[wtarreau-prandom:prandom-5.10-v3 2/2] include/asm-generic/percpu.h:128:2: error: implicit declaration of function 'raw_local_irq_save'

[wtarreau-prandom:prandom-5.10-v3 2/2] include/asm-generic/percpu.h:128:2: error: implicit declaration of function 'raw_local_irq_save'

[kernel test robot]

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tree:   https://git.kernel.org/pub/scm/linux/kernel/git/wtarreau/prandom.git prandom-5.10-v3
head:   3486a21c7e5bafbdbc0f7ea5d40f3dad39022bf4
commit: 3486a21c7e5bafbdbc0f7ea5d40f3dad39022bf4 [2/2] random32: add noise from network and scheduling activity
config: arc-defconfig (attached as .config)
compiler: arc-elf-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://git.kernel.org/pub/scm/linux/kernel/git/wtarreau/prandom.git/commit/?id=3486a21c7e5bafbdbc0f7ea5d40f3dad39022bf4
        git remote add wtarreau-prandom https://git.kernel.org/pub/scm/linux/kernel/git/wtarreau/prandom.git
        git fetch --no-tags wtarreau-prandom prandom-5.10-v3
        git checkout 3486a21c7e5bafbdbc0f7ea5d40f3dad39022bf4
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arc 

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

All errors (new ones prefixed by >>):

   In file included from ./arch/arc/include/generated/asm/percpu.h:1,
                    from include/linux/percpu.h:13,
                    from include/linux/prandom.h:12,
                    from include/linux/random.h:118,
                    from include/linux/net.h:18,
                    from fs/nfs/mount_clnt.c:13:
   include/linux/prandom.h: In function 'prandom_u32_add_noise':
>> include/asm-generic/percpu.h:128:2: error: implicit declaration of function 'raw_local_irq_save' [-Werror=implicit-function-declaration]
     128 |  raw_local_irq_save(__flags);     \
         |  ^~~~~~~~~~~~~~~~~~
   include/asm-generic/percpu.h:140:11: note: in expansion of macro '__this_cpu_generic_read_noirq'
     140 |   __ret = __this_cpu_generic_read_noirq(pcp);  \
         |           ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/asm-generic/percpu.h:320:31: note: in expansion of macro 'this_cpu_generic_read'
     320 | #define this_cpu_read_1(pcp)  this_cpu_generic_read(pcp)
         |                               ^~~~~~~~~~~~~~~~~~~~~
   include/linux/percpu-defs.h:321:23: note: in expansion of macro 'this_cpu_read_1'
     321 |  case 1: pscr_ret__ = stem##1(variable); break;   \
         |                       ^~~~
   include/linux/percpu-defs.h:507:29: note: in expansion of macro '__pcpu_size_call_return'
     507 | #define this_cpu_read(pcp)  __pcpu_size_call_return(this_cpu_read_, pcp)
         |                             ^~~~~~~~~~~~~~~~~~~~~~~
   include/linux/prandom.h:66:7: note: in expansion of macro 'this_cpu_read'
      66 |  a ^= this_cpu_read(net_rand_noise);
         |       ^~~~~~~~~~~~~
>> include/asm-generic/percpu.h:130:2: error: implicit declaration of function 'raw_local_irq_restore' [-Werror=implicit-function-declaration]
     130 |  raw_local_irq_restore(__flags);     \
         |  ^~~~~~~~~~~~~~~~~~~~~
   include/asm-generic/percpu.h:140:11: note: in expansion of macro '__this_cpu_generic_read_noirq'
     140 |   __ret = __this_cpu_generic_read_noirq(pcp);  \
         |           ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/asm-generic/percpu.h:320:31: note: in expansion of macro 'this_cpu_generic_read'
     320 | #define this_cpu_read_1(pcp)  this_cpu_generic_read(pcp)
         |                               ^~~~~~~~~~~~~~~~~~~~~
   include/linux/percpu-defs.h:321:23: note: in expansion of macro 'this_cpu_read_1'
     321 |  case 1: pscr_ret__ = stem##1(variable); break;   \
         |                       ^~~~
   include/linux/percpu-defs.h:507:29: note: in expansion of macro '__pcpu_size_call_return'
     507 | #define this_cpu_read(pcp)  __pcpu_size_call_return(this_cpu_read_, pcp)
         |                             ^~~~~~~~~~~~~~~~~~~~~~~
   include/linux/prandom.h:66:7: note: in expansion of macro 'this_cpu_read'
      66 |  a ^= this_cpu_read(net_rand_noise);
         |       ^~~~~~~~~~~~~
   cc1: some warnings being treated as errors

vim +/raw_local_irq_save +128 include/asm-generic/percpu.h

9c28278a24c01c0 Tejun Heo    2014-06-17  123  
e88d62cd4b2f0b1 Mark Rutland 2017-09-26  124  #define __this_cpu_generic_read_noirq(pcp)				\
e88d62cd4b2f0b1 Mark Rutland 2017-09-26  125  ({									\
e88d62cd4b2f0b1 Mark Rutland 2017-09-26  126  	typeof(pcp) __ret;						\
e88d62cd4b2f0b1 Mark Rutland 2017-09-26  127  	unsigned long __flags;						\
e88d62cd4b2f0b1 Mark Rutland 2017-09-26 @128  	raw_local_irq_save(__flags);					\
e88d62cd4b2f0b1 Mark Rutland 2017-09-26  129  	__ret = raw_cpu_generic_read(pcp);				\
e88d62cd4b2f0b1 Mark Rutland 2017-09-26 @130  	raw_local_irq_restore(__flags);					\
e88d62cd4b2f0b1 Mark Rutland 2017-09-26  131  	__ret;								\
e88d62cd4b2f0b1 Mark Rutland 2017-09-26  132  })
e88d62cd4b2f0b1 Mark Rutland 2017-09-26  133  

:::::: The code at line 128 was first introduced by commit
:::::: e88d62cd4b2f0b1ae55e9008e79c2794b1fc914d percpu: make this_cpu_generic_read() atomic w.r.t. interrupts

:::::: TO: Mark Rutland <mark.rutland@arm.com>
:::::: CC: Tejun Heo <tj@kernel.org>

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

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