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  1. 30 5月, 2017 1 次提交
    • L
      ACPICA: Tables: Fix regression introduced by a too early mechanism enabling · 2ea65321
      由 Lv Zheng 提交于 
      In the Linux kernel, acpi_get_table() "clones" haven't been fully
balanced by acpi_put_table() invocations.  In upstream ACPICA, due to
the design change, there are also unbalanced acpi_get_table_by_index()
invocations requiring special care.

acpi_get_table() reference counting mismatches may occor due to that
and printing error messages related to them is not useful at this
point.  The strict balanced validation count check should only be
enabled after confirming that all invocations are safe and aligned
with their designed purposes.

Thus this patch removes the error value returned by acpi_tb_get_table()
in that case along with the accompanying error message to fix the
issue.

Fixes: 174cc718 (ACPICA: Tables: Back port acpi_get_table_with_size() and early_acpi_os_unmap_memory() from Linux kernel)
Cc: 4.10+ <stable@vger.kernel.org> # 4.10+
Reported-by: NAnush Seetharaman <anush.seetharaman@intel.com>
Reported-by: NDan Williams <dan.j.williams@intel.com>
Signed-off-by: NLv Zheng <lv.zheng@intel.com>
[ rjw: Changelog ]
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>
      2ea65321
  3. 29 4月, 2017 1 次提交
  5. 27 4月, 2017 11 次提交
  7. 14 4月, 2017 1 次提交
  9. 12 4月, 2017 1 次提交
    • L
      ACPICA: Add non-linux host build support · 6895baa6
      由 Lv Zheng 提交于 
      _LINUX: used to detect a target build is a linux kernel/application.
__linux__: used to detect a build is on a linux hosts.

Thus we can see: if a linux kernel build is performed on environments other
than linux hosts, __linux__ may not be defined by the compiler and _LINUX
cannot cover linux kernel resident ACPICA files, as it's only defined in
<linux/acpi.h> and hence only allows non ACPICA kernel files to correctly
include aclinux.h.
As a conclusion, we don't actually support such build.

This patch adds -D_LINUX for ACPICA files so that kernel builds on any
hosts can use unified _LINUX as a linux kernel target indication to
correctly include aclinux.h.
Tested-by: NAl Stone <ahs3@redhat.com>
Signed-off-by: NLv Zheng <lv.zheng@intel.com>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>
      6895baa6
  11. 01 4月, 2017 1 次提交
    • R
      ACPI / scan: Prefer devices without _HID for _ADR matching · fdad4e7a
      由 Rafael J. Wysocki 提交于 
      Commit c2a6bbaf (ACPI / scan: Prefer devices without _HID/_CID
for _ADR matching) added a list_empty(&adev->pnp.ids) check to
find_child_checks() so as to catch situations in which the ACPI
core attempts to decode _ADR for a device having a _HID too which
is strictly against the spec.  However, it overlooked the fact that
the adev->pnp.ids list for the devices taken into account by
find_child_checks() may contain device IDs set internally by the
kernel, like "LNXVIDEO" (thanks to Zhang Rui for that realization),
and it broke the enumeration of those devices as a result.

To unbreak it, replace the overly coarse grained list_empty()
check with a much more precise check against the pnp.type.platform_id
flag which is only set for devices having a _HID (that's how it
should be done from the start, as having both _ADR and _CID is
actually permitted).

Fixes: c2a6bbaf (ACPI / scan: Prefer devices without _HID/_CID for _ADR matching)
Link: https://bugzilla.kernel.org/show_bug.cgi?id=194889Reported-and-tested-by: NMike <mike@mikewilson.me.uk>
Tested-by: NHans de Goede <hdegoede@redhat.com>
Cc: 4.10+ <stable@vger.kernel.org> # 4.10+
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>
      fdad4e7a
  13. 29 3月, 2017 4 次提交
  15. 14 3月, 2017 1 次提交
  17. 11 3月, 2017 4 次提交
  19. 02 3月, 2017 2 次提交
  21. 01 3月, 2017 2 次提交
    • R
      x86/ioapic: Split IOAPIC hot-removal into two steps · f2ae5da7
      由 Rui Wang 提交于 
      The hot removal of IOAPIC is handling PCI and ACPI removal in one go. That
only works when the PCI drivers released the interrupt resources, but
breaks when a IOAPIC interrupt is still associated to a PCI device.

The new pcibios_release_device() callback allows to solve that problem by
splitting the removal into two steps:

1) PCI removal:

   Release all PCI resources including eventually not yet released IOAPIC
   interrupts via the new pcibios_release_device() callback.

2) ACPI removal:

   After release of all PCI resources the ACPI resources can be released
   without issue.

[ tglx: Rewrote changelog ]
Signed-off-by: NRui Wang <rui.y.wang@intel.com>
Cc: tony.luck@intel.com
Cc: linux-pci@vger.kernel.org
Cc: rjw@rjwysocki.net
Cc: linux-acpi@vger.kernel.org
Cc: fengguang.wu@intel.com
Cc: helgaas@kernel.org
Cc: kbuild-all@01.org
Cc: bhelgaas@google.com
Link: http://lkml.kernel.org/r/1488288869-31290-3-git-send-email-rui.y.wang@intel.comSigned-off-by: NThomas Gleixner <tglx@linutronix.de>
      f2ae5da7
    • D
      nfit, libnvdimm: fix interleave set cookie calculation · 86ef58a4
      由 Dan Williams 提交于 
      The interleave-set cookie is a sum that sanity checks the composition of
an interleave set has not changed from when the namespace was initially
created.  The checksum is calculated by sorting the DIMMs by their
location in the interleave-set. The comparison for the sort must be
64-bit wide, not byte-by-byte as performed by memcmp() in the broken
case.

Fix the implementation to accept correct cookie values in addition to
the Linux "memcmp" order cookies, but only allow correct cookies to be
generated going forward. It does mean that namespaces created by
third-party-tooling, or created by newer kernels with this fix, will not
validate on older kernels. However, there are a couple mitigating
conditions:

    1/ platforms with namespace-label capable NVDIMMs are not widely
       available.

    2/ interleave-sets with a single-dimm are by definition not affected
       (nothing to sort). This covers the QEMU-KVM NVDIMM emulation case.

The cookie stored in the namespace label will be fixed by any write the
namespace label, the most straightforward way to achieve this is to
write to the "alt_name" attribute of a namespace in sysfs.

Cc: <stable@vger.kernel.org>
Fixes: eaf96153 ("libnvdimm, nfit: add interleave-set state-tracking infrastructure")
Reported-by: NNicholas Moulin <nicholas.w.moulin@linux.intel.com>
Tested-by: NNicholas Moulin <nicholas.w.moulin@linux.intel.com>
Signed-off-by: NDan Williams <dan.j.williams@intel.com>
      86ef58a4
  23. 28 2月, 2017 4 次提交
  25. 16 2月, 2017 1 次提交
  27. 10 2月, 2017 2 次提交
  29. 09 2月, 2017 3 次提交
  31. 07 2月, 2017 1 次提交