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ca8210_test_int_driver_write
Replace calls to kmalloc followed by a memcpy with a direct call to
kmemdup.
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org>
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Jens writes:
"Storage fixes for 4.19-rc5
- Fix for leaking kernel pointer in floppy ioctl (Andy Whitcroft)
- NVMe pull request from Christoph, and a single ANA log page fix
(Hannes)
- Regression fix for libata qd32 support, where we trigger an illegal
active command transition. This fixes a CD-ROM detection issue that
was reported, but could also trigger premature completion of the
internal tag (me)"
* tag 'for-linus-20180920' of git://git.kernel.dk/linux-block:
floppy: Do not copy a kernel pointer to user memory in FDGETPRM ioctl
libata: mask swap internal and hardware tag
nvme: count all ANA groups for ANA Log page
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David writes:
"drm fixes for 4.19-rc5:
- core: fix debugfs for atomic, fix the check for atomic for
non-modesetting drivers
- amdgpu: adds a new PCI id, some kfd fixes and a sdma fix
- i915: a bunch of GVT fixes.
- vc4: scaling fix
- vmwgfx: modesetting fixes and a old buffer eviction fix
- udl: framebuffer destruction fix
- sun4i: disable on R40 fix until next kernel
- pl111: NULL termination on table fix"
* tag 'drm-fixes-2018-09-21' of git://anongit.freedesktop.org/drm/drm: (21 commits)
drm/amdkfd: Fix ATS capablity was not reported correctly on some APUs
drm/amdkfd: Change the control stack MTYPE from UC to NC on GFX9
drm/amdgpu: Fix SDMA HQD destroy error on gfx_v7
drm/vmwgfx: Fix buffer object eviction
drm/vmwgfx: Don't impose STDU limits on framebuffer size
drm/vmwgfx: limit mode size for all display unit to texture_max
drm/vmwgfx: limit screen size to stdu_max during check_modeset
drm/vmwgfx: don't check for old_crtc_state enable status
drm/amdgpu: add new polaris pci id
drm: sun4i: drop second PLL from A64 HDMI PHY
drm: fix drm_drv_uses_atomic_modeset on non modesetting drivers.
drm/i915/gvt: clear ggtt entries when destroy vgpu
drm/i915/gvt: request srcu_read_lock before checking if one gfn is valid
drm/i915/gvt: Add GEN9_CLKGATE_DIS_4 to default BXT mmio handler
drm/i915/gvt: Init PHY related registers for BXT
drm/atomic: Use drm_drv_uses_atomic_modeset() for debugfs creation
drm/fb-helper: Remove set but not used variable 'connector_funcs'
drm: udl: Destroy framebuffer only if it was initialized
drm/sun4i: Remove R40 display pipeline compatibles
drm/pl111: Make sure of_device_id tables are NULL terminated
...
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In some cases the zero-length hw_desc array at the end of
ablkcipher_edesc struct requires for 4B of tail padding.
Due to tail padding and the way pointers to S/G table and IV
are computed:
edesc->sec4_sg = (void *)edesc + sizeof(struct ablkcipher_edesc) +
desc_bytes;
iv = (u8 *)edesc->hw_desc + desc_bytes + sec4_sg_bytes;
first 4 bytes of IV are overwritten by S/G table.
Update computation of pointer to S/G table to rely on offset of hw_desc
member and not on sizeof() operator.
Cc: <stable@vger.kernel.org> # 4.13+
Fixes: 115957bb3e59 ("crypto: caam - fix IV DMA mapping and updating")
Signed-off-by: Horia Geantă <horia.geanta@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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It was reported that chip version 33 (RTL8168E) ends up with
10MBit/Half on a 1GBit link after resuming from S3 (with different
link partners). For whatever reason the PHY on this chip doesn't
properly start a renegotiation when soft-reset.
Explicitly requesting a renegotiation fixes this.
Fixes: a2965f12fde6 ("r8169: remove rtl8169_set_speed_xmii")
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reported-by: Neil MacLeod <neil@nmacleod.com>
Tested-by: Neil MacLeod <neil@nmacleod.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The driver currently uses the ndlp to get the local rport which is then used
to get the nvme transport remoteport pointer. There can be cases where a stale
remoteport pointer is obtained as synchronization isn't done through the
different dereferences.
Correct by using locks to synchronize the dereferences.
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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blk-mq does not support runtime pm, so disable blk-mq support for now.
Fixes: d5038a13eca7 ("scsi: core: switch to scsi-mq by default")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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rvt_destroy_qp() cannot complete until all in process packets have
been released from the underlying hardware. If a link down event
occurs, an application can hang with a kernel stack similar to:
cat /proc/<app PID>/stack
quiesce_qp+0x178/0x250 [hfi1]
rvt_reset_qp+0x23d/0x400 [rdmavt]
rvt_destroy_qp+0x69/0x210 [rdmavt]
ib_destroy_qp+0xba/0x1c0 [ib_core]
nvme_rdma_destroy_queue_ib+0x46/0x80 [nvme_rdma]
nvme_rdma_free_queue+0x3c/0xd0 [nvme_rdma]
nvme_rdma_destroy_io_queues+0x88/0xd0 [nvme_rdma]
nvme_rdma_error_recovery_work+0x52/0xf0 [nvme_rdma]
process_one_work+0x17a/0x440
worker_thread+0x126/0x3c0
kthread+0xcf/0xe0
ret_from_fork+0x58/0x90
0xffffffffffffffff
quiesce_qp() waits until all outstanding packets have been freed.
This wait should be momentary. During a link down event, the cleanup
handling does not ensure that all packets caught by the link down are
flushed properly.
This is caused by the fact that the freeze path and the link down
event is handled the same. This is not correct. The freeze path
waits until the HFI is unfrozen and then restarts PIO. A link down
is not a freeze event. The link down path cannot restart the PIO
until link is restored. If the PIO path is restarted before the link
comes up, the application (QP) using the PIO path will hang (until
link is restored).
Fix by separating the linkdown path from the freeze path and use the
link down path for link down events.
Close a race condition sc_disable() by acquiring both the progress
and release locks.
Close a race condition in sc_stop() by moving the setting of the flag
bits under the alloc lock.
Cc: <stable@vger.kernel.org> # 4.9.x+
Fixes: 7724105686e7 ("IB/hfi1: add driver files")
Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Michael J. Ruhl <michael.j.ruhl@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
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If a packet stream uses an UnsupportedVL (virtual lane), the send
engine will not send the packet, and it will not indicate that an
error has occurred. This will cause the packet stream to block.
HFI has 8 virtual lanes available for packet streams. Each lane can
be enabled or disabled using the UnsupportedVL mask. If a lane is
disabled, adding a packet to the send context must be disallowed.
The current mask for determining unsupported VLs defaults to 0 (allow
all). This is incorrect. Only the VLs that are defined should be
allowed.
Determine which VLs are disabled (mtu == 0), and set the appropriate
unsupported bit in the mask. The correct mask will allow the send
engine to error on the invalid VL, and error recovery will work
correctly.
Cc: <stable@vger.kernel.org> # 4.9.x+
Fixes: 7724105686e7 ("IB/hfi1: add driver files")
Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Reviewed-by: Lukasz Odzioba <lukasz.odzioba@intel.com>
Signed-off-by: Michael J. Ruhl <michael.j.ruhl@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
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If the number of packets in a user sdma request does not match
the actual iovectors being sent, sdma_cleanup can be called on
an uninitialized request structure, resulting in a crash similar
to this:
BUG: unable to handle kernel NULL pointer dereference at 0000000000000008
IP: [<ffffffffc0ae8bb7>] __sdma_txclean+0x57/0x1e0 [hfi1]
PGD 8000001044f61067 PUD 1052706067 PMD 0
Oops: 0000 [#1] SMP
CPU: 30 PID: 69912 Comm: upsm Kdump: loaded Tainted: G OE
------------ 3.10.0-862.el7.x86_64 #1
Hardware name: Intel Corporation S2600KPR/S2600KPR, BIOS
SE5C610.86B.01.01.0019.101220160604 10/12/2016
task: ffff8b331c890000 ti: ffff8b2ed1f98000 task.ti: ffff8b2ed1f98000
RIP: 0010:[<ffffffffc0ae8bb7>] [<ffffffffc0ae8bb7>] __sdma_txclean+0x57/0x1e0
[hfi1]
RSP: 0018:ffff8b2ed1f9bab0 EFLAGS: 00010286
RAX: 0000000000008b2b RBX: ffff8b2adf6e0000 RCX: 0000000000000000
RDX: 00000000000000a0 RSI: ffff8b2e9eedc540 RDI: ffff8b2adf6e0000
RBP: ffff8b2ed1f9bad8 R08: 0000000000000000 R09: ffffffffc0b04a06
R10: ffff8b331c890190 R11: ffffe6ed00bf1840 R12: ffff8b3315480000
R13: ffff8b33154800f0 R14: 00000000fffffff2 R15: ffff8b2e9eedc540
FS: 00007f035ac47740(0000) GS:ffff8b331e100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000008 CR3: 0000000c03fe6000 CR4: 00000000001607e0
Call Trace:
[<ffffffffc0b0570d>] user_sdma_send_pkts+0xdcd/0x1990 [hfi1]
[<ffffffff9fe75fb0>] ? gup_pud_range+0x140/0x290
[<ffffffffc0ad3105>] ? hfi1_mmu_rb_insert+0x155/0x1b0 [hfi1]
[<ffffffffc0b0777b>] hfi1_user_sdma_process_request+0xc5b/0x11b0 [hfi1]
[<ffffffffc0ac193a>] hfi1_aio_write+0xba/0x110 [hfi1]
[<ffffffffa001a2bb>] do_sync_readv_writev+0x7b/0xd0
[<ffffffffa001bede>] do_readv_writev+0xce/0x260
[<ffffffffa022b089>] ? tty_ldisc_deref+0x19/0x20
[<ffffffffa02268c0>] ? n_tty_ioctl+0xe0/0xe0
[<ffffffffa001c105>] vfs_writev+0x35/0x60
[<ffffffffa001c2bf>] SyS_writev+0x7f/0x110
[<ffffffffa051f7d5>] system_call_fastpath+0x1c/0x21
Code: 06 49 c7 47 18 00 00 00 00 0f 87 89 01 00 00 5b 41 5c 41 5d 41 5e 41 5f
5d c3 66 2e 0f 1f 84 00 00 00 00 00 48 8b 4e 10 48 89 fb <48> 8b 51 08 49 89 d4
83 e2 0c 41 81 e4 00 e0 00 00 48 c1 ea 02
RIP [<ffffffffc0ae8bb7>] __sdma_txclean+0x57/0x1e0 [hfi1]
RSP <ffff8b2ed1f9bab0>
CR2: 0000000000000008
There are two exit points from user_sdma_send_pkts(). One (free_tx)
merely frees the slab entry and one (free_txreq) cleans the sdma_txreq
prior to freeing the slab entry. The free_txreq variation can only be
called after one of the sdma_init*() variations has been called.
In the panic case, the slab entry had been allocated but not inited.
Fix the issue by exiting through free_tx thus avoiding sdma_clean().
Cc: <stable@vger.kernel.org> # 4.9.x+
Fixes: 7724105686e7 ("IB/hfi1: add driver files")
Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Reviewed-by: Lukasz Odzioba <lukasz.odzioba@intel.com>
Signed-off-by: Michael J. Ruhl <michael.j.ruhl@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
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The SL specified by a user needs to be a valid SL.
Add a range check to the user specified SL value which protects from
running off the end of the SL to SC table.
CC: stable@vger.kernel.org
Fixes: 7724105686e7 ("IB/hfi1: add driver files")
Signed-off-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
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into drm-fixes
A few fixes for 4.19:
- Add a new polaris pci id
- KFD fixes for raven and gfx7
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexdeucher@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180920155850.5455-1-alexander.deucher@amd.com
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Uverbs shouldn't enforce QP state in the command unless the user set the QP
state bit in the attribute mask.
In addition, only copy qp attr fields which have the corresponding bit set
in the attribute mask over to the internal attr structure.
Fixes: 88de869bbe4f ("RDMA/uverbs: Ensure validity of current QP state value")
Fixes: bc38a6abdd5a ("[PATCH] IB uverbs: core implementation")
Signed-off-by: Majd Dibbiny <majd@mellanox.com>
Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
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When programming the inbound/outbound ATUs, we call usleep_range() after
each checking PCIE_ATU_ENABLE bit. Unfortunately, the ATU programming
can be executed in atomic context:
inbound ATU programming could be called through
pci_epc_write_header()
=>dw_pcie_ep_write_header()
=>dw_pcie_prog_inbound_atu()
outbound ATU programming could be called through
pci_bus_read_config_dword()
=>dw_pcie_rd_conf()
=>dw_pcie_prog_outbound_atu()
Fix this issue by calling mdelay() instead.
Fixes: f8aed6ec624f ("PCI: dwc: designware: Add EP mode support")
Fixes: d8bbeb39fbf3 ("PCI: designware: Wait for iATU enable")
Signed-off-by: Jisheng Zhang <Jisheng.Zhang@synaptics.com>
[lorenzo.pieralisi@arm.com: commit log update]
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
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bnxt offload code currently supports only 'push' and 'pop' operation: let
.ndo_setup_tc() return -EOPNOTSUPP if VLAN 'modify' action is configured.
Fixes: 2ae7408fedfe ("bnxt_en: bnxt: add TC flower filter offload support")
Signed-off-by: Davide Caratti <dcaratti@redhat.com>
Acked-by: Sathya Perla <sathya.perla@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The CEC_TX_STATUS_MAX_RETRIES should be set for errors only to
prevent the CEC framework from retrying the transmit. If the
transmit was successful, then don't set this flag.
Found by running 'cec-compliance -A' on a beaglebone box.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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Currently the check to see if the timeout has reached zero is incorrect
and the check is instead checking if the timeout is non-zero and not
zero, hence it will break out of the loop on the first iteration and
the msleep is never executed. Fix this by breaking from the loop when
timeout is zero.
Detected by CoverityScan, CID#1469404 ("Logically Dead Code")
Fixes: f0316f93897c ("drm/i2c: tda9950: add CEC driver")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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dev_set_drvdata() needs to be called before device_register()
exposes device to userspace. Otherwise kernel crashes after it
gets null pointer from dev_get_drvdata() when userspace tries
to access sysfs entries.
[Removed backtrace for length -- broonie]
Signed-off-by: Yu Zhao <yuzhao@google.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org
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Because CRAT_CU_FLAGS_IOMMU_PRESENT was not set in some BIOS crat, we
need to workaround this.
For future compatibility, we also overwrite the bit in capability according
to the value of needs_iommu_device.
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Yong Zhao <Yong.Zhao@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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CWSR fails on Raven if the control stack is MTYPE_UC, which is used
for regular GART mappings. As a workaround we map it using MTYPE_NC.
The MEC firmware expects the control stack at one page offset from the
start of the MQD so it is part of the MQD allocation on GFXv9. AMDGPU
added a memory allocation flag just for this purpose.
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Yong Zhao <yong.zhao@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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A wrong register bit was examinated for checking SDMA status so it reports
false failures. This typo only appears on gfx_v7. gfx_v8 checks the correct
bit.
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Amber Lin <Amber.Lin@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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For some reason I thought GPIOLIB handles translation from GPIO ranges
to pinctrl pins but it turns out not to be the case. This means that
when GPIOs operations are performed for a pin controller having a custom
GPIO base such as Cannon Lake and Ice Lake incorrect pin number gets
used internally.
Fix this in the same way we did for lock/unlock IRQ operations and
translate the GPIO number to pin before using it.
Fixes: a60eac3239f0 ("pinctrl: intel: Allow custom GPIO base for pad groups")
Reported-by: Rajat Jain <rajatja@google.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Tested-by: Rajat Jain <rajatja@google.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Pull NVMe fix from Christoph.
* 'nvme-4.19' of git://git.infradead.org/nvme:
nvme: count all ANA groups for ANA Log page
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The final field of a floppy_struct is the field "name", which is a pointer
to a string in kernel memory. The kernel pointer should not be copied to
user memory. The FDGETPRM ioctl copies a floppy_struct to user memory,
including this "name" field. This pointer cannot be used by the user
and it will leak a kernel address to user-space, which will reveal the
location of kernel code and data and undermine KASLR protection.
Model this code after the compat ioctl which copies the returned data
to a previously cleared temporary structure on the stack (excluding the
name pointer) and copy out to userspace from there. As we already have
an inparam union with an appropriate member and that memory is already
cleared even for read only calls make use of that as a temporary store.
Based on an initial patch by Brian Belleville.
CVE-2018-7755
Signed-off-by: Andy Whitcroft <apw@canonical.com>
Broke up long line.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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MC-aware mode was introduced to mlxsw in commit 7b8195306694 ("mlxsw: spectrum:
Configure MC-aware mode on mlxsw ports") and fixed up later in commit
3a3539cd3632 ("mlxsw: spectrum_buffers: Set up a dedicated pool for BUM
traffic"). As the final piece of puzzle, a firmware issue whereby a wrong
priority was assigned to BUM traffic was corrected in FW version 13.1703.4.
Therefore require this FW version in the driver.
Fixes: 7b8195306694 ("mlxsw: spectrum: Configure MC-aware mode on mlxsw ports")
Signed-off-by: Petr Machata <petrm@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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hen we're comparing the hardware completion mask passed in from the
driver with the internal tag pending mask, we need to account for the
fact that the internal tag is different from the hardware tag. If not,
then we can end up either prematurely completing the internal tag (since
it's not set in the hw mask), or simply flag an error:
ata2: illegal qc_active transition (100000000->00000001)
If the internal tag is set, then swap that with the hardware tag in this
case before comparing with what the hardware reports.
Fixes: 28361c403683 ("libata: add extra internal command")
Buglink: https://bugzilla.kernel.org/show_bug.cgi?id=201151
Cc: stable@vger.kernel.org
Reported-by: Paul Sbarra <sbarra.paul@gmail.com>
Tested-by: Paul Sbarra <sbarra.paul@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Fixed errors spaces required around the for loop '=' , ';' and '<'
in drivers/usb/storage/isd200.c
Signed-off-by: Jagdish Tirumala <t.jag587@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Back in 2015 when irda was dropped from the driver imx1 was broken. This
change reintroduces the support for the third interrupt of the UART.
Fixes: afe9cbb1a6ad ("serial: imx: drop support for IRDA")
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Leonard Crestez <leonard.crestez@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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In commit 66cffd6daab7 ("b43: fix transmit failure when VT is switched"),
a condition is noted where the network controller needs to be reset. Note
that this situation happens when running the open-source firmware
(http://netweb.ing.unibs.it/~openfwwf/), plus a number of other special
conditions.
for a different card model, it is reported that this change breaks
operation running the proprietary firmware
(https://marc.info/?l=linux-wireless&m=153504546924558&w=2). Rather
than reverting the previous patch, the code is tweaked to avoid the
reset unless the open-source firmware is being used.
Fixes: 66cffd6daab7 ("b43: fix transmit failure when VT is switched")
Cc: Stable <stable@vger.kernel.org> # 4.18+
Cc: Taketo Kabe <kabe@sra-tohoku.co.jp>
Reported-and-tested-by: D. Prabhu <d.praabhu@gmail.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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Moving all the drivers that depend on the Port Controller
Manager under a new directory drivers/usb/typec/tcpm/ and
making Guenter Roeck the designated reviewer of that code.
Acked-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The debugfs needs to be initialized as the last step in
probe in this case. The struct dentry *rootdir can't be
pointing to anything unless driver probe really finishes
successfully.
It is also not necessary to clear the i2c clientdata if the
probe fails, so removing the extra label used for that.
Acked-by: Hans de Goede <hdegoede@redhat.com>
Tested-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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USB Type-C class driver now expects the muxes to be always
assigned to the ports and not controllers, so the
connections for the mux and fusb302 can be removed.
Acked-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Tested-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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It is not possible to use the parent of the port device when
requesting mux handles as the parent may be a multiport USB
Type-C or PD controller. The muxes must be assigned to the
ports, not the controllers.
This will also move the requesting of the muxes after the
port device is initialized.
Acked-by: Hans de Goede <hdegoede@redhat.com>
Tested-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Assigning the mux to the USB Type-C port on top of fusb302.
That will prepare this driver for the change in the USB
Type-C class code, where the class driver will assume the
muxes to be always assigned to the ports and not the
controllers.
Once the USB Type-C class driver has been updated, the
connections between the mux and fusb302 can be dropped.
Acked-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Tested-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Adding a connection for the DisplayPort alternate mode.
PI3USB30532 is used for muxing the port to DisplayPort on
CHT platforms. The connection allows the alternate mode
device to get handle to the mux, and therefore make it
possible to use the USB Type-C connector as DisplayPort.
Acked-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Tested-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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We can register all device connection descriptors with a
single call to device_connections_add().
Acked-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Tested-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The connections create clear dependency on the muxes.
fusb302 fails to probe unless we have the mux drivers
available.
Acked-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Tested-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Functions typec_mux_get() and typec_switch_get() already
make sure that the mux device reference count is
incremented, but the same must be done to the driver module
as well to prevent the drivers from being unloaded in the
middle of operation.
This fixes a potential "BUG: unable to handle kernel paging
request at ..." from happening.
Fixes: 93dd2112c7b2 ("usb: typec: mux: Get the mux identifier from function parameter")
Acked-by: Hans de Goede <hdegoede@redhat.com>
Tested-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Applying dynamic usbcore quirks in early booting when the slab is
not yet ready would cause kernel panic of null pointer dereference
because the quirk_count has been counted as 1 while the quirk_list
was failed to allocate.
i.e.,
[ 1.044970] BUG: unable to handle kernel NULL pointer dereference at (null)
[ 1.044995] IP: [<ffffffffb0953ec7>] usb_detect_quirks+0x88/0xd1
[ 1.045016] PGD 0
[ 1.045026] Oops: 0000 [#1] PREEMPT SMP
[ 1.046986] gsmi: Log Shutdown Reason 0x03
[ 1.046995] Modules linked in:
[ 1.047008] CPU: 0 PID: 81 Comm: kworker/0:3 Not tainted 4.4.154 #28
[ 1.047016] Hardware name: Google Coral/Coral, BIOS Google_Coral.10068.27.0 12/04/2017
[ 1.047028] Workqueue: usb_hub_wq hub_event
[ 1.047037] task: ffff88017a321c80 task.stack: ffff88017a384000
[ 1.047044] RIP: 0010:[<ffffffffb0953ec7>] [<ffffffffb0953ec7>] usb_detect_quirks+0x88/0xd1
To tackle this odd, let's balance the quirk_count to 0 when the kcalloc
call fails, and defer the quirk setting into a lower level callback
which ensures that the kernel memory management has been initialized.
Fixes: 027bd6cafd9a ("usb: core: Add "quirks" parameter for usbcore")
Signed-off-by: Harry Pan <harry.pan@intel.com>
Acked-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This fixes potential "BUG: unable to handle kernel paging
request at ..." from happening.
Fixes: fde0aa6c175a ("usb: common: Small class for USB role switches")
Cc: <stable@vger.kernel.org>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Tested-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Trivial fix to spelling mistake in dev_dbg message
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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There is code in the .remove() hook to handle the drvdata
being NULL, for good reasons: it is never set, so it will
always be NULL. As I moved code around, static checkers
start complaining.
Instead of this, make sure to always set it on successful
probe so we can always dereference it on the remove path.
Use the platform_device_[set|get]_drvdata() since this is
a platform device.
Fixes: ffa8a31b5b3b ("usb: host: fotg2: add silicon clock handling")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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R-Car Gen3 needs to enable clocks of both host and peripheral.
Since [eo]hci-platform disables the reset(s) when the drivers are
removed, renesas_usbhs driver doesn't work correctly. To fix this
issue, this patch adds multiple clocks management on this
renesas_usbhs driver.
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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R-Car Gen3 needs to deassert resets of both host and peripheral.
Since [eo]hci-platform is possible to assert the reset(s) when
the probing failed, renesas_usbhs driver doesn't work correctly
regardless of finished probing. To fix this issue, this patch adds
reset_control on this renesas_usbhs driver.
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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USB audio class 3.0 specification introduced many significant
changes like
- new power domains, support for LPM/L1
- new cluster descriptor
- new high capability and class-specific string descriptors
- BADD profiles
- ... and many other things (check spec from link below:
http://www.usb.org/developers/docs/devclass_docs/USB_Audio_v3.0.zip)
Now that UAC3 is supported in linux, choose UAC3
configuration for audio if the device supports it.
Selecting this configuration will enable the system to
save power by leveraging the new power domains and LPM L1
capability and also support new codec types and data formats
for consumer audio applications.
Signed-off-by: Saranya Gopal <saranya.gopal@intel.com>
Reviewed-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Add Device tree support.
Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Use a proper PHY driver, instead of hooks to a board support package.
Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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It's unused.
Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This is done do that it could be enabled alongside other platform EHCI
glue drivers on multiplatform kernels.
Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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As all the properties of the usbtmc driver can now be
controlled on a per file descriptor basis by ioctl functions
the sysfs interface is of limited use.
We are not aware about applications that are using the sysfs
parameter TermChar, TermCharEnabled or auto_abort.
Signed-off-by: Guido Kiener <guido.kiener@rohde-schwarz.com>
Reviewed-by: Steve Bayless <steve_bayless@keysight.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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