linux-kernel - Re: [PATCH 01/19] kernel: convert sighand_struct.count from atomic_t to refcount

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Date:   Mon, 20 Feb 2017 20:42:45 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Elena Reshetova <elena.reshetova@...el.com>
Cc:     kbuild-all@...org, linux-kernel@...r.kernel.org,
        cgroups@...r.kernel.org, linux-audit@...hat.com,
        linux-fsdevel@...r.kernel.org, peterz@...radead.org,
        gregkh@...uxfoundation.org, viro@...iv.linux.org.uk, tj@...nel.org,
        mingo@...hat.com, hannes@...xchg.org, lizefan@...wei.com,
        acme@...nel.org, alexander.shishkin@...ux.intel.com,
        paul@...l-moore.com, eparis@...hat.com, akpm@...ux-foundation.org,
        arnd@...db.de, luto@...nel.org,
        Elena Reshetova <elena.reshetova@...el.com>,
        Hans Liljestrand <ishkamiel@...il.com>,
        Kees Cook <keescook@...omium.org>,
        David Windsor <dwindsor@...il.com>
Subject: Re: [PATCH 01/19] kernel: convert sighand_struct.count from atomic_t
 to refcount_t

Hi Elena,

[auto build test ERROR on next-20170220]
[cannot apply to linus/master linux/master tip/perf/core v4.9-rc8 v4.9-rc7 v4.9-rc6]
[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/Elena-Reshetova/kernel-convert-sighand_struct-count-from-atomic_t-to-refcount_t/20170220-183434
config: blackfin-BF561-EZKIT-SMP_defconfig (attached as .config)
compiler: bfin-uclinux-gcc (GCC) 6.2.0
reproduce:
        wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        make.cross ARCH=blackfin 

All errors (new ones prefixed by >>):

   In file included from include/linux/atomic.h:4:0,
                    from arch/blackfin/include/asm/spinlock.h:14,
                    from include/linux/spinlock.h:87,
                    from include/linux/mmzone.h:7,
                    from include/linux/gfp.h:5,
                    from include/linux/mm.h:9,
                    from fs/proc/task_nommu.c:2:
   fs/proc/task_nommu.c: In function 'task_mem':
>> arch/blackfin/include/asm/atomic.h:27:53: error: 'refcount_t {aka struct refcount_struct}' has no member named 'counter'
    #define atomic_read(v) __raw_uncached_fetch_asm(&(v)->counter)
                                                        ^
   fs/proc/task_nommu.c:64:26: note: in expansion of macro 'atomic_read'
     if (current->sighand && atomic_read(&current->sighand->count) > 1)
                             ^~~~~~~~~~~

vim +27 arch/blackfin/include/asm/atomic.h

d835b6c4 arch/blackfin/include/asm/atomic.h Peter Zijlstra 2015-04-23  21  
d835b6c4 arch/blackfin/include/asm/atomic.h Peter Zijlstra 2015-04-23  22  asmlinkage int __raw_atomic_and_asm(volatile int *ptr, int value);
d835b6c4 arch/blackfin/include/asm/atomic.h Peter Zijlstra 2015-04-23  23  asmlinkage int __raw_atomic_or_asm(volatile int *ptr, int value);
6b3087c6 arch/blackfin/include/asm/atomic.h Graf Yang      2009-01-07  24  asmlinkage int __raw_atomic_xor_asm(volatile int *ptr, int value);
6b3087c6 arch/blackfin/include/asm/atomic.h Graf Yang      2009-01-07  25  asmlinkage int __raw_atomic_test_asm(const volatile int *ptr, int value);
6b3087c6 arch/blackfin/include/asm/atomic.h Graf Yang      2009-01-07  26  
ae41f32e arch/blackfin/include/asm/atomic.h Mike Frysinger 2011-06-17 @27  #define atomic_read(v) __raw_uncached_fetch_asm(&(v)->counter)
1394f032 include/asm-blackfin/atomic.h      Bryan Wu       2007-05-06  28  
d835b6c4 arch/blackfin/include/asm/atomic.h Peter Zijlstra 2015-04-23  29  #define atomic_add_return(i, v) __raw_atomic_add_asm(&(v)->counter, i)
d835b6c4 arch/blackfin/include/asm/atomic.h Peter Zijlstra 2015-04-23  30  #define atomic_sub_return(i, v) __raw_atomic_add_asm(&(v)->counter, -(i))

:::::: The code at line 27 was first introduced by commit
:::::: ae41f32e16d8e87c84cb910a6a6aefb50318894d Blackfin: SMP: convert to common asm-generic/atomic.h

:::::: TO: Mike Frysinger <vapier@...too.org>
:::::: CC: Mike Frysinger <vapier@...too.org>

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