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Greg Kroah-Hartman 6844dc4272 USB-serial fixes for v4.17-rc4
Here's a fix for a long-standing issue in the visor driver, which could
 have security implications. Included is also a new modem device id.
 
 Both commits have been in linux-next for a couple of days with no
 reported issues.
 
 Signed-off-by: Johan Hovold <johan@kernel.org>
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Merge tag 'usb-serial-4.17-rc4' of https://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial into usb-linus

Johan writes:

USB-serial fixes for v4.17-rc4

Here's a fix for a long-standing issue in the visor driver, which could
have security implications. Included is also a new modem device id.

Both commits have been in linux-next for a couple of days with no
reported issues.

Signed-off-by: Johan Hovold <johan@kernel.org>
2018-05-04 14:38:32 -07:00
Greg Kroah-Hartman 43b78f1155 Revert "usb: host: ehci: Use dma_pool_zalloc()"
This reverts commit 22072e83eb as it is
broken.

Alan writes:
	What you can't see just from reading the patch is that in both
	cases (ehci->itd_pool and ehci->sitd_pool) there are two
	allocation paths -- the two branches of an "if" statement -- and
	only one of the paths calls dma_pool_[z]alloc.  However, the
	memset is needed for both paths, and so it can't be eliminated.
	Given that it must be present, there's no advantage to calling
	dma_pool_zalloc rather than dma_pool_alloc.

Reported-by: Erick Cafferata <erick@cafferata.me>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Souptick Joarder <jrdr.linux@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-05-04 14:35:12 -07:00
Heikki Krogerus 1a2f474d32 usb: typec: tps6598x: handle block reads separately with plain-I2C adapters
If the I2C adapter that the PD controller is attached to
does not support SMBus protocol, the driver needs to handle
block reads separately. The first byte returned in block
read protocol will show the total number of bytes. It needs
to be stripped away.

This is handled separately in the driver only because right
now we have no way of requesting the used protocol with
regmap-i2c. This is in practice a workaround for what is
really a problem in regmap-i2c. The other option would have
been to register custom regmap, or not use regmap at all,
however, since the solution is very simple, I choose to use
it in this case for convenience. It is easy to remove once
we figure out how to handle this kind of cases in
regmap-i2c.

Fixes: 0a4c005bd1 ("usb: typec: driver for TI TPS6598x USB Power Delivery controllers")
Reviewed-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>
2018-05-03 10:55:31 -07:00
Heikki Krogerus 5671a4608c usb: typec: tcpm: Release the role mux when exiting
The ref count for the USB role switch device must be
released after we are done using the switch.

Fixes: c6962c2972 ("usb: typec: tcpm: Set USB role switch to device mode when configured as such")
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-05-03 10:55:27 -07:00
Alan Stern fb5ee84ea7 USB: Accept bulk endpoints with 1024-byte maxpacket
Some non-compliant high-speed USB devices have bulk endpoints with a
1024-byte maxpacket size.  Although such endpoints don't work with
xHCI host controllers, they do work with EHCI controllers.  We used to
accept these invalid sizes (with a warning), but we no longer do
because of an unintentional change introduced by commit aed9d65ac3
("USB: validate wMaxPacketValue entries in endpoint descriptors").

This patch restores the old behavior, so that people with these
peculiar devices can use them without patching their kernels by hand.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Suggested-by: Elvinas <elvinas@veikia.lt>
Fixes: aed9d65ac3 ("USB: validate wMaxPacketValue entries in endpoint descriptors")
CC: <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-05-03 10:16:38 -07:00
Mathias Nyman 44a182b9d1 xhci: Fix use-after-free in xhci_free_virt_device
KASAN found a use-after-free in xhci_free_virt_device+0x33b/0x38e
where xhci_free_virt_device() sets slot id to 0 if udev exists:
if (dev->udev && dev->udev->slot_id)
	dev->udev->slot_id = 0;

dev->udev will be true even if udev is freed because dev->udev is
not set to NULL.

set dev->udev pointer to NULL in xhci_free_dev()

The original patch went to stable so this fix needs to be applied
there as well.

Fixes: a400efe455 ("xhci: zero usb device slot_id member when disabling and freeing a xhci slot")
Cc: <stable@vger.kernel.org>
Reported-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-05-03 08:55:32 -07:00
Greg Kroah-Hartman 4842ed5bfc USB: serial: visor: handle potential invalid device configuration
If we get an invalid device configuration from a palm 3 type device, we
might incorrectly parse things, and we have the potential to crash in
"interesting" ways.

Fix this up by verifying the size of the configuration passed to us by
the device, and only if it is correct, will we handle it.

Note that this also fixes an information leak of slab data.

Reported-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Andrey Konovalov <andreyknvl@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[ johan: add comment about the info leak ]
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
2018-05-02 09:37:19 +02:00
SZ Lin (林上智) 4205cb01f6 USB: serial: option: adding support for ublox R410M
This patch adds support for ublox R410M PID 0x90b2 USB modem to option
driver, this module supports LTE Cat M1 / NB1.

Interface layout:
0: QCDM/DIAG
1: ADB
2: AT
3: RMNET

Signed-off-by: SZ Lin (林上智) <sz.lin@moxa.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
2018-05-02 09:15:22 +02:00
Bin Liu 9aea9b6cc7 usb: musb: trace: fix NULL pointer dereference in musb_g_tx()
The usb_request pointer could be NULL in musb_g_tx(), where the
tracepoint call would trigger the NULL pointer dereference failure when
parsing the members of the usb_request pointer.

Move the tracepoint call to where the usb_request pointer is already
checked to solve the issue.

Fixes: fc78003e53 ("usb: musb: gadget: add usb-request tracepoints")
Cc: stable@vger.kernel.org # v4.8+
Signed-off-by: Bin Liu <b-liu@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-04-30 09:52:17 -07:00
Bin Liu 2b63f1329d usb: musb: host: fix potential NULL pointer dereference
musb_start_urb() doesn't check the pass-in parameter if it is NULL.  But
in musb_bulk_nak_timeout() the parameter passed to musb_start_urb() is
returned from first_qh(), which could be NULL.

So wrap the musb_start_urb() call here with a if condition check to
avoid the potential NULL pointer dereference.

Fixes: f283862f3b ("usb: musb: NAK timeout scheme on bulk TX endpoint")
Cc: stable@vger.kernel.org # v3.7+
Signed-off-by: Bin Liu <b-liu@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-04-30 09:52:17 -07:00
Greg Kroah-Hartman 328da89950 usb: fixes for v4.17-rc3
Not much this time around: A list_del corruption on dwc3_ep_dequeue(),
 sparse warning fix also on dwc3, build issues with f_phonet.
 
 Apart from these three, some other minor fixes.
 
 Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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Merge tag 'fixes-for-v4.17-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-linus

Felipe writes:

usb: fixes for v4.17-rc3

Not much this time around: A list_del corruption on dwc3_ep_dequeue(),
sparse warning fix also on dwc3, build issues with f_phonet.

Apart from these three, some other minor fixes.

Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2018-04-30 08:49:58 -07:00
Greg Kroah-Hartman 573a094873 USB-serial fixes for v4.17-rc3
Here are a few device ids for -rc3, including a new "simple driver".
 
 All have been in linux-next with no reported issues.
 
 Signed-off-by: Johan Hovold <johan@kernel.org>
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Merge tag 'usb-serial-4.17-rc3' of https://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial into usb-linus

Johan writes:

USB-serial fixes for v4.17-rc3

Here are a few device ids for -rc3, including a new "simple driver".

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

Signed-off-by: Johan Hovold <johan@kernel.org>
2018-04-26 19:29:24 +02:00
Mayank Rana 96bd39df29 usb: dwc3: gadget: Fix list_del corruption in dwc3_ep_dequeue
dwc3_ep_dequeue() waits for completion of End Transfer command using
wait_event_lock_irq(), which will release the dwc3->lock while waiting
and reacquire after completion. This allows a potential race condition
with ep_disable() which also removes all requests from started_list
and pending_list.

The check for NULL r->trb should catch this but currently it exits to
the wrong 'out1' label which calls dwc3_gadget_giveback(). Since its
list entry was already removed, if CONFIG_DEBUG_LIST is enabled a
'list_del corruption' bug is thrown since its next/prev pointers are
already LIST_POISON1/2. If r->trb is NULL it should simply exit to
'out0'.

Fixes: cf3113d893 ("usb: dwc3: gadget: properly increment dequeue pointer on ep_dequeue")
Cc: stable@vger.kernel.org # v4.12+
Signed-off-by: Mayank Rana <mrana@codeaurora.org>
Signed-off-by: Jack Pham <jackp@codeaurora.org>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2018-04-25 14:26:26 +03:00
Wei Yongjun 9cffd15de0 usb: dwc3: gadget: dwc3_gadget_del_and_unmap_request() can be static
Fixes the following sparse warning:

drivers/usb/dwc3/gadget.c:169:6: warning:
 symbol 'dwc3_gadget_del_and_unmap_request' was not declared. Should it be static?

Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2018-04-25 14:26:06 +03:00
Wei Yongjun a53097c231 usb: dwc2: pci: Fix error return code in dwc2_pci_probe()
Fix to return error code -ENOMEM from the alloc fail error handling
case instead of 0, as done elsewhere in this function.

Fixes: ecd29dabb2 ("usb: dwc2: pci: Handle error cleanup in probe")
Reviewed-by: Grigor Tovmasyan <tovmasya@synopsys.com>
Acked-by: Minas Harutyunyan <hminas@synopsys.com>
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2018-04-25 14:24:48 +03:00
Artur Petrosyan 0ebf2a2c02 usb: dwc2: WA for Full speed ISOC IN in DDMA mode.
By clearing NAK status of EP, core will send ZLP
to IN token and assert NAK interrupt relying
on TxFIFO status only.

The WA applies only to core versions from 2.72a
to 4.00a (including both). Also for FS_IOT_1.00a
and HS_IOT_1.00a.

Signed-off-by: Artur Petrosyan <arturp@synopsys.com>
Signed-off-by: Minas Harutyunyan <hminas@synopsys.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2018-04-25 12:54:50 +03:00
Tomeu Vizoso 438fea2a63 usb: dwc2: dwc2_vbus_supply_init: fix error check
devm_regulator_get_optional returns -ENODEV if the regulator isn't
there, so if that's the case we have to make sure not to leave -ENODEV
in the regulator pointer.

Also, make sure we return 0 in that case, but correctly propagate any
other errors. Also propagate the error from _dwc2_hcd_start.

Fixes: 531ef5ebea ("usb: dwc2: add support for host mode external vbus supply")
Cc: Amelie Delaunay <amelie.delaunay@st.com>
Reviewed-by: Amelie Delaunay <amelie.delaunay@st.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Grigor Tovmasyan <tovmasya@synopsys.com>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Acked-by: Minas Harutyunyan <hminas@synopsys.com>
Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2018-04-25 12:48:31 +03:00
Luc Van Oostenryck 064b407542 usb: gadget: f_phonet: fix pn_net_xmit()'s return type
The method ndo_start_xmit() is defined as returning an 'netdev_tx_t',
which is a typedef for an enum type, but the implementation in this
driver returns an 'int'.

Fix this by returning 'netdev_tx_t' in this driver too.

Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2018-04-25 12:46:53 +03:00
Johan Hovold be75d8f1da USB: musb: dsps: drop duplicate phy initialisation
Since commit 39cee200c2 ("usb: musb: core: call init and shutdown for
the usb phy") the musb USB phy is initialised by musb_core, but the
original initialisation in the dsps-glue init callback was left in
place resulting in two calls to phy init during probe (and similarly,
two shutdowns on remove).

Drop the duplicate phy init and shutdown calls from the dsps glue in
favour of the ones in musb core, which other glue drivers rely on.

Note however that any generic phy is still initialised in the glue init
callback (just as for the other drivers).

Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Johan Hovold <johan@kernel.org>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Bin Liu <b-liu@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-04-23 16:02:13 +02:00
Johan Hovold 1f81f11840 USB: musb: host: prevent core phy initialisation
Set the new HCD flag which prevents USB core from trying to manage our
phys.

This is needed to be able to associate the controller platform device
with the glue device device-tree node on the BBB which uses legacy USB
phys. Otherwise, the generic phy lookup in usb_phy_roothub_init() and
thus HCD registration fails repeatedly with -EPROBE_DEFER (see commit
178a0bce05 ("usb: core: hcd: integrate the PHY wrapper into the HCD
core")).

Note that a related phy-lookup issue was recently worked around in the
phy core by commit b7563e2796 ("phy: work around 'phys' references to
usb-nop-xceiv devices"). Something similar may now be needed for other
USB phys, and in particular if we eventually want to let USB core manage
musb generic phys.

Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Bin Liu <b-liu@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-04-23 16:02:12 +02:00
Martin Blumenstingl 350f76dc06 usb: core: phy: add the SPDX-License-Identifier and include guard
This clarifies the license of the code. While here also add an include
guard to the header file.

Fixes: 07dbff0ddb ("usb: core: add a wrapper for the USB PHYs on the HCD")
Suggested-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-04-23 09:41:32 +02:00
Zhengjun Xing 7fc65d4c2b xhci: Fix Kernel oops in xhci dbgtty
tty_unregister_driver may be called more than 1 time in some
hotplug cases,it will cause the kernel oops. This patch checked
dbc_tty_driver to make sure it is unregistered only 1 time.

[  175.741404] BUG: unable to handle kernel NULL pointer dereference at 0000000000000034
[  175.742309] IP: tty_unregister_driver+0x9/0x70
[  175.743148] PGD 0 P4D 0
[  175.743981] Oops: 0000 [#1] SMP PTI
[  175.753904] RIP: 0010:tty_unregister_driver+0x9/0x70
[  175.754817] RSP: 0018:ffffa8ff831d3bb0 EFLAGS: 00010246
[  175.755753] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[  175.756685] RDX: ffff92089c616000 RSI: ffffe64fe1b26080 RDI: 0000000000000000
[  175.757608] RBP: ffff92086c988230 R08: 000000006c982701 R09: 00000001801e0016
[  175.758533] R10: ffffa8ff831d3b48 R11: ffff92086c982100 R12: ffff92086c98827c
[  175.759462] R13: ffff92086c988398 R14: 0000000000000060 R15: ffff92089c5e9b40
[  175.760401] FS:  0000000000000000(0000) GS:ffff9208a0100000(0000) knlGS:0000000000000000
[  175.761334] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  175.762270] CR2: 0000000000000034 CR3: 000000011800a003 CR4: 00000000003606e0
[  175.763225] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  175.764164] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  175.765091] Call Trace:
[  175.766014]  xhci_dbc_tty_unregister_driver+0x11/0x30
[  175.766960]  xhci_dbc_exit+0x2a/0x40
[  175.767889]  xhci_stop+0x57/0x1c0
[  175.768824]  usb_remove_hcd+0x100/0x250
[  175.769708]  usb_hcd_pci_remove+0x68/0x130
[  175.770574]  pci_device_remove+0x3b/0xc0
[  175.771435]  device_release_driver_internal+0x157/0x230
[  175.772343]  pci_stop_bus_device+0x74/0xa0
[  175.773205]  pci_stop_bus_device+0x2b/0xa0
[  175.774061]  pci_stop_bus_device+0x2b/0xa0
[  175.774907]  pci_stop_bus_device+0x2b/0xa0
[  175.775741]  pci_stop_bus_device+0x2b/0xa0
[  175.776618]  pci_stop_bus_device+0x2b/0xa0
[  175.777452]  pci_stop_bus_device+0x2b/0xa0
[  175.778273]  pci_stop_bus_device+0x2b/0xa0
[  175.779092]  pci_stop_bus_device+0x2b/0xa0
[  175.779908]  pci_stop_bus_device+0x2b/0xa0
[  175.780750]  pci_stop_bus_device+0x2b/0xa0
[  175.781543]  pci_stop_and_remove_bus_device+0xe/0x20
[  175.782338]  pciehp_unconfigure_device+0xb8/0x160
[  175.783128]  pciehp_disable_slot+0x4f/0xd0
[  175.783920]  pciehp_power_thread+0x82/0xa0
[  175.784766]  process_one_work+0x147/0x3c0
[  175.785564]  worker_thread+0x4a/0x440
[  175.786376]  kthread+0xf8/0x130
[  175.787174]  ? rescuer_thread+0x360/0x360
[  175.787964]  ? kthread_associate_blkcg+0x90/0x90
[  175.788798]  ret_from_fork+0x35/0x40

Cc: <stable@vger.kernel.org> # 4.16
Fixes: dfba2174dc ("usb: xhci: Add DbC support in xHCI driver")
Signed-off-by: Zhengjun Xing <zhengjun.xing@linux.intel.com>
Tested-by: Christian Kellner <christian@kellner.me>
Reviewed-by: Christian Kellner <christian@kellner.me>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-04-22 15:23:37 +02:00
Arnd Bergmann 602f4fb71d usb: select USB_COMMON for usb role switch config
The new axp288 extcon driver has no dependency on USB itself but
calls the usb role switch helper functions. This causes a link error
when USB_COMMON is disabled, as that subdirectory never gets entered:

drivers/extcon/extcon-axp288.o: In function `axp288_usb_role_work':
extcon-axp288.c:(.text+0x47b): undefined reference to `usb_role_switch_set_role'
extcon-axp288.c:(.text+0x498): undefined reference to `usb_role_switch_get_role'
drivers/extcon/extcon-axp288.o: In function `axp288_extcon_probe':
extcon-axp288.c:(.text+0x675): undefined reference to `usb_role_switch_get'
extcon-axp288.c:(.text+0x6d1): undefined reference to `usb_role_switch_put'
drivers/extcon/extcon-axp288.o: In function `axp288_put_role_sw':
extcon-axp288.c:(.text+0x1c): undefined reference to `usb_role_switch_put'

There are multiple ways of fixing this, I chose to 'select USB_COMMON',
since that is how we solved the same problem for other helpers like
USB_LED_TRIG or PHY drivers.

Fixes: d54f063cdb ("extcon: axp288: Set USB role where necessary")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-04-22 15:23:37 +02:00
Martin Blumenstingl 9d3cd19be3 usb: core: phy: add missing forward declaration for "struct device"
Currently hcd.c is the only consumer of the usb_phy_roothub logic. This
already includes the required header files so struct device is known.
However, future consumers might not know about struct device.
Add a forward declaration for struct device to fix potential future
consumers which don't include any of the struct device API headers.

Fixes: 07dbff0ddb ("usb: core: add a wrapper for the USB PHYs on the HCD")
Suggested-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-04-22 15:01:30 +02:00
Martin Blumenstingl fec94445db usb: core: phy: make it a no-op if CONFIG_GENERIC_PHY is disabled
If the generic PHY support is disabled the stub of devm_of_phy_get_by_index
returns ENOSYS. This corner case isn't handled properly by
usb_phy_roothub_add_phy and at least breaks USB support on Raspberry Pi
(bcm2835_defconfig):

    dwc2 20980000.usb: dwc2_hcd_init() FAILED, returning -38
    dwc2: probe of 20980000.usb failed with error -38

Let usb_phy_roothub_alloc() return in case CONFIG_GENERIC_PHY is
disabled to fix this issue (compilers might even be smart enough to
optimize away most of the code within usb_phy_roothub_alloc and
usb_phy_roothub_add_phy if CONFIG_GENERIC_PHY is disabled). All
existing usb_phy_roothub_* functions are already NULL-safe, so no
special handling is required there.

Fixes: 07dbff0ddb ("usb: core: add a wrapper for the USB PHYs on the HCD")
Reported-by: Stefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-04-22 15:01:30 +02:00
Martin Blumenstingl f0e36d478f usb: core: use phy_exit during suspend if wake up is not supported
If the USB controller can wake up the system (which is the case for
example with the Mediatek USB3 IP) then we must not call phy_exit during
suspend to ensure that the USB controller doesn't have to re-enumerate
the devices during resume.
However, if the USB controller cannot wake up the system (which is the
case for example on various TI platforms using a dwc3 controller) then
we must call phy_exit during suspend. Otherwise the PHY driver keeps the
clocks enabled, which prevents the system from reaching the lowest power
levels in the suspend state.

Solve this by introducing two new functions in the PHY wrapper which are
dedicated to the suspend and resume handling.
If the controller can wake up the system the new usb_phy_roothub_suspend
function will simply call usb_phy_roothub_power_off. However, if wake up
is not supported by the controller it will also call
usb_phy_roothub_exit.
The also new usb_phy_roothub_resume function takes care of calling
usb_phy_roothub_init (if the controller can't wake up the system) in
addition to usb_phy_roothub_power_on.

Fixes: 07dbff0ddb ("usb: core: add a wrapper for the USB PHYs on the HCD")
Fixes: 178a0bce05 ("usb: core: hcd: integrate the PHY wrapper into the HCD core")
Reported-by: Roger Quadros <rogerq@ti.com>
Suggested-by: Roger Quadros <rogerq@ti.com>
Suggested-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Tested-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Reviewed-by: Roger Quadros <rogerq@ti.com>
Tested-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-04-22 15:01:30 +02:00
Martin Blumenstingl 63cb03f5c1 usb: core: split usb_phy_roothub_{init,alloc}
Before this patch usb_phy_roothub_init served two purposes (from a
caller's point of view - like hcd.c):
- parsing the PHYs and allocating the list entries
- calling phy_init on each list entry

While this worked so far it has one disadvantage: if we need to call
phy_init for each PHY instance then the existing code cannot be re-used.
Solve this by splitting off usb_phy_roothub_alloc which only parses the
PHYs and allocates the list entries.
usb_phy_roothub_init then gets a struct usb_phy_roothub and only calls
phy_init on each PHY instance (along with the corresponding cleanup if
that failed somewhere).

This is a preparation step for adding proper suspend support for some
hardware that requires phy_exit to be called during suspend and phy_init
to be called during resume.

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Tested-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Reviewed-by: Roger Quadros <rogerq@ti.com>
Tested-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-04-22 15:01:30 +02:00
Martin Blumenstingl dd40438fc6 usb: core: phy: fix return value of usb_phy_roothub_exit()
usb_phy_roothub_exit() should return the error code from the phy_exit()
call if exiting the PHY failed.
However, since a wrong variable is used usb_phy_roothub_exit() currently
always returns 0, even if one of the phy_exit calls returned an error.
Clang also reports this bug:
kernel/drivers/usb/core/phy.c:114:8: warning: explicitly assigning value of
variable of type 'int' to itself [-Wself-assign] error, forbidden
warning: phy.c:114

Fix this by assigning the error code from phy_exit() to the "ret"
variable to propagate the error correctly.

Fixes: 07dbff0ddb ("usb: core: add a wrapper for the USB PHYs on the HCD")
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Rishabh Bhatnagar <rishabhb@codeaurora.org>
Tested-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-04-22 15:01:30 +02:00
Heikki Krogerus b1b59e1607 usb: typec: ucsi: Increase command completion timeout value
On some boards, under heavy load, the EC firmware is
unable to complete commands even in one second. Increasing
the command completion timeout value to five seconds.

Reported-by: Quanxian Wang <quanxian.wang@intel.com>
Fixes: c1b0bc2dab ("usb: typec: Add support for UCSI interface")
Cc: <stable@vger.kernel.org>
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-04-22 14:54:50 +02:00
Greg Kroah-Hartman c20f53c582 Revert "xhci: plat: Register shutdown for xhci_plat"
This reverts commit b07c12517f

It is incomplete and causes hangs on devices when shutting down.  It
needs a much more "complete" fix in order to work properly.  As that fix
has not been merged, revert this patch for now before it causes any more
problems.

Cc: Greg Hackmann <ghackmann@google.com>
Cc: Adam Wallis <awallis@codeaurora.org>
Cc: Mathias Nyman <mathias.nyman@intel.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-04-22 14:45:12 +02:00
Kamil Lulko 3180dabe08 usb: core: Add quirk for HP v222w 16GB Mini
Add DELAY_INIT quirk to fix the following problem with HP
v222w 16GB Mini:

usb 1-3: unable to read config index 0 descriptor/start: -110
usb 1-3: can't read configurations, error -110
usb 1-3: can't set config #1, error -110

Signed-off-by: Kamil Lulko <kamilx.lulko@intel.com>
Signed-off-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-04-22 14:45:12 +02:00
Tobias Regnery 2f860691c2 usb: typec: ucsi: fix tracepoint related build error
There is the following build error with CONFIG_TYPEC_UCSI=m, CONFIG_FTRACE=y
and CONFIG_TRACING=n:

ERROR: "__tracepoint_ucsi_command" [drivers/usb/typec/ucsi/typec_ucsi.ko] undefined!
ERROR: "__tracepoint_ucsi_register_port" [drivers/usb/typec/ucsi/typec_ucsi.ko] undefined!
ERROR: "__tracepoint_ucsi_notify" [drivers/usb/typec/ucsi/typec_ucsi.ko] undefined!
ERROR: "__tracepoint_ucsi_reset_ppm" [drivers/usb/typec/ucsi/typec_ucsi.ko] undefined!
ERROR: "__tracepoint_ucsi_run_command" [drivers/usb/typec/ucsi/typec_ucsi.ko] undefined!
ERROR: "__tracepoint_ucsi_ack" [drivers/usb/typec/ucsi/typec_ucsi.ko] undefined!
ERROR: "__tracepoint_ucsi_connector_change" [drivers/usb/typec/ucsi/typec_ucsi.ko] undefined!

This compination is quite hard to create because CONFIG_TRACING gets selected
only in rare cases without CONFIG_FTRACE.

The build failure is caused by conditionally compiling trace.c depending on
the wrong option CONFIG_FTRACE. Change this to depend on CONFIG_TRACING like
other users of tracepoints do.

Fixes: c1b0bc2dab ("usb: typec: Add support for UCSI interface")
Signed-off-by: Tobias Regnery <tobias.regnery@gmail.com>
Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-04-22 14:45:12 +02:00
Shuah Khan 4c98248234 usbip: usbip_event: fix to not print kernel pointer address
Fix it to not print kernel pointer address. Remove the conditional
and debug message as it isn't very useful.

Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-04-22 14:45:12 +02:00
Shuah Khan 4bfb141bc0 usbip: usbip_host: fix to hold parent lock for device_attach() calls
usbip_host calls device_attach() without holding dev->parent lock.
Fix it.

Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-04-22 14:45:11 +02:00
Shuah Khan 9020a7efe5 usbip: vhci_hcd: Fix usb device and sockfd leaks
vhci_hcd fails to do reset to put usb device and sockfd in the
module remove/stop paths. Fix the leak.

Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-04-22 14:45:11 +02:00
Shuah Khan 5b22f67611 usbip: vhci_hcd: check rhport before using in vhci_hub_control()
Validate !rhport < 0 before using it to access port_status array.

Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-04-22 14:45:11 +02:00
Ravi Chandra Sadineni 83a62c51ba USB: Increment wakeup count on remote wakeup.
On chromebooks we depend on wakeup count to identify the wakeup source.
But currently USB devices do not increment the wakeup count when they
trigger the remote wake. This patch addresses the same.

Resume condition is reported differently on USB 2.0 and USB 3.0 devices.

On USB 2.0 devices, a wake capable device, if wake enabled, drives
resume signal to indicate a remote wake (USB 2.0 spec section 7.1.7.7).
The upstream facing port then sets C_PORT_SUSPEND bit and reports a
port change event (USB 2.0 spec section 11.24.2.7.2.3). Thus if a port
has resumed before driving the resume signal from the host and
C_PORT_SUSPEND is set, then the device attached to the given port might
be the reason for the last system wakeup. Increment the wakeup count for
the same.

On USB 3.0 devices, a function may signal that it wants to exit from device
suspend by sending a Function Wake Device Notification to the host (USB3.0
spec section 8.5.6.4) Thus on receiving the Function Wake, increment the
wakeup count.

Signed-off-by: Ravi Chandra Sadineni <ravisadineni@chromium.org>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-04-22 14:45:11 +02:00
Gregory CLEMENT 3ae2da7b28 usb: host: xhci-plat: Fix clock resource by adding a register clock
On Armada 7K/8K we need to explicitly enable the register clock. This
clock is optional because not all the SoCs using this IP need it but at
least for Armada 7K/8K it is actually mandatory.

The change was done at xhci-plat level and not at a xhci-mvebu.c because,
it is expected that other SoC would have this kind of constraint.

The binding documentation is updating accordingly.

Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-04-20 16:24:20 +02:00
Gregory CLEMENT 2d79609bf2 usb: host: xhci-plat: Remove useless test before clk_disable_unprepare
clk_disable_unprepare() already checks that the clock pointer is valid.
No need to test it before calling it.

Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-04-20 16:24:20 +02:00
Kai-Heng Feng 621faf4f6a xhci: Fix USB ports for Dell Inspiron 5775
The Dell Inspiron 5775 is a Raven Ridge. The Enable Slot command timed
out when a USB device gets plugged:
[ 212.156326] xhci_hcd 0000:03:00.3: Error while assigning device slot ID
[ 212.156340] xhci_hcd 0000:03:00.3: Max number of devices this xHCI host supports is 64.
[ 212.156348] usb usb2-port3: couldn't allocate usb_device

AMD suggests that a delay before xHC suspends can fix the issue.

I can confirm it fixes the issue, so use the suspend delay quirk for
Raven Ridge's xHC.

Cc: stable@vger.kernel.org
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-04-20 16:24:20 +02:00
Vasyl Vavrychuk 470b5d6f0c USB: serial: ftdi_sio: use jtag quirk for Arrow USB Blaster
Arrow USB Blaster integrated on MAX1000 board uses the same vendor ID
(0x0403) and product ID (0x6010) as the "original" FTDI device.

This patch avoids picking up by ftdi_sio of the first interface of this
USB device. After that this device can be used by Arrow user-space JTAG
driver.

Signed-off-by: Vasyl Vavrychuk <vvavrychuk@gmail.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
2018-04-16 11:19:21 +02:00
Kyle Roeschley 1e23aace21 USB: serial: cp210x: add ID for NI USB serial console
Added the USB VID and PID for the USB serial console on some National
Instruments devices.

Signed-off-by: Kyle Roeschley <kyle.roeschley@ni.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
2018-04-16 11:19:11 +02:00
Collin May fe710508b6 USB: serial: simple: add libtransistor console
Add simple driver for libtransistor USB console.
This device is implemented in software:
https://github.com/reswitched/libtransistor/blob/development/lib/usb_serial.c

Signed-off-by: Collin May <collin@collinswebsite.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
2018-04-16 09:19:53 +02:00
Linus Torvalds 3612605a5a Merge branch 'next-general' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
Pull general security layer updates from James Morris:

 - Convert security hooks from list to hlist, a nice cleanup, saving
   about 50% of space, from Sargun Dhillon.

 - Only pass the cred, not the secid, to kill_pid_info_as_cred and
   security_task_kill (as the secid can be determined from the cred),
   from Stephen Smalley.

 - Close a potential race in kernel_read_file(), by making the file
   unwritable before calling the LSM check (vs after), from Kees Cook.

* 'next-general' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security:
  security: convert security hooks to use hlist
  exec: Set file unwritable before LSM check
  usb, signal, security: only pass the cred, not the secid, to kill_pid_info_as_cred and security_task_kill
2018-04-07 11:11:41 -07:00
Linus Torvalds 9abf8acea2 TTY/Serial driver patches for 4.17-rc1
Here is the big set of tty and serial driver patches for 4.17-rc1
 
 Not all that big really, most are just small fixes and additions to
 existing drivers.  There's a bunch of work on the imx serial driver
 recently for some reason, and a new embedded serial driver added as
 well.
 
 Full details are in the shortlog.
 
 All of these have been in the linux-next tree for a while with no
 reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-4.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

Pull tty/serial driver updates from Greg KH:
 "Here is the big set of tty and serial driver patches for 4.17-rc1

  Not all that big really, most are just small fixes and additions to
  existing drivers. There's a bunch of work on the imx serial driver
  recently for some reason, and a new embedded serial driver added as
  well.

  Full details are in the shortlog.

  All of these have been in the linux-next tree for a while with no
  reported issues"

* tag 'tty-4.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (66 commits)
  serial: expose buf_overrun count through proc interface
  serial: mvebu-uart: fix tx lost characters
  tty: serial: msm_geni_serial: Fix return value check in qcom_geni_serial_probe()
  tty: serial: msm_geni_serial: Add serial driver support for GENI based QUP
  8250-men-mcb: add support for 16z025 and 16z057
  powerpc: Mark the variable earlycon_acpi_spcr_enable maybe_unused
  serial: stm32: fix initialization of RS485 mode
  ARM: dts: STi: Remove "console=ttyASN" from bootargs for STi boards
  vt: change SGR 21 to follow the standards
  serdev: Fix typo in serdev_device_alloc
  ARM: dts: STi: Fix aliases property name for STi boards
  tty: st-asc: Update tty alias
  serial: stm32: add support for RS485 hardware control mode
  dt-bindings: serial: stm32: add RS485 optional properties
  selftests: add devpts selftests
  devpts: comment devpts_mntget()
  devpts: resolve devpts bind-mounts
  devpts: hoist out check for DEVPTS_SUPER_MAGIC
  serial: 8250: Add Nuvoton NPCM UART
  serial: mxs-auart: disable clks of Alphascale ASM9260
  ...
2018-04-04 18:43:49 -07:00
Linus Torvalds ac9053d2dc USB/PHY patches for 4.17-rc1
Here is the big set of USB and PHY driver patches for 4.17-rc1.
 
 Lots of USB typeC work happened this round, with code moving from the
 staging directory into the "real" part of the kernel, as well as new
 infrastructure being added to be able to handle the different types of
 "roles" that typeC requires.
 
 There is also the normal huge set of USB gadget controller and driver
 updates, along with XHCI changes, and a raft of other tiny fixes all
 over the USB tree.  And the PHY driver updates are merged in here as
 well as they interacted with the USB drivers in some places.
 
 All of these have been in linux-next for a while with no reported
 issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-4.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB/PHY updates from Greg KH:
 "Here is the big set of USB and PHY driver patches for 4.17-rc1.

  Lots of USB typeC work happened this round, with code moving from the
  staging directory into the "real" part of the kernel, as well as new
  infrastructure being added to be able to handle the different types of
  "roles" that typeC requires.

  There is also the normal huge set of USB gadget controller and driver
  updates, along with XHCI changes, and a raft of other tiny fixes all
  over the USB tree. And the PHY driver updates are merged in here as
  well as they interacted with the USB drivers in some places.

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'usb-4.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (250 commits)
  Revert "USB: serial: ftdi_sio: add Id for Physik Instrumente E-870"
  usb: musb: gadget: misplaced out of bounds check
  usb: chipidea: imx: Fix ULPI on imx53
  usb: chipidea: imx: Cleanup ci_hdrc_imx_platform_flag
  usb: chipidea: usbmisc: small clean up
  usb: chipidea: usbmisc: evdo can be set e/o reset
  usb: chipidea: usbmisc: evdo is only specific to OTG port
  USB: serial: ftdi_sio: add Id for Physik Instrumente E-870
  usb: dwc3: gadget: never call ->complete() from ->ep_queue()
  usb: gadget: udc: core: update usb_ep_queue() documentation
  usb: host: Remove the deprecated ATH79 USB host config options
  usb: roles: Fix return value check in intel_xhci_usb_probe()
  USB: gadget: f_midi: fixing a possible double-free in f_midi
  usb: core: Add USB_QUIRK_DELAY_CTRL_MSG to usbcore quirks
  usb: core: Copy parameter string correctly and remove superfluous null check
  USB: announce bcdDevice as well as idVendor, idProduct.
  USB:fix USB3 devices behind USB3 hubs not resuming at hibernate thaw
  usb: hub: Reduce warning to notice on power loss
  USB: serial: ftdi_sio: add support for Harman FirmwareHubEmulator
  USB: serial: cp210x: add ELDAT Easywave RX09 id
  ...
2018-04-04 17:55:35 -07:00
Linus Torvalds 5bb053bef8 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
Pull networking updates from David Miller:

 1) Support offloading wireless authentication to userspace via
    NL80211_CMD_EXTERNAL_AUTH, from Srinivas Dasari.

 2) A lot of work on network namespace setup/teardown from Kirill Tkhai.
    Setup and cleanup of namespaces now all run asynchronously and thus
    performance is significantly increased.

 3) Add rx/tx timestamping support to mv88e6xxx driver, from Brandon
    Streiff.

 4) Support zerocopy on RDS sockets, from Sowmini Varadhan.

 5) Use denser instruction encoding in x86 eBPF JIT, from Daniel
    Borkmann.

 6) Support hw offload of vlan filtering in mvpp2 dreiver, from Maxime
    Chevallier.

 7) Support grafting of child qdiscs in mlxsw driver, from Nogah
    Frankel.

 8) Add packet forwarding tests to selftests, from Ido Schimmel.

 9) Deal with sub-optimal GSO packets better in BBR congestion control,
    from Eric Dumazet.

10) Support 5-tuple hashing in ipv6 multipath routing, from David Ahern.

11) Add path MTU tests to selftests, from Stefano Brivio.

12) Various bits of IPSEC offloading support for mlx5, from Aviad
    Yehezkel, Yossi Kuperman, and Saeed Mahameed.

13) Support RSS spreading on ntuple filters in SFC driver, from Edward
    Cree.

14) Lots of sockmap work from John Fastabend. Applications can use eBPF
    to filter sendmsg and sendpage operations.

15) In-kernel receive TLS support, from Dave Watson.

16) Add XDP support to ixgbevf, this is significant because it should
    allow optimized XDP usage in various cloud environments. From Tony
    Nguyen.

17) Add new Intel E800 series "ice" ethernet driver, from Anirudh
    Venkataramanan et al.

18) IP fragmentation match offload support in nfp driver, from Pieter
    Jansen van Vuuren.

19) Support XDP redirect in i40e driver, from Björn Töpel.

20) Add BPF_RAW_TRACEPOINT program type for accessing the arguments of
    tracepoints in their raw form, from Alexei Starovoitov.

21) Lots of striding RQ improvements to mlx5 driver with many
    performance improvements, from Tariq Toukan.

22) Use rhashtable for inet frag reassembly, from Eric Dumazet.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1678 commits)
  net: mvneta: improve suspend/resume
  net: mvneta: split rxq/txq init and txq deinit into SW and HW parts
  ipv6: frags: fix /proc/sys/net/ipv6/ip6frag_low_thresh
  net: bgmac: Fix endian access in bgmac_dma_tx_ring_free()
  net: bgmac: Correctly annotate register space
  route: check sysctl_fib_multipath_use_neigh earlier than hash
  fix typo in command value in drivers/net/phy/mdio-bitbang.
  sky2: Increase D3 delay to sky2 stops working after suspend
  net/mlx5e: Set EQE based as default TX interrupt moderation mode
  ibmvnic: Disable irqs before exiting reset from closed state
  net: sched: do not emit messages while holding spinlock
  vlan: also check phy_driver ts_info for vlan's real device
  Bluetooth: Mark expected switch fall-throughs
  Bluetooth: Set HCI_QUIRK_SIMULTANEOUS_DISCOVERY for BTUSB_QCA_ROME
  Bluetooth: btrsi: remove unused including <linux/version.h>
  Bluetooth: hci_bcm: Remove DMI quirk for the MINIX Z83-4
  sh_eth: kill useless check in __sh_eth_get_regs()
  sh_eth: add sh_eth_cpu_data::no_xdfar flag
  ipv6: factorize sk_wmem_alloc updates done by __ip6_append_data()
  ipv4: factorize sk_wmem_alloc updates done by __ip_append_data()
  ...
2018-04-03 14:04:18 -07:00
Linus Torvalds f5a8eb632b arch: remove obsolete architecture ports
This removes the entire architecture code for blackfin, cris, frv, m32r,
 metag, mn10300, score, and tile, including the associated device drivers.
 
 I have been working with the (former) maintainers for each one to ensure
 that my interpretation was right and the code is definitely unused in
 mainline kernels. Many had fond memories of working on the respective
 ports to start with and getting them included in upstream, but also saw
 no point in keeping the port alive without any users.
 
 In the end, it seems that while the eight architectures are extremely
 different, they all suffered the same fate: There was one company
 in charge of an SoC line, a CPU microarchitecture and a software
 ecosystem, which was more costly than licensing newer off-the-shelf
 CPU cores from a third party (typically ARM, MIPS, or RISC-V). It seems
 that all the SoC product lines are still around, but have not used the
 custom CPU architectures for several years at this point. In contrast,
 CPU instruction sets that remain popular and have actively maintained
 kernel ports tend to all be used across multiple licensees.
 
 The removal came out of a discussion that is now documented at
 https://lwn.net/Articles/748074/. Unlike the original plans, I'm not
 marking any ports as deprecated but remove them all at once after I made
 sure that they are all unused. Some architectures (notably tile, mn10300,
 and blackfin) are still being shipped in products with old kernels,
 but those products will never be updated to newer kernel releases.
 
 After this series, we still have a few architectures without mainline
 gcc support:
 
 - unicore32 and hexagon both have very outdated gcc releases, but the
   maintainers promised to work on providing something newer. At least
   in case of hexagon, this will only be llvm, not gcc.
 
 - openrisc, risc-v and nds32 are still in the process of finishing their
   support or getting it added to mainline gcc in the first place.
   They all have patched gcc-7.3 ports that work to some degree, but
   complete upstream support won't happen before gcc-8.1. Csky posted
   their first kernel patch set last week, their situation will be similar.
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Merge tag 'arch-removal' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic

Pul removal of obsolete architecture ports from Arnd Bergmann:
 "This removes the entire architecture code for blackfin, cris, frv,
  m32r, metag, mn10300, score, and tile, including the associated device
  drivers.

  I have been working with the (former) maintainers for each one to
  ensure that my interpretation was right and the code is definitely
  unused in mainline kernels. Many had fond memories of working on the
  respective ports to start with and getting them included in upstream,
  but also saw no point in keeping the port alive without any users.

  In the end, it seems that while the eight architectures are extremely
  different, they all suffered the same fate: There was one company in
  charge of an SoC line, a CPU microarchitecture and a software
  ecosystem, which was more costly than licensing newer off-the-shelf
  CPU cores from a third party (typically ARM, MIPS, or RISC-V). It
  seems that all the SoC product lines are still around, but have not
  used the custom CPU architectures for several years at this point. In
  contrast, CPU instruction sets that remain popular and have actively
  maintained kernel ports tend to all be used across multiple licensees.

  [ See the new nds32 port merged in the previous commit for the next
    generation of "one company in charge of an SoC line, a CPU
    microarchitecture and a software ecosystem"   - Linus ]

  The removal came out of a discussion that is now documented at
  https://lwn.net/Articles/748074/. Unlike the original plans, I'm not
  marking any ports as deprecated but remove them all at once after I
  made sure that they are all unused. Some architectures (notably tile,
  mn10300, and blackfin) are still being shipped in products with old
  kernels, but those products will never be updated to newer kernel
  releases.

  After this series, we still have a few architectures without mainline
  gcc support:

   - unicore32 and hexagon both have very outdated gcc releases, but the
     maintainers promised to work on providing something newer. At least
     in case of hexagon, this will only be llvm, not gcc.

   - openrisc, risc-v and nds32 are still in the process of finishing
     their support or getting it added to mainline gcc in the first
     place. They all have patched gcc-7.3 ports that work to some
     degree, but complete upstream support won't happen before gcc-8.1.
     Csky posted their first kernel patch set last week, their situation
     will be similar

  [ Palmer Dabbelt points out that RISC-V support is in mainline gcc
    since gcc-7, although gcc-7.3.0 is the recommended minimum  - Linus ]"

This really says it all:

 2498 files changed, 95 insertions(+), 467668 deletions(-)

* tag 'arch-removal' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic: (74 commits)
  MAINTAINERS: UNICORE32: Change email account
  staging: iio: remove iio-trig-bfin-timer driver
  tty: hvc: remove tile driver
  tty: remove bfin_jtag_comm and hvc_bfin_jtag drivers
  serial: remove tile uart driver
  serial: remove m32r_sio driver
  serial: remove blackfin drivers
  serial: remove cris/etrax uart drivers
  usb: Remove Blackfin references in USB support
  usb: isp1362: remove blackfin arch glue
  usb: musb: remove blackfin port
  usb: host: remove tilegx platform glue
  pwm: remove pwm-bfin driver
  i2c: remove bfin-twi driver
  spi: remove blackfin related host drivers
  watchdog: remove bfin_wdt driver
  can: remove bfin_can driver
  mmc: remove bfin_sdh driver
  input: misc: remove blackfin rotary driver
  input: keyboard: remove bf54x driver
  ...
2018-04-02 20:20:12 -07:00
Johan Hovold 5267c5e09c Revert "USB: serial: ftdi_sio: add Id for Physik Instrumente E-870"
This reverts commit 79a0b33165.

Turns out this is not an FTDI device after all.

Fixes: 79a0b33165 ("USB: serial: ftdi_sio: add Id for Physik Instrumente E-870")
Reported-by: Martin Teichmann <martin.teichmann@xfel.eu>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-29 18:37:28 +02:00
Heinrich Schuchardt af6f852909 usb: musb: gadget: misplaced out of bounds check
musb->endpoints[] has array size MUSB_C_NUM_EPS.
We must check array bounds before accessing the array and not afterwards.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Bin Liu <b-liu@ti.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-29 18:37:28 +02:00