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Date: Fri, 14 Sep 2018 15:11:46 +0800
From: kbuild test robot <lkp@...el.com>
To: Joe Stringer <joe@...d.net.nz>
Cc: kbuild-all@...org, daniel@...earbox.net, netdev@...r.kernel.org,
ast@...nel.org, john.fastabend@...il.com, tgraf@...g.ch,
kafai@...com, nitin.hande@...il.com, mauricio.vasquez@...ito.it
Subject: Re: [PATCH bpf-next 07/11] bpf: Add helper to retrieve socket in BPF
Hi Joe,
Thank you for the patch! Yet something to improve:
[auto build test ERROR on bpf-next/master]
url: https://github.com/0day-ci/linux/commits/Joe-Stringer/Add-socket-lookup-support/20180914-134632
base: https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git master
config: x86_64-randconfig-s0-09141346 (attached as .config)
compiler: gcc-6 (Debian 6.4.0-9) 6.4.0 20171026
reproduce:
# save the attached .config to linux build tree
make ARCH=x86_64
All error/warnings (new ones prefixed by >>):
net/core/filter.c: In function 'sk_lookup':
>> net/core/filter.c:4870:1: error: invalid storage class for function 'bpf_sk_lookup'
bpf_sk_lookup(struct sk_buff *skb, struct bpf_sock_tuple *tuple, u32 len,
^~~~~~~~~~~~~
>> net/core/filter.c:4869:1: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
static unsigned long
^~~~~~
In file included from include/net/sock.h:64:0,
from include/linux/sock_diag.h:8,
from net/core/filter.c:29:
>> include/linux/filter.h:432:6: error: invalid storage class for function '____bpf_sk_lookup_tcp'
u64 ____##name(__BPF_MAP(x, __BPF_DECL_ARGS, __BPF_V, __VA_ARGS__)); \
^
>> include/linux/filter.h:446:31: note: in expansion of macro 'BPF_CALL_x'
#define BPF_CALL_5(name, ...) BPF_CALL_x(5, name, __VA_ARGS__)
^~~~~~~~~~
>> net/core/filter.c:4896:1: note: in expansion of macro 'BPF_CALL_5'
BPF_CALL_5(bpf_sk_lookup_tcp, struct sk_buff *, skb,
^~~~~~~~~~
>> net/core/filter.c:4896:12: error: static declaration of 'bpf_sk_lookup_tcp' follows non-static declaration
BPF_CALL_5(bpf_sk_lookup_tcp, struct sk_buff *, skb,
^
include/linux/filter.h:434:6: note: in definition of macro 'BPF_CALL_x'
u64 name(__BPF_REG(x, __BPF_DECL_REGS, __BPF_N, __VA_ARGS__)) \
^~~~
>> net/core/filter.c:4896:1: note: in expansion of macro 'BPF_CALL_5'
BPF_CALL_5(bpf_sk_lookup_tcp, struct sk_buff *, skb,
^~~~~~~~~~
net/core/filter.c:4896:12: note: previous declaration of 'bpf_sk_lookup_tcp' was here
BPF_CALL_5(bpf_sk_lookup_tcp, struct sk_buff *, skb,
^
include/linux/filter.h:433:6: note: in definition of macro 'BPF_CALL_x'
u64 name(__BPF_REG(x, __BPF_DECL_REGS, __BPF_N, __VA_ARGS__)); \
^~~~
>> net/core/filter.c:4896:1: note: in expansion of macro 'BPF_CALL_5'
BPF_CALL_5(bpf_sk_lookup_tcp, struct sk_buff *, skb,
^~~~~~~~~~
net/core/filter.c: In function 'bpf_sk_lookup_tcp':
>> include/linux/filter.h:436:10: error: implicit declaration of function '____bpf_sk_lookup_tcp' [-Werror=implicit-function-declaration]
return ____##name(__BPF_MAP(x,__BPF_CAST,__BPF_N,__VA_ARGS__));\
^
>> include/linux/filter.h:446:31: note: in expansion of macro 'BPF_CALL_x'
#define BPF_CALL_5(name, ...) BPF_CALL_x(5, name, __VA_ARGS__)
^~~~~~~~~~
>> net/core/filter.c:4896:1: note: in expansion of macro 'BPF_CALL_5'
BPF_CALL_5(bpf_sk_lookup_tcp, struct sk_buff *, skb,
^~~~~~~~~~
net/core/filter.c: In function 'sk_lookup':
include/linux/filter.h:439:6: error: invalid storage class for function '____bpf_sk_lookup_tcp'
u64 ____##name(__BPF_MAP(x, __BPF_DECL_ARGS, __BPF_V, __VA_ARGS__))
^
>> include/linux/filter.h:446:31: note: in expansion of macro 'BPF_CALL_x'
#define BPF_CALL_5(name, ...) BPF_CALL_x(5, name, __VA_ARGS__)
^~~~~~~~~~
>> net/core/filter.c:4896:1: note: in expansion of macro 'BPF_CALL_5'
BPF_CALL_5(bpf_sk_lookup_tcp, struct sk_buff *, skb,
^~~~~~~~~~
>> net/core/filter.c:4903:11: error: initializer element is not constant
.func = bpf_sk_lookup_tcp,
^~~~~~~~~~~~~~~~~
net/core/filter.c:4903:11: note: (near initialization for 'bpf_sk_lookup_tcp_proto.func')
In file included from include/net/sock.h:64:0,
from include/linux/sock_diag.h:8,
from net/core/filter.c:29:
>> include/linux/filter.h:432:6: error: invalid storage class for function '____bpf_sk_lookup_udp'
u64 ____##name(__BPF_MAP(x, __BPF_DECL_ARGS, __BPF_V, __VA_ARGS__)); \
^
>> include/linux/filter.h:446:31: note: in expansion of macro 'BPF_CALL_x'
#define BPF_CALL_5(name, ...) BPF_CALL_x(5, name, __VA_ARGS__)
^~~~~~~~~~
net/core/filter.c:4913:1: note: in expansion of macro 'BPF_CALL_5'
BPF_CALL_5(bpf_sk_lookup_udp, struct sk_buff *, skb,
^~~~~~~~~~
>> net/core/filter.c:4913:12: error: static declaration of 'bpf_sk_lookup_udp' follows non-static declaration
BPF_CALL_5(bpf_sk_lookup_udp, struct sk_buff *, skb,
^
include/linux/filter.h:434:6: note: in definition of macro 'BPF_CALL_x'
u64 name(__BPF_REG(x, __BPF_DECL_REGS, __BPF_N, __VA_ARGS__)) \
^~~~
net/core/filter.c:4913:1: note: in expansion of macro 'BPF_CALL_5'
BPF_CALL_5(bpf_sk_lookup_udp, struct sk_buff *, skb,
^~~~~~~~~~
net/core/filter.c:4913:12: note: previous declaration of 'bpf_sk_lookup_udp' was here
BPF_CALL_5(bpf_sk_lookup_udp, struct sk_buff *, skb,
^
include/linux/filter.h:433:6: note: in definition of macro 'BPF_CALL_x'
u64 name(__BPF_REG(x, __BPF_DECL_REGS, __BPF_N, __VA_ARGS__)); \
^~~~
net/core/filter.c:4913:1: note: in expansion of macro 'BPF_CALL_5'
BPF_CALL_5(bpf_sk_lookup_udp, struct sk_buff *, skb,
^~~~~~~~~~
net/core/filter.c: In function 'bpf_sk_lookup_udp':
>> include/linux/filter.h:436:10: error: implicit declaration of function '____bpf_sk_lookup_udp' [-Werror=implicit-function-declaration]
return ____##name(__BPF_MAP(x,__BPF_CAST,__BPF_N,__VA_ARGS__));\
^
>> include/linux/filter.h:446:31: note: in expansion of macro 'BPF_CALL_x'
#define BPF_CALL_5(name, ...) BPF_CALL_x(5, name, __VA_ARGS__)
^~~~~~~~~~
net/core/filter.c:4913:1: note: in expansion of macro 'BPF_CALL_5'
BPF_CALL_5(bpf_sk_lookup_udp, struct sk_buff *, skb,
^~~~~~~~~~
net/core/filter.c: In function 'sk_lookup':
include/linux/filter.h:439:6: error: invalid storage class for function '____bpf_sk_lookup_udp'
u64 ____##name(__BPF_MAP(x, __BPF_DECL_ARGS, __BPF_V, __VA_ARGS__))
^
>> include/linux/filter.h:446:31: note: in expansion of macro 'BPF_CALL_x'
#define BPF_CALL_5(name, ...) BPF_CALL_x(5, name, __VA_ARGS__)
^~~~~~~~~~
net/core/filter.c:4913:1: note: in expansion of macro 'BPF_CALL_5'
BPF_CALL_5(bpf_sk_lookup_udp, struct sk_buff *, skb,
^~~~~~~~~~
net/core/filter.c:4920:11: error: initializer element is not constant
.func = bpf_sk_lookup_udp,
^~~~~~~~~~~~~~~~~
net/core/filter.c:4920:11: note: (near initialization for 'bpf_sk_lookup_udp_proto.func')
In file included from include/net/sock.h:64:0,
from include/linux/sock_diag.h:8,
from net/core/filter.c:29:
--
net//core/filter.c: In function 'sk_lookup':
net//core/filter.c:4870:1: error: invalid storage class for function 'bpf_sk_lookup'
bpf_sk_lookup(struct sk_buff *skb, struct bpf_sock_tuple *tuple, u32 len,
^~~~~~~~~~~~~
net//core/filter.c:4869:1: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
static unsigned long
^~~~~~
In file included from include/net/sock.h:64:0,
from include/linux/sock_diag.h:8,
from net//core/filter.c:29:
>> include/linux/filter.h:432:6: error: invalid storage class for function '____bpf_sk_lookup_tcp'
u64 ____##name(__BPF_MAP(x, __BPF_DECL_ARGS, __BPF_V, __VA_ARGS__)); \
^
>> include/linux/filter.h:446:31: note: in expansion of macro 'BPF_CALL_x'
#define BPF_CALL_5(name, ...) BPF_CALL_x(5, name, __VA_ARGS__)
^~~~~~~~~~
net//core/filter.c:4896:1: note: in expansion of macro 'BPF_CALL_5'
BPF_CALL_5(bpf_sk_lookup_tcp, struct sk_buff *, skb,
^~~~~~~~~~
net//core/filter.c:4896:12: error: static declaration of 'bpf_sk_lookup_tcp' follows non-static declaration
BPF_CALL_5(bpf_sk_lookup_tcp, struct sk_buff *, skb,
^
include/linux/filter.h:434:6: note: in definition of macro 'BPF_CALL_x'
u64 name(__BPF_REG(x, __BPF_DECL_REGS, __BPF_N, __VA_ARGS__)) \
^~~~
net//core/filter.c:4896:1: note: in expansion of macro 'BPF_CALL_5'
BPF_CALL_5(bpf_sk_lookup_tcp, struct sk_buff *, skb,
^~~~~~~~~~
net//core/filter.c:4896:12: note: previous declaration of 'bpf_sk_lookup_tcp' was here
BPF_CALL_5(bpf_sk_lookup_tcp, struct sk_buff *, skb,
^
include/linux/filter.h:433:6: note: in definition of macro 'BPF_CALL_x'
u64 name(__BPF_REG(x, __BPF_DECL_REGS, __BPF_N, __VA_ARGS__)); \
^~~~
net//core/filter.c:4896:1: note: in expansion of macro 'BPF_CALL_5'
BPF_CALL_5(bpf_sk_lookup_tcp, struct sk_buff *, skb,
^~~~~~~~~~
net//core/filter.c: In function 'bpf_sk_lookup_tcp':
>> include/linux/filter.h:436:10: error: implicit declaration of function '____bpf_sk_lookup_tcp' [-Werror=implicit-function-declaration]
return ____##name(__BPF_MAP(x,__BPF_CAST,__BPF_N,__VA_ARGS__));\
^
>> include/linux/filter.h:446:31: note: in expansion of macro 'BPF_CALL_x'
#define BPF_CALL_5(name, ...) BPF_CALL_x(5, name, __VA_ARGS__)
^~~~~~~~~~
net//core/filter.c:4896:1: note: in expansion of macro 'BPF_CALL_5'
BPF_CALL_5(bpf_sk_lookup_tcp, struct sk_buff *, skb,
^~~~~~~~~~
net//core/filter.c: In function 'sk_lookup':
include/linux/filter.h:439:6: error: invalid storage class for function '____bpf_sk_lookup_tcp'
u64 ____##name(__BPF_MAP(x, __BPF_DECL_ARGS, __BPF_V, __VA_ARGS__))
^
>> include/linux/filter.h:446:31: note: in expansion of macro 'BPF_CALL_x'
#define BPF_CALL_5(name, ...) BPF_CALL_x(5, name, __VA_ARGS__)
^~~~~~~~~~
net//core/filter.c:4896:1: note: in expansion of macro 'BPF_CALL_5'
BPF_CALL_5(bpf_sk_lookup_tcp, struct sk_buff *, skb,
^~~~~~~~~~
net//core/filter.c:4903:11: error: initializer element is not constant
.func = bpf_sk_lookup_tcp,
^~~~~~~~~~~~~~~~~
net//core/filter.c:4903:11: note: (near initialization for 'bpf_sk_lookup_tcp_proto.func')
In file included from include/net/sock.h:64:0,
from include/linux/sock_diag.h:8,
from net//core/filter.c:29:
>> include/linux/filter.h:432:6: error: invalid storage class for function '____bpf_sk_lookup_udp'
u64 ____##name(__BPF_MAP(x, __BPF_DECL_ARGS, __BPF_V, __VA_ARGS__)); \
^
>> include/linux/filter.h:446:31: note: in expansion of macro 'BPF_CALL_x'
#define BPF_CALL_5(name, ...) BPF_CALL_x(5, name, __VA_ARGS__)
^~~~~~~~~~
net//core/filter.c:4913:1: note: in expansion of macro 'BPF_CALL_5'
BPF_CALL_5(bpf_sk_lookup_udp, struct sk_buff *, skb,
^~~~~~~~~~
net//core/filter.c:4913:12: error: static declaration of 'bpf_sk_lookup_udp' follows non-static declaration
BPF_CALL_5(bpf_sk_lookup_udp, struct sk_buff *, skb,
^
include/linux/filter.h:434:6: note: in definition of macro 'BPF_CALL_x'
u64 name(__BPF_REG(x, __BPF_DECL_REGS, __BPF_N, __VA_ARGS__)) \
^~~~
net//core/filter.c:4913:1: note: in expansion of macro 'BPF_CALL_5'
BPF_CALL_5(bpf_sk_lookup_udp, struct sk_buff *, skb,
^~~~~~~~~~
net//core/filter.c:4913:12: note: previous declaration of 'bpf_sk_lookup_udp' was here
BPF_CALL_5(bpf_sk_lookup_udp, struct sk_buff *, skb,
^
include/linux/filter.h:433:6: note: in definition of macro 'BPF_CALL_x'
u64 name(__BPF_REG(x, __BPF_DECL_REGS, __BPF_N, __VA_ARGS__)); \
^~~~
net//core/filter.c:4913:1: note: in expansion of macro 'BPF_CALL_5'
BPF_CALL_5(bpf_sk_lookup_udp, struct sk_buff *, skb,
^~~~~~~~~~
net//core/filter.c: In function 'bpf_sk_lookup_udp':
>> include/linux/filter.h:436:10: error: implicit declaration of function '____bpf_sk_lookup_udp' [-Werror=implicit-function-declaration]
return ____##name(__BPF_MAP(x,__BPF_CAST,__BPF_N,__VA_ARGS__));\
^
>> include/linux/filter.h:446:31: note: in expansion of macro 'BPF_CALL_x'
#define BPF_CALL_5(name, ...) BPF_CALL_x(5, name, __VA_ARGS__)
^~~~~~~~~~
net//core/filter.c:4913:1: note: in expansion of macro 'BPF_CALL_5'
BPF_CALL_5(bpf_sk_lookup_udp, struct sk_buff *, skb,
^~~~~~~~~~
net//core/filter.c: In function 'sk_lookup':
include/linux/filter.h:439:6: error: invalid storage class for function '____bpf_sk_lookup_udp'
u64 ____##name(__BPF_MAP(x, __BPF_DECL_ARGS, __BPF_V, __VA_ARGS__))
^
>> include/linux/filter.h:446:31: note: in expansion of macro 'BPF_CALL_x'
#define BPF_CALL_5(name, ...) BPF_CALL_x(5, name, __VA_ARGS__)
^~~~~~~~~~
net//core/filter.c:4913:1: note: in expansion of macro 'BPF_CALL_5'
BPF_CALL_5(bpf_sk_lookup_udp, struct sk_buff *, skb,
^~~~~~~~~~
net//core/filter.c:4920:11: error: initializer element is not constant
.func = bpf_sk_lookup_udp,
^~~~~~~~~~~~~~~~~
net//core/filter.c:4920:11: note: (near initialization for 'bpf_sk_lookup_udp_proto.func')
In file included from include/net/sock.h:64:0,
from include/linux/sock_diag.h:8,
from net//core/filter.c:29:
>> include/linux/filter.h:432:6: error: invalid storage class for function '____bpf_sk_release'
u64 ____##name(__BPF_MAP(x, __BPF_DECL_ARGS, __BPF_V, __VA_ARGS__)); \
^
include/linux/filter.h:443:31: note: in expansion of macro 'BPF_CALL_x'
#define BPF_CALL_2(name, ...) BPF_CALL_x(2, name, __VA_ARGS__)
^~~~~~~~~~
net//core/filter.c:4930:1: note: in expansion of macro 'BPF_CALL_2'
BPF_CALL_2(bpf_sk_release, struct sock *, sk, u64, flags)
^~~~~~~~~~
net//core/filter.c:4930:12: error: static declaration of 'bpf_sk_release' follows non-static declaration
BPF_CALL_2(bpf_sk_release, struct sock *, sk, u64, flags)
^
include/linux/filter.h:434:6: note: in definition of macro 'BPF_CALL_x'
u64 name(__BPF_REG(x, __BPF_DECL_REGS, __BPF_N, __VA_ARGS__)) \
^~~~
net//core/filter.c:4930:1: note: in expansion of macro 'BPF_CALL_2'
BPF_CALL_2(bpf_sk_release, struct sock *, sk, u64, flags)
^~~~~~~~~~
net//core/filter.c:4930:12: note: previous declaration of 'bpf_sk_release' was here
BPF_CALL_2(bpf_sk_release, struct sock *, sk, u64, flags)
^
include/linux/filter.h:433:6: note: in definition of macro 'BPF_CALL_x'
u64 name(__BPF_REG(x, __BPF_DECL_REGS, __BPF_N, __VA_ARGS__)); \
^~~~
net//core/filter.c:4930:1: note: in expansion of macro 'BPF_CALL_2'
BPF_CALL_2(bpf_sk_release, struct sock *, sk, u64, flags)
^~~~~~~~~~
net//core/filter.c: In function 'bpf_sk_release':
>> include/linux/filter.h:436:10: error: implicit declaration of function '____bpf_sk_release' [-Werror=implicit-function-declaration]
return ____##name(__BPF_MAP(x,__BPF_CAST,__BPF_N,__VA_ARGS__));\
^
include/linux/filter.h:443:31: note: in expansion of macro 'BPF_CALL_x'
#define BPF_CALL_2(name, ...) BPF_CALL_x(2, name, __VA_ARGS__)
^~~~~~~~~~
net//core/filter.c:4930:1: note: in expansion of macro 'BPF_CALL_2'
BPF_CALL_2(bpf_sk_release, struct sock *, sk, u64, flags)
^~~~~~~~~~
net//core/filter.c: In function 'sk_lookup':
include/linux/filter.h:439:6: error: invalid storage class for function '____bpf_sk_release'
u64 ____##name(__BPF_MAP(x, __BPF_DECL_ARGS, __BPF_V, __VA_ARGS__))
^
include/linux/filter.h:443:31: note: in expansion of macro 'BPF_CALL_x'
#define BPF_CALL_2(name, ...) BPF_CALL_x(2, name, __VA_ARGS__)
^~~~~~~~~~
net//core/filter.c:4930:1: note: in expansion of macro 'BPF_CALL_2'
BPF_CALL_2(bpf_sk_release, struct sock *, sk, u64, flags)
^~~~~~~~~~
net//core/filter.c:4941:11: error: initializer element is not constant
.func = bpf_sk_release,
^~~~~~~~~~~~~~
net//core/filter.c:4941:11: note: (near initialization for 'bpf_sk_release_proto.func')
net//core/filter.c:4980:1: error: invalid storage class for function 'bpf_base_func_proto'
bpf_base_func_proto(enum bpf_func_id func_id)
^~~~~~~~~~~~~~~~~~~
net//core/filter.c:5009:1: error: invalid storage class for function 'sock_filter_func_proto'
sock_filter_func_proto(enum bpf_func_id func_id, const struct bpf_prog *prog)
^~~~~~~~~~~~~~~~~~~~~~
net//core/filter.c:5025:1: error: invalid storage class for function 'sock_addr_func_proto'
sock_addr_func_proto(enum bpf_func_id func_id, const struct bpf_prog *prog)
^~~~~~~~~~~~~~~~~~~~
net//core/filter.c:5051:1: error: invalid storage class for function 'sk_filter_func_proto'
sk_filter_func_proto(enum bpf_func_id func_id, const struct bpf_prog *prog)
^~~~~~~~~~~~~~~~~~~~
net//core/filter.c:5068:1: error: invalid storage class for function 'cg_skb_func_proto'
cg_skb_func_proto(enum bpf_func_id func_id, const struct bpf_prog *prog)
^~~~~~~~~~~~~~~~~
net//core/filter.c:5079:1: error: invalid storage class for function 'tc_cls_act_func_proto'
tc_cls_act_func_proto(enum bpf_func_id func_id, const struct bpf_prog *prog)
^~~~~~~~~~~~~~~~~~~~~
net//core/filter.c:5166:1: error: invalid storage class for function 'xdp_func_proto'
xdp_func_proto(enum bpf_func_id func_id, const struct bpf_prog *prog)
^~~~~~~~~~~~~~
net//core/filter.c:5193:1: error: invalid storage class for function 'sock_ops_func_proto'
sock_ops_func_proto(enum bpf_func_id func_id, const struct bpf_prog *prog)
^~~~~~~~~~~~~~~~~~~
net//core/filter.c:5216:1: error: invalid storage class for function 'sk_msg_func_proto'
sk_msg_func_proto(enum bpf_func_id func_id, const struct bpf_prog *prog)
^~~~~~~~~~~~~~~~~
net//core/filter.c:5237:1: error: invalid storage class for function 'sk_skb_func_proto'
sk_skb_func_proto(enum bpf_func_id func_id, const struct bpf_prog *prog)
^~~~~~~~~~~~~~~~~
net//core/filter.c:5272:1: error: invalid storage class for function 'lwt_out_func_proto'
lwt_out_func_proto(enum bpf_func_id func_id, const struct bpf_prog *prog)
^~~~~~~~~~~~~~~~~~
net//core/filter.c:5299:1: error: invalid storage class for function 'lwt_in_func_proto'
lwt_in_func_proto(enum bpf_func_id func_id, const struct bpf_prog *prog)
^~~~~~~~~~~~~~~~~
net//core/filter.c:5310:1: error: invalid storage class for function 'lwt_xmit_func_proto'
lwt_xmit_func_proto(enum bpf_func_id func_id, const struct bpf_prog *prog)
^~~~~~~~~~~~~~~~~~~
net//core/filter.c:5345:1: error: invalid storage class for function 'lwt_seg6local_func_proto'
lwt_seg6local_func_proto(enum bpf_func_id func_id, const struct bpf_prog *prog)
^~~~~~~~~~~~~~~~~~~~~~~~
net//core/filter.c:5361:13: error: invalid storage class for function 'bpf_skb_is_valid_access'
static bool bpf_skb_is_valid_access(int off, int size, enum bpf_access_type type,
^~~~~~~~~~~~~~~~~~~~~~~
net//core/filter.c:5404:13: error: invalid storage class for function 'sk_filter_is_valid_access'
static bool sk_filter_is_valid_access(int off, int size,
^~~~~~~~~~~~~~~~~~~~~~~~~
net//core/filter.c:5430:13: error: invalid storage class for function 'lwt_is_valid_access'
static bool lwt_is_valid_access(int off, int size,
^~~~~~~~~~~~~~~~~~~
net//core/filter.c:5466:13: error: invalid storage class for function '__sock_filter_check_attach_type'
static bool __sock_filter_check_attach_type(int off,
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
net//core/filter.c:5509:13: error: invalid storage class for function '__sock_filter_check_size'
static bool __sock_filter_check_size(int off, int size,
^~~~~~~~~~~~~~~~~~~~~~~~
net//core/filter.c:5536:13: error: invalid storage class for function 'sock_filter_is_valid_access'
static bool sock_filter_is_valid_access(int off, int size,
^~~~~~~~~~~~~~~~~~~~~~~~~~~
net//core/filter.c:5547:12: error: invalid storage class for function 'bpf_unclone_prologue'
static int bpf_unclone_prologue(struct bpf_insn *insn_buf, bool direct_write,
^~~~~~~~~~~~~~~~~~~~
net//core/filter.c:5586:12: error: invalid storage class for function 'bpf_gen_ld_abs'
static int bpf_gen_ld_abs(const struct bpf_insn *orig,
^~~~~~~~~~~~~~
net//core/filter.c:5621:12: error: invalid storage class for function 'tc_cls_act_prologue'
static int tc_cls_act_prologue(struct bpf_insn *insn_buf, bool direct_write,
^~~~~~~~~~~~~~~~~~~
net//core/filter.c:5627:13: error: invalid storage class for function 'tc_cls_act_is_valid_access'
static bool tc_cls_act_is_valid_access(int off, int size,
^~~~~~~~~~~~~~~~~~~~~~~~~~
net//core/filter.c:5662:13: error: invalid storage class for function '__is_valid_xdp_access'
static bool __is_valid_xdp_access(int off, int size)
^~~~~~~~~~~~~~~~~~~~~
net//core/filter.c:5674:13: error: invalid storage class for function 'xdp_is_valid_access'
static bool xdp_is_valid_access(int off, int size,
^~~~~~~~~~~~~~~~~~~
net//core/filter.c:5714:13: error: invalid storage class for function 'sock_addr_is_valid_access'
static bool sock_addr_is_valid_access(int off, int size,
^~~~~~~~~~~~~~~~~~~~~~~~~
net//core/filter.c:5714:1: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
static bool sock_addr_is_valid_access(int off, int size,
^~~~~~
net//core/filter.c:5801:13: error: invalid storage class for function 'sock_ops_is_valid_access'
static bool sock_ops_is_valid_access(int off, int size,
^~~~~~~~~~~~~~~~~~~~~~~~
net//core/filter.c:5842:12: error: invalid storage class for function 'sk_skb_prologue'
static int sk_skb_prologue(struct bpf_insn *insn_buf, bool direct_write,
^~~~~~~~~~~~~~~
net//core/filter.c:5848:13: error: invalid storage class for function 'sk_skb_is_valid_access'
static bool sk_skb_is_valid_access(int off, int size,
^~~~~~~~~~~~~~~~~~~~~~
net//core/filter.c:5883:13: error: invalid storage class for function 'sk_msg_is_valid_access'
static bool sk_msg_is_valid_access(int off, int size,
^~~~~~~~~~~~~~~~~~~~~~
net//core/filter.c:5915:12: error: invalid storage class for function 'bpf_convert_ctx_access'
static u32 bpf_convert_ctx_access(enum bpf_access_type type,
^~~~~~~~~~~~~~~~~~~~~~
net//core/filter.c:6318:12: error: invalid storage class for function 'tc_cls_act_convert_ctx_access'
static u32 tc_cls_act_convert_ctx_access(enum bpf_access_type type,
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
net//core/filter.c:6342:12: error: invalid storage class for function 'xdp_convert_ctx_access'
static u32 xdp_convert_ctx_access(enum bpf_access_type type,
^~~~~~~~~~~~~~~~~~~~~~
net//core/filter.c:6462:12: error: invalid storage class for function 'sock_addr_convert_ctx_access'
static u32 sock_addr_convert_ctx_access(enum bpf_access_type type,
^~~~~~~~~~~~~~~~~~~~~~~~~~~~
net//core/filter.c:6551:12: error: invalid storage class for function 'sock_ops_convert_ctx_access'
static u32 sock_ops_convert_ctx_access(enum bpf_access_type type,
^~~~~~~~~~~~~~~~~~~~~~~~~~~
net//core/filter.c:6890:12: error: invalid storage class for function 'sk_skb_convert_ctx_access'
static u32 sk_skb_convert_ctx_access(enum bpf_access_type type,
^~~~~~~~~~~~~~~~~~~~~~~~~
net//core/filter.c:6915:12: error: invalid storage class for function 'sk_msg_convert_ctx_access'
static u32 sk_msg_convert_ctx_access(enum bpf_access_type type,
^~~~~~~~~~~~~~~~~~~~~~~~~
net//core/filter.c:7192:1: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
int sk_get_filter(struct sock *sk, struct sock_filter __user *ubuf,
^~~
net//core/filter.c:7247:13: error: invalid storage class for function 'bpf_init_reuseport_kern'
static void bpf_init_reuseport_kern(struct sk_reuseport_kern *reuse_kern,
^~~~~~~~~~~~~~~~~~~~~~~
In file included from include/net/sock.h:64:0,
from include/linux/sock_diag.h:8,
from net//core/filter.c:29:
>> include/linux/filter.h:432:6: error: invalid storage class for function '____sk_select_reuseport'
u64 ____##name(__BPF_MAP(x, __BPF_DECL_ARGS, __BPF_V, __VA_ARGS__)); \
^
include/linux/filter.h:445:31: note: in expansion of macro 'BPF_CALL_x'
#define BPF_CALL_4(name, ...) BPF_CALL_x(4, name, __VA_ARGS__)
^~~~~~~~~~
net//core/filter.c:7277:1: note: in expansion of macro 'BPF_CALL_4'
BPF_CALL_4(sk_select_reuseport, struct sk_reuseport_kern *, reuse_kern,
^~~~~~~~~~
net//core/filter.c:7277:12: error: static declaration of 'sk_select_reuseport' follows non-static declaration
BPF_CALL_4(sk_select_reuseport, struct sk_reuseport_kern *, reuse_kern,
^
include/linux/filter.h:434:6: note: in definition of macro 'BPF_CALL_x'
u64 name(__BPF_REG(x, __BPF_DECL_REGS, __BPF_N, __VA_ARGS__)) \
^~~~
net//core/filter.c:7277:1: note: in expansion of macro 'BPF_CALL_4'
BPF_CALL_4(sk_select_reuseport, struct sk_reuseport_kern *, reuse_kern,
^~~~~~~~~~
net//core/filter.c:7277:12: note: previous declaration of 'sk_select_reuseport' was here
BPF_CALL_4(sk_select_reuseport, struct sk_reuseport_kern *, reuse_kern,
^
include/linux/filter.h:433:6: note: in definition of macro 'BPF_CALL_x'
u64 name(__BPF_REG(x, __BPF_DECL_REGS, __BPF_N, __VA_ARGS__)); \
^~~~
net//core/filter.c:7277:1: note: in expansion of macro 'BPF_CALL_4'
BPF_CALL_4(sk_select_reuseport, struct sk_reuseport_kern *, reuse_kern,
^~~~~~~~~~
net//core/filter.c: In function 'sk_select_reuseport':
>> include/linux/filter.h:436:10: error: implicit declaration of function '____sk_select_reuseport' [-Werror=implicit-function-declaration]
return ____##name(__BPF_MAP(x,__BPF_CAST,__BPF_N,__VA_ARGS__));\
^
include/linux/filter.h:445:31: note: in expansion of macro 'BPF_CALL_x'
#define BPF_CALL_4(name, ...) BPF_CALL_x(4, name, __VA_ARGS__)
^~~~~~~~~~
net//core/filter.c:7277:1: note: in expansion of macro 'BPF_CALL_4'
BPF_CALL_4(sk_select_reuseport, struct sk_reuseport_kern *, reuse_kern,
^~~~~~~~~~
net//core/filter.c: In function 'sk_lookup':
include/linux/filter.h:439:6: error: invalid storage class for function '____sk_select_reuseport'
u64 ____##name(__BPF_MAP(x, __BPF_DECL_ARGS, __BPF_V, __VA_ARGS__))
^
include/linux/filter.h:445:31: note: in expansion of macro 'BPF_CALL_x'
#define BPF_CALL_4(name, ...) BPF_CALL_x(4, name, __VA_ARGS__)
^~~~~~~~~~
net//core/filter.c:7277:1: note: in expansion of macro 'BPF_CALL_4'
BPF_CALL_4(sk_select_reuseport, struct sk_reuseport_kern *, reuse_kern,
^~~~~~~~~~
net//core/filter.c:7323:20: error: initializer element is not constant
.func = sk_select_reuseport,
^~~~~~~~~~~~~~~~~~~
net//core/filter.c:7323:20: note: (near initialization for 'sk_select_reuseport_proto.func')
In file included from include/net/sock.h:64:0,
from include/linux/sock_diag.h:8,
from net//core/filter.c:29:
>> include/linux/filter.h:432:6: error: invalid storage class for function '____sk_reuseport_load_bytes'
u64 ____##name(__BPF_MAP(x, __BPF_DECL_ARGS, __BPF_V, __VA_ARGS__)); \
^
include/linux/filter.h:445:31: note: in expansion of macro 'BPF_CALL_x'
#define BPF_CALL_4(name, ...) BPF_CALL_x(4, name, __VA_ARGS__)
^~~~~~~~~~
net//core/filter.c:7332:1: note: in expansion of macro 'BPF_CALL_4'
BPF_CALL_4(sk_reuseport_load_bytes,
^~~~~~~~~~
net//core/filter.c:7332:12: error: static declaration of 'sk_reuseport_load_bytes' follows non-static declaration
BPF_CALL_4(sk_reuseport_load_bytes,
^
include/linux/filter.h:434:6: note: in definition of macro 'BPF_CALL_x'
u64 name(__BPF_REG(x, __BPF_DECL_REGS, __BPF_N, __VA_ARGS__)) \
^~~~
net//core/filter.c:7332:1: note: in expansion of macro 'BPF_CALL_4'
BPF_CALL_4(sk_reuseport_load_bytes,
^~~~~~~~~~
net//core/filter.c:7332:12: note: previous declaration of 'sk_reuseport_load_bytes' was here
BPF_CALL_4(sk_reuseport_load_bytes,
^
include/linux/filter.h:433:6: note: in definition of macro 'BPF_CALL_x'
u64 name(__BPF_REG(x, __BPF_DECL_REGS, __BPF_N, __VA_ARGS__)); \
^~~~
net//core/filter.c:7332:1: note: in expansion of macro 'BPF_CALL_4'
BPF_CALL_4(sk_reuseport_load_bytes,
^~~~~~~~~~
net//core/filter.c: In function 'sk_reuseport_load_bytes':
>> include/linux/filter.h:436:10: error: implicit declaration of function '____sk_reuseport_load_bytes' [-Werror=implicit-function-declaration]
return ____##name(__BPF_MAP(x,__BPF_CAST,__BPF_N,__VA_ARGS__));\
^
include/linux/filter.h:445:31: note: in expansion of macro 'BPF_CALL_x'
#define BPF_CALL_4(name, ...) BPF_CALL_x(4, name, __VA_ARGS__)
^~~~~~~~~~
net//core/filter.c:7332:1: note: in expansion of macro 'BPF_CALL_4'
BPF_CALL_4(sk_reuseport_load_bytes,
^~~~~~~~~~
net//core/filter.c: In function 'sk_lookup':
include/linux/filter.h:439:6: error: invalid storage class for function '____sk_reuseport_load_bytes'
u64 ____##name(__BPF_MAP(x, __BPF_DECL_ARGS, __BPF_V, __VA_ARGS__))
^
include/linux/filter.h:445:31: note: in expansion of macro 'BPF_CALL_x'
#define BPF_CALL_4(name, ...) BPF_CALL_x(4, name, __VA_ARGS__)
^~~~~~~~~~
net//core/filter.c:7332:1: note: in expansion of macro 'BPF_CALL_4'
BPF_CALL_4(sk_reuseport_load_bytes,
^~~~~~~~~~
net//core/filter.c:7340:11: error: initializer element is not constant
.func = sk_reuseport_load_bytes,
^~~~~~~~~~~~~~~~~~~~~~~
net//core/filter.c:7340:11: note: (near initialization for 'sk_reuseport_load_bytes_proto.func')
In file included from include/net/sock.h:64:0,
from include/linux/sock_diag.h:8,
from net//core/filter.c:29:
>> include/linux/filter.h:432:6: error: invalid storage class for function '____sk_reuseport_load_bytes_relative'
u64 ____##name(__BPF_MAP(x, __BPF_DECL_ARGS, __BPF_V, __VA_ARGS__)); \
^
>> include/linux/filter.h:446:31: note: in expansion of macro 'BPF_CALL_x'
#define BPF_CALL_5(name, ...) BPF_CALL_x(5, name, __VA_ARGS__)
^~~~~~~~~~
net//core/filter.c:7349:1: note: in expansion of macro 'BPF_CALL_5'
BPF_CALL_5(sk_reuseport_load_bytes_relative,
^~~~~~~~~~
net//core/filter.c:7349:12: error: static declaration of 'sk_reuseport_load_bytes_relative' follows non-static declaration
BPF_CALL_5(sk_reuseport_load_bytes_relative,
^
include/linux/filter.h:434:6: note: in definition of macro 'BPF_CALL_x'
u64 name(__BPF_REG(x, __BPF_DECL_REGS, __BPF_N, __VA_ARGS__)) \
^~~~
net//core/filter.c:7349:1: note: in expansion of macro 'BPF_CALL_5'
BPF_CALL_5(sk_reuseport_load_bytes_relative,
^~~~~~~~~~
net//core/filter.c:7349:12: note: previous declaration of 'sk_reuseport_load_bytes_relative' was here
BPF_CALL_5(sk_reuseport_load_bytes_relative,
^
include/linux/filter.h:433:6: note: in definition of macro 'BPF_CALL_x'
u64 name(__BPF_REG(x, __BPF_DECL_REGS, __BPF_N, __VA_ARGS__)); \
^~~~
net//core/filter.c:7349:1: note: in expansion of macro 'BPF_CALL_5'
BPF_CALL_5(sk_reuseport_load_bytes_relative,
^~~~~~~~~~
net//core/filter.c: In function 'sk_reuseport_load_bytes_relative':
>> include/linux/filter.h:436:10: error: implicit declaration of function '____sk_reuseport_load_bytes_relative' [-Werror=implicit-function-declaration]
return ____##name(__BPF_MAP(x,__BPF_CAST,__BPF_N,__VA_ARGS__));\
^
>> include/linux/filter.h:446:31: note: in expansion of macro 'BPF_CALL_x'
#define BPF_CALL_5(name, ...) BPF_CALL_x(5, name, __VA_ARGS__)
^~~~~~~~~~
net//core/filter.c:7349:1: note: in expansion of macro 'BPF_CALL_5'
BPF_CALL_5(sk_reuseport_load_bytes_relative,
^~~~~~~~~~
net//core/filter.c: In function 'sk_lookup':
include/linux/filter.h:439:6: error: invalid storage class for function '____sk_reuseport_load_bytes_relative'
u64 ____##name(__BPF_MAP(x, __BPF_DECL_ARGS, __BPF_V, __VA_ARGS__))
^
vim +/bpf_sk_lookup +4870 net/core/filter.c
4863
4864 /* bpf_sk_lookup performs the core lookup for different types of sockets,
4865 * taking a reference on the socket if it doesn't have the flag SOCK_RCU_FREE.
4866 * Returns the socket as an 'unsigned long' to simplify the casting in the
4867 * callers to satisfy BPF_CALL declarations.
4868 */
> 4869 static unsigned long
> 4870 bpf_sk_lookup(struct sk_buff *skb, struct bpf_sock_tuple *tuple, u32 len,
4871 u8 proto, u32 netns_id, u64 flags)
4872 {
4873 struct net *caller_net = dev_net(skb->dev);
4874 struct sock *sk = NULL;
4875 struct net *net;
4876
4877 if (unlikely(len != sizeof(struct bpf_sock_tuple) || flags ||
4878 (tuple->family != AF_INET && tuple->family != AF_INET6)))
4879 goto out;
4880
4881 if (netns_id)
4882 net = get_net_ns_by_id(caller_net, netns_id);
4883 else
4884 net = caller_net;
4885 if (unlikely(!net))
4886 goto out;
4887 sk = sk_lookup(net, tuple, skb, proto);
4888 put_net(net);
4889
4890 if (sk)
4891 sk = sk_to_full_sk(sk);
4892 out:
4893 return (unsigned long) sk;
4894 }
4895
> 4896 BPF_CALL_5(bpf_sk_lookup_tcp, struct sk_buff *, skb,
4897 struct bpf_sock_tuple *, tuple, u32, len, u32, netns_id, u64, flags)
4898 {
4899 return bpf_sk_lookup(skb, tuple, len, IPPROTO_TCP, netns_id, flags);
4900 }
4901
4902 static const struct bpf_func_proto bpf_sk_lookup_tcp_proto = {
> 4903 .func = bpf_sk_lookup_tcp,
4904 .gpl_only = false,
4905 .ret_type = RET_PTR_TO_SOCKET_OR_NULL,
4906 .arg1_type = ARG_PTR_TO_CTX,
4907 .arg2_type = ARG_PTR_TO_MEM,
4908 .arg3_type = ARG_CONST_SIZE,
4909 .arg4_type = ARG_ANYTHING,
4910 .arg5_type = ARG_ANYTHING,
4911 };
4912
> 4913 BPF_CALL_5(bpf_sk_lookup_udp, struct sk_buff *, skb,
4914 struct bpf_sock_tuple *, tuple, u32, len, u32, netns_id, u64, flags)
4915 {
4916 return bpf_sk_lookup(skb, tuple, len, IPPROTO_UDP, netns_id, flags);
4917 }
4918
4919 static const struct bpf_func_proto bpf_sk_lookup_udp_proto = {
4920 .func = bpf_sk_lookup_udp,
4921 .gpl_only = false,
4922 .ret_type = RET_PTR_TO_SOCKET_OR_NULL,
4923 .arg1_type = ARG_PTR_TO_CTX,
4924 .arg2_type = ARG_PTR_TO_MEM,
4925 .arg3_type = ARG_CONST_SIZE,
4926 .arg4_type = ARG_ANYTHING,
4927 .arg5_type = ARG_ANYTHING,
4928 };
4929
> 4930 BPF_CALL_2(bpf_sk_release, struct sock *, sk, u64, flags)
4931 {
4932 if (!sock_flag(sk, SOCK_RCU_FREE))
4933 sock_gen_put(sk);
4934
4935 if (unlikely(flags))
4936 return -EINVAL;
4937 return 0;
4938 }
4939
4940 static const struct bpf_func_proto bpf_sk_release_proto = {
> 4941 .func = bpf_sk_release,
4942 .gpl_only = false,
4943 .ret_type = RET_INTEGER,
4944 .arg1_type = ARG_PTR_TO_SOCKET,
4945 .arg2_type = ARG_ANYTHING,
4946 };
4947
4948 bool bpf_helper_changes_pkt_data(void *func)
4949 {
4950 if (func == bpf_skb_vlan_push ||
4951 func == bpf_skb_vlan_pop ||
4952 func == bpf_skb_store_bytes ||
4953 func == bpf_skb_change_proto ||
4954 func == bpf_skb_change_head ||
4955 func == sk_skb_change_head ||
4956 func == bpf_skb_change_tail ||
4957 func == sk_skb_change_tail ||
4958 func == bpf_skb_adjust_room ||
4959 func == bpf_skb_pull_data ||
4960 func == sk_skb_pull_data ||
4961 func == bpf_clone_redirect ||
4962 func == bpf_l3_csum_replace ||
4963 func == bpf_l4_csum_replace ||
4964 func == bpf_xdp_adjust_head ||
4965 func == bpf_xdp_adjust_meta ||
4966 func == bpf_msg_pull_data ||
4967 func == bpf_xdp_adjust_tail ||
4968 #if IS_ENABLED(CONFIG_IPV6_SEG6_BPF)
4969 func == bpf_lwt_seg6_store_bytes ||
4970 func == bpf_lwt_seg6_adjust_srh ||
4971 func == bpf_lwt_seg6_action ||
4972 #endif
4973 func == bpf_lwt_push_encap)
4974 return true;
4975
4976 return false;
4977 }
4978
4979 static const struct bpf_func_proto *
> 4980 bpf_base_func_proto(enum bpf_func_id func_id)
4981 {
4982 switch (func_id) {
4983 case BPF_FUNC_map_lookup_elem:
4984 return &bpf_map_lookup_elem_proto;
4985 case BPF_FUNC_map_update_elem:
4986 return &bpf_map_update_elem_proto;
4987 case BPF_FUNC_map_delete_elem:
4988 return &bpf_map_delete_elem_proto;
4989 case BPF_FUNC_get_prandom_u32:
4990 return &bpf_get_prandom_u32_proto;
4991 case BPF_FUNC_get_smp_processor_id:
4992 return &bpf_get_raw_smp_processor_id_proto;
4993 case BPF_FUNC_get_numa_node_id:
4994 return &bpf_get_numa_node_id_proto;
4995 case BPF_FUNC_tail_call:
4996 return &bpf_tail_call_proto;
4997 case BPF_FUNC_ktime_get_ns:
4998 return &bpf_ktime_get_ns_proto;
4999 case BPF_FUNC_trace_printk:
5000 if (capable(CAP_SYS_ADMIN))
5001 return bpf_get_trace_printk_proto();
5002 /* else: fall through */
5003 default:
5004 return NULL;
5005 }
5006 }
5007
5008 static const struct bpf_func_proto *
> 5009 sock_filter_func_proto(enum bpf_func_id func_id, const struct bpf_prog *prog)
5010 {
5011 switch (func_id) {
5012 /* inet and inet6 sockets are created in a process
5013 * context so there is always a valid uid/gid
5014 */
5015 case BPF_FUNC_get_current_uid_gid:
5016 return &bpf_get_current_uid_gid_proto;
5017 case BPF_FUNC_get_local_storage:
5018 return &bpf_get_local_storage_proto;
5019 default:
5020 return bpf_base_func_proto(func_id);
5021 }
5022 }
5023
5024 static const struct bpf_func_proto *
> 5025 sock_addr_func_proto(enum bpf_func_id func_id, const struct bpf_prog *prog)
5026 {
5027 switch (func_id) {
5028 /* inet and inet6 sockets are created in a process
5029 * context so there is always a valid uid/gid
5030 */
5031 case BPF_FUNC_get_current_uid_gid:
5032 return &bpf_get_current_uid_gid_proto;
5033 case BPF_FUNC_bind:
5034 switch (prog->expected_attach_type) {
5035 case BPF_CGROUP_INET4_CONNECT:
5036 case BPF_CGROUP_INET6_CONNECT:
5037 return &bpf_bind_proto;
5038 default:
5039 return NULL;
5040 }
5041 case BPF_FUNC_get_socket_cookie:
5042 return &bpf_get_socket_cookie_sock_addr_proto;
5043 case BPF_FUNC_get_local_storage:
5044 return &bpf_get_local_storage_proto;
5045 default:
5046 return bpf_base_func_proto(func_id);
5047 }
5048 }
5049
5050 static const struct bpf_func_proto *
> 5051 sk_filter_func_proto(enum bpf_func_id func_id, const struct bpf_prog *prog)
5052 {
5053 switch (func_id) {
5054 case BPF_FUNC_skb_load_bytes:
5055 return &bpf_skb_load_bytes_proto;
5056 case BPF_FUNC_skb_load_bytes_relative:
5057 return &bpf_skb_load_bytes_relative_proto;
5058 case BPF_FUNC_get_socket_cookie:
5059 return &bpf_get_socket_cookie_proto;
5060 case BPF_FUNC_get_socket_uid:
5061 return &bpf_get_socket_uid_proto;
5062 default:
5063 return bpf_base_func_proto(func_id);
5064 }
5065 }
5066
5067 static const struct bpf_func_proto *
> 5068 cg_skb_func_proto(enum bpf_func_id func_id, const struct bpf_prog *prog)
5069 {
5070 switch (func_id) {
5071 case BPF_FUNC_get_local_storage:
5072 return &bpf_get_local_storage_proto;
5073 default:
5074 return sk_filter_func_proto(func_id, prog);
5075 }
5076 }
5077
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation
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