From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A6BB47B; Thu, 13 Oct 2022 00:26:05 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5C904C433D7; Thu, 13 Oct 2022 00:26:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1665620765; bh=aUtu/lpREqGhiOct7mEgMbHuIL7L4i+oj4RQj4p8H/I=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=oA17L6youwzNoZ/mVipIYjGOeUFjmq6+oAyJMw1tT/h6OLhbwnArnjPjMsA254B3/ dnVDbHSSiV/05hsmAUSp9ksB8TQepa2HeF6/NXN66zPGdzK6rvtBhm6L55IvL0scGE MQrw7z89raUUFZG4iv4+F/ww++VCxRnKepmt6rK8qQAoKg4oLRUkoB/oh/hqdq71wA y2vlt5b2OcY7UX80RLaAgBgRBx3+5plBBUEcff46VBUUPQx2JLOsGo/qoixyJO98f6 T+ntwt8S7I6yHEhstrLGrY4y4UkD3y+dwFwYH16Gs+Zlj58KJ4uB5HYmW93ak0aBZx sHJV4GASSIzJw== 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 5.4 21/27] staging: octeon: Fix return type of cvm_oct_xmit and cvm_oct_xmit_pow Date: Wed, 12 Oct 2022 20:24:53 -0400 Message-Id: <20221013002501.1895204-21-sashal@kernel.org> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20221013002501.1895204-1-sashal@kernel.org> References: <20221013002501.1895204-1-sashal@kernel.org> Precedence: bulk X-Mailing-List: linux-staging@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit 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 fe6e1ae73460..15568bf2ca56 100644 --- a/drivers/staging/octeon/ethernet-tx.c +++ b/drivers/staging/octeon/ethernet-tx.c @@ -125,7 +125,7 @@ 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; @@ -507,7 +507,7 @@ 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