Re: [PATCH v31 26/28] Audit: Add record for multiple object security contexts

From: kernel test robot <lkp@intel.com>
To: Casey Schaufler <casey@schaufler-ca.com>,
	casey.schaufler@intel.com, jmorris@namei.org,
	linux-security-module@vger.kernel.org, selinux@vger.kernel.org
Cc: kbuild-all@lists.01.org, casey@schaufler-ca.com,
	linux-audit@redhat.com, keescook@chromium.org,
	john.johansen@canonical.com, penguin-kernel@i-love.sakura.ne.jp,
	paul@paul-moore.com
Subject: Re: [PATCH v31 26/28] Audit: Add record for multiple object security contexts
Date: Tue, 14 Dec 2021 21:22:52 +0800	[thread overview]
Message-ID: <202112142146.BpckyASr-lkp@intel.com> (raw)
In-Reply-To: <20211213234034.111891-27-casey@schaufler-ca.com>

Hi Casey,

I love your patch! Yet something to improve:

[auto build test ERROR on nf-next/master]
[cannot apply to pcmoore-audit/next nf/master linus/master jmorris-security/next-testing v5.16-rc5]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:    https://github.com/0day-ci/linux/commits/Casey-Schaufler/integrity-disassociate-ima_filter_rule-from-security_audit_rule/20211214-084057
base:   https://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next.git master
config: i386-tinyconfig (https://download.01.org/0day-ci/archive/20211214/202112142146.BpckyASr-lkp@intel.com/config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build):
        # https://github.com/0day-ci/linux/commit/2a62f660ff9d766a192fda713edfa3ea129efdee
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Casey-Schaufler/integrity-disassociate-ima_filter_rule-from-security_audit_rule/20211214-084057
        git checkout 2a62f660ff9d766a192fda713edfa3ea129efdee
        # save the config file to linux build tree
        mkdir build_dir
        make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

   In file included from init/init_task.c:12:
>> include/linux/audit.h:262:1: error: expected identifier or '(' before '{' token
     262 | { }
         | ^
   include/linux/audit.h:260:20: warning: 'audit_log_object_context' declared 'static' but never defined [-Wunused-function]
     260 | static inline void audit_log_object_context(struct audit_buffer *ab,
         |                    ^~~~~~~~~~~~~~~~~~~~~~~~
--
   In file included from kernel/exit.c:49:
>> include/linux/audit.h:262:1: error: expected identifier or '(' before '{' token
     262 | { }
         | ^
   kernel/exit.c:1817:13: warning: no previous prototype for 'abort' [-Wmissing-prototypes]
    1817 | __weak void abort(void)
         |             ^~~~~
   In file included from kernel/exit.c:49:
   include/linux/audit.h:260:20: warning: 'audit_log_object_context' declared 'static' but never defined [-Wunused-function]
     260 | static inline void audit_log_object_context(struct audit_buffer *ab,
         |                    ^~~~~~~~~~~~~~~~~~~~~~~~
--
   In file included from fs/pipe.c:23:
>> include/linux/audit.h:262:1: error: expected identifier or '(' before '{' token
     262 | { }
         | ^
   fs/pipe.c:755:15: warning: no previous prototype for 'account_pipe_buffers' [-Wmissing-prototypes]
     755 | unsigned long account_pipe_buffers(struct user_struct *user,
         |               ^~~~~~~~~~~~~~~~~~~~
   fs/pipe.c:761:6: warning: no previous prototype for 'too_many_pipe_buffers_soft' [-Wmissing-prototypes]
     761 | bool too_many_pipe_buffers_soft(unsigned long user_bufs)
         |      ^~~~~~~~~~~~~~~~~~~~~~~~~~
   fs/pipe.c:768:6: warning: no previous prototype for 'too_many_pipe_buffers_hard' [-Wmissing-prototypes]
     768 | bool too_many_pipe_buffers_hard(unsigned long user_bufs)
         |      ^~~~~~~~~~~~~~~~~~~~~~~~~~
   fs/pipe.c:775:6: warning: no previous prototype for 'pipe_is_unprivileged_user' [-Wmissing-prototypes]
     775 | bool pipe_is_unprivileged_user(void)
         |      ^~~~~~~~~~~~~~~~~~~~~~~~~
   fs/pipe.c:1245:5: warning: no previous prototype for 'pipe_resize_ring' [-Wmissing-prototypes]
    1245 | int pipe_resize_ring(struct pipe_inode_info *pipe, unsigned int nr_slots)
         |     ^~~~~~~~~~~~~~~~
   In file included from fs/pipe.c:23:
   include/linux/audit.h:260:20: warning: 'audit_log_object_context' declared 'static' but never defined [-Wunused-function]
     260 | static inline void audit_log_object_context(struct audit_buffer *ab,
         |                    ^~~~~~~~~~~~~~~~~~~~~~~~

vim +262 include/linux/audit.h

   220	
   221	#else /* CONFIG_AUDIT */
   222	static inline __printf(4, 5)
   223	void audit_log(struct audit_context *ctx, gfp_t gfp_mask, int type,
   224		       const char *fmt, ...)
   225	{ }
   226	static inline struct audit_buffer *audit_log_start(struct audit_context *ctx,
   227							   gfp_t gfp_mask, int type)
   228	{
   229		return NULL;
   230	}
   231	static inline __printf(2, 3)
   232	void audit_log_format(struct audit_buffer *ab, const char *fmt, ...)
   233	{ }
   234	static inline void audit_log_end(struct audit_buffer *ab)
   235	{ }
   236	static inline void audit_log_n_hex(struct audit_buffer *ab,
   237					   const unsigned char *buf, size_t len)
   238	{ }
   239	static inline void audit_log_n_string(struct audit_buffer *ab,
   240					      const char *buf, size_t n)
   241	{ }
   242	static inline void  audit_log_n_untrustedstring(struct audit_buffer *ab,
   243							const char *string, size_t n)
   244	{ }
   245	static inline void audit_log_untrustedstring(struct audit_buffer *ab,
   246						     const char *string)
   247	{ }
   248	static inline void audit_log_d_path(struct audit_buffer *ab,
   249					    const char *prefix,
   250					    const struct path *path)
   251	{ }
   252	static inline void audit_log_key(struct audit_buffer *ab, char *key)
   253	{ }
   254	static inline void audit_log_path_denied(int type, const char *operation)
   255	{ }
   256	static inline int audit_log_task_context(struct audit_buffer *ab)
   257	{
   258		return 0;
   259	}
   260	static inline void audit_log_object_context(struct audit_buffer *ab,
   261						    struct lsmblob *blob);
 > 262	{ }
   263	static inline void audit_log_task_info(struct audit_buffer *ab)
   264	{ }
   265	

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