[linux-next:master 2260/2421] security/selinux/hooks.c:216:36: sparse: sparse: incorrect type in argument 1 (different address spaces)

* [linux-next:master 2260/2421] security/selinux/hooks.c:216:36: sparse: sparse: incorrect type in argument 1 (different address spaces)
@ 2022-01-27 13:19 ` kernel test robot
  0 siblings, 0 replies; 2+ messages in thread
From: kernel test robot @ 2022-01-27 13:19 UTC (permalink / raw)
  To: Christian Göttsche
  Cc: kbuild-all, Linux Memory Management List, Paul Moore

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head:   0eb96e2c58c03e79fc2ee833ba88bf9226986564
commit: b084e189b01a7614d3098aca4f2381a759460d88 [2260/2421] selinux: simplify cred_init_security
config: x86_64-rhel-8.3-kselftests (https://download.01.org/0day-ci/archive/20220127/202201272153.o6t8kbDn-lkp@intel.com/config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce:
        # apt-get install sparse
        # sparse version: v0.6.4-dirty
        # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=b084e189b01a7614d3098aca4f2381a759460d88
        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 b084e189b01a7614d3098aca4f2381a759460d88
        # save the config file to linux build tree
        mkdir build_dir
        make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=x86_64 SHELL=/bin/bash security/selinux/

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


sparse warnings: (new ones prefixed by >>)
   security/selinux/hooks.c: note: in included file:
   include/net/sctp/structs.h:335:41: sparse: sparse: array of flexible structures
>> security/selinux/hooks.c:216:36: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected struct cred const *cred @@     got struct cred const [noderef] __rcu *real_cred @@
   security/selinux/hooks.c:216:36: sparse:     expected struct cred const *cred
   security/selinux/hooks.c:216:36: sparse:     got struct cred const [noderef] __rcu *real_cred
   security/selinux/hooks.c:2537:39: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected struct spinlock [usertype] *lock @@     got struct spinlock [noderef] __rcu * @@
   security/selinux/hooks.c:2537:39: sparse:     expected struct spinlock [usertype] *lock
   security/selinux/hooks.c:2537:39: sparse:     got struct spinlock [noderef] __rcu *
   security/selinux/hooks.c:2545:41: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected struct spinlock [usertype] *lock @@     got struct spinlock [noderef] __rcu * @@
   security/selinux/hooks.c:2545:41: sparse:     expected struct spinlock [usertype] *lock
   security/selinux/hooks.c:2545:41: sparse:     got struct spinlock [noderef] __rcu *
   security/selinux/hooks.c:2551:42: sparse: sparse: incorrect type in argument 2 (different address spaces) @@     expected struct task_struct *parent @@     got struct task_struct [noderef] __rcu *real_parent @@
   security/selinux/hooks.c:2551:42: sparse:     expected struct task_struct *parent
   security/selinux/hooks.c:2551:42: sparse:     got struct task_struct [noderef] __rcu *real_parent
   security/selinux/hooks.c:5423:22: sparse: sparse: restricted __be16 degrades to integer
   security/selinux/hooks.c:5424:22: sparse: sparse: restricted __be16 degrades to integer

vim +216 security/selinux/hooks.c

   208	
   209	/*
   210	 * initialise the security for the init task
   211	 */
   212	static void cred_init_security(void)
   213	{
   214		struct task_security_struct *tsec;
   215	
 > 216		tsec = selinux_cred(current->real_cred);
   217		tsec->osid = tsec->sid = SECINITSID_KERNEL;
   218	}
   219	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org


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