Re: [linux-next:master 1997/7806] include/linux/lsm_hook_defs.h:408:18: error: 'uring_sqpoll_default' defined but not used

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On Wed, Oct 13, 2021 at 4:17 AM kernel test robot <lkp@xxxxxxxxx> wrote:
>
> Hi Paul,
>
> FYI, the error/warning still remains.

I'm not sure if anyone is monitoring the kernel test robot mail, but
this issue isn't unique to the LSM/audit/io_uring patches, it appears
to be a general LSM hook issue.

> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
> head:   8006b911c90a4ec09958447d24c8a4c3538f5723
> commit: cdc1404a40461faba23c5a5ad40adcc7eecc1580 [1997/7806] lsm,io_uring: add LSM hooks to io_uring
> config: microblaze-buildonly-randconfig-r002-20211012 (attached as .config)
> compiler: microblaze-linux-gcc (GCC) 11.2.0
> reproduce (this is a W=1 build):
>         wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
>         chmod +x ~/bin/make.cross
>         # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=cdc1404a40461faba23c5a5ad40adcc7eecc1580
>         git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
>         git fetch --no-tags linux-next master
>         git checkout cdc1404a40461faba23c5a5ad40adcc7eecc1580
>         # save the attached .config to linux build tree
>         COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross ARCH=microblaze
>
> If you fix the issue, kindly add following tag as appropriate
> Reported-by: kernel test robot <lkp@xxxxxxxxx>
>
> All errors (new ones prefixed by >>):
>
> >> include/linux/lsm_hook_defs.h:408:18: error: 'uring_sqpoll_default' defined but not used [-Werror=unused-const-variable=]
>      408 | LSM_HOOK(int, 0, uring_sqpoll, void)
>          |                  ^~~~~~~~~~~~
>    security/security.c:706:32: note: in definition of macro 'LSM_RET_DEFAULT'
>      706 | #define LSM_RET_DEFAULT(NAME) (NAME##_default)
>          |                                ^~~~
>    security/security.c:711:9: note: in expansion of macro 'DECLARE_LSM_RET_DEFAULT_int'
>      711 |         DECLARE_LSM_RET_DEFAULT_##RET(DEFAULT, NAME)
>          |         ^~~~~~~~~~~~~~~~~~~~~~~~
>    include/linux/lsm_hook_defs.h:408:1: note: in expansion of macro 'LSM_HOOK'
>      408 | LSM_HOOK(int, 0, uring_sqpoll, void)
>          | ^~~~~~~~
> >> include/linux/lsm_hook_defs.h:407:18: error: 'uring_override_creds_default' defined but not used [-Werror=unused-const-variable=]
>      407 | LSM_HOOK(int, 0, uring_override_creds, const struct cred *new)
>          |                  ^~~~~~~~~~~~~~~~~~~~
>    security/security.c:706:32: note: in definition of macro 'LSM_RET_DEFAULT'
>      706 | #define LSM_RET_DEFAULT(NAME) (NAME##_default)
>          |                                ^~~~
>    security/security.c:711:9: note: in expansion of macro 'DECLARE_LSM_RET_DEFAULT_int'
>      711 |         DECLARE_LSM_RET_DEFAULT_##RET(DEFAULT, NAME)
>          |         ^~~~~~~~~~~~~~~~~~~~~~~~
>    include/linux/lsm_hook_defs.h:407:1: note: in expansion of macro 'LSM_HOOK'
>      407 | LSM_HOOK(int, 0, uring_override_creds, const struct cred *new)
>          | ^~~~~~~~
>    include/linux/lsm_hook_defs.h:396:18: error: 'locked_down_default' defined but not used [-Werror=unused-const-variable=]
>      396 | LSM_HOOK(int, 0, locked_down, enum lockdown_reason what)
>          |                  ^~~~~~~~~~~
>    security/security.c:706:32: note: in definition of macro 'LSM_RET_DEFAULT'
>      706 | #define LSM_RET_DEFAULT(NAME) (NAME##_default)
>          |                                ^~~~
>    security/security.c:711:9: note: in expansion of macro 'DECLARE_LSM_RET_DEFAULT_int'
>      711 |         DECLARE_LSM_RET_DEFAULT_##RET(DEFAULT, NAME)
>          |         ^~~~~~~~~~~~~~~~~~~~~~~~
>    include/linux/lsm_hook_defs.h:396:1: note: in expansion of macro 'LSM_HOOK'
>      396 | LSM_HOOK(int, 0, locked_down, enum lockdown_reason what)
>          | ^~~~~~~~
>    include/linux/lsm_hook_defs.h:392:18: error: 'bpf_prog_alloc_security_default' defined but not used [-Werror=unused-const-variable=]
>      392 | LSM_HOOK(int, 0, bpf_prog_alloc_security, struct bpf_prog_aux *aux)
>          |                  ^~~~~~~~~~~~~~~~~~~~~~~
>    security/security.c:706:32: note: in definition of macro 'LSM_RET_DEFAULT'
>      706 | #define LSM_RET_DEFAULT(NAME) (NAME##_default)
>          |                                ^~~~
>    security/security.c:711:9: note: in expansion of macro 'DECLARE_LSM_RET_DEFAULT_int'
>      711 |         DECLARE_LSM_RET_DEFAULT_##RET(DEFAULT, NAME)
>          |         ^~~~~~~~~~~~~~~~~~~~~~~~
>    include/linux/lsm_hook_defs.h:392:1: note: in expansion of macro 'LSM_HOOK'
>      392 | LSM_HOOK(int, 0, bpf_prog_alloc_security, struct bpf_prog_aux *aux)
>          | ^~~~~~~~
>    include/linux/lsm_hook_defs.h:390:18: error: 'bpf_map_alloc_security_default' defined but not used [-Werror=unused-const-variable=]
>      390 | LSM_HOOK(int, 0, bpf_map_alloc_security, struct bpf_map *map)
>          |                  ^~~~~~~~~~~~~~~~~~~~~~
>    security/security.c:706:32: note: in definition of macro 'LSM_RET_DEFAULT'
>      706 | #define LSM_RET_DEFAULT(NAME) (NAME##_default)
>          |                                ^~~~
>    security/security.c:711:9: note: in expansion of macro 'DECLARE_LSM_RET_DEFAULT_int'
>      711 |         DECLARE_LSM_RET_DEFAULT_##RET(DEFAULT, NAME)
>          |         ^~~~~~~~~~~~~~~~~~~~~~~~
>    include/linux/lsm_hook_defs.h:390:1: note: in expansion of macro 'LSM_HOOK'
>      390 | LSM_HOOK(int, 0, bpf_map_alloc_security, struct bpf_map *map)
>          | ^~~~~~~~
>    include/linux/lsm_hook_defs.h:389:18: error: 'bpf_prog_default' defined but not used [-Werror=unused-const-variable=]
>      389 | LSM_HOOK(int, 0, bpf_prog, struct bpf_prog *prog)
>          |                  ^~~~~~~~
>    security/security.c:706:32: note: in definition of macro 'LSM_RET_DEFAULT'
>      706 | #define LSM_RET_DEFAULT(NAME) (NAME##_default)
>          |                                ^~~~
>    security/security.c:711:9: note: in expansion of macro 'DECLARE_LSM_RET_DEFAULT_int'
>      711 |         DECLARE_LSM_RET_DEFAULT_##RET(DEFAULT, NAME)
>          |         ^~~~~~~~~~~~~~~~~~~~~~~~
>    include/linux/lsm_hook_defs.h:389:1: note: in expansion of macro 'LSM_HOOK'
>      389 | LSM_HOOK(int, 0, bpf_prog, struct bpf_prog *prog)
>          | ^~~~~~~~
>    include/linux/lsm_hook_defs.h:388:18: error: 'bpf_map_default' defined but not used [-Werror=unused-const-variable=]
>      388 | LSM_HOOK(int, 0, bpf_map, struct bpf_map *map, fmode_t fmode)
>          |                  ^~~~~~~
>    security/security.c:706:32: note: in definition of macro 'LSM_RET_DEFAULT'
>      706 | #define LSM_RET_DEFAULT(NAME) (NAME##_default)
>          |                                ^~~~
>    security/security.c:711:9: note: in expansion of macro 'DECLARE_LSM_RET_DEFAULT_int'
>      711 |         DECLARE_LSM_RET_DEFAULT_##RET(DEFAULT, NAME)
>          |         ^~~~~~~~~~~~~~~~~~~~~~~~
>    include/linux/lsm_hook_defs.h:388:1: note: in expansion of macro 'LSM_HOOK'
>      388 | LSM_HOOK(int, 0, bpf_map, struct bpf_map *map, fmode_t fmode)
>          | ^~~~~~~~
>    include/linux/lsm_hook_defs.h:387:18: error: 'bpf_default' defined but not used [-Werror=unused-const-variable=]
>      387 | LSM_HOOK(int, 0, bpf, int cmd, union bpf_attr *attr, unsigned int size)
>          |                  ^~~
>    security/security.c:706:32: note: in definition of macro 'LSM_RET_DEFAULT'
>      706 | #define LSM_RET_DEFAULT(NAME) (NAME##_default)
>          |                                ^~~~
>    security/security.c:711:9: note: in expansion of macro 'DECLARE_LSM_RET_DEFAULT_int'
>      711 |         DECLARE_LSM_RET_DEFAULT_##RET(DEFAULT, NAME)
>          |         ^~~~~~~~~~~~~~~~~~~~~~~~
>    include/linux/lsm_hook_defs.h:387:1: note: in expansion of macro 'LSM_HOOK'
>      387 | LSM_HOOK(int, 0, bpf, int cmd, union bpf_attr *attr, unsigned int size)
>          | ^~~~~~~~
>    include/linux/lsm_hook_defs.h:382:18: error: 'audit_rule_match_default' defined but not used [-Werror=unused-const-variable=]
>      382 | LSM_HOOK(int, 0, audit_rule_match, u32 secid, u32 field, u32 op, void *lsmrule)
>          |                  ^~~~~~~~~~~~~~~~
>    security/security.c:706:32: note: in definition of macro 'LSM_RET_DEFAULT'
>      706 | #define LSM_RET_DEFAULT(NAME) (NAME##_default)
>          |                                ^~~~
>    security/security.c:711:9: note: in expansion of macro 'DECLARE_LSM_RET_DEFAULT_int'
>      711 |         DECLARE_LSM_RET_DEFAULT_##RET(DEFAULT, NAME)
>          |         ^~~~~~~~~~~~~~~~~~~~~~~~
>    include/linux/lsm_hook_defs.h:382:1: note: in expansion of macro 'LSM_HOOK'
>      382 | LSM_HOOK(int, 0, audit_rule_match, u32 secid, u32 field, u32 op, void *lsmrule)
>          | ^~~~~~~~
>    include/linux/lsm_hook_defs.h:381:18: error: 'audit_rule_known_default' defined but not used [-Werror=unused-const-variable=]
>      381 | LSM_HOOK(int, 0, audit_rule_known, struct audit_krule *krule)
>          |                  ^~~~~~~~~~~~~~~~
>    security/security.c:706:32: note: in definition of macro 'LSM_RET_DEFAULT'
>      706 | #define LSM_RET_DEFAULT(NAME) (NAME##_default)
>
>
> vim +/uring_sqpoll_default +408 include/linux/lsm_hook_defs.h
>
>    405
>    406  #ifdef CONFIG_IO_URING
>  > 407  LSM_HOOK(int, 0, uring_override_creds, const struct cred *new)
>  > 408  LSM_HOOK(int, 0, uring_sqpoll, void)
>
> ---
> 0-DAY CI Kernel Test Service, Intel Corporation
> https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx



-- 
paul moore
www.paul-moore.com




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