2023-06-06 03:22:17

by Stephen Rothwell

[permalink] [raw]
Subject: linux-next: build failure after merge of the landlock tree

Hi all,

After merging the landlock tree, today's linux-next build (powerpc
ppc64_defconfig) failed like this:

security/landlock/net.c:165:51: error: expected '=', ',', ';', 'asm' or '__attribute__' before '__lsm_ro_after_init'
165 | static struct security_hook_list landlock_hooks[] __lsm_ro_after_init = {
| ^~~~~~~~~~~~~~~~~~~
security/landlock/net.c: In function 'landlock_add_net_hooks':
security/landlock/net.c:172:28: error: 'landlock_hooks' undeclared (first use in this function)
172 | security_add_hooks(landlock_hooks, ARRAY_SIZE(landlock_hooks),
| ^~~~~~~~~~~~~~
security/landlock/net.c:172:28: note: each undeclared identifier is reported only once for each function it appears in
In file included from include/linux/container_of.h:5,
from include/linux/kernel.h:21,
from include/linux/uio.h:8,
from include/linux/socket.h:8,
from include/uapi/linux/in.h:25,
from include/linux/in.h:19,
from security/landlock/net.c:9:
include/linux/build_bug.h:16:51: error: bit-field '<anonymous>' width not an integer constant
16 | #define BUILD_BUG_ON_ZERO(e) ((int)(sizeof(struct { int:(-!!(e)); })))
| ^
include/linux/compiler.h:231:33: note: in expansion of macro 'BUILD_BUG_ON_ZERO'
231 | #define __must_be_array(a) BUILD_BUG_ON_ZERO(__same_type((a), &(a)[0]))
| ^~~~~~~~~~~~~~~~~
include/linux/kernel.h:56:59: note: in expansion of macro '__must_be_array'
56 | #define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]) + __must_be_array(arr))
| ^~~~~~~~~~~~~~~
security/landlock/net.c:172:44: note: in expansion of macro 'ARRAY_SIZE'
172 | security_add_hooks(landlock_hooks, ARRAY_SIZE(landlock_hooks),
| ^~~~~~~~~~
security/landlock/net.c: At top level:
security/landlock/net.c:157:12: warning: 'hook_socket_connect' defined but not used [-Wunused-function]
157 | static int hook_socket_connect(struct socket *const sock,
| ^~~~~~~~~~~~~~~~~~~
security/landlock/net.c:150:12: warning: 'hook_socket_bind' defined but not used [-Wunused-function]
150 | static int hook_socket_bind(struct socket *const sock,
| ^~~~~~~~~~~~~~~~

Caused by commit

6d0bfdb25ce6 ("landlock: Add network rules and TCP hooks support")

I have use the landlock tree from next-20230605 for today.

--
Cheers,
Stephen Rothwell


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2023-06-06 07:54:31

by Mickaël Salaün

[permalink] [raw]
Subject: Re: linux-next: build failure after merge of the landlock tree

Hi Stephen,

I only checked this branch with a previous kernel version. It is now
fixed and pushed.

Thanks,
Mickaël


On 06/06/2023 05:02, Stephen Rothwell wrote:
> Hi all,
>
> After merging the landlock tree, today's linux-next build (powerpc
> ppc64_defconfig) failed like this:
>
> security/landlock/net.c:165:51: error: expected '=', ',', ';', 'asm' or '__attribute__' before '__lsm_ro_after_init'
> 165 | static struct security_hook_list landlock_hooks[] __lsm_ro_after_init = {
> | ^~~~~~~~~~~~~~~~~~~
> security/landlock/net.c: In function 'landlock_add_net_hooks':
> security/landlock/net.c:172:28: error: 'landlock_hooks' undeclared (first use in this function)
> 172 | security_add_hooks(landlock_hooks, ARRAY_SIZE(landlock_hooks),
> | ^~~~~~~~~~~~~~
> security/landlock/net.c:172:28: note: each undeclared identifier is reported only once for each function it appears in
> In file included from include/linux/container_of.h:5,
> from include/linux/kernel.h:21,
> from include/linux/uio.h:8,
> from include/linux/socket.h:8,
> from include/uapi/linux/in.h:25,
> from include/linux/in.h:19,
> from security/landlock/net.c:9:
> include/linux/build_bug.h:16:51: error: bit-field '<anonymous>' width not an integer constant
> 16 | #define BUILD_BUG_ON_ZERO(e) ((int)(sizeof(struct { int:(-!!(e)); })))
> | ^
> include/linux/compiler.h:231:33: note: in expansion of macro 'BUILD_BUG_ON_ZERO'
> 231 | #define __must_be_array(a) BUILD_BUG_ON_ZERO(__same_type((a), &(a)[0]))
> | ^~~~~~~~~~~~~~~~~
> include/linux/kernel.h:56:59: note: in expansion of macro '__must_be_array'
> 56 | #define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]) + __must_be_array(arr))
> | ^~~~~~~~~~~~~~~
> security/landlock/net.c:172:44: note: in expansion of macro 'ARRAY_SIZE'
> 172 | security_add_hooks(landlock_hooks, ARRAY_SIZE(landlock_hooks),
> | ^~~~~~~~~~
> security/landlock/net.c: At top level:
> security/landlock/net.c:157:12: warning: 'hook_socket_connect' defined but not used [-Wunused-function]
> 157 | static int hook_socket_connect(struct socket *const sock,
> | ^~~~~~~~~~~~~~~~~~~
> security/landlock/net.c:150:12: warning: 'hook_socket_bind' defined but not used [-Wunused-function]
> 150 | static int hook_socket_bind(struct socket *const sock,
> | ^~~~~~~~~~~~~~~~
>
> Caused by commit
>
> 6d0bfdb25ce6 ("landlock: Add network rules and TCP hooks support")
>
> I have use the landlock tree from next-20230605 for today.
>