Re: [PATCH] ipc: Convert kern_ipc_perm.refcount to refcount_t

[kbuild test robot]

Hi Elena,

[auto build test ERROR on next-20170526]
[cannot apply to linus/master linux/master kees/for-next/pstore v4.9-rc8 v4.9-rc7 v4.9-rc6 v4.12-rc2]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Kees-Cook/ipc-Convert-kern_ipc_perm-refcount-to-refcount_t/20170528-040601
config: x86_64-randconfig-x019-201722 (attached as .config)
compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901
reproduce:
        # save the attached .config to linux build tree
        make ARCH=x86_64 

All errors (new ones prefixed by >>):

   In file included from include/uapi/linux/sem.h:4:0,
                    from include/linux/sem.h:7,
                    from include/linux/sched.h:14,
                    from include/linux/uaccess.h:4,
                    from include/linux/crypto.h:26,
                    from arch/x86/kernel/asm-offsets.c:8:
>> include/linux/ipc.h:25:2: error: unknown type name 'refcount_t'
     refcount_t refcount;
     ^~~~~~~~~~
   make[2]: *** [arch/x86/kernel/asm-offsets.s] Error 1
   make[2]: Target '__build' not remade because of errors.
   make[1]: *** [prepare0] Error 2
   make[1]: Target 'prepare' not remade because of errors.
   make: *** [sub-make] Error 2

vim +/refcount_t +25 include/linux/ipc.h

    19		kgid_t		cgid;
    20		umode_t		mode;
    21		unsigned long	seq;
    22		void		*security;
    23	
    24		struct rcu_head rcu;
  > 25		refcount_t	refcount;
    26	} ____cacheline_aligned_in_smp;
    27	
    28	#endif /* _LINUX_IPC_H */

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