Re: [Intel-gfx] [PATCH] drm/i915: Add Wa_18028616096

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

Hi Shekhar,

kernel test robot noticed the following build errors:

[auto build test ERROR on drm-tip/drm-tip]

url:    https://github.com/intel-lab-lkp/linux/commits/Shekhar-Chauhan/drm-i915-Add-Wa_18028616096/20230920-121417
base:   git://anongit.freedesktop.org/drm/drm-tip drm-tip
patch link:    https://lore.kernel.org/r/20230920040547.181861-1-shekhar.chauhan%40intel.com
patch subject: [Intel-gfx] [PATCH] drm/i915: Add Wa_18028616096
config: x86_64-randconfig-003-20230920 (https://download.01.org/0day-ci/archive/20230920/202309201405.PF0VVCts-lkp@intel.com/config)
compiler: gcc-12 (Debian 12.2.0-14) 12.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20230920/202309201405.PF0VVCts-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/202309201405.PF0VVCts-lkp@intel.com/

All errors (new ones prefixed by >>):

   In file included from include/linux/container_of.h:5,
                    from include/linux/plist.h:76,
                    from include/linux/pm_qos.h:15,
                    from drivers/gpu/drm/i915/i915_drv.h:35,
                    from drivers/gpu/drm/i915/gt/intel_workarounds.c:6:
   drivers/gpu/drm/i915/gt/intel_workarounds.c: In function 'general_render_compute_wa_init':
>> include/linux/build_bug.h:16:51: error: negative width in bit-field '<anonymous>'
      16 | #define BUILD_BUG_ON_ZERO(e) ((int)(sizeof(struct { int:(-!!(e)); })))
         |                                                   ^
   drivers/gpu/drm/i915/i915_reg_defs.h:22:16: note: in expansion of macro 'BUILD_BUG_ON_ZERO'
      22 |                BUILD_BUG_ON_ZERO(__is_constexpr(__n) &&         \
         |                ^~~~~~~~~~~~~~~~~
   drivers/gpu/drm/i915/gt/intel_gt_regs.h:1232:49: note: in expansion of macro 'REG_BIT'
    1232 | #define   UGM_FRAGMENT_THRESHOLD_TO_3           REG_BIT(58)
         |                                                 ^~~~~~~
   drivers/gpu/drm/i915/gt/intel_workarounds.c:2919:57: note: in expansion of macro 'UGM_FRAGMENT_THRESHOLD_TO_3'
    2919 |                 wa_mcr_write_or(wal, LSC_CHICKEN_BIT_0, UGM_FRAGMENT_THRESHOLD_TO_3);
         |                                                         ^~~~~~~~~~~~~~~~~~~~~~~~~~~


vim +16 include/linux/build_bug.h

bc6245e5efd70c Ian Abbott       2017-07-10   6  
bc6245e5efd70c Ian Abbott       2017-07-10   7  #ifdef __CHECKER__
bc6245e5efd70c Ian Abbott       2017-07-10   8  #define BUILD_BUG_ON_ZERO(e) (0)
bc6245e5efd70c Ian Abbott       2017-07-10   9  #else /* __CHECKER__ */
bc6245e5efd70c Ian Abbott       2017-07-10  10  /*
bc6245e5efd70c Ian Abbott       2017-07-10  11   * Force a compilation error if condition is true, but also produce a
8788994376d84d Rikard Falkeborn 2019-12-04  12   * result (of value 0 and type int), so the expression can be used
bc6245e5efd70c Ian Abbott       2017-07-10  13   * e.g. in a structure initializer (or where-ever else comma expressions
bc6245e5efd70c Ian Abbott       2017-07-10  14   * aren't permitted).
bc6245e5efd70c Ian Abbott       2017-07-10  15   */
8788994376d84d Rikard Falkeborn 2019-12-04 @16  #define BUILD_BUG_ON_ZERO(e) ((int)(sizeof(struct { int:(-!!(e)); })))
527edbc18a70e7 Masahiro Yamada  2019-01-03  17  #endif /* __CHECKER__ */
527edbc18a70e7 Masahiro Yamada  2019-01-03  18  

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