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Diffstat (limited to 'include/linux/if_tun.h')
-rw-r--r--include/linux/if_tun.h16
1 files changed, 13 insertions, 3 deletions
diff --git a/include/linux/if_tun.h b/include/linux/if_tun.h
index 2a7660843444..043d442994b0 100644
--- a/include/linux/if_tun.h
+++ b/include/linux/if_tun.h
@@ -27,44 +27,54 @@ struct tun_xdp_hdr {
#if defined(CONFIG_TUN) || defined(CONFIG_TUN_MODULE)
struct socket *tun_get_socket(struct file *);
struct ptr_ring *tun_get_tx_ring(struct file *file);
+
static inline bool tun_is_xdp_frame(void *ptr)
{
- return (unsigned long)ptr & TUN_XDP_FLAG;
+ return (unsigned long)ptr & TUN_XDP_FLAG;
}
+
static inline void *tun_xdp_to_ptr(struct xdp_frame *xdp)
{
- return (void *)((unsigned long)xdp | TUN_XDP_FLAG);
+ return (void *)((unsigned long)xdp | TUN_XDP_FLAG);
}
+
static inline struct xdp_frame *tun_ptr_to_xdp(void *ptr)
{
- return (void *)((unsigned long)ptr & ~TUN_XDP_FLAG);
+ return (void *)((unsigned long)ptr & ~TUN_XDP_FLAG);
}
+
void tun_ptr_free(void *ptr);
#else
#include <linux/err.h>
#include <linux/errno.h>
struct file;
struct socket;
+
static inline struct socket *tun_get_socket(struct file *f)
{
return ERR_PTR(-EINVAL);
}
+
static inline struct ptr_ring *tun_get_tx_ring(struct file *f)
{
return ERR_PTR(-EINVAL);
}
+
static inline bool tun_is_xdp_frame(void *ptr)
{
return false;
}
+
static inline void *tun_xdp_to_ptr(struct xdp_frame *xdp)
{
return NULL;
}
+
static inline struct xdp_frame *tun_ptr_to_xdp(void *ptr)
{
return NULL;
}
+
static inline void tun_ptr_free(void *ptr)
{
}