Merge remote-tracking branch 'net-next/master' into mac80211-next

  - 'apei_estatus_for_each_section'

  - 'ata_for_each_dev'

  - 'ata_for_each_link'

  - '__ata_qc_for_each'

  - 'ata_qc_for_each'

  - 'ata_qc_for_each_raw'

  - 'ata_qc_for_each_with_internal'

  - 'ax25_for_each'

  - 'ax25_uid_for_each'

  - 'bio_for_each_integrity_vec'

  - 'blk_queue_for_each_rl'

  - 'bond_for_each_slave'

  - 'bond_for_each_slave_rcu'

  - 'bpf_for_each_spilled_reg'

  - 'btree_for_each_safe128'

  - 'btree_for_each_safe32'

  - 'btree_for_each_safe64'

  - 'drm_atomic_crtc_for_each_plane'

  - 'drm_atomic_crtc_state_for_each_plane'

  - 'drm_atomic_crtc_state_for_each_plane_state'

  - 'drm_atomic_for_each_plane_damage'

  - 'drm_connector_for_each_possible_encoder'

  - 'drm_for_each_connector_iter'

  - 'drm_for_each_crtc'

  - 'drm_for_each_encoder'

  - 'for_each_bio'

  - 'for_each_board_func_rsrc'

  - 'for_each_bvec'

  - 'for_each_card_components'

  - 'for_each_card_links'

  - 'for_each_card_links_safe'

  - 'for_each_card_prelinks'

  - 'for_each_card_rtds'

  - 'for_each_card_rtds_safe'

  - 'for_each_cgroup_storage_type'

  - 'for_each_child_of_node'

  - 'for_each_clear_bit'

  - 'for_each_clear_bit_from'

  - 'for_each_cmsghdr'

  - 'for_each_compatible_node'

  - 'for_each_component_dais'

  - 'for_each_component_dais_safe'

  - 'for_each_comp_order'

  - 'for_each_console'

  - 'for_each_cpu'

  - 'for_each_cpu_and'

  - 'for_each_cpu_wrap'

  - 'for_each_dev_addr'

  - 'for_each_dma_cap_mask'

  - 'for_each_dpcm_be'

  - 'for_each_dpcm_be_rollback'

  - 'for_each_dpcm_be_safe'

  - 'for_each_dpcm_fe'

  - 'for_each_drhd_unit'

  - 'for_each_dss_dev'

  - 'for_each_efi_memory_desc'

  - 'for_each_iommu'

  - 'for_each_ip_tunnel_rcu'

  - 'for_each_irq_nr'

  - 'for_each_link_codecs'

  - 'for_each_lru'

  - 'for_each_matching_node'

  - 'for_each_matching_node_and_match'

  - 'for_each_mem_range_rev'

  - 'for_each_migratetype_order'

  - 'for_each_msi_entry'

  - 'for_each_msi_entry_safe'

  - 'for_each_net'

  - 'for_each_netdev'

  - 'for_each_netdev_continue'

  - 'for_each_node_with_property'

  - 'for_each_of_allnodes'

  - 'for_each_of_allnodes_from'

  - 'for_each_of_cpu_node'

  - 'for_each_of_pci_range'

  - 'for_each_old_connector_in_state'

  - 'for_each_old_crtc_in_state'

  - 'for_each_oldnew_connector_in_state'

  - 'for_each_oldnew_crtc_in_state'

  - 'for_each_oldnew_plane_in_state'

  - 'for_each_oldnew_plane_in_state_reverse'

  - 'for_each_oldnew_private_obj_in_state'

  - 'for_each_old_plane_in_state'

  - 'for_each_old_private_obj_in_state'

  - 'for_each_process'

  - 'for_each_process_thread'

  - 'for_each_property_of_node'

  - 'for_each_registered_fb'

  - 'for_each_reserved_mem_region'

  - 'for_each_resv_unavail_range'

  - 'for_each_rtd_codec_dai'

  - 'for_each_rtd_codec_dai_rollback'

  - 'for_each_rtdcom'

  - 'for_each_rtdcom_safe'

  - 'for_each_set_bit'

  - 'for_each_set_bit_from'

  - 'for_each_sg'

  - 'for_each_sg_page'

  - 'for_each_sibling_event'

  - '__for_each_thread'

  - 'for_each_thread'

  - 'for_each_zone'

  - 'hlist_nulls_for_each_entry_from'

  - 'hlist_nulls_for_each_entry_rcu'

  - 'hlist_nulls_for_each_entry_safe'

  - 'i3c_bus_for_each_i2cdev'

  - 'i3c_bus_for_each_i3cdev'

  - 'ide_host_for_each_port'

  - 'ide_port_for_each_dev'

  - 'ide_port_for_each_present_dev'

  - 'kvm_for_each_memslot'

  - 'kvm_for_each_vcpu'

  - 'list_for_each'

  - 'list_for_each_codec'

  - 'list_for_each_codec_safe'

  - 'list_for_each_entry'

  - 'list_for_each_entry_continue'

  - 'list_for_each_entry_continue_rcu'

  - 'list_for_each_entry_continue_reverse'

  - 'list_for_each_entry_from'

  - 'list_for_each_entry_from_rcu'

  - 'list_for_each_entry_from_reverse'

  - 'list_for_each_entry_lockless'

  - 'list_for_each_entry_rcu'

  - 'media_device_for_each_intf'

  - 'media_device_for_each_link'

  - 'media_device_for_each_pad'

  - 'nanddev_io_for_each_page'

  - 'netdev_for_each_lower_dev'

  - 'netdev_for_each_lower_private'

  - 'netdev_for_each_lower_private_rcu'

  - 'sk_nulls_for_each'

  - 'sk_nulls_for_each_from'

  - 'sk_nulls_for_each_rcu'

  - 'snd_array_for_each'

  - 'snd_pcm_group_for_each_entry'

  - 'snd_soc_dapm_widget_for_each_path'

  - 'snd_soc_dapm_widget_for_each_path_safe'

  - 'snd_soc_dapm_widget_for_each_sink_path'

  - 'snd_soc_dapm_widget_for_each_source_path'

  - 'tb_property_for_each'

  - 'tcf_exts_for_each_action'

  - 'udp_portaddr_for_each_entry'

  - 'udp_portaddr_for_each_entry_rcu'

  - 'usb_hub_for_each_child'

  - 'v4l2_m2m_for_each_dst_buf_safe'

  - 'v4l2_m2m_for_each_src_buf'

  - 'v4l2_m2m_for_each_src_buf_safe'

  - 'virtio_device_for_each_vq'

  - 'xa_for_each'

  - 'xas_for_each'

  - 'xas_for_each_conflict'

  - 'xas_for_each_marked'

  - 'zorro_for_each_dev'

#IncludeBlocks: Preserve # Unknown to clang-format-5.0

The primary info for the bpf syscall is available in the `man-pages`_

for `bpf(2)`_.

BPF Type Format (BTF)

=====================

.. toctree::

   :maxdepth: 1

   btf

Frequently asked questions (FAQ)

Sometimes you need to ensure that a subsequent call to :c:func:`xa_store`

will not need to allocate memory.  The :c:func:`xa_reserve` function

will store a reserved entry at the indicated index.  Users of the normal

API will see this entry as containing ``NULL``.  If you do not need to

use the reserved entry, you can call :c:func:`xa_release` to remove the

unused entry.  If another user has stored to the entry in the meantime,

:c:func:`xa_release` will do nothing; if instead you want the entry to

become ``NULL``, you should use :c:func:`xa_erase`.

will store a reserved entry at the indicated index.  Users of the

normal API will see this entry as containing ``NULL``.  If you do

not need to use the reserved entry, you can call :c:func:`xa_release`

to remove the unused entry.  If another user has stored to the entry

in the meantime, :c:func:`xa_release` will do nothing; if instead you

want the entry to become ``NULL``, you should use :c:func:`xa_erase`.

Using :c:func:`xa_insert` on a reserved entry will fail.

If all entries in the array are ``NULL``, the :c:func:`xa_empty` function

will return ``true``.

 * :c:func:`xa_store_bh`

 * :c:func:`xa_store_irq`

 * :c:func:`xa_insert`

 * :c:func:`xa_insert_bh`

 * :c:func:`xa_insert_irq`

 * :c:func:`xa_erase`

 * :c:func:`xa_erase_bh`

 * :c:func:`xa_erase_irq`

===========================================

[1] ARM Linux Kernel documentation - CPUs bindings

    Documentation/devicetree/bindings/arm/cpus.txt

    Documentation/devicetree/bindings/arm/cpus.yaml