lkml.org 
[lkml]   [2022]   [Sep]   [12]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
Subject[PATCH] net: sparx5: Fix return type of sparx5_port_xmit_impl
From
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 <error27@gmail.com>
Link: https://github.com/ClangBuiltLinux/linux/issues/1703
Cc: llvm@lists.linux.dev
Signed-off-by: Nathan Huckleberry <nhuck@google.com>
---
drivers/net/ethernet/microchip/sparx5/sparx5_packet.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/microchip/sparx5/sparx5_packet.c b/drivers/net/ethernet/microchip/sparx5/sparx5_packet.c
index 21844beba72d..83c16ca5b30f 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);
--
2.37.2.789.g6183377224-goog
\
 
 \ /
  Last update: 2022-09-12 23:45    [W:0.128 / U:0.348 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site