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net: fix build error in devmap helper calls 

Initial patches missed case with CONFIG_BPF_SYSCALL not set.

Fixes: 11393cc9b9 ("xdp: Add batching support to redirect map")
Fixes: 97f91a7cf0 ("bpf: add bpf_redirect_map helper routine")
Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
John Fastabend 2017-07-17 21:56:48 -07:00 committed by David S. Miller
parent 95b80bf3db
commit 46f55cffa4
1 changed files with 20 additions and 5 deletions
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25
include/linux/bpf.h
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@ -318,6 +318,12 @@ static inline void bpf_long_memcpy(void *dst, const void *src, u32 size)
/* verify correctness of eBPF program */
int bpf_check(struct bpf_prog **fp, union bpf_attr *attr);
/* Map specifics */
struct net_device *__dev_map_lookup_elem(struct bpf_map *map, u32 key);
void __dev_map_insert_ctx(struct bpf_map *map, u32 index);
void __dev_map_flush(struct bpf_map *map);
#else
static inline struct bpf_prog *bpf_prog_get(u32 ufd)
{
@ -356,6 +362,20 @@ static inline int __bpf_prog_charge(struct user_struct *user, u32 pages)
static inline void __bpf_prog_uncharge(struct user_struct *user, u32 pages)
{
}
static inline struct net_device *__dev_map_lookup_elem(struct bpf_map *map,
u32 key)
{
return NULL;
}
static inline void __dev_map_insert_ctx(struct bpf_map *map, u32 index)
{
}
static inline void __dev_map_flush(struct bpf_map *map)
{
}
#endif /* CONFIG_BPF_SYSCALL */
/* verifier prototypes for helper functions called from eBPF programs */
@ -379,9 +399,4 @@ extern const struct bpf_func_proto bpf_get_stackid_proto;
void bpf_user_rnd_init_once(void);
u64 bpf_user_rnd_u32(u64 r1, u64 r2, u64 r3, u64 r4, u64 r5);
/* Map specifics */
struct net_device *__dev_map_lookup_elem(struct bpf_map *map, u32 key);
void __dev_map_insert_ctx(struct bpf_map *map, u32 index);
void __dev_map_flush(struct bpf_map *map);
#endif /* _LINUX_BPF_H */