Commit Graph

932729 Commits

Author SHA1 Message Date
Bjorn Helgaas
d697552f52 Merge branch 'pci/msi'
- Forward MSI-X error code in pci_alloc_irq_vectors_affinity() (Piotr
  Stankiewicz)

* pci/msi:
  PCI/MSI: Forward MSI-X error code in pci_alloc_irq_vectors_affinity()
2020-08-05 18:24:16 -05:00
Bjorn Helgaas
0caa17f5f2 Merge branch 'pci/misc'
- Convert PCIe capability PCIBIOS errors to errno (Bolarinwa Olayemi
  Saheed)

- Align PCIe capability and PCI accessor return values (Bolarinwa Olayemi
  Saheed)

- Replace http:// links with https:// (Alexander A. Klimov)

- Replace lkml.org, spinics, gmane with lore.kernel.org (Bjorn Helgaas)

- Update panic message to mention kzalloc(), not kmalloc() (Liao Pingfang)

- Move PCI_VENDOR_ID_REDHAT definition to pci_ids.h (Huacai Chen)

- Remove unused pci_lost_interrupt() (Heiner Kallweit)

* pci/misc:
  PCI: Remove unused pci_lost_interrupt()
  PCI: Move PCI_VENDOR_ID_REDHAT definition to pci_ids.h
  PCI: Fix error in panic message
  PCI: Replace lkml.org, spinics, gmane with lore.kernel.org
  PCI: Replace http:// links with https://
  PCI: Align PCIe capability and PCI accessor return values
  PCI: Convert PCIe capability PCIBIOS errors to errno
2020-08-05 18:24:16 -05:00
Bjorn Helgaas
e8c4a76524 Merge branch 'pci/hotplug'
- Fix pci_create_slot() reference count leak in failure path (Qiushi Wu)

- Make rpadlpar functions static (Wei Yongjun)

* pci/hotplug:
  PCI: rpadlpar: Make functions static
  PCI: Fix pci_create_slot() reference count leak
2020-08-05 18:24:15 -05:00
Bjorn Helgaas
b0735e8d2c Merge branch 'pci/error'
- Use pci_channel_state_t instead of enum pci_channel_state (Luc Van
  Oostenryck)

- Simplify __aer_print_error() (Bjorn Helgaas)

- Log AER correctable errors as warning, not error (Matt Jolly)

- Rename pci_aer_clear_device_status() to pcie_clear_device_status() (Bjorn
  Helgaas)

- Clear PCIe Device Status errors only if OS owns AER (Jonathan Cameron)

* pci/error:
  PCI/ERR: Clear PCIe Device Status errors only if OS owns AER
  PCI/ERR: Rename pci_aer_clear_device_status() to pcie_clear_device_status()
  PCI/AER: Log correctable errors as warning, not error
  PCI/AER: Simplify __aer_print_error()
  PCI: Use 'pci_channel_state_t' instead of 'enum pci_channel_state'
2020-08-05 18:24:15 -05:00
Bjorn Helgaas
3f906da760 Merge branch 'pci/enumeration'
- Fix pci_cfg_wait queue locking problem (Xiang Zheng, Bjorn Helgaas)

- Keep device in system even if driver attach fails (Rajat Jain)

- Cache ACS capability offset in device (Rajat Jain)

- Treat "external-facing" devices themselves as internal, not external
  (Rajat Jain)

- Announce device after early fixups (Tiezhu Yang)

* pci/enumeration:
  PCI: Announce device after early fixups
  PCI: Treat "external-facing" devices themselves as internal
  PCI: Cache ACS capability offset in device
  PCI: Reorder pci_enable_acs() and dependencies
  PCI: Add device even if driver attach failed
  PCI: Fix pci_cfg_wait queue locking problem
2020-08-05 18:24:15 -05:00
Bjorn Helgaas
0dfcabe9c6 Merge branch 'pci/aspm'
- Add newline to ASPM sysfs "policy" file (Xiongfeng Wang)

* pci/aspm:
  PCI/ASPM: Add missing newline in sysfs 'policy'
2020-08-05 18:24:14 -05:00
Wei Yongjun
2e4770a566 PCI: rpadlpar: Make functions static
The sparse tool report build warnings as follows:

  drivers/pci/hotplug/rpadlpar_core.c:355:5: warning: symbol 'dlpar_remove_pci_slot' was not declared. Should it be static?
  drivers/pci/hotplug/rpadlpar_core.c:461:12: warning: symbol 'rpadlpar_io_init' was not declared. Should it be static?
  drivers/pci/hotplug/rpadlpar_core.c:473:6: warning: symbol 'rpadlpar_io_exit' was not declared. Should it be static?

Those functions are not used outside of this file, so mark them static.

Also mark rpadlpar_io_exit() as __exit.

Link: https://lore.kernel.org/r/20200721151735.41181-1-weiyongjun1@huawei.com
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2020-07-30 11:11:13 -05:00
Tiezhu Yang
b7360f609f PCI: Announce device after early fixups
Announce the device, e.g.,

  pci 0000:00:00.0: [8086:5910] type 00 class 0x060000

after running early fixups, so the log message reflects any device type or
class code fixups.

[bhelgaas: commit log]
Link: https://lore.kernel.org/r/1595833615-8049-1-git-send-email-yangtiezhu@loongson.cn
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2020-07-29 17:49:33 -05:00
Heiner Kallweit
2167c40657 PCI: Remove unused pci_lost_interrupt()
388c8c16ab ("PCI: add routines for debugging and handling lost
interrupts") added pci_lost_interrupt() that apparently never has had a
single user.  Remove it.

Link: https://lore.kernel.org/r/e328d059-3068-6a40-28df-f81f616d15a0@gmail.com
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2020-07-29 14:25:18 -05:00
Jonathan Cameron
068c29a248 PCI/ERR: Clear PCIe Device Status errors only if OS owns AER
pcie_clear_device_status() resets the error bits in the PCIe Device Status
Register (PCI_EXP_DEVSTA).

Previously we did this unconditionally, but on ACPI systems, the _OSC AER
bit negotiates control of the AER capability.  Per sec 4.5.1 of the System
Firmware Intermediary _OSC and DPC Updates ECN [1], this bit also covers
other error enable/status bits including the following:

  Correctable Error Reporting Enable
  Non-Fatal Error Reporting Enable
  Fatal Error Reporting Enable
  Unsupported Request Reporting Enable

These bits are all in the PCIe Device Control register (the ECN omitted
"Reporting", but I think that's a typo), so by implication the _OSC AER bit
also applies to the error status bits in the PCIe Device Status register:

  Correctable Error Detected
  Non-Fatal Error Detected
  Fatal Error Detected
  Unsupported Request Detected

Clear the PCIe Device Status error bits only when the OS controls the AER
capability and related error enable/status bits.  If platform firmware
controls the AER capability, firmware is responsible for clearing these
bits.

One call path leading here is:

  ghes_do_proc
    ghes_handle_aer
      aer_recover_queue
        schedule_work(&aer_recover_work)
  ...
  aer_recover_work_func
    pcie_do_recovery
      pcie_clear_device_status

[1] System Firmware Intermediary (SFI) _OSC and DPC Updates ECN, Feb 24,
    2020, affecting PCI Firmware Specification, Rev. 3.2
    https://members.pcisig.com/wg/PCI-SIG/document/14076
[bhelgaas: commit log, move test from pcie_clear_device_status() to callers]
Link: https://lore.kernel.org/r/20200622113523.891666-1-Jonathan.Cameron@huawei.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2020-07-22 15:41:03 -05:00
Bjorn Helgaas
600a5b4fc8 PCI/ERR: Rename pci_aer_clear_device_status() to pcie_clear_device_status()
pci_aer_clear_device_status() clears the error bits in the PCIe Device
Status Register (PCI_EXP_DEVSTA).  Every PCIe device has this register,
regardless of whether it supports AER.

Rename pci_aer_clear_device_status() to pcie_clear_device_status() to make
clear that it is PCIe-specific but not AER-specific.  Move it to
drivers/pci/pci.c, again since it's not AER-specific.  No functional change
intended.

Link: https://lore.kernel.org/r/20200717195619.766662-1-helgaas@kernel.org
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2020-07-22 15:38:35 -05:00
Xiongfeng Wang
3167e3d340 PCI/ASPM: Add missing newline in sysfs 'policy'
When I cat ASPM parameter 'policy' by sysfs, it displays as follows.  Add a
newline for easy reading.  Other sysfs attributes already include a
newline.

  [root@localhost ~]# cat /sys/module/pcie_aspm/parameters/policy
  [default] performance powersave powersupersave [root@localhost ~]#

Fixes: 7d715a6c1a ("PCI: add PCI Express ASPM support")
Link: https://lore.kernel.org/r/1594972765-10404-1-git-send-email-wangxiongfeng2@huawei.com
Signed-off-by: Xiongfeng Wang <wangxiongfeng2@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2020-07-17 16:01:24 -05:00
Qiushi Wu
8a94644b44 PCI: Fix pci_create_slot() reference count leak
kobject_init_and_add() takes a reference even when it fails.  If it returns
an error, kobject_put() must be called to clean up the memory associated
with the object.

When kobject_init_and_add() fails, call kobject_put() instead of kfree().

b8eb718348 ("net-sysfs: Fix reference count leak in
rx|netdev_queue_add_kobject") fixed a similar problem.

Link: https://lore.kernel.org/r/20200528021322.1984-1-wu000273@umn.edu
Signed-off-by: Qiushi Wu <wu000273@umn.edu>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2020-07-10 15:48:22 -05:00
Rajat Jain
99b50be9d8 PCI: Treat "external-facing" devices themselves as internal
"External-facing" devices are internal devices that expose PCIe hierarchies
such as Thunderbolt outside the platform [1].  Previously these internal
devices were marked as "untrusted" the same as devices downstream from
them.

Use the ACPI or DT information to identify external-facing devices, but
only mark the devices *downstream* from them as "untrusted" [2].  The
external-facing device itself is no longer marked as untrusted.

[1] https://docs.microsoft.com/en-us/windows-hardware/drivers/pci/dsd-for-pcie-root-ports#identifying-externally-exposed-pcie-root-ports
[2] https://lore.kernel.org/linux-pci/20200610230906.GA1528594@bjorn-Precision-5520/
Link: https://lore.kernel.org/r/20200707224604.3737893-3-rajatja@google.com
Signed-off-by: Rajat Jain <rajatja@google.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2020-07-10 14:03:13 -05:00
Rajat Jain
52fbf5bdee PCI: Cache ACS capability offset in device
Currently the ACS capability is being looked up at a number of places. Read
and store it once at enumeration so that it can be used by all later.  No
functional change intended.

Link: https://lore.kernel.org/r/20200707224604.3737893-2-rajatja@google.com
Signed-off-by: Rajat Jain <rajatja@google.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2020-07-10 13:49:35 -05:00
Rajat Jain
cbe420361f PCI: Reorder pci_enable_acs() and dependencies
Move pci_enable_acs() and dependencies further up in the source code to
avoid having to forward declare it when we make it static in near future.

No functional changes intended.

Link: https://lore.kernel.org/r/20200707224604.3737893-1-rajatja@google.com
Signed-off-by: Rajat Jain <rajatja@google.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2020-07-10 13:47:11 -05:00
Huacai Chen
2575b2f3ee PCI: Move PCI_VENDOR_ID_REDHAT definition to pci_ids.h
Instead of duplicating the PCI_VENDOR_ID_REDHAT definition everywhere, move
it to include/linux/pci_ids.h.

[bhelgaas: also update MDPY_PCI_VENDOR_ID]
Link: https://lore.kernel.org/r/1594195170-11119-1-git-send-email-chenhc@lemote.com
Signed-off-by: Huacai Chen <chenhc@lemote.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
2020-07-09 17:00:47 -05:00
Liao Pingfang
c7c337c5ed PCI: Fix error in panic message
Use kzalloc() instead of kmalloc() in the panic message.

[bhelgaas: drop similar ibmphp_pci.c change since it's not obviously
correct]
Link: https://lore.kernel.org/r/1594279708-34369-1-git-send-email-wang.yi59@zte.com.cn
Signed-off-by: Liao Pingfang <liao.pingfang@zte.com.cn>
Signed-off-by: Yi Wang <wang.yi59@zte.com.cn>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2020-07-09 16:01:09 -05:00
Matt Jolly
e83e2ca3c3 PCI/AER: Log correctable errors as warning, not error
PCIe correctable errors are recovered by hardware with no need for software
intervention (PCIe r5.0, sec 6.2.2.1).

Reduce the log level of correctable errors from KERN_ERR to KERN_WARNING.

The bug reports below are for correctable error logging.  This doesn't fix
the cause of those reports, but it may make the messages less alarming.

[bhelgaas: commit log, use pci_printk() to avoid code duplication]
Link: https://bugzilla.kernel.org/show_bug.cgi?id=201517
Link: https://bugzilla.kernel.org/show_bug.cgi?id=196183
Link: https://lore.kernel.org/r/20200618155511.16009-1-Kangie@footclan.ninja
Signed-off-by: Matt Jolly <Kangie@footclan.ninja>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2020-07-07 19:00:04 -05:00
Bjorn Helgaas
0678e3109a PCI/AER: Simplify __aer_print_error()
aer_correctable_error_string[] and aer_uncorrectable_error_string[] have
descriptions of AER error status bits.  Add NULL entries to these tables so
all entries for bits 0-31 are defined.  Then we don't have to check for
ARRAY_SIZE() when decoding a status word, which simplifies
__aer_print_error().

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2020-07-07 18:49:10 -05:00
Rajat Jain
2194bc7c39 PCI: Add device even if driver attach failed
device_attach() returning failure indicates a driver error while trying to
probe the device. In such a scenario, the PCI device should still be added
in the system and be visible to the user.

When device_attach() fails, merely warn about it and keep the PCI device in
the system.

This partially reverts ab1a187bba ("PCI: Check device_attach() return
value always").

Link: https://lore.kernel.org/r/20200706233240.3245512-1-rajatja@google.com
Signed-off-by: Rajat Jain <rajatja@google.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: stable@vger.kernel.org	# v4.6+
2020-07-07 17:33:41 -05:00
Luc Van Oostenryck
16d79cd4e2 PCI: Use 'pci_channel_state_t' instead of 'enum pci_channel_state'
The method struct pci_error_handlers.error_detected() is defined and
documented as taking an 'enum pci_channel_state' for the second argument,
but most drivers use 'pci_channel_state_t' instead.

This 'pci_channel_state_t' is not a typedef for the enum but a typedef for
a bitwise type in order to have better/stricter typechecking.

Consolidate everything by using 'pci_channel_state_t' in the method's
definition, in the related helpers and in the drivers.

Enforce use of 'pci_channel_state_t' by replacing 'enum pci_channel_state'
with an anonymous 'enum'.

Note: Currently, from a typechecking point of view this patch changes
nothing because only the constants defined by the enum are bitwise, not the
enum itself (sparse doesn't have the notion of 'bitwise enum'). This may
change in some not too far future, hence the patch.

[bhelgaas: squash in
  https://lore.kernel.org/r/20200702162651.49526-3-luc.vanoostenryck@gmail.com
  https://lore.kernel.org/r/20200702162651.49526-4-luc.vanoostenryck@gmail.com]
Link: https://lore.kernel.org/r/20200702162651.49526-2-luc.vanoostenryck@gmail.com
Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2020-07-07 17:11:52 -05:00
Bjorn Helgaas
2a7e32d054 PCI: Fix pci_cfg_wait queue locking problem
The pci_cfg_wait queue is used to prevent user-space config accesses to
devices while they are recovering from reset.

Previously we used these operations on pci_cfg_wait:

  __add_wait_queue(&pci_cfg_wait, ...)
  __remove_wait_queue(&pci_cfg_wait, ...)
  wake_up_all(&pci_cfg_wait)

The wake_up acquires the wait queue lock, but the add and remove do not.

Originally these were all protected by the pci_lock, but cdcb33f982
("PCI: Avoid possible deadlock on pci_lock and p->pi_lock"), moved
wake_up_all() outside pci_lock, so it could race with add/remove
operations, which caused occasional kernel panics, e.g., during vfio-pci
hotplug/unplug testing:

  Unable to handle kernel read from unreadable memory at virtual address ffff802dac469000

Resolve this by using wait_event() instead of __add_wait_queue() and
__remove_wait_queue().  The wait queue lock is held by both wait_event()
and wake_up_all(), so it provides mutual exclusion.

Fixes: cdcb33f982 ("PCI: Avoid possible deadlock on pci_lock and p->pi_lock")
Link: https://lore.kernel.org/linux-pci/79827f2f-9b43-4411-1376-b9063b67aee3@huawei.com/T/#u
Based-on: https://lore.kernel.org/linux-pci/20191210031527.40136-1-zhengxiang9@huawei.com/
Based-on-patch-by: Xiang Zheng <zhengxiang9@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Tested-by: Xiang Zheng <zhengxiang9@huawei.com>
Cc: Heyi Guo <guoheyi@huawei.com>
Cc: Biaoxiang Ye <yebiaoxiang@huawei.com>
2020-07-07 15:09:01 -05:00
Piotr Stankiewicz
30ff3e8c28 PCI/MSI: Forward MSI-X error code in pci_alloc_irq_vectors_affinity()
When debugging an issue where I was asking the PCI machinery to enable a
set of MSI-X vectors, without falling back on MSI, I ran across a behaviour
which seems odd. The pci_alloc_irq_vectors_affinity() will always return
-ENOSPC on failure, when allocating MSI-X vectors only, whereas with MSI
fallback it will forward any error returned by __pci_enable_msi_range().
This is a confusing behaviour, so have the pci_alloc_irq_vectors_affinity()
forward the error code from __pci_enable_msix_range() when appropriate.

Link: https://lore.kernel.org/r/20200616073318.20229-1-piotr.stankiewicz@intel.com
Signed-off-by: Piotr Stankiewicz <piotr.stankiewicz@intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com>
Reviewed-by: Logan Gunthorpe <logang@deltatee.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
2020-06-30 17:02:39 -05:00
Bjorn Helgaas
16bbbc874f PCI: Replace lkml.org, spinics, gmane with lore.kernel.org
The lkml.org, spinics.net, and gmane.org archives are not very reliable
and, in some cases, not even easily accessible.  Replace links to them with
links to lore.kernel.org, the archives hosted by kernel.org.

I found the gmane items via the Wayback Machine archive at
https://web.archive.org/.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2020-06-30 13:05:16 -05:00
Alexander A. Klimov
7ecd4a8175 PCI: Replace http:// links with https://
Replace http:// links with https:// links.  This reduces the likelihood of
man-in-the-middle attacks when developers open these links.

  Deterministic algorithm:
  For each file:
    If not .svg:
      For each line:
	If doesn't contain `\bxmlns\b`:
	  For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`:
	    If both the HTTP and HTTPS versions
	    return 200 OK and serve the same content:
	      Replace HTTP with HTTPS.

[bhelgaas: also update samsung.com links, drop sourceforge link]
Link: https://lore.kernel.org/r/20200627103050.71712-1-grandmaster@al2klimov.de
Signed-off-by: Alexander A. Klimov <grandmaster@al2klimov.de>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2020-06-30 13:05:09 -05:00
Bolarinwa Olayemi Saheed
b91535812d PCI: Align PCIe capability and PCI accessor return values
The PCI config accessors (pci_read_config_word(), et al) return
PCIBIOS_SUCCESSFUL (zero) or positive error values like
PCIBIOS_FUNC_NOT_SUPPORTED.

The PCIe capability accessors similarly return PCIBIOS errors, but in
addition, they can return -EINVAL.  This makes it harder than it should be
to check for errors.

Return PCIBIOS_BAD_REGISTER_NUMBER instead of -EINVAL in all PCIe
capability accessors.

Suggested-by: Bjorn Helgaas <bjorn@helgaas.com>
Link: https://lore.kernel.org/r/20200615073225.24061-9-refactormyself@gmail.com
Signed-off-by: Bolarinwa Olayemi Saheed <refactormyself@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2020-06-26 13:50:41 -05:00
Bolarinwa Olayemi Saheed
d20df83b66 PCI: Convert PCIe capability PCIBIOS errors to errno
The PCI config accessors (pci_read_config_word(), et al) return
PCIBIOS_SUCCESSFUL (zero) or positive error values like
PCIBIOS_FUNC_NOT_SUPPORTED.

The PCIe capability accessors (pcie_capability_read_word(), et al)
similarly return PCIBIOS errors, but some callers assume they return
generic errno values like -EINVAL.

For example, the Myri-10G probe function returns a positive PCIBIOS error
if the pcie_capability_clear_and_set_word() in pcie_set_readrq() fails:

  myri10ge_probe
    status = pcie_set_readrq
      return pcie_capability_clear_and_set_word
    if (status)
      return status

A positive return from a PCI driver probe function would cause a "Driver
probe function unexpectedly returned" warning from local_pci_probe()
instead of the desired probe failure.

Convert PCIBIOS errors to generic errno for all callers of:

  pcie_capability_read_word
  pcie_capability_read_dword
  pcie_capability_write_word
  pcie_capability_write_dword
  pcie_capability_set_word
  pcie_capability_set_dword
  pcie_capability_clear_word
  pcie_capability_clear_dword
  pcie_capability_clear_and_set_word
  pcie_capability_clear_and_set_dword

that check the return code for anything other than zero.

[bhelgaas: commit log, squash together]
Suggested-by: Bjorn Helgaas <bjorn@helgaas.com>
Link: https://lore.kernel.org/r/20200615073225.24061-1-refactormyself@gmail.com
Signed-off-by: Bolarinwa Olayemi Saheed <refactormyself@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2020-06-26 13:50:09 -05:00
Linus Torvalds
b3a9e3b962 Linux 5.8-rc1 2020-06-14 12:45:04 -07:00
Linus Torvalds
4a87b197c1 Add additional LSM hooks for SafeSetID
SafeSetID is capable of making allow/deny decisions for set*uid calls
 on a system, and we want to add similar functionality for set*gid
 calls. The work to do that is not yet complete, so probably won't make
 it in for v5.8, but we are looking to get this simple patch in for
 v5.8 since we have it ready. We are planning on the rest of the work
 for extending the SafeSetID LSM being merged during the v5.9 merge
 window.
 
 This patch was sent to the security mailing list and there were no objections.
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Merge tag 'LSM-add-setgid-hook-5.8-author-fix' of git://github.com/micah-morton/linux

Pull SafeSetID update from Micah Morton:
 "Add additional LSM hooks for SafeSetID

  SafeSetID is capable of making allow/deny decisions for set*uid calls
  on a system, and we want to add similar functionality for set*gid
  calls.

  The work to do that is not yet complete, so probably won't make it in
  for v5.8, but we are looking to get this simple patch in for v5.8
  since we have it ready.

  We are planning on the rest of the work for extending the SafeSetID
  LSM being merged during the v5.9 merge window"

* tag 'LSM-add-setgid-hook-5.8-author-fix' of git://github.com/micah-morton/linux:
  security: Add LSM hooks to set*gid syscalls
2020-06-14 11:39:31 -07:00
Thomas Cedeno
39030e1351 security: Add LSM hooks to set*gid syscalls
The SafeSetID LSM uses the security_task_fix_setuid hook to filter
set*uid() syscalls according to its configured security policy. In
preparation for adding analagous support in the LSM for set*gid()
syscalls, we add the requisite hook here. Tested by putting print
statements in the security_task_fix_setgid hook and seeing them get hit
during kernel boot.

Signed-off-by: Thomas Cedeno <thomascedeno@google.com>
Signed-off-by: Micah Morton <mortonm@chromium.org>
2020-06-14 10:52:02 -07:00
Linus Torvalds
9d645db853 for-5.8-part2-tag
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Merge tag 'for-5.8-part2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux

Pull btrfs updates from David Sterba:
 "This reverts the direct io port to iomap infrastructure of btrfs
  merged in the first pull request. We found problems in invalidate page
  that don't seem to be fixable as regressions or without changing iomap
  code that would not affect other filesystems.

  There are four reverts in total, but three of them are followup
  cleanups needed to revert a43a67a2d7 cleanly. The result is the
  buffer head based implementation of direct io.

  Reverts are not great, but under current circumstances I don't see
  better options"

* tag 'for-5.8-part2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
  Revert "btrfs: switch to iomap_dio_rw() for dio"
  Revert "fs: remove dio_end_io()"
  Revert "btrfs: remove BTRFS_INODE_READDIO_NEED_LOCK"
  Revert "btrfs: split btrfs_direct_IO to read and write part"
2020-06-14 09:47:25 -07:00
Linus Torvalds
96144c58ab Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from David Miller:

 1) Fix cfg80211 deadlock, from Johannes Berg.

 2) RXRPC fails to send norigications, from David Howells.

 3) MPTCP RM_ADDR parsing has an off by one pointer error, fix from
    Geliang Tang.

 4) Fix crash when using MSG_PEEK with sockmap, from Anny Hu.

 5) The ucc_geth driver needs __netdev_watchdog_up exported, from
    Valentin Longchamp.

 6) Fix hashtable memory leak in dccp, from Wang Hai.

 7) Fix how nexthops are marked as FDB nexthops, from David Ahern.

 8) Fix mptcp races between shutdown and recvmsg, from Paolo Abeni.

 9) Fix crashes in tipc_disc_rcv(), from Tuong Lien.

10) Fix link speed reporting in iavf driver, from Brett Creeley.

11) When a channel is used for XSK and then reused again later for XSK,
    we forget to clear out the relevant data structures in mlx5 which
    causes all kinds of problems. Fix from Maxim Mikityanskiy.

12) Fix memory leak in genetlink, from Cong Wang.

13) Disallow sockmap attachments to UDP sockets, it simply won't work.
    From Lorenz Bauer.

* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (83 commits)
  net: ethernet: ti: ale: fix allmulti for nu type ale
  net: ethernet: ti: am65-cpsw-nuss: fix ale parameters init
  net: atm: Remove the error message according to the atomic context
  bpf: Undo internal BPF_PROBE_MEM in BPF insns dump
  libbpf: Support pre-initializing .bss global variables
  tools/bpftool: Fix skeleton codegen
  bpf: Fix memlock accounting for sock_hash
  bpf: sockmap: Don't attach programs to UDP sockets
  bpf: tcp: Recv() should return 0 when the peer socket is closed
  ibmvnic: Flush existing work items before device removal
  genetlink: clean up family attributes allocations
  net: ipa: header pad field only valid for AP->modem endpoint
  net: ipa: program upper nibbles of sequencer type
  net: ipa: fix modem LAN RX endpoint id
  net: ipa: program metadata mask differently
  ionic: add pcie_print_link_status
  rxrpc: Fix race between incoming ACK parser and retransmitter
  net/mlx5: E-Switch, Fix some error pointer dereferences
  net/mlx5: Don't fail driver on failure to create debugfs
  net/mlx5e: CT: Fix ipv6 nat header rewrite actions
  ...
2020-06-13 16:27:13 -07:00
David Sterba
55e20bd12a Revert "btrfs: switch to iomap_dio_rw() for dio"
This reverts commit a43a67a2d7.

This patch reverts the main part of switching direct io implementation
to iomap infrastructure. There's a problem in invalidate page that
couldn't be solved as regression in this development cycle.

The problem occurs when buffered and direct io are mixed, and the ranges
overlap. Although this is not recommended, filesystems implement
measures or fallbacks to make it somehow work. In this case, fallback to
buffered IO would be an option for btrfs (this already happens when
direct io is done on compressed data), but the change would be needed in
the iomap code, bringing new semantics to other filesystems.

Another problem arises when again the buffered and direct ios are mixed,
invalidation fails, then -EIO is set on the mapping and fsync will fail,
though there's no real error.

There have been discussions how to fix that, but revert seems to be the
least intrusive option.

Link: https://lore.kernel.org/linux-btrfs/20200528192103.xm45qoxqmkw7i5yl@fiona/
Signed-off-by: David Sterba <dsterba@suse.com>
2020-06-14 01:19:02 +02:00
Grygorii Strashko
bc139119a1 net: ethernet: ti: ale: fix allmulti for nu type ale
On AM65xx MCU CPSW2G NUSS and 66AK2E/L NUSS allmulti setting does not allow
unregistered mcast packets to pass.

This happens, because ALE VLAN entries on these SoCs do not contain port
masks for reg/unreg mcast packets, but instead store indexes of
ALE_VLAN_MASK_MUXx_REG registers which intended for store port masks for
reg/unreg mcast packets.
This path was missed by commit 9d1f644727 ("net: ethernet: ti: ale: fix
seeing unreg mcast packets with promisc and allmulti disabled").

Hence, fix it by taking into account ALE type in cpsw_ale_set_allmulti().

Fixes: 9d1f644727 ("net: ethernet: ti: ale: fix seeing unreg mcast packets with promisc and allmulti disabled")
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-13 15:37:17 -07:00
Grygorii Strashko
2074f9eaa5 net: ethernet: ti: am65-cpsw-nuss: fix ale parameters init
The ALE parameters structure is created on stack, so it has to be reset
before passing to cpsw_ale_create() to avoid garbage values.

Fixes: 93a7653031 ("net: ethernet: ti: introduce am65x/j721e gigabit eth subsystem driver")
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-13 15:35:08 -07:00
David S. Miller
fa7566a0d6 Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf
Alexei Starovoitov says:

====================
pull-request: bpf 2020-06-12

The following pull-request contains BPF updates for your *net* tree.

We've added 26 non-merge commits during the last 10 day(s) which contain
a total of 27 files changed, 348 insertions(+), 93 deletions(-).

The main changes are:

1) sock_hash accounting fix, from Andrey.

2) libbpf fix and probe_mem sanitizing, from Andrii.

3) sock_hash fixes, from Jakub.

4) devmap_val fix, from Jesper.

5) load_bytes_relative fix, from YiFei.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-13 15:28:08 -07:00
Liao Pingfang
bf97bac9dc net: atm: Remove the error message according to the atomic context
Looking into the context (atomic!) and the error message should be dropped.

Signed-off-by: Liao Pingfang <liao.pingfang@zte.com.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-13 15:27:06 -07:00
Linus Torvalds
f82e7b57b5 12 cifs/smb3 fixes, 2 for stable. Adds support for idsfromsid on create and chgrp/chown. Improves query info (getattr) when posix extensions negotiated.
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Merge tag '5.8-rc-smb3-fixes-part2' of git://git.samba.org/sfrench/cifs-2.6

Pull more cifs updates from Steve French:
 "12 cifs/smb3 fixes, 2 for stable.

   - add support for idsfromsid on create and chgrp/chown allowing
     ability to save owner information more naturally for some workloads

   - improve query info (getattr) when SMB3.1.1 posix extensions are
     negotiated by using new query info level"

* tag '5.8-rc-smb3-fixes-part2' of git://git.samba.org/sfrench/cifs-2.6:
  smb3: Add debug message for new file creation with idsfromsid mount option
  cifs: fix chown and chgrp when idsfromsid mount option enabled
  smb3: allow uid and gid owners to be set on create with idsfromsid mount option
  smb311: Add tracepoints for new compound posix query info
  smb311: add support for using info level for posix extensions query
  smb311: Add support for lookup with posix extensions query info
  smb311: Add support for SMB311 query info (non-compounded)
  SMB311: Add support for query info using posix extensions (level 100)
  smb3: add indatalen that can be a non-zero value to calculation of credit charge in smb2 ioctl
  smb3: fix typo in mount options displayed in /proc/mounts
  cifs: Add get_security_type_str function to return sec type.
  smb3: extend fscache mount volume coherency check
2020-06-13 13:43:56 -07:00
Linus Torvalds
4f9b3a3775 binderfs: add gitignore for generated sample program
Let's keep "git status" happy and quiet.

Fixes: 9762dc1432 ("samples: add binderfs sample program
Fixes: fca5e94921 ("samples: binderfs: really compile this sample and fix build issues")
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-06-13 13:41:24 -07:00
Linus Torvalds
3e1ad4054b doc: don't use deprecated "---help---" markers in target docs
I'm not convinced the script makes useful automaed help lines anyway,
but since we're trying to deprecate the use of "---help---" in Kconfig
files, let's fix the doc example code too.

See commit a7f7f6248d ("treewide: replace '---help---' in Kconfig
files with 'help'")

Cc: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-06-13 13:32:40 -07:00
Linus Torvalds
6adc19fd13 Kbuild updates for v5.8 (2nd)
- fix build rules in binderfs sample
 
  - fix build errors when Kbuild recurses to the top Makefile
 
  - covert '---help---' in Kconfig to 'help'
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Merge tag 'kbuild-v5.8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

Pull more Kbuild updates from Masahiro Yamada:

 - fix build rules in binderfs sample

 - fix build errors when Kbuild recurses to the top Makefile

 - covert '---help---' in Kconfig to 'help'

* tag 'kbuild-v5.8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
  treewide: replace '---help---' in Kconfig files with 'help'
  kbuild: fix broken builds because of GZIP,BZIP2,LZOP variables
  samples: binderfs: really compile this sample and fix build issues
2020-06-13 13:29:16 -07:00
Linus Torvalds
3df83e164f SCSI misc on 20200613
This is the set of changes collected since just before the merge
 window opened.  It's mostly minor fixes in drivers.  The one
 non-driver set is the three optical disk (sr) changes where two are
 error path fixes and one is a helper conversion.  The big driver
 change is the hpsa compat_alloc_userspace rework by Al so he can kill
 the remaining user.  This has been tested and acked by the maintainer.
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull more SCSI updates from James Bottomley:
 "This is the set of changes collected since just before the merge
  window opened. It's mostly minor fixes in drivers.

  The one non-driver set is the three optical disk (sr) changes where
  two are error path fixes and one is a helper conversion.

  The big driver change is the hpsa compat_alloc_userspace rework by Al
  so he can kill the remaining user. This has been tested and acked by
  the maintainer"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (21 commits)
  scsi: acornscsi: Fix an error handling path in acornscsi_probe()
  scsi: storvsc: Remove memset before memory freeing in storvsc_suspend()
  scsi: cxlflash: Remove an unnecessary NULL check
  scsi: ibmvscsi: Don't send host info in adapter info MAD after LPM
  scsi: sr: Fix sr_probe() missing deallocate of device minor
  scsi: sr: Fix sr_probe() missing mutex_destroy
  scsi: st: Convert convert get_user_pages() --> pin_user_pages()
  scsi: target: Rename target_setup_cmd_from_cdb() to target_cmd_parse_cdb()
  scsi: target: Fix NULL pointer dereference
  scsi: target: Initialize LUN in transport_init_se_cmd()
  scsi: target: Factor out a new helper, target_cmd_init_cdb()
  scsi: hpsa: hpsa_ioctl(): Tidy up a bit
  scsi: hpsa: Get rid of compat_alloc_user_space()
  scsi: hpsa: Don't bother with vmalloc for BIG_IOCTL_Command_struct
  scsi: hpsa: Lift {BIG_,}IOCTL_Command_struct copy{in,out} into hpsa_ioctl()
  scsi: ufs: Remove redundant urgent_bkop_lvl initialization
  scsi: ufs: Don't update urgent bkops level when toggling auto bkops
  scsi: qedf: Remove redundant initialization of variable rc
  scsi: mpt3sas: Fix memset() in non-RDPQ mode
  scsi: iscsi: Fix reference count leak in iscsi_boot_create_kobj
  ...
2020-06-13 13:17:49 -07:00
Linus Torvalds
91fa58840a Merge branch 'i2c/for-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c updates from Wolfram Sang:
 "I2C has quite some patches for you this time. I hope it is the move to
  per-driver-maintainers which is now showing results. We will see.

  The big news is two new drivers (Nuvoton NPCM and Qualcomm CCI),
  larger refactoring of the Designware, Tegra, and PXA drivers, the
  Cadence driver supports being a slave now, and there is support to
  instanciate SPD eeproms for well-known cases (which will be
  user-visible because the i801 driver supports it), and some
  devm_platform_ioremap_resource() conversions which blow up the
  diffstat.

  Note that I applied the Nuvoton driver quite late, so some minor fixup
  patches arrived during the merge window. I chose to apply them right
  away because they were trivial"

* 'i2c/for-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (109 commits)
  i2c: Drop stray comma in MODULE_AUTHOR statements
  i2c: npcm7xx: npcm_i2caddr[] can be static
  MAINTAINERS: npcm7xx: Add maintainer for Nuvoton NPCM BMC
  i2c: npcm7xx: Fix a couple of error codes in probe
  i2c: icy: Fix build with CONFIG_AMIGA_PCMCIA=n
  i2c: npcm7xx: Remove unnecessary parentheses
  i2c: npcm7xx: Add support for slave mode for Nuvoton
  i2c: npcm7xx: Add Nuvoton NPCM I2C controller driver
  dt-bindings: i2c: npcm7xx: add NPCM I2C controller
  i2c: pxa: don't error out if there's no pinctrl
  i2c: add 'single-master' property to generic bindings
  i2c: designware: Add Baikal-T1 System I2C support
  i2c: designware: Move reg-space remapping into a dedicated function
  i2c: designware: Retrieve quirk flags as early as possible
  i2c: designware: Convert driver to using regmap API
  i2c: designware: Discard Cherry Trail model flag
  i2c: designware: Add Baytrail sem config DW I2C platform dependency
  i2c: designware: slave: Set DW I2C core module dependency
  i2c: designware: Use `-y` to build multi-object modules
  dt-bindings: i2c: dw: Add Baikal-T1 SoC I2C controller
  ...
2020-06-13 13:12:38 -07:00
Linus Torvalds
ac911b3163 media updates for v5.8-rc1
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Merge tag 'media/v5.8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull more media updates from Mauro Carvalho Chehab:

 - a set of atomisp patches. They remove several abstraction layers, and
   fixes clang and gcc warnings (that were hidden via some macros that
   were disabling 4 or 5 types of warnings there). There are also some
   important fixes and sensor auto-detection on newer BIOSes via ACPI
   _DCM tables.

 - some fixes

* tag 'media/v5.8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (95 commits)
  media: rkvdec: Fix H264 scaling list order
  media: v4l2-ctrls: Unset correct HEVC loop filter flag
  media: videobuf2-dma-contig: fix bad kfree in vb2_dma_contig_clear_max_seg_size
  media: v4l2-subdev.rst: correct information about v4l2 events
  media: s5p-mfc: Properly handle dma_parms for the allocated devices
  media: medium: cec: Make MEDIA_CEC_SUPPORT default to n if !MEDIA_SUPPORT
  media: cedrus: Implement runtime PM
  media: cedrus: Program output format during each run
  media: atomisp: improve ACPI/DMI detection logs
  media: Revert "media: atomisp: add Asus Transform T101HA ACPI vars"
  media: Revert "media: atomisp: Add some ACPI detection info"
  media: atomisp: improve sensor detection code to use _DSM table
  media: atomisp: get rid of an iomem abstraction layer
  media: atomisp: get rid of a string_support.h abstraction layer
  media: atomisp: use strscpy() instead of less secure variants
  media: atomisp: set DFS to MAX if sensor doesn't report fps
  media: atomisp: use different dfs failed messages
  media: atomisp: change the detection of ISP2401 at runtime
  media: atomisp: use macros from intel-family.h
  media: atomisp: don't set hpll_freq twice with different values
  ...
2020-06-13 13:09:38 -07:00
Linus Torvalds
d74b15dbbb libnvdimm for 5.8
- Small collection of cleanups to rework usage of ->queuedata and the
   GUID api.
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Merge tag 'libnvdimm-for-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm

Pull libnvdimm updates from Dan Williams:
 "Small collection of cleanups to rework usage of ->queuedata and the
  GUID api"

* tag 'libnvdimm-for-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
  nvdimm/pmem: stop using ->queuedata
  nvdimm/btt: stop using ->queuedata
  nvdimm/blk: stop using ->queuedata
  libnvdimm: Replace guid_copy() with import_guid() where it makes sense
2020-06-13 13:04:36 -07:00
Linus Torvalds
298ce0fd50 watch_queue: add gitignore for generated sample program
Let's keep "git status" happy and quiet.

Fixes: f5b5a164f9 ("Add sample notification program")
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-06-13 13:00:54 -07:00
Linus Torvalds
593bd5e5d3 New code for 5.8:
- Fix an integer overflow problem in the unshare actor.
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Merge tag 'iomap-5.8-merge-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux

Pull iomap fix from Darrick Wong:
 "A single iomap bug fix for a variable type mistake on 32-bit
  architectures, fixing an integer overflow problem in the unshare
  actor"

* tag 'iomap-5.8-merge-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
  iomap: Fix unsharing of an extent >2GB on a 32-bit machine
2020-06-13 12:44:30 -07:00
Linus Torvalds
c555722768 Fixes for 5.8:
- Fix a resource leak on an error bailout.
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Merge tag 'xfs-5.8-merge-9' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux

Pull xfs fix from Darrick Wong:
 "We've settled down into the bugfix phase; this one fixes a resource
  leak on an error bailout path"

* tag 'xfs-5.8-merge-9' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
  xfs: Add the missed xfs_perag_put() for xfs_ifree_cluster()
2020-06-13 12:40:24 -07:00
Linus Torvalds
61f3e825be 9p pull request for inclusion in 5.8
Only one commit - increase the size of the ring used for xen transport.
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Merge tag '9p-for-5.8' of git://github.com/martinetd/linux

Pull 9p update from Dominique Martinet:
 "Another very quiet cycle... Only one commit: increase the size of the
  ring used for xen transport"

* tag '9p-for-5.8' of git://github.com/martinetd/linux:
  9p/xen: increase XEN_9PFS_RING_ORDER
2020-06-13 12:38:57 -07:00