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870992 Commits (d8bced4b72a2a2aee8567e7d13ac2b52dad93c22)

Author SHA1 Message Date
Alexandre Belloni d8bced4b72 rtc: vt8500: convert to devm_rtc_allocate_device
This allows further improvement of the driver.

Link: https://lore.kernel.org/r/20191016201626.31309-4-alexandre.belloni@bootlin.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-10-19 22:33:13 +02:00
Alexandre Belloni 3e7d639720 rtc: vt8500: remove superfluous error message
The RTC core now has error messages in case of registration failure, there
is no need to have other messages in the drivers.

Link: https://lore.kernel.org/r/20191016201626.31309-3-alexandre.belloni@bootlin.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-10-19 22:33:11 +02:00
Alexandre Belloni e979d0490a rtc: vt8500: remove useless label
err_return doesn't do anything special, simply return instead of goto.

Link: https://lore.kernel.org/r/20191016201626.31309-2-alexandre.belloni@bootlin.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-10-19 22:33:09 +02:00
Alexandre Belloni 8d6ac1cec7 rtc: add timestamp for end of 2199
Some RTCs handle date up to 2199.

Link: https://lore.kernel.org/r/20191016201626.31309-1-alexandre.belloni@bootlin.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-10-19 22:33:07 +02:00
Alexandre Belloni 9e8a968fe3 rtc: s35390a: set range
This is a standard BCD RTC that will fail in 2100.

Link: https://lore.kernel.org/r/20191016200848.30246-2-alexandre.belloni@bootlin.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-10-19 22:33:05 +02:00
Alexandre Belloni ed6c6dfdbe rtc: s35390a: convert to devm_rtc_allocate_device
This allows further improvement of the driver and removes the need to
forward declare s35390a_driver.

Link: https://lore.kernel.org/r/20191016200848.30246-1-alexandre.belloni@bootlin.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-10-19 22:33:03 +02:00
Alexandre Belloni cb0b97d682 rtc: meson-vrtc: move config option to proper location
The correct location for this option is under platform driver, not i2c
drivers.

Link: https://lore.kernel.org/r/20191014155840.22554-1-alexandre.belloni@bootlin.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-10-16 10:39:00 +02:00
Thomas Bogendoerfer 299b610117 rtc: ds1685: add indirect access method and remove plat_read/plat_write
SGI Octane (IP30) doesn't have RTC register directly mapped into CPU
address space, but accesses RTC registers with an address and data
register.  This is now supported by additional access functions, which
are selected by a new field in platform data. Removed plat_read/plat_write
since there is no user and their usage could introduce lifetime issue,
when functions are placed in different modules.

Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
Acked-by: Joshua Kinard <kumba@gentoo.org>
Reviewed-by: Joshua Kinard <kumba@gentoo.org>
Link: https://lore.kernel.org/r/20191014214621.25257-1-tbogendoerfer@suse.de
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-10-16 10:39:00 +02:00
Thomas Bogendoerfer af818031f4 rtc: ds1685: use devm_platform_ioremap_resource helper
Simplify ioremapping of registers by using devm_platform_ioremap_resource.

Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
Acked-by: Joshua Kinard <kumba@gentoo.org>
Link: https://lore.kernel.org/r/20191011150546.9186-2-tbogendoerfer@suse.de
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-10-14 17:49:22 +02:00
Thomas Bogendoerfer 9e420d7f12 rts: ds1685: remove not needed fields from private struct
A few of the fields in struct ds1685_priv aren't needed at all,
so we can remove it.

Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
Acked-by: Joshua Kinard <kumba@gentoo.org>
Link: https://lore.kernel.org/r/20191011150546.9186-1-tbogendoerfer@suse.de
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-10-14 17:49:21 +02:00
Srinivas Goud d53bf24db3 rtc: xilinx: Fix calibval variable type
This patch fixes the warnings reported by static code analysis.
Updated calibval variable type to unsigned type from signed.

Signed-off-by: Srinivas Goud <srinivas.goud@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Link: https://lore.kernel.org/r/20765c4c27aa92c75426b82fd2815ebef6471492.1570544738.git.michal.simek@xilinx.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-10-14 17:49:19 +02:00
Nick Crews 9aa0d0be38 rtc: wilco-ec: Handle reading invalid times
If the RTC HW returns an invalid time, the rtc_year_days()
call would crash. This patch adds error logging in this
situation, and removes the tm_yday and tm_wday calculations.
These fields should not be relied upon by userspace
according to man rtc, and thus we don't need to calculate
them.

Signed-off-by: Nick Crews <ncrews@chromium.org>
Reviewed-by: Daniel Campello <campello@chromium.org>
Link: https://lore.kernel.org/r/20191004142608.170159-1-ncrews@chromium.org
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-10-14 17:49:17 +02:00
Alexandre Belloni 147dae76db rtc: ds1347: handle century register
The DS1347 can handle years from 0 to 9999, add century register support.

Link: https://lore.kernel.org/r/20191007134724.15505-10-alexandre.belloni@bootlin.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-10-07 15:49:38 +02:00
Alexandre Belloni 860c45b56d rtc: ds1347: use regmap_update_bits
Use regmap_update_bits instead of open coding. Also add proper error
handling.

Link: https://lore.kernel.org/r/20191007134724.15505-9-alexandre.belloni@bootlin.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-10-07 15:49:36 +02:00
Alexandre Belloni d9dcfa5f70 rtc: ds1347: properly handle oscillator failures
The comment in the probe function stating that it disables oscillator stop
detection and glitch filtering is incorrect as it sets bits 3 and 4 while
it should be setting 5 and 6 to achieve that. Then, it is safe to assume
that the oscillator failure detection is actually enabled.

Properly handle oscillator failures by returning -EINVAL when the time and
date are know to be incorrect and reset the flag when the time is set.

Link: https://lore.kernel.org/r/20191007134724.15505-8-alexandre.belloni@bootlin.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-10-07 15:49:35 +02:00
Alexandre Belloni 3ce20a23e2 rtc: ds1347: set range
The DS1347 handle dates from year 0000 to 9999. Leap years are claimed to
be handled correctly in the datasheet.

Link: https://lore.kernel.org/r/20191007134724.15505-7-alexandre.belloni@bootlin.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-10-07 15:49:33 +02:00
Alexandre Belloni 554692d56d rtc: ds1347: convert to devm_rtc_allocate_device
This allows further improvement of the driver.

Link: https://lore.kernel.org/r/20191007134724.15505-6-alexandre.belloni@bootlin.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-10-07 15:49:31 +02:00
Alexandre Belloni 088443c79c rtc: ds1347: mask ALM OUT when reading time
Bit 7 of the minutes registers is ALM OUT. It indicates an alarm fired.
Mask it out when reading the time.

Link: https://lore.kernel.org/r/20191007134724.15505-5-alexandre.belloni@bootlin.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-10-07 15:49:29 +02:00
Alexandre Belloni ff7f9e0533 rtc: ds1347: simplify getting .driver_data
Get 'driver_data' from 'struct device' directly. Going via spi_device is an
unnecessary step.

Link: https://lore.kernel.org/r/20191007134724.15505-4-alexandre.belloni@bootlin.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-10-07 15:49:28 +02:00
Alexandre Belloni 1d84eca6d5 rtc: ds1347: remove useless read
DS1347_SECONDS_REG is read at probe time but the value is simply discarded.
Remove that useless read.

Link: https://lore.kernel.org/r/20191007134724.15505-3-alexandre.belloni@bootlin.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-10-07 15:49:26 +02:00
Alexandre Belloni 590062f479 rtc: ds1347: remove verbose messages
Printing debugging (and opaque) information is not useful and only clutters
the boot log. Remove those messages.

Link: https://lore.kernel.org/r/20191007134724.15505-2-alexandre.belloni@bootlin.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-10-07 15:49:24 +02:00
Alexandre Belloni f00eaa38eb rtc: add a timestamp for year 0
A few RTCs handle dates from year 0 to year 9999. Add a timestamp even if
years before 1970 will probably never be used.

Link: https://lore.kernel.org/r/20191007134724.15505-1-alexandre.belloni@bootlin.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-10-07 15:49:22 +02:00
Stephen Boyd cd7629b27b rtc: armada38x: Use of_device_get_match_data()
Use the more modern API to get the match data out of the of match table.
This saves some code, lines, and nicely avoids referencing the match
table when it is undefined with configurations where CONFIG_OF=n.

Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Andrew Lunn <andrew@lunn.ch>
Cc: Gregory Clement <gregory.clement@bootlin.com>
Cc: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Frank Rowand <frowand.list@gmail.com>
Cc: <linux-rtc@vger.kernel.org>
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Link: https://lore.kernel.org/r/20191004214334.149976-4-swboyd@chromium.org
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-10-07 15:49:20 +02:00
Krzysztof Kozlowski 7da83f1bba rtc: da9063: Handle invalid IRQ from platform_get_irq_byname()
platform_get_irq_byname() might return -errno which later would be
cast to an unsigned int and used in request_irq().

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Tested-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
Link: https://lore.kernel.org/r/20191004150510.6278-1-krzk@kernel.org
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-10-07 15:49:18 +02:00
Alexandre Belloni cf79e7c3c9 rtc: m41t80: set range
This is a standard BCD RTC that will fail in 2100. The century bits don't
help because 2100 will be considered a leap year while it is not.

Link: https://lore.kernel.org/r/20191003213544.5359-1-alexandre.belloni@bootlin.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-10-07 15:49:16 +02:00
YueHaibing 09ef18bcd5 rtc: use devm_platform_ioremap_resource() to simplify code
Use devm_platform_ioremap_resource() to simplify the code a bit.
This is detected by coccinelle.

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Link: https://lore.kernel.org/r/20191006102953.57536-2-yuehaibing@huawei.com
Link: https://lore.kernel.org/r/20191006102953.57536-3-yuehaibing@huawei.com
Link: https://lore.kernel.org/r/20191006102953.57536-4-yuehaibing@huawei.com
Link: https://lore.kernel.org/r/20191006102953.57536-5-yuehaibing@huawei.com
Link: https://lore.kernel.org/r/20191006102953.57536-6-yuehaibing@huawei.com
Link: https://lore.kernel.org/r/20191006102953.57536-7-yuehaibing@huawei.com
Link: https://lore.kernel.org/r/20191006102953.57536-8-yuehaibing@huawei.com
Link: https://lore.kernel.org/r/20191006102953.57536-9-yuehaibing@huawei.com
Link: https://lore.kernel.org/r/20191006102953.57536-10-yuehaibing@huawei.com
Link: https://lore.kernel.org/r/20191006102953.57536-11-yuehaibing@huawei.com
Link: https://lore.kernel.org/r/20191006102953.57536-12-yuehaibing@huawei.com
Link: https://lore.kernel.org/r/20191006102953.57536-13-yuehaibing@huawei.com
Link: https://lore.kernel.org/r/20191006102953.57536-14-yuehaibing@huawei.com
Link: https://lore.kernel.org/r/20191006102953.57536-15-yuehaibing@huawei.com
Link: https://lore.kernel.org/r/20191006102953.57536-16-yuehaibing@huawei.com
Link: https://lore.kernel.org/r/20191006102953.57536-17-yuehaibing@huawei.com
Link: https://lore.kernel.org/r/20191006102953.57536-18-yuehaibing@huawei.com
Link: https://lore.kernel.org/r/20191006102953.57536-19-yuehaibing@huawei.com
Link: https://lore.kernel.org/r/20191006102953.57536-20-yuehaibing@huawei.com
Link: https://lore.kernel.org/r/20191006102953.57536-21-yuehaibing@huawei.com
Link: https://lore.kernel.org/r/20191006102953.57536-22-yuehaibing@huawei.com
Link: https://lore.kernel.org/r/20191006102953.57536-23-yuehaibing@huawei.com
Link: https://lore.kernel.org/r/20191006102953.57536-24-yuehaibing@huawei.com
Link: https://lore.kernel.org/r/20191006102953.57536-25-yuehaibing@huawei.com
Link: https://lore.kernel.org/r/20191006102953.57536-26-yuehaibing@huawei.com
Link: https://lore.kernel.org/r/20191006102953.57536-27-yuehaibing@huawei.com
Link: https://lore.kernel.org/r/20191006102953.57536-28-yuehaibing@huawei.com
Link: https://lore.kernel.org/r/20191006102953.57536-29-yuehaibing@huawei.com
Link: https://lore.kernel.org/r/20191006102953.57536-30-yuehaibing@huawei.com
Link: https://lore.kernel.org/r/20191006102953.57536-31-yuehaibing@huawei.com
Link: https://lore.kernel.org/r/20191006102953.57536-32-yuehaibing@huawei.com
Link: https://lore.kernel.org/r/20191006102953.57536-33-yuehaibing@huawei.com
Link: https://lore.kernel.org/r/20191006102953.57536-34-yuehaibing@huawei.com
Link: https://lore.kernel.org/r/20191006102953.57536-35-yuehaibing@huawei.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-10-07 01:07:35 +02:00
Markus Elfring 89576bebbc rtc: Use devm_platform_ioremap_resource()
Simplify probe by using a known wrapper function.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Link: https://lore.kernel.org/r/4552ef52-f218-93b1-6dfa-668d137676f8@web.de
Link: https://lore.kernel.org/r/5ecfcf43-d6b2-1a38-dee8-b8806f30bc83@web.de
Link: https://lore.kernel.org/r/25448e11-c43f-9ae0-4c43-6f789accc026@web.de
Reviewed-by: Akinobu Mita <akinobu.mita@gmail.com>
Link: https://lore.kernel.org/r/8c17a59c-82ff-aa6b-5653-a38d786d3e83@web.de
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-10-06 21:04:51 +02:00
Emmanuel Nicolet eaa6ef563d rtc: interface: use timeu64_t for range_max
For rtc drivers where rtc->range_max is set U64_MAX, like the PS3 rtc,
rtc_valid_range() always returns -ERANGE. This is because the local
variable range_max has type time64_t, so the test
	if (time < range_min || time > range_max)
		return -ERANGE;
becomes (time < range_min || time > -1), which always evaluates to true.
timeu64_t should be used, since it's the type of rtc->range_max.

Signed-off-by: Emmanuel Nicolet <emmanuel.nicolet@gmail.com>
Link: https://lore.kernel.org/r/20190927110446.GA6289@gmail.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-10-03 21:55:17 +02:00
Claudiu Beznea 288d9cf176 rtc: at91rm9200: use of_device_get_match_data()
Use of_device_get_match_data() since all platforms should now use DT
bindings. AVR32 architecture has been removed in
commit 26202873bb ("avr32: remove support for AVR32 architecture").

Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Link: https://lore.kernel.org/r/1569500132-21164-1-git-send-email-claudiu.beznea@microchip.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-10-03 21:50:47 +02:00
Linus Torvalds 54ecb8f702 Linux 5.4-rc1 2019-09-30 10:35:40 -07:00
Linus Torvalds bb48a59135 for-5.4-rc1-tag
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Merge tag 'for-5.4-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux

Pull btrfs fixes from David Sterba:
 "A bunch of fixes that accumulated in recent weeks, mostly material for
  stable.

  Summary:

   - fix for regression from 5.3 that prevents to use balance convert
     with single profile

   - qgroup fixes: rescan race, accounting leak with multiple writers,
     potential leak after io failure recovery

   - fix for use after free in relocation (reported by KASAN)

   - other error handling fixups"

* tag 'for-5.4-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
  btrfs: qgroup: Fix reserved data space leak if we have multiple reserve calls
  btrfs: qgroup: Fix the wrong target io_tree when freeing reserved data space
  btrfs: Fix a regression which we can't convert to SINGLE profile
  btrfs: relocation: fix use-after-free on dead relocation roots
  Btrfs: fix race setting up and completing qgroup rescan workers
  Btrfs: fix missing error return if writeback for extent buffer never started
  btrfs: adjust dirty_metadata_bytes after writeback failure of extent buffer
  Btrfs: fix selftests failure due to uninitialized i_mode in test inodes
2019-09-30 10:25:24 -07:00
Linus Torvalds 80b29b6b8c csky-for-linus-5.4-rc1: arch/csky patches for 5.4-rc1
This round of csky subsystem just some fixups.
 
 Fixup:
  - Fixup mb() synchronization problem
  - Fixup dma_alloc_coherent with PAGE_SO attribute
  - Fixup cache_op failed when cross memory ZONEs
  - Optimize arch_sync_dma_for_cpu/device with dma_inv_range
  - Fixup ioremap function losing
  - Fixup arch_get_unmapped_area() implementation
  - Fixup defer cache flush for 610
  - Support kernel non-aligned access
  - Fixup 610 vipt cache flush mechanism
  - Fixup add zero_fp fixup perf backtrace panic
  - Move static keyword to the front of declaration
  - Fixup csky_pmu.max_period assignment
  - Use generic free_initrd_mem()
  - entry: Remove unneeded need_resched() loop
 
 CI-Tested: https://gitlab.com/c-sky/buildroot/pipelines/77689888
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Merge tag 'csky-for-linus-5.4-rc1' of git://github.com/c-sky/csky-linux

Pull csky updates from Guo Ren:
 "This round of csky subsystem just some fixups:

   - Fix mb() synchronization problem

   - Fix dma_alloc_coherent with PAGE_SO attribute

   - Fix cache_op failed when cross memory ZONEs

   - Optimize arch_sync_dma_for_cpu/device with dma_inv_range

   - Fix ioremap function losing

   - Fix arch_get_unmapped_area() implementation

   - Fix defer cache flush for 610

   - Support kernel non-aligned access

   - Fix 610 vipt cache flush mechanism

   - Fix add zero_fp fixup perf backtrace panic

   - Move static keyword to the front of declaration

   - Fix csky_pmu.max_period assignment

   - Use generic free_initrd_mem()

   - entry: Remove unneeded need_resched() loop"

* tag 'csky-for-linus-5.4-rc1' of git://github.com/c-sky/csky-linux:
  csky: Move static keyword to the front of declaration
  csky: entry: Remove unneeded need_resched() loop
  csky: Fixup csky_pmu.max_period assignment
  csky: Fixup add zero_fp fixup perf backtrace panic
  csky: Use generic free_initrd_mem()
  csky: Fixup 610 vipt cache flush mechanism
  csky: Support kernel non-aligned access
  csky: Fixup defer cache flush for 610
  csky: Fixup arch_get_unmapped_area() implementation
  csky: Fixup ioremap function losing
  csky: Optimize arch_sync_dma_for_cpu/device with dma_inv_range
  csky/dma: Fixup cache_op failed when cross memory ZONEs
  csky: Fixup dma_alloc_coherent with PAGE_SO attribute
  csky: Fixup mb() synchronization problem
2019-09-30 10:16:17 -07:00
Linus Torvalds cef0aa0ce8 ARM: SoC fixes
A few fixes that have trickled in through the merge window:
 
  - Video fixes for OMAP due to panel-dpi driver removal
  - Clock fixes for OMAP that broke no-idle quirks + nfsroot on DRA7
  - Fixing arch version on ASpeed ast2500
  - Two fixes for reset handling on ARM SCMI
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Merge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM SoC fixes from Olof Johansson:
 "A few fixes that have trickled in through the merge window:

   - Video fixes for OMAP due to panel-dpi driver removal

   - Clock fixes for OMAP that broke no-idle quirks + nfsroot on DRA7

   - Fixing arch version on ASpeed ast2500

   - Two fixes for reset handling on ARM SCMI"

* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
  ARM: aspeed: ast2500 is ARMv6K
  reset: reset-scmi: add missing handle initialisation
  firmware: arm_scmi: reset: fix reset_state assignment in scmi_domain_reset
  bus: ti-sysc: Remove unpaired sysc_clkdm_deny_idle()
  ARM: dts: logicpd-som-lv: Fix i2c2 and i2c3 Pin mux
  ARM: dts: am3517-evm: Fix missing video
  ARM: dts: logicpd-torpedo-baseboard: Fix missing video
  ARM: omap2plus_defconfig: Fix missing video
  bus: ti-sysc: Fix handling of invalid clocks
  bus: ti-sysc: Fix clock handling for no-idle quirks
2019-09-30 10:04:28 -07:00
Linus Torvalds cf4f493b10 A few more tracing fixes:
- Fixed a buffer overflow by checking nr_args correctly in probes
 
  - Fixed a warning that is reported by clang
 
  - Fixed a possible memory leak in error path of filter processing
 
  - Fixed the selftest that checks for failures, but wasn't failing
 
  - Minor clean up on call site output of a memory trace event
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Merge tag 'trace-v5.4-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

Pull tracing fixes from Steven Rostedt:
 "A few more tracing fixes:

   - Fix a buffer overflow by checking nr_args correctly in probes

   - Fix a warning that is reported by clang

   - Fix a possible memory leak in error path of filter processing

   - Fix the selftest that checks for failures, but wasn't failing

   - Minor clean up on call site output of a memory trace event"

* tag 'trace-v5.4-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
  selftests/ftrace: Fix same probe error test
  mm, tracing: Print symbol name for call_site in trace events
  tracing: Have error path in predicate_parse() free its allocated memory
  tracing: Fix clang -Wint-in-bool-context warnings in IF_ASSIGN macro
  tracing/probe: Fix to check the difference of nr_args before adding probe
2019-09-30 09:29:53 -07:00
Linus Torvalds c710364f78 MMC host:
- sdhci-pci: Add Genesys Logic GL975x support
  - sdhci-tegra: Recover loss in throughput for DMA
  - sdhci-of-esdhc: Fix DMA bug
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Merge tag 'mmc-v5.4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc

Pull more MMC updates from Ulf Hansson:
 "A couple more updates/fixes for MMC:

   - sdhci-pci: Add Genesys Logic GL975x support

   - sdhci-tegra: Recover loss in throughput for DMA

   - sdhci-of-esdhc: Fix DMA bug"

* tag 'mmc-v5.4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
  mmc: host: sdhci-pci: Add Genesys Logic GL975x support
  mmc: tegra: Implement ->set_dma_mask()
  mmc: sdhci: Let drivers define their DMA mask
  mmc: sdhci-of-esdhc: set DMA snooping based on DMA coherence
  mmc: sdhci: improve ADMA error reporting
2019-09-30 09:21:53 -07:00
Krzysztof Wilczynski 9af032a301 csky: Move static keyword to the front of declaration
Move the static keyword to the front of declaration of
csky_pmu_of_device_ids, and resolve the following compiler
warning that can be seen when building with warnings
enabled (W=1):

arch/csky/kernel/perf_event.c:1340:1: warning:
  ‘static’ is not at beginning of declaration [-Wold-style-declaration]

Signed-off-by: Krzysztof Wilczynski <kw@linux.com>
Signed-off-by: Guo Ren <guoren@kernel.org>
2019-09-30 11:50:49 +08:00
Valentin Schneider a2139d3b4f csky: entry: Remove unneeded need_resched() loop
Since the enabling and disabling of IRQs within preempt_schedule_irq()
is contained in a need_resched() loop, we don't need the outer arch
code loop.

Signed-off-by: Valentin Schneider <valentin.schneider@arm.com>
Signed-off-by: Guo Ren <guoren@kernel.org>
2019-09-30 11:49:47 +08:00
Linus Torvalds 97f9a3c4ee Documentation/process update for 5.4-rc1
Here are 2 small Documentation/process/embargoed-hardware-issues.rst
 file updates that missed my previous char/misc pull request for 5.4-rc1.
 
 The first one adds an Intel representative for the process, and the
 second one cleans up the text a bit more when it comes to how the
 disclosure rules work, as it was a bit confusing to some companies.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull Documentation/process update from Greg KH:
 "Here are two small Documentation/process/embargoed-hardware-issues.rst
  file updates that missed my previous char/misc pull request.

  The first one adds an Intel representative for the process, and the
  second one cleans up the text a bit more when it comes to how the
  disclosure rules work, as it was a bit confusing to some companies"

* tag 'char-misc-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
  Documentation/process: Clarify disclosure rules
  Documentation/process: Volunteer as the ambassador for Intel
2019-09-29 19:52:52 -07:00
Linus Torvalds 1eb80d6ffb Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull more vfs updates from Al Viro:
 "A couple of misc patches"

* 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  afs dynroot: switch to simple_dir_operations
  fs/handle.c - fix up kerneldoc
2019-09-29 19:42:07 -07:00
Linus Torvalds 7edee5229c 9 smb3 patches including an important patch for debugging traces with wireshark, and 3 patches for stable
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Merge tag '5.4-rc-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6

Pull more cifs updates from Steve French:
 "Fixes from the recent SMB3 Test events and Storage Developer
  Conference (held the last two weeks).

  Here are nine smb3 patches including an important patch for debugging
  traces with wireshark, with three patches marked for stable.

  Additional fixes from last week to better handle some newly discovered
  reparse points, and a fix the create/mkdir path for setting the mode
  more atomically (in SMB3 Create security descriptor context), and one
  for path name processing are still being tested so are not included
  here"

* tag '5.4-rc-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6:
  CIFS: Fix oplock handling for SMB 2.1+ protocols
  smb3: missing ACL related flags
  smb3: pass mode bits into create calls
  smb3: Add missing reparse tags
  CIFS: fix max ea value size
  fs/cifs/sess.c: Remove set but not used variable 'capabilities'
  fs/cifs/smb2pdu.c: Make SMB2_notify_init static
  smb3: fix leak in "open on server" perf counter
  smb3: allow decryption keys to be dumped by admin for debugging
2019-09-29 19:37:32 -07:00
Mao Han 3a09d8e289 csky: Fixup csky_pmu.max_period assignment
The csky_pmu.max_period has type u64, and BIT() can only return
32 bits unsigned long on C-SKY. The initialization for max_period
will be incorrect when count_width is bigger than 32.

Use BIT_ULL()

Signed-off-by: Mao Han <han_mao@c-sky.com>
Signed-off-by: Guo Ren <ren_guo@c-sky.com>
2019-09-30 10:26:33 +08:00
Guo Ren 48ede51fd9 csky: Fixup add zero_fp fixup perf backtrace panic
We need set fp zero to let backtrace know the end. The patch fixup perf
callchain panic problem, because backtrace didn't know what is the end
of fp.

Signed-off-by: Guo Ren <ren_guo@c-sky.com>
Reported-by: Mao Han <han_mao@c-sky.com>
2019-09-30 10:26:32 +08:00
Mike Rapoport fdbdcddc2c csky: Use generic free_initrd_mem()
The csky implementation of free_initrd_mem() is an open-coded version of
free_reserved_area() without poisoning.

Remove it and make csky use the generic version of free_initrd_mem().

Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Signed-off-by: Guo Ren <guoren@kernel.org>
2019-09-30 10:26:24 +08:00
Linus Torvalds 3f2dc2798b Merge branch 'entropy'
Merge active entropy generation updates.

This is admittedly partly "for discussion".  We need to have a way
forward for the boot time deadlocks where user space ends up waiting for
more entropy, but no entropy is forthcoming because the system is
entirely idle just waiting for something to happen.

While this was triggered by what is arguably a user space bug with
GDM/gnome-session asking for secure randomness during early boot, when
they didn't even need any such truly secure thing, the issue ends up
being that our "getrandom()" interface is prone to that kind of
confusion, because people don't think very hard about whether they want
to block for sufficient amounts of entropy.

The approach here-in is to decide to not just passively wait for entropy
to happen, but to start actively collecting it if it is missing.  This
is not necessarily always possible, but if the architecture has a CPU
cycle counter, there is a fair amount of noise in the exact timings of
reasonably complex loads.

We may end up tweaking the load and the entropy estimates, but this
should be at least a reasonable starting point.

As part of this, we also revert the revert of the ext4 IO pattern
improvement that ended up triggering the reported lack of external
entropy.

* getrandom() active entropy waiting:
  Revert "Revert "ext4: make __ext4_get_inode_loc plug""
  random: try to actively add entropy rather than passively wait for it
2019-09-29 19:25:39 -07:00
Linus Torvalds 02f03c4206 Revert "Revert "ext4: make __ext4_get_inode_loc plug""
This reverts commit 72dbcf7215.

Instead of waiting forever for entropy that may just not happen, we now
try to actively generate entropy when required, and are thus hopefully
avoiding the problem that caused the nice ext4 IO pattern fix to be
reverted.

So revert the revert.

Cc: Ahmed S. Darwish <darwish.07@gmail.com>
Cc: Ted Ts'o <tytso@mit.edu>
Cc: Willy Tarreau <w@1wt.eu>
Cc: Alexander E. Patrakov <patrakov@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-09-29 17:59:23 -07:00
Linus Torvalds 50ee7529ec random: try to actively add entropy rather than passively wait for it
For 5.3 we had to revert a nice ext4 IO pattern improvement, because it
caused a bootup regression due to lack of entropy at bootup together
with arguably broken user space that was asking for secure random
numbers when it really didn't need to.

See commit 72dbcf7215 (Revert "ext4: make __ext4_get_inode_loc plug").

This aims to solve the issue by actively generating entropy noise using
the CPU cycle counter when waiting for the random number generator to
initialize.  This only works when you have a high-frequency time stamp
counter available, but that's the case on all modern x86 CPU's, and on
most other modern CPU's too.

What we do is to generate jitter entropy from the CPU cycle counter
under a somewhat complex load: calling the scheduler while also
guaranteeing a certain amount of timing noise by also triggering a
timer.

I'm sure we can tweak this, and that people will want to look at other
alternatives, but there's been a number of papers written on jitter
entropy, and this should really be fairly conservative by crediting one
bit of entropy for every timer-induced jump in the cycle counter.  Not
because the timer itself would be all that unpredictable, but because
the interaction between the timer and the loop is going to be.

Even if (and perhaps particularly if) the timer actually happens on
another CPU, the cacheline interaction between the loop that reads the
cycle counter and the timer itself firing is going to add perturbations
to the cycle counter values that get mixed into the entropy pool.

As Thomas pointed out, with a modern out-of-order CPU, even quite simple
loops show a fair amount of hard-to-predict timing variability even in
the absense of external interrupts.  But this tries to take that further
by actually having a fairly complex interaction.

This is not going to solve the entropy issue for architectures that have
no CPU cycle counter, but it's not clear how (and if) that is solvable,
and the hardware in question is largely starting to be irrelevant.  And
by doing this we can at least avoid some of the even more contentious
approaches (like making the entropy waiting time out in order to avoid
the possibly unbounded waiting).

Cc: Ahmed Darwish <darwish.07@gmail.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Theodore Ts'o <tytso@mit.edu>
Cc: Nicholas Mc Guire <hofrat@opentech.at>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Kees Cook <keescook@chromium.org>
Cc: Willy Tarreau <w@1wt.eu>
Cc: Alexander E. Patrakov <patrakov@gmail.com>
Cc: Lennart Poettering <mzxreary@0pointer.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-09-29 17:38:52 -07:00
Olof Johansson 9bfd7319e8 Merge tag 'fixes-5.4-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into arm/fixes
Fixes for omap variants

Few fixes for ti-sysc interconnect target module driver for no-idle
quirks that caused nfsroot to fail on some dra7 boards.

And let's fixes to get LCD working again for logicpd board that got
broken a while back with removal of panel-dpi driver. We need to now
use generic CONFIG_DRM_PANEL_SIMPLE instead.

* tag 'fixes-5.4-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  bus: ti-sysc: Remove unpaired sysc_clkdm_deny_idle()
  ARM: dts: logicpd-som-lv: Fix i2c2 and i2c3 Pin mux
  ARM: dts: am3517-evm: Fix missing video
  ARM: dts: logicpd-torpedo-baseboard: Fix missing video
  ARM: omap2plus_defconfig: Fix missing video
  bus: ti-sysc: Fix handling of invalid clocks
  bus: ti-sysc: Fix clock handling for no-idle quirks

Link: https://lore.kernel.org/r/pull-1568819401-72461@atomide.com
Signed-off-by: Olof Johansson <olof@lixom.net>
2019-09-29 11:20:48 -07:00
Olof Johansson a4207a1c5e ARM SCMI fixes for v5.4
Couple of fixes: one in scmi reset driver initialising missed scmi handle
 and an other in scmi reset API implementation fixing the assignment of
 reset state
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Merge tag 'scmi-fixes-5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux into arm/fixes

ARM SCMI fixes for v5.4

Couple of fixes: one in scmi reset driver initialising missed scmi handle
and an other in scmi reset API implementation fixing the assignment of
reset state

* tag 'scmi-fixes-5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux:
  reset: reset-scmi: add missing handle initialisation
  firmware: arm_scmi: reset: fix reset_state assignment in scmi_domain_reset

Link: https://lore.kernel.org/r/20190918142139.GA4370@bogus
Signed-off-by: Olof Johansson <olof@lixom.net>
2019-09-29 11:20:41 -07:00
Linus Torvalds a3c0e7b1fe libnvdimm fixes v5.4-rc1
- Complete the reworks to interoperate with powerpc dynamic huge page sizes
 
 - Fix a crash due to missed accounting for the powerpc 'struct
   page'-memmap mapping granularity.
 
 - Fix badblock initialization for volatile (DRAM emulated) pmem ranges.
 
 - Stop triggering request_key() notifications to userspace when
   NVDIMM-security is disabled / not present.
 
 - Miscellaneous small fixups.
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Merge tag 'libnvdimm-fixes-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm

More libnvdimm updates from Dan Williams:

 - Complete the reworks to interoperate with powerpc dynamic huge page
   sizes

 - Fix a crash due to missed accounting for the powerpc 'struct
   page'-memmap mapping granularity

 - Fix badblock initialization for volatile (DRAM emulated) pmem ranges

 - Stop triggering request_key() notifications to userspace when
   NVDIMM-security is disabled / not present

 - Miscellaneous small fixups

* tag 'libnvdimm-fixes-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
  libnvdimm/region: Enable MAP_SYNC for volatile regions
  libnvdimm: prevent nvdimm from requesting key when security is disabled
  libnvdimm/region: Initialize bad block for volatile namespaces
  libnvdimm/nfit_test: Fix acpi_handle redefinition
  libnvdimm/altmap: Track namespace boundaries in altmap
  libnvdimm: Fix endian conversion issues 
  libnvdimm/dax: Pick the right alignment default when creating dax devices
  powerpc/book3s64: Export has_transparent_hugepage() related functions.
2019-09-29 10:33:41 -07:00
Linus Torvalds 939ca9f175 Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal
Pull thermal SoC updates from Eduardo Valentin:
 "This is a really small pull in the midst of a lot of pending patches.

  We are in the middle of restructuring how we are maintaining the
  thermal subsystem, as per discussion in our last LPC. For now, I am
  sending just some changes that were pending in my tree. Looking
  forward to get a more streamlined process in the next merge window"

* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal:
  thermal: db8500: Rewrite to be a pure OF sensor
  thermal: db8500: Use dev helper variable
  thermal: db8500: Finalize device tree conversion
  thermal: thermal_mmio: remove some dead code
2019-09-29 10:24:23 -07:00