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2019-06-07Documentation: fix typo CLOCK_MONONOTNIC_COARSEAurelien Thierry1-1/+1
Fix typo in documentation file timekeeping.rst: CLOCK_MONONOTNIC_COARSE should be CLOCK_MONOTONIC_COARSE. Signed-off-by: Aurelien Thierry <aurelien.thierry@quoscient.io> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-06-07Documentation/dm-init: fix multi device exampleHelen Koike1-7/+7
The example in the docs regarding multiple device-mappers is invalid (it has a wrong number of arguments), it's a left over from previous versions of the patch. Replace the example with an valid and tested one. Signed-off-by: Helen Koike <helen.koike@collabora.com> Reviewed-by: Stephen Boyd <swboyd@chromium.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-06-07Documentation: DMA-API: fix a function name of max_mapping_sizeYoshihiro Shimoda1-1/+1
The exported function name is dma_max_mapping_size(), not dma_direct_max_mapping_size() so that this patch fixes the function name in the documentation. Fixes: 133d624b1cee ("dma: Introduce dma_max_mapping_size()") Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-06-06docs/core-api: Add integer power functions to the listAndy Shevchenko1-0/+9
Some times integer power functions, such as int_sqrt(), are needed, but there is nothing about them in the generated documentation. Fill the gap by adding a reference to the corresponding exported functions. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Mike Rapoport <rppt@linux.ibm.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-06-06docs/core-api: Add string helpers API to the listAndy Shevchenko1-0/+3
Some times string helpers are needed, but there is nothing about them in the generated documentation. Fill the gap by adding a reference to string_helpers.c exported functions. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Mike Rapoport <rppt@linux.ibm.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-06-06Merge branch 'vfs' into docs-nextJonathan Corbet3-1268/+1429
Work from Tobin Harding: Here is an updated version of the VFS doc conversion. This series in no way represents a final point for the VFS documentation rather it is a small step towards getting VFS docs updated. This series does not update the content of vfs.txt, only does formatting.
2019-06-06docs: filesystems: vfs: Render method descriptionsTobin C. Harding1-505/+642
Currently vfs.rst does not render well into HTML the method descriptions for VFS data structures. We can improve the HTML output by putting the description string on a new line following the method name. Suggested-by: Jonathan Corbet <corbet@lwn.net> Signed-off-by: Tobin C. Harding <tobin@kernel.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-06-04docs: Completely fix the remote build tree caseJonathan Corbet1-5/+5
My previous fix miserably failed to catch all of the invocations of "./scripts/sphinx-pre-install", so we got build errors. Try again with more caffeine. Reported-by: kbuild test robot <lkp@intel.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-05-31docs: look for sphinx-pre-install in the source treeJonathan Corbet1-1/+1
Recent makefile changes included an invocation of ./scripts/sphinx-pre-install. Unfortunately, that fails when a separate build directory is in use with: /bin/bash: ./scripts/sphinx-pre-install: No such file or directory Use $(srctree) to fully specify the location of this script. Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-05-30docs: requirements.txt: recommend Sphinx 1.7.9Mauro Carvalho Chehab2-11/+10
As discussed at the linux-doc ML, while we'll still support version 1.3, it is time to recommend a more modern version. So, let's switch the minimal requirements to Sphinx 1.7.9, as it has the "-jauto" flag, with makes a lot faster when building documentation. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-05-30docs: by default, build docs a lot faster with Sphinx >= 1.7Mauro Carvalho Chehab1-0/+2
Since Sphinx version 1.7, it is possible to use "-jauto" in order to speedup documentation builds. On older versions, while -j was already supported, one would need to set the number of threads manually. So, if SPHINXOPTS is not provided, add -jauto, in order to speed up the build. That makes it *a lot* times faster than without -j. If one really wants to slow things down, it can just use: make SPHINXOPTS=-j1 htmldocs Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> [ jc: fixed perl magic to determine sphinx version ] Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-05-30scripts/sphinx-pre-install: always check if version is compatible with buildMauro Carvalho Chehab1-0/+5
Call the script every time a make docs target is selected, on a simplified check mode. With this change, the script will set two vars: $min_version - obtained from `needs_sphinx` var inside conf.py (currently, '1.3') $rec_version - obtained from sphinx/requirements.txt. With those changes, a target like "make htmldocs" will do: 1) If no sphinx-build/sphinx-build3 is found, it will run the script on normal mode as before, checking for all system dependencies and providing install hints for the needed programs and will abort the build; 2) If no sphinx-build/sphinx-build3 is found, but there is a sphinx_${VER}/bin/activate file, and if ${VER} >= $min_version (string comparation), it will run in full mode, and will recommend to activate the virtualenv. If there are multiple virtualenvs, it will string sort the versions, recommending the highest version and will abort the build; 3) If Sphinx is detected but has a version lower than $min_version, it will run in full mode - with will recommend creating a virtual env using sphinx/requirements.txt, and will abort the build. 4) If Sphinx is detected and version is lower than $rec_version, it will run in full mode and will recommend creating a virtual env using sphinx/requirements.txt. In this case, it **won't** abort the build. 5) If Sphinx is detected and version is equal or righer than $rec_version it will return just after detecting the version ("quick mode"), not checking if are there any missing dependencies. Just like before, if one wants to install Sphinx from the distro, it has to call the script manually and use `--no-virtualenv` argument to get the hints for his OS: You should run: sudo dnf install -y python3-sphinx python3-sphinx_rtd_theme While here, add a small help for the three optional arguments for the script. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-05-29docs: filesystems: vfs: Convert vfs.txt to RSTTobin C. Harding2-281/+299
vfs.txt is currently stale. If we convert it to RST this is a good first step in the process of getting the VFS documentation up to date. This patch does the following (all as a single patch so as not to introduce any new SPHINX build warnings) - Use '.. code-block:: c' for C code blocks and indent the code blocks. - Use double backticks for struct member descriptions. - Fix a couple of build warnings by guarding pointers (*) with double backticks .e.g ``*ptr``. - Add vfs to Documentation/filesystems/index.rst The member descriptions paragraph indentation was not touched. It is not pretty but these do not cause build warnings. These descriptions all need updating anyways so leave it as it is for now. Signed-off-by: Tobin C. Harding <tobin@kernel.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-05-29docs: filesystems: vfs: Convert spaces to tabsTobin C. Harding1-62/+62
There are bunch of places with 8 spaces, in preparation for correctly indenting all code snippets (during conversion to RST) change these to use tabspaces. This patch is whitespace only. Convert instances of 8 consecutive spaces to a single tabspace. Signed-off-by: Tobin C. Harding <tobin@kernel.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-05-29docs: filesystems: vfs: Fix pre-amble indentationTobin C. Harding1-3/+3
Currently file pre-amble contains custom indentation. RST is not going to like this, lets left-align the text. Put the copyright notices in a list in preparation for converting document to RST. Tested-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Tobin C. Harding <tobin@kernel.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-05-29docs: filesystems: vfs: Use SPDX identifierTobin C. Harding1-2/+2
Currently the licence is indicated via a custom string. We have SPDX license identifiers now for this task. Use SPDX license identifier matching current license string. Tested-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Tobin C. Harding <tobin@kernel.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-05-29docs: filesystems: vfs: Use correct initial headingTobin C. Harding1-2/+3
Kernel RST has a preferred heading adornment scheme. Currently all the heading adornments follow this scheme except the document heading. Use correct heading adornment for initial heading. Tested-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Tobin C. Harding <tobin@kernel.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-05-29docs: filesystems: vfs: Use uniform spacing around headingsTobin C. Harding1-0/+9
Currently spacing before and after headings is non-uniform. Use two blank lines before a heading and one after the heading. Use uniform spacing around headings. Tested-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Tobin C. Harding <tobin@kernel.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-05-29docs: filesystems: vfs: Use 72 character column widthTobin C. Harding1-101/+97
In preparation for conversion to RST format use the kernels favoured documentation column width. If we are going to do this we might as well do it thoroughly. Just do the paragraphs (not the indented stuff), the rest will be done during indentation fix up patch. This patch is whitespace only, no textual changes. Use 72 character column width for all paragraph sections. Tested-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Tobin C. Harding <tobin@kernel.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-05-29docs: filesystems: vfs: Use uniform space after period.Tobin C. Harding1-123/+123
Currently sometimes document has a single space after a period and sometimes it has double. Whichever we use it should be uniform. Use double space after period, be uniform. Tested-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Tobin C. Harding <tobin@kernel.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-05-29docs: filesystems: vfs: Remove space before tabTobin C. Harding1-39/+39
Currently the file has a bunch of spaces before tabspaces. This is a nuisance when patching the file because they show up whenever we touch these lines. Let's just fix them all now in preparation for doing the RST conversion. Remove spaces before tabspaces. Tested-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Tobin C. Harding <tobin@kernel.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-05-29doc: kernel-parameters.txt: fix documentation of nmi_watchdog parameterZhenzhong Duan1-2/+3
The default behavior of hardlockup depends on the config of CONFIG_BOOTPARAM_HARDLOCKUP_PANIC. Fix the description of nmi_watchdog to make it clear. Suggested-by: Steven Rostedt (VMware) <rostedt@goodmis.org> Signed-off-by: Zhenzhong Duan <zhenzhong.duan@oracle.com> Reviewed-by: Joel Fernandes (Google) <joel@joelfernandes.org> Acked-by: Ingo Molnar <mingo@kernel.org> Acked-by: Steven Rostedt (VMware) <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Kees Cook <keescook@chromium.org> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: linux-doc@vger.kernel.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-05-29docs: tracing: Fix typos in histogram.rstMasanari Iida1-5/+5
This patch fixes some spelling typos in histogram.rst Signed-off-by: Masanari Iida <standby24x7@gmail.com> Acked-by: Steven Rostedt (VMware) <rostedt@goodmis.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-05-29docs: cdomain.py: get rid of a warning since version 1.8Mauro Carvalho Chehab1-1/+4
There's a new warning about a deprecation function. Add a logic at cdomain.py to avoid that. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-05-24docs: No structured comments in include/linux/interconnect.hJonathan Corbet1-3/+2
Remove the kernel-doc directive for this file, since there's nothing there and it generates a warning. Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-05-24docs: no structured comments in fs/file_table.cJonathan Corbet1-3/+0
Remove the kernel-doc directive, since there are only warnings to be found there. Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-05-24docs: No structured comments in target_core_device.cJonathan Corbet1-2/+2
Documentation/driver-api/target.rst is seeking kerneldoc comments in drivers/target/target_core_device.c, but no such comments exist. Take out the kernel-doc directive and eliminate one warning from the build. Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-05-24docs: Do not seek kerneldoc comments in hw-consumer.hJonathan Corbet1-1/+0
There are no kerneldoc comments here, so looking for them just yields a warning in the docs build. Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-05-24docs: Fix a misdirected kerneldoc directiveJonathan Corbet1-1/+1
The stratix10 service layer documentation tried to include a kerneldoc comments for a nonexistent struct; leading to a "no structured comments found" message. Switch it to stratix10_svc_command_config_type, which appears at that spot in the sequence and was not included. Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-05-24docs: Do not seek comments in kernel/rcu/tree_plugin.hJonathan Corbet2-5/+0
There are no kerneldoc comments in this file, so do not attempt to include them in the docs build. Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-05-24docs: Fix conf.py for Sphinx 2.0Jonathan Corbet1-1/+1
Our version check in Documentation/conf.py never envisioned a world where Sphinx moved beyond 1.x. Now that the unthinkable has happened, fix our version check to handle higher version numbers correctly. Cc: stable@vger.kernel.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-05-23docs: fix multiple doc build warnings in enumeration.rstJonathan Corbet1-1/+1
The conversion of acpi/enumeration.txt to RST included one markup error, leading to many warnings like: .../firmware-guide/acpi/enumeration.rst:430: WARNING: Unexpected indentation. Add the missing colon and create some peace. Fixes: c24bc66e8157 ("Documentation: ACPI: move enumeration.txt to firmware-guide/acpi and convert to reST") Cc: Changbin Du <changbin.du@gmail.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-05-23docs: fix numaperf.rst and add it to the doc treeJonathan Corbet2-1/+2
Commit 13bac55ef7ae ("doc/mm: New documentation for memory performance") added numaperf.rst, but did not add it to the TOC tree. There was also an incorrectly marked literal block leading to this warning sequence: numaperf.rst:24: WARNING: Unexpected indentation. numaperf.rst:24: WARNING: Inline substitution_reference start-string without end-string. numaperf.rst:25: WARNING: Block quote ends without a blank line; unexpected unindent. Fix the block and add the file to the document tree. Fixes: 13bac55ef7ae ("doc/mm: New documentation for memory performance") Cc: Keith Busch <keith.busch@intel.com> Reviewed-by: Mike Rapoport <rppt@linux.ibm.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-05-23doc: Cope with the deprecation of AutoReporterJonathan Corbet1-8/+26
AutoReporter is going away; recent versions of sphinx emit a warning like: Documentation/sphinx/kerneldoc.py:125: RemovedInSphinx20Warning: AutodocReporter is now deprecated. Use sphinx.util.docutils.switch_source_input() instead. Make the switch. But switch_source_input() only showed up in 1.7, so we have to do ugly version checks to keep things working in older versions. Cc: stable@vger.kernel.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-05-23doc: Cope with Sphinx logging deprecationsJonathan Corbet3-21/+59
Recent versions of sphinx will emit messages like: Documentation/sphinx/kerneldoc.py:103: RemovedInSphinx20Warning: app.warning() is now deprecated. Use sphinx.util.logging instead. Switch to sphinx.util.logging to make this unsightly message go away. Alas, that interface was only added in version 1.6, so we have to add a version check to keep things working with older sphinxes. Cc: stable@vger.kernel.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-05-21Documentation: kdump: fix minor typoCengiz Can1-1/+1
kdump.txt had a minor typo. Signed-off-by: Cengiz Can <cengizc@gmail.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-05-20counter: fix Documentation build error due to incorrect source file nameRandy Dunlap1-1/+1
Fix kernel-doc build error in Documentation/driver-api/generic-counter.rst of incorrect source file name. Fixes this warning and error: Error: Cannot open file ../drivers/counter/generic-counter.c WARNING: kernel-doc '../scripts/kernel-doc -rst -enable-lineno -export ../drivers/counter/generic-counter.c' failed with return code 2 Fixes: 09e7d4ed8991 ("docs: Add Generic Counter interface documentation") Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Acked-by: William Breathitt Gray <vilhelm.gray@gmail.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-05-19Merge branch 'akpm' (patches from Andrew)Linus Torvalds1-0/+1
Merge yet more updates from Andrew Morton: "A few final bits: - large changes to vmalloc, yielding large performance benefits - tweak the console-flush-on-panic code - a few fixes" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: panic: add an option to replay all the printk message in buffer initramfs: don't free a non-existent initrd fs/writeback.c: use rcu_barrier() to wait for inflight wb switches going into workqueue when umount mm/compaction.c: correct zone boundary handling when isolating pages from a pageblock mm/vmap: add DEBUG_AUGMENT_LOWEST_MATCH_CHECK macro mm/vmap: add DEBUG_AUGMENT_PROPAGATE_CHECK macro mm/vmalloc.c: keep track of free blocks for vmap allocation
2019-05-19Merge branch 'i2c/for-next' of ↵Linus Torvalds1-0/+3
git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux Pull i2c updates from Wolfram Sang: "Some I2C core API additions which are kind of simple but enhance error checking for users a lot, especially by returning errno now. There are wrappers to still support the old API but it will be removed once all users are converted" * 'i2c/for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: i2c: core: add device-managed version of i2c_new_dummy i2c: core: improve return value handling of i2c_new_device and i2c_new_dummy
2019-05-19Merge branch 'timers-urgent-for-linus' of ↵Linus Torvalds1-1/+3
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull clocksource updates from Ingo Molnar: "Misc clocksource/clockevent driver updates that came in a bit late but are ready for v5.2" * 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: misc: atmel_tclib: Do not probe already used TCBs clocksource/drivers/timer-atmel-tcb: Convert tc_clksrc_suspend|resume() to static clocksource/drivers/tcb_clksrc: Rename the file for consistency clocksource/drivers/timer-atmel-pit: Rework Kconfig option clocksource/drivers/tcb_clksrc: Move Kconfig option ARM: at91: Implement clocksource selection clocksource/drivers/tcb_clksrc: Use tcb as sched_clock clocksource/drivers/tcb_clksrc: Stop depending on atmel_tclib ARM: at91: move SoC specific definitions to SoC folder clocksource/drivers/timer-milbeaut: Cleanup common register accesses clocksource/drivers/timer-milbeaut: Add shutdown function clocksource/drivers/timer-milbeaut: Fix to enable one-shot timer clocksource/drivers/tegra: Rework for compensation of suspend time clocksource/drivers/sp804: Add COMPILE_TEST to CONFIG_ARM_TIMER_SP804 clocksource/drivers/sun4i: Add a compatible for suniv dt-bindings: timer: Add Allwinner suniv timer
2019-05-19Merge branch 'irq-urgent-for-linus' of ↵Linus Torvalds3-1/+150
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull IRQ chip updates from Ingo Molnar: "A late irqchips update: - New TI INTR/INTA set of drivers - Rewrite of the stm32mp1-exti driver as a platform driver - Update the IOMMU MSI mapping API to be RT friendly - A number of cleanups and other low impact fixes" * 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (34 commits) iommu/dma-iommu: Remove iommu_dma_map_msi_msg() irqchip/gic-v3-mbi: Don't map the MSI page in mbi_compose_m{b, s}i_msg() irqchip/ls-scfg-msi: Don't map the MSI page in ls_scfg_msi_compose_msg() irqchip/gic-v3-its: Don't map the MSI page in its_irq_compose_msi_msg() irqchip/gicv2m: Don't map the MSI page in gicv2m_compose_msi_msg() iommu/dma-iommu: Split iommu_dma_map_msi_msg() in two parts genirq/msi: Add a new field in msi_desc to store an IOMMU cookie arm64: arch_k3: Enable interrupt controller drivers irqchip/ti-sci-inta: Add msi domain support soc: ti: Add MSI domain bus support for Interrupt Aggregator irqchip/ti-sci-inta: Add support for Interrupt Aggregator driver dt-bindings: irqchip: Introduce TISCI Interrupt Aggregator bindings irqchip/ti-sci-intr: Add support for Interrupt Router driver dt-bindings: irqchip: Introduce TISCI Interrupt router bindings gpio: thunderx: Use the default parent apis for {request,release}_resources genirq: Introduce irq_chip_{request,release}_resource_parent() apis firmware: ti_sci: Add helper apis to manage resources firmware: ti_sci: Add RM mapping table for am654 firmware: ti_sci: Add support for IRQ management firmware: ti_sci: Add support for RM core ops ...
2019-05-19Merge tag 'armsoc-late' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/socLinus Torvalds1-0/+1
Pull ARM SoC late updates from Olof Johansson: "This is some material that we picked up into our tree late. Most of it are smaller fixes and additions, some defconfig updates due to recent development, etc. Code-wise the largest portion is a series of PM updates for the at91 platform, and those have been in linux-next a while through the at91 tree before we picked them up" * tag 'armsoc-late' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (29 commits) arm64: dts: sprd: Add clock properties for serial devices Opt out of scripts/get_maintainer.pl ARM: ixp4xx: Remove duplicated include from common.c soc: ixp4xx: qmgr: Fix an NULL vs IS_ERR() check in probe arm64: tegra: Disable XUSB support on Jetson TX2 arm64: tegra: Enable SMMU translation for PCI on Tegra186 arm64: tegra: Fix insecure SMMU users for Tegra186 arm64: tegra: Select ARM_GIC_PM amba: tegra-ahb: Mark PM functions as __maybe_unused ARM: dts: logicpd-som-lv: Fix MMC1 card detect ARM: mvebu: drop return from void function ARM: mvebu: prefix coprocessor operand with p ARM: mvebu: drop unnecessary label ARM: mvebu: fix a leaked reference by adding missing of_node_put ARM: socfpga_defconfig: enable LTC2497 ARM: mvebu: kirkwood: remove error message when retrieving mac address ARM: at91: sama5: make ov2640 as a module ARM: OMAP1: ams-delta: fix early boot crash when LED support is disabled ARM: at91: remove HAVE_FB_ATMEL for sama5 SoC as they use DRM soc/fsl/qe: Fix an error code in qe_pin_request() ...
2019-05-19Merge tag 'riscv-for-linus-5.2-mw2' of ↵Linus Torvalds1-0/+51
git://git.kernel.org/pub/scm/linux/kernel/git/palmer/riscv-linux Pull RISC-V updates from Palmer Dabbelt: "This contains an assortment of RISC-V related patches that I'd like to target for the 5.2 merge window. Most of the patches are cleanups, but there are a handful of user-visible changes: - The nosmp and nr_cpus command-line arguments are now supported, which work like normal. - The SBI console no longer installs itself as a preferred console, we rely on standard mechanisms (/chosen, command-line, hueristics) instead. - sfence_remove_sfence_vma{,_asid} now pass their arguments along to the SBI call. - Modules now support BUG(). - A missing sfence.vma during boot has been added. This bug only manifests during boot. - The arch/riscv support for SiFive's L2 cache controller has been merged, which should un-block the EDAC framework work. I've only tested this on QEMU again, as I didn't have time to get things running on the Unleashed. The latest master from this morning merges in cleanly and passes the tests as well" * tag 'riscv-for-linus-5.2-mw2' of git://git.kernel.org/pub/scm/linux/kernel/git/palmer/riscv-linux: (31 commits) riscv: fix locking violation in page fault handler RISC-V: sifive_l2_cache: Add L2 cache controller driver for SiFive SoCs RISC-V: Add DT documentation for SiFive L2 Cache Controller RISC-V: Avoid using invalid intermediate translations riscv: Support BUG() in kernel module riscv: Add the support for c.ebreak check in is_valid_bugaddr() riscv: support trap-based WARN() riscv: fix sbi_remote_sfence_vma{,_asid}. riscv: move switch_mm to its own file riscv: move flush_icache_{all,mm} to cacheflush.c tty: Don't force RISCV SBI console as preferred console RISC-V: Access CSRs using CSR numbers RISC-V: Add interrupt related SCAUSE defines in asm/csr.h RISC-V: Use tabs to align macro values in asm/csr.h RISC-V: Fix minor checkpatch issues. RISC-V: Support nr_cpus command line option. RISC-V: Implement nosmp commandline option. RISC-V: Add RISC-V specific arch_match_cpu_phys_id riscv: vdso: drop unnecessary cc-ldoption riscv: call pm_power_off from machine_halt / machine_power_off ...
2019-05-18panic: add an option to replay all the printk message in bufferFeng Tang1-0/+1
Currently on panic, kernel will lower the loglevel and print out pending printk msg only with console_flush_on_panic(). Add an option for users to configure the "panic_print" to replay all dmesg in buffer, some of which they may have never seen due to the loglevel setting, which will help panic debugging . [feng.tang@intel.com: keep the original console_flush_on_panic() inside panic()] Link: http://lkml.kernel.org/r/1556199137-14163-1-git-send-email-feng.tang@intel.com [feng.tang@intel.com: use logbuf lock to protect the console log index] Link: http://lkml.kernel.org/r/1556269868-22654-1-git-send-email-feng.tang@intel.com Link: http://lkml.kernel.org/r/1556095872-36838-1-git-send-email-feng.tang@intel.com Signed-off-by: Feng Tang <feng.tang@intel.com> Reviewed-by: Petr Mladek <pmladek@suse.com> Cc: Aaro Koskinen <aaro.koskinen@nokia.com> Cc: Petr Mladek <pmladek@suse.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com> Cc: Kees Cook <keescook@chromium.org> Cc: Borislav Petkov <bp@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-05-17Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds5-30/+502
Pull KVM updates from Paolo Bonzini: "ARM: - support for SVE and Pointer Authentication in guests - PMU improvements POWER: - support for direct access to the POWER9 XIVE interrupt controller - memory and performance optimizations x86: - support for accessing memory not backed by struct page - fixes and refactoring Generic: - dirty page tracking improvements" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (155 commits) kvm: fix compilation on aarch64 Revert "KVM: nVMX: Expose RDPMC-exiting only when guest supports PMU" kvm: x86: Fix L1TF mitigation for shadow MMU KVM: nVMX: Disable intercept for FS/GS base MSRs in vmcs02 when possible KVM: PPC: Book3S: Remove useless checks in 'release' method of KVM device KVM: PPC: Book3S HV: XIVE: Fix spelling mistake "acessing" -> "accessing" KVM: PPC: Book3S HV: Make sure to load LPID for radix VCPUs kvm: nVMX: Set nested_run_pending in vmx_set_nested_state after checks complete tests: kvm: Add tests for KVM_SET_NESTED_STATE KVM: nVMX: KVM_SET_NESTED_STATE - Tear down old EVMCS state before setting new state tests: kvm: Add tests for KVM_CAP_MAX_VCPUS and KVM_CAP_MAX_CPU_ID tests: kvm: Add tests to .gitignore KVM: Introduce KVM_CAP_MANUAL_DIRTY_LOG_PROTECT2 KVM: Fix kvm_clear_dirty_log_protect off-by-(minus-)one KVM: Fix the bitmap range to copy during clear dirty KVM: arm64: Fix ptrauth ID register masking logic KVM: x86: use direct accessors for RIP and RSP KVM: VMX: Use accessors for GPRs outside of dedicated caching logic KVM: x86: Omit caching logic for always-available GPRs kvm, x86: Properly check whether a pfn is an MMIO or not ...
2019-05-17i2c: core: add device-managed version of i2c_new_dummyHeiner Kallweit1-0/+3
i2c_new_dummy is typically called from the probe function of the driver for the primary i2c client. It requires calls to i2c_unregister_device in the error path of the probe function and in the remove function. This can be simplified by introducing a device-managed version. Note the changed error case return value type: i2c_new_dummy returns NULL whilst devm_i2c_new_dummy_device returns an ERR_PTR. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> [wsa: rename new functions and fix minor kdoc issues] Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Reviewed-by: Peter Rosin <peda@axentia.se> Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com> Reviewed-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2019-05-16RISC-V: Add DT documentation for SiFive L2 Cache ControllerYash Shah1-0/+51
Add device tree bindings for SiFive FU540 L2 cache controller driver Signed-off-by: Yash Shah <yash.shah@sifive.com> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
2019-05-16Merge tag 'devicetree-for-5.2-part2' of ↵Linus Torvalds2-476/+977
git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux Pull Devicetree vendor prefix conversion from Rob Herring: "Conversion of vendor-prefixes.txt to json-schema" * tag 'devicetree-for-5.2-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: dt-bindings: Convert vendor prefixes to json-schema
2019-05-16Merge tag 'afs-fixes-20190516' of ↵Linus Torvalds1-1/+20
git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs Pull misc AFS fixes from David Howells: "This fixes a set of miscellaneous issues in the afs filesystem, including: - leak of keys on file close. - broken error handling in xattr functions. - missing locking when updating VL server list. - volume location server DNS lookup whereby preloaded cells may not ever get a lookup and regular DNS lookups to maintain server lists consume power unnecessarily. - incorrect error propagation and handling in the fileserver iteration code causes operations to sometimes apparently succeed. - interruption of server record check/update side op during fileserver iteration causes uninterruptible main operations to fail unexpectedly. - callback promise expiry time miscalculation. - over invalidation of the callback promise on directories. - double locking on callback break waking up file locking waiters. - double increment of the vnode callback break counter. Note that it makes some changes outside of the afs code, including: - an extra parameter to dns_query() to allow the dns_resolver key just accessed to be immediately invalidated. AFS is caching the results itself, so the key can be discarded. - an interruptible version of wait_var_event(). - an rxrpc function to allow the maximum lifespan to be set on a call. - a way for an rxrpc call to be marked as non-interruptible" * tag 'afs-fixes-20190516' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs: afs: Fix double inc of vnode->cb_break afs: Fix lock-wait/callback-break double locking afs: Don't invalidate callback if AFS_VNODE_DIR_VALID not set afs: Fix calculation of callback expiry time afs: Make dynamic root population wait uninterruptibly for proc_cells_lock afs: Make some RPC operations non-interruptible rxrpc: Allow the kernel to mark a call as being non-interruptible afs: Fix error propagation from server record check/update afs: Fix the maximum lifespan of VL and probe calls rxrpc: Provide kernel interface to set max lifespan on a call afs: Fix "kAFS: AFS vnode with undefined type 0" afs: Fix cell DNS lookup Add wait_var_event_interruptible() dns_resolver: Allow used keys to be invalidated afs: Fix afs_cell records to always have a VL server list record afs: Fix missing lock when replacing VL server list afs: Fix afs_xattr_get_yfs() to not try freeing an error value afs: Fix incorrect error handling in afs_xattr_get_acl() afs: Fix key leak in afs_release() and afs_evict_inode()
2019-05-16Merge tag 'for-5.2/dm-changes-v2' of ↵Linus Torvalds2-1/+303
git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm Pull device mapper updates from Mike Snitzer: - Improve DM snapshot target's scalability by using finer grained locking. Requires some list_bl interface improvements. - Add ability for DM integrity to use a bitmap mode, that tracks regions where data and metadata are out of sync, instead of using a journal. - Improve DM thin provisioning target to not write metadata changes to disk if the thin-pool and associated thin devices are merely activated but not used. This avoids metadata corruption due to concurrent activation of thin devices across different OS instances (e.g. split brain scenarios, which ultimately would be avoided if proper device filters were used -- but not having proper filtering has proven a very common configuration mistake) - Fix missing call to path selector type->end_io in DM multipath. This fixes reported performance problems due to inaccurate path selector IO accounting causing an imbalance of IO (e.g. avoiding issuing IO to particular path due to it seemingly being heavily used). - Fix bug in DM cache metadata's loading of its discard bitset that could lead to all cache blocks being discarded if the very first cache block was discarded (thankfully in practice the first cache block is generally in use; be it FS superblock, partition table, disk label, etc). - Add testing-only DM dust target which simulates a device that has failing sectors and/or read failures. - Fix a DM init error path reference count hang that caused boot hangs if user supplied malformed input on kernel commandline. - Fix a couple issues with DM crypt target's logging being overly verbose or lacking context. - Various other small fixes to DM init, DM multipath, DM zoned, and DM crypt. * tag 'for-5.2/dm-changes-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm: (42 commits) dm: fix a couple brace coding style issues dm crypt: print device name in integrity error message dm crypt: move detailed message into debug level dm ioctl: fix hang in early create error condition dm integrity: whitespace, coding style and dead code cleanup dm integrity: implement synchronous mode for reboot handling dm integrity: handle machine reboot in bitmap mode dm integrity: add a bitmap mode dm integrity: introduce a function add_new_range_and_wait() dm integrity: allow large ranges to be described dm ingerity: pass size to dm_integrity_alloc_page_list() dm integrity: introduce rw_journal_sectors() dm integrity: update documentation dm integrity: don't report unused options dm integrity: don't check null pointer before kvfree and vfree dm integrity: correctly calculate the size of metadata area dm dust: Make dm_dust_init and dm_dust_exit static dm dust: remove redundant unsigned comparison to less than zero dm mpath: always free attached_handler_name in parse_path() dm init: fix max devices/targets checks ...