Commit 5972ca94 authored by Nathan Huckleberry's avatar Nathan Huckleberry Committed by Jakub Kicinski

net: ethernet: ti: davinci_emac: Fix return type of emac_dev_xmit

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 emac_dev_xmit should be changed from int to
netdev_tx_t.
Reported-by: default avatarDan Carpenter <error27@gmail.com>
Link: https://github.com/ClangBuiltLinux/linux/issues/1703
Cc: llvm@lists.linux.dev
Signed-off-by: default avatarNathan Huckleberry <nhuck@google.com>
Reviewed-by: default avatarNathan Chancellor <nathan@kernel.org>
Link: https://lore.kernel.org/r/20220912195023.810319-1-nhuck@google.comSigned-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent 0191580b
......@@ -949,7 +949,7 @@ static void emac_tx_handler(void *token, int len, int status)
*
* Returns success(NETDEV_TX_OK) or error code (typically out of desc's)
*/
static int emac_dev_xmit(struct sk_buff *skb, struct net_device *ndev)
static netdev_tx_t emac_dev_xmit(struct sk_buff *skb, struct net_device *ndev)
{
struct device *emac_dev = &ndev->dev;
int ret_code;
......
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