net-tun: Add type safety to tun_xdp_to_ptr() and tun_ptr_to_xdp()
This reduces likelihood of incorrect use.
Test: builds
Signed-off-by: Maciej Żenczykowski <[email protected]>
Signed-off-by: Alexei Starovoitov <[email protected]>
Link: https://lore.kernel.org/bpf/[email protected]
diff --git a/include/linux/if_tun.h b/include/linux/if_tun.h
index 5bda8cf..6c37e1d 100644
--- a/include/linux/if_tun.h
+++ b/include/linux/if_tun.h
@@ -28,8 +28,8 @@ struct tun_xdp_hdr {
struct socket *tun_get_socket(struct file *);
struct ptr_ring *tun_get_tx_ring(struct file *file);
bool tun_is_xdp_frame(void *ptr);
-void *tun_xdp_to_ptr(void *ptr);
-void *tun_ptr_to_xdp(void *ptr);
+void *tun_xdp_to_ptr(struct xdp_frame *xdp);
+struct xdp_frame *tun_ptr_to_xdp(void *ptr);
void tun_ptr_free(void *ptr);
#else
#include <linux/err.h>
@@ -48,11 +48,11 @@ static inline bool tun_is_xdp_frame(void *ptr)
{
return false;
}
-static inline void *tun_xdp_to_ptr(void *ptr)
+static inline void *tun_xdp_to_ptr(struct xdp_frame *xdp)
{
return NULL;
}
-static inline void *tun_ptr_to_xdp(void *ptr)
+static inline struct xdp_frame *tun_ptr_to_xdp(void *ptr)
{
return NULL;
}
