Commit Graph

4102 Commits

Author SHA1 Message Date
Souptick Joarder
691e0f2c74 VMCI: Avoid extra check for access_ok()
get_user_pages_fast() is already having a check for the same. This
double check can be removed.

Signed-off-by: Souptick Joarder <jrdr.linux@gmail.com>
Link: https://lore.kernel.org/r/1588709912-8065-1-git-send-email-jrdr.linux@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-05-15 16:25:21 +02:00
Srinivas Kandagatla
74003385cf misc: fastrpc: fix potential fastrpc_invoke_ctx leak
fastrpc_invoke_ctx can have refcount of 2 in error path where
rpmsg_send() fails to send invoke message. decrement the refcount
properly in the error path to fix this leak.

This also fixes below static checker warning:

drivers/misc/fastrpc.c:990 fastrpc_internal_invoke()
warn: 'ctx->refcount.refcount.ref.counter' not decremented on lines: 990.

Fixes: c68cfb718c ("misc: fastrpc: Add support for context")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20200512110930.2550-1-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-05-15 16:21:08 +02:00
Srinivas Kandagatla
0978de9fc7 misc: fastrpc: Fix an incomplete memory release in fastrpc_rpmsg_probe()
fastrpc_channel_ctx is not freed if misc_register() fails, this would
lead to a memory leak. Fix this leak by adding kfree in misc_register()
error path.

Fixes: 278d56f970 ("misc: fastrpc: Reference count channel context")
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20200511162722.2552-1-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-05-15 16:21:08 +02:00
Harshal Chaudhari
286adb4cce misc: xilinx-sdfec: convert to module_platform_driver()
The driver init and exit function don't do anything besides registering
and unregistering the platform driver, so the module_platform_driver()
macro could just be used instead of having separate functions.

Signed-off-by: Harshal Chaudhari <harshalchau04@gmail.com>
Acked-by: Dragan Cvetic <dragan.cvetic@xilinx.com>
Link: https://lore.kernel.org/r/20200510164308.31358-1-harshalchau04@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-05-15 16:20:01 +02:00
Greg Kroah-Hartman
dd92b0133a Merge 5.7-rc5 into char-misc-next
We want the char-misc fixes in here as well.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-05-11 09:17:15 +02:00
Tomas Winkler
d76bc8200f mei: me: disable mei interface on LBG servers.
Disable the MEI driver on LBG SPS (server) platforms, some corner
flows such as recovery mode does not work, and the driver
doesn't have working use cases.

Cc: <stable@vger.kernel.org>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Link: https://lore.kernel.org/r/20200428211200.12200-1-tomas.winkler@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-05-05 16:56:41 +02:00
Greg Kroah-Hartman
48a4cc9503 Merge 5.7-rc3 into char-misc-next
We need the fixes in here as well.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-04-27 09:34:02 +02:00
Linus Torvalds
f6da8bd152 Merge tag 'char-misc-5.7-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver fixes from Greg KH:
 "Here are 4 small misc driver fixes for 5.7-rc3:

   - mei driver fix

   - interconnect driver fix

   - two fpga driver fixes

  All have been in linux-next with no reported issues"

* tag 'char-misc-5.7-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
  interconnect: qcom: Fix uninitialized tcs_cmd::wait
  mei: me: fix irq number stored in hw struct
  fpga: dfl: pci: fix return value of cci_pci_sriov_configure
  fpga: zynq: Remove clk_get error message for probe defer
2020-04-26 11:17:44 -07:00
Rui Feng
c18c1f1035 misc: rtsx: Improve compatibility for rts5261
Change initial clock to improve compatibility for rts5261

Signed-off-by: Rui Feng <rui_feng@realsil.com.cn>
Link: https://lore.kernel.org/r/1586918237-3016-1-git-send-email-rui_feng@realsil.com.cn
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-04-23 16:55:24 +02:00
Jason Yan
19df2f8ea9 sgi-xp: make some symbols static in xpc_main.c
Fix the following sparse warning:

drivers/misc/sgi-xp/xpc_main.c:62:22: warning: symbol 'xpc_dbg_name' was
not declared. Should it be static?
drivers/misc/sgi-xp/xpc_main.c:66:15: warning: symbol
'xpc_part_dbg_subname' was not declared. Should it be static?
drivers/misc/sgi-xp/xpc_main.c:71:15: warning: symbol
'xpc_chan_dbg_subname' was not declared. Should it be static?
drivers/misc/sgi-xp/xpc_main.c:1221:1: warning: symbol 'xpc_init' was
not declared. Should it be static?
drivers/misc/sgi-xp/xpc_main.c:1323:1: warning: symbol 'xpc_exit' was
not declared. Should it be static?

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Jason Yan <yanaijie@huawei.com>
Link: https://lore.kernel.org/r/20200410063618.27143-2-yanaijie@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-04-23 16:55:23 +02:00
Jason Yan
2a23537b3d sgi-xp: make some symbols static in xpnet.c
Fix the following sparse warning:

drivers/misc/sgi-xp/xpnet.c:99:19: warning: symbol 'xpnet_device' was
not declared. Should it be static?
drivers/misc/sgi-xp/xpnet.c:134:22: warning: symbol 'xpnet_dbg_name' was
not declared. Should it be static?
drivers/misc/sgi-xp/xpnet.c:138:15: warning: symbol 'xpnet_dbg_subname'
was not declared. Should it be static?
drivers/misc/sgi-xp/xpnet.c:143:15: warning: symbol 'xpnet' was not
declared. Should it be static?

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Jason Yan <yanaijie@huawei.com>
Link: https://lore.kernel.org/r/20200410063618.27143-1-yanaijie@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-04-23 16:55:23 +02:00
Zou Wei
15665c062b misc: xilinx_sdfec: Use memdup_user() as a cleanup
Fix coccicheck warning which recommends to use memdup_user().

This patch fixes the following coccicheck warnings:

drivers/misc/xilinx_sdfec.c:652:8-15: WARNING opportunity for memdup_user

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zou Wei <zou_wei@huawei.com>
Link: https://lore.kernel.org/r/1587524330-119776-1-git-send-email-zou_wei@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-04-23 16:32:51 +02:00
Hu Haowen
8419759f98 misc: mic: correct a typo
The word "Dont" is incorrect and should be replaced with "Don't".

Signed-off-by: Hu Haowen <xianfengting221@163.com>
Link: https://lore.kernel.org/r/20200330094519.17299-1-xianfengting221@163.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-04-23 16:32:51 +02:00
Gustavo A. R. Silva
c56851576b lkdtm: bugs: Fix spelling mistake
Fix spelling mistake s/Intentially/Intentionally

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Acked-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20200401182855.GA16253@embeddedor
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-04-23 16:30:09 +02:00
Benjamin Lee
fec874a81b mei: me: fix irq number stored in hw struct
Commit 261b3e1f2a ("mei: me: store irq number in the hw struct.")
stores the irq number in the hw struct before MSI is enabled.  This
caused a regression for mei_me_synchronize_irq() waiting for the wrong
irq number.  On my laptop this causes a hang on shutdown.  Fix the issue
by storing the irq number after enabling MSI.

Fixes: 261b3e1f2a ("mei: me: store irq number in the hw struct.")
Signed-off-by: Benjamin Lee <ben@b1c1l1.com>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20200417184538.349550-1-ben@b1c1l1.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-04-20 17:03:40 +02:00
Michael S. Tsirkin
d085eb8ce7 vhost: disable for OABI
vhost is currently broken on the some ARM configs.

The reason is that the ring element addresses are passed between
components with different alignments assumptions. Thus, if
guest selects a pointer and host then gets and dereferences
it, then alignment assumed by the host's compiler might be
greater than the actual alignment of the pointer.
compiler on the host from assuming pointer is aligned.

This actually triggers on ARM with -mabi=apcs-gnu - which is a
deprecated configuration. With this OABI, compiler assumes that
all structures are 4 byte aligned - which is stronger than
virtio guarantees for available and used rings, which are
merely 2 bytes. Thus a guest without -mabi=apcs-gnu running
on top of host with -mabi=apcs-gnu will be broken.

The correct fix is to force alignment of structures - however
that is an intrusive fix that's best deferred until the next release.

We didn't previously support such ancient systems at all - this surfaced
after vdpa support prompted removing dependency of vhost on
VIRTULIZATION. So for now, let's just add something along the lines of

	depends on !ARM || AEABI

to the virtio Kconfig declaration, and add a comment that it has to do
with struct member alignment.

Note: we can't make VHOST and VHOST_RING themselves have
a dependency since these are selected. Add a new symbol for that.

We should be able to drop this dependency down the road.

Fixes: 20c384f1ea ("vhost: refine vhost and vringh kconfig")
Suggested-by: Ard Biesheuvel <ardb@kernel.org>
Suggested-by: Richard Earnshaw <Richard.Earnshaw@arm.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2020-04-20 10:19:22 -04:00
Linus Torvalds
9bb715260e Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
Pull virtio updates from Michael Tsirkin:

 - Some bug fixes

 - The new vdpa subsystem with two first drivers

* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
  virtio-balloon: Revert "virtio-balloon: Switch back to OOM handler for VIRTIO_BALLOON_F_DEFLATE_ON_OOM"
  vdpa: move to drivers/vdpa
  virtio: Intel IFC VF driver for VDPA
  vdpasim: vDPA device simulator
  vhost: introduce vDPA-based backend
  virtio: introduce a vDPA based transport
  vDPA: introduce vDPA bus
  vringh: IOTLB support
  vhost: factor out IOTLB
  vhost: allow per device message handler
  vhost: refine vhost and vringh kconfig
  virtio-balloon: Switch back to OOM handler for VIRTIO_BALLOON_F_DEFLATE_ON_OOM
  virtio-net: Introduce hash report feature
  virtio-net: Introduce RSS receive steering feature
  virtio-net: Introduce extended RSC feature
  tools/virtio: option to build an out of tree module
2020-04-08 10:51:53 -07:00
Kees Cook
ae2e1aad3e drivers/misc/lkdtm/bugs.c: add arithmetic overflow and array bounds checks
Adds LKDTM tests for arithmetic overflow (both signed and unsigned), as
well as array bounds checking.

Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Dmitry Vyukov <dvyukov@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Konovalov <andreyknvl@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Elena Petrova <lenaptr@google.com>
Cc: "Gustavo A. R. Silva" <gustavo@embeddedor.com>
Link: http://lkml.kernel.org/r/20200227193516.32566-4-keescook@chromium.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-04-07 10:43:44 -07:00
Linus Torvalds
86f26a77cb Merge tag 'pci-v5.7-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull pci updates from Bjorn Helgaas:
 "Enumeration:

   - Revert sysfs "rescan" renames that broke apps (Kelsey Skunberg)

   - Add more 32 GT/s link speed decoding and improve the implementation
     (Yicong Yang)

  Resource management:

   - Add support for sizing programmable host bridge apertures and fix a
     related alpha Nautilus regression (Ivan Kokshaysky)

  Interrupts:

   - Add boot interrupt quirk mechanism for Xeon chipsets and document
     boot interrupts (Sean V Kelley)

  PCIe native device hotplug:

   - When possible, disable in-band presence detect and use PDS
     (Alexandru Gagniuc)

   - Add DMI table for devices that don't use in-band presence detection
     but don't advertise that correctly (Stuart Hayes)

   - Fix hang when powering slots up/down via sysfs (Lukas Wunner)

   - Fix an MSI interrupt race (Stuart Hayes)

  Virtualization:

   - Add ACS quirks for Zhaoxin devices (Raymond Pang)

  Error handling:

   - Add Error Disconnect Recover (EDR) support so firmware can report
     devices disconnected via DPC and we can try to recover (Kuppuswamy
     Sathyanarayanan)

  Peer-to-peer DMA:

   - Add Intel Sky Lake-E Root Ports B, C, D to the whitelist (Andrew
     Maier)

  ASPM:

   - Reduce severity of common clock config message (Chris Packham)

   - Clear the correct bits when enabling L1 substates, so we don't go
     to the wrong state (Yicong Yang)

  Endpoint framework:

   - Replace EPF linkup ops with notifier call chain and improve locking
     (Kishon Vijay Abraham I)

   - Fix concurrent memory allocation in OB address region (Kishon Vijay
     Abraham I)

   - Move PF function number assignment to EPC core to support multiple
     function creation methods (Kishon Vijay Abraham I)

   - Fix issue with clearing configfs "start" entry (Kunihiko Hayashi)

   - Fix issue with endpoint MSI-X ignoring BAR Indicator and Table
     Offset (Kishon Vijay Abraham I)

   - Add support for testing DMA transfers (Kishon Vijay Abraham I)

   - Add support for testing > 10 endpoint devices (Kishon Vijay Abraham I)

   - Add support for tests to clear IRQ (Kishon Vijay Abraham I)

   - Add common DT schema for endpoint controllers (Kishon Vijay Abraham I)

  Amlogic Meson PCIe controller driver:

   - Add DT bindings for AXG PCIe PHY, shared MIPI/PCIe analog PHY (Remi
     Pommarel)

   - Add Amlogic AXG PCIe PHY, AXG MIPI/PCIe analog PHY drivers (Remi
     Pommarel)

  Cadence PCIe controller driver:

   - Add Root Complex/Endpoint DT schema for Cadence PCIe (Kishon Vijay
     Abraham I)

  Intel VMD host bridge driver:

   - Add two VMD Device IDs that require bus restriction mode (Sushma
     Kalakota)

  Mobiveil PCIe controller driver:

   - Refactor and modularize mobiveil driver (Hou Zhiqiang)

   - Add support for Mobiveil GPEX Gen4 host (Hou Zhiqiang)

  Microsoft Hyper-V host bridge driver:

   - Add support for Hyper-V PCI protocol version 1.3 and
     PCI_BUS_RELATIONS2 (Long Li)

   - Refactor to prepare for virtual PCI on non-x86 architectures (Boqun
     Feng)

   - Fix memory leak in hv_pci_probe()'s error path (Dexuan Cui)

  NVIDIA Tegra PCIe controller driver:

   - Use pci_parse_request_of_pci_ranges() (Rob Herring)

   - Add support for endpoint mode and related DT updates (Vidya Sagar)

   - Reduce -EPROBE_DEFER error message log level (Thierry Reding)

  Qualcomm PCIe controller driver:

   - Restrict class fixup to specific Qualcomm devices (Bjorn Andersson)

  Synopsys DesignWare PCIe controller driver:

   - Refactor core initialization code for endpoint mode (Vidya Sagar)

   - Fix endpoint MSI-X to use correct table address (Kishon Vijay
     Abraham I)

  TI DRA7xx PCIe controller driver:

   - Fix MSI IRQ handling (Vignesh Raghavendra)

  TI Keystone PCIe controller driver:

   - Allow AM654 endpoint to raise MSI-X interrupt (Kishon Vijay Abraham I)

  Miscellaneous:

   - Quirk ASMedia XHCI USB to avoid "PME# from D0" defect (Kai-Heng
     Feng)

   - Use ioremap(), not phys_to_virt(), for platform ROM to fix video
     ROM mapping with CONFIG_HIGHMEM (Mikel Rychliski)"

* tag 'pci-v5.7-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (96 commits)
  misc: pci_endpoint_test: remove duplicate macro PCI_ENDPOINT_TEST_STATUS
  PCI: tegra: Print -EPROBE_DEFER error message at debug level
  misc: pci_endpoint_test: Use full pci-endpoint-test name in request_irq()
  misc: pci_endpoint_test: Fix to support > 10 pci-endpoint-test devices
  tools: PCI: Add 'e' to clear IRQ
  misc: pci_endpoint_test: Add ioctl to clear IRQ
  misc: pci_endpoint_test: Avoid using module parameter to determine irqtype
  PCI: keystone: Allow AM654 PCIe Endpoint to raise MSI-X interrupt
  PCI: dwc: Fix dw_pcie_ep_raise_msix_irq() to get correct MSI-X table address
  PCI: endpoint: Fix ->set_msix() to take BIR and offset as arguments
  misc: pci_endpoint_test: Add support to get DMA option from userspace
  tools: PCI: Add 'd' command line option to support DMA
  misc: pci_endpoint_test: Use streaming DMA APIs for buffer allocation
  PCI: endpoint: functions/pci-epf-test: Print throughput information
  PCI: endpoint: functions/pci-epf-test: Add DMA support to transfer data
  PCI: pciehp: Fix MSI interrupt race
  PCI: pciehp: Fix indefinite wait on sysfs requests
  PCI: endpoint: Fix clearing start entry in configfs
  PCI: tegra: Add support for PCIe endpoint mode in Tegra194
  PCI: sysfs: Revert "rescan" file renames
  ...
2020-04-03 14:25:02 -07:00
Linus Torvalds
0ad5b053d4 Merge tag 'char-misc-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver updates from Greg KH:
 "Here is the big set of char/misc/other driver patches for 5.7-rc1.

  Lots of things in here, and it's later than expected due to some
  reverts to resolve some reported issues. All is now clean with no
  reported problems in linux-next.

  Included in here is:
   - interconnect updates
   - mei driver updates
   - uio updates
   - nvmem driver updates
   - soundwire updates
   - binderfs updates
   - coresight updates
   - habanalabs updates
   - mhi new bus type and core
   - extcon driver updates
   - some Kconfig cleanups
   - other small misc driver cleanups and updates

  As mentioned, all have been in linux-next for a while, and with the
  last two reverts, all is calm and good"

* tag 'char-misc-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (174 commits)
  Revert "driver core: platform: Initialize dma_parms for platform devices"
  Revert "amba: Initialize dma_parms for amba devices"
  amba: Initialize dma_parms for amba devices
  driver core: platform: Initialize dma_parms for platform devices
  bus: mhi: core: Drop the references to mhi_dev in mhi_destroy_device()
  bus: mhi: core: Initialize bhie field in mhi_cntrl for RDDM capture
  bus: mhi: core: Add support for reading MHI info from device
  misc: rtsx: set correct pcr_ops for rts522A
  speakup: misc: Use dynamic minor numbers for speakup devices
  mei: me: add cedar fork device ids
  coresight: do not use the BIT() macro in the UAPI header
  Documentation: provide IBM contacts for embargoed hardware
  nvmem: core: remove nvmem_sysfs_get_groups()
  nvmem: core: use is_bin_visible for permissions
  nvmem: core: use device_register and device_unregister
  nvmem: core: add root_only member to nvmem device struct
  extcon: axp288: Add wakeup support
  extcon: Mark extcon_get_edev_name() function as exported symbol
  extcon: palmas: Hide error messages if gpio returns -EPROBE_DEFER
  dt-bindings: extcon: usbc-cros-ec: convert extcon-usbc-cros-ec.txt to yaml format
  ...
2020-04-03 13:22:40 -07:00
Linus Torvalds
5c8db3eb38 Merge branch 'i2c/for-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c updates from Wolfram Sang:
 "I2C has:

   - using defines for bus speeds to avoid mistakes in hardcoded values;
     lots of small driver updates because of that. Thanks, Andy!

   - API change: i2c_setup_smbus_alert() was renamed to
     i2c_new_smbus_alert_device() and returns ERRPTR now. All in-tree
     users have been converted

   - in the core, a rare race condition when deleting the cdev has been
     fixed. Thanks, Kevin!

   - lots of driver updates. Thanks, everyone!

  I also want to mention: The amount of review and testing tags given
  was quite high this time. Thank you to these people, too. I hope we
  can keep it like this!"

* 'i2c/for-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (34 commits)
  i2c: rcar: clean up after refactoring i2c_timings
  macintosh: convert to i2c_new_scanned_device
  i2c: drivers: Use generic definitions for bus frequencies
  i2c: algo: Use generic definitions for bus frequencies
  i2c: stm32f7: switch to I²C generic property parsing
  i2c: rcar: Consolidate timings calls in rcar_i2c_clock_calculate()
  i2c: core: Allow override timing properties with 0
  i2c: core: Provide generic definitions for bus frequencies
  i2c: mxs: Use dma_request_chan() instead dma_request_slave_channel()
  i2c: imx: remove duplicate print after platform_get_irq()
  i2c: designware: Fix spelling typos in the comments
  i2c: designware: Discard i2c_dw_read_comp_param() function
  i2c: designware: Detect the FIFO size in the common code
  i2c: dev: Fix the race between the release of i2c_dev and cdev
  i2c: qcom-geni: Drop of_platform.h include
  i2c: qcom-geni: Grow a dev pointer to simplify code
  i2c: qcom-geni: Let firmware specify irq trigger flags
  i2c: stm32f7: do not backup read-only PECR register
  i2c: smbus: remove outdated references to irq level triggers
  i2c: convert SMBus alert setup function to return an ERRPTR
  ...
2020-04-02 15:54:13 -07:00
Lad Prabhakar
e48ba3eb29 misc: pci_endpoint_test: remove duplicate macro PCI_ENDPOINT_TEST_STATUS
PCI_ENDPOINT_TEST_STATUS is already defined in pci_endpoint_test.c along
with the status bits, drop the duplicate definition.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
2020-04-02 17:57:10 +01:00
Kishon Vijay Abraham I
c2be14ab32 misc: pci_endpoint_test: Use full pci-endpoint-test name in request_irq()
Use full pci-endpoint-test name in request_irq(), so that it's easy to
profile the device that actually raised the interrupt.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
2020-04-02 17:57:10 +01:00
Kishon Vijay Abraham I
6b443e5c80 misc: pci_endpoint_test: Fix to support > 10 pci-endpoint-test devices
Adding more than 10 pci-endpoint-test devices results in
"kobject_add_internal failed for pci-endpoint-test.1 with -EEXIST, don't
try to register things with the same name in the same directory". This
is because commit 2c156ac71c ("misc: Add host side PCI driver for PCI
test function device") limited the length of the "name" to 20 characters.
Change the length of the name to 24 in order to support upto 10000
pci-endpoint-test devices.

Fixes: 2c156ac71c ("misc: Add host side PCI driver for PCI test function device")
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: stable@vger.kernel.org # v4.14+
2020-04-02 17:57:10 +01:00
Kishon Vijay Abraham I
475007f9ce misc: pci_endpoint_test: Add ioctl to clear IRQ
Add ioctl to clear IRQ which can be used to free the allocated
IRQ vectors and free the requested IRQ.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
2020-04-02 17:57:10 +01:00