From patchwork Mon Sep 4 12:31:04 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Przemek Kitszel X-Patchwork-Id: 13373806 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 8FCF9C83F3E for ; Mon, 4 Sep 2023 12:34:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1352795AbjIDMe0 (ORCPT ); Mon, 4 Sep 2023 08:34:26 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53460 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S241217AbjIDMe0 (ORCPT ); Mon, 4 Sep 2023 08:34:26 -0400 Received: from mgamail.intel.com (mgamail.intel.com [192.55.52.93]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6174F1AD; Mon, 4 Sep 2023 05:34:23 -0700 (PDT) DKIM-Signature: v=1; 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d="scan'208";a="740749771" Received: from irvmail002.ir.intel.com ([10.43.11.120]) by orsmga002.jf.intel.com with ESMTP; 04 Sep 2023 05:34:18 -0700 Received: from pelor.igk.intel.com (pelor.igk.intel.com [10.123.220.13]) by irvmail002.ir.intel.com (Postfix) with ESMTP id 1266735430; Mon, 4 Sep 2023 13:34:17 +0100 (IST) From: Przemek Kitszel To: netdev@vger.kernel.org Cc: Kees Cook , Jacob Keller , intel-wired-lan@lists.osuosl.org, Alexander Lobakin , linux-hardening@vger.kernel.org, Steven Zou , Jakub Kicinski , Anthony Nguyen , David Laight , Przemek Kitszel Subject: [RFC net-next v4 4/7] ice: make use of DEFINE_FLEX() in ice_ddp.c Date: Mon, 4 Sep 2023 08:31:04 -0400 Message-Id: <20230904123107.116381-5-przemyslaw.kitszel@intel.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230904123107.116381-1-przemyslaw.kitszel@intel.com> References: <20230904123107.116381-1-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 constant-num-of-elems (4) flex array members of ice_ddp.c Signed-off-by: Przemek Kitszel --- add/remove: 4/0 grow/shrink: 0/1 up/down: 1195/-878 (317) --- drivers/net/ethernet/intel/ice/ice_ddp.c | 39 +++++++----------------- 1 file changed, 11 insertions(+), 28 deletions(-) diff --git a/drivers/net/ethernet/intel/ice/ice_ddp.c b/drivers/net/ethernet/intel/ice/ice_ddp.c index b27ec93638b6..78ed909745fe 100644 --- a/drivers/net/ethernet/intel/ice/ice_ddp.c +++ b/drivers/net/ethernet/intel/ice/ice_ddp.c @@ -1560,21 +1560,14 @@ static enum ice_ddp_state ice_init_pkg_info(struct ice_hw *hw, */ static enum ice_ddp_state ice_get_pkg_info(struct ice_hw *hw) { - enum ice_ddp_state state = ICE_DDP_PKG_SUCCESS; - struct ice_aqc_get_pkg_info_resp *pkg_info; - u16 size; + DEFINE_FLEX(struct ice_aqc_get_pkg_info_resp, pkg_info, pkg_info, + ICE_PKG_CNT); + u16 size = __struct_size(pkg_info); u32 i; - size = struct_size(pkg_info, pkg_info, ICE_PKG_CNT); - pkg_info = kzalloc(size, GFP_KERNEL); - if (!pkg_info) + if (ice_aq_get_pkg_info_list(hw, pkg_info, size, NULL)) return ICE_DDP_PKG_ERR; - if (ice_aq_get_pkg_info_list(hw, pkg_info, size, NULL)) { - state = ICE_DDP_PKG_ERR; - goto init_pkg_free_alloc; - } - for (i = 0; i < le32_to_cpu(pkg_info->count); i++) { #define ICE_PKG_FLAG_COUNT 4 char flags[ICE_PKG_FLAG_COUNT + 1] = { 0 }; @@ -1604,10 +1597,7 @@ static enum ice_ddp_state ice_get_pkg_info(struct ice_hw *hw) pkg_info->pkg_info[i].name, flags); } -init_pkg_free_alloc: - kfree(pkg_info); - - return state; + return ICE_DDP_PKG_SUCCESS; } /** @@ -1622,9 +1612,10 @@ static enum ice_ddp_state ice_chk_pkg_compat(struct ice_hw *hw, struct ice_pkg_hdr *ospkg, struct ice_seg **seg) { - struct ice_aqc_get_pkg_info_resp *pkg; + DEFINE_FLEX(struct ice_aqc_get_pkg_info_resp, pkg, pkg_info, + ICE_PKG_CNT); + u16 size = __struct_size(pkg); enum ice_ddp_state state; - u16 size; u32 i; /* Check package version compatibility */ @@ -1643,15 +1634,8 @@ static enum ice_ddp_state ice_chk_pkg_compat(struct ice_hw *hw, } /* Check if FW is compatible with the OS package */ - size = struct_size(pkg, pkg_info, ICE_PKG_CNT); - pkg = kzalloc(size, GFP_KERNEL); - if (!pkg) - return ICE_DDP_PKG_ERR; - - if (ice_aq_get_pkg_info_list(hw, pkg, size, NULL)) { - state = ICE_DDP_PKG_LOAD_ERROR; - goto fw_ddp_compat_free_alloc; - } + if (ice_aq_get_pkg_info_list(hw, pkg, size, NULL)) + return ICE_DDP_PKG_LOAD_ERROR; for (i = 0; i < le32_to_cpu(pkg->count); i++) { /* loop till we find the NVM package */ @@ -1668,8 +1652,7 @@ static enum ice_ddp_state ice_chk_pkg_compat(struct ice_hw *hw, /* done processing NVM package so break */ break; } -fw_ddp_compat_free_alloc: - kfree(pkg); + return state; }