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 1FF2BC4332F for ; Thu, 13 Oct 2022 01:14:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230281AbiJMBOr (ORCPT ); Wed, 12 Oct 2022 21:14:47 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51986 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231262AbiJMBNO (ORCPT ); Wed, 12 Oct 2022 21:13:14 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E2754D03A7; Wed, 12 Oct 2022 18:12:12 -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 ams.source.kernel.org (Postfix) with ESMTPS id C1BAAB81CC3; Thu, 13 Oct 2022 00:27:02 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5D262C433C1; Thu, 13 Oct 2022 00:27:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1665620821; bh=wtNFPWuHzl5i0crhNM035CtuRFKFiqtjuTALCkAfSNs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=KEme3tVkd0h/o/WO/yy6oSfdRLdlJ+BpEHZkz7uqJegJ/bTb+amf1gJH17d2J5QxJ mtwGtprB/JWiySm6f5pOpcOUulPbrJO87kddZQHfUWjoqTvesHAUac14hSJej+oFBb 0CF0Dt/iPGCd9pFw8DcvF8rXuNR7UufPX4wJbTdTk+/0D9H4v8ErwlFsxZIcLV5eQa xG6hi8Ixmkh14RryoBpZYy/wZq1CSdvgcwd7kFe+h3Ryg60phcB9cffhTSc/Pob1T5 s7h0VY4Pa11/6xPus8iTVd6+UkOhzAYWE6G3E+YoMBmeAlkdsbryT0/ASHASdjQ8OS hvqJyz3jY/x1Q== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Nathan Huckleberry , llvm@lists.linux.dev, Dan Carpenter , Nathan Chancellor , Arnd Bergmann , Greg Kroah-Hartman , Sasha Levin , ndesaulniers@google.com, linux-staging@lists.linux.dev Subject: [PATCH AUTOSEL 4.19 15/19] staging: octeon: Fix return type of cvm_oct_xmit and cvm_oct_xmit_pow Date: Wed, 12 Oct 2022 20:26:14 -0400 Message-Id: <20221013002623.1895576-15-sashal@kernel.org> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20221013002623.1895576-1-sashal@kernel.org> References: <20221013002623.1895576-1-sashal@kernel.org> 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: Nathan Huckleberry [ Upstream commit b77599043f00fce9253d0f22522c5d5b521555ce ] The ndo_start_xmit field in net_device_ops is expected to be of type netdev_tx_t (*ndo_start_xmit)(struct sk_buff *skb, struct net_device *dev). The mismatched return type breaks forward edge kCFI since the underlying function definition does not match the function hook definition. The return type of cvm_oct_xmit and cvm_oct_xmit_pow should be changed from int to netdev_tx_t. Link: https://github.com/ClangBuiltLinux/linux/issues/1703 Cc: llvm@lists.linux.dev Reported-by: Dan Carpenter Reviewed-by: Nathan Chancellor Acked-by: Arnd Bergmann Signed-off-by: Nathan Huckleberry Link: https://lore.kernel.org/r/20220914211057.423617-1-nhuck@google.com Signed-off-by: Greg Kroah-Hartman Signed-off-by: Sasha Levin --- drivers/staging/octeon/ethernet-tx.c | 4 ++-- drivers/staging/octeon/ethernet-tx.h | 4 ++-- 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/staging/octeon/ethernet-tx.c b/drivers/staging/octeon/ethernet-tx.c index df3441b815bb..5df115ef4463 100644 --- a/drivers/staging/octeon/ethernet-tx.c +++ b/drivers/staging/octeon/ethernet-tx.c @@ -135,7 +135,7 @@ static void cvm_oct_free_tx_skbs(struct net_device *dev) * * Returns Always returns NETDEV_TX_OK */ -int cvm_oct_xmit(struct sk_buff *skb, struct net_device *dev) +netdev_tx_t cvm_oct_xmit(struct sk_buff *skb, struct net_device *dev) { cvmx_pko_command_word0_t pko_command; union cvmx_buf_ptr hw_buffer; @@ -518,7 +518,7 @@ int cvm_oct_xmit(struct sk_buff *skb, struct net_device *dev) * Returns Always returns zero */ -int cvm_oct_xmit_pow(struct sk_buff *skb, struct net_device *dev) +netdev_tx_t cvm_oct_xmit_pow(struct sk_buff *skb, struct net_device *dev) { struct octeon_ethernet *priv = netdev_priv(dev); void *packet_buffer; diff --git a/drivers/staging/octeon/ethernet-tx.h b/drivers/staging/octeon/ethernet-tx.h index 78936e9b33b0..6c524668f65a 100644 --- a/drivers/staging/octeon/ethernet-tx.h +++ b/drivers/staging/octeon/ethernet-tx.h @@ -5,8 +5,8 @@ * Copyright (c) 2003-2007 Cavium Networks */ -int cvm_oct_xmit(struct sk_buff *skb, struct net_device *dev); -int cvm_oct_xmit_pow(struct sk_buff *skb, struct net_device *dev); +netdev_tx_t cvm_oct_xmit(struct sk_buff *skb, struct net_device *dev); +netdev_tx_t cvm_oct_xmit_pow(struct sk_buff *skb, struct net_device *dev); int cvm_oct_transmit_qos(struct net_device *dev, void *work_queue_entry, int do_free, int qos); void cvm_oct_tx_initialize(void); -- 2.35.1