6qk0lWdWm/I iYHCoxTWHYxJ5knGG2IYo3zBAHRI149OPGyVPKXbgaZEZD54D0h67f9p4 NdurTbdJYtnuTAqcv5f4nfKF+60KXtO/WpuJJxwNJS6BsMi5gDp+uZS2a 01hTONXPy6JQ/u8lEk6oFkBaVmQIu6NtBAc1wLhXoWqZhWGsd7qIDWp9s 1phCDiW4XZpcKGazs7jCRXSa9ePU6p315XQDXTvDNbX2TM7xpHBjf8Ut+ g==; X-IronPort-AV: E=McAfee;i="6600,9927,10803"; a="375312791" X-IronPort-AV: E=Sophos;i="6.01,177,1684825200"; d="scan'208";a="375312791" Received: from fmsmga006.fm.intel.com ([10.253.24.20]) by orsmga102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 16 Aug 2023 07:09:27 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10803"; a="980753075" X-IronPort-AV: E=Sophos;i="6.01,177,1684825200"; d="scan'208";a="980753075" Received: from irvmail002.ir.intel.com ([10.43.11.120]) by fmsmga006.fm.intel.com with ESMTP; 16 Aug 2023 07:09:24 -0700 Received: from pelor.igk.intel.com (pelor.igk.intel.com [10.123.220.13]) by irvmail002.ir.intel.com (Postfix) with ESMTP id 71DFD34EF3; Wed, 16 Aug 2023 15:09:23 +0100 (IST) From: Przemek Kitszel To: Kees Cook , netdev@vger.kernel.org Cc: Jacob Keller , intel-wired-lan@lists.osuosl.org, Alexander Lobakin , linux-hardening@vger.kernel.org, Steven Zou , Przemek Kitszel Subject: [PATCH net-next v3 5/7] ice: make use of DEFINE_FLEX() for struct ice_aqc_add_tx_qgrp Date: Wed, 16 Aug 2023 10:06:21 -0400 Message-Id: <20230816140623.452869-6-przemyslaw.kitszel@intel.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230816140623.452869-1-przemyslaw.kitszel@intel.com> References: <20230816140623.452869-1-przemyslaw.kitszel@intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-hardening@vger.kernel.org Use DEFINE_FLEX() macro for 1-elem flex array use case of struct ice_aqc_add_tx_qgrp. Signed-off-by: Przemek Kitszel --- add/remove: 0/2 grow/shrink: 2/2 up/down: 220/-255 (-35) --- drivers/net/ethernet/intel/ice/ice_lib.c | 23 +++++------------------ drivers/net/ethernet/intel/ice/ice_xsk.c | 22 ++++++++-------------- 2 files changed, 13 insertions(+), 32 deletions(-) diff --git a/drivers/net/ethernet/intel/ice/ice_lib.c b/drivers/net/ethernet/intel/ice/ice_lib.c index 927518fcad51..c005ee1006f1 100644 --- a/drivers/net/ethernet/intel/ice/ice_lib.c +++ b/drivers/net/ethernet/intel/ice/ice_lib.c @@ -1821,21 +1821,14 @@ int ice_vsi_cfg_single_rxq(struct ice_vsi *vsi, u16 q_idx) int ice_vsi_cfg_single_txq(struct ice_vsi *vsi, struct ice_tx_ring **tx_rings, u16 q_idx) { - struct ice_aqc_add_tx_qgrp *qg_buf; - int err; + DEFINE_FLEX(struct ice_aqc_add_tx_qgrp, qg_buf, txqs, 1); if (q_idx >= vsi->alloc_txq || !tx_rings || !tx_rings[q_idx]) return -EINVAL; - qg_buf = kzalloc(struct_size(qg_buf, txqs, 1), GFP_KERNEL); - if (!qg_buf) - return -ENOMEM; - qg_buf->num_txqs = 1; - err = ice_vsi_cfg_txq(vsi, tx_rings[q_idx], qg_buf); - kfree(qg_buf); - return err; + return ice_vsi_cfg_txq(vsi, tx_rings[q_idx], qg_buf); } /** @@ -1877,24 +1870,18 @@ int ice_vsi_cfg_rxqs(struct ice_vsi *vsi) static int ice_vsi_cfg_txqs(struct ice_vsi *vsi, struct ice_tx_ring **rings, u16 count) { - struct ice_aqc_add_tx_qgrp *qg_buf; - u16 q_idx = 0; + DEFINE_FLEX(struct ice_aqc_add_tx_qgrp, qg_buf, txqs, 1); int err = 0; - - qg_buf = kzalloc(struct_size(qg_buf, txqs, 1), GFP_KERNEL); - if (!qg_buf) - return -ENOMEM; + u16 q_idx; qg_buf->num_txqs = 1; for (q_idx = 0; q_idx < count; q_idx++) { err = ice_vsi_cfg_txq(vsi, rings[q_idx], qg_buf); if (err) - goto err_cfg_txqs; + break; } -err_cfg_txqs: - kfree(qg_buf); return err; } diff --git a/drivers/net/ethernet/intel/ice/ice_xsk.c b/drivers/net/ethernet/intel/ice/ice_xsk.c index 2a3f0834e139..99954508184f 100644 --- a/drivers/net/ethernet/intel/ice/ice_xsk.c +++ b/drivers/net/ethernet/intel/ice/ice_xsk.c @@ -217,61 +217,55 @@ static int ice_qp_dis(struct ice_vsi *vsi, u16 q_idx) */ static int ice_qp_ena(struct ice_vsi *vsi, u16 q_idx) { - struct ice_aqc_add_tx_qgrp *qg_buf; + DEFINE_FLEX(struct ice_aqc_add_tx_qgrp, qg_buf, txqs, 1); + u16 size = __struct_size(qg_buf); struct ice_q_vector *q_vector; struct ice_tx_ring *tx_ring; struct ice_rx_ring *rx_ring; - u16 size; int err; if (q_idx >= vsi->num_rxq || q_idx >= vsi->num_txq) return -EINVAL; - size = struct_size(qg_buf, txqs, 1); - qg_buf = kzalloc(size, GFP_KERNEL); - if (!qg_buf) - return -ENOMEM; - qg_buf->num_txqs = 1; tx_ring = vsi->tx_rings[q_idx]; rx_ring = vsi->rx_rings[q_idx]; q_vector = rx_ring->q_vector; err = ice_vsi_cfg_txq(vsi, tx_ring, qg_buf); if (err) - goto free_buf; + return err; if (ice_is_xdp_ena_vsi(vsi)) { struct ice_tx_ring *xdp_ring = vsi->xdp_rings[q_idx]; memset(qg_buf, 0, size); qg_buf->num_txqs = 1; err = ice_vsi_cfg_txq(vsi, xdp_ring, qg_buf); if (err) - goto free_buf; + return err; ice_set_ring_xdp(xdp_ring); ice_tx_xsk_pool(vsi, q_idx); } err = ice_vsi_cfg_rxq(rx_ring); if (err) - goto free_buf; + return err; ice_qvec_cfg_msix(vsi, q_vector); err = ice_vsi_ctrl_one_rx_ring(vsi, true, q_idx, true); if (err) - goto free_buf; + return err; clear_bit(ICE_CFG_BUSY, vsi->state); ice_qvec_toggle_napi(vsi, q_vector, true); ice_qvec_ena_irq(vsi, q_vector); netif_tx_start_queue(netdev_get_tx_queue(vsi->netdev, q_idx)); -free_buf: - kfree(qg_buf); - return err; + + return 0; } /**