Hi Christoph, kernel test robot noticed the following build errors: [auto build test ERROR on 77f587896757708780a7e8792efe62939f25a5ab] url: https://github.com/intel-lab-lkp/linux/commits/Christoph-Lameter-via-B4-Relay/Avoid-memory-barrier-in-read_seqcount-through-load-acquire/20240913-064557 base: 77f587896757708780a7e8792efe62939f25a5ab patch link: https://lore.kernel.org/r/20240912-seq_optimize-v3-1-8ee25e04dffa%40gentwo.org patch subject: [PATCH v3] Avoid memory barrier in read_seqcount() through load acquire config: x86_64-defconfig (https://download.01.org/0day-ci/archive/20240913/202409132135.ki3Mp5EA-lkp@xxxxxxxxx/config) compiler: gcc-11 (Debian 11.3.0-12) 11.3.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240913/202409132135.ki3Mp5EA-lkp@xxxxxxxxx/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@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202409132135.ki3Mp5EA-lkp@xxxxxxxxx/ All error/warnings (new ones prefixed by >>): In file included from drivers/gpu/drm/i915/gt/intel_gt.c:36: drivers/gpu/drm/i915/gt/intel_tlb.h: In function 'intel_gt_tlb_seqno': >> drivers/gpu/drm/i915/gt/intel_tlb.h:21:47: error: macro "seqprop_sequence" requires 2 arguments, but only 1 given 21 | return seqprop_sequence(>->tlb.seqno); | ^ In file included from include/linux/mmzone.h:17, from include/linux/gfp.h:7, from include/drm/drm_managed.h:6, from drivers/gpu/drm/i915/gt/intel_gt.c:6: include/linux/seqlock.h:280: note: macro "seqprop_sequence" defined here 280 | #define seqprop_sequence(s, a) __seqprop(s, sequence)(s, a) | In file included from drivers/gpu/drm/i915/gt/intel_gt.c:36: >> drivers/gpu/drm/i915/gt/intel_tlb.h:21:16: error: 'seqprop_sequence' undeclared (first use in this function) 21 | return seqprop_sequence(>->tlb.seqno); | ^~~~~~~~~~~~~~~~ drivers/gpu/drm/i915/gt/intel_tlb.h:21:16: note: each undeclared identifier is reported only once for each function it appears in -- In file included from drivers/gpu/drm/i915/gt/intel_tlb.c:14: drivers/gpu/drm/i915/gt/intel_tlb.h: In function 'intel_gt_tlb_seqno': >> drivers/gpu/drm/i915/gt/intel_tlb.h:21:47: error: macro "seqprop_sequence" requires 2 arguments, but only 1 given 21 | return seqprop_sequence(>->tlb.seqno); | ^ In file included from include/linux/mmzone.h:17, from include/linux/gfp.h:7, from include/linux/xarray.h:16, from include/linux/radix-tree.h:21, from include/linux/idr.h:15, from include/linux/kernfs.h:12, from include/linux/sysfs.h:16, from include/linux/kobject.h:20, from include/linux/energy_model.h:7, from include/linux/device.h:16, from include/linux/pm_qos.h:17, from drivers/gpu/drm/i915/i915_drv.h:35, from drivers/gpu/drm/i915/gt/intel_tlb.c:6: include/linux/seqlock.h:280: note: macro "seqprop_sequence" defined here 280 | #define seqprop_sequence(s, a) __seqprop(s, sequence)(s, a) | In file included from drivers/gpu/drm/i915/gt/intel_tlb.c:14: >> drivers/gpu/drm/i915/gt/intel_tlb.h:21:16: error: 'seqprop_sequence' undeclared (first use in this function) 21 | return seqprop_sequence(>->tlb.seqno); | ^~~~~~~~~~~~~~~~ drivers/gpu/drm/i915/gt/intel_tlb.h:21:16: note: each undeclared identifier is reported only once for each function it appears in >> drivers/gpu/drm/i915/gt/intel_tlb.h:22:1: warning: control reaches end of non-void function [-Wreturn-type] 22 | } | ^ vim +/seqprop_sequence +21 drivers/gpu/drm/i915/gt/intel_tlb.h 568a2e6f0b12ee Chris Wilson 2023-08-01 18 568a2e6f0b12ee Chris Wilson 2023-08-01 19 static inline u32 intel_gt_tlb_seqno(const struct intel_gt *gt) 568a2e6f0b12ee Chris Wilson 2023-08-01 20 { 568a2e6f0b12ee Chris Wilson 2023-08-01 @21 return seqprop_sequence(>->tlb.seqno); 568a2e6f0b12ee Chris Wilson 2023-08-01 @22 } 568a2e6f0b12ee Chris Wilson 2023-08-01 23 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
