Re: [PATCH RFC 4/4] logic_pio: Warn on and discard accesses to addresses below IO_SPACE_BASE

[kernel test robot <lkp@intel.com>]

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Hi John,

[FYI, it's a private test report for your RFC patch.]
[auto build test ERROR on arm64/for-next/core]
[also build test ERROR on asm-generic/master soc/for-next linus/master v5.11-rc3 next-20210115]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:    https://github.com/0day-ci/linux/commits/John-Garry/Fix-arm64-crash-for-accessing-unmapped-IO-port-regions-reboot/20210116-010800
base:   https://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-next/core
config: nios2-randconfig-r012-20210115 (attached as .config)
compiler: nios2-linux-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://github.com/0day-ci/linux/commit/a75a79165fd5529fe38a5f05268cce3c1ee89b5e
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review John-Garry/Fix-arm64-crash-for-accessing-unmapped-IO-port-regions-reboot/20210116-010800
        git checkout a75a79165fd5529fe38a5f05268cce3c1ee89b5e
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=nios2 

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 include/asm-generic/io.h:530,
                    from arch/nios2/include/asm/io.h:41,
                    from include/linux/io.h:13,
                    from include/linux/irq.h:20,
                    from include/asm-generic/hardirq.h:17,
                    from ./arch/nios2/include/generated/asm/hardirq.h:1,
                    from include/linux/hardirq.h:10,
                    from include/linux/interrupt.h:11,
                    from include/linux/kernel_stat.h:9,
                    from arch/nios2/kernel/asm-offsets.c:8:
>> include/linux/logic_pio.h:118:2: error: #error MMIO_UPPPER_LIMIT should be above MMIO_LOWER_LIMIT
     118 | #error MMIO_UPPPER_LIMIT should be above MMIO_LOWER_LIMIT
         |  ^~~~~
   make[2]: *** [scripts/Makefile.build:117: arch/nios2/kernel/asm-offsets.s] Error 1
   make[2]: Target '__build' not remade because of errors.
   make[1]: *** [Makefile:1206: prepare0] Error 2
   make[1]: Target 'prepare' not remade because of errors.
   make: *** [Makefile:185: __sub-make] Error 2
   make: Target 'prepare' not remade because of errors.


vim +118 include/linux/logic_pio.h

   114	
   115	#define MMIO_UPPER_LIMIT (IO_SPACE_LIMIT - PIO_INDIRECT_SIZE)
   116	#define MMIO_LOWER_LIMIT IO_SPACE_BASE
   117	#if MMIO_LOWER_LIMIT >= MMIO_UPPER_LIMIT
 > 118	#error MMIO_UPPPER_LIMIT should be above MMIO_LOWER_LIMIT
   119	#endif
   120	

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

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