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| author |   Maciej Żenczykowski <maze@google.com> | 2020-08-18 18:07:09 -0700 |
|---|---|---|
| committer |   Alexei Starovoitov <ast@kernel.org> | 2020-08-19 14:02:49 -0700 |
| commit | b558b6c24068d87ffcd95dad3bf0d9bd2ac290e9 (patch) | |
| tree | 3087016afa79360897607b3ac0c61f103cfadd98 /drivers/net/tun.c | |
| parent | Merge branch 'libbpf-minimize-feature-detection' (diff) | |
| download | linux-dev-b558b6c24068d87ffcd95dad3bf0d9bd2ac290e9.tar.xz linux-dev-b558b6c24068d87ffcd95dad3bf0d9bd2ac290e9.zip | |
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 <maze@google.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20200819010710.3959310-1-zenczykowski@gmail.com
Diffstat (limited to 'drivers/net/tun.c')
| -rw-r--r-- | drivers/net/tun.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/net/tun.c b/drivers/net/tun.c index 3c11a77f5709..5dd7f353eeef 100644 --- a/drivers/net/tun.c +++ b/drivers/net/tun.c @@ -225,13 +225,13 @@ bool tun_is_xdp_frame(void *ptr) } EXPORT_SYMBOL(tun_is_xdp_frame); -void *tun_xdp_to_ptr(void *ptr) +void *tun_xdp_to_ptr(struct xdp_frame *xdp) { - return (void *)((unsigned long)ptr | TUN_XDP_FLAG); + return (void *)((unsigned long)xdp | TUN_XDP_FLAG); } EXPORT_SYMBOL(tun_xdp_to_ptr); -void *tun_ptr_to_xdp(void *ptr) +struct xdp_frame *tun_ptr_to_xdp(void *ptr) { return (void *)((unsigned long)ptr & ~TUN_XDP_FLAG); } |