tree: https://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git dev.2019.04.09a head: 108210466eaf3f9e0e18e250c3af4f2525963a60 commit: 108210466eaf3f9e0e18e250c3af4f2525963a60 [55/55] rcu: Make kfree_rcu() ignore NULL pointers reproduce: make htmldocs
All warnings (new ones prefixed by >>): WARNING: convert(1) not found, for SVG to PDF conversion install ImageMagick (https://www.imagemagick.org) include/linux/generic-radix-tree.h:1: warning: no structured comments found >> include/linux/rcupdate.h:837: warning: Function parameter or member 'rhf' >> not described in 'kfree_rcu' include/linux/rcupdate.h:837: warning: Excess function parameter 'rcu_head' description in 'kfree_rcu' kernel/rcu/tree_plugin.h:1: warning: no structured comments found kernel/rcu/tree_plugin.h:1: warning: no structured comments found include/linux/firmware/intel/stratix10-svc-client.h:1: warning: no structured comments found include/linux/gpio/driver.h:371: warning: Function parameter or member 'init_valid_mask' not described in 'gpio_chip' include/linux/i2c.h:343: warning: Function parameter or member 'init_irq' not described in 'i2c_client' include/linux/iio/hw-consumer.h:1: warning: no structured comments found include/linux/input/sparse-keymap.h:46: warning: Function parameter or member 'sw' not described in 'key_entry' include/linux/regulator/machine.h:199: warning: Function parameter or member 'max_uV_step' not described in 'regulation_constraints' include/linux/regulator/driver.h:228: warning: Function parameter or member 'resume' not described in 'regulator_ops' drivers/slimbus/stream.c:1: warning: no structured comments found include/linux/spi/spi.h:188: warning: Function parameter or member 'driver_override' not described in 'spi_device' drivers/target/target_core_device.c:1: warning: no structured comments found drivers/usb/typec/bus.c:1: warning: no structured comments found drivers/usb/typec/class.c:1: warning: no structured comments found include/linux/w1.h:281: warning: Function parameter or member 'of_match_table' not described in 'w1_family' fs/direct-io.c:257: warning: Excess function parameter 'offset' description in 'dio_complete' fs/file_table.c:1: warning: no structured comments found fs/libfs.c:477: warning: Excess function parameter 'available' description in 'simple_write_end' fs/posix_acl.c:646: warning: Function parameter or member 'inode' not described in 'posix_acl_update_mode' fs/posix_acl.c:646: warning: Function parameter or member 'mode_p' not described in 'posix_acl_update_mode' fs/posix_acl.c:646: warning: Function parameter or member 'acl' not described in 'posix_acl_update_mode' drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c:294: warning: Excess function parameter 'mm' description in 'amdgpu_mn_invalidate_range_start_hsa' drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c:294: warning: Excess function parameter 'start' description in 'amdgpu_mn_invalidate_range_start_hsa' drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c:294: warning: Excess function parameter 'end' description in 'amdgpu_mn_invalidate_range_start_hsa' drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c:343: warning: Excess function parameter 'mm' description in 'amdgpu_mn_invalidate_range_end' drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c:343: warning: Excess function parameter 'start' description in 'amdgpu_mn_invalidate_range_end' drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c:343: warning: Excess function parameter 'end' description in 'amdgpu_mn_invalidate_range_end' drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c:183: warning: Function parameter or member 'blockable' not described in 'amdgpu_mn_read_lock' drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c:295: warning: Function parameter or member 'range' not described in 'amdgpu_mn_invalidate_range_start_hsa' drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c:295: warning: Excess function parameter 'mm' description in 'amdgpu_mn_invalidate_range_start_hsa' drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c:295: warning: Excess function parameter 'start' description in 'amdgpu_mn_invalidate_range_start_hsa' drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c:295: warning: Excess function parameter 'end' description in 'amdgpu_mn_invalidate_range_start_hsa' drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c:344: warning: Function parameter or member 'range' not described in 'amdgpu_mn_invalidate_range_end' drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c:344: warning: Excess function parameter 'mm' description in 'amdgpu_mn_invalidate_range_end' drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c:344: warning: Excess function parameter 'start' description in 'amdgpu_mn_invalidate_range_end' drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c:344: warning: Excess function parameter 'end' description in 'amdgpu_mn_invalidate_range_end' drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c:374: warning: cannot understand function prototype: 'struct amdgpu_vm_pt_cursor ' drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c:375: warning: cannot understand function prototype: 'struct amdgpu_vm_pt_cursor ' drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c:547: warning: Function parameter or member 'adev' not described in 'for_each_amdgpu_vm_pt_leaf' drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c:547: warning: Function parameter or member 'vm' not described in 'for_each_amdgpu_vm_pt_leaf' drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c:547: warning: Function parameter or member 'start' not described in 'for_each_amdgpu_vm_pt_leaf' drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c:547: warning: Function parameter or member 'end' not described in 'for_each_amdgpu_vm_pt_leaf' drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c:547: warning: Function parameter or member 'cursor' not described in 'for_each_amdgpu_vm_pt_leaf' drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c:595: warning: Function parameter or member 'adev' not described in 'for_each_amdgpu_vm_pt_dfs_safe' drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c:595: warning: Function parameter or member 'vm' not described in 'for_each_amdgpu_vm_pt_dfs_safe' drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c:595: warning: Function parameter or member 'cursor' not described in 'for_each_amdgpu_vm_pt_dfs_safe' drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c:595: warning: Function parameter or member 'entry' not described in 'for_each_amdgpu_vm_pt_dfs_safe' drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c:866: warning: Function parameter or member 'level' not described in 'amdgpu_vm_bo_param' drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c:1346: warning: Function parameter or member 'params' not described in 'amdgpu_vm_update_func' drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c:1346: warning: Function parameter or member 'bo' not described in 'amdgpu_vm_update_func' drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c:1346: warning: Function parameter or member 'pe' not described in 'amdgpu_vm_update_func' drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c:1346: warning: Function parameter or member 'addr' not described in 'amdgpu_vm_update_func' drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c:1346: warning: Function parameter or member 'count' not described in 'amdgpu_vm_update_func' drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c:1346: warning: Function parameter or member 'incr' not described in 'amdgpu_vm_update_func' drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c:1346: warning: Function parameter or member 'flags' not described in 'amdgpu_vm_update_func' drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c:1514: warning: Function parameter or member 'params' not described in 'amdgpu_vm_update_flags' drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c:1514: warning: Function parameter or member 'bo' not described in 'amdgpu_vm_update_flags' drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c:1514: warning: Function parameter or member 'level' not described in 'amdgpu_vm_update_flags' drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c:1514: warning: Function parameter or member 'pe' not described in 'amdgpu_vm_update_flags' drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c:1514: warning: Function parameter or member 'addr' not described in 'amdgpu_vm_update_flags' drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c:1514: warning: Function parameter or member 'count' not described in 'amdgpu_vm_update_flags' drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c:1514: warning: Function parameter or member 'incr' not described in 'amdgpu_vm_update_flags' drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c:1514: warning: Function parameter or member 'flags' not described in 'amdgpu_vm_update_flags' drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c:3105: warning: Function parameter or member 'pasid' not described in 'amdgpu_vm_make_compute' drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c:375: warning: Excess function parameter 'entry' description in 'amdgpu_irq_dispatch' drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c:376: warning: Function parameter or member 'ih' not described in 'amdgpu_irq_dispatch' drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c:376: warning: Excess function parameter 'entry' description in 'amdgpu_irq_dispatch' drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c:1: warning: no structured comments found drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h:128: warning: Incorrect use of kernel-doc format: Documentation Makefile include scripts source @atomic_obj drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h:203: warning: Function parameter or member 'atomic_obj' not described in 'amdgpu_display_manager' drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h:203: warning: Function parameter or member 'atomic_obj_lock' not described in 'amdgpu_display_manager' drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h:203: warning: Function parameter or member 'backlight_link' not described in 'amdgpu_display_manager' drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h:203: warning: Function parameter or member 'backlight_caps' not described in 'amdgpu_display_manager' drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h:203: warning: Function parameter or member 'freesync_module' not described in 'amdgpu_display_manager' drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h:203: warning: Function parameter or member 'fw_dmcu' not described in 'amdgpu_display_manager' drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h:203: warning: Function parameter or member 'dmcu_fw_version' not described in 'amdgpu_display_manager' drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c:1: warning: no structured comments found include/drm/drm_drv.h:715: warning: Function parameter or member 'gem_prime_pin' not described in 'drm_driver' include/drm/drm_drv.h:715: warning: Function parameter or member 'gem_prime_unpin' not described in 'drm_driver' include/drm/drm_drv.h:715: warning: Function parameter or member 'gem_prime_res_obj' not described in 'drm_driver' include/drm/drm_drv.h:715: warning: Function parameter or member 'gem_prime_get_sg_table' not described in 'drm_driver' include/drm/drm_drv.h:715: warning: Function parameter or member 'gem_prime_import_sg_table' not described in 'drm_driver' include/drm/drm_drv.h:715: warning: Function parameter or member 'gem_prime_vmap' not described in 'drm_driver' include/drm/drm_drv.h:715: warning: Function parameter or member 'gem_prime_vunmap' not described in 'drm_driver' include/drm/drm_drv.h:715: warning: Function parameter or member 'gem_prime_mmap' not described in 'drm_driver' include/drm/drm_atomic_state_helper.h:1: warning: no structured comments found drivers/gpu/drm/scheduler/sched_main.c:376: warning: Excess function parameter 'bad' description in 'drm_sched_stop' drivers/gpu/drm/scheduler/sched_main.c:377: warning: Excess function parameter 'bad' description in 'drm_sched_stop' drivers/gpu/drm/scheduler/sched_main.c:420: warning: Function parameter or member 'full_recovery' not described in 'drm_sched_start' drivers/gpu/drm/i915/i915_vma.h:50: warning: cannot understand function prototype: 'struct i915_vma ' drivers/gpu/drm/i915/i915_vma.h:1: warning: no structured comments found drivers/gpu/drm/i915/intel_guc_fwif.h:536: warning: cannot understand function prototype: 'struct guc_log_buffer_state ' drivers/gpu/drm/i915/i915_trace.h:1: warning: no structured comments found drivers/gpu/drm/arm/display/komeda/komeda_pipeline.h:126: warning: Function parameter or member 'hw_id' not described in 'komeda_component' drivers/gpu/drm/arm/display/komeda/komeda_pipeline.h:126: warning: Function parameter or member 'max_active_outputs' not described in 'komeda_component' drivers/gpu/drm/arm/display/komeda/komeda_pipeline.h:126: warning: Function parameter or member 'supported_outputs' not described in 'komeda_component' drivers/gpu/drm/arm/display/komeda/komeda_pipeline.h:142: warning: Function parameter or member 'output_port' not described in 'komeda_component_output' drivers/gpu/drm/arm/display/komeda/komeda_pipeline.h:196: warning: Function parameter or member 'component' not described in 'komeda_component_state' drivers/gpu/drm/arm/display/komeda/komeda_pipeline.h:196: warning: Function parameter or member 'crtc' not described in 'komeda_component_state' vim +837 include/linux/rcupdate.h 795 796 /* 797 * Helper macro for kfree_rcu() to prevent argument-expansion eyestrain. 798 */ 799 #define __kfree_rcu(head, offset) \ 800 do { \ 801 BUILD_BUG_ON(!__is_kfree_rcu_offset(offset)); \ 802 kfree_call_rcu(head, (rcu_callback_t)(unsigned long)(offset)); \ 803 } while (0) 804 805 /** 806 * kfree_rcu() - kfree an object after a grace period. 807 * @ptr: pointer to kfree 808 * @rcu_head: the name of the struct rcu_head within the type of @ptr. 809 * 810 * Many rcu callbacks functions just call kfree() on the base structure. 811 * These functions are trivial, but their size adds up, and furthermore 812 * when they are used in a kernel module, that module must invoke the 813 * high-latency rcu_barrier() function at module-unload time. 814 * 815 * The kfree_rcu() function handles this issue. Rather than encoding a 816 * function address in the embedded rcu_head structure, kfree_rcu() instead 817 * encodes the offset of the rcu_head structure within the base structure. 818 * Because the functions are not allowed in the low-order 4096 bytes of 819 * kernel virtual memory, offsets up to 4095 bytes can be accommodated. 820 * If the offset is larger than 4095 bytes, a compile-time error will 821 * be generated in __kfree_rcu(). If this error is triggered, you can 822 * either fall back to use of call_rcu() or rearrange the structure to 823 * position the rcu_head structure into the first 4096 bytes. 824 * 825 * Note that the allowable offset might decrease in the future, for example, 826 * to allow something like kmem_cache_free_rcu(). 827 * 828 * The BUILD_BUG_ON check must not involve any function calls, hence the 829 * checks are done in macros here. 830 */ 831 #define kfree_rcu(ptr, rhf) \ 832 do { \ 833 typeof (ptr) ___p = (ptr); \ 834 \ 835 if (___p) \ 836 __kfree_rcu(&((___p)->rhf), offsetof(typeof(*(ptr)), rhf)); \ > 837 } while (0) 838 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
.config.gz
Description: application/gzip
