Re: [PATCH AUTOSEL 4.14 11/13] staging: rtl8192u: Fix return type of ieee80211_xmit
From: Greg Kroah-Hartman
Date: Thu Oct 13 2022 - 01:53:28 EST
On Wed, Oct 12, 2022 at 08:27:10PM -0400, Sasha Levin wrote:
> From: Nathan Huckleberry <nhuck@xxxxxxxxxx>
>
> [ Upstream commit 2851349ac351010a2649e0ff86a1e3d68fe5d683 ]
>
> 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.
Again, not needed in any stable branches, thanks.
greg k-h