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ebpf: move CONFIG_BPF_SYSCALL-only function declarations 

Masami noted that it would be better to hide the remaining CONFIG_BPF_SYSCALL-only
function declarations within the BPF header ifdef, w/o else path dummy alternatives
since these functions are not supposed to have a user outside of CONFIG_BPF_SYSCALL.

Suggested-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Reference: http://article.gmane.org/gmane.linux.kernel.api/8658
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Daniel Borkmann 2015-03-02 15:21:55 +01:00 committed by David S. Miller
parent 77f0379fa8
commit 61e021f3b8
1 changed files with 9 additions and 9 deletions
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18
include/linux/bpf.h
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@ -42,10 +42,6 @@ struct bpf_map_type_list {
enum bpf_map_type type;
};
void bpf_register_map_type(struct bpf_map_type_list *tl);
void bpf_map_put(struct bpf_map *map);
struct bpf_map *bpf_map_get(struct fd f);
/* function argument constraints */
enum bpf_arg_type {
ARG_ANYTHING = 0, /* any argument is ok */
@ -126,9 +122,16 @@ struct bpf_prog_aux {
#ifdef CONFIG_BPF_SYSCALL
void bpf_register_prog_type(struct bpf_prog_type_list *tl);
void bpf_register_map_type(struct bpf_map_type_list *tl);
void bpf_prog_put(struct bpf_prog *prog);
struct bpf_prog *bpf_prog_get(u32 ufd);
void bpf_prog_put(struct bpf_prog *prog);
struct bpf_map *bpf_map_get(struct fd f);
void bpf_map_put(struct bpf_map *map);
/* verify correctness of eBPF program */
int bpf_check(struct bpf_prog *fp, union bpf_attr *attr);
#else
static inline void bpf_register_prog_type(struct bpf_prog_type_list *tl)
{
@ -142,10 +145,7 @@ static inline struct bpf_prog *bpf_prog_get(u32 ufd)
static inline void bpf_prog_put(struct bpf_prog *prog)
{
}
#endif
/* verify correctness of eBPF program */
int bpf_check(struct bpf_prog *fp, union bpf_attr *attr);
#endif /* CONFIG_BPF_SYSCALL */
/* verifier prototypes for helper functions called from eBPF programs */
extern const struct bpf_func_proto bpf_map_lookup_elem_proto;