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Philipp Zabel cb334409bb drm/etnaviv: make THERMAL selectable 
[ Upstream commit 49b82c389d ]

The etnaviv driver causes a link failure if it is built-in but THERMAL
is built as a module:

  drivers/gpu/drm/etnaviv/etnaviv_gpu.o: In function `etnaviv_gpu_bind':
  etnaviv_gpu.c:(.text+0x4c4): undefined reference to `thermal_of_cooling_device_register'
  etnaviv_gpu.c:(.text+0x600): undefined reference to `thermal_cooling_device_unregister'
  drivers/gpu/drm/etnaviv/etnaviv_gpu.o: In function `etnaviv_gpu_unbind':
  etnaviv_gpu.c:(.text+0x2aac): undefined reference to `thermal_cooling_device_unregister'

Adding a Kconfig dependency on THERMAL || !THERMAL to avoid this causes
a dependency loop on x86_64:

  drivers/gpu/drm/tve200/Kconfig:1:error: recursive dependency detected!
  For a resolution refer to Documentation/kbuild/kconfig-language.txt
  subsection "Kconfig recursive dependency limitations"
  drivers/gpu/drm/tve200/Kconfig:1:       symbol DRM_TVE200 depends on CMA
  For a resolution refer to Documentation/kbuild/kconfig-language.txt
  subsection "Kconfig recursive dependency limitations"
  mm/Kconfig:489: symbol CMA is selected by DRM_ETNAVIV
  For a resolution refer to Documentation/kbuild/kconfig-language.txt
  subsection "Kconfig recursive dependency limitations"
  drivers/gpu/drm/etnaviv/Kconfig:2:      symbol DRM_ETNAVIV depends on THERMAL
  For a resolution refer to Documentation/kbuild/kconfig-language.txt
  subsection "Kconfig recursive dependency limitations"
  drivers/thermal/Kconfig:5:      symbol THERMAL is selected by ACPI_VIDEO
  For a resolution refer to Documentation/kbuild/kconfig-language.txt
  subsection "Kconfig recursive dependency limitations"
  drivers/acpi/Kconfig:189:       symbol ACPI_VIDEO is selected by BACKLIGHT_CLASS_DEVICE
  For a resolution refer to Documentation/kbuild/kconfig-language.txt
  subsection "Kconfig recursive dependency limitations"
  drivers/video/backlight/Kconfig:158:    symbol BACKLIGHT_CLASS_DEVICE is selected by DRM_PARADE_PS8622
  For a resolution refer to Documentation/kbuild/kconfig-language.txt
  subsection "Kconfig recursive dependency limitations"
  drivers/gpu/drm/bridge/Kconfig:62:      symbol DRM_PARADE_PS8622 depends on DRM_BRIDGE
  For a resolution refer to Documentation/kbuild/kconfig-language.txt
  subsection "Kconfig recursive dependency limitations"
  drivers/gpu/drm/bridge/Kconfig:1:       symbol DRM_BRIDGE is selected by DRM_TVE200

To work around this, add a new option DRM_ETNAVIV_THERMAL to optionally
enable thermal throttling support and make DRM_ETNAVIV select THERMAL
at the same time.

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2018-03-19 08:42:51 +01:00
arch ARM: dts: omap3-n900: Fix the audio CODEC's reset pin 2018-03-19 08:42:50 +01:00
block blk-mq: don't call io sched's .requeue_request when requeueing rq to ->dispatch 2018-03-08 22:41:20 -08:00
certs License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
crypto crypto: ecc - Fix NULL pointer deref. on no default_rng 2018-03-19 08:42:49 +01:00
Documentation usb: host: xhci-rcar: add support for r8a77965 2018-03-19 08:42:45 +01:00
drivers
firmware License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
fs userns: Don't fail follow_automount based on s_user_ns 2018-03-19 08:42:50 +01:00
include dma-buf/fence: Fix lock inversion within dma-fence-array 2018-03-19 08:42:47 +01:00
init kmemcheck: stop using GFP_NOTRACK and SLAB_NOTRACK 2018-02-22 15:42:23 +01:00
ipc License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
kernel sched: Stop resched_cpu() from sending IPIs to offline CPUs 2018-03-19 08:42:49 +01:00
lib lib/bug.c: exclude non-BUG/WARN exceptions from report_bug() 2018-03-15 10:54:32 +01:00
mm mm/memblock.c: hardcode the end_pfn being -1 2018-03-15 10:54:32 +01:00
net xfrm: Fix xfrm_replay_overflow_offload_esn 2018-03-19 08:42:50 +01:00
samples samples/bpf: adjust rlimit RLIMIT_MEMLOCK for xdp1 2017-12-20 10:10:31 +01:00
scripts objtool, retpolines: Integrate objtool with retpoline support more closely 2018-03-15 10:54:38 +01:00
security selinux: skip bounded transition processing if the policy isn't loaded 2018-02-25 11:07:49 +01:00
sound ASoC: rt5651: Fix regcache sync errors on resume 2018-03-19 08:42:44 +01:00
tools test_firmware: fix setting old custom fw path back on exit 2018-03-19 08:42:49 +01:00
usr initramfs: fix initramfs rebuilds w/ compression after disabling 2017-11-03 07:39:19 -07:00
virt KVM: mmu: Fix overlap between public and private memslots 2018-03-08 22:41:24 -08:00
.cocciconfig scripts: add Linux .cocciconfig for coccinelle 2016-07-22 12:13:39 +02:00
.get_maintainer.ignore Add hch to .get_maintainer.ignore 2015-08-21 14:30:10 -07:00
.gitattributes .gitattributes: set git diff driver for C source code files 2016-10-07 18:46:30 -07:00
.gitignore kbuild: rpm-pkg: keep spec file until make mrproper 2018-02-13 10:19:46 +01:00
.mailmap .mailmap: Add Maciej W. Rozycki's Imagination e-mail address 2017-11-10 12:16:15 -08:00
COPYING [PATCH] update FSF address in COPYING 2005-09-10 10:06:29 -07:00
CREDITS MAINTAINERS: update TPM driver infrastructure changes 2017-11-09 17:58:40 -08:00
Kbuild License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
Kconfig License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
MAINTAINERS dt-bindings: Document mti,mips-cpc binding 2018-03-15 10:54:35 +01:00
Makefile Linux 4.14.27 2018-03-15 10:54:38 +01:00
README README: add a new README file, pointing to the Documentation/ 2016-10-24 08:12:35 -02:00

README 

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

This file was moved to Documentation/admin-guide/README.rst

Please notice that there are several guides for kernel developers and users.
These guides can be rendered in a number of formats, like HTML and PDF.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.

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.