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Message-ID: <201510030217.xqhLjnfK%fengguang.wu@intel.com>
Date:	Sat, 3 Oct 2015 02:05:58 +0800
From:	kbuild test robot <lkp@...el.com>
To:	Waiman Long <Waiman.Long@....com>
Cc:	kbuild-all@...org, Dave Chinner <david@...morbit.com>,
	Tejun Heo <tj@...nel.org>,
	Christoph Lameter <cl@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, xfs@....sgi.com,
	Scott J Norton <scott.norton@....com>,
	Douglas Hatch <doug.hatch@....com>,
	Waiman Long <Waiman.Long@....com>
Subject: Re: [PATCH] percpu_counter: return precise count from
 __percpu_counter_compare()

Hi Waiman,

[auto build test results on v4.3-rc3 -- if it's inappropriate base, please ignore]

config: i386-alldefconfig (attached as .config)
reproduce:
        # save the attached .config to linux build tree
        make ARCH=i386 

All error/warnings (new ones prefixed by >>):

   In file included from include/linux/proportions.h:12:0,
                    from include/linux/sched.h:43,
                    from include/linux/uaccess.h:4,
                    from include/linux/crypto.h:26,
                    from arch/x86/kernel/asm-offsets.c:8:
   include/linux/percpu_counter.h: In function '__percpu_counter_compare':
   include/linux/percpu_counter.h:126:30: error: expected declaration specifiers before ')' token
            s32 batch, s64 *pcnt))
                                 ^
   include/linux/percpu_counter.h:133:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
    {
    ^
   include/linux/percpu_counter.h:141:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
    {
    ^
   include/linux/percpu_counter.h:146:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
    {
    ^
   include/linux/percpu_counter.h:155:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
    {
    ^
   include/linux/percpu_counter.h:160:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
    {
    ^
   include/linux/percpu_counter.h:165:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
    {
    ^
   include/linux/percpu_counter.h:170:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
    {
    ^
   include/linux/percpu_counter.h:177:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
    {
    ^
   include/linux/percpu_counter.h:182:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
    {
    ^
   include/linux/percpu_counter.h:187:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
    {
    ^
   In file included from include/linux/sched.h:43:0,
                    from include/linux/uaccess.h:4,
                    from include/linux/crypto.h:26,
                    from arch/x86/kernel/asm-offsets.c:8:
   include/linux/proportions.h:17:1: warning: empty declaration
    struct prop_global {
    ^
   include/linux/proportions.h:38:1: warning: empty declaration
    struct prop_descriptor {
    ^
   include/linux/proportions.h:51:1: warning: empty declaration
    struct prop_local_percpu {
    ^
   include/linux/proportions.h:73:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
    {
    ^
   include/linux/proportions.h:102:1: warning: empty declaration
    struct prop_local_single {
    ^
   include/linux/proportions.h:129:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
    {
    ^
   In file included from include/linux/seccomp.h:4:0,
                    from include/linux/sched.h:44,
                    from include/linux/uaccess.h:4,
                    from include/linux/crypto.h:26,
                    from arch/x86/kernel/asm-offsets.c:8:
   include/uapi/linux/seccomp.h:47:1: warning: empty declaration
    struct seccomp_data {
    ^
   In file included from include/linux/sched.h:44:0,
                    from include/linux/uaccess.h:4,
                    from include/linux/crypto.h:26,
                    from arch/x86/kernel/asm-offsets.c:8:
   include/linux/seccomp.h:13:1: warning: empty declaration
    struct seccomp_filter;
    ^
   include/linux/seccomp.h:25:1: warning: empty declaration
    struct seccomp {
    ^
>> include/linux/seccomp.h:31:12: error: storage class specified for parameter '__secure_computing'
    extern int __secure_computing(void);
               ^
   include/linux/seccomp.h:33:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
    {
    ^
>> include/linux/seccomp.h:42:12: error: storage class specified for parameter 'seccomp_phase1'
    extern u32 seccomp_phase1(struct seccomp_data *sd);
               ^
>> include/linux/seccomp.h:48:13: error: storage class specified for parameter 'prctl_get_seccomp'
    extern long prctl_get_seccomp(void);
                ^
>> include/linux/seccomp.h:49:13: error: storage class specified for parameter 'prctl_set_seccomp'
    extern long prctl_set_seccomp(unsigned long, char __user *);
                ^
   include/linux/seccomp.h:52:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
    {
    ^
   include/linux/seccomp.h:90:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
    {
    ^
   include/linux/seccomp.h:94:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
    {
    ^
   In file included from include/linux/sched.h:46:0,
                    from include/linux/uaccess.h:4,
                    from include/linux/crypto.h:26,
                    from arch/x86/kernel/asm-offsets.c:8:
   include/linux/rculist.h:31:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
    {
    ^
   include/linux/rculist.h:51:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
    {
    ^
   include/linux/rculist.h:79:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
    {
    ^
   include/linux/rculist.h:101:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
    {
    ^
   include/linux/rculist.h:130:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
    {
    ^
   include/linux/rculist.h:156:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
    {
    ^
   include/linux/rculist.h:173:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
    {
    ^
   include/linux/rculist.h:201:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
    {
    ^
   include/linux/rculist.h:344:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
    {
    ^
   include/linux/rculist.h:358:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
    {
    ^
   include/linux/rculist.h:397:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
    {
    ^
   include/linux/rculist.h:427:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
    {
    ^
   include/linux/rculist.h:454:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
    {
    ^
   In file included from include/linux/sched.h:47:0,
                    from include/linux/uaccess.h:4,
                    from include/linux/crypto.h:26,
                    from arch/x86/kernel/asm-offsets.c:8:
   include/linux/rtmutex.h:19:12: error: storage class specified for parameter 'max_lock_depth'
    extern int max_lock_depth; /* for sysctl */
               ^
   include/linux/rtmutex.h:29:1: warning: empty declaration
    struct rt_mutex {
    ^
   include/linux/rtmutex.h:42:1: warning: empty declaration
    struct rt_mutex_waiter;
    ^
   include/linux/rtmutex.h:43:1: warning: empty declaration
    struct hrtimer_sleeper;
    ^
   include/linux/rtmutex.h:52:2: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
     {
     ^
   include/linux/rtmutex.h:85:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
    {
    ^
   include/linux/rtmutex.h:89:13: error: storage class specified for parameter '__rt_mutex_init'
    extern void __rt_mutex_init(struct rt_mutex *lock, const char *name);
                ^
   include/linux/rtmutex.h:90:13: error: storage class specified for parameter 'rt_mutex_destroy'
    extern void rt_mutex_destroy(struct rt_mutex *lock);
                ^
   include/linux/rtmutex.h:92:13: error: storage class specified for parameter 'rt_mutex_lock'
    extern void rt_mutex_lock(struct rt_mutex *lock);
                ^
   include/linux/rtmutex.h:93:12: error: storage class specified for parameter 'rt_mutex_lock_interruptible'
    extern int rt_mutex_lock_interruptible(struct rt_mutex *lock);
               ^
   include/linux/rtmutex.h:94:12: error: storage class specified for parameter 'rt_mutex_timed_lock'
    extern int rt_mutex_timed_lock(struct rt_mutex *lock,
               ^
   include/linux/rtmutex.h:97:12: error: storage class specified for parameter 'rt_mutex_trylock'
    extern int rt_mutex_trylock(struct rt_mutex *lock);
               ^
   include/linux/rtmutex.h:99:13: error: storage class specified for parameter 'rt_mutex_unlock'
    extern void rt_mutex_unlock(struct rt_mutex *lock);
                ^
   In file included from include/linux/resource.h:4:0,
                    from include/linux/sched.h:51,
                    from include/linux/uaccess.h:4,

vim +/__secure_computing +31 include/linux/seccomp.h

c2e1f2e30 Kees Cook        2014-06-05   7  
^1da177e4 Linus Torvalds   2005-04-16   8  #ifdef CONFIG_SECCOMP
^1da177e4 Linus Torvalds   2005-04-16   9  
^1da177e4 Linus Torvalds   2005-04-16  10  #include <linux/thread_info.h>
^1da177e4 Linus Torvalds   2005-04-16  11  #include <asm/seccomp.h>
^1da177e4 Linus Torvalds   2005-04-16  12  
e2cfabdfd Will Drewry      2012-04-12 @13  struct seccomp_filter;
e2cfabdfd Will Drewry      2012-04-12  14  /**
e2cfabdfd Will Drewry      2012-04-12  15   * struct seccomp - the state of a seccomp'ed process
e2cfabdfd Will Drewry      2012-04-12  16   *
e2cfabdfd Will Drewry      2012-04-12  17   * @mode:  indicates one of the valid values above for controlled
e2cfabdfd Will Drewry      2012-04-12  18   *         system calls available to a process.
dbd952127 Kees Cook        2014-06-27  19   * @filter: must always point to a valid seccomp-filter or NULL as it is
dbd952127 Kees Cook        2014-06-27  20   *          accessed without locking during system call entry.
e2cfabdfd Will Drewry      2012-04-12  21   *
e2cfabdfd Will Drewry      2012-04-12  22   *          @filter must only be accessed from the context of current as there
dbd952127 Kees Cook        2014-06-27  23   *          is no read locking.
e2cfabdfd Will Drewry      2012-04-12  24   */
932ecebb0 Will Drewry      2012-04-12 @25  struct seccomp {
932ecebb0 Will Drewry      2012-04-12  26  	int mode;
e2cfabdfd Will Drewry      2012-04-12  27  	struct seccomp_filter *filter;
932ecebb0 Will Drewry      2012-04-12  28  };
^1da177e4 Linus Torvalds   2005-04-16  29  
a4412fc94 Andy Lutomirski  2014-07-21  30  #ifdef CONFIG_HAVE_ARCH_SECCOMP_FILTER
a4412fc94 Andy Lutomirski  2014-07-21 @31  extern int __secure_computing(void);
a4412fc94 Andy Lutomirski  2014-07-21  32  static inline int secure_computing(void)
^1da177e4 Linus Torvalds   2005-04-16 @33  {
^1da177e4 Linus Torvalds   2005-04-16  34  	if (unlikely(test_thread_flag(TIF_SECCOMP)))
a4412fc94 Andy Lutomirski  2014-07-21  35  		return  __secure_computing();
acf3b2c71 Will Drewry      2012-04-12  36  	return 0;
^1da177e4 Linus Torvalds   2005-04-16  37  }
13aa72f0f Andy Lutomirski  2014-07-21  38  
13aa72f0f Andy Lutomirski  2014-07-21  39  #define SECCOMP_PHASE1_OK	0
13aa72f0f Andy Lutomirski  2014-07-21  40  #define SECCOMP_PHASE1_SKIP	1
13aa72f0f Andy Lutomirski  2014-07-21  41  
d39bd00de Andy Lutomirski  2014-07-21 @42  extern u32 seccomp_phase1(struct seccomp_data *sd);
13aa72f0f Andy Lutomirski  2014-07-21  43  int seccomp_phase2(u32 phase1_result);
a4412fc94 Andy Lutomirski  2014-07-21  44  #else
a4412fc94 Andy Lutomirski  2014-07-21  45  extern void secure_computing_strict(int this_syscall);
a4412fc94 Andy Lutomirski  2014-07-21  46  #endif
e4da89d02 Will Drewry      2012-04-17  47  
1d9d02fee Andrea Arcangeli 2007-07-15 @48  extern long prctl_get_seccomp(void);
e2cfabdfd Will Drewry      2012-04-12 @49  extern long prctl_set_seccomp(unsigned long, char __user *);
1d9d02fee Andrea Arcangeli 2007-07-15  50  
932ecebb0 Will Drewry      2012-04-12  51  static inline int seccomp_mode(struct seccomp *s)
5cec93c21 Andy Lutomirski  2011-06-05  52  {

:::::: The code at line 31 was first introduced by commit
:::::: a4412fc9486ec85686c6c7929e7e829f62ae377e seccomp,x86,arm,mips,s390: Remove nr parameter from secure_computing

:::::: TO: Andy Lutomirski <luto@...capital.net>
:::::: CC: Kees Cook <keescook@...omium.org>

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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