Merge tags 'compiler-attributes-for-linus-v5.0-rc3' and...

Merge tags 'compiler-attributes-for-linus-v5.0-rc3' and 'clang-format-for-linus-v5.0-rc3' of git://github.com/ojeda/linux

Pull misc clang fixes from Miguel Ojeda:

  - A fix for OPTIMIZER_HIDE_VAR from Michael S Tsirkin

  - Update clang-format with the latest for_each macro list from Jason
    Gunthorpe

* tag 'compiler-attributes-for-linus-v5.0-rc3' of git://github.com/ojeda/linux:
  include/linux/compiler*.h: fix OPTIMIZER_HIDE_VAR

* tag 'clang-format-for-linus-v5.0-rc3' of git://github.com/ojeda/linux:
  clang-format: Update .clang-format with the latest for_each macro list

.clang-format

@@ -72,6 +72,10 @@ ForEachMacros:
   - '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'
@@ -85,6 +89,7 @@ ForEachMacros:
   - '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'
@@ -103,6 +108,8 @@ ForEachMacros:
   - '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'
@@ -121,11 +128,21 @@ ForEachMacros:
   - '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'
@@ -133,6 +150,10 @@ ForEachMacros:
   - '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'
@@ -149,6 +170,7 @@ ForEachMacros:
   - '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'
@@ -160,6 +182,7 @@ ForEachMacros:
   - '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'
@@ -183,12 +206,14 @@ ForEachMacros:
   - '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'
@@ -206,14 +231,17 @@ ForEachMacros:
   - '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'
@@ -251,6 +279,8 @@ ForEachMacros:
   - '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'
@@ -267,11 +297,14 @@ ForEachMacros:
   - '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'
@@ -291,6 +324,7 @@ ForEachMacros:
   - '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'
@@ -357,12 +391,14 @@ ForEachMacros:
   - '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'
@@ -371,6 +407,11 @@ ForEachMacros:
   - '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

include/linux/compiler-clang.h

@@ -3,9 +3,8 @@
 #error "Please don't include <linux/compiler-clang.h> directly, include <linux/compiler.h> instead."
 #endif
 
-/* Some compiler specific definitions are overwritten here
- * for Clang compiler
- */
+/* Compiler specific definitions for Clang compiler */
+
 #define uninitialized_var(x) x = *(&(x))
 
 /* same as gcc, this was present in clang-2.6 so we can assume it works

include/linux/compiler-gcc.h

@@ -58,10 +58,6 @@
 	(typeof(ptr)) (__ptr + (off));					\
 })
 
-/* Make the optimizer believe the variable can be manipulated arbitrarily. */
-#define OPTIMIZER_HIDE_VAR(var)						\
-	__asm__ ("" : "=r" (var) : "0" (var))
-
 /*
  * A trick to suppress uninitialized variable warning without generating any
  * code

include/linux/compiler-intel.h

@@ -5,9 +5,7 @@
 
 #ifdef __ECC
 
-/* Some compiler specific definitions are overwritten here
- * for Intel ECC compiler
- */
+/* Compiler specific definitions for Intel ECC compiler */
 
 #include <asm/intrinsics.h>
 

include/linux/compiler.h

@@ -161,7 +161,9 @@ void ftrace_likely_update(struct ftrace_likely_data *f, int val,
 #endif
 
 #ifndef OPTIMIZER_HIDE_VAR
-#define OPTIMIZER_HIDE_VAR(var) barrier()
+/* Make the optimizer believe the variable can be manipulated arbitrarily. */
+#define OPTIMIZER_HIDE_VAR(var)						\
+	__asm__ ("" : "=r" (var) : "0" (var))
 #endif
 
 /* Not-quite-unique ID. */