[root@dbserver ~]# cd /usr/share/doc
[root@dbserver doc]# ls -lrt | grep ker
[root@dbserver doc]# yum install kernel-doc
Loaded plugins: product-id, search-disabled-repos, subscription-manager
This system is not registered with an entitlement server. You can use subscription-manager to register.
Resolving Dependencies
--> Running transaction check
---> Package kernel-doc.noarch 0:3.10.0-862.el7 will be installed
--> Finished Dependency Resolution

Dependencies Resolved

=================================================================================================================================================================================================================
Package Arch Version Repository Size
=================================================================================================================================================================================================================
Installing:
kernel-doc noarch 3.10.0-862.el7 rhel-debuginfo 17 M

Transaction Summary
=================================================================================================================================================================================================================
Install 1 Package

Total download size: 17 M
Installed size: 48 M
Is this ok [y/d/N]: y
Downloading packages:
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
Installing : kernel-doc-3.10.0-862.el7.noarch 1/1
Verifying : kernel-doc-3.10.0-862.el7.noarch 1/1

Installed:
kernel-doc.noarch 0:3.10.0-862.el7

Complete!
[root@dbserver doc]# ls -lrt | grep ker
drwxr-xr-x. 3 root root 27 May 23 10:18 kernel-doc-3.10.0
drwxr-xr-x. 3 root root 28 May 23 10:18 kernel-keys
[root@dbserver doc]# cd kernel-doc-3.10.0/
[root@dbserver kernel-doc-3.10.0]# ls
Documentation
[root@dbserver kernel-doc-3.10.0]# cd Documentation/
[root@dbserver Documentation]# ls
00-INDEX cpu-freq fb ja_JP mips ramoops.txt svga.txt
ABI cpu-hotplug.txt filesystems java.txt misc-devices rapidio sysctl
accounting cpuidle firmware_class kbuild mmc rbtree.txt sysfs-rules.txt
acpi cpu-load.txt flexible-arrays.txt kdump mn10300 RCU sysrq.txt
admin-guide cputopology.txt frv kernel-doc-nano-HOWTO.txt module-signing.txt remoteproc.txt target
aoe crc32.txt futex-requeue-pi.txt kernel-docs.txt mono.txt rfkill.txt thermal
applying-patches.txt cris gcov.txt kernel-parameters.txt mtd robust-futex-ABI.txt this_cpu_ops.txt
arm crypto gpio kernel-per-CPU-kthreads.txt mutex-design.txt robust-futexes.txt timers
arm64 dcdbas.txt gpu kmemcheck.txt namespaces rpmsg.txt tpm
assoc_array.txt debugging-modules.txt hid kmemleak.txt netlabel rtc.txt trace
atomic_ops.txt debugging-via-ohci1394.txt highuid.txt kobject.txt networking rt-mutex-design.txt unaligned-memory-access.txt
auxdisplay dell_rbu.txt HOWTO ko_KR nfc rt-mutex.txt unicode.txt
backlight development-process hwmon kprobes.txt nommu-mmap.txt s390 unshare.txt
bad_memory.txt device-mapper hw_random.txt kref.txt ntb.txt SAK.txt usb
basic_profiling.txt devices.txt hwspinlock.txt laptops numastat.txt scheduler vDSO
bcache.txt devicetree i2c ldm.txt nvdimm scsi vfio-mediated-device.txt
binfmt_misc.txt digsig.txt i2o leds oops-tracing.txt security vfio.txt
blackfin DMA-API-HOWTO.txt ia64 livepatch padata.txt SecurityBugs vgaarbiter.txt
block DMA-API.txt ide local_ops.txt parisc serial VGA-softcursor.txt
blockdev DMA-attributes.txt infiniband lockdep-design.txt parport-lowlevel.txt serial-console.txt video4linux
braille-console.txt dma-buf-sharing.txt initrd.txt lockstat.txt parport.txt sgi-ioc4.txt video-output.txt
bt8xxgpio.txt dmaengine.txt init.txt lockup-watchdogs.txt PCI sgi-visws.txt virtual
btmrvl.txt DMA-ISA-LPC.txt input logo.gif pcmcia sh vm
BUG-HUNTING dmatest.txt Intel-IOMMU.txt logo.txt percpu-rw-semaphore.txt SM501.txt vme_api.txt
bus-devices DocBook intel_txt.txt m68k pi-futex.txt smsc_ece1099.txt volatile-considered-harmful.txt
bus-virt-phys-mapping.txt dontdiff ioctl magic-number.txt pinctrl.txt sound w1
cachetlb.txt driver-model io-mapping.txt make pnp.txt sparse.txt watchdog
cdrom dvb io_ordering.txt Makefile power spec_ctrl.txt wimax
cgroups dynamic-debug-howto.txt iostats.txt ManagementStyle powerpc spi workqueue.txt
Changes early-userspace IPMI.txt md pps spinlocks.txt ww-mutex-design.txt
circular-buffers.txt edac.txt IRQ-affinity.txt md.txt prctl stable_api_nonsense.txt x86
clk.txt EDID IRQ-domain.txt media-framework.txt preempt-locking.txt stable_kernel_rules.txt xtensa
coccinelle.txt eisa.txt irqflags-tracing.txt memory-barriers.txt printk-formats.txt static-keys.txt xz.txt
CodingStyle email-clients.txt IRQ.txt memory-devices pti SubmitChecklist zh_CN
connector extcon isapnp.txt memory-hotplug.txt ptp SubmittingDrivers zorro.txt
console fault-injection isdn metag pwm.txt SubmittingPatches
[root@dbserver Documentation]#