A call usb_put_phy(udc->transceiver) must be tested for a valid pointer.
Use an already existing test for usb_unregister_notifier call.
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Reported-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Petr Cvek <petr.cvek@tul.cz>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
We need to break from all cases if we want to treat
each one of them separately.
Reported-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Fixes: d2728fb3e0 ("usb: dwc3: omap: Pass VBUS and ID events transparently")
Cc: <stable@vger.kernel.org> #v4.8+
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
On TI platforms (dra7, am437x), the DWC3_DSTS_DEVCTRLHLT bit is not set
after the device controller is stopped via DWC3_DCTL_RUN_STOP.
If we don't disconnect and stop the gadget, it stops working after a
system resume with the trace below.
There is no point in preventing gadget disconnect and gadget stop during
system suspend/resume as we're going to suspend in any case, whether
DEVCTRLHLT timed out or not.
[ 141.727480] ------------[ cut here ]------------
[ 141.732349] WARNING: CPU: 1 PID: 2135 at drivers/usb/dwc3/gadget.c:2384 dwc3_stop_active_transfer.constprop.4+0xc4/0xe4 [dwc3]
[ 141.744299] Modules linked in: usb_f_ss_lb g_zero libcomposite xhci_plat_hcd xhci_hcd usbcore dwc3 evdev udc_core m25p80 usb_common spi_nor snd_soc_davinci_mcasp snd_soc_simple_card snd_soc_edma snd_soc_tlv3e
[ 141.792163] CPU: 1 PID: 2135 Comm: irq/456-dwc3 Not tainted 4.10.0-rc8 #1138
[ 141.799547] Hardware name: Generic DRA74X (Flattened Device Tree)
[ 141.805940] [<c01101b4>] (unwind_backtrace) from [<c010c31c>] (show_stack+0x10/0x14)
[ 141.814066] [<c010c31c>] (show_stack) from [<c04a0918>] (dump_stack+0xac/0xe0)
[ 141.821648] [<c04a0918>] (dump_stack) from [<c013708c>] (__warn+0xd8/0x104)
[ 141.828955] [<c013708c>] (__warn) from [<c0137164>] (warn_slowpath_null+0x20/0x28)
[ 141.836902] [<c0137164>] (warn_slowpath_null) from [<bf27784c>] (dwc3_stop_active_transfer.constprop.4+0xc4/0xe4 [dwc3])
[ 141.848329] [<bf27784c>] (dwc3_stop_active_transfer.constprop.4 [dwc3]) from [<bf27ab14>] (__dwc3_gadget_ep_disable+0x64/0x528 [dwc3])
[ 141.861034] [<bf27ab14>] (__dwc3_gadget_ep_disable [dwc3]) from [<bf27c27c>] (dwc3_gadget_ep_disable+0x3c/0xc8 [dwc3])
[ 141.872280] [<bf27c27c>] (dwc3_gadget_ep_disable [dwc3]) from [<bf23b428>] (usb_ep_disable+0x11c/0x18c [udc_core])
[ 141.883160] [<bf23b428>] (usb_ep_disable [udc_core]) from [<bf342774>] (disable_ep+0x18/0x54 [usb_f_ss_lb])
[ 141.893408] [<bf342774>] (disable_ep [usb_f_ss_lb]) from [<bf3437b0>] (disable_endpoints+0x18/0x50 [usb_f_ss_lb])
[ 141.904168] [<bf3437b0>] (disable_endpoints [usb_f_ss_lb]) from [<bf343814>] (disable_source_sink+0x2c/0x34 [usb_f_ss_lb])
[ 141.915771] [<bf343814>] (disable_source_sink [usb_f_ss_lb]) from [<bf329a9c>] (reset_config+0x48/0x7c [libcomposite])
[ 141.927012] [<bf329a9c>] (reset_config [libcomposite]) from [<bf329afc>] (composite_disconnect+0x2c/0x54 [libcomposite])
[ 141.938444] [<bf329afc>] (composite_disconnect [libcomposite]) from [<bf23d7dc>] (usb_gadget_udc_reset+0x10/0x34 [udc_core])
[ 141.950237] [<bf23d7dc>] (usb_gadget_udc_reset [udc_core]) from [<bf276d70>] (dwc3_gadget_reset_interrupt+0x64/0x698 [dwc3])
[ 141.962022] [<bf276d70>] (dwc3_gadget_reset_interrupt [dwc3]) from [<bf27952c>] (dwc3_thread_interrupt+0x618/0x1a3c [dwc3])
[ 141.973723] [<bf27952c>] (dwc3_thread_interrupt [dwc3]) from [<c01a7ce8>] (irq_thread_fn+0x1c/0x54)
[ 141.983215] [<c01a7ce8>] (irq_thread_fn) from [<c01a7fbc>] (irq_thread+0x120/0x1f0)
[ 141.991247] [<c01a7fbc>] (irq_thread) from [<c015ba14>] (kthread+0xf8/0x138)
[ 141.998641] [<c015ba14>] (kthread) from [<c01078f0>] (ret_from_fork+0x14/0x24)
[ 142.006213] ---[ end trace b4ecfe9f175b9a9c ]---
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
This reverts commit ac670a3a650b899fc020b81f63e810d06015b865.
This introduce bug we already fixed in
commit 53642399aa ("usb: gadget: f_fs: Fix wrong check on reserved1 wof OS_DESC_EXT_COMPAT")
Next FFS (adb) SS enumeration fail with Windows OS.
Signed-off-by: Janusz Dziedzic <januszx.dziedzic@linux.intel.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
'kbuf' is allocated just a few lines above using 'memdup_user()'.
If the 'if (dev->buf)' test fails, this memory is never released.
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
The debug output now contains the wrong variable, as seen from the compiler
warning:
drivers/usb/gadget/udc/atmel_usba_udc.c: In function 'usba_ep_enable':
drivers/usb/gadget/udc/atmel_usba_udc.c:632:550: error: 'ept_cfg' may be used uninitialized in this function [-Werror=maybe-uninitialized]
DBG(DBG_ERR, "%s: EPT_CFG = 0x%lx (maxpacket = %lu)\n",
This changes the debug output the same way as the other code.
Fixes: 741d2558bf ("usb: gadget: udc: atmel: Update endpoint allocation scheme")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
The utmi mode is unsigned according the dt-bindings.
Fix sparse issue (-Wtypesign):
drivers/usb/dwc3/dwc3-omap.c:391:50: warning: incorrect type in argument 3 (different signedness)
drivers/usb/dwc3/dwc3-omap.c:391:50: expected unsigned int [usertype] *out_value
drivers/usb/dwc3/dwc3-omap.c:391:50: got int *<noident>
Signed-off-by: Franck Demathieu <fdemathieu@gmail.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
When binding a gadget to a device, "name" is stored in gi->udc_name, but
this does not happen when unregistering and the string is leaked.
Signed-off-by: John Keeping <john@metanate.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Fix following build error for s390:
drivers/vfio/vfio_iommu_type1.c: In function 'vfio_iommu_type1_attach_group':
drivers/vfio/vfio_iommu_type1.c:1290:25: error: implicit declaration of function 'irq_domain_check_msi_remap'
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Mian Yousaf Kaukab <yousaf.kaukab@suse.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
The max and entry variables are unsigned according to the dt-bindings.
Fix following 3 sparse issues (-Wtypesign):
drivers/irqchip/irq-crossbar.c:222:52: warning: incorrect type in argument 3 (different signedness)
drivers/irqchip/irq-crossbar.c:222:52: expected unsigned int [usertype] *out_value
drivers/irqchip/irq-crossbar.c:222:52: got int *<noident>
drivers/irqchip/irq-crossbar.c:245:56: warning: incorrect type in argument 4 (different signedness)
drivers/irqchip/irq-crossbar.c:245:56: expected unsigned int [usertype] *out_value
drivers/irqchip/irq-crossbar.c:245:56: got int *<noident>
drivers/irqchip/irq-crossbar.c:263:56: warning: incorrect type in argument 4 (different signedness)
drivers/irqchip/irq-crossbar.c:263:56: expected unsigned int [usertype] *out_value
drivers/irqchip/irq-crossbar.c:263:56: got int *<noident>
Signed-off-by: Franck Demathieu <fdemathieu@gmail.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
This reverts commit 4fbac5206a.
This commit breaks g_webcam when used with uvc-gadget [1].
The user space application (e.g. uvc-gadget) is responsible for
sending response to UVC class specific requests on control endpoint
in uvc_send_response() in uvc_v4l2.c.
The bad commit was causing a duplicate response to be sent with
incorrect response data thus causing UVC probe to fail at the host
and broken control transfer endpoint at the gadget.
[1] - git://git.ideasonboard.org/uvc-gadget.git
Cc: <stable@vger.kernel.org> # v4.9+
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
After several hours of debugging this obviously bogus but elaborate
gcc-7.0.1 warning,
drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c: In function 'vchiq_complete_bulk':
drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c:603:4: error: argument 2 null where non-null expected [-Werror=nonnull]
memcpy((char *)page_address(pages[0]) +
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
pagelist->offset,
~~~~~~~~~~~~~~~~~
fragments,
~~~~~~~~~~
head_bytes);
~~~~~~~~~~~
In file included from include/linux/string.h:18:0,
from include/linux/bitmap.h:8,
from include/linux/cpumask.h:11,
from include/linux/interrupt.h:9,
from drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c:37:
arch/arm/include/asm/string.h:16:15: note: in a call to function 'memcpy' declared here
extern void * memcpy(void *, const void *, __kernel_size_t) __nocapture(2);
^~~~~~
I have concluded that gcc was technically right in the first place:
vchiq_complete_bulk is an externally visible function that calls
free_pagelist(), which in turn derives a pointer from the global
g_fragments_base variable.
g_fragments_base is initialized in vchiq_platform_init(), but
we only get there if of_property_read_u32() successfully reads the
cache line size. When CONFIG_OF is disabled, this always fails, and
g_fragments_base is guaranteed to be NULL when vchiq_complete_bulk()
gets called.
This adds a CONFIG_OF Kconfig dependency, which is also technically correct
but nonobvious, and thus seems like a good fit for the warning.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch changes pin names of AIO and XIRQ according to updated
specification.
Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Acked-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The get_direction callback function allows gpiolib to know the current
direction (input vs output) for a given GPIO.
This is particularly useful on ACPI systems, where the GPIOs are
configured only by firmware (typically UEFI), so the only way to
know the initial values to query the hardware directly. Without
this function, gpiolib thinks that all GPIOs are configured for
input.
Signed-off-by: Timur Tabi <timur@codeaurora.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
On Kernel 4.9, WARNINGs about doing DMA on stack are hit at
the dw2102 driver: one in su3000_power_ctrl() and the other in tt_s2_4600_frontend_attach().
Both were due to the use of buffers on the stack as parameters to
dvb_usb_generic_rw() and the resulting attempt to do DMA with them.
The device was non-functional as a result.
So, switch this driver over to use a buffer within the device state
structure, as has been done with other DVB-USB drivers.
Tested with TechnoTrend TT-connect S2-4600.
[mchehab@osg.samsung.com: fixed a warning at su3000_i2c_transfer() that
state var were dereferenced before check 'd']
Signed-off-by: Jonathan McDowell <noodles@earth.li>
Cc: <stable@vger.kernel.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
We have a big list of selects under CONFIG_PPC, and currently they're
completely unsorted. This means people tend to add new selects at the
bottom of the list, and so two commits which both add a new select will
often conflict.
Instead sort it alphabetically. This is nicer in and of itself, but also
means two commits that add a new select will have a greater chance of
not conflicting.
Add a note at the top and bottom asking people to keep it sorted.
And while we're here pad out the 'if' expressions to make them stand
out.
Suggested-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
It seems we didn't pay quite enough attention when testing the new cache
shape vectors, which means we didn't notice the bug where the vector for
the L1D was using the L1I values. Fix it, resulting in eg:
L1I cache size: 0x8000 32768B 32K
L1I line size: 0x80 8-way associative
L1D cache size: 0x10000 65536B 64K
L1D line size: 0x80 8-way associative
Fixes: 98a5f361b8 ("powerpc: Add new cache geometry aux vectors")
Cut-and-paste-bug-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Badly-reviewed-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Very common PCIe ethernet card. Already enabled in i386_defconfig.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Konstantin Khlebnikov <koct9i@gmail.com>
Link: http://lkml.kernel.org/r/20170306085748.85957-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Without the parameter reboot=a, ASUS EeeBook X205TA/W will hang
when it should reboot. This adds the appropriate quirk, thus
fixing the problem.
Signed-off-by: Matjaz Hegedic <matjaz.hegedic@gmail.com>
Link: http://lkml.kernel.org/r/1488737804-20681-1-git-send-email-matjaz.hegedic@gmail.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
I see a panic in early boot when building with a recent gcc toolchain.
The issue is a divide by zero, which is undefined. Older toolchains
let us get away with it:
int foo(int a) { return a / 0; }
foo:
li 9,0
divw 3,3,9
extsw 3,3
blr
But newer ones catch it:
foo:
trap
Add a check to avoid the divide by zero.
Fixes: e2827fe5c1 ("powerpc/64: Clean up ppc64_caches using a struct per cache")
Signed-off-by: Anton Blanchard <anton@samba.org>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
On POWER9 the ibm,client-architecture-support (CAS) negotiation process
has been updated to change how the host to guest negotiation is done for
the new hash/radix mmu as well as the nest mmu, process tables and guest
translation shootdown (GTSE).
This is documented in the unreleased PAPR ACR "CAS option vector
additions for P9".
The host tells the guest which options it supports in
ibm,arch-vec-5-platform-support. The guest then chooses a subset of these
to request in the CAS call and these are agreed to in the
ibm,architecture-vec-5 property of the chosen node.
Thus we read ibm,arch-vec-5-platform-support and make our selection before
calling CAS. We then parse the ibm,architecture-vec-5 property of the
chosen node to check whether we should run as hash or radix.
ibm,arch-vec-5-platform-support format:
index value pairs: <index, val> ... <index, val>
index: Option vector 5 byte number
val: Some representation of supported values
Signed-off-by: Suraj Jitindar Singh <sjitindarsingh@gmail.com>
Acked-by: Paul Mackerras <paulus@ozlabs.org>
[mpe: Don't print about unknown options, be consistent with OV5_FEAT]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
On POWER9 the hypervisor requires the guest to decide whether it would
like to use a hash or radix mmu model at the time it calls
ibm,client-architecture-support (CAS) based on what the hypervisor has
said it's allowed to do. It is possible to disable radix by passing
"disable_radix" on the command line. The next patch will add support for
the new CAS format, thus we need to parse the command line before calling
CAS so we can correctly select which mmu we would like to use.
Signed-off-by: Suraj Jitindar Singh <sjitindarsingh@gmail.com>
Reviewed-by: Paul Mackerras <paulus@ozlabs.org>
Acked-by: Balbir Singh <bsingharora@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
The CPPR (Current Processor Priority Register) of a XICS interrupt
presentation controller contains a value N, such that only interrupts
with a priority "more favoured" than N will be received by the CPU,
where "more favoured" means "less than". So if the CPPR has the value 5
then only interrupts with a priority of 0-4 inclusive will be received.
In theory the CPPR can support a value of 0 to 255 inclusive.
In practice Linux only uses values of 0, 4, 5 and 0xff. Setting the CPPR
to 0 rejects all interrupts, setting it to 0xff allows all interrupts.
The values 4 and 5 are used to differentiate IPIs from external
interrupts. Setting the CPPR to 5 allows IPIs to be received but not
external interrupts.
The CPPR emulation in the OPAL XICS implementation only directly
supports priorities 0 and 0xff. All other priorities are considered
equivalent, and mapped to a single priority value internally. This means
when using icp-opal we can not allow IPIs but not externals.
This breaks Linux's use of priority values when a CPU is hot unplugged.
After migrating IRQs away from the CPU that is being offlined, we set
the priority to 5, meaning we still want the offline CPU to receive
IPIs. But the effect of the OPAL XICS emulation's use of a single
priority value is that all interrupts are rejected by the CPU. With the
CPU offline, and not receiving IPIs, we may not be able to wake it up to
bring it back online.
The first part of the fix is in icp_opal_set_cpu_priority(). CPPR values
of 0 to 4 inclusive will correctly cause all interrupts to be rejected,
so we pass those CPPR values through to OPAL. However if we are called
with a CPPR of 5 or greater, the caller is expecting to be able to allow
IPIs but not external interrupts. We know this doesn't work, so instead
of rejecting all interrupts we choose the opposite which is to allow all
interrupts. This is still not correct behaviour, but we know for the
only existing caller (xics_migrate_irqs_away()), that it is the better
option.
The other part of the fix is in xics_migrate_irqs_away(). Instead of
setting priority (CPPR) to 0, and then back to 5 before migrating IRQs,
we migrate the IRQs before setting the priority back to 5. This should
have no effect on an ICP backend with a working set_priority(), and on
icp-opal it means we will keep all interrupts blocked until after we've
finished doing the IRQ migration. Additionally we wait for 5ms after
doing the migration to make sure there are no IRQs in flight.
Fixes: d74361881f ("powerpc/xics: Add ICP OPAL backend")
Cc: stable@vger.kernel.org # v4.8+
Suggested-by: Michael Ellerman <mpe@ellerman.id.au>
Reported-by: Vaidyanathan Srinivasan <svaidy@linux.vnet.ibm.com>
Tested-by: Vaidyanathan Srinivasan <svaidy@linux.vnet.ibm.com>
Signed-off-by: Balbir Singh <bsingharora@gmail.com>
[mpe: Rewrote comments and change log, change delay to 5ms]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Our GICv3 emulation always presents ICC_SRE_EL1 with DIB/DFB set to
zero, which implies that there is a way to bypass the GIC and
inject raw IRQ/FIQ by driving the CPU pins.
Of course, we don't allow that when the GIC is configured, but
we fail to indicate that to the guest. The obvious fix is to
set these bits (and never let them being changed again).
Reported-by: Peter Maydell <peter.maydell@linaro.org>
Acked-by: Christoffer Dall <cdall@linaro.org>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
When invalidating guest TLBs, special care must be taken to
actually shoot the guest TLBs and not the host ones if we're
running on a VHE system. This is controlled by the HCR_EL2.TGE
bit, which we forget to clear before invalidating TLBs.
Address the issue by introducing two wrappers (__tlb_switch_to_guest
and __tlb_switch_to_host) that take care of both the VTTBR_EL2
and HCR_EL2.TGE switching.
Reported-by: Tomasz Nowicki <tnowicki@caviumnetworks.com>
Tested-by: Tomasz Nowicki <tnowicki@caviumnetworks.com>
Reviewed-by: Christoffer Dall <cdall@linaro.org>
Cc: stable@vger.kernel.org
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Per PCI specification, Configuration Register has different types (RO,
RW, RW1C, Rsvd). For RO Register bits are read-only and cannot be
altered by software. For RW1C Register bits indicate status when read.
A Set bit indicates a status event which is Cleared by writing a 1b.
Writing a 0b to RW1C bits has no effect. Reserved Register is for future
implementations, and they are read-only and must return zero when read.
Current vGPU configuration write emulation just copy the value as it is.
So we haven't emulated RO, RW1C and Rsvd Registers correctly. This patch
is following the Spec to correct emulation logic. We add a function
vgpu_cfg_mem_write to wrap the access to vGPU configuration memory.
The write function uses a RW Register bitmap to avoid RO bits be
overwritten, and emulate RW1C behavior for the particular status Register.
v2:
new = src[i] --> new = src[i] & mask (zhenyu)
Signed-off-by: Changbin Du <changbin.du@intel.com>
Cc: Xiaoguang Chen <xiaoguang.chen@intel.com>
Cc: Zhiyuan Lv <zhiyuan.lv@intel.com>
Cc: Min He <min.he@intel.com>
Reviewed-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Currently i915 has a request replay mechanism which can make sure
the request can be replayed after a GPU reset. With this mechanism,
gvt should wait until the GVT request seqno passed before complete
the current workload. So that there should be a context switch interrupt
come before gvt free the workload. In this way, workload lifecylce
matches with the i915 request lifecycle. The workload can only be freed
after the request is completed.
v2: use gvt_dbg_sched instead of gvt_err to print when wait again
Signed-off-by: Chuanxiao Dong <chuanxiao.dong@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
A recent change claimed to fix an off-by-one error in the OOB-port
completion handler, but instead introduced such an error. This could
specifically led to modem-status changes going unnoticed, effectively
breaking TIOCMGET.
Note that the offending commit fixes a loop-condition underflow and is
marked for stable, but should not be backported without this fix.
Reported-by: Ben Hutchings <ben@decadent.org.uk>
Fixes: 2d38088921 ("USB: serial: digi_acceleport: fix OOB data sanity
check")
Cc: stable <stable@vger.kernel.org> # v2.6.30: 2d38088921
Signed-off-by: Johan Hovold <johan@kernel.org>
If request was already started, this means we had to
stop the transfer. With that we also need to ignore
all TRBs used by the request, however TRBs can only
be modified after completion of END_TRANSFER
command. So what we have to do here is wait for
END_TRANSFER completion and only after that jump
over TRBs by clearing HWO and incrementing dequeue
pointer.
Note that we have 2 possible types of transfers
here:
i) Linear buffer request
ii) SG-list based request
SG-list based requests will have r->num_pending_sgs
set to a valid number (> 0). Linear requests,
normally use a single TRB.
For each of these two cases, if r->unaligned flag is
set, one extra TRB has been used to align transfer
size to wMaxPacketSize.
All of these cases need to be taken into
consideration so we don't mess up our TRB ring
pointers.
Tested-by: Janusz Dziedzic <januszx.dziedzic@intel.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
If we're dealing with SuperSpeed endpoints, we need
to make sure to pass along the companion descriptor
and initialize fields needed by the Gadget
API. Eventually, f_fs.c should be converted to use
config_ep_by_speed() like all other functions,
though.
Cc: <stable@vger.kernel.org>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Some gadget drivers are bad, bad boys. We notice
that ADB was passing bad Burst Size which caused top
bits of param0 to be overwritten which confused DWC3
when running this command.
In order to avoid future issues, we're going to make
sure values passed by macros are always safe for the
controller. Note that ADB still needs a fix to *not*
pass bad values.
Cc: <stable@vger.kernel.org> # v3.2+
Reported-by: Mohamed Abbas <mohamed.abbas@intel.com>
Sugested-by: Adam Andruszak <adam.andruszak@intel.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Rotel RSX-1058 is a receiver with 4 HDMI inputs and a HDMI output, all
1.1.
When a sink that supports deep color is connected to the output, the
receiver will send EDIDs that advertise this capability, even if it
isn't possible with HDMI versions earlier than 1.3.
Currently the kernel is assuming that deep color is possible and the
sink displays an error.
This quirk will make sure that deep color isn't used with this
particular receiver.
Fixes: 7a0baa6234 ("Revert "drm/i915: Disable 12bpc hdmi for now"")
Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170220152545.13153-1-tomeu.vizoso@collabora.com
Cc: stable@vger.kernel.org
Cc: Matt Horan <matt@matthoran.com>
Tested-by: Matt Horan <matt@matthoran.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=99869
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
If the current P-state selection algorithm is set to "performance"
in intel_pstate_set_policy(), the limits may be initialized from
scratch, but only if no_turbo is not set and the maximum frequency
allowed for the given CPU (i.e. the policy object representing it)
is at least equal to the max frequency supported by the CPU. In all
of the other cases, the limits will not be updated.
For example, the following can happen:
# cat intel_pstate/status
active
# echo performance > cpufreq/policy0/scaling_governor
# cat intel_pstate/min_perf_pct
100
# echo 94 > intel_pstate/min_perf_pct
# cat intel_pstate/min_perf_pct
100
# cat cpufreq/policy0/scaling_max_freq
3100000
echo 3000000 > cpufreq/policy0/scaling_max_freq
# cat intel_pstate/min_perf_pct
94
# echo 95 > intel_pstate/min_perf_pct
# cat intel_pstate/min_perf_pct
95
That is confusing for two reasons. First, the initial attempt to
change min_perf_pct to 94 seems to have no effect, even though
setting the global limits should always work. Second, after
changing scaling_max_freq for policy0 the global min_perf_pct
attribute shows 94, even though it should have not been affected
by that operation in principle.
Moreover, the final attempt to change min_perf_pct to 95 worked
as expected, because scaling_max_freq for the only policy with
scaling_governor equal to "performance" was different from the
maximum at that time.
To make all that confusion go away, modify intel_pstate_set_policy()
so that it doesn't reinitialize the limits at all.
At the same time, change intel_pstate_set_performance_limits() to
set min_sysfs_pct to 100 in the "performance" limits set so that
switching the P-state selection algorithm to "performance" causes
intel_pstate/min_perf_pct in sysfs to go to 100 (or whatever value
min_sysfs_pct in the "performance" limits is set to later).
That requires per-CPU limits to be initialized explicitly rather
than by copying the global limits to avoid setting min_sysfs_pct
in the per-CPU limits to 100.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
The code added to intel_pstate_verify_policy() by commit 1443ebbacf
(cpufreq: intel_pstate: Fix sysfs limits enforcement for performance
policy) should use perf_limits instead of limits, because otherwise
setting global limits via sysfs may affect policies inconsistently.
For example, in the sequence of shell commands below, the
scaling_min_freq attribute for policy1 and policy2 should be
affected in the same way, because scaling_governor is set in
the same way for both of them:
# cat cpufreq/policy1/scaling_governor
powersave
# cat cpufreq/policy2/scaling_governor
powersave
# echo performance > cpufreq/policy0/scaling_governor
# echo 94 > intel_pstate/min_perf_pct
# cat cpufreq/policy0/scaling_min_freq
2914000
# cat cpufreq/policy1/scaling_min_freq
2914000
# cat cpufreq/policy2/scaling_min_freq
800000
The are affected differently, because intel_pstate_verify_policy()
is invoked with limits set to &performance_limits (left behind by
policy0) for policy1 and with limits set to &powersave_limits (left
behind by policy1) for policy2. Since perf_limits is set to the
set of limits matching the policy being updated, using it instead
of limits fixes the inconsistency.
Fixes: 1443ebbacf (cpufreq: intel_pstate: Fix sysfs limits enforcement for performance policy)
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Commit 111b8b3fe4 (cpufreq: intel_pstate: Always keep all
limits settings in sync) changed intel_pstate to invoke
cpufreq_update_policy() for every registered CPU on global sysfs
attributes updates, but that led to undesirable effects in the
active mode if the "performance" P-state selection algorithm is
configufred for one CPU and the "powersave" one is chosen for
all of the other CPUs.
Namely, in that case, the following is possible:
# cd /sys/devices/system/cpu/
# cat intel_pstate/max_perf_pct
100
# cat intel_pstate/min_perf_pct
26
# echo performance > cpufreq/policy0/scaling_governor
# cat intel_pstate/max_perf_pct
100
# cat intel_pstate/min_perf_pct
100
# echo 94 > intel_pstate/min_perf_pct
# cat intel_pstate/min_perf_pct
26
The reason why this happens is because intel_pstate attempts to
maintain two sets of global limits in the active mode, one for
the "performance" P-state selection algorithm and one for the
"powersave" P-state selection algorithm, but the P-state selection
algorithms are set per policy, so the global limits cannot reflect
all of them at the same time if they are different for different
policies.
In the particular situation above, the attempt to change
min_perf_pct to 94 caused cpufreq_update_policy() to be run
for a CPU with the "powersave" P-state selection algorithm
and intel_pstate_set_policy() called by it silently switched the
global limits to the "powersave" set which finally was reflected
by the sysfs interface.
To prevent that from happening, modify intel_pstate_update_policies()
to always switch back to the set of limits that was used right before
it has been invoked.
Fixes: 111b8b3fe4 (cpufreq: intel_pstate: Always keep all limits settings in sync)
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Add the "cpufreq.off=1" cmdline option.
At boot-time, this allows a user to request CONFIG_CPU_FREQ=n
behavior from a kernel built with CONFIG_CPU_FREQ=y.
This is analogous to the existing "cpuidle.off=1" option
and CONFIG_CPU_IDLE=y
This capability is valuable when we need to debug end-user
issues in the BIOS or in Linux. It is also convenient
for enabling comparisons, which may otherwise require a new kernel,
or help from BIOS SETUP, which may be buggy or unavailable.
Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
get_next_freq() uses sg_cpu only to get sg_policy, which the callers of
get_next_freq() already have. Pass sg_policy instead of sg_cpu to
get_next_freq(), to make it more efficient.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
cached_raw_freq applies to the entire cpufreq policy and not individual
CPUs. Apart from wasting per-cpu memory, it is actually wrong to keep it
in struct sugov_cpu as we may end up comparing next_freq with a stale
cached_raw_freq of a random CPU.
Move cached_raw_freq to struct sugov_policy.
Fixes: 5cbea46984 (cpufreq: schedutil: map raw required frequency to driver frequency)
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Pull networking fixes from David Miller:
1) Fix double-free in batman-adv, from Sven Eckelmann.
2) Fix packet stats for fast-RX path, from Joannes Berg.
3) Netfilter's ip_route_me_harder() doesn't handle request sockets
properly, fix from Florian Westphal.
4) Fix sendmsg deadlock in rxrpc, from David Howells.
5) Add missing RCU locking to transport hashtable scan, from Xin Long.
6) Fix potential packet loss in mlxsw driver, from Ido Schimmel.
7) Fix race in NAPI handling between poll handlers and busy polling,
from Eric Dumazet.
8) TX path in vxlan and geneve need proper RCU locking, from Jakub
Kicinski.
9) SYN processing in DCCP and TCP need to disable BH, from Eric
Dumazet.
10) Properly handle net_enable_timestamp() being invoked from IRQ
context, also from Eric Dumazet.
11) Fix crash on device-tree systems in xgene driver, from Alban Bedel.
12) Do not call sk_free() on a locked socket, from Arnaldo Carvalho de
Melo.
13) Fix use-after-free in netvsc driver, from Dexuan Cui.
14) Fix max MTU setting in bonding driver, from WANG Cong.
15) xen-netback hash table can be allocated from softirq context, so use
GFP_ATOMIC. From Anoob Soman.
16) Fix MAC address change bug in bgmac driver, from Hari Vyas.
17) strparser needs to destroy strp_wq on module exit, from WANG Cong.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (69 commits)
strparser: destroy workqueue on module exit
sfc: fix IPID endianness in TSOv2
sfc: avoid max() in array size
rds: remove unnecessary returned value check
rxrpc: Fix potential NULL-pointer exception
nfp: correct DMA direction in XDP DMA sync
nfp: don't tell FW about the reserved buffer space
net: ethernet: bgmac: mac address change bug
net: ethernet: bgmac: init sequence bug
xen-netback: don't vfree() queues under spinlock
xen-netback: keep a local pointer for vif in backend_disconnect()
netfilter: nf_tables: don't call nfnetlink_set_err() if nfnetlink_send() fails
netfilter: nft_set_rbtree: incorrect assumption on lower interval lookups
netfilter: nf_conntrack_sip: fix wrong memory initialisation
can: flexcan: fix typo in comment
can: usb_8dev: Fix memory leak of priv->cmd_msg_buffer
can: gs_usb: fix coding style
can: gs_usb: Don't use stack memory for USB transfers
ixgbe: Limit use of 2K buffers on architectures with 256B or larger cache lines
ixgbe: update the rss key on h/w, when ethtool ask for it
...
PPC:
* correct assumption about ASDR on POWER9
* fix MMIO emulation on POWER9
x86:
* add a simple test for ioperm
* cleanup TSS
(going through KVM tree as the whole undertaking was caused by VMX's
use of TSS)
* fix nVMX interrupt delivery
* fix some performance counters in the guest
And two cleanup patches.
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Merge tag 'kvm-4.11-2' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull more KVM updates from Radim Krčmář:
"Second batch of KVM changes for the 4.11 merge window:
PPC:
- correct assumption about ASDR on POWER9
- fix MMIO emulation on POWER9
x86:
- add a simple test for ioperm
- cleanup TSS (going through KVM tree as the whole undertaking was
caused by VMX's use of TSS)
- fix nVMX interrupt delivery
- fix some performance counters in the guest
... and two cleanup patches"
* tag 'kvm-4.11-2' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: nVMX: Fix pending events injection
x86/kvm/vmx: remove unused variable in segment_base()
selftests/x86: Add a basic selftest for ioperm
x86/asm: Tidy up TSS limit code
kvm: convert kvm.users_count from atomic_t to refcount_t
KVM: x86: never specify a sample period for virtualized in_tx_cp counters
KVM: PPC: Book3S HV: Don't use ASDR for real-mode HPT faults on POWER9
KVM: PPC: Book3S HV: Fix software walk of guest process page tables
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Merge tag 'docs-4.11-fixes' of git://git.lwn.net/linux
Pull documentation fixes from Jonathan Corbet:
"A few fixes for the docs tree, including one for a 4.11 build
regression"
* tag 'docs-4.11-fixes' of git://git.lwn.net/linux:
Documentation/sphinx: fix primary_domain configuration
docs: Fix htmldocs build failure
doc/ko_KR/memory-barriers: Update control-dependencies section
pcieaer doc: update the link
Documentation: Update path to sysrq.txt
Here are a few small staging and IIO driver fixes for issues that showed
up after the big set if changes you merged last week.
Nothing major, just small bugs resolved in some IIO drivers, a lustre
allocation fix, and some RaspberryPi driver fixes for reported problems,
as well as a MAINTAINERS entry update.
All of these have been in linux-next for a week with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-4.11-rc1-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging/IIO driver fixes from Greg KH:
"Here are a few small staging and IIO driver fixes for issues that
showed up after the big set if changes you merged last week.
Nothing major, just small bugs resolved in some IIO drivers, a lustre
allocation fix, and some RaspberryPi driver fixes for reported
problems, as well as a MAINTAINERS entry update.
All of these have been in linux-next for a week with no reported
issues"
* tag 'staging-4.11-rc1-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
staging: fsl-mc: fix warning in DT ranges parser
MAINTAINERS: Remove Noralf Trønnes as fbtft maintainer
staging: vchiq_2835_arm: Make cache-line-size a required DT property
staging: bcm2835/mmal-vchiq: unlock on error in buffer_from_host()
staging/lustre/lnet: Fix allocation size for sv_cpt_data
iio: adc: xilinx: Fix error handling
iio: 104-quad-8: Fix off-by-one error when addressing flag register
iio: adc: handle unknow of_device_id data
Pull crypto fixes from Herbert Xu:
- vmalloc stack regression in CCM
- Build problem in CRC32 on ARM
- Memory leak in cavium
- Missing Kconfig dependencies in atmel and mediatek
- XTS Regression on some platforms (s390 and ppc)
- Memory overrun in CCM test vector
* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
crypto: vmx - Use skcipher for xts fallback
crypto: vmx - Use skcipher for cbc fallback
crypto: testmgr - Pad aes_ccm_enc_tv_template vector
crypto: arm/crc32 - add build time test for CRC instruction support
crypto: arm/crc32 - fix build error with outdated binutils
crypto: ccm - move cbcmac input off the stack
crypto: xts - Propagate NEED_FALLBACK bit
crypto: api - Add crypto_requires_off helper
crypto: atmel - CRYPTO_DEV_MEDIATEK should depend on HAS_DMA
crypto: atmel - CRYPTO_DEV_ATMEL_TDES and CRYPTO_DEV_ATMEL_SHA should depend on HAS_DMA
crypto: cavium - fix leak on curr if curr->head fails to be allocated
crypto: cavium - Fix couple of static checker errors
Paul's patch to fix checksum folding, commit b492f7e4e0 ("powerpc/64:
Fix checksum folding in csum_tcpudp_nofold and ip_fast_csum_nofold")
missed a case in csum_add(). Fix it.
Signed-off-by: Shile Zhang <shile.zhang@nokia.com>
Acked-by: Paul Mackerras <paulus@ozlabs.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
The recent commit to allow calling OPAL calls in real mode, commit
ab9bad0ead ("powerpc/powernv: Remove separate entry for OPAL real mode
calls"), introduced a bug when CONFIG_JUMP_LABEL=n.
The commit moved the "mfmsr r12" prior to the call to OPAL_BRANCH, but
we missed that OPAL_BRANCH clobbers r12 when jump labels are disabled.
This leads to us using the tracepoint refcount as the MSR value,
typically zero, and saving that into PACASAVEDMSR. When we return from
OPAL we use that value as the MSR value for rfid, meaning we switch to
32-bit BE real mode - hilarity ensues.
Fix it by using r11 in OPAL_BRANCH, which is not live at the time the
macro is used in OPAL_CALL.
Fixes: ab9bad0ead ("powerpc/powernv: Remove separate entry for OPAL real mode calls")
Suggested-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Pull misc final vfs updates from Al Viro:
"A few unrelated patches that got beating in -next.
Everything else will have to go into the next window ;-/"
* 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
hfs: fix hfs_readdir()
selftest for default_file_splice_read() infoleak
9p: constify ->d_name handling
This is the set of stuff that didn't quite make the initial pull and a
set of fixes for stuff which did. The new stuff is basically lpfc
(nvme), qedi and aacraid. The fixes cover a lot of previously
submitted stuff, the most important of which probably covers some of
the failing irq vectors allocation and other fallout from having the
SCSI command allocated as part of the block allocation functions.
Signed-off-by: James E.J. Bottomley <jejb@linux.vnet.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 stuff that didn't quite make the initial pull and a
set of fixes for stuff which did.
The new stuff is basically lpfc (nvme), qedi and aacraid. The fixes
cover a lot of previously submitted stuff, the most important of which
probably covers some of the failing irq vectors allocation and other
fallout from having the SCSI command allocated as part of the block
allocation functions"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (59 commits)
scsi: qedi: Fix memory leak in tmf response processing.
scsi: aacraid: remove redundant zero check on ret
scsi: lpfc: use proper format string for dma_addr_t
scsi: lpfc: use div_u64 for 64-bit division
scsi: mac_scsi: Fix MAC_SCSI=m option when SCSI=m
scsi: cciss: correct check map error.
scsi: qla2xxx: fix spelling mistake: "seperator" -> "separator"
scsi: aacraid: Fixed expander hotplug for SMART family
scsi: mpt3sas: switch to pci_alloc_irq_vectors
scsi: qedf: fixup compilation warning about atomic_t usage
scsi: remove scsi_execute_req_flags
scsi: merge __scsi_execute into scsi_execute
scsi: simplify scsi_execute_req_flags
scsi: make the sense header argument to scsi_test_unit_ready mandatory
scsi: sd: improve TUR handling in sd_check_events
scsi: always zero sshdr in scsi_normalize_sense
scsi: scsi_dh_emc: return success in clariion_std_inquiry()
scsi: fix memory leak of sdpk on when gd fails to allocate
scsi: sd: make sd_devt_release() static
scsi: qedf: Add QLogic FastLinQ offload FCoE driver framework.
...
Fixes: 43a0c6751a ("strparser: Stream parser for messages")
Cc: Tom Herbert <tom@herbertland.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
