On Tue, Apr 14, 2020 at 9:20 AM Toke Høiland-Jørgensen <toke@xxxxxxxxxx> wrote:
>
> The 'old_fd' parameter used for atomic replacement of XDP programs is
> supposed to be an FD, but was left as a u32 from an earlier iteration of
> the patch that added it. It was converted to an int when read, so things
> worked correctly even with negative values, but better change the
> definition to correctly reflect the intention.
>
> Fixes: bd5ca3ef93cd ("libbpf: Add function to set link XDP fd while specifying old program")
> Reported-by: David Ahern <dsahern@xxxxxxxxx>
> Signed-off-by: Toke Høiland-Jørgensen <toke@xxxxxxxxxx>
Acked-by: Song Liu <songliubraving@xxxxxx>
