tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: a9c9a6f741cdaa2fa9ba24a790db8d07295761e3 commit: a046a0daa3c6855d63fdf108919bb9666ba96c82 drm/i915/dg2: Add vswing programming for SNPS phys date: 5 weeks ago config: i386-randconfig-r002-20210903 (attached as .config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project c9948e9254fbb6ea00f66c7b4542311d21e060be) 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://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=a046a0daa3c6855d63fdf108919bb9666ba96c82 git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout a046a0daa3c6855d63fdf108919bb9666ba96c82 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=i386 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot All warnings (new ones prefixed by >>): check_trace_callback_type_##name(void (*cb)(data_proto)) \ ^ In file included from drivers/gpu/drm/i915/display/intel_snps_phy.c:8: In file included from drivers/gpu/drm/i915/display/intel_de.h:11: drivers/gpu/drm/i915/i915_trace.h:951:1: warning: unused parameter 'cb' [-Wunused-parameter] DEFINE_EVENT(i915_request, i915_request_wait_end, ^ include/linux/tracepoint.h:542:2: note: expanded from macro 'DEFINE_EVENT' DECLARE_TRACE(name, PARAMS(proto), PARAMS(args)) ^ include/linux/tracepoint.h:419:2: note: expanded from macro 'DECLARE_TRACE' __DECLARE_TRACE(name, PARAMS(proto), PARAMS(args), \ ^ include/linux/tracepoint.h:279:42: note: expanded from macro '__DECLARE_TRACE' check_trace_callback_type_##name(void (*cb)(data_proto)) \ ^ In file included from drivers/gpu/drm/i915/display/intel_snps_phy.c:8: In file included from drivers/gpu/drm/i915/display/intel_de.h:11: drivers/gpu/drm/i915/i915_trace.h:956:1: warning: unused parameter 'cb' [-Wunused-parameter] TRACE_EVENT_CONDITION(i915_reg_rw, ^ include/linux/tracepoint.h:563:2: note: expanded from macro 'TRACE_EVENT_CONDITION' DECLARE_TRACE_CONDITION(name, PARAMS(proto), \ ^ include/linux/tracepoint.h:424:2: note: expanded from macro 'DECLARE_TRACE_CONDITION' __DECLARE_TRACE(name, PARAMS(proto), PARAMS(args), \ ^ include/linux/tracepoint.h:279:42: note: expanded from macro '__DECLARE_TRACE' check_trace_callback_type_##name(void (*cb)(data_proto)) \ ^ In file included from drivers/gpu/drm/i915/display/intel_snps_phy.c:8: In file included from drivers/gpu/drm/i915/display/intel_de.h:11: drivers/gpu/drm/i915/i915_trace.h:984:1: warning: unused parameter 'cb' [-Wunused-parameter] TRACE_EVENT(intel_gpu_freq_change, ^ include/linux/tracepoint.h:553:2: note: expanded from macro 'TRACE_EVENT' DECLARE_TRACE(name, PARAMS(proto), PARAMS(args)) ^ include/linux/tracepoint.h:419:2: note: expanded from macro 'DECLARE_TRACE' __DECLARE_TRACE(name, PARAMS(proto), PARAMS(args), \ ^ include/linux/tracepoint.h:279:42: note: expanded from macro '__DECLARE_TRACE' check_trace_callback_type_##name(void (*cb)(data_proto)) \ ^ In file included from drivers/gpu/drm/i915/display/intel_snps_phy.c:8: In file included from drivers/gpu/drm/i915/display/intel_de.h:11: drivers/gpu/drm/i915/i915_trace.h:1026:1: warning: unused parameter 'cb' [-Wunused-parameter] DEFINE_EVENT(i915_ppgtt, i915_ppgtt_create, ^ include/linux/tracepoint.h:542:2: note: expanded from macro 'DEFINE_EVENT' DECLARE_TRACE(name, PARAMS(proto), PARAMS(args)) ^ include/linux/tracepoint.h:419:2: note: expanded from macro 'DECLARE_TRACE' __DECLARE_TRACE(name, PARAMS(proto), PARAMS(args), \ ^ include/linux/tracepoint.h:279:42: note: expanded from macro '__DECLARE_TRACE' check_trace_callback_type_##name(void (*cb)(data_proto)) \ ^ In file included from drivers/gpu/drm/i915/display/intel_snps_phy.c:8: In file included from drivers/gpu/drm/i915/display/intel_de.h:11: drivers/gpu/drm/i915/i915_trace.h:1031:1: warning: unused parameter 'cb' [-Wunused-parameter] DEFINE_EVENT(i915_ppgtt, i915_ppgtt_release, ^ include/linux/tracepoint.h:542:2: note: expanded from macro 'DEFINE_EVENT' DECLARE_TRACE(name, PARAMS(proto), PARAMS(args)) ^ include/linux/tracepoint.h:419:2: note: expanded from macro 'DECLARE_TRACE' __DECLARE_TRACE(name, PARAMS(proto), PARAMS(args), \ ^ include/linux/tracepoint.h:279:42: note: expanded from macro '__DECLARE_TRACE' check_trace_callback_type_##name(void (*cb)(data_proto)) \ ^ In file included from drivers/gpu/drm/i915/display/intel_snps_phy.c:8: In file included from drivers/gpu/drm/i915/display/intel_de.h:11: drivers/gpu/drm/i915/i915_trace.h:1063:1: warning: unused parameter 'cb' [-Wunused-parameter] DEFINE_EVENT(i915_context, i915_context_create, ^ include/linux/tracepoint.h:542:2: note: expanded from macro 'DEFINE_EVENT' DECLARE_TRACE(name, PARAMS(proto), PARAMS(args)) ^ include/linux/tracepoint.h:419:2: note: expanded from macro 'DECLARE_TRACE' __DECLARE_TRACE(name, PARAMS(proto), PARAMS(args), \ ^ include/linux/tracepoint.h:279:42: note: expanded from macro '__DECLARE_TRACE' check_trace_callback_type_##name(void (*cb)(data_proto)) \ ^ In file included from drivers/gpu/drm/i915/display/intel_snps_phy.c:8: In file included from drivers/gpu/drm/i915/display/intel_de.h:11: drivers/gpu/drm/i915/i915_trace.h:1068:1: warning: unused parameter 'cb' [-Wunused-parameter] DEFINE_EVENT(i915_context, i915_context_free, ^ include/linux/tracepoint.h:542:2: note: expanded from macro 'DEFINE_EVENT' DECLARE_TRACE(name, PARAMS(proto), PARAMS(args)) ^ include/linux/tracepoint.h:419:2: note: expanded from macro 'DECLARE_TRACE' __DECLARE_TRACE(name, PARAMS(proto), PARAMS(args), \ ^ include/linux/tracepoint.h:279:42: note: expanded from macro '__DECLARE_TRACE' check_trace_callback_type_##name(void (*cb)(data_proto)) \ ^ >> drivers/gpu/drm/i915/display/intel_snps_phy.c:70:12: warning: comparison of integers of different signs: 'u32' (aka 'unsigned int') and 'int' [-Wsign-compare] if (level >= n_entries) ~~~~~ ^ ~~~~~~~~~ drivers/gpu/drm/i915/display/intel_snps_phy.c:650:30: warning: comparison of integers of different signs: 'int' and 'const u32' (aka 'const unsigned int') [-Wsign-compare] if (crtc_state->port_clock <= tables[i]->clock) { ~~~~~~~~~~~~~~~~~~~~~~ ^ ~~~~~~~~~~~~~~~~ drivers/gpu/drm/i915/display/intel_snps_phy.c:759:55: warning: unused parameter 'encoder' [-Wunused-parameter] int intel_mpllb_calc_port_clock(struct intel_encoder *encoder, ^ drivers/gpu/drm/i915/display/intel_snps_phy.c:828:13: warning: comparison of integers of different signs: 'int' and 'const u32' (aka 'const unsigned int') [-Wsign-compare] if (clock == tables[i]->clock) ~~~~~ ^ ~~~~~~~~~~~~~~~~ 1812 warnings generated. vim +70 drivers/gpu/drm/i915/display/intel_snps_phy.c 61 62 void intel_snps_phy_ddi_vswing_sequence(struct intel_encoder *encoder, 63 u32 level) 64 { 65 struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); 66 enum phy phy = intel_port_to_phy(dev_priv, encoder->port); 67 int n_entries, ln; 68 69 n_entries = ARRAY_SIZE(dg2_ddi_translations); > 70 if (level >= n_entries) 71 level = n_entries - 1; 72 73 for (ln = 0; ln < 4; ln++) 74 intel_de_write(dev_priv, SNPS_PHY_TX_EQ(ln, phy), 75 dg2_ddi_translations[level]); 76 } 77 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org