From: Nathan Huckleberry Date: Mon, 12 Sep 2022 21:44:55 +0000 (-0700) Subject: net: wwan: iosm: Fix return type of ipc_wwan_link_transmit X-Git-Tag: v6.1-rc5~319^2~186 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=0c9441c430104dcf2cd066aae74dbeefb9f9e1bf;p=platform%2Fkernel%2Flinux-starfive.git net: wwan: iosm: Fix return type of ipc_wwan_link_transmit 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 ipc_wwan_link_transmit should be changed from int to netdev_tx_t. Reported-by: Dan Carpenter Link: https://github.com/ClangBuiltLinux/linux/issues/1703 Cc: llvm@lists.linux.dev Signed-off-by: Nathan Huckleberry Acked-by: Sergey Ryazanov Link: https://lore.kernel.org/r/20220912214455.929028-1-nhuck@google.com Signed-off-by: Jakub Kicinski --- diff --git a/drivers/net/wwan/iosm/iosm_ipc_wwan.c b/drivers/net/wwan/iosm/iosm_ipc_wwan.c index 2715114..03757ad 100644 --- a/drivers/net/wwan/iosm/iosm_ipc_wwan.c +++ b/drivers/net/wwan/iosm/iosm_ipc_wwan.c @@ -103,8 +103,8 @@ static int ipc_wwan_link_stop(struct net_device *netdev) } /* Transmit a packet */ -static int ipc_wwan_link_transmit(struct sk_buff *skb, - struct net_device *netdev) +static netdev_tx_t ipc_wwan_link_transmit(struct sk_buff *skb, + struct net_device *netdev) { struct iosm_netdev_priv *priv = wwan_netdev_drvpriv(netdev); struct iosm_wwan *ipc_wwan = priv->ipc_wwan;