[RFC v3 02/22] bpf: Move u64_to_ptr() to BPF headers and inline it
From: Mickaël Salaün <mic@digikod.net>
Date: 2016-09-14 07:26:01
Also in:
cgroups, linux-api, lkml
Subsystem:
bpf [core], bpf [general] (safe dynamic programs and tools), the rest · Maintainers:
Alexei Starovoitov, Daniel Borkmann, Andrii Nakryiko, Eduard Zingerman, Kumar Kartikeya Dwivedi, Linus Torvalds
This helper will be useful for arraymap (next commit). Signed-off-by: Mickaël Salaün <mic@digikod.net> Cc: Alexei Starovoitov <ast@kernel.org> Cc: David S. Miller <davem@davemloft.net> Cc: Daniel Borkmann <daniel@iogearbox.net> --- include/linux/bpf.h | 6 ++++++ kernel/bpf/syscall.c | 6 ------ 2 files changed, 6 insertions(+), 6 deletions(-)
diff --git a/include/linux/bpf.h b/include/linux/bpf.h
index 9a904f63f8c1..fa9a988400d9 100644
--- a/include/linux/bpf.h
+++ b/include/linux/bpf.h@@ -274,6 +274,12 @@ 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); + +/* helper to convert user pointers passed inside __aligned_u64 fields */ +static inline void __user *u64_to_ptr(__u64 val) +{ + return (void __user *) (unsigned long) val; +} #else static inline void bpf_register_prog_type(struct bpf_prog_type_list *tl) {
diff --git a/kernel/bpf/syscall.c b/kernel/bpf/syscall.c
index 1a8592a082ce..776c752604b0 100644
--- a/kernel/bpf/syscall.c
+++ b/kernel/bpf/syscall.c@@ -252,12 +252,6 @@ struct bpf_map *bpf_map_get_with_uref(u32 ufd) return map; } -/* helper to convert user pointers passed inside __aligned_u64 fields */ -static void __user *u64_to_ptr(__u64 val) -{ - return (void __user *) (unsigned long) val; -} - int __weak bpf_stackmap_copy(struct bpf_map *map, void *key, void *value) { return -ENOTSUPP;
--
2.9.3