linux-kernel - [hnaz-mm:master 28/122] arch/arm64/kernel/irq.c:44:11: error: use of undeclared identifier 'irq_shadow_call_stack

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Message-ID: <202203312036.a74e2QM9-lkp@intel.com>
Date:   Thu, 31 Mar 2022 20:08:44 +0800
From:   kernel test robot <lkp@...el.com>
To:     Andrey Konovalov <andreyknvl@...gle.com>
Cc:     llvm@...ts.linux.dev, kbuild-all@...ts.01.org,
        linux-kernel@...r.kernel.org, Johannes Weiner <hannes@...xchg.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Linux Memory Management List <linux-mm@...ck.org>
Subject: [hnaz-mm:master 28/122] arch/arm64/kernel/irq.c:44:11: error: use of
 undeclared identifier 'irq_shadow_call_stack_ptr'

tree:   https://github.com/hnaz/linux-mm master
head:   074b4ea9811e2c47ae1ecada177629c19fa56d59
commit: da4561bd9c6b23e9579b85ffaced3f3b0b8dcd4c [28/122] arm64, scs: save scs_sp values per-cpu when switching stacks
config: arm64-randconfig-r012-20220331 (https://download.01.org/0day-ci/archive/20220331/202203312036.a74e2QM9-lkp@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 881350a92d821d4f8e4fa648443ed1d17e251188)
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
        # install arm64 cross compiling tool for clang build
        # apt-get install binutils-aarch64-linux-gnu
        # https://github.com/hnaz/linux-mm/commit/da4561bd9c6b23e9579b85ffaced3f3b0b8dcd4c
        git remote add hnaz-mm https://github.com/hnaz/linux-mm
        git fetch --no-tags hnaz-mm master
        git checkout da4561bd9c6b23e9579b85ffaced3f3b0b8dcd4c
        # save the config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm64 SHELL=/bin/bash arch/arm64/kernel/

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

All errors (new ones prefixed by >>):

>> arch/arm64/kernel/irq.c:44:11: error: use of undeclared identifier 'irq_shadow_call_stack_ptr'
                   per_cpu(irq_shadow_call_stack_ptr, cpu) =
                           ^
>> arch/arm64/kernel/irq.c:44:11: error: use of undeclared identifier 'irq_shadow_call_stack_ptr'
>> arch/arm64/kernel/irq.c:44:11: error: use of undeclared identifier 'irq_shadow_call_stack_ptr'
>> arch/arm64/kernel/irq.c:44:3: error: indirection requires pointer operand ('void' invalid)
                   per_cpu(irq_shadow_call_stack_ptr, cpu) =
                   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/percpu-defs.h:269:28: note: expanded from macro 'per_cpu'
   #define per_cpu(var, cpu)       (*per_cpu_ptr(&(var), cpu))
                                    ^~~~~~~~~~~~~~~~~~~~~~~~~
   arch/arm64/kernel/irq.c:105:13: warning: no previous prototype for function 'init_IRQ' [-Wmissing-prototypes]
   void __init init_IRQ(void)
               ^
   arch/arm64/kernel/irq.c:105:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   void __init init_IRQ(void)
   ^
   static 
   1 warning and 4 errors generated.


vim +/irq_shadow_call_stack_ptr +44 arch/arm64/kernel/irq.c

ac20ffbb0279aa Sami Tolvanen 2020-11-30  35  
ac20ffbb0279aa Sami Tolvanen 2020-11-30  36  static void init_irq_scs(void)
ac20ffbb0279aa Sami Tolvanen 2020-11-30  37  {
ac20ffbb0279aa Sami Tolvanen 2020-11-30  38  	int cpu;
ac20ffbb0279aa Sami Tolvanen 2020-11-30  39  
ac20ffbb0279aa Sami Tolvanen 2020-11-30  40  	if (!IS_ENABLED(CONFIG_SHADOW_CALL_STACK))
ac20ffbb0279aa Sami Tolvanen 2020-11-30  41  		return;
ac20ffbb0279aa Sami Tolvanen 2020-11-30  42  
ac20ffbb0279aa Sami Tolvanen 2020-11-30  43  	for_each_possible_cpu(cpu)
ac20ffbb0279aa Sami Tolvanen 2020-11-30 @44  		per_cpu(irq_shadow_call_stack_ptr, cpu) =
ac20ffbb0279aa Sami Tolvanen 2020-11-30  45  			scs_alloc(cpu_to_node(cpu));
ac20ffbb0279aa Sami Tolvanen 2020-11-30  46  }
ac20ffbb0279aa Sami Tolvanen 2020-11-30  47  

:::::: The code at line 44 was first introduced by commit
:::::: ac20ffbb0279aae7be48567fb734eae7d050769e arm64: scs: use vmapped IRQ and SDEI shadow stacks

:::::: TO: Sami Tolvanen <samitolvanen@...gle.com>
:::::: CC: Will Deacon <will@...nel.org>

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp