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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
This commit is contained in:
Maciej Żenczykowski 2020-08-18 19:00:27 -07:00 committed by Alexei Starovoitov
parent 596b5ef458
commit defcffeb51
1 changed files with 3 additions and 3 deletions
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6
drivers/net/veth.c
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@ -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)