From: Nathan Huckleberry Date: Thu, 29 Sep 2022 18:19:47 +0000 (-0700) Subject: net: sparx5: Fix return type of sparx5_port_xmit_impl X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=73ea735073599430818e89b8901452287a15a718;p=linux.git net: sparx5: Fix return type of sparx5_port_xmit_impl 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 sparx5_port_xmit_impl 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 Signed-off-by: David S. Miller --- diff --git a/drivers/net/ethernet/microchip/sparx5/sparx5_main.h b/drivers/net/ethernet/microchip/sparx5/sparx5_main.h index b197129044b52..c9a77a14d3d79 100644 --- a/drivers/net/ethernet/microchip/sparx5/sparx5_main.h +++ b/drivers/net/ethernet/microchip/sparx5/sparx5_main.h @@ -291,7 +291,7 @@ struct frame_info { void sparx5_xtr_flush(struct sparx5 *sparx5, u8 grp); void sparx5_ifh_parse(u32 *ifh, struct frame_info *info); irqreturn_t sparx5_xtr_handler(int irq, void *_priv); -int sparx5_port_xmit_impl(struct sk_buff *skb, struct net_device *dev); +netdev_tx_t sparx5_port_xmit_impl(struct sk_buff *skb, struct net_device *dev); int sparx5_manual_injection_mode(struct sparx5 *sparx5); void sparx5_port_inj_timer_setup(struct sparx5_port *port); diff --git a/drivers/net/ethernet/microchip/sparx5/sparx5_packet.c b/drivers/net/ethernet/microchip/sparx5/sparx5_packet.c index 21844beba72df..83c16ca5b30f0 100644 --- a/drivers/net/ethernet/microchip/sparx5/sparx5_packet.c +++ b/drivers/net/ethernet/microchip/sparx5/sparx5_packet.c @@ -222,13 +222,13 @@ static int sparx5_inject(struct sparx5 *sparx5, return NETDEV_TX_OK; } -int sparx5_port_xmit_impl(struct sk_buff *skb, struct net_device *dev) +netdev_tx_t sparx5_port_xmit_impl(struct sk_buff *skb, struct net_device *dev) { struct net_device_stats *stats = &dev->stats; struct sparx5_port *port = netdev_priv(dev); struct sparx5 *sparx5 = port->sparx5; u32 ifh[IFH_LEN]; - int ret; + netdev_tx_t ret; memset(ifh, 0, IFH_LEN * 4); sparx5_set_port_ifh(ifh, port->portno);