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Lubomir Rintel d92116b800 x86/olpc: Indicate that legacy PC XO-1 platform should not register RTC
On OLPC XO-1, the RTC is discovered via device tree from the arch
initcall. Don't let the PC platform register another one from its device
initcall, it's not going to work:

  sysfs: cannot create duplicate filename '/devices/platform/rtc_cmos'
  CPU: 0 PID: 1 Comm: swapper Not tainted 4.19.0-rc6 #12
  Hardware name: OLPC XO/XO, BIOS OLPC Ver 1.00.01 06/11/2014
  Call Trace:
   dump_stack+0x16/0x18
   sysfs_warn_dup+0x46/0x58
   sysfs_create_dir_ns+0x76/0x9b
   kobject_add_internal+0xed/0x209
   ? __schedule+0x3fa/0x447
   kobject_add+0x5b/0x66
   device_add+0x298/0x535
   ? insert_resource_conflict+0x2a/0x3e
   platform_device_add+0x14d/0x192
   ? io_delay_init+0x19/0x19
   platform_device_register+0x1c/0x1f
   add_rtc_cmos+0x16/0x31
   do_one_initcall+0x78/0x14a
   ? do_early_param+0x75/0x75
   kernel_init_freeable+0x152/0x1e0
   ? rest_init+0xa2/0xa2
   kernel_init+0x8/0xd5
   ret_from_fork+0x2e/0x38
  kobject_add_internal failed for rtc_cmos with -EEXIST, don't try to
    register things with the same name in the same directory.
  platform rtc_cmos: registered platform RTC device (no PNP device found)

Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Signed-off-by: Borislav Petkov <bp@suse.de>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
CC: "H. Peter Anvin" <hpa@zytor.com>
CC: Ingo Molnar <mingo@redhat.com>
CC: x86-ml <x86@kernel.org>
Link: http://lkml.kernel.org/r/20181004160808.307738-1-lkundrak@v3.sk
2018-10-05 12:29:20 +02:00
arch x86/olpc: Indicate that legacy PC XO-1 platform should not register RTC 2018-10-05 12:29:20 +02:00
block blk-mq: I/O and timer unplugs are inverted in blktrace 2018-09-27 13:12:44 -06:00
certs export.h: remove VMLINUX_SYMBOL() and VMLINUX_SYMBOL_STR() 2018-08-22 23:21:44 +09:00
crypto DMAengine updates for v4.19-rc1 2018-08-18 15:55:59 -07:00
Documentation Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2018-09-28 18:04:50 -07:00
drivers for-linus-20180929 2018-09-29 14:52:14 -07:00
firmware kbuild: remove all dummy assignments to obj- 2017-11-18 11:46:06 +09:00
fs filesystem-dax for 4.19-rc6 2018-09-30 06:19:38 -07:00
include spi: Fixes for v4.19 2018-09-28 18:04:06 -07:00
init Kbuild updates for v4.19 (2nd) 2018-08-25 13:40:38 -07:00
ipc ipc/shm: properly return EIDRM in shm_lock() 2018-09-04 16:45:02 -07:00
kernel Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2018-09-29 11:32:03 -07:00
lib lib/Kconfig.debug: fix three typos in help text 2018-09-04 16:45:02 -07:00
LICENSES LICENSES: Add Linux-OpenIB license text 2018-04-27 16:41:53 -06:00
mm mm: slowly shrink slabs with a relatively small number of objects 2018-09-20 22:01:11 +02:00
net ip_tunnel: be careful when accessing the inner header 2018-09-24 12:27:04 -07:00
samples samples/bpf: all XDP samples should unload xdp/bpf prog on SIGTERM 2018-08-16 21:55:32 +02:00
scripts linux-kselftest-4.19-rc5 2018-09-17 07:24:28 +02:00
security Revert "uapi/linux/keyctl.h: don't use C++ reserved keyword as a struct member name" 2018-09-25 13:28:58 +02:00
sound ASoC: Fixes for v4.19 2018-09-17 18:59:21 +02:00
tools powerpc fixes for 4.19 #3 2018-09-28 17:43:32 -07:00
usr initramfs: move gen_initramfs_list.sh from scripts/ to usr/ 2018-08-22 23:21:44 +09:00
virt KVM: Remove obsolete kvm_unmap_hva notifier backend 2018-09-07 15:06:02 +02:00
.clang-format clang-format: Set IndentWrappedFunctionNames false 2018-08-01 18:38:51 +02:00
.cocciconfig
.get_maintainer.ignore
.gitattributes .gitattributes: set git diff driver for C source code files 2016-10-07 18:46:30 -07:00
.gitignore Kbuild updates for v4.17 (2nd) 2018-04-15 17:21:30 -07:00
.mailmap libnvdimm-for-4.19_misc 2018-08-25 18:13:10 -07:00
COPYING COPYING: use the new text with points to the license files 2018-03-23 12:41:45 -06:00
CREDITS 9p: remove Ron Minnich from MAINTAINERS 2018-08-17 16:20:26 -07:00
Kbuild Kbuild updates for v4.15 2017-11-17 17:45:29 -08:00
Kconfig kconfig: move the "Executable file formats" menu to fs/Kconfig.binfmt 2018-08-02 08:06:55 +09:00
MAINTAINERS A trivial fix for auxdisplay 2018-09-30 06:20:33 -07:00
Makefile Linux 4.19-rc6 2018-09-30 07:15:35 -07:00
README Docs: Added a pointer to the formatted docs to README 2018-03-21 09:02:53 -06:00

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
See Documentation/00-INDEX for a list of what is contained in each file.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.