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Commit 46f55cff authored by John Fastabend's avatar John Fastabend Committed by David S. Miller
Browse files

net: fix build error in devmap helper calls 



Initial patches missed case with CONFIG_BPF_SYSCALL not set.

Fixes: 11393cc9 ("xdp: Add batching support to redirect map")
Fixes: 97f91a7c ("bpf: add bpf_redirect_map helper routine")
Signed-off-by: default avatarJohn Fastabend <john.fastabend@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 95b80bf3

include/linux/bpf.h

+20 −5
Original line number Diff line number Diff line
@@ -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 */