net-veth: Add type safety to veth_xdp_to_ptr() and veth_ptr_to_xdp()
This reduces likelihood of incorrect use.
Test: builds
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20200819020027.4072288-1-zenczykowski@gmail.com
diff --git a/drivers/net/veth.c b/drivers/net/veth.c
index e56cd56..b80cbff 100644
--- a/drivers/net/veth.c
+++ b/drivers/net/veth.c
@@ -234,14 +234,14 @@ static bool veth_is_xdp_frame(void *ptr)
return (unsigned long)ptr & VETH_XDP_FLAG;
}
-static void *veth_ptr_to_xdp(void *ptr)
+static struct xdp_frame *veth_ptr_to_xdp(void *ptr)
{
return (void *)((unsigned long)ptr & ~VETH_XDP_FLAG);
}
-static void *veth_xdp_to_ptr(void *ptr)
+static void *veth_xdp_to_ptr(struct xdp_frame *xdp)
{
- return (void *)((unsigned long)ptr | VETH_XDP_FLAG);
+ return (void *)((unsigned long)xdp | VETH_XDP_FLAG);
}
static void veth_ptr_free(void *ptr)