FM / linux

/usr/src/kernels/4.18.0-553.121.1.el8_10.x86_64/include/linux/

/usr/src/kernels/4.18.0-553.121.1.el8_10.x86_64/include/linux

Name	Size	Mode	Actions
amba/	-	0755	rm
avf/	-	0755	rm
bcma/	-	0755	rm
byteorder/	-	0755	rm
can/	-	0755	rm
ceph/	-	0755	rm
clk/	-	0755	rm
crush/	-	0755	rm
decompress/	-	0755	rm
dma/	-	0755	rm
dsa/	-	0755	rm
extcon/	-	0755	rm
firmware/	-	0755	rm
fpga/	-	0755	rm
fsl/	-	0755	rm
gpio/	-	0755	rm
hsi/	-	0755	rm
iio/	-	0755	rm
input/	-	0755	rm
irqchip/	-	0755	rm
isdn/	-	0755	rm
lockd/	-	0755	rm
mailbox/	-	0755	rm
mfd/	-	0755	rm
mlx4/	-	0755	rm
mlx5/	-	0755	rm
mmc/	-	0755	rm
mtd/	-	0755	rm
mux/	-	0755	rm
net/	-	0755	rm
netfilter/	-	0755	rm
netfilter_arp/	-	0755	rm
netfilter_bridge/	-	0755	rm
netfilter_ipv4/	-	0755	rm
netfilter_ipv6/	-	0755	rm
pcs/	-	0755	rm
perf/	-	0755	rm
phy/	-	0755	rm
pinctrl/	-	0755	rm
platform_data/	-	0755	rm
power/	-	0755	rm
qed/	-	0755	rm
raid/	-	0755	rm
regulator/	-	0755	rm
remoteproc/	-	0755	rm
reset/	-	0755	rm
rpmsg/	-	0755	rm
rtc/	-	0755	rm
sched/	-	0755	rm
soc/	-	0755	rm
soundwire/	-	0755	rm
spi/	-	0755	rm
ssb/	-	0755	rm
sunrpc/	-	0755	rm
ulpi/	-	0755	rm
unaligned/	-	0755	rm
usb/	-	0755	rm
uwb/	-	0755	rm
wimax/	-	0755	rm
8250_pci.h	1038	0644	edit dl rm
a.out.h	354	0644	edit dl rm
acct.h	2551	0644	edit dl rm
acpi.h	43130	0644	edit dl rm
acpi_apmt.h	367	0644	edit dl rm
acpi_dma.h	3300	0644	edit dl rm
acpi_iort.h	3235	0644	edit dl rm
acpi_pmtmr.h	674	0644	edit dl rm
adb.h	1832	0644	edit dl rm
adfs_fs.h	574	0644	edit dl rm
adxl.h	310	0644	edit dl rm
aer.h	1822	0644	edit dl rm
agpgart.h	3908	0644	edit dl rm
agp_backend.h	3534	0644	edit dl rm
ahci-remap.h	607	0644	edit dl rm
ahci_platform.h	1772	0644	edit dl rm
aio.h	651	0644	edit dl rm
alarmtimer.h	1875	0644	edit dl rm
altera_jtaguart.h	379	0644	edit dl rm
altera_uart.h	397	0644	edit dl rm
amd-iommu.h	6931	0644	edit dl rm
amd-pstate.h	3356	0644	edit dl rm
anon_inodes.h	494	0644	edit dl rm
aperture.h	1619	0644	edit dl rm
apm-emulation.h	1575	0644	edit dl rm
apm_bios.h	2746	0644	edit dl rm
apple-gmux.h	1459	0644	edit dl rm
apple_bl.h	498	0644	edit dl rm
arch_topology.h	1983	0644	edit dl rm
arm-cci.h	2058	0644	edit dl rm
arm-smccc.h	16066	0644	edit dl rm
arm_sdei.h	2641	0644	edit dl rm
ascii85.h	532	0644	edit dl rm
asn1.h	2039	0644	edit dl rm
asn1_ber_bytecode.h	2783	0644	edit dl rm
asn1_decoder.h	675	0644	edit dl rm
assoc_array.h	3156	0644	edit dl rm
assoc_array_priv.h	5630	0644	edit dl rm
async.h	4591	0644	edit dl rm
async_tx.h	7487	0644	edit dl rm
ata.h	33980	0644	edit dl rm
atalk.h	4550	0644	edit dl rm
ata_platform.h	729	0644	edit dl rm
ath9k_platform.h	1477	0644	edit dl rm
atm.h	287	0644	edit dl rm
atmdev.h	10457	0644	edit dl rm
atmel-mci.h	1429	0644	edit dl rm
atmel-ssc.h	9971	0644	edit dl rm
atmel_pdc.h	1502	0644	edit dl rm
atmel_tc.h	11600	0644	edit dl rm
atm_suni.h	253	0644	edit dl rm
atm_tcp.h	511	0644	edit dl rm
atomic.h	37546	0644	edit dl rm
attribute_container.h	2799	0644	edit dl rm
audit.h	20332	0644	edit dl rm
audit_arch.h	559	0644	edit dl rm
auto_dev-ioctl.h	454	0644	edit dl rm
auto_fs.h	436	0644	edit dl rm
auxiliary_bus.h	2787	0644	edit dl rm
auxvec.h	304	0644	edit dl rm
average.h	2481	0644	edit dl rm
b1pcmcia.h	666	0644	edit dl rm
backing-dev-defs.h	10327	0644	edit dl rm
backing-dev.h	12260	0644	edit dl rm
backlight.h	13447	0644	edit dl rm
badblocks.h	2188	0644	edit dl rm
balloon_compaction.h	6745	0644	edit dl rm
bcd.h	559	0644	edit dl rm
bch.h	2660	0644	edit dl rm
bcm47xx_nvram.h	1247	0644	edit dl rm
bcm47xx_sprom.h	600	0644	edit dl rm
bcm47xx_wdt.h	555	0644	edit dl rm
bcm963xx_nvram.h	3036	0644	edit dl rm
bcm963xx_tag.h	3685	0644	edit dl rm
binfmts.h	5443	0644	edit dl rm
bio.h	20690	0644	edit dl rm
bitfield.h	5899	0644	edit dl rm
bitmap.h	21496	0644	edit dl rm
bitops.h	8870	0644	edit dl rm
bitrev.h	2541	0644	edit dl rm
bits.h	1512	0644	edit dl rm
bit_spinlock.h	2360	0644	edit dl rm
blk-cgroup.h	22728	0644	edit dl rm
blk-mq-pci.h	269	0644	edit dl rm
blk-mq-rdma.h	234	0644	edit dl rm
blk-mq-virtio.h	293	0644	edit dl rm
blk-mq.h	16074	0644	edit dl rm
blk-pm.h	717	0644	edit dl rm
blkdev.h	58898	0644	edit dl rm
blkpg.h	436	0644	edit dl rm
blktrace_api.h	3777	0644	edit dl rm
blk_types.h	15342	0644	edit dl rm
blockgroup_lock.h	810	0644	edit dl rm
bma150.h	1938	0644	edit dl rm
bottom_half.h	803	0644	edit dl rm
bpf-cgroup.h	19818	0644	edit dl rm
bpf-netns.h	1559	0644	edit dl rm
bpf.h	72824	0644	edit dl rm
bpfilter.h	791	0644	edit dl rm
bpfptr.h	1733	0644	edit dl rm
bpf_lirc.h	698	0644	edit dl rm
bpf_local_storage.h	5349	0644	edit dl rm
bpf_lsm.h	1431	0644	edit dl rm
bpf_trace.h	166	0644	edit dl rm
bpf_types.h	5395	0644	edit dl rm
bpf_verifier.h	18791	0644	edit dl rm
brcmphy.h	14023	0644	edit dl rm
bsearch.h	275	0644	edit dl rm
bsg-lib.h	2455	0644	edit dl rm
bsg.h	1094	0644	edit dl rm
btf.h	7363	0644	edit dl rm
btf_ids.h	5174	0644	edit dl rm
btree-128.h	2737	0644	edit dl rm
btree-type.h	3991	0644	edit dl rm
btree.h	6999	0644	edit dl rm
btrfs.h	145	0644	edit dl rm
buffer_head.h	14379	0644	edit dl rm
bug.h	1967	0644	edit dl rm
buildid.h	248	0644	edit dl rm
build_bug.h	3066	0644	edit dl rm
bvec.h	4119	0644	edit dl rm
c2port.h	1529	0644	edit dl rm
cache.h	2182	0644	edit dl rm
cacheinfo.h	4796	0644	edit dl rm
capability.h	8179	0644	edit dl rm
cb710.h	5827	0644	edit dl rm
cciss_ioctl.h	1053	0644	edit dl rm
ccp.h	18697	0644	edit dl rm
cc_platform.h	3140	0644	edit dl rm
cdev.h	845	0644	edit dl rm
cdrom.h	9193	0644	edit dl rm
cfag12864b.h	1499	0644	edit dl rm
cgroup-defs.h	27242	0644	edit dl rm
cgroup.h	28880	0644	edit dl rm
cgroup_rdma.h	1358	0644	edit dl rm
cgroup_subsys.h	1259	0644	edit dl rm
circ_buf.h	1120	0644	edit dl rm
cleancache.h	3982	0644	edit dl rm
cleanup.h	14215	0644	edit dl rm
clk-provider.h	37542	0644	edit dl rm
clk.h	25157	0644	edit dl rm
clkdev.h	1698	0644	edit dl rm
clockchips.h	7445	0644	edit dl rm
clocksource.h	9188	0644	edit dl rm
clock_cooling.h	2106	0644	edit dl rm
cm4000_cs.h	199	0644	edit dl rm
cma.h	1212	0644	edit dl rm
cmdline-parser.h	1238	0644	edit dl rm
cnt32_to_63.h	3691	0644	edit dl rm
cn_proc.h	1890	0644	edit dl rm
coda.h	2244	0644	edit dl rm
coda_psdev.h	2692	0644	edit dl rm
compaction.h	7654	0644	edit dl rm
compat.h	35739	0644	edit dl rm
compat_time.h	499	0644	edit dl rm
compiler-clang.h	2446	0644	edit dl rm
compiler-gcc.h	5756	0644	edit dl rm
compiler-intel.h	949	0644	edit dl rm
compiler.h	15718	0644	edit dl rm
compiler_attributes.h	10600	0644	edit dl rm
compiler_types.h	6931	0644	edit dl rm
completion.h	4201	0644	edit dl rm
component.h	4459	0644	edit dl rm
concap.h	3778	0644	edit dl rm
configfs.h	9441	0644	edit dl rm
connector.h	2490	0644	edit dl rm
console.h	7504	0644	edit dl rm
consolemap.h	1068	0644	edit dl rm
console_struct.h	6966	0644	edit dl rm
const.h	421	0644	edit dl rm
container.h	668	0644	edit dl rm
container_of.h	1278	0644	edit dl rm
context_tracking.h	5168	0644	edit dl rm
context_tracking_state.h	1529	0644	edit dl rm
cookie.h	1254	0644	edit dl rm
cordic.h	1794	0644	edit dl rm
coredump.h	797	0644	edit dl rm
coresight-pmu.h	989	0644	edit dl rm
coresight-stm.h	152	0644	edit dl rm
coresight.h	9676	0644	edit dl rm
counter.h	15497	0644	edit dl rm
counter_enum.h	1463	0644	edit dl rm
count_zeros.h	1660	0644	edit dl rm
cper.h	16826	0644	edit dl rm
cpu.h	7959	0644	edit dl rm
cpufeature.h	1882	0644	edit dl rm
cpufreq.h	34248	0644	edit dl rm
cpuhotplug.h	14269	0644	edit dl rm
cpuidle.h	13061	0644	edit dl rm
cpuidle_haltpoll.h	312	0644	edit dl rm
cpumask.h	29721	0644	edit dl rm
cpuset.h	8297	0644	edit dl rm
cpu_cooling.h	2389	0644	edit dl rm
cpu_pm.h	2850	0644	edit dl rm
cpu_rmap.h	1902	0644	edit dl rm
crash_core.h	3292	0644	edit dl rm
crash_dump.h	5193	0644	edit dl rm
crc-ccitt.h	609	0644	edit dl rm
crc-itu-t.h	613	0644	edit dl rm
crc-t10dif.h	453	0644	edit dl rm
crc4.h	192	0644	edit dl rm
crc7.h	316	0644	edit dl rm
crc8.h	3747	0644	edit dl rm
crc16.h	622	0644	edit dl rm
crc32.h	2894	0644	edit dl rm
crc32c.h	331	0644	edit dl rm
crc32poly.h	610	0644	edit dl rm
cred.h	12749	0644	edit dl rm
crypto.h	59393	0644	edit dl rm
cryptohash.h	546	0644	edit dl rm
cs5535.h	6426	0644	edit dl rm
ctype.h	1791	0644	edit dl rm
cuda.h	501	0644	edit dl rm
cxl_err.h	468	0644	edit dl rm
cyclades.h	10607	0644	edit dl rm
damon.h	19616	0644	edit dl rm
davinci_emac.h	1150	0644	edit dl rm
dax.h	7553	0644	edit dl rm
dca.h	2698	0644	edit dl rm
dcache.h	19621	0644	edit dl rm
dccp.h	10989	0644	edit dl rm
dcookies.h	1329	0644	edit dl rm
debugfs.h	11921	0644	edit dl rm
debugobjects.h	3988	0644	edit dl rm
debug_locks.h	1627	0644	edit dl rm
delay.h	2335	0644	edit dl rm
delayacct.h	6285	0644	edit dl rm
delayed_call.h	709	0644	edit dl rm
dell-led.h	128	0644	edit dl rm
devcoredump.h	2849	0644	edit dl rm
devfreq-event.h	5778	0644	edit dl rm
devfreq.h	12987	0644	edit dl rm
devfreq_cooling.h	3608	0644	edit dl rm
device-mapper.h	19529	0644	edit dl rm
device.h	67275	0644	edit dl rm
device_cgroup.h	1680	0644	edit dl rm
devm-helpers.h	2740	0644	edit dl rm
devpts_fs.h	1314	0644	edit dl rm
dev_printk.h	7731	0644	edit dl rm
digsig.h	1379	0644	edit dl rm
dim.h	8951	0644	edit dl rm
dio.h	11229	0644	edit dl rm
dirent.h	216	0644	edit dl rm
dlm.h	7240	0644	edit dl rm
dlm_plock.h	678	0644	edit dl rm
dm-bufio.h	4574	0644	edit dl rm
dm-dirty-log.h	4038	0644	edit dl rm
dm-io.h	1980	0644	edit dl rm
dm-kcopyd.h	3013	0644	edit dl rm
dm-region-hash.h	3182	0644	edit dl rm
dm9000.h	1136	0644	edit dl rm
dma-buf.h	21547	0644	edit dl rm
dma-contiguous.h	5070	0644	edit dl rm
dma-direct.h	3681	0644	edit dl rm
dma-direction.h	407	0644	edit dl rm
dma-fence-array.h	2983	0644	edit dl rm
dma-fence-chain.h	3576	0644	edit dl rm
dma-fence-unwrap.h	2298	0644	edit dl rm
dma-fence.h	21162	0644	edit dl rm
dma-iommu.h	3020	0644	edit dl rm
dma-map-ops.h	10863	0644	edit dl rm
dma-mapping.h	23170	0644	edit dl rm
dma-resv.h	17245	0644	edit dl rm
dmaengine.h	54891	0644	edit dl rm
dmapool.h	1832	0644	edit dl rm
dmar.h	8791	0644	edit dl rm
dmi.h	4375	0644	edit dl rm
dnotify.h	1047	0644	edit dl rm
dns_resolver.h	1339	0644	edit dl rm
dqblk_qtree.h	2238	0644	edit dl rm
dqblk_v1.h	327	0644	edit dl rm
dqblk_v2.h	406	0644	edit dl rm
drbd.h	10923	0644	edit dl rm
drbd_genl.h	22010	0644	edit dl rm
drbd_genl_api.h	1808	0644	edit dl rm
drbd_limits.h	8003	0644	edit dl rm
ds2782_battery.h	158	0644	edit dl rm
dtlk.h	3584	0644	edit dl rm
dw_apb_timer.h	1743	0644	edit dl rm
dynamic_debug.h	5831	0644	edit dl rm
dynamic_queue_limits.h	3812	0644	edit dl rm
earlycpio.h	359	0644	edit dl rm
ecryptfs.h	3915	0644	edit dl rm
edac.h	20718	0644	edit dl rm
edd.h	1469	0644	edit dl rm
edma.h	807	0644	edit dl rm
eeprom_93cx6.h	3008	0644	edit dl rm
eeprom_93xx46.h	776	0644	edit dl rm
efi-bgrt.h	644	0644	edit dl rm
efi.h	62813	0644	edit dl rm
efs_vh.h	1585	0644	edit dl rm
eisa.h	3031	0644	edit dl rm
elevator.h	6059	0644	edit dl rm
elf-fdpic.h	2237	0644	edit dl rm
elf-randomize.h	583	0644	edit dl rm
elf.h	1565	0644	edit dl rm
elfcore-compat.h	1267	0644	edit dl rm
elfcore.h	2160	0644	edit dl rm
elfnote.h	3625	0644	edit dl rm
enclosure.h	4711	0644	edit dl rm
energy_model.h	5994	0644	edit dl rm
err.h	1583	0644	edit dl rm
errname.h	283	0644	edit dl rm
errno.h	1424	0644	edit dl rm
error-injection.h	607	0644	edit dl rm
errqueue.h	524	0644	edit dl rm
errseq.h	382	0644	edit dl rm
etherdevice.h	16917	0644	edit dl rm
ethtool.h	35580	0644	edit dl rm
ethtool_netlink.h	1920	0644	edit dl rm
eventfd.h	2167	0644	edit dl rm
eventpoll.h	2457	0644	edit dl rm
evm.h	2985	0644	edit dl rm
export.h	3697	0644	edit dl rm
exportfs.h	7692	0644	edit dl rm
ext2_fs.h	967	0644	edit dl rm
extable.h	1309	0644	edit dl rm
extcon-provider.h	4431	0644	edit dl rm
extcon.h	10270	0644	edit dl rm
f2fs_fs.h	18526	0644	edit dl rm
f75375s.h	541	0644	edit dl rm
falloc.h	1719	0644	edit dl rm
fanotify.h	2336	0644	edit dl rm
fault-inject.h	1975	0644	edit dl rm
fb.h	28712	0644	edit dl rm
fbcon.h	2136	0644	edit dl rm
fcdevice.h	988	0644	edit dl rm
fcntl.h	1808	0644	edit dl rm
fd.h	490	0644	edit dl rm
fddidevice.h	1044	0644	edit dl rm
fdtable.h	3616	0644	edit dl rm
fec.h	609	0644	edit dl rm
file.h	3147	0644	edit dl rm
filter.h	42781	0644	edit dl rm
fips.h	167	0644	edit dl rm
firewire.h	13868	0644	edit dl rm
firmware-map.h	1351	0644	edit dl rm
firmware.h	5874	0644	edit dl rm
fixp-arith.h	4516	0644	edit dl rm
flat.h	1653	0644	edit dl rm
flex_array.h	4412	0644	edit dl rm
flex_proportions.h	2881	0644	edit dl rm
fmc-sdb.h	1319	0644	edit dl rm
fmc.h	9877	0644	edit dl rm
font.h	1598	0644	edit dl rm
fortify-string.h	16550	0644	edit dl rm
freezer.h	9257	0644	edit dl rm
frontswap.h	3121	0644	edit dl rm
fs.h	117740	0644	edit dl rm
fscache-cache.h	19254	0644	edit dl rm
fscache.h	29577	0644	edit dl rm
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fsi.h	2424	0644	edit dl rm
fsl-diu-fb.h	4179	0644	edit dl rm
fsldma.h	398	0644	edit dl rm
fsl_devices.h	4430	0644	edit dl rm
fsl_hypervisor.h	2824	0644	edit dl rm
fsl_ifc.h	25658	0644	edit dl rm
fsnotify.h	7796	0644	edit dl rm
fsnotify_backend.h	20595	0644	edit dl rm
fs_context.h	9097	0644	edit dl rm
fs_enet_pd.h	3457	0644	edit dl rm
fs_parser.h	4750	0644	edit dl rm
fs_pin.h	619	0644	edit dl rm
fs_stack.h	811	0644	edit dl rm
fs_struct.h	1751	0644	edit dl rm
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ftrace_irq.h	1163	0644	edit dl rm
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gameport.h	5695	0644	edit dl rm
gcd.h	193	0644	edit dl rm
genalloc.h	7950	0644	edit dl rm
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genetlink.h	1379	0644	edit dl rm
genhd.h	16076	0644	edit dl rm
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getcpu.h	641	0644	edit dl rm
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glob.h	256	0644	edit dl rm
goldfish.h	605	0644	edit dl rm
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gpio.h	5478	0644	edit dl rm
gpio_keys.h	1782	0644	edit dl rm
hardirq.h	3264	0644	edit dl rm
hash.h	2998	0644	edit dl rm
hashtable.h	6805	0644	edit dl rm
hdlc.h	3413	0644	edit dl rm
hdlcdrv.h	6470	0644	edit dl rm
hdmi.h	12851	0644	edit dl rm
hid-debug.h	1458	0644	edit dl rm
hid-roccat.h	484	0644	edit dl rm
hid-sensor-hub.h	9190	0644	edit dl rm
hid-sensor-ids.h	7617	0644	edit dl rm
hid.h	38339	0644	edit dl rm
hidden.h	966	0644	edit dl rm
hiddev.h	1458	0644	edit dl rm
hidraw.h	1146	0644	edit dl rm
highmem-internal.h	4952	0644	edit dl rm
highmem.h	8235	0644	edit dl rm
highuid.h	3194	0644	edit dl rm
hil.h	18857	0644	edit dl rm
hil_mlc.h	5249	0644	edit dl rm
hippidevice.h	1263	0644	edit dl rm
hmm.h	4656	0644	edit dl rm
host1x.h	8618	0644	edit dl rm
hpet.h	2615	0644	edit dl rm
hp_sdc.h	14352	0644	edit dl rm
hrtimer.h	16651	0644	edit dl rm
hrtimer_defs.h	660	0644	edit dl rm
htcpld.h	617	0644	edit dl rm
hugetlb.h	27496	0644	edit dl rm
hugetlb_cgroup.h	7056	0644	edit dl rm
hugetlb_inline.h	374	0644	edit dl rm
huge_mm.h	15743	0644	edit dl rm
hwmon-sysfs.h	2024	0644	edit dl rm
hwmon-vid.h	1518	0644	edit dl rm
hwmon.h	14084	0644	edit dl rm
hwspinlock.h	13044	0644	edit dl rm
hw_breakpoint.h	4405	0644	edit dl rm
hw_random.h	2377	0644	edit dl rm
hyperv.h	50010	0644	edit dl rm
hypervisor.h	748	0644	edit dl rm
i2c-algo-bit.h	2322	0644	edit dl rm
i2c-algo-pca.h	2599	0644	edit dl rm
i2c-algo-pcf.h	1926	0644	edit dl rm
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Edit: /usr/src/kernels/4.18.0-553.121.1.el8_10.x86_64/include/linux/device.h (67275B)

// SPDX-License-Identifier: GPL-2.0
/*
 * device.h - generic, centralized driver model
 *
 * Copyright (c) 2001-2003 Patrick Mochel <mochel@osdl.org>
 * Copyright (c) 2004-2009 Greg Kroah-Hartman <gregkh@suse.de>
 * Copyright (c) 2008-2009 Novell Inc.
 *
 * See Documentation/driver-model/ for more information.
 */

#ifndef _DEVICE_H_
#define _DEVICE_H_

#include <linux/dev_printk.h>
#include <linux/ioport.h>
#include <linux/kobject.h>
#include <linux/klist.h>
#include <linux/list.h>
#include <linux/lockdep.h>
#include <linux/compiler.h>
#include <linux/types.h>
#include <linux/mutex.h>
#include <linux/pm.h>
#include <linux/atomic.h>
#include <linux/uidgid.h>
#include <linux/gfp.h>
#include <linux/overflow.h>
#include <linux/rh_kabi.h>
#include <linux/cleanup.h>
#include <asm/device.h>

struct device;
struct device_private;
struct device_driver;
struct driver_private;
struct module;
struct class;
struct subsys_private;
struct bus_type;
struct device_node;
struct fwnode_handle;
struct iommu_ops;
struct iommu_group;
struct iommu_fwspec;
struct dev_pin_info;
struct dev_iommu;

struct bus_attribute {
	struct attribute	attr;
	ssize_t (*show)(struct bus_type *bus, char *buf);
	ssize_t (*store)(struct bus_type *bus, const char *buf, size_t count);
};

#define BUS_ATTR(_name, _mode, _show, _store)	\
	struct bus_attribute bus_attr_##_name = __ATTR(_name, _mode, _show, _store)
#define BUS_ATTR_RW(_name) \
	struct bus_attribute bus_attr_##_name = __ATTR_RW(_name)
#define BUS_ATTR_RO(_name) \
	struct bus_attribute bus_attr_##_name = __ATTR_RO(_name)
#define BUS_ATTR_WO(_name) \
	struct bus_attribute bus_attr_##_name = __ATTR_WO(_name)

int __must_check bus_create_file(const struct bus_type *bus, struct bus_attribute *attr);
void bus_remove_file(const struct bus_type *bus, struct bus_attribute *attr);

/**
 * struct bus_type - The bus type of the device
 *
 * @name:	The name of the bus.
 * @dev_name:	Used for subsystems to enumerate devices like ("foo%u", dev->id).
 * @dev_root:	Default device to use as the parent.
 * @bus_groups:	Default attributes of the bus.
 * @dev_groups:	Default attributes of the devices on the bus.
 * @drv_groups: Default attributes of the device drivers on the bus.
 * @match:	Called, perhaps multiple times, whenever a new device or driver
 *		is added for this bus. It should return a positive value if the
 *		given device can be handled by the given driver and zero
 *		otherwise. It may also return error code if determining that
 *		the driver supports the device is not possible. In case of
 *		-EPROBE_DEFER it will queue the device for deferred probing.
 * @uevent:	Called when a device is added, removed, or a few other things
 *		that generate uevents to add the environment variables.
 * @probe:	Called when a new device or driver add to this bus, and callback
 *		the specific driver's probe to initial the matched device.
 * @sync_state:	Called to sync device state to software state after all the
 *		state tracking consumers linked to this device (present at
 *		the time of late_initcall) have successfully bound to a
 *		driver. If the device has no consumers, this function will
 *		be called at late_initcall_sync level. If the device has
 *		consumers that are never bound to a driver, this function
 *		will never get called until they do.
 * @remove:	Called when a device removed from this bus.
 * @shutdown:	Called at shut-down time to quiesce the device.
 *
 * @online:	Called to put the device back online (after offlining it).
 * @offline:	Called to put the device offline for hot-removal. May fail.
 *
 * @suspend:	Called when a device on this bus wants to go to sleep mode.
 * @resume:	Called to bring a device on this bus out of sleep mode.
 * @num_vf:	Called to find out how many virtual functions a device on this
 *		bus supports.
 * @dma_configure:	Called to setup DMA configuration on a device on
 *			this bus.
 * @dma_cleanup:	Called to cleanup DMA configuration on a device on
 *			this bus.
 * @pm:		Power management operations of this bus, callback the specific
 *		device driver's pm-ops.
 * @iommu_ops:  IOMMU specific operations for this bus, used to attach IOMMU
 *              driver implementations to a bus and allow the driver to do
 *              bus-specific setup
 * @p:		The private data of the driver core, only the driver core can
 *		touch this.
 * @need_parent_lock:	When probing or removing a device on this bus, the
 *			device core should lock the device's parent.
 *
 * A bus is a channel between the processor and one or more devices. For the
 * purposes of the device model, all devices are connected via a bus, even if
 * it is an internal, virtual, "platform" bus. Buses can plug into each other.
 * A USB controller is usually a PCI device, for example. The device model
 * represents the actual connections between buses and the devices they control.
 * A bus is represented by the bus_type structure. It contains the name, the
 * default attributes, the bus' methods, PM operations, and the driver core's
 * private data.
 */
struct bus_type {
	const char		*name;
	const char		*dev_name;
	struct device		*dev_root;
	const struct attribute_group **bus_groups;
	const struct attribute_group **dev_groups;
	const struct attribute_group **drv_groups;

int (*match)(struct device *dev, struct device_driver *drv);
	int (*uevent)(struct device *dev, struct kobj_uevent_env *env);
	int (*probe)(struct device *dev);
	int (*remove)(struct device *dev);
	void (*shutdown)(struct device *dev);

int (*online)(struct device *dev);
	int (*offline)(struct device *dev);

int (*suspend)(struct device *dev, pm_message_t state);
	int (*resume)(struct device *dev);

int (*num_vf)(struct device *dev);

int (*dma_configure)(struct device *dev);

const struct dev_pm_ops *pm;

const struct iommu_ops *iommu_ops;

struct subsys_private *p;
	RH_KABI_DEPRECATE(struct lock_class_key, lock_key)

bool need_parent_lock;

RH_KABI_EXTEND(void (*sync_state)(struct device *dev))
	RH_KABI_EXTEND(void (*dma_cleanup)(struct device *dev))
};

extern int __must_check bus_register(struct bus_type *bus);

extern void bus_unregister(const struct bus_type *bus);

extern int __must_check bus_rescan_devices(struct bus_type *bus);

/* iterator helpers for buses */

int device_match_acpi_dev(struct device *dev, const void *adev);
int device_match_acpi_handle(struct device *dev, const void *handle);
int device_match_name(struct device *dev, const void *name);
int device_match_of_node(struct device *dev, const void *np);
int device_match_fwnode(struct device *dev, const void *fwnode);
int device_match_devt(struct device *dev, const void *pdevt);

int bus_for_each_dev(const struct bus_type *bus, struct device *start, void *data,
		     int (*fn)(struct device *dev, void *data));
struct device *bus_find_device(const struct bus_type *bus, struct device *start,
			       const void *data,
			       int (*match)(struct device *dev, const void *data));
/**
 * bus_find_device_by_name - device iterator for locating a particular device
 * of a specific name.
 * @bus: bus type
 * @start: Device to begin with
 * @name: name of the device to match
 */
static inline struct device *bus_find_device_by_name(const struct bus_type *bus,
						     struct device *start,
						     const char *name)
{
	return bus_find_device(bus, start, name, device_match_name);
}

/**
 * bus_find_device_by_of_node : device iterator for locating a particular device
 * matching the of_node.
 * @bus: bus type
 * @np: of_node of the device to match.
 */
static inline struct device *
bus_find_device_by_of_node(const struct bus_type *bus, const struct device_node *np)
{
	return bus_find_device(bus, NULL, np, device_match_of_node);
}

/**
 * bus_find_device_by_fwnode : device iterator for locating a particular device
 * matching the fwnode.
 * @bus: bus type
 * @fwnode: fwnode of the device to match.
 */
static inline struct device *
bus_find_device_by_fwnode(const struct bus_type *bus, const struct fwnode_handle *fwnode)
{
	return bus_find_device(bus, NULL, fwnode, device_match_fwnode);
}

/**
 * bus_find_device_by_devt : device iterator for locating a particular device
 * matching the device type.
 * @bus: bus type
 * @devt: device type of the device to match.
 */
static inline struct device *bus_find_device_by_devt(const struct bus_type *bus,
						     dev_t devt)
{
	return bus_find_device(bus, NULL, &devt, device_match_devt);
}

#ifdef CONFIG_ACPI
struct acpi_device;

/**
 * bus_find_device_by_acpi_dev : device iterator for locating a particular device
 * matching the ACPI COMPANION device.
 * @bus: bus type
 * @adev: ACPI COMPANION device to match.
 */
static inline struct device *
bus_find_device_by_acpi_dev(const struct bus_type *bus, const struct acpi_device *adev)
{
	return bus_find_device(bus, NULL, adev, device_match_acpi_dev);
}
#else
static inline struct device *
bus_find_device_by_acpi_dev(const struct bus_type *bus, const void *adev)
{
	return NULL;
}
#endif

int bus_for_each_drv(const struct bus_type *bus, struct device_driver *start,
		     void *data, int (*fn)(struct device_driver *, void *));
void bus_sort_breadthfirst(struct bus_type *bus,
			   int (*compare)(const struct device *a,
					  const struct device *b));
/*
 * Bus notifiers: Get notified of addition/removal of devices
 * and binding/unbinding of drivers to devices.
 * In the long run, it should be a replacement for the platform
 * notify hooks.
 */
struct notifier_block;

extern int bus_register_notifier(const struct bus_type *bus,
				 struct notifier_block *nb);
extern int bus_unregister_notifier(const struct bus_type *bus,
				   struct notifier_block *nb);

/**
 * enum bus_notifier_event - Bus Notifier events that have happened
 * @BUS_NOTIFY_ADD_DEVICE: device is added to this bus
 * @BUS_NOTIFY_DEL_DEVICE: device is about to be removed from this bus
 * @BUS_NOTIFY_REMOVED_DEVICE: device is successfully removed from this bus
 * @BUS_NOTIFY_BIND_DRIVER: a driver is about to be bound to this device on this bus
 * @BUS_NOTIFY_BOUND_DRIVER: a driver is successfully bound to this device on this bus
 * @BUS_NOTIFY_UNBIND_DRIVER: a driver is about to be unbound from this device on this bus
 * @BUS_NOTIFY_UNBOUND_DRIVER: a driver is successfully unbound from this device on this bus
 * @BUS_NOTIFY_DRIVER_NOT_BOUND: a driver failed to be bound to this device on this bus
 *
 * These are the value passed to a bus notifier when a specific event happens.
 *
 * Note that bus notifiers are likely to be called with the device lock already
 * held by the driver core, so be careful in any notifier callback as to what
 * you do with the device structure.
 *
 * All bus notifiers are called with the target struct device * as an argument.
 */
enum bus_notifier_event {
	BUS_NOTIFY_ADD_DEVICE,
	BUS_NOTIFY_DEL_DEVICE,
	BUS_NOTIFY_REMOVED_DEVICE,
	BUS_NOTIFY_BIND_DRIVER,
	BUS_NOTIFY_BOUND_DRIVER,
	BUS_NOTIFY_UNBIND_DRIVER,
	BUS_NOTIFY_UNBOUND_DRIVER,
	BUS_NOTIFY_DRIVER_NOT_BOUND,
};

extern struct kset *bus_get_kset(const struct bus_type *bus);
struct device *bus_get_dev_root(const struct bus_type *bus);

/**
 * enum probe_type - device driver probe type to try
 *	Device drivers may opt in for special handling of their
 *	respective probe routines. This tells the core what to
 *	expect and prefer.
 *
 * @PROBE_DEFAULT_STRATEGY: Used by drivers that work equally well
 *	whether probed synchronously or asynchronously.
 * @PROBE_PREFER_ASYNCHRONOUS: Drivers for "slow" devices which
 *	probing order is not essential for booting the system may
 *	opt into executing their probes asynchronously.
 * @PROBE_FORCE_SYNCHRONOUS: Use this to annotate drivers that need
 *	their probe routines to run synchronously with driver and
 *	device registration (with the exception of -EPROBE_DEFER
 *	handling - re-probing always ends up being done asynchronously).
 *
 * Note that the end goal is to switch the kernel to use asynchronous
 * probing by default, so annotating drivers with
 * %PROBE_PREFER_ASYNCHRONOUS is a temporary measure that allows us
 * to speed up boot process while we are validating the rest of the
 * drivers.
 */
enum probe_type {
	PROBE_DEFAULT_STRATEGY,
	PROBE_PREFER_ASYNCHRONOUS,
	PROBE_FORCE_SYNCHRONOUS,
};

/**
 * struct device_driver_rh - Red Hat KABI extension struct
 */
struct device_driver_rh {
};

/**
 * struct device_driver - The basic device driver structure
 * @name:	Name of the device driver.
 * @bus:	The bus which the device of this driver belongs to.
 * @owner:	The module owner.
 * @mod_name:	Used for built-in modules.
 * @suppress_bind_attrs: Disables bind/unbind via sysfs.
 * @probe_type:	Type of the probe (synchronous or asynchronous) to use.
 * @of_match_table: The open firmware table.
 * @acpi_match_table: The ACPI match table.
 * @probe:	Called to query the existence of a specific device,
 *		whether this driver can work with it, and bind the driver
 *		to a specific device.
 * @sync_state:	Called to sync device state to software state after all the
 *		state tracking consumers linked to this device (present at
 *		the time of late_initcall) have successfully bound to a
 *		driver. If the device has no consumers, this function will
 *		be called at late_initcall_sync level. If the device has
 *		consumers that are never bound to a driver, this function
 *		will never get called until they do.
 * @remove:	Called when the device is removed from the system to
 *		unbind a device from this driver.
 * @shutdown:	Called at shut-down time to quiesce the device.
 * @suspend:	Called to put the device to sleep mode. Usually to a
 *		low power state.
 * @resume:	Called to bring a device from sleep mode.
 * @groups:	Default attributes that get created by the driver core
 *		automatically.
 * @dev_groups:	Additional attributes attached to device instance once the
 *		it is bound to the driver.
 * @pm:		Power management operations of the device which matched
 *		this driver.
 * @coredump:	Called when sysfs entry is written to. The device driver
 *		is expected to call the dev_coredump API resulting in a
 *		uevent.
 * @p:		Driver core's private data, no one other than the driver
 *		core can touch this.
 *
 * The device driver-model tracks all of the drivers known to the system.
 * The main reason for this tracking is to enable the driver core to match
 * up drivers with new devices. Once drivers are known objects within the
 * system, however, a number of other things become possible. Device drivers
 * can export information and configuration variables that are independent
 * of any specific device.
 */
struct device_driver {
	const char		*name;
	struct bus_type		*bus;

struct module		*owner;
	const char		*mod_name;	/* used for built-in modules */

bool suppress_bind_attrs;	/* disables bind/unbind via sysfs */
	enum probe_type probe_type;

const struct of_device_id	*of_match_table;
	const struct acpi_device_id	*acpi_match_table;

int (*probe) (struct device *dev);
	int (*remove) (struct device *dev);
	void (*shutdown) (struct device *dev);
	int (*suspend) (struct device *dev, pm_message_t state);
	int (*resume) (struct device *dev);
	const struct attribute_group **groups;

const struct dev_pm_ops *pm;
	void (*coredump) (struct device *dev);

struct driver_private *p;
	RH_KABI_USE(1, const struct attribute_group **dev_groups)
	RH_KABI_USE(2, void (*sync_state)(struct device *dev))
	RH_KABI_RESERVE(3)
	RH_KABI_RESERVE(4)
	RH_KABI_AUX_PTR(device_driver);
};

extern int __must_check driver_register(struct device_driver *drv);
extern void driver_unregister(struct device_driver *drv);

extern struct device_driver *driver_find(const char *name,
					 struct bus_type *bus);
extern int driver_probe_done(void);
extern void wait_for_device_probe(void);
void __init wait_for_init_devices_probe(void);

/* sysfs interface for exporting driver attributes */

struct driver_attribute {
	struct attribute attr;
	ssize_t (*show)(struct device_driver *driver, char *buf);
	ssize_t (*store)(struct device_driver *driver, const char *buf,
			 size_t count);
};

#define DRIVER_ATTR_RW(_name) \
	struct driver_attribute driver_attr_##_name = __ATTR_RW(_name)
#define DRIVER_ATTR_RO(_name) \
	struct driver_attribute driver_attr_##_name = __ATTR_RO(_name)
#define DRIVER_ATTR_WO(_name) \
	struct driver_attribute driver_attr_##_name = __ATTR_WO(_name)

extern int __must_check driver_create_file(struct device_driver *driver,
					const struct driver_attribute *attr);
extern void driver_remove_file(struct device_driver *driver,
			       const struct driver_attribute *attr);

int driver_set_override(struct device *dev, const char **override,
			const char *s, size_t len);
extern int __must_check driver_for_each_device(struct device_driver *drv,
					       struct device *start,
					       void *data,
					       int (*fn)(struct device *dev,
							 void *));
struct device *driver_find_device(struct device_driver *drv,
				  struct device *start, const void *data,
				  int (*match)(struct device *dev, const void *data));

#ifdef CONFIG_ACPI
/**
 * driver_find_device_by_acpi_dev : device iterator for locating a particular
 * device matching the ACPI_COMPANION device.
 * @driver: the driver we're iterating
 * @adev: ACPI_COMPANION device to match.
 */
static inline struct device *
driver_find_device_by_acpi_dev(struct device_driver *drv,
			       const struct acpi_device *adev)
{
	return driver_find_device(drv, NULL, adev, device_match_acpi_dev);
}
#else
static inline struct device *
driver_find_device_by_acpi_dev(struct device_driver *drv, const void *adev)
{
	return NULL;
}
#endif

/**
 * driver_find_device_by_name - device iterator for locating a particular device
 * of a specific name.
 * @driver: the driver we're iterating
 * @name: name of the device to match
 */
static inline struct device *driver_find_device_by_name(struct device_driver *drv,
							const char *name)
{
	return driver_find_device(drv, NULL, name, device_match_name);
}

/**
 * driver_find_device_by_of_node- device iterator for locating a particular device
 * by of_node pointer.
 * @driver: the driver we're iterating
 * @np: of_node pointer to match.
 */
static inline struct device *
driver_find_device_by_of_node(struct device_driver *drv,
			      const struct device_node *np)
{
	return driver_find_device(drv, NULL, np, device_match_of_node);
}

/**
 * driver_find_device_by_fwnode- device iterator for locating a particular device
 * by fwnode pointer.
 * @driver: the driver we're iterating
 * @fwnode: fwnode pointer to match.
 */
static inline struct device *
driver_find_device_by_fwnode(struct device_driver *drv,
			     const struct fwnode_handle *fwnode)
{
	return driver_find_device(drv, NULL, fwnode, device_match_fwnode);
}

/**
 * driver_find_device_by_devt- device iterator for locating a particular device
 * by devt.
 * @driver: the driver we're iterating
 * @devt: devt pointer to match.
 */
static inline struct device *driver_find_device_by_devt(struct device_driver *drv,
							dev_t devt)
{
	return driver_find_device(drv, NULL, &devt, device_match_devt);
}

void driver_deferred_probe_add(struct device *dev);
int driver_deferred_probe_check_state(struct device *dev);
int driver_deferred_probe_check_state_continue(struct device *dev);

/**
 * struct subsys_interface - interfaces to device functions
 * @name:       name of the device function
 * @subsys:     subsytem of the devices to attach to
 * @node:       the list of functions registered at the subsystem
 * @add_dev:    device hookup to device function handler
 * @remove_dev: device hookup to device function handler
 *
 * Simple interfaces attached to a subsystem. Multiple interfaces can
 * attach to a subsystem and its devices. Unlike drivers, they do not
 * exclusively claim or control devices. Interfaces usually represent
 * a specific functionality of a subsystem/class of devices.
 */
struct subsys_interface {
	const char *name;
	struct bus_type *subsys;
	struct list_head node;
	int (*add_dev)(struct device *dev, struct subsys_interface *sif);
	void (*remove_dev)(struct device *dev, struct subsys_interface *sif);
};

int subsys_interface_register(struct subsys_interface *sif);
void subsys_interface_unregister(struct subsys_interface *sif);

int subsys_system_register(struct bus_type *subsys,
			   const struct attribute_group **groups);
int subsys_virtual_register(struct bus_type *subsys,
			    const struct attribute_group **groups);

/**
 * struct class_rh - Red Hat KABI extension struct
 */
struct class_rh {
};

/**
 * struct class - device classes
 * @name:	Name of the class.
 * @owner:	The module owner.
 * @class_groups: Default attributes of this class.
 * @dev_groups:	Default attributes of the devices that belong to the class.
 * @dev_kobj:	The kobject that represents this class and links it into the hierarchy.
 * @dev_uevent:	Called when a device is added, removed from this class, or a
 *		few other things that generate uevents to add the environment
 *		variables.
 * @devnode:	Callback to provide the devtmpfs.
 * @class_release: Called to release this class.
 * @dev_release: Called to release the device.
 * @shutdown_pre: Called at shut-down time before driver shutdown.
 * @ns_type:	Callbacks so sysfs can detemine namespaces.
 * @namespace:	Namespace of the device belongs to this class.
 * @get_ownership: Allows class to specify uid/gid of the sysfs directories
 *		for the devices belonging to the class. Usually tied to
 *		device's namespace.
 * @pm:		The default device power management operations of this class.
 * @p:		The private data of the driver core, no one other than the
 *		driver core can touch this.
 *
 * A class is a higher-level view of a device that abstracts out low-level
 * implementation details. Drivers may see a SCSI disk or an ATA disk, but,
 * at the class level, they are all simply disks. Classes allow user space
 * to work with devices based on what they do, rather than how they are
 * connected or how they work.
 */
struct class {
	const char		*name;
	struct module		*owner;

const struct attribute_group	**class_groups;
	const struct attribute_group	**dev_groups;
	struct kobject			*dev_kobj;

int (*dev_uevent)(RH_KABI_CONST struct device *dev, struct kobj_uevent_env *env);
	char *(*devnode)(RH_KABI_CONST struct device *dev, umode_t *mode);

void (*class_release)(struct class *class);
	void (*dev_release)(struct device *dev);

int (*shutdown_pre)(struct device *dev);

const struct kobj_ns_type_operations *ns_type;
	const void *(*namespace)(RH_KABI_CONST struct device *dev);

const struct dev_pm_ops *pm;

struct subsys_private *p;

RH_KABI_USE(1, void (*get_ownership)(RH_KABI_CONST struct device *dev, kuid_t *uid, kgid_t *gid))
	RH_KABI_RESERVE(2)
	RH_KABI_RESERVE(3)
	RH_KABI_RESERVE(4)
	RH_KABI_AUX_PTR(class);
};

struct class_dev_iter {
	struct klist_iter		ki;
	const struct device_type	*type;
};

extern struct kobject *sysfs_dev_block_kobj;
extern struct kobject *sysfs_dev_char_kobj;
extern int __must_check __class_register(struct class *class,
					 struct lock_class_key *key);
extern void class_unregister(struct class *class);

/* This is a #define to keep the compiler from merging different
 * instances of the __key variable */
#define class_register(class)			\
({						\
	static struct lock_class_key __key;	\
	__class_register(class, &__key);	\
})

struct class_compat;
struct class_compat *class_compat_register(const char *name);
void class_compat_unregister(struct class_compat *cls);
int class_compat_create_link(struct class_compat *cls, struct device *dev,
			     struct device *device_link);
void class_compat_remove_link(struct class_compat *cls, struct device *dev,
			      struct device *device_link);

extern void class_dev_iter_init(struct class_dev_iter *iter,
				struct class *class,
				struct device *start,
				const struct device_type *type);
extern struct device *class_dev_iter_next(struct class_dev_iter *iter);
extern void class_dev_iter_exit(struct class_dev_iter *iter);

extern int class_for_each_device(struct class *class, struct device *start,
				 void *data,
				 int (*fn)(struct device *dev, void *data));
extern struct device *class_find_device(struct class *class,
					struct device *start, const void *data,
					int (*match)(struct device *, const void *));

#ifdef CONFIG_ACPI
struct acpi_device;
/**
 * class_find_device_by_acpi_dev : device iterator for locating a particular
 * device matching the ACPI_COMPANION device.
 * @class: class type
 * @adev: ACPI_COMPANION device to match.
 */
static inline struct device *
class_find_device_by_acpi_dev(struct class *class, const struct acpi_device *adev)
{
	return class_find_device(class, NULL, adev, device_match_acpi_dev);
}
#else
static inline struct device *
class_find_device_by_acpi_dev(struct class *class, const void *adev)
{
	return NULL;
}
#endif

/**
 * class_find_device_by_name - device iterator for locating a particular device
 * of a specific name.
 * @class: class type
 * @name: name of the device to match
 */
static inline struct device *class_find_device_by_name(struct class *class,
						       const char *name)
{
	return class_find_device(class, NULL, name, device_match_name);
}

/**
 * class_find_device_by_of_node : device iterator for locating a particular device
 * matching the of_node.
 * @class: class type
 * @np: of_node of the device to match.
 */
static inline struct device *
class_find_device_by_of_node(struct class *class, const struct device_node *np)
{
	return class_find_device(class, NULL, np, device_match_of_node);
}

/**
 * class_find_device_by_fwnode : device iterator for locating a particular device
 * matching the fwnode.
 * @class: class type
 * @fwnode: fwnode of the device to match.
 */
static inline struct device *
class_find_device_by_fwnode(struct class *class,
			    const struct fwnode_handle *fwnode)
{
	return class_find_device(class, NULL, fwnode, device_match_fwnode);
}

/**
 * class_find_device_by_devt : device iterator for locating a particular device
 * matching the device type.
 * @class: class type
 * @devt: device type of the device to match.
 */
static inline struct device *class_find_device_by_devt(struct class *class,
						       dev_t devt)
{
	return class_find_device(class, NULL, &devt, device_match_devt);
}

struct class_attribute {
	struct attribute attr;
	ssize_t (*show)(struct class *class, struct class_attribute *attr,
			char *buf);
	ssize_t (*store)(struct class *class, struct class_attribute *attr,
			const char *buf, size_t count);
};

#define CLASS_ATTR_RW(_name) \
	struct class_attribute class_attr_##_name = __ATTR_RW(_name)
#define CLASS_ATTR_RO(_name) \
	struct class_attribute class_attr_##_name = __ATTR_RO(_name)
#define CLASS_ATTR_WO(_name) \
	struct class_attribute class_attr_##_name = __ATTR_WO(_name)

extern int __must_check class_create_file_ns(struct class *class,
					     const struct class_attribute *attr,
					     const void *ns);
extern void class_remove_file_ns(struct class *class,
				 const struct class_attribute *attr,
				 const void *ns);

static inline int __must_check class_create_file(struct class *class,
					const struct class_attribute *attr)
{
	return class_create_file_ns(class, attr, NULL);
}

static inline void class_remove_file(struct class *class,
				     const struct class_attribute *attr)
{
	return class_remove_file_ns(class, attr, NULL);
}

/* Simple class attribute that is just a static string */
struct class_attribute_string {
	struct class_attribute attr;
	char *str;
};

/* Currently read-only only */
#define _CLASS_ATTR_STRING(_name, _mode, _str) \
	{ __ATTR(_name, _mode, show_class_attr_string, NULL), _str }
#define CLASS_ATTR_STRING(_name, _mode, _str) \
	struct class_attribute_string class_attr_##_name = \
		_CLASS_ATTR_STRING(_name, _mode, _str)

extern ssize_t show_class_attr_string(struct class *class, struct class_attribute *attr,
                        char *buf);

struct class_interface {
	struct list_head	node;
	struct class		*class;

int (*add_dev)		(struct device *, struct class_interface *);
	void (*remove_dev)	(struct device *, struct class_interface *);
};

extern int __must_check class_interface_register(struct class_interface *);
extern void class_interface_unregister(struct class_interface *);

extern struct class * __must_check __class_create(struct module *owner,
						  const char *name,
						  struct lock_class_key *key);
extern void class_destroy(struct class *cls);

/* This is a #define to keep the compiler from merging different
 * instances of the __key variable */
#define class_create(owner, name)		\
({						\
	static struct lock_class_key __key;	\
	__class_create(owner, name, &__key);	\
})

/*
 * The type of device, "struct device" is embedded in. A class
 * or bus can contain devices of different types
 * like "partitions" and "disks", "mouse" and "event".
 * This identifies the device type and carries type-specific
 * information, equivalent to the kobj_type of a kobject.
 * If "name" is specified, the uevent will contain it in
 * the DEVTYPE variable.
 */
struct device_type {
	const char *name;
	const struct attribute_group **groups;
	int (*uevent)(struct device *dev, struct kobj_uevent_env *env);
	char *(*devnode)(RH_KABI_CONST struct device *dev, umode_t *mode,
			 kuid_t *uid, kgid_t *gid);
	void (*release)(struct device *dev);

const struct dev_pm_ops *pm;
};

/* interface for exporting device attributes */
struct device_attribute {
	struct attribute	attr;
	ssize_t (*show)(struct device *dev, struct device_attribute *attr,
			char *buf);
	ssize_t (*store)(struct device *dev, struct device_attribute *attr,
			 const char *buf, size_t count);
};

struct dev_ext_attribute {
	struct device_attribute attr;
	void *var;
};

ssize_t device_show_ulong(struct device *dev, struct device_attribute *attr,
			  char *buf);
ssize_t device_store_ulong(struct device *dev, struct device_attribute *attr,
			   const char *buf, size_t count);
ssize_t device_show_int(struct device *dev, struct device_attribute *attr,
			char *buf);
ssize_t device_store_int(struct device *dev, struct device_attribute *attr,
			 const char *buf, size_t count);
ssize_t device_show_bool(struct device *dev, struct device_attribute *attr,
			char *buf);
ssize_t device_store_bool(struct device *dev, struct device_attribute *attr,
			 const char *buf, size_t count);

#define DEVICE_ATTR(_name, _mode, _show, _store) \
	struct device_attribute dev_attr_##_name = __ATTR(_name, _mode, _show, _store)
#define DEVICE_ATTR_PREALLOC(_name, _mode, _show, _store) \
	struct device_attribute dev_attr_##_name = \
		__ATTR_PREALLOC(_name, _mode, _show, _store)
#define DEVICE_ATTR_RW(_name) \
	struct device_attribute dev_attr_##_name = __ATTR_RW(_name)
#define DEVICE_ATTR_ADMIN_RW(_name) \
	struct device_attribute dev_attr_##_name = __ATTR_RW_MODE(_name, 0600)
#define DEVICE_ATTR_RO(_name) \
	struct device_attribute dev_attr_##_name = __ATTR_RO(_name)
#define DEVICE_ATTR_ADMIN_RO(_name) \
	struct device_attribute dev_attr_##_name = __ATTR_RO_MODE(_name, 0400)
#define DEVICE_ATTR_WO(_name) \
	struct device_attribute dev_attr_##_name = __ATTR_WO(_name)
#define DEVICE_ULONG_ATTR(_name, _mode, _var) \
	struct dev_ext_attribute dev_attr_##_name = \
		{ __ATTR(_name, _mode, device_show_ulong, device_store_ulong), &(_var) }
#define DEVICE_INT_ATTR(_name, _mode, _var) \
	struct dev_ext_attribute dev_attr_##_name = \
		{ __ATTR(_name, _mode, device_show_int, device_store_int), &(_var) }
#define DEVICE_BOOL_ATTR(_name, _mode, _var) \
	struct dev_ext_attribute dev_attr_##_name = \
		{ __ATTR(_name, _mode, device_show_bool, device_store_bool), &(_var) }
#define DEVICE_ATTR_IGNORE_LOCKDEP(_name, _mode, _show, _store) \
	struct device_attribute dev_attr_##_name =		\
		__ATTR_IGNORE_LOCKDEP(_name, _mode, _show, _store)

extern int device_create_file(struct device *device,
			      const struct device_attribute *entry);
extern void device_remove_file(struct device *dev,
			       const struct device_attribute *attr);
extern bool device_remove_file_self(struct device *dev,
				    const struct device_attribute *attr);
extern int __must_check device_create_bin_file(struct device *dev,
					const struct bin_attribute *attr);
extern void device_remove_bin_file(struct device *dev,
				   const struct bin_attribute *attr);

/* device resource management */
typedef void (*dr_release_t)(struct device *dev, void *res);
typedef int (*dr_match_t)(struct device *dev, void *res, void *match_data);

extern void *__devres_alloc_node(dr_release_t release, size_t size, gfp_t gfp,
				 int nid, const char *name) __malloc;
#define devres_alloc(release, size, gfp) \
	__devres_alloc_node(release, size, gfp, NUMA_NO_NODE, #release)
#define devres_alloc_node(release, size, gfp, nid) \
	__devres_alloc_node(release, size, gfp, nid, #release)

extern void devres_for_each_res(struct device *dev, dr_release_t release,
				dr_match_t match, void *match_data,
				void (*fn)(struct device *, void *, void *),
				void *data);
extern void devres_free(void *res);
extern void devres_add(struct device *dev, void *res);
extern void *devres_find(struct device *dev, dr_release_t release,
			 dr_match_t match, void *match_data);
extern void *devres_get(struct device *dev, void *new_res,
			dr_match_t match, void *match_data);
extern void *devres_remove(struct device *dev, dr_release_t release,
			   dr_match_t match, void *match_data);
extern int devres_destroy(struct device *dev, dr_release_t release,
			  dr_match_t match, void *match_data);
extern int devres_release(struct device *dev, dr_release_t release,
			  dr_match_t match, void *match_data);

/* devres group */
extern void * __must_check devres_open_group(struct device *dev, void *id,
					     gfp_t gfp);
extern void devres_close_group(struct device *dev, void *id);
extern void devres_remove_group(struct device *dev, void *id);
extern int devres_release_group(struct device *dev, void *id);

/* managed devm_k.alloc/kfree for device drivers */
extern void *devm_kmalloc(struct device *dev, size_t size, gfp_t gfp) __malloc;
extern void *devm_krealloc(struct device *dev, void *ptr, size_t size,
			   gfp_t gfp) __must_check;
extern __printf(3, 0)
char *devm_kvasprintf(struct device *dev, gfp_t gfp, const char *fmt,
		      va_list ap) __malloc;
extern __printf(3, 4)
char *devm_kasprintf(struct device *dev, gfp_t gfp, const char *fmt, ...) __malloc;
static inline void *devm_kzalloc(struct device *dev, size_t size, gfp_t gfp)
{
	return devm_kmalloc(dev, size, gfp | __GFP_ZERO);
}
static inline void *devm_kmalloc_array(struct device *dev,
				       size_t n, size_t size, gfp_t flags)
{
	size_t bytes;

if (unlikely(check_mul_overflow(n, size, &bytes)))
		return NULL;

return devm_kmalloc(dev, bytes, flags);
}
static inline void *devm_kcalloc(struct device *dev,
				 size_t n, size_t size, gfp_t flags)
{
	return devm_kmalloc_array(dev, n, size, flags | __GFP_ZERO);
}
extern void devm_kfree(struct device *dev, const void *p);
extern char *devm_kstrdup(struct device *dev, const char *s, gfp_t gfp) __malloc;
extern const char *devm_kstrdup_const(struct device *dev,
				      const char *s, gfp_t gfp);
extern void *devm_kmemdup(struct device *dev, const void *src, size_t len,
			  gfp_t gfp);

extern unsigned long devm_get_free_pages(struct device *dev,
					 gfp_t gfp_mask, unsigned int order);
extern void devm_free_pages(struct device *dev, unsigned long addr);

void __iomem *devm_ioremap_resource(struct device *dev, struct resource *res);

/* allows to add/remove a custom action to devres stack */
void devm_remove_action(struct device *dev, void (*action)(void *), void *data);
void devm_release_action(struct device *dev, void (*action)(void *), void *data);

int __devm_add_action(struct device *dev, void (*action)(void *), void *data, const char *name);
#define devm_add_action(release, action, data) \
	__devm_add_action(release, action, data, #action)

static inline int devm_add_action_or_reset(struct device *dev,
					   void (*action)(void *), void *data)
{
	int ret;

ret = devm_add_action(dev, action, data);
	if (ret)
		action(data);

return ret;
}

/**
 * devm_alloc_percpu - Resource-managed alloc_percpu
 * @dev: Device to allocate per-cpu memory for
 * @type: Type to allocate per-cpu memory for
 *
 * Managed alloc_percpu. Per-cpu memory allocated with this function is
 * automatically freed on driver detach.
 *
 * RETURNS:
 * Pointer to allocated memory on success, NULL on failure.
 */
#define devm_alloc_percpu(dev, type)      \
	((typeof(type) __percpu *)__devm_alloc_percpu((dev), sizeof(type), \
						      __alignof__(type)))

void __percpu *__devm_alloc_percpu(struct device *dev, size_t size,
				   size_t align);
void devm_free_percpu(struct device *dev, void __percpu *pdata);

struct device_dma_parameters {
	/*
	 * a low level driver may set these to teach IOMMU code about
	 * sg limitations.
	 */
	unsigned int max_segment_size;
	unsigned long segment_boundary_mask;
	RH_KABI_EXTEND(unsigned int min_align_mask)
};

typedef void *(*devcon_match_fn_t)(const struct fwnode_handle *fwnode, const char *id,
				   void *data);

void *fwnode_connection_find_match(const struct fwnode_handle *fwnode,
				   const char *con_id, void *data,
				   devcon_match_fn_t match);
void *device_connection_find_match(const struct device *dev, const char *con_id,
				   void *data, devcon_match_fn_t match);

int fwnode_connection_find_matches(const struct fwnode_handle *fwnode,
				   const char *con_id, void *data,
				   devcon_match_fn_t match,
				   void **matches, unsigned int matches_len);

/**
 * enum device_link_state - Device link states.
 * @DL_STATE_NONE: The presence of the drivers is not being tracked.
 * @DL_STATE_DORMANT: None of the supplier/consumer drivers is present.
 * @DL_STATE_AVAILABLE: The supplier driver is present, but the consumer is not.
 * @DL_STATE_CONSUMER_PROBE: The consumer is probing (supplier driver present).
 * @DL_STATE_ACTIVE: Both the supplier and consumer drivers are present.
 * @DL_STATE_SUPPLIER_UNBIND: The supplier driver is unbinding.
 */
enum device_link_state {
	DL_STATE_NONE = -1,
	DL_STATE_DORMANT = 0,
	DL_STATE_AVAILABLE,
	DL_STATE_CONSUMER_PROBE,
	DL_STATE_ACTIVE,
	DL_STATE_SUPPLIER_UNBIND,
};

/*
 * Device link flags.
 *
 * STATELESS: The core will not remove this link automatically.
 * AUTOREMOVE_CONSUMER: Remove the link automatically on consumer driver unbind.
 * PM_RUNTIME: If set, the runtime PM framework will use this link.
 * RPM_ACTIVE: Run pm_runtime_get_sync() on the supplier during link creation.
 * AUTOREMOVE_SUPPLIER: Remove the link automatically on supplier driver unbind.
 * AUTOPROBE_CONSUMER: Probe consumer driver automatically after supplier binds.
 * MANAGED: The core tracks presence of supplier/consumer drivers (internal).
 * SYNC_STATE_ONLY: Link only affects sync_state() behavior.
 * INFERRED: Inferred from data (eg: firmware) and not from driver actions.
 */
#define DL_FLAG_STATELESS		BIT(0)
#define DL_FLAG_AUTOREMOVE_CONSUMER	BIT(1)
#define DL_FLAG_PM_RUNTIME		BIT(2)
#define DL_FLAG_RPM_ACTIVE		BIT(3)
#define DL_FLAG_AUTOREMOVE_SUPPLIER	BIT(4)
#define DL_FLAG_AUTOPROBE_CONSUMER	BIT(5)
#define DL_FLAG_MANAGED			BIT(6)
#define DL_FLAG_SYNC_STATE_ONLY		BIT(7)
#define DL_FLAG_INFERRED		BIT(8)
#define DL_FLAG_CYCLE			BIT(9)

/**
 * enum dl_dev_state - Device driver presence tracking information.
 * @DL_DEV_NO_DRIVER: There is no driver attached to the device.
 * @DL_DEV_PROBING: A driver is probing.
 * @DL_DEV_DRIVER_BOUND: The driver has been bound to the device.
 * @DL_DEV_UNBINDING: The driver is unbinding from the device.
 */
enum dl_dev_state {
	DL_DEV_NO_DRIVER = 0,
	DL_DEV_PROBING,
	DL_DEV_DRIVER_BOUND,
	DL_DEV_UNBINDING,
};

/**
 * enum device_removable - Whether the device is removable. The criteria for a
 * device to be classified as removable is determined by its subsystem or bus.
 * @DEVICE_REMOVABLE_NOT_SUPPORTED: This attribute is not supported for this
 *				    device (default).
 * @DEVICE_REMOVABLE_UNKNOWN:  Device location is Unknown.
 * @DEVICE_FIXED: Device is not removable by the user.
 * @DEVICE_REMOVABLE: Device is removable by the user.
 */
enum device_removable {
	DEVICE_REMOVABLE_NOT_SUPPORTED = 0, /* must be 0 */
	DEVICE_REMOVABLE_UNKNOWN,
	DEVICE_FIXED,
	DEVICE_REMOVABLE,
};

/**
 * struct dev_links_info - Device data related to device links.
 * @suppliers: List of links to supplier devices.
 * @consumers: List of links to consumer devices.
 * @status: Driver status information.
 */
struct dev_links_info {
	struct list_head suppliers;
	struct list_head consumers;
	enum dl_dev_state status;
};

/** RHEL NOTE:
 * upstream commit e2ae9bcc4aaa (driver core: Add support for linking devices
 * during device addition) added 'struct list_head needs_suppliers' to the
 * dev_links_info struct.  It has not been added here but is instead in one
 * of the RH_KABI fields of struct device.  If it had been added to
 * dev_links_info, its use in struct device as an entry (vs a pointer to an
 * entry) would break kABI.  A shadow struct could have been used instead,
 * however for just the one entry it seemed overkill; should there be a need
 * for additional entries to struct dev_links_info, that should be revisited.
 *
 * upstream commit bcbbcfd57247 (driver core: Allow a device to wait on optional
 * suppliers) adds another entry: bool need_for_probe.  Use the same technique
 * as above for the same reasons.
 *
 * upstream commit fc5a251d0fd7 (driver core: Add sync_state driver/bus
 * callback) * adds yet another entry: defer_sync.  Rinse and repeat.
 */

struct device_extended_rh {
};

/**
 * enum device_physical_location_panel - Describes which panel surface of the
 * system's housing the device connection point resides on.
 * @DEVICE_PANEL_TOP: Device connection point is on the top panel.
 * @DEVICE_PANEL_BOTTOM: Device connection point is on the bottom panel.
 * @DEVICE_PANEL_LEFT: Device connection point is on the left panel.
 * @DEVICE_PANEL_RIGHT: Device connection point is on the right panel.
 * @DEVICE_PANEL_FRONT: Device connection point is on the front panel.
 * @DEVICE_PANEL_BACK: Device connection point is on the back panel.
 * @DEVICE_PANEL_UNKNOWN: The panel with device connection point is unknown.
 */
enum device_physical_location_panel {
	DEVICE_PANEL_TOP,
	DEVICE_PANEL_BOTTOM,
	DEVICE_PANEL_LEFT,
	DEVICE_PANEL_RIGHT,
	DEVICE_PANEL_FRONT,
	DEVICE_PANEL_BACK,
	DEVICE_PANEL_UNKNOWN,
};

/**
 * enum device_physical_location_vertical_position - Describes vertical
 * position of the device connection point on the panel surface.
 * @DEVICE_VERT_POS_UPPER: Device connection point is at upper part of panel.
 * @DEVICE_VERT_POS_CENTER: Device connection point is at center part of panel.
 * @DEVICE_VERT_POS_LOWER: Device connection point is at lower part of panel.
 */
enum device_physical_location_vertical_position {
	DEVICE_VERT_POS_UPPER,
	DEVICE_VERT_POS_CENTER,
	DEVICE_VERT_POS_LOWER,
};

/**
 * enum device_physical_location_horizontal_position - Describes horizontal
 * position of the device connection point on the panel surface.
 * @DEVICE_HORI_POS_LEFT: Device connection point is at left part of panel.
 * @DEVICE_HORI_POS_CENTER: Device connection point is at center part of panel.
 * @DEVICE_HORI_POS_RIGHT: Device connection point is at right part of panel.
 */
enum device_physical_location_horizontal_position {
	DEVICE_HORI_POS_LEFT,
	DEVICE_HORI_POS_CENTER,
	DEVICE_HORI_POS_RIGHT,
};

/**
 * struct device_physical_location - Device data related to physical location
 * of the device connection point.
 * @panel: Panel surface of the system's housing that the device connection
 *         point resides on.
 * @vertical_position: Vertical position of the device connection point within
 *                     the panel.
 * @horizontal_position: Horizontal position of the device connection point
 *                       within the panel.
 * @dock: Set if the device connection point resides in a docking station or
 *        port replicator.
 * @lid: Set if this device connection point resides on the lid of laptop
 *       system.
 */
struct device_physical_location {
	enum device_physical_location_panel panel;
	enum device_physical_location_vertical_position vertical_position;
	enum device_physical_location_horizontal_position horizontal_position;
	bool dock;
	bool lid;
};

/**
 * struct device - The basic device structure
 * @parent:	The device's "parent" device, the device to which it is attached.
 * 		In most cases, a parent device is some sort of bus or host
 * 		controller. If parent is NULL, the device, is a top-level device,
 * 		which is not usually what you want.
 * @p:		Holds the private data of the driver core portions of the device.
 * 		See the comment of the struct device_private for detail.
 * @kobj:	A top-level, abstract class from which other classes are derived.
 * @init_name:	Initial name of the device.
 * @type:	The type of device.
 * 		This identifies the device type and carries type-specific
 * 		information.
 * @mutex:	Mutex to synchronize calls to its driver.
 * @bus:	Type of bus device is on.
 * @driver:	Which driver has allocated this
 * @platform_data: Platform data specific to the device.
 * 		Example: For devices on custom boards, as typical of embedded
 * 		and SOC based hardware, Linux often uses platform_data to point
 * 		to board-specific structures describing devices and how they
 * 		are wired.  That can include what ports are available, chip
 * 		variants, which GPIO pins act in what additional roles, and so
 * 		on.  This shrinks the "Board Support Packages" (BSPs) and
 * 		minimizes board-specific #ifdefs in drivers.
 * @driver_data: Private pointer for driver specific info.
 * @links:	Links to suppliers and consumers of this device.
 * @power:	For device power management.
 *		See Documentation/driver-api/pm/devices.rst for details.
 * @pm_domain:	Provide callbacks that are executed during system suspend,
 * 		hibernation, system resume and during runtime PM transitions
 * 		along with subsystem-level and driver-level callbacks.
 * @pins:	For device pin management.
 *		See Documentation/driver-api/pin-control.rst for details.
 * @msi_lock:	Lock to protect MSI mask cache and mask register
 * @msi_list:	Hosts MSI descriptors
 * @msi_domain: The generic MSI domain this device is using.
 * @numa_node:	NUMA node this device is close to.
 * @dma_ops:    DMA mapping operations for this device.
 * @dma_mask:	Dma mask (if dma'ble device).
 * @coherent_dma_mask: Like dma_mask, but for alloc_coherent mapping as not all
 * 		hardware supports 64-bit addresses for consistent allocations
 * 		such descriptors.
 * @bus_dma_limit: Limit of an upstream bridge or bus which imposes a smaller
 *		DMA limit than the device itself supports.
 * @dma_range_map: map for DMA memory ranges relative to that of RAM
 * @dma_parms:	A low level driver may set these to teach IOMMU code about
 * 		segment limitations.
 * @dma_pools:	Dma pools (if dma'ble device).
 * @dma_mem:	Internal for coherent mem override.
 * @cma_area:	Contiguous memory area for dma allocations
 * @dma_io_tlb_mem: Pointer to the swiotlb pool used.  Not for driver use.
 * @archdata:	For arch-specific additions.
 * @of_node:	Associated device tree node.
 * @fwnode:	Associated device node supplied by platform firmware.
 * @devt:	For creating the sysfs "dev".
 * @id:		device instance
 * @devres_lock: Spinlock to protect the resource of the device.
 * @devres_head: The resources list of the device.
 * @knode_class: The node used to add the device to the class list.
 * @class:	The class of the device.
 * @groups:	Optional attribute groups.
 * @release:	Callback to free the device after all references have
 * 		gone away. This should be set by the allocator of the
 * 		device (i.e. the bus driver that discovered the device).
 * @iommu_group: IOMMU group the device belongs to.
 * @iommu:	Per device generic IOMMU runtime data
 * @physical_location: Describes physical location of the device connection
 *		point in the system housing.
 * @removable:  Whether the device can be removed from the system. This
 *              should be set by the subsystem / bus driver that discovered
 *              the device.
 *
 * @offline_disabled: If set, the device is permanently online.
 * @offline:	Set after successful invocation of bus type's .offline().
 * @of_node_reused: Set if the device-tree node is shared with an ancestor
 *              device.
 * @state_synced: The hardware state of this device has been synced to match
 *		  the software state of this device by calling the driver/bus
 *		  sync_state() callback.
 * @can_match:	The device has matched with a driver at least once or it is in
 *		a bus (like AMBA) which can't check for matching drivers until
 *		other devices probe successfully.
 * @dma_coherent: this particular device is dma coherent, even if the
 *		architecture supports non-coherent devices.
 * @dma_ops_bypass: If set to %true then the dma_ops are bypassed for the
 *		streaming DMA operations (->map_* / ->unmap_* / ->sync_*),
 *		and optionall (if the coherent mask is large enough) also
 *		for dma allocations.  This flag is managed by the dma ops
 *		instance from ->dma_supported.
 *
 * At the lowest level, every device in a Linux system is represented by an
 * instance of struct device. The device structure contains the information
 * that the device model core needs to model the system. Most subsystems,
 * however, track additional information about the devices they host. As a
 * result, it is rare for devices to be represented by bare device structures;
 * instead, that structure, like kobject structures, is usually embedded within
 * a higher-level representation of the device.
 */
struct device {
	struct device		*parent;

struct device_private	*p;

struct kobject kobj;
	const char		*init_name; /* initial name of the device */
	const struct device_type *type;

struct mutex		mutex;	/* mutex to synchronize calls to
					 * its driver.
					 */

struct bus_type	*bus;		/* type of bus device is on */
	struct device_driver *driver;	/* which driver has allocated this
					   device */
	void		*platform_data;	/* Platform specific data, device
					   core doesn't touch it */
	void		*driver_data;	/* Driver data, set and get with
					   dev_set/get_drvdata */
	struct dev_links_info	links;
	struct dev_pm_info	power;
	struct dev_pm_domain	*pm_domain;

#ifdef CONFIG_GENERIC_MSI_IRQ_DOMAIN
	struct irq_domain	*msi_domain;
#endif
#ifdef CONFIG_PINCTRL
	struct dev_pin_info	*pins;
#endif
#ifdef CONFIG_GENERIC_MSI_IRQ
	struct list_head	msi_list;
#endif

#ifdef CONFIG_NUMA
	int		numa_node;	/* NUMA node this device is close to */
#endif
#ifdef CONFIG_DMA_OPS
	const struct dma_map_ops *dma_ops;
#endif
	u64		*dma_mask;	/* dma mask (if dma'able device) */
	u64		coherent_dma_mask;/* Like dma_mask, but for
					     alloc_coherent mappings as
					     not all hardware supports
					     64 bit addresses for consistent
					     allocations such descriptors. */
	u64		RH_KABI_RENAME(bus_dma_mask,
					bus_dma_limit); /* upstream dma constraint */
	RH_KABI_REPLACE(unsigned long	dma_pfn_offset, const struct bus_dma_region *dma_range_map)

struct device_dma_parameters *dma_parms;

struct list_head	dma_pools;	/* dma pools (if dma'ble) */

struct dma_coherent_mem	*dma_mem; /* internal for coherent mem
					     override */
#ifdef CONFIG_DMA_CMA
	struct cma *cma_area;		/* contiguous memory area for dma
					   allocations */
#endif
	/* arch specific additions */
	struct dev_archdata	archdata;

struct device_node	*of_node; /* associated device tree node */
	struct fwnode_handle	*fwnode; /* firmware device node */

dev_t			devt;	/* dev_t, creates the sysfs "dev" */
	u32			id;	/* device instance */

spinlock_t		devres_lock;
	struct list_head	devres_head;

struct klist_node	knode_class;
	struct class		*class;
	const struct attribute_group **groups;	/* optional groups */

void	(*release)(struct device *dev);
	struct iommu_group	*iommu_group;
	RH_KABI_DEPRECATE(struct iommu_fwspec *, iommu_fwspec)

/* RHEL8 kabi note: Total of 64-bits of bool can be defined. */
	bool			offline_disabled:1;
	bool			offline:1;
	bool			of_node_reused:1;
	RH_KABI_FILL_HOLE(bool state_synced:1)
	RH_KABI_FILL_HOLE(bool can_match:1)
#if defined(CONFIG_ARCH_HAS_SYNC_DMA_FOR_DEVICE) || \
    defined(CONFIG_ARCH_HAS_SYNC_DMA_FOR_CPU) || \
    defined(CONFIG_ARCH_HAS_SYNC_DMA_FOR_CPU_ALL)
	bool			dma_coherent:1;
#endif
#ifdef CONFIG_DMA_OPS_BYPASS
	RH_KABI_FILL_HOLE(bool dma_ops_bypass : 1)
#endif
	/* Use device_extended after all RESERVE fields used */

RH_KABI_USE(1, struct dev_iommu *iommu)
#ifdef CONFIG_SWIOTLB
	RH_KABI_USE(2, struct io_tlb_mem *dma_io_tlb_mem)
#else
	RH_KABI_RESERVE(2)
#endif

/* NB: See the note for struct dev_links_info: */
	RH_KABI_USE(3, struct device_physical_location *physical_location)
	RH_KABI_RESERVE(4)
	RH_KABI_RESERVE(5)
	RH_KABI_USE(6, 7, struct list_head links_defer_sync)

RH_KABI_USE(8, enum device_removable   removable)
	RH_KABI_USE(9, raw_spinlock_t msi_lock)
	RH_KABI_RESERVE(10)
	RH_KABI_RESERVE(11)
	RH_KABI_RESERVE(12)
	RH_KABI_RESERVE(13)
	RH_KABI_RESERVE(14)
	RH_KABI_RESERVE(15)
	RH_KABI_RESERVE(16)
	RH_KABI_AUX_PTR(device_extended)
};

/**
 * struct device_link - Device link representation.
 * @supplier: The device on the supplier end of the link.
 * @s_node: Hook to the supplier device's list of links to consumers.
 * @consumer: The device on the consumer end of the link.
 * @c_node: Hook to the consumer device's list of links to suppliers.
 * @link_dev: device used to expose link details in sysfs
 * @status: The state of the link (with respect to the presence of drivers).
 * @flags: Link flags.
 * @rpm_active: Whether or not the consumer device is runtime-PM-active.
 * @kref: Count repeated addition of the same link.
 * @rcu_head: An RCU head to use for deferred execution of SRCU callbacks.
 * @supplier_preactivated: Supplier has been made active before consumer probe.
 */
struct device_link {
	struct device *supplier;
	struct list_head s_node;
	struct device *consumer;
	struct list_head c_node;
	struct device link_dev;
	enum device_link_state status;
	u32 flags;
	refcount_t rpm_active;
	struct kref kref;
#ifdef CONFIG_SRCU
	struct rcu_head rcu_head;
#endif
	bool supplier_preactivated; /* Owned by consumer probe. */
};

#define kobj_to_dev(__kobj)	container_of_const(__kobj, struct device, kobj)

/**
 * device_iommu_mapped - Returns true when the device DMA is translated
 *			 by an IOMMU
 * @dev: Device to perform the check on
 */
static inline bool device_iommu_mapped(struct device *dev)
{
	return (dev->iommu_group != NULL);
}

/* Get the wakeup routines, which depend on struct device */
#include <linux/pm_wakeup.h>

static inline const char *dev_name(const struct device *dev)
{
	/* Use the init name until the kobject becomes available */
	if (dev->init_name)
		return dev->init_name;

return kobject_name(&dev->kobj);
}

/**
 * dev_bus_name - Return a device's bus/class name, if at all possible
 * @dev: struct device to get the bus/class name of
 *
 * Will return the name of the bus/class the device is attached to.  If it is
 * not attached to a bus/class, an empty string will be returned.
 */
static inline const char *dev_bus_name(const struct device *dev)
{
	return dev->bus ? dev->bus->name : (dev->class ? dev->class->name : "");
}

extern __printf(2, 3)
int dev_set_name(struct device *dev, const char *name, ...);

#ifdef CONFIG_NUMA
static inline int dev_to_node(struct device *dev)
{
	return dev->numa_node;
}
static inline void set_dev_node(struct device *dev, int node)
{
	dev->numa_node = node;
}
#else
static inline int dev_to_node(struct device *dev)
{
	return NUMA_NO_NODE;
}
static inline void set_dev_node(struct device *dev, int node)
{
}
#endif

static inline struct irq_domain *dev_get_msi_domain(const struct device *dev)
{
#ifdef CONFIG_GENERIC_MSI_IRQ_DOMAIN
	return dev->msi_domain;
#else
	return NULL;
#endif
}

static inline void dev_set_msi_domain(struct device *dev, struct irq_domain *d)
{
#ifdef CONFIG_GENERIC_MSI_IRQ_DOMAIN
	dev->msi_domain = d;
#endif
}

static inline void *dev_get_drvdata(const struct device *dev)
{
	return dev->driver_data;
}

static inline void dev_set_drvdata(struct device *dev, void *data)
{
	dev->driver_data = data;
}

static inline struct pm_subsys_data *dev_to_psd(struct device *dev)
{
	return dev ? dev->power.subsys_data : NULL;
}

static inline unsigned int dev_get_uevent_suppress(const struct device *dev)
{
	return dev->kobj.uevent_suppress;
}

static inline void dev_set_uevent_suppress(struct device *dev, int val)
{
	dev->kobj.uevent_suppress = val;
}

static inline int device_is_registered(struct device *dev)
{
	return dev->kobj.state_in_sysfs;
}

static inline void device_enable_async_suspend(struct device *dev)
{
	if (!dev->power.is_prepared)
		dev->power.async_suspend = true;
}

static inline void device_disable_async_suspend(struct device *dev)
{
	if (!dev->power.is_prepared)
		dev->power.async_suspend = false;
}

static inline bool device_async_suspend_enabled(struct device *dev)
{
	return !!dev->power.async_suspend;
}

static inline bool device_pm_not_required(struct device *dev)
{
	return dev->power.no_pm;
}

static inline void device_set_pm_not_required(struct device *dev)
{
	dev->power.no_pm = true;
}

static inline void dev_pm_syscore_device(struct device *dev, bool val)
{
#ifdef CONFIG_PM_SLEEP
	dev->power.syscore = val;
#endif
}

static inline void dev_pm_set_driver_flags(struct device *dev, u32 flags)
{
	dev->power.driver_flags = flags;
}

static inline bool dev_pm_test_driver_flags(struct device *dev, u32 flags)
{
	return !!(dev->power.driver_flags & flags);
}

static inline void device_lock(struct device *dev)
{
	mutex_lock(&dev->mutex);
}

static inline int device_lock_interruptible(struct device *dev)
{
	return mutex_lock_interruptible(&dev->mutex);
}

static inline int device_trylock(struct device *dev)
{
	return mutex_trylock(&dev->mutex);
}

static inline void device_unlock(struct device *dev)
{
	mutex_unlock(&dev->mutex);
}

static inline void device_lock_assert(struct device *dev)
{
	lockdep_assert_held(&dev->mutex);
}

static inline struct device_node *dev_of_node(struct device *dev)
{
	if (!IS_ENABLED(CONFIG_OF))
		return NULL;
	return dev->of_node;
}

void driver_init(void);

static inline bool dev_has_sync_state(struct device *dev)
{
	if (!dev)
		return false;
	if (dev->driver && dev->driver->sync_state)
		return true;
	if (dev->bus && dev->bus->sync_state)
		return true;
	return false;
}

static inline void dev_set_removable(struct device *dev,
				     enum device_removable removable)
{
	dev->removable = removable;
}

static inline bool dev_is_removable(struct device *dev)
{
	return dev->removable == DEVICE_REMOVABLE;
}

static inline bool dev_removable_is_valid(struct device *dev)
{
	return dev->removable != DEVICE_REMOVABLE_NOT_SUPPORTED;
}

/*
 * High level routines for use by the bus drivers
 */
extern int __must_check device_register(struct device *dev);
extern void device_unregister(struct device *dev);
extern void device_initialize(struct device *dev);
extern int __must_check device_add(struct device *dev);
extern void device_del(struct device *dev);
extern int device_for_each_child(struct device *dev, void *data,
		     int (*fn)(struct device *dev, void *data));
extern int device_for_each_child_reverse(struct device *dev, void *data,
		     int (*fn)(struct device *dev, void *data));
extern struct device *device_find_child(struct device *dev, void *data,
				int (*match)(struct device *dev, void *data));
extern struct device *device_find_child_by_name(struct device *parent,
						const char *name);
extern struct device *device_find_any_child(struct device *parent);
extern int device_rename(struct device *dev, const char *new_name);
extern int device_move(struct device *dev, struct device *new_parent,
		       enum dpm_order dpm_order);
extern int device_change_owner(struct device *dev, kuid_t kuid, kgid_t kgid);
extern int device_is_dependent(struct device *dev, void *target);

DEFINE_FREE(device_del, struct device *, if (_T) device_del(_T))

static inline bool device_supports_offline(struct device *dev)
{
	return dev->bus && dev->bus->offline && dev->bus->online;
}

extern void lock_device_hotplug(void);
extern void unlock_device_hotplug(void);
extern int lock_device_hotplug_sysfs(void);
extern int device_offline(struct device *dev);
extern int device_online(struct device *dev);
extern void set_primary_fwnode(struct device *dev, struct fwnode_handle *fwnode);
extern void set_secondary_fwnode(struct device *dev, struct fwnode_handle *fwnode);
void device_set_of_node_from_dev(struct device *dev, const struct device *dev2);
void device_set_node(struct device *dev, struct fwnode_handle *fwnode);

static inline int dev_num_vf(struct device *dev)
{
	if (dev->bus && dev->bus->num_vf)
		return dev->bus->num_vf(dev);
	return 0;
}

/*
 * Root device objects for grouping under /sys/devices
 */
extern struct device *__root_device_register(const char *name,
					     struct module *owner);

/* This is a macro to avoid include problems with THIS_MODULE */
#define root_device_register(name) \
	__root_device_register(name, THIS_MODULE)

extern void root_device_unregister(struct device *root);

static inline void *dev_get_platdata(const struct device *dev)
{
	return dev->platform_data;
}

/*
 * Manual binding of a device to driver. See drivers/base/bus.c
 * for information on use.
 */
int __must_check device_driver_attach(struct device_driver *drv,
				      struct device *dev);
extern int __must_check device_bind_driver(struct device *dev);
extern void device_release_driver(struct device *dev);
extern int  __must_check device_attach(struct device *dev);
extern int __must_check driver_attach(struct device_driver *drv);
extern void device_initial_probe(struct device *dev);
extern int __must_check device_reprobe(struct device *dev);

extern bool device_is_bound(struct device *dev);

/*
 * Easy functions for dynamically creating devices on the fly
 */
extern __printf(5, 6)
struct device *device_create(struct class *cls, struct device *parent,
			     dev_t devt, void *drvdata,
			     const char *fmt, ...);
extern __printf(6, 7)
struct device *device_create_with_groups(struct class *cls,
			     struct device *parent, dev_t devt, void *drvdata,
			     const struct attribute_group **groups,
			     const char *fmt, ...);
extern void device_destroy(struct class *cls, dev_t devt);

extern int __must_check device_add_groups(struct device *dev,
					const struct attribute_group **groups);
extern void device_remove_groups(struct device *dev,
				 const struct attribute_group **groups);

static inline int __must_check device_add_group(struct device *dev,
					const struct attribute_group *grp)
{
	const struct attribute_group *groups[] = { grp, NULL };

return device_add_groups(dev, groups);
}

static inline void device_remove_group(struct device *dev,
				       const struct attribute_group *grp)
{
	const struct attribute_group *groups[] = { grp, NULL };

return device_remove_groups(dev, groups);
}

extern int __must_check devm_device_add_groups(struct device *dev,
					const struct attribute_group **groups);
extern int __must_check devm_device_add_group(struct device *dev,
					const struct attribute_group *grp);

/*
 * Platform "fixup" functions - allow the platform to have their say
 * about devices and actions that the general device layer doesn't
 * know about.
 */
/* Notify platform of device discovery */
extern int (*platform_notify)(struct device *dev);

extern int (*platform_notify_remove)(struct device *dev);

/*
 * get_device - atomically increment the reference count for the device.
 *
 */
extern struct device *get_device(struct device *dev);
extern void put_device(struct device *dev);

DEFINE_FREE(put_device, struct device *, if (_T) put_device(_T))

extern bool kill_device(struct device *dev);

#ifdef CONFIG_DEVTMPFS
extern int devtmpfs_create_node(struct device *dev);
extern int devtmpfs_delete_node(struct device *dev);
extern int devtmpfs_mount(const char *mntdir);
#else
static inline int devtmpfs_create_node(struct device *dev) { return 0; }
static inline int devtmpfs_delete_node(struct device *dev) { return 0; }
static inline int devtmpfs_mount(const char *mountpoint) { return 0; }
#endif

/* drivers/base/power/shutdown.c */
extern void device_shutdown(void);

/* debugging and troubleshooting/diagnostic helpers. */
extern const char *dev_driver_string(const struct device *dev);

/* Device links interface. */
struct device_link *device_link_add(struct device *consumer,
				    struct device *supplier, u32 flags);
void device_link_del(struct device_link *link);
void device_link_remove(void *consumer, struct device *supplier);
void device_links_supplier_sync_state_pause(void);
void device_links_supplier_sync_state_resume(void);

extern __printf(3, 4)
int dev_err_probe(const struct device *dev, int err, const char *fmt, ...);

/* Create alias, so I can be autoloaded. */
#define MODULE_ALIAS_CHARDEV(major,minor) \
	MODULE_ALIAS("char-major-" __stringify(major) "-" __stringify(minor))
#define MODULE_ALIAS_CHARDEV_MAJOR(major) \
	MODULE_ALIAS("char-major-" __stringify(major) "-*")

#ifdef CONFIG_SYSFS_DEPRECATED
extern long sysfs_deprecated;
#else
#define sysfs_deprecated 0
#endif

/**
 * module_driver() - Helper macro for drivers that don't do anything
 * special in module init/exit. This eliminates a lot of boilerplate.
 * Each module may only use this macro once, and calling it replaces
 * module_init() and module_exit().
 *
 * @__driver: driver name
 * @__register: register function for this driver type
 * @__unregister: unregister function for this driver type
 * @...: Additional arguments to be passed to __register and __unregister.
 *
 * Use this macro to construct bus specific macros for registering
 * drivers, and do not use it on its own.
 */
#define module_driver(__driver, __register, __unregister, ...) \
static int __init __driver##_init(void) \
{ \
	return __register(&(__driver) , ##__VA_ARGS__); \
} \
module_init(__driver##_init); \
static void __exit __driver##_exit(void) \
{ \
	__unregister(&(__driver) , ##__VA_ARGS__); \
} \
module_exit(__driver##_exit);

/**
 * builtin_driver() - Helper macro for drivers that don't do anything
 * special in init and have no exit. This eliminates some boilerplate.
 * Each driver may only use this macro once, and calling it replaces
 * device_initcall (or in some cases, the legacy __initcall).  This is
 * meant to be a direct parallel of module_driver() above but without
 * the __exit stuff that is not used for builtin cases.
 *
 * @__driver: driver name
 * @__register: register function for this driver type
 * @...: Additional arguments to be passed to __register
 *
 * Use this macro to construct bus specific macros for registering
 * drivers, and do not use it on its own.
 */
#define builtin_driver(__driver, __register, ...) \
static int __init __driver##_init(void) \
{ \
	return __register(&(__driver) , ##__VA_ARGS__); \
} \
device_initcall(__driver##_init);

#endif /* _DEVICE_H_ */

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