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From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Nathan Huckleberry <nhuck@google.com>,
	Dan Carpenter <error27@gmail.com>,
	llvm@lists.linux.dev, Nathan Chancellor <nathan@kernel.org>,
	Jakub Kicinski <kuba@kernel.org>, Sasha Levin <sashal@kernel.org>,
	davem@davemloft.net, edumazet@google.com, pabeni@redhat.com,
	ndesaulniers@google.com, geoff@infradead.org, mw@semihalf.com,
	dmitry.torokhov@gmail.com, wsa+renesas@sang-engineering.com,
	netdev@vger.kernel.org
Subject: [PATCH AUTOSEL 4.19 12/25] net: davicom: Fix return type of dm9000_start_xmit
Date: Sun,  9 Oct 2022 18:24:17 -0400	[thread overview]
Message-ID: <20221009222436.1219411-12-sashal@kernel.org> (raw)
In-Reply-To: <20221009222436.1219411-1-sashal@kernel.org>

From: Nathan Huckleberry <nhuck@google.com>

[ Upstream commit 0191580b000d50089a0b351f7cdbec4866e3d0d2 ]

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 dm9000_start_xmit should be changed from int to
netdev_tx_t.

Reported-by: Dan Carpenter <error27@gmail.com>
Link: https://github.com/ClangBuiltLinux/linux/issues/1703
Cc: llvm@lists.linux.dev
Signed-off-by: Nathan Huckleberry <nhuck@google.com>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Link: https://lore.kernel.org/r/20220912194722.809525-1-nhuck@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/davicom/dm9000.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/davicom/dm9000.c b/drivers/net/ethernet/davicom/dm9000.c
index 8b07890b0b23..833e27ce4a57 100644
--- a/drivers/net/ethernet/davicom/dm9000.c
+++ b/drivers/net/ethernet/davicom/dm9000.c
@@ -1025,7 +1025,7 @@ static void dm9000_send_packet(struct net_device *dev,
  *  Hardware start transmission.
  *  Send a packet to media from the upper layer.
  */
-static int
+static netdev_tx_t
 dm9000_start_xmit(struct sk_buff *skb, struct net_device *dev)
 {
 	unsigned long flags;
-- 
2.35.1


  parent reply	other threads:[~2022-10-09 22:25 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-10-09 22:24 [PATCH AUTOSEL 4.19 01/25] wifi: brcmfmac: fix invalid address access when enabling SCAN log level Sasha Levin
2022-10-09 22:24 ` [PATCH AUTOSEL 4.19 02/25] openvswitch: Fix double reporting of drops in dropwatch Sasha Levin
2022-10-09 22:24 ` [PATCH AUTOSEL 4.19 03/25] openvswitch: Fix overreporting " Sasha Levin
2022-10-09 22:24 ` [PATCH AUTOSEL 4.19 04/25] tcp: annotate data-race around tcp_md5sig_pool_populated Sasha Levin
2022-10-09 22:24 ` [PATCH AUTOSEL 4.19 05/25] wifi: ath9k: avoid uninit memory read in ath9k_htc_rx_msg() Sasha Levin
2022-10-09 22:24 ` [PATCH AUTOSEL 4.19 06/25] xfrm: Update ipcomp_scratches with NULL when freed Sasha Levin
2022-10-09 22:24 ` [PATCH AUTOSEL 4.19 07/25] net: xscale: Fix return type for implementation of ndo_start_xmit Sasha Levin
2022-10-09 22:24 ` [PATCH AUTOSEL 4.19 08/25] net: lantiq_etop: " Sasha Levin
2022-10-09 22:24 ` [PATCH AUTOSEL 4.19 09/25] net: ftmac100: fix endianness-related issues from 'sparse' Sasha Levin
2022-10-09 22:24 ` [PATCH AUTOSEL 4.19 10/25] wifi: brcmfmac: fix use-after-free bug in brcmf_netdev_start_xmit() Sasha Levin
2022-10-09 22:24 ` [PATCH AUTOSEL 4.19 11/25] Bluetooth: L2CAP: initialize delayed works at l2cap_chan_create() Sasha Levin
2022-10-09 22:24 ` Sasha Levin [this message]
2022-10-09 22:24 ` [PATCH AUTOSEL 4.19 13/25] net: ethernet: ti: davinci_emac: Fix return type of emac_dev_xmit Sasha Levin
2022-10-09 22:24 ` [PATCH AUTOSEL 4.19 14/25] net: korina: Fix return type of korina_send_packet Sasha Levin
2022-10-09 22:24 ` [PATCH AUTOSEL 4.19 15/25] Bluetooth: hci_sysfs: Fix attempting to call device_add multiple times Sasha Levin
2022-10-09 22:24 ` [PATCH AUTOSEL 4.19 16/25] wifi: ath10k: reset pointer after memory free to avoid potential use-after-free Sasha Levin
2022-10-09 22:24   ` Sasha Levin
2022-10-18  9:53   ` Pavel Machek
2022-10-18  9:53     ` Pavel Machek
2022-10-18 11:10     ` Greg KH
2022-10-18 11:10       ` Greg KH
2022-10-09 22:24 ` [PATCH AUTOSEL 4.19 17/25] can: bcm: check the result of can_send() in bcm_can_tx() Sasha Levin
2022-10-09 22:24 ` [PATCH AUTOSEL 4.19 18/25] wifi: rt2x00: don't run Rt5592 IQ calibration on MT7620 Sasha Levin
2022-10-09 22:24 ` [PATCH AUTOSEL 4.19 19/25] wifi: rt2x00: set correct TX_SW_CFG1 MAC register for MT7620 Sasha Levin
2022-10-09 22:24 ` [PATCH AUTOSEL 4.19 20/25] wifi: rt2x00: set SoC wmac clock register Sasha Levin
2022-10-09 22:24 ` [PATCH AUTOSEL 4.19 21/25] wifi: rt2x00: correctly set BBP register 86 for MT7620 Sasha Levin
2022-10-09 22:24 ` [PATCH AUTOSEL 4.19 22/25] net: If sock is dead don't access sock's sk_wq in sk_stream_wait_memory Sasha Levin
2022-10-09 22:24 ` [PATCH AUTOSEL 4.19 23/25] Bluetooth: L2CAP: Fix user-after-free Sasha Levin
2022-10-09 22:24 ` [PATCH AUTOSEL 4.19 24/25] libbpf: Fix overrun in netlink attribute iteration Sasha Levin
2022-10-09 22:24 ` [PATCH AUTOSEL 4.19 25/25] r8152: Rate limit overflow messages Sasha Levin

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