[Intel-gfx] [PATCH v2] drm/i915: Run relevant bits of debugfs drop_caches per GT

[kernel test robot]

Hi Andi,

kernel test robot noticed the following build warnings:

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

url:    https://github.com/intel-lab-lkp/linux/commits/Andi-Shyti/drm-i915-Run-relevant-bits-of-debugfs-drop_caches-per-GT/20230907-181322
base:   git://anongit.freedesktop.org/drm/drm-tip drm-tip
patch link:    https://lore.kernel.org/r/20230907101135.176326-1-andi.shyti%40linux.intel.com
patch subject: [Intel-gfx] [PATCH v2] drm/i915: Run relevant bits of debugfs drop_caches per GT
config: i386-debian-10.3 (https://download.01.org/0day-ci/archive/20230907/202309072011.nQPrRcF6-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/20230907/202309072011.nQPrRcF6-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 at intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202309072011.nQPrRcF6-lkp@intel.com/

All warnings (new ones prefixed by >>):

   In file included from drivers/gpu/drm/i915/i915_debugfs.c:36:
   drivers/gpu/drm/i915/i915_debugfs.c: In function 'i915_drop_caches_set':
>> drivers/gpu/drm/i915/gt/intel_gt.h:170:21: warning: comparison between pointer and integer
     170 |              (id__) < I915_MAX_GT; \
         |                     ^
   drivers/gpu/drm/i915/i915_debugfs.c:751:9: note: in expansion of macro 'for_each_gt'
     751 |         for_each_gt(i915, i, gt) {
         |         ^~~~~~~~~~~
   In file included from include/drm/drm_connector.h:32,
                    from drivers/gpu/drm/i915/display/intel_display_core.h:16,
                    from drivers/gpu/drm/i915/i915_drv.h:40,
                    from drivers/gpu/drm/i915/gt/intel_context.h:14,
                    from drivers/gpu/drm/i915/gem/i915_gem_context.h:12,
                    from drivers/gpu/drm/i915/i915_debugfs.c:35:
   drivers/gpu/drm/i915/gt/intel_gt.h:172:47: error: invalid type argument of '->' (have 'unsigned int')
     172 |                 for_each_if(((gt__) = (i915__)->gt[(id__)]))
         |                                               ^~
   include/drm/drm_util.h:63:38: note: in definition of macro 'for_each_if'
      63 | #define for_each_if(condition) if (!(condition)) {} else
         |                                      ^~~~~~~~~
   drivers/gpu/drm/i915/i915_debugfs.c:751:9: note: in expansion of macro 'for_each_gt'
     751 |         for_each_gt(i915, i, gt) {
         |         ^~~~~~~~~~~


vim +170 drivers/gpu/drm/i915/gt/intel_gt.h

bec68cc9ea42d8 Tvrtko Ursulin 2022-03-19  167  
bec68cc9ea42d8 Tvrtko Ursulin 2022-03-19  168  #define for_each_gt(gt__, i915__, id__) \
bec68cc9ea42d8 Tvrtko Ursulin 2022-03-19  169  	for ((id__) = 0; \
bec68cc9ea42d8 Tvrtko Ursulin 2022-03-19 @170  	     (id__) < I915_MAX_GT; \
bec68cc9ea42d8 Tvrtko Ursulin 2022-03-19  171  	     (id__)++) \
bec68cc9ea42d8 Tvrtko Ursulin 2022-03-19  172  		for_each_if(((gt__) = (i915__)->gt[(id__)]))
bec68cc9ea42d8 Tvrtko Ursulin 2022-03-19  173  

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