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authorYonghong Song <yhs@fb.com>2020-07-20 09:34:02 -0700
committerAlexei Starovoitov <ast@kernel.org>2020-07-21 13:26:26 -0700
commitfce557bcef119a1bc5ab3cb02678cf454bcaf424 (patch)
treed4ddf93d2e8d61a58086d8985d2f84dcd4387b34 /net/core
parentbpf: Add BTF_ID_LIST_GLOBAL in btf_ids.h (diff)
downloadwireguard-linux-fce557bcef119a1bc5ab3cb02678cf454bcaf424.tar.xz
wireguard-linux-fce557bcef119a1bc5ab3cb02678cf454bcaf424.zip
bpf: Make btf_sock_ids global
tcp and udp bpf_iter can reuse some socket ids in btf_sock_ids, so make it global. I put the extern definition in btf_ids.h as a central place so it can be easily discovered by developers. Signed-off-by: Yonghong Song <yhs@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20200720163402.1393427-1-yhs@fb.com
Diffstat (limited to 'net/core')
-rw-r--r--net/core/filter.c30
1 files changed, 2 insertions, 28 deletions
diff --git a/net/core/filter.c b/net/core/filter.c
index 5a65fb4b95ff..654c346b7d91 100644
--- a/net/core/filter.c
+++ b/net/core/filter.c
@@ -9421,39 +9421,13 @@ void bpf_prog_change_xdp(struct bpf_prog *prev_prog, struct bpf_prog *prog)
bpf_dispatcher_change_prog(BPF_DISPATCHER_PTR(xdp), prev_prog, prog);
}
-/* Define a list of socket types which can be the argument for
- * skc_to_*_sock() helpers. All these sockets should have
- * sock_common as the first argument in its memory layout.
- */
-#define BTF_SOCK_TYPE_xxx \
- BTF_SOCK_TYPE(BTF_SOCK_TYPE_INET, inet_sock) \
- BTF_SOCK_TYPE(BTF_SOCK_TYPE_INET_CONN, inet_connection_sock) \
- BTF_SOCK_TYPE(BTF_SOCK_TYPE_INET_REQ, inet_request_sock) \
- BTF_SOCK_TYPE(BTF_SOCK_TYPE_INET_TW, inet_timewait_sock) \
- BTF_SOCK_TYPE(BTF_SOCK_TYPE_REQ, request_sock) \
- BTF_SOCK_TYPE(BTF_SOCK_TYPE_SOCK, sock) \
- BTF_SOCK_TYPE(BTF_SOCK_TYPE_SOCK_COMMON, sock_common) \
- BTF_SOCK_TYPE(BTF_SOCK_TYPE_TCP, tcp_sock) \
- BTF_SOCK_TYPE(BTF_SOCK_TYPE_TCP_REQ, tcp_request_sock) \
- BTF_SOCK_TYPE(BTF_SOCK_TYPE_TCP_TW, tcp_timewait_sock) \
- BTF_SOCK_TYPE(BTF_SOCK_TYPE_TCP6, tcp6_sock) \
- BTF_SOCK_TYPE(BTF_SOCK_TYPE_UDP, udp_sock) \
- BTF_SOCK_TYPE(BTF_SOCK_TYPE_UDP6, udp6_sock)
-
-enum {
-#define BTF_SOCK_TYPE(name, str) name,
-BTF_SOCK_TYPE_xxx
-#undef BTF_SOCK_TYPE
-MAX_BTF_SOCK_TYPE,
-};
-
#ifdef CONFIG_DEBUG_INFO_BTF
-BTF_ID_LIST(btf_sock_ids)
+BTF_ID_LIST_GLOBAL(btf_sock_ids)
#define BTF_SOCK_TYPE(name, type) BTF_ID(struct, type)
BTF_SOCK_TYPE_xxx
#undef BTF_SOCK_TYPE
#else
-static u32 btf_sock_ids[MAX_BTF_SOCK_TYPE];
+u32 btf_sock_ids[MAX_BTF_SOCK_TYPE];
#endif
static bool check_arg_btf_id(u32 btf_id, u32 arg)