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linux/drivers/acpi
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Ross Zwisler 68202c9f0a libnvdimm, nd_blk: mask off reserved status bits 
The "NVDIMM Block Window Driver Writer's Guide":

    http://pmem.io/documents/NVDIMM_DriverWritersGuide-July-2016.pdf

...defines the layout of the block window status register.  For the July
2016 version of the spec linked to above, this happens in Figure 4 on
page 26.

The only bits defined in this spec are bits 31, 5, 4, 2, 1 and 0.  The
rest of the bits in the status register are reserved, and there is a
warning following the diagram that says:

    Note: The driver cannot assume the value of the RESERVED bits in the
    status register are zero. These reserved bits need to be masked off, and
    the driver must avoid checking the state of those bits.

This change ensures that for hardware implementations that set these
reserved bits in the status register, the driver won't incorrectly fail the
block I/Os.

Cc: <stable@vger.kernel.org> #v4.2+
Reviewed-by: Lee, Chun-Yi <jlee@suse.com>
Signed-off-by: Ross Zwisler <ross.zwisler@linux.intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2016-08-08 09:26:13 -07:00
..
acpica Revert "ACPICA: Namespace: Fix deadlock triggered by MLC support in dynamic table loading" 2016-07-11 16:18:18 +02:00
apei pstore subsystem updates for v4.8 2016-07-26 18:48:23 -07:00
dptf ACPI / DPTF: move int340x_thermal.c to the DPTF folder 2016-07-21 13:42:46 +02:00
nfit libnvdimm, nd_blk: mask off reserved status bits 2016-08-08 09:26:13 -07:00
pmic ACPI / PMIC: remove modular references from non-modular code 2016-07-16 03:03:14 +02:00
ac.c ACPI: Remove FSF mailing addresses 2015-07-08 02:27:32 +02:00
acpi_amba.c ACPI / amba: Remove CLK_IS_ROOT 2016-04-27 23:42:57 +02:00
acpi_apd.c ACPI / APD: Remove CLK_IS_ROOT 2016-04-27 23:42:57 +02:00
acpi_cmos_rtc.c char/genrtc: x86: remove remnants of asm/rtc.h 2016-06-04 00:20:07 +02:00
acpi_configfs.c ACPI: Rename configfs.c to acpi_configfs.c to prevent link error 2016-07-11 15:13:36 +02:00
acpi_dbg.c ACPI / debugger: Fix regression introduced by IS_ERR_VALUE() removal 2016-07-05 23:02:34 +02:00
acpi_extlog.c
acpi_ipmi.c ACPI: Remove FSF mailing addresses 2015-07-08 02:27:32 +02:00
acpi_lpat.c ACPI / lpat: make it explicitly non-modular 2016-07-16 03:08:10 +02:00
acpi_lpss.c x86/acpi/lss: Use Intel family name macros for the acpi_lpss driver 2016-06-08 13:03:26 +02:00
acpi_memhotplug.c ACPI: Remove FSF mailing addresses 2015-07-08 02:27:32 +02:00
acpi_pad.c ACPI / PAD: power_saving_thread() is not freezable 2015-10-26 04:42:54 +01:00
acpi_platform.c Power management and ACPI material for v4.6-rc1, part 1 2016-03-16 14:10:53 -07:00
acpi_pnp.c ACPI / PNP: constify device IDs 2016-01-04 22:10:30 +01:00
acpi_processor.c ACPI / processor: Avoid reserving IO regions too early 2016-06-02 01:57:50 +02:00
acpi_video.c ACPI / video: skip evaluating _DOD when it does not exist 2016-06-22 02:00:04 +02:00
battery.c ACPI / battery: Correctly serialise with the pending async probe 2016-05-21 01:25:07 +02:00
battery.h
bgrt.c drivers/acpi: make bgrt driver explicitly non-modular 2016-03-09 23:46:07 +01:00
blacklist.c ACPI / osi: Collect _OSI handling into one single file 2016-05-05 00:13:53 +02:00
bus.c Merge branches 'acpi-processor', 'acpi-cppc', 'acpi-apei' and 'acpi-sleep' 2016-07-25 13:42:25 +02:00
button.c ACPI / button: remove pointer to old lid_sysfs on unbind 2016-08-03 01:27:20 +02:00
cm_sbs.c ACPI: Remove FSF mailing addresses 2015-07-08 02:27:32 +02:00
container.c ACPI: Remove FSF mailing addresses 2015-07-08 02:27:32 +02:00
cppc_acpi.c ACPI / CPPC: Prevent cpc_desc_ptr points to the invalid data 2016-06-25 02:53:31 +02:00
custom_method.c
debugfs.c ACPI: fix acpi_debugfs_init prototype 2015-08-07 02:55:18 +02:00
device_pm.c ACPI / PM: Export acpi_device_fix_up_power() 2016-05-20 15:54:01 +02:00
device_sysfs.c ACPI / device_sysfs: Clean up checkpatch errors 2016-05-04 23:47:32 +02:00
dock.c ACPI / dock: make dock explicitly non-modular 2016-07-16 03:08:08 +02:00
ec_sys.c ACPI / EC: Deny write access unless requested by module param 2016-03-09 23:26:15 +01:00
ec.c Merge branches 'acpi-ec' and 'acpi-button' 2016-08-05 16:04:49 +02:00
event.c netlink: make nlmsg_end() and genlmsg_end() void 2015-01-18 01:03:45 -05:00
evged.c ACPI / GED: make evged.c explicitly non-modular 2016-05-09 22:59:25 +02:00
fan.c ACPI / fan: Make struct dev_pm_ops const 2016-03-09 23:23:21 +01:00
glue.c Merge branch 'acpi-pci' 2015-11-07 01:30:10 +01:00
gsi.c ACPI: Rename acpi_gsi_get_irq_type to acpi_dev_get_irq_type and export symbol 2016-01-01 03:20:25 +01:00
hed.c ACPI: Remove FSF mailing addresses 2015-07-08 02:27:32 +02:00
internal.h ACPI: add support for ACPI reconfiguration notifiers 2016-07-08 21:52:35 +02:00
ioapic.c x86/irq, ACPI: Implement ACPI driver to support IOAPIC hotplug 2015-02-05 15:09:26 +01:00
Kconfig PCI changes for the v4.8 merge window: 2016-08-02 17:12:29 -04:00
Makefile PCI changes for the v4.8 merge window: 2016-08-02 17:12:29 -04:00
numa.c ACPI / NUMA: Enable ACPI based NUMA on ARM64 2016-06-22 01:36:59 +02:00
nvs.c
osi.c ACPI / osi: Collect _OSI handling into one single file 2016-05-05 00:13:53 +02:00
osl.c treewide: replace obsolete _refok by __ref 2016-08-02 17:31:41 -04:00
pci_irq.c x86/ACPI/PCI: Recognize that Interrupt Line 255 means "not connected" 2016-03-09 01:23:35 +01:00
pci_link.c ACPI,PCI,IRQ: separate ISA penalty calculation 2016-07-02 01:38:34 +02:00
pci_mcfg.c PCI/ACPI: Add generic MCFG table handling 2016-06-10 18:27:59 -05:00
pci_root.c PCI/ACPI: Support I/O resources when parsing host bridge resources 2016-06-10 16:00:48 -05:00
pci_slot.c ACPI / PCI: make pci_slot explicitly non-modular 2016-07-16 03:05:29 +02:00
power.c Merge branch 'acpi-pm' 2015-09-01 03:38:43 +02:00
proc.c ACPI: change acpi_sleep_proc_init() to return void 2015-09-15 03:03:15 +02:00
processor_core.c ACPI / processor: Add acpi_map_madt_entry() 2016-05-30 14:27:09 +02:00
processor_driver.c Merge branch 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2016-07-29 13:55:30 -07:00
processor_idle.c ACPI / processor_idle: Add support for Low Power Idle(LPI) states 2016-07-21 23:25:58 +02:00
processor_pdc.c ACPI / processor: Introduce invalid_logical_cpuid() 2015-05-13 23:28:14 +02:00
processor_perflib.c Merge branch 'pm-cpufreq' 2015-09-01 15:52:35 +02:00
processor_thermal.c ACPI: Remove FSF mailing addresses 2015-07-08 02:27:32 +02:00
processor_throttling.c ACPI / processor: Avoid reserving IO regions too early 2016-06-02 01:57:50 +02:00
property.c ACPI / property: fix data node parsing in acpi_get_next_subnode() 2016-03-17 03:06:38 +01:00
reboot.c
resource.c PCI: ACPI: IA64: fix IO port generic range check 2016-03-22 23:07:49 +01:00
sbs.c ACPI / SBS: fix inconsistent indenting inside if statement 2016-01-04 22:14:27 +01:00
sbshc.c Revert "ACPI / SBS: Add 5 us delay to fix SBS hangs on MacBook" 2015-11-16 23:26:45 +01:00
sbshc.h
scan.c xen: features and fixes for 4.8-rc0 2016-07-27 11:35:37 -07:00
sleep.c ACPI: Execute _PTS before system reboot 2016-06-29 23:44:02 +02:00
sleep.h ACPICA: Drop Linux-specific waking vector functions 2016-01-04 22:05:20 +01:00
sysfs.c ACPI: add support for ACPI reconfiguration notifiers 2016-07-08 21:52:35 +02:00
tables.c ACPI / tables: move arch-specific symbol to asm/acpi.h 2016-06-22 01:16:14 +02:00
thermal.c ACPI / thermal: Remove create_workqueue() 2016-06-22 02:12:56 +02:00
utils.c nfit: make DIMM DSMs optional 2016-07-19 12:32:39 -07:00
video_detect.c ACPI / video: Thinkpad X201 Tablet needs video_detect_force_video 2016-06-22 01:59:03 +02:00
wakeup.c