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Date:   Sun, 9 Aug 2020 02:50:49 +0800
From:   kernel test robot <lkp@...el.com>
To:     Luc Van Oostenryck <luc.vanoostenryck@...il.com>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org
Subject: fs/coda/psdev.c:79:24: sparse: sparse: incorrect type in initializer
 (different address spaces)

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   449dc8c97089a6e09fb2dac4d92b1b7ac0eb7c1e
commit: 670d0a4b10704667765f7d18f7592993d02783aa sparse: use identifiers to define address spaces
date:   7 weeks ago
config: openrisc-randconfig-s032-20200809 (attached as .config)
compiler: or1k-linux-gcc (GCC) 9.3.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # apt-get install sparse
        # sparse version: v0.6.2-118-ge1578773-dirty
        git checkout 670d0a4b10704667765f7d18f7592993d02783aa
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=openrisc 

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


sparse warnings: (new ones prefixed by >>)

>> fs/coda/psdev.c:79:24: sparse: sparse: incorrect type in initializer (different address spaces) @@     expected int *__pu_addr @@     got int [noderef] __user * @@
   fs/coda/psdev.c:79:24: sparse:     expected int *__pu_addr
>> fs/coda/psdev.c:79:24: sparse:     got int [noderef] __user *
   fs/coda/psdev.c: note: in included file (through include/linux/sched/task.h, include/linux/sched/signal.h):
   include/linux/uaccess.h:131:38: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void *to @@     got void [noderef] __user *to @@
   include/linux/uaccess.h:131:38: sparse:     expected void *to
   include/linux/uaccess.h:131:38: sparse:     got void [noderef] __user *to
   include/linux/uaccess.h:131:42: sparse: sparse: incorrect type in argument 2 (different address spaces) @@     expected void const [noderef] __user *from @@     got void const *from @@
   include/linux/uaccess.h:131:42: sparse:     expected void const [noderef] __user *from
   include/linux/uaccess.h:131:42: sparse:     got void const *from
   fs/coda/psdev.c: note: in included file (through include/linux/uaccess.h, include/linux/sched/task.h, include/linux/sched/signal.h):
   arch/openrisc/include/asm/uaccess.h:246:55: sparse: sparse: incorrect type in argument 2 (different address spaces) @@     expected void const *from @@     got void const [noderef] __user *from @@
   arch/openrisc/include/asm/uaccess.h:246:55: sparse:     expected void const *from
   arch/openrisc/include/asm/uaccess.h:246:55: sparse:     got void const [noderef] __user *from
--
   security/smack/smack_lsm.c:1776:61: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected struct cred const *cred @@     got struct cred const [noderef] __rcu *cred @@
   security/smack/smack_lsm.c:1776:61: sparse:     expected struct cred const *cred
   security/smack/smack_lsm.c:1776:61: sparse:     got struct cred const [noderef] __rcu *cred
   security/smack/smack_lsm.c:2494:27: sparse: sparse: incorrect type in assignment (different base types) @@     expected restricted __be16 [usertype] dport @@     got unsigned short [usertype] @@
   security/smack/smack_lsm.c:2494:27: sparse:     expected restricted __be16 [usertype] dport
   security/smack/smack_lsm.c:2494:27: sparse:     got unsigned short [usertype]
>> security/smack/smack_lsm.c:3955:13: sparse: sparse: incorrect type in initializer (different address spaces) @@     expected int *__pu_addr @@     got int [noderef] __user *optlen @@
   security/smack/smack_lsm.c:3955:13: sparse:     expected int *__pu_addr
>> security/smack/smack_lsm.c:3955:13: sparse:     got int [noderef] __user *optlen
   security/smack/smack_lsm.c:4839:30: sparse: sparse: cast removes address space '__rcu' of expression
   security/smack/smack_lsm.c: note: in included file (through include/linux/sched/task.h, include/linux/sched/signal.h, include/linux/rcuwait.h, ...):
   include/linux/uaccess.h:131:38: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void *to @@     got void [noderef] __user *to @@
   include/linux/uaccess.h:131:38: sparse:     expected void *to
   include/linux/uaccess.h:131:38: sparse:     got void [noderef] __user *to
   include/linux/uaccess.h:131:42: sparse: sparse: incorrect type in argument 2 (different address spaces) @@     expected void const [noderef] __user *from @@     got void const *from @@
   include/linux/uaccess.h:131:42: sparse:     expected void const [noderef] __user *from
   include/linux/uaccess.h:131:42: sparse:     got void const *from
   security/smack/smack_lsm.c: note: in included file (through include/linux/uaccess.h, include/linux/sched/task.h, include/linux/sched/signal.h, ...):
   arch/openrisc/include/asm/uaccess.h:246:55: sparse: sparse: incorrect type in argument 2 (different address spaces) @@     expected void const *from @@     got void const [noderef] __user *from @@
   arch/openrisc/include/asm/uaccess.h:246:55: sparse:     expected void const *from
   arch/openrisc/include/asm/uaccess.h:246:55: sparse:     got void const [noderef] __user *from
--
>> net/sched/act_bpf.c:132:35: sparse: sparse: incorrect type in argument 2 (different address spaces) @@     expected void const *src @@     got unsigned char [noderef] __rcu * @@
   net/sched/act_bpf.c:132:35: sparse:     expected void const *src
   net/sched/act_bpf.c:132:35: sparse:     got unsigned char [noderef] __rcu *
   net/sched/act_bpf.c:125:50: sparse: sparse: dereference of noderef expression
   net/sched/act_bpf.c:125:50: sparse: sparse: dereference of noderef expression
--
>> net/atm/mpoa_proc.c:223:21: sparse: sparse: incorrect type in initializer (different address spaces) @@     expected char const *__gu_addr @@     got char const [noderef] __user * @@
   net/atm/mpoa_proc.c:223:21: sparse:     expected char const *__gu_addr
>> net/atm/mpoa_proc.c:223:21: sparse:     got char const [noderef] __user *
--
>> net/l2tp/l2tp_ip.c:593:16: sparse: sparse: incorrect type in initializer (different address spaces) @@     expected int *__pu_addr @@     got int [noderef] __user * @@
   net/l2tp/l2tp_ip.c:593:16: sparse:     expected int *__pu_addr
>> net/l2tp/l2tp_ip.c:593:16: sparse:     got int [noderef] __user *
   net/l2tp/l2tp_ip.c: note: in included file (through include/asm-generic/atomic.h, arch/openrisc/include/asm/atomic.h, include/linux/atomic.h, ...):
   arch/openrisc/include/asm/cmpxchg.h:101:29: sparse: sparse: shift too big (32) for type int

vim +79 fs/coda/psdev.c

^1da177e4c3f41 Linus Torvalds 2005-04-16  71  
977183902a52d1 Arnd Bergmann  2010-04-27  72  static long coda_psdev_ioctl(struct file * filp, unsigned int cmd, unsigned long arg)
^1da177e4c3f41 Linus Torvalds 2005-04-16  73  {
^1da177e4c3f41 Linus Torvalds 2005-04-16  74  	unsigned int data;
^1da177e4c3f41 Linus Torvalds 2005-04-16  75  
^1da177e4c3f41 Linus Torvalds 2005-04-16  76  	switch(cmd) {
^1da177e4c3f41 Linus Torvalds 2005-04-16  77  	case CIOC_KERNEL_VERSION:
^1da177e4c3f41 Linus Torvalds 2005-04-16  78  		data = CODA_KERNEL_VERSION;
^1da177e4c3f41 Linus Torvalds 2005-04-16 @79  		return put_user(data, (int __user *) arg);
^1da177e4c3f41 Linus Torvalds 2005-04-16  80  	default:
^1da177e4c3f41 Linus Torvalds 2005-04-16  81  		return -ENOTTY;
^1da177e4c3f41 Linus Torvalds 2005-04-16  82  	}
^1da177e4c3f41 Linus Torvalds 2005-04-16  83  
^1da177e4c3f41 Linus Torvalds 2005-04-16  84  	return 0;
^1da177e4c3f41 Linus Torvalds 2005-04-16  85  }
^1da177e4c3f41 Linus Torvalds 2005-04-16  86  

:::::: The code at line 79 was first introduced by commit
:::::: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Linux-2.6.12-rc2

:::::: TO: Linus Torvalds <torvalds@...970.osdl.org>
:::::: CC: Linus Torvalds <torvalds@...970.osdl.org>

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

Download attachment ".config.gz" of type "application/gzip" (28954 bytes)

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