linux-kernel - next: s390 allyesconfig fails to compile samples/seccomp

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Message-ID: <20170106150417.GQ5556@dhcp22.suse.cz>
Date:   Fri, 6 Jan 2017 16:04:17 +0100
From:   Michal Hocko <mhocko@...nel.org>
To:     Kees Cook <keescook@...omium.org>
Cc:     LKML <linux-kernel@...r.kernel.org>
Subject: next: s390 allyesconfig fails to compile samples/seccomp

Hi,
I am not relly sure what went wrong, but I've noticed that allyesconfig
doesn't compile with my s390 crosscompiler with a strange error
messages for linux-next (next-20170106). Linus' tree compiles just fine.
It smells like some headers include problems because
$ git diff origin/master..next/master -- samples/seccomp/
doesn't show anything...

samples/seccomp/bpf-helper.h:134:2: error: #error __BITS_PER_LONG value unusable.
 #error __BITS_PER_LONG value unusable.
  ^
In file included from samples/seccomp/bpf-fancy.c:12:0:
samples/seccomp/bpf-fancy.c: In function ‘main’:
samples/seccomp/bpf-fancy.c:37:11: error: ‘__NR_exit’ undeclared (first use in this function)
   SYSCALL(__NR_exit, ALLOW),
           ^
./usr/include/linux/filter.h:51:69: note: in definition of macro ‘BPF_JUMP’
 #define BPF_JUMP(code, k, jt, jf) { (unsigned short)(code), jt, jf, k }
                                                                     ^
samples/seccomp/bpf-fancy.c:37:3: note: in expansion of macro ‘SYSCALL’
   SYSCALL(__NR_exit, ALLOW),
   ^
samples/seccomp/bpf-fancy.c:37:11: note: each undeclared identifier is reported only once for each function it appears in
   SYSCALL(__NR_exit, ALLOW),
           ^
./usr/include/linux/filter.h:51:69: note: in definition of macro ‘BPF_JUMP’
 #define BPF_JUMP(code, k, jt, jf) { (unsigned short)(code), jt, jf, k }
                                                                     ^
samples/seccomp/bpf-fancy.c:37:3: note: in expansion of macro ‘SYSCALL’
   SYSCALL(__NR_exit, ALLOW),
   ^
samples/seccomp/bpf-fancy.c:38:11: error: ‘__NR_exit_group’ undeclared (first use in this function)
   SYSCALL(__NR_exit_group, ALLOW),
           ^
./usr/include/linux/filter.h:51:69: note: in definition of macro ‘BPF_JUMP’
 #define BPF_JUMP(code, k, jt, jf) { (unsigned short)(code), jt, jf, k }
                                                                     ^
samples/seccomp/bpf-fancy.c:38:3: note: in expansion of macro ‘SYSCALL’
   SYSCALL(__NR_exit_group, ALLOW),
   ^
samples/seccomp/bpf-fancy.c:39:11: error: ‘__NR_write’ undeclared (first use in this function)
   SYSCALL(__NR_write, JUMP(&l, write_fd)),
           ^
./usr/include/linux/filter.h:51:69: note: in definition of macro ‘BPF_JUMP’
 #define BPF_JUMP(code, k, jt, jf) { (unsigned short)(code), jt, jf, k }
                                                                     ^
samples/seccomp/bpf-fancy.c:39:3: note: in expansion of macro ‘SYSCALL’
   SYSCALL(__NR_write, JUMP(&l, write_fd)),
-- 
Michal Hocko
SUSE Labs