Re: [PATCH v2 3/4] drm/xe/xe_hw_error: Add support for GT hardware errors

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

Hi Riana,

kernel test robot noticed the following build errors:

[auto build test ERROR on drm-xe/drm-xe-next]
[also build test ERROR on drm/drm-next drm-intel/for-linux-next drm-intel/for-linux-next-fixes drm-misc/drm-misc-next drm-tip/drm-tip linus/master drm-exynos/exynos-drm-next v6.18-rc7 next-20251127]
[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#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Riana-Tauro/drm-ras-Introduce-the-DRM-RAS-infrastructure-over-generic-netlink/20251126-220942
base:   https://gitlab.freedesktop.org/drm/xe/kernel.git drm-xe-next
patch link:    https://lore.kernel.org/r/20251126143652.2843242-9-riana.tauro%40intel.com
patch subject: [PATCH v2 3/4] drm/xe/xe_hw_error: Add support for GT hardware errors
config: riscv-randconfig-r061-20251127 (https://download.01.org/0day-ci/archive/20251127/202511271357.7pA8zqx0-lkp@intel.com/config)
compiler: riscv64-linux-gcc (GCC) 13.4.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251127/202511271357.7pA8zqx0-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202511271357.7pA8zqx0-lkp@intel.com/

All errors (new ones prefixed by >>):

   In file included from arch/riscv/include/asm/bitops.h:19,
                    from include/linux/bitops.h:67,
                    from include/linux/thread_info.h:27,
                    from include/asm-generic/preempt.h:5,
                    from ./arch/riscv/include/generated/asm/preempt.h:1,
                    from include/linux/preempt.h:79,
                    from include/linux/spinlock.h:56,
                    from include/linux/kref.h:16,
                    from include/linux/configfs.h:25,
                    from include/linux/fault-inject.h:14,
                    from drivers/gpu/drm/xe/xe_hw_error.c:6:
>> include/asm-generic/bitops/__ffs.h:45:21: error: nonconstant array index in initializer
      45 | #define __ffs(word) generic___ffs(word)
         |                     ^~~~~~~~~~~~~
   drivers/gpu/drm/xe/xe_hw_error.c:31:10: note: in expansion of macro '__ffs'
      31 |         [__ffs(_bit)] = index
         |          ^~~~~
   drivers/gpu/drm/xe/xe_hw_error.c:34:9: note: in expansion of macro 'ERR_INDEX'
      34 |         ERR_INDEX(XE_GT_ERROR, DRM_XE_GENL_CORE_COMPUTE),
         |         ^~~~~~~~~
   include/asm-generic/bitops/__ffs.h:45:21: note: (near initialization for 'xe_hw_error_map')
      45 | #define __ffs(word) generic___ffs(word)
         |                     ^~~~~~~~~~~~~
   drivers/gpu/drm/xe/xe_hw_error.c:31:10: note: in expansion of macro '__ffs'
      31 |         [__ffs(_bit)] = index
         |          ^~~~~
   drivers/gpu/drm/xe/xe_hw_error.c:34:9: note: in expansion of macro 'ERR_INDEX'
      34 |         ERR_INDEX(XE_GT_ERROR, DRM_XE_GENL_CORE_COMPUTE),
         |         ^~~~~~~~~

Kconfig warnings: (for reference only)
   WARNING: unmet direct dependencies detected for ARCH_HAS_ELF_CORE_EFLAGS
   Depends on [n]: BINFMT_ELF [=y] && ELF_CORE [=n]
   Selected by [y]:
   - RISCV [=y]


vim +45 include/asm-generic/bitops/__ffs.h

c1226a005ec400 Akinobu Mita 2006-03-26  43  
cb4ede926134a6 Xiao Wang    2023-11-12  44  #ifndef __HAVE_ARCH___FFS
cb4ede926134a6 Xiao Wang    2023-11-12 @45  #define __ffs(word) generic___ffs(word)
cb4ede926134a6 Xiao Wang    2023-11-12  46  #endif
cb4ede926134a6 Xiao Wang    2023-11-12  47  

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