Commit Graph

21841 Commits

Author SHA1 Message Date
Mathias Nyman
e0aa56dc7b xhci: dbc: simplify dbc requests allocation and queueing
Don't pass endpoint pointer, dbctty should not be aware of
struct dbc_ep, knowing the direction is enough.

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20200723144530.9992-23-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-23 17:05:28 +02:00
Mathias Nyman
11e229a758 xhci: dbc: Pass dbc pointer to dbc start and stop functions.
xhci_dbc_start() and xhci_dbc_stop() functions only used xhci_hcd pointer
to get the dbc pointer.
Pass the dbc pointer instead of the xhci_hcd pointer as a parameter

No functional changes
This change helps decoupling xhci and DbC

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20200723144530.9992-22-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-23 17:05:28 +02:00
Mathias Nyman
dd98570be1 xhci: dbc: Pass dbc pointer to dbc memory init and cleanup functions
Dbc mem_init and mem_cleanup functions used xhci_hcd to get to the device
pointer. The device pointer can be accessed directly from dbc structure,
so pass a pointer to dbc as a parameter instead.

No functional changes
This change helps decoupling xhci and DbC

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20200723144530.9992-21-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-23 17:05:28 +02:00
Mathias Nyman
ac286428c6 xhci: dbc: don't use generic xhci ring allocation functions for dbc.
The generic xhci ring allocations code needs struct xhci_hcd pointer, and
it allocates memory for the rings from dma pools created for the xhci
device.

In order to decouple xhci and DbC we have to create our own ring allocation
and free routines for DbC

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20200723144530.9992-20-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-23 17:05:28 +02:00
Mathias Nyman
cb66434e67 xhci: dbc: Don't use generic xhci context allocation for dbc
The DbC context is different from the xhci device context.
It's a lot smaller as it only contains three 64 bytes sub-contexts;
the info, endpoint-out, and endpoint-in contexts. In total 192 bytes.
The context size (CSZ) field in HCCPARAMS1 xhci register does not alter
DbC context size like it does for xhci device contexts.

So don't use the geneic xhci context memory allocation, or the
dma pool that is intended for xhci device contexts.

In addition to saving memory this also helps decoupleing xhci and dbc code.

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20200723144530.9992-19-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-23 17:05:28 +02:00
Mathias Nyman
f39f3afdf9 xhci: dbc: Use dbc structure in the request completion instead of xhci_hcd
The dbc request completion callback doesn't need a xhci_hcd pointer.
The only user of the xhci_hcd pointer in dbgtty request callback was
the xhci_warn() function. Change it to dev_warn() instead.

While changing the callback function parameter to dbc in struct
xhci_requeset, move the struct xhci_request declaraion down a bit in the
header file to avoid compiler warinings

No functional changes
This change helps decoupling xhci and DbC

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20200723144530.9992-18-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-23 17:05:28 +02:00
Mathias Nyman
91aaf97471 xhci: dbc: Pass dbc pointer to get_in/out_ep() helper functions to get endpoints
Pass dbc pointer instead of struct xhci_hcd pointer to the get_in_ep() and
get_out_ep() helper functions.

No functional changes
This change helps decoupling xhci and DbC

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20200723144530.9992-17-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-23 17:05:28 +02:00
Mathias Nyman
b396fa39de xhci: dbgtty: Pass dbc pointer when registering a dbctty device
Pass dbc pointer to the xhci_dbc_tty_register_device() and
xhci_dbc_tty_unregister_device() functions instead of xhci_hcd pointer

These functions don't need a xhci_hcd pointer anymore, only use case was
the xhci_err() function, which is now changed to a dev_err() instead.

No functional changes
This change helps decoupling xhci and DbC

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20200723144530.9992-16-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-23 17:05:27 +02:00
Mathias Nyman
a1f6376df4 xhci: dbc: Pass dbc pointer to dbc_handle_xfer_event() instead of xhci_hcd pointer
The event handling function only used xhci pointer to get the dbc pointer.
Pass the dbc pointer instead as a parameter

No functional changes
This change helps decoupling xhci and DbC

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20200723144530.9992-15-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-23 17:05:27 +02:00
Mathias Nyman
903089b7b9 xhci: dbc: Change to pass dbc pointer to xhci_do_dbc_stop()
Pass the dbc pointer instead of xhci_hcd pointer in order to
decouple xhci and dbc.

xhci_do_dbc_stop() only used xhci to get the dbc pointer.
Pass the dbc pointer instead as a parameter

No functional changes
This change helps decoupling xhci and DbC

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20200723144530.9992-14-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-23 17:05:27 +02:00
Mathias Nyman
d3249fa917 xhci: dbc: Pass dbc pointer to endpoint init and exit functions.
struct xhci_hcd pointer is not needed for dbc endpoint init and exit,
it was only used to get to the dbc structure.
Pass the dbc pointer as a parameter to these functions instead.

No functional changes
This change helps decoupling xhci and DbC

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20200723144530.9992-13-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-23 17:05:27 +02:00
Mathias Nyman
ed7bffee02 xhci: dbc: Get the device pointer from dbc structure in dbc_ep_do_queue()
dbc_ep_do_queue() can now get the device pointer directly from dbc
structure instead of going through the xhci_hcd structure.

No functional changes
This change helps decoupling xhci and DbC

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20200723144530.9992-12-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-23 17:05:27 +02:00
Mathias Nyman
1da49a26af xhci: dbc: Don't pass the xhci pointer as a parameter to xhci_dbc_init_context()
xhci_dbc_init_context() no longer needs the struct xhci_hcd pointer.
Pass the dbc pointer directly instead.

No functional changes
This change helps decoupling xhci and DbC

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20200723144530.9992-11-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-23 17:05:27 +02:00
Mathias Nyman
7cd6312e09 xhci: dbc: Don't use xhci_write_64() as it takes xhci as a parameter
xhci_write_64() is essentially a wrapper for lo_hi_writeq(), but it
requires struct xhci_hcd * as a parameter.
Use lo_hi_writeq() directly instead

No functional changes
This change helps decoupling xhci and DbC

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20200723144530.9992-10-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-23 17:05:27 +02:00
Mathias Nyman
985247fe4c xhci: dbc: Use dev_info() and similar instead of xhci_info()
To make this change possible we also need to change
dbc_handle_port_status() to take dbc pointer as parameter instead of
xhci_hcd pointer.

Note that xhci_info() used xhci_to_hcd(xhci)->self.controller as the
device while for dev_info we use xhci_to_hcd(xhci)->self.sysdev.

In many cases those are the same, but not for some device where
a dwc3 controller creates a xhci platform device. In th this case
self.controller may be the platform device while self.sysdev is
the actual device known to firmware (dwc3).

This change helps decoupling xhci and DbC

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20200723144530.9992-9-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-23 17:05:26 +02:00
Mathias Nyman
be33f48093 xhci: dbc: Add device pointer to dbc structure
Currently the dbc structure contains a pointer to struct xhci_hcd,
and dbc functions use that to dig up the underlying device pointer.

We are trying to decouple xhci and dbc code, and prepare for
code that use dbc such as dbctty into into real device drivers.
This is one step along the way.

Keep functionality the same and keep the xhci pointer, and
let the new device pointer point to the xhci device for now.

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20200723144530.9992-8-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-23 17:05:26 +02:00
Mathias Nyman
bcf87ea6e2 xhci: dbc: Remove dbc_dma_free_coherent() wrapper
dbc_dma_free_coherent() takes struct xhci_hcd pointer as a parameter, but
does nothing more than calls dma_free_coherent().
Remove it and call dma_free_coherent() directly instead.

No functional changes
This change helps decoupling xhci and DbC

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20200723144530.9992-7-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-23 17:05:26 +02:00
Mathias Nyman
c9dd94385d xhci: dbc: Remove dbc_dma_alloc_coherent() wrapper
dbc_dma_alloc_coherent() takes struct xhci_hcd pointer as an parameter, but
does nothing more than calls dma_alloc_coherent().
Remove it and call dma_alloc_coherent() directly instead.

No functional changes
This change helps decoupling xhci and DbC

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20200723144530.9992-6-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-23 17:05:26 +02:00
Mathias Nyman
0b832e9974 xhci: dbc: Don't use generic xhci erst allocation and free functions
The generic erst allocation and free functions take struct xhci_hcd pointer
as a parameter. Create own erst helpers for DbC in order to decouple xhci
and DbC

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20200723144530.9992-5-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-23 17:05:26 +02:00
Mathias Nyman
e3bc8004bd xhci: Don't pass struct xhci_hcd pointer to xhci_link_seg()
It's only used to dig out if we need to set a chain flag for specific
hosts. Pass the flag directly as a parameter instead.

No functional changes.

xhci_link_seg() is also used by DbC code, this change helps decoupling
xhci and DbC.

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20200723144530.9992-4-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-23 17:05:26 +02:00
Mathias Nyman
5b43a2a84b xhci: dbc: Don't use generic xhci inc_deq() function for dbc
The generic inc_deq() helper takes struct xhci_hcd pointer as a parameter,
and is a lot more complex than needed for the DbC usecase.

In order to decouple xhci and DbC we have to create our own small
inc_evt_deq() helper, not relying on xhci.

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20200723144530.9992-3-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-23 17:05:26 +02:00
Kai-Heng Feng
8aaf19b8ec xhci: Make debug message consistent with bus and port number
Current xhci debug message doesn't always output bus number, so it's
hard to figure out it's from USB2 or USB3 root hub.

In addition to that, some port numbers are offset to 0 and others are
offset to 1. Use the latter to match the USB core.

So use "bus number - port index + 1" to make debug message consistent.

Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20200723144530.9992-2-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-23 17:05:26 +02:00
Amelie Delaunay
916f8b6272 usb: dwc2: don't use ID/Vbus detection if usb-role-switch on STM32MP15 SoCs
If usb-role-switch is present in the device tree, it means that ID and Vbus
signals are not connected to the OTG controller but to an external
component (GPIOs, Type-C controller). In this configuration, usb role
switch is used to force valid sessions on STM32MP15 SoCs.

Acked-by: Minas Harutyunyan <hminas@synopsys.com>
Signed-off-by: Amelie Delaunay <amelie.delaunay@st.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
2020-07-23 14:45:36 +03:00
Amelie Delaunay
bc0f0d4a58 usb: dwc2: override PHY input signals with usb role switch support
This patch adds support for usb role switch to dwc2, by using overriding
control of the PHY voltage valid and ID input signals.

iddig signal (ID) can be overridden:
- when setting GUSBCFG_FORCEHOSTMODE, iddig input pin is overridden with 1;
- when setting GUSBCFG_FORCEDEVMODE, iddig input pin is overridden with 0.

avalid/bvalid/vbusvalid signals can be overridden respectively with:
- GOTGCTL_AVALOEN + GOTGCTL_AVALOVAL
- GOTGCTL_BVALOEN + GOTGCTL_BVALOVAL
- GOTGCTL_VBVALEN + GOTGCTL_VBVALOVAL

It is possible to determine valid sessions thanks to usb role switch:
- if USB_ROLE_NONE then !avalid && !bvalid && !vbusvalid
- if USB_ROLE_DEVICE then !avalid && bvalid && vbusvalid
- if USB_ROLE_HOST then avalid && !bvalid && vbusvalid

Acked-by: Minas Harutyunyan <hminas@synopsys.com>
Signed-off-by: Amelie Delaunay <amelie.delaunay@st.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
2020-07-23 14:45:36 +03:00
Jon Hunter
0b987032f8 usb: tegra: Fix allocation for the FPCI context
Commit 5c4e8d3781 ("usb: host: xhci-tegra: Add support for XUSB
context save/restore") is using the IPFS 'num_offsets' value when
allocating memory for FPCI context instead of the FPCI 'num_offsets'.

After commit cad064f1bd ("devres: handle zero size in devm_kmalloc()")
was added system suspend started failing on Tegra186. The kernel log
showed that the Tegra XHCI driver was crashing on entry to suspend when
attempting the save the USB context. On Tegra186, the IPFS context has a
zero length but the FPCI content has a non-zero length, and because of
the bug in the Tegra XHCI driver we are incorrectly allocating a zero
length array for the FPCI context. The crash seen on entering suspend
when we attempt to save the FPCI context and following commit
cad064f1bd ("devres: handle zero size in devm_kmalloc()") this now
causes a NULL pointer deference when we access the memory. Fix this by
correcting the amount of memory we are allocating for FPCI contexts.

Cc: stable@vger.kernel.org

Fixes: 5c4e8d3781 ("usb: host: xhci-tegra: Add support for XUSB context save/restore")

Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Link: https://lore.kernel.org/r/20200715113842.30680-1-jonathanh@nvidia.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-23 13:21:01 +02:00
Christoph Hellwig
c17536d0ab usb: usbfs: stop using compat_alloc_user_space
Just switch the low-level routines to take kernel structures, and do the
conversion from the compat to the native structure on that.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20200722073655.220011-1-hch@lst.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-22 13:13:22 +02:00
Forest Crossman
dbb0897e80 usb: xhci: Fix ASM2142/ASM3142 DMA addressing
The ASM2142/ASM3142 (same PCI IDs) does not support full 64-bit DMA
addresses, which can cause silent memory corruption or IOMMU errors on
platforms that use the upper bits. Add the XHCI_NO_64BIT_SUPPORT quirk
to fix this issue.

Signed-off-by: Forest Crossman <cyrozap@gmail.com>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20200717112734.328432-1-cyrozap@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-21 14:05:49 +02:00
Chunfeng Yun
5ce1a24dd9 usb: xhci-mtk: fix the failure of bandwidth allocation
The wMaxPacketSize field of endpoint descriptor may be zero
as default value in alternate interface, and they are not
actually selected when start stream, so skip them when try to
allocate bandwidth.

Cc: stable <stable@vger.kernel.org>
Fixes: 0cbd4b34cd ("xhci: mediatek: support MTK xHCI host controller")
Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Link: https://lore.kernel.org/r/1594360672-2076-1-git-send-email-chunfeng.yun@mediatek.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-21 14:05:49 +02:00
Linus Walleij
15d157e874 usb: ohci-omap: Convert to use GPIO descriptors
The OMAP1 OHCI driver is using the legacy GPIO API to grab some
random GPIO lines. One is from the TPS65010 chip and used for
power, another one is for overcurrent and while the driver picks
this line it doesn't watch it at all.

Convert the driver and the OMAP1 OSK board file to pass these
two GPIOs as machine described GPIO descriptors.

I noticed the overcurrent GPIO line is not really used in the
code so dropped in a little comment for other developers.

Cc: Janusz Krzysztofik <jmkrzyszt@gmail.com>
Cc: Tony Lindgren <tony@atomide.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20200720135524.100374-2-linus.walleij@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-21 13:42:37 +02:00
Linus Walleij
2334186343 usb: ohci-omap: Create private state container
The OMAP1 was using static locals to hold the clock handles
which is uncommon and does not scale. Create a private data
struct and use that to hold the clocks.

Cc: Janusz Krzysztofik <jmkrzyszt@gmail.com>
Cc: Tony Lindgren <tony@atomide.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20200720135524.100374-1-linus.walleij@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-21 13:42:37 +02:00
Xu Wang
d8a849353c usb: appledisplay: remove needless check before usb_free_coherent()
usb_free_coherent() is safe with NULL addr and this check is
not required.

Signed-off-by: Xu Wang <vulab@iscas.ac.cn>
Link: https://lore.kernel.org/r/20200720052456.7610-1-vulab@iscas.ac.cn
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-21 13:41:58 +02:00
Alexander A. Klimov
ffeb1e9e89 USB: Replace HTTP links with HTTPS ones
Rationale:
Reduces attack surface on kernel devs opening the links for MITM
as HTTPS traffic is much harder to manipulate.

Deterministic algorithm:
For each file:
  If not .svg:
    For each line:
      If doesn't contain `\bxmlns\b`:
        For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`:
	  If neither `\bgnu\.org/license`, nor `\bmozilla\.org/MPL\b`:
            If both the HTTP and HTTPS versions
            return 200 OK and serve the same content:
              Replace HTTP with HTTPS.

Signed-off-by: Alexander A. Klimov <grandmaster@al2klimov.de>
Link: https://lore.kernel.org/r/20200719160910.60018-1-grandmaster@al2klimov.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-21 13:41:57 +02:00
Bixuan Cui
a482766d00 usb: usbtest: reduce stack usage in test_queue
Fix the warning: [-Werror=-Wframe-larger-than=]

drivers/usb/misc/usbtest.c: In function 'test_queue':
drivers/usb/misc/usbtest.c:2148:1:
warning: the frame size of 1232 bytes is larger than 1024 bytes

Reported-by: kbuild test robot <lkp@intel.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Bixuan Cui <cuibixuan@huawei.com>
Link: https://lore.kernel.org/r/ffa85702-86ab-48d7-4da2-2efcc94b05d3@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-21 13:41:57 +02:00
Badhri Jagan Sridharan
6e1c2241f4 usb: typec: tcpm: Stay in BIST mode till hardreset or unattached
Port starts to toggle when transitioning to unattached state.
This is incorrect while in BIST mode.

6.4.3.1 BIST Carrier Mode
Upon receipt of a BIST Message, with a BIST Carrier Mode BIST Data Object,
the UUT Shall send out a continuous string of BMC encoded alternating "1"s
and “0”s. The UUT Shall exit the Continuous BIST Mode within
tBISTContMode of this Continuous BIST Mode being enabled(see
Section 6.6.7.2).

6.4.3.2 BIST Test Data
Upon receipt of a BIST Message, with a BIST Test Data BIST Data Object,
the UUT Shall return a GoodCRC Message and Shall enter a test mode in which
it sends no further Messages except for GoodCRC Messages in response to
received Messages. See Section 5.9.2 for the definition of the Test Data
Frame. The test Shall be ended by sending Hard Reset Signaling to reset the
UUT.

Signed-off-by: Badhri Jagan Sridharan <badhri@google.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20200716034128.1251728-3-badhri@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-21 13:38:21 +02:00
Badhri Jagan Sridharan
c081ac42fe usb: typec: tcpci: Support BIST test data mode for compliance.
Quoting from TCPCI spec:
"Setting this bit to 1 is intended to be used only when a USB compliance
tester is using USB BIST Test Data to test the PHY layer of the TCPC. The
TCPM should clear this bit when a disconnect is detected.
0: Normal Operation. Incoming messages enabled by RECEIVE_DETECT
passed to TCPM via Alert.
1: BIST Test Mode. Incoming messages enabled by RECEIVE_DETECT
result in GoodCRC response but may not be passed to the TCPM via
Alert."

Signed-off-by: Badhri Jagan Sridharan <badhri@google.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20200716034128.1251728-2-badhri@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-21 13:38:21 +02:00
Badhri Jagan Sridharan
b2dcfefc43 usb: typec: tcpm: Support bist test data mode for compliance
TCPM supports BIST carried mode. PD compliance tests require
BIST Test Data to be supported as well.

Introducing set_bist_data callback to signal tcpc driver for
configuring the port controller hardware to enable/disable
BIST Test Data mode.

Signed-off-by: Badhri Jagan Sridharan <badhri@google.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20200716034128.1251728-1-badhri@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-21 13:38:21 +02:00
Kyle Tso
d25d61be6b usb: typec: tcpm: Error handling for tcpm_register_partner_altmodes
typec_partner_register_altmode returns ERR_PTR. Reset the pointer
altmode to NULL on failure.

Signed-off-by: Kyle Tso <kyletso@google.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20200714033453.4044482-3-kyletso@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-21 13:38:21 +02:00
Kyle Tso
1401bfe058 usb: typec: Comment correction for typec_partner_register_altmode
typec_register_altmode returns ERR_PTR on failure.

Signed-off-by: Kyle Tso <kyletso@google.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20200714033453.4044482-2-kyletso@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-21 13:38:21 +02:00
Prashant Malani
658027afea usb: typec: intel_pmc_mux: Avoid connect request on disconnect
When pmc_usb_mux_set() is invoked when a device is disconnected, a valid
scenario is for state->alt == NULL and state->mode == TYPEC_STATE_USB.

In such cases, if a pmc_usb_disconnect() has already been issued (from
either pmc_usb_set_orientation() when orientation ==
TYPEC_ORIENTATION_NONE, or pmc_usb_set_role() when role ==
USB_ROLE_NONE), a pmc_usb_connect() will be issued despite no peripheral
being present.

This confuses the PMC and leads to all subsequent PMC IPC requests
returning errors due to timeout.

To prevent this, return early if the port orientation or role is already
set to none.

Cc: Benson Leung <bleung@chromium.org>
Cc: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Cc: Rajmohan Mani <rajmohan.mani@intel.com>
Fixes: f3c1c41ebc ("usb: typec: intel_pmc_mux: Add support for USB4")
Signed-off-by: Prashant Malani <pmalani@chromium.org>
Link: https://lore.kernel.org/r/20200709002441.1309189-1-pmalani@chromium.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-21 13:38:21 +02:00
Kars Mulder
b1b6bed3b5 usb: core: fix quirks_param_set() writing to a const pointer
The function quirks_param_set() takes as argument a const char* pointer
to the new value of the usbcore.quirks parameter. It then casts this
pointer to a non-const char* pointer and passes it to the strsep()
function, which overwrites the value.

Fix this by creating a copy of the value using kstrdup() and letting
that copy be written to by strsep().

Fixes: 027bd6cafd ("usb: core: Add "quirks" parameter for usbcore")
Signed-off-by: Kars Mulder <kerneldev@karsmulder.nl>

Link: https://lore.kernel.org/r/5ee2-5f048a00-21-618c5c00@230659773
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-21 13:38:21 +02:00
Andy Shevchenko
306c54d0ed usb: hcd: Try MSI interrupts on PCI devices
It appears that some platforms share same IRQ line between several devices,
some of which are EHCI and OHCI controllers. This is neither practical nor
performance-wise, especially in the case when they are supporting MSI.

In order to improve the situation try to allocate MSI and fallback to legacy
IRQ if no MSI available.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20200702143045.23429-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-21 13:38:21 +02:00
Erik Ekman
d2a4309c1a USB: serial: qcserial: add EM7305 QDL product ID
When running qmi-firmware-update on the Sierra Wireless EM7305 in a Toshiba
laptop, it changed product ID to 0x9062 when entering QDL mode:

usb 2-4: new high-speed USB device number 78 using xhci_hcd
usb 2-4: New USB device found, idVendor=1199, idProduct=9062, bcdDevice= 0.00
usb 2-4: New USB device strings: Mfr=1, Product=2, SerialNumber=0
usb 2-4: Product: EM7305
usb 2-4: Manufacturer: Sierra Wireless, Incorporated

The upgrade could complete after running
 # echo 1199 9062 > /sys/bus/usb-serial/drivers/qcserial/new_id

qcserial 2-4:1.0: Qualcomm USB modem converter detected
usb 2-4: Qualcomm USB modem converter now attached to ttyUSB0

Signed-off-by: Erik Ekman <erik@kryo.se>
Link: https://lore.kernel.org/r/20200717185118.3640219-1-erik@kryo.se
Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold <johan@kernel.org>
2020-07-21 09:25:52 +02:00
Johan Hovold
de37458f8c USB: serial: iuu_phoenix: fix led-activity helpers
The set-led command is eight bytes long and starts with a command byte
followed by six bytes of RGB data and ends with a byte encoding a
frequency (see iuu_led() and iuu_rgbf_fill_buffer()).

The led activity helpers had a few long-standing bugs which corrupted
the command packets by inserting a second command byte and thereby
offsetting the RGB data and dropping the frequency in non-xmas mode.

In xmas mode, a related off-by-one error left the frequency field
uninitialised.

Fixes: 60a8fc0171 ("USB: add iuu_phoenix driver")
Reported-by: George Spelvin <lkml@sdf.org>
Link: https://lore.kernel.org/r/20200716085056.31471-1-johan@kernel.org
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
2020-07-21 09:25:52 +02:00
Greg Kroah-Hartman
eed3c957dd Linux 5.8-rc6
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Merge 5.8-rc6 into usb-next

We need the USB fixes in here as well.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-20 09:41:30 +02:00
Greg Kroah-Hartman
c7300cdf8f USB-serial fixes for 5.8-rc6
Here's a fix for 5.8 addressing a long-standing bug in iuu_phoenix.
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Merge tag 'usb-serial-5.8-rc6' of https://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial into usb-linus

Johan writes:

USB-serial fixes for 5.8-rc6

Here's a fix for 5.8 addressing a long-standing bug in iuu_phoenix.

* tag 'usb-serial-5.8-rc6' of https://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial:
  USB: serial: iuu_phoenix: fix memory corruption
2020-07-16 17:30:59 +02:00
Johan Hovold
e7b931bee7 USB: serial: iuu_phoenix: fix memory corruption
The driver would happily overwrite its write buffer with user data in
256 byte increments due to a removed buffer-space sanity check.

Fixes: 5fcf62b0f1 ("tty: iuu_phoenix: fix locking.")
Cc: stable <stable@vger.kernel.org>     # 2.6.31
Signed-off-by: Johan Hovold <johan@kernel.org>
2020-07-16 10:20:21 +02:00
Lee Jones
313da01ad5 usb: misc: sisusbvga: Move static const tables out to different include file
sisusb_init.h is included by multiple source files, but the big data
tables contained are only referenced by one of them, leaving the tables
'defined but not used' by the remainder.  We have a choice to either
place them inside the source file, taking up may lines and potentially
overwhelming the source file OR tuck them away neatly inside their own
headerfile.  The latter was chosen.

Fixes the following W=1 kernel build warning(s):

 In file included from drivers/usb/misc/sisusbvga/sisusb.c:54:
 drivers/usb/misc/sisusbvga/sisusb_init.h:664:34: warning: ‘SiSUSB_VCLKData’ defined but not used [-Wunused-const-variable=]
 664 | static const struct SiS_VCLKData SiSUSB_VCLKData[] = {
 | ^~~~~~~~~~~~~~~
 drivers/usb/misc/sisusbvga/sisusb_init.h:406:35: warning: ‘SiSUSB_CRT1Table’ defined but not used [-Wunused-const-variable=]
 406 | static const struct SiS_CRT1Table SiSUSB_CRT1Table[] = {
 | ^~~~~~~~~~~~~~~~
 drivers/usb/misc/sisusbvga/sisusb_init.h:348:30: warning: ‘SiSUSB_RefIndex’ defined but not used [-Wunused-const-variable=]
 348 | static const struct SiS_Ext2 SiSUSB_RefIndex[] = {
 | ^~~~~~~~~~~~~~~
 drivers/usb/misc/sisusbvga/sisusb_init.h:269:29: warning: ‘SiSUSB_EModeIDTable’ defined but not used [-Wunused-const-variable=]
 269 | static const struct SiS_Ext SiSUSB_EModeIDTable[] = {
 | ^~~~~~~~~~~~~~~~~~~
 drivers/usb/misc/sisusbvga/sisusb_init.h:238:36: warning: ‘SiSUSB_StandTable’ defined but not used [-Wunused-const-variable=]
 238 | static const struct SiS_StandTable SiSUSB_StandTable[] = {
 | ^~~~~~~~~~~~~~~~~
 drivers/usb/misc/sisusbvga/sisusb_init.h:201:37: warning: ‘SiSUSB_ModeResInfo’ defined but not used [-Wunused-const-variable=]
 201 | static const struct SiS_ModeResInfo SiSUSB_ModeResInfo[] = {
 | ^~~~~~~~~~~~~~~~~~
 drivers/usb/misc/sisusbvga/sisusb_init.h:196:28: warning: ‘SiSUSB_SModeIDTable’ defined but not used [-Wunused-const-variable=]
 196 | static const struct SiS_St SiSUSB_SModeIDTable[] = {
 | ^~~~~~~~~~~~~~~~~~~
 drivers/usb/misc/sisusbvga/sisusb_init.h:183:28: warning: ‘SiS_VGA_DAC’ defined but not used [-Wunused-const-variable=]
 183 | static const unsigned char SiS_VGA_DAC[] = {
 | ^~~~~~~~~~~
 drivers/usb/misc/sisusbvga/sisusb_init.h:172:28: warning: ‘SiS_EGA_DAC’ defined but not used [-Wunused-const-variable=]
 172 | static const unsigned char SiS_EGA_DAC[] = {
 | ^~~~~~~~~~~
 drivers/usb/misc/sisusbvga/sisusb_init.h:161:28: warning: ‘SiS_CGA_DAC’ defined but not used [-Wunused-const-variable=]
 161 | static const unsigned char SiS_CGA_DAC[] = {
 | ^~~~~~~~~~~
 drivers/usb/misc/sisusbvga/sisusb_init.h:150:28: warning: ‘SiS_MDA_DAC’ defined but not used [-Wunused-const-variable=]
 150 | static const unsigned char SiS_MDA_DAC[] = {
 | ^~~~~~~~~~~

Cc: Thomas Winischhofer <thomas@winischhofer.net>
Cc: Joe Perches <joe@perches.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20200715093209.3165641-9-lee.jones@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-15 17:25:57 +02:00
Lee Jones
4805ad2488 usb: misc: sisusbvga: sisusb_init: Remove genunine unused static const arrays
These are not referenced anywhere in the kernel.

Fixes the following W=1 kernel build warning(s):

 drivers/usb/misc/sisusbvga/sisusb_init.h:171:29: warning: ‘ModeIndex_1280x1024’ defined but not used [-Wunused-const-variable=]
 drivers/usb/misc/sisusbvga/sisusb_init.h:170:29: warning: ‘ModeIndex_1280x768’ defined but not used [-Wunused-const-variable=]
 drivers/usb/misc/sisusbvga/sisusb_init.h:169:29: warning: ‘ModeIndex_1280x720’ defined but not used [-Wunused-const-variable=]
 drivers/usb/misc/sisusbvga/sisusb_init.h:168:29: warning: ‘ModeIndex_1152x864’ defined but not used [-Wunused-const-variable=]
 drivers/usb/misc/sisusbvga/sisusb_init.h:167:29: warning: ‘ModeIndex_1024x576’ defined but not used [-Wunused-const-variable=]
 drivers/usb/misc/sisusbvga/sisusb_init.h:166:29: warning: ‘ModeIndex_1024x768’ defined but not used [-Wunused-const-variable=]
 drivers/usb/misc/sisusbvga/sisusb_init.h:165:29: warning: ‘ModeIndex_960x600’ defined but not used [-Wunused-const-variable=]
 drivers/usb/misc/sisusbvga/sisusb_init.h:164:29: warning: ‘ModeIndex_960x540’ defined but not used [-Wunused-const-variable=]
 drivers/usb/misc/sisusbvga/sisusb_init.h:163:29: warning: ‘ModeIndex_856x480’ defined but not used [-Wunused-const-variable=]
 drivers/usb/misc/sisusbvga/sisusb_init.h:162:29: warning: ‘ModeIndex_848x480’ defined but not used [-Wunused-const-variable=]
 drivers/usb/misc/sisusbvga/sisusb_init.h:161:29: warning: ‘ModeIndex_800x600’ defined but not used [-Wunused-const-variable=]
 drivers/usb/misc/sisusbvga/sisusb_init.h:160:29: warning: ‘ModeIndex_800x480’ defined but not used [-Wunused-const-variable=]
 drivers/usb/misc/sisusbvga/sisusb_init.h:159:29: warning: ‘ModeIndex_768x576’ defined but not used [-Wunused-const-variable=]
 drivers/usb/misc/sisusbvga/sisusb_init.h:158:29: warning: ‘ModeIndex_720x576’ defined but not used [-Wunused-const-variable=]
 drivers/usb/misc/sisusbvga/sisusb_init.h:157:29: warning: ‘ModeIndex_720x480’ defined but not used [-Wunused-const-variable=]
 drivers/usb/misc/sisusbvga/sisusb_init.h:156:29: warning: ‘ModeIndex_640x480’ defined but not used [-Wunused-const-variable=]
 drivers/usb/misc/sisusbvga/sisusb_init.h:155:29: warning: ‘ModeIndex_640x400’ defined but not used [-Wunused-const-variable=]
 drivers/usb/misc/sisusbvga/sisusb_init.h:154:29: warning: ‘ModeIndex_512x384’ defined but not used [-Wunused-const-variable=]
 drivers/usb/misc/sisusbvga/sisusb_init.h:153:29: warning: ‘ModeIndex_400x300’ defined but not used [-Wunused-const-variable=]
 drivers/usb/misc/sisusbvga/sisusb_init.h:152:29: warning: ‘ModeIndex_320x240’ defined but not used [-Wunused-const-variable=]
 drivers/usb/misc/sisusbvga/sisusb_init.h:151:29: warning: ‘ModeIndex_320x200’ defined but not used [-Wunused-const-variable=]
 drivers/usb/misc/sisusbvga/sisusb_init.h:232:37: warning: ‘SiSUSB_ModeResInfo’ defined but not used [-Wunused-const-variable=]

Cc: Thomas Winischhofer <thomas@winischhofer.net>
Cc: Joe Perches <joe@perches.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20200715093209.3165641-8-lee.jones@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-15 17:25:57 +02:00
Lee Jones
e606c759f4 usb: c67x00: c67x00-hcd: Demote obvious misuse of kerneldoc to standard comment blocks
No attempt has been made to document any of the functions here.

Fixes the following W=1 kernel build warning(s):

 drivers/usb/c67x00/c67x00-hcd.c:237: warning: Function parameter or member 'sie' not described in 'c67x00_hcd_irq'
 drivers/usb/c67x00/c67x00-hcd.c:237: warning: Function parameter or member 'int_status' not described in 'c67x00_hcd_irq'
 drivers/usb/c67x00/c67x00-hcd.c:237: warning: Function parameter or member 'msg' not described in 'c67x00_hcd_irq'
 drivers/usb/c67x00/c67x00-hcd.c:267: warning: Function parameter or member 'hcd' not described in 'c67x00_hcd_start'
 drivers/usb/c67x00/c67x00-hcd.c:279: warning: Function parameter or member 'hcd' not described in 'c67x00_hcd_stop'

Cc: Peter Korsgaard <jacmet@sunsite.dk>
Cc: Oliver Neukum <oneukum@suse.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20200715093209.3165641-7-lee.jones@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-15 17:25:57 +02:00
Lee Jones
ddcb6c6ad7 usb: class: cdc-wdm: Provide description for usb_cdc_wdm_register()'s manage_power arg
A good attempt was made to document everything else.

Fixes the following W=1 kernel build warning(s):

 drivers/usb/class/cdc-wdm.c:961: warning: Function parameter or member 'manage_power' not described in 'usb_cdc_wdm_register'

Cc: Oliver Neukum <oneukum@suse.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20200715093209.3165641-6-lee.jones@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-15 17:25:57 +02:00
Lee Jones
56976249bd usb: mtu3: mtu3_trace: Supply missing mtu3_debug.h include file
If the header file containing a function's prototype isn't included by
the sourcefile containing the associated function, the build system
complains of missing prototypes.

Fixes the following W=1 kernel build warning(s):

 drivers/usb/mtu3/mtu3_trace.c:13:6: warning: no previous prototype for ‘mtu3_dbg_trace’ [-Wmissing-prototypes]
 13 | void mtu3_dbg_trace(struct device *dev, const char *fmt, ...)
 | ^~~~~~~~~~~~~~

Cc: Chunfeng Yun <chunfeng.yun@mediatek.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-mediatek@lists.infradead.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20200715093209.3165641-5-lee.jones@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-15 17:25:57 +02:00
Lee Jones
680b512726 usb: mtu3: mtu3_trace: Function headers are not suitable for kerneldoc
Kerneldoc headers should only be used to document functions and data
structures.

Cc: Chunfeng Yun <chunfeng.yun@mediatek.com>
Cc: linux-mediatek@lists.infradead.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20200715093209.3165641-4-lee.jones@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-15 17:25:57 +02:00
Lee Jones
eeed948c1d usb: dwc2: gadget: Avoid pointless read of EP control register
Commit ec1f9d9f01 ("usb: dwc2: gadget: parity fix in isochronous mode") moved
these checks to dwc2_hsotg_change_ep_iso_parity() back in 2015.  The assigned
value hasn't been read back since.  Let's remove the unnecessary H/W read.

Fixes the following W=1 warning:

 drivers/usb/dwc2/gadget.c: In function ‘dwc2_hsotg_epint’:
 drivers/usb/dwc2/gadget.c:2981:6: warning: variable ‘ctrl’ set but not used [-Wunused-but-set-variable]
 2981 | u32 ctrl;
 | ^~~~

Cc: Ben Dooks <ben@simtec.co.uk>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Minas Harutyunyan <hminas@synopsys.com>
Link: https://lore.kernel.org/r/20200715093209.3165641-3-lee.jones@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-15 17:25:57 +02:00
Lee Jones
9607f3cd8b usb: dwc2: gadget: Make use of GINTMSK2
The value obtained from GINTSTS2 should be masked with the GINTMSK2
value.  Looks like this has been broken since
dwc2_gadget_wkup_alert_handler() was added back in 2018.

Also fixes the following W=1 warning:

 drivers/usb/dwc2/gadget.c: In function ‘dwc2_gadget_wkup_alert_handler’:
 drivers/usb/dwc2/gadget.c:259:6: warning: variable ‘gintmsk2’ set but not used [-Wunused-but-set-variable]
 259 | u32 gintmsk2;
 | ^~~~~~~~

Cc: Ben Dooks <ben@simtec.co.uk>
Fixes: 187c5298a1 ("usb: dwc2: gadget: Add handler for WkupAlert interrupt")
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Minas Harutyunyan <hminas@synopsys.com>
Link: https://lore.kernel.org/r/20200715093209.3165641-2-lee.jones@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-15 17:25:56 +02:00
YueHaibing
258e858802 USB: musb: Remove unused inline function
It is never used, so can remove it.

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Link: https://lore.kernel.org/r/20200715031204.17308-1-yuehaibing@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-15 16:48:10 +02:00
Changming Liu
2b53a19284 USB: sisusbvga: Fix a potential UB casued by left shifting a negative value
The char buffer buf, receives data directly from user space,
so its content might be negative and its elements are left
shifted to form an unsigned integer.

Since left shifting a negative value is undefined behavior, thus
change the char to u8 to elimintate this UB.

Signed-off-by: Changming Liu <charley.ashbringer@gmail.com>
Link: https://lore.kernel.org/r/20200711043018.928-1-charley.ashbringer@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-15 16:48:10 +02:00
Suraj Upadhyay
48025b4f3f USB: Remove pci-dma-compat wrapper APIs.
The legacy API wrappers in include/linux/pci-dma-compat.h
should go away as it creates unnecessary midlayering
for include/linux/dma-mapping.h APIs, instead use dma-mapping.h
APIs directly.

The patch has been generated with the coccinelle script below
and compile-tested.

@@@@
- PCI_DMA_BIDIRECTIONAL
+ DMA_BIDIRECTIONAL

@@@@
- PCI_DMA_TODEVICE
+ DMA_TO_DEVICE

@@@@
- PCI_DMA_FROMDEVICE
+ DMA_FROM_DEVICE

@@@@
- PCI_DMA_NONE
+ DMA_NONE

@@ expression E1, E2, E3; @@
- pci_alloc_consistent(E1, E2, E3)
+ dma_alloc_coherent(&E1->dev, E2, E3, GFP_)

@@ expression E1, E2, E3; @@
- pci_zalloc_consistent(E1, E2, E3)
+ dma_alloc_coherent(&E1->dev, E2, E3, GFP_)

@@ expression E1, E2, E3, E4; @@
- pci_free_consistent(E1, E2, E3, E4)
+ dma_free_coherent(&E1->dev, E2, E3, E4)

@@ expression E1, E2, E3, E4; @@
- pci_map_single(E1, E2, E3, E4)
+ dma_map_single(&E1->dev, E2, E3, E4)

@@ expression E1, E2, E3, E4; @@
- pci_unmap_single(E1, E2, E3, E4)
+ dma_unmap_single(&E1->dev, E2, E3, E4)

@@ expression E1, E2, E3, E4, E5; @@
- pci_map_page(E1, E2, E3, E4, E5)
+ dma_map_page(&E1->dev, E2, E3, E4, E5)

@@ expression E1, E2, E3, E4; @@
- pci_unmap_page(E1, E2, E3, E4)
+ dma_unmap_page(&E1->dev, E2, E3, E4)

@@ expression E1, E2, E3, E4; @@
- pci_map_sg(E1, E2, E3, E4)
+ dma_map_sg(&E1->dev, E2, E3, E4)

@@ expression E1, E2, E3, E4; @@
- pci_unmap_sg(E1, E2, E3, E4)
+ dma_unmap_sg(&E1->dev, E2, E3, E4)

@@ expression E1, E2, E3, E4; @@
- pci_dma_sync_single_for_cpu(E1, E2, E3, E4)
+ dma_sync_single_for_cpu(&E1->dev, E2, E3, E4)

@@ expression E1, E2, E3, E4; @@
- pci_dma_sync_single_for_device(E1, E2, E3, E4)
+ dma_sync_single_for_device(&E1->dev, E2, E3, E4)

@@ expression E1, E2, E3, E4; @@
- pci_dma_sync_sg_for_cpu(E1, E2, E3, E4)
+ dma_sync_sg_for_cpu(&E1->dev, E2, E3, E4)

@@ expression E1, E2, E3, E4; @@
- pci_dma_sync_sg_for_device(E1, E2, E3, E4)
+ dma_sync_sg_for_device(&E1->dev, E2, E3, E4)

@@ expression E1, E2; @@
- pci_dma_mapping_error(E1, E2)
+ dma_mapping_error(&E1->dev, E2)

@@ expression E1, E2; @@
- pci_set_consistent_dma_mask(E1, E2)
+ dma_set_coherent_mask(&E1->dev, E2)

@@ expression E1, E2; @@
- pci_set_dma_mask(E1, E2)
+ dma_set_mask(&E1->dev, E2)

Signed-off-by: Suraj Upadhyay <usuraj35@gmail.com>
Link: https://lore.kernel.org/r/20200714115249.GA8563@blackclown
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-15 16:48:10 +02:00
Alexander A. Klimov
10fadd5e81 usb: gadget: Replace HTTP links with HTTPS ones
Rationale:
Reduces attack surface on kernel devs opening the links for MITM
as HTTPS traffic is much harder to manipulate.

Deterministic algorithm:
For each file:
  If not .svg:
    For each line:
      If doesn't contain `\bxmlns\b`:
        For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`:
	  If neither `\bgnu\.org/license`, nor `\bmozilla\.org/MPL\b`:
            If both the HTTP and HTTPS versions
            return 200 OK and serve the same content:
              Replace HTTP with HTTPS.

Signed-off-by: Alexander A. Klimov <grandmaster@al2klimov.de>
Link: https://lore.kernel.org/r/20200710190919.31464-1-grandmaster@al2klimov.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-15 16:33:52 +02:00
Alexander A. Klimov
36774c5ac8 usb: phy: Replace HTTP links with HTTPS ones
Rationale:
Reduces attack surface on kernel devs opening the links for MITM
as HTTPS traffic is much harder to manipulate.

Deterministic algorithm:
For each file:
  If not .svg:
    For each line:
      If doesn't contain `\bxmlns\b`:
        For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`:
	  If neither `\bgnu\.org/license`, nor `\bmozilla\.org/MPL\b`:
            If both the HTTP and HTTPS versions
            return 200 OK and serve the same content:
              Replace HTTP with HTTPS.

Signed-off-by: Alexander A. Klimov <grandmaster@al2klimov.de>
Link: https://lore.kernel.org/r/20200710191842.32561-1-grandmaster@al2klimov.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-15 16:33:51 +02:00
Alexander A. Klimov
10623b879d usb: dwc3: Replace HTTP links with HTTPS ones
Rationale:
Reduces attack surface on kernel devs opening the links for MITM
as HTTPS traffic is much harder to manipulate.

Deterministic algorithm:
For each file:
  If not .svg:
    For each line:
      If doesn't contain `\bxmlns\b`:
        For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`:
	  If neither `\bgnu\.org/license`, nor `\bmozilla\.org/MPL\b`:
            If both the HTTP and HTTPS versions
            return 200 OK and serve the same content:
              Replace HTTP with HTTPS.

Signed-off-by: Alexander A. Klimov <grandmaster@al2klimov.de>
Link: https://lore.kernel.org/r/20200711135804.19735-1-grandmaster@al2klimov.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-15 16:33:51 +02:00
Alexander A. Klimov
d6c3c6c09f usb: host: xhci-plat: Replace HTTP links with HTTPS ones
Rationale:
Reduces attack surface on kernel devs opening the links for MITM
as HTTPS traffic is much harder to manipulate.

Deterministic algorithm:
For each file:
  If not .svg:
    For each line:
      If doesn't contain `\bxmlns\b`:
        For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`:
	  If neither `\bgnu\.org/license`, nor `\bmozilla\.org/MPL\b`:
            If both the HTTP and HTTPS versions
            return 200 OK and serve the same content:
              Replace HTTP with HTTPS.

Signed-off-by: Alexander A. Klimov <grandmaster@al2klimov.de>
Link: https://lore.kernel.org/r/20200711135813.19798-1-grandmaster@al2klimov.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-15 16:33:50 +02:00
Alexander A. Klimov
952dd40e05 usb: typec: Replace HTTP links with HTTPS ones
Rationale:
Reduces attack surface on kernel devs opening the links for MITM
as HTTPS traffic is much harder to manipulate.

Deterministic algorithm:
For each file:
  If not .svg:
    For each line:
      If doesn't contain `\bxmlns\b`:
        For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`:
	  If neither `\bgnu\.org/license`, nor `\bmozilla\.org/MPL\b`:
            If both the HTTP and HTTPS versions
            return 200 OK and serve the same content:
              Replace HTTP with HTTPS.

Signed-off-by: Alexander A. Klimov <grandmaster@al2klimov.de>
Link: https://lore.kernel.org/r/20200711135825.19862-1-grandmaster@al2klimov.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-15 16:33:50 +02:00
Alexander A. Klimov
681aa3cf06 USB: ohci: Replace HTTP links with HTTPS ones
Rationale:
Reduces attack surface on kernel devs opening the links for MITM
as HTTPS traffic is much harder to manipulate.

Deterministic algorithm:
For each file:
  If not .svg:
    For each line:
      If doesn't contain `\bxmlns\b`:
        For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`:
	  If neither `\bgnu\.org/license`, nor `\bmozilla\.org/MPL\b`:
            If both the HTTP and HTTPS versions
            return 200 OK and serve the same content:
              Replace HTTP with HTTPS.

Signed-off-by: Alexander A. Klimov <grandmaster@al2klimov.de>
Link: https://lore.kernel.org/r/20200713092314.32774-1-grandmaster@al2klimov.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-15 16:33:50 +02:00
Johan Hovold
e0439cd975 USB: serial: sierra: clean up special-interface handling
Clean up the handling of special interfaces that either should be
ignored or that need a larger number of URBs.

Commit 66f092ed3b ("USB: serial: sierra: unify quirk handling logic")
replaced the previous is_blacklisted() and is_highmemory() helpers with
a single is_quirk() helper which made it even harder to understand what
the interface lists were used for.

Rename the interface-list struct, its members and the interface-lookup
helper and restructure the code somewhat in order to make it more
self-explanatory.

Link: https://lore.kernel.org/r/20200713153936.18032-1-johan@kernel.org
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
2020-07-14 11:50:57 +02:00
Johan Hovold
16045babc7 USB: serial: cp210x: use in-kernel types in port data
The port data is not exported to user space so use the in-kernel u8
type.

Link: https://lore.kernel.org/r/20200713105517.27796-6-johan@kernel.org
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
2020-07-14 11:50:45 +02:00
Johan Hovold
ba84190eab USB: serial: cp210x: drop unnecessary packed attributes
Drop unnecessary packed attributes from structs without padding.

Link: https://lore.kernel.org/r/20200713105517.27796-5-johan@kernel.org
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
2020-07-14 11:50:36 +02:00
Johan Hovold
de9c7e9f27 USB: serial: cp210x: add support for TIOCGICOUNT
Enable TIOCGICOUNT to allow reading out the (unused) interrupt counters
and error statistics.

Note that modem-status events are currently left unimplemented as they
appear to be buffered on at least CP2102 and therefore cannot be used to
implement TIOCMIWAIT.

Link: https://lore.kernel.org/r/20200713105517.27796-4-johan@kernel.org
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
2020-07-14 11:50:28 +02:00
Johan Hovold
a7207e9835 USB: serial: cp210x: add support for line-status events
Add support for line-status events that specifically can be used to
detect and report parity errors.

Enable the device's event-insertion mode whenever input-parity checking
is requested. This will insert line and modem status events into the
data stream.

Note that modem-status changes appear to be buffered until a character
is received (at least on CP2102) and support is therefore left
unimplemented.

On at least one type of these chips (CP2102), line breaks are not
reported as expected either (regardless of whether SERIAL_BREAK_CHAR is
set) so do not enable event-mode when !IGNBRK is requested for now.

Link: https://lore.kernel.org/r/20200713105517.27796-3-johan@kernel.org
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
2020-07-14 11:50:14 +02:00
Johan Hovold
bcbb9d812e USB: serial: cp210x: disable interface on errors in open
Try to disable the serial interface in the unlikely event that generic
open() fails.

Link: https://lore.kernel.org/r/20200713105517.27796-2-johan@kernel.org
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
2020-07-14 11:47:30 +02:00
Greg Kroah-Hartman
d1c0d96535 USB: fixes for v5.8-rc3
Adding support for recent Intel devices (Tiger Lake and Jasper Lake)
 on dwc3. We have some endianess fixes in cdns3, a memleak fix in
 gr_udc and lock API usage fix in the legacy f_uac1
 
 Signed-off-by: Felipe Balbi <balbi@kernel.org>
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Merge tag 'fixes-for-v5.8-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-linus

Felipe writes:

USB: fixes for v5.8-rc3

Adding support for recent Intel devices (Tiger Lake and Jasper Lake)
on dwc3. We have some endianess fixes in cdns3, a memleak fix in
gr_udc and lock API usage fix in the legacy f_uac1

Signed-off-by: Felipe Balbi <balbi@kernel.org>

* tag 'fixes-for-v5.8-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb:
  usb: gadget: function: fix missing spinlock in f_uac1_legacy
  usb: gadget: udc: atmel: fix uninitialized read in debug printk
  usb: gadget: udc: atmel: remove outdated comment in usba_ep_disable()
  usb: dwc2: Fix shutdown callback in platform
  usb: cdns3: trace: fix some endian issues
  usb: cdns3: ep0: fix some endian issues
  usb: gadget: udc: gr_udc: fix memleak on error handling path in gr_ep_init()
  usb: gadget: fix langid kernel-doc warning in usbstring.c
  usb: dwc3: pci: add support for the Intel Jasper Lake
  usb: dwc3: pci: add support for the Intel Tiger Lake PCH -H variant
2020-07-10 12:40:04 +02:00
Tom Rix
211f083473 USB: c67x00: fix use after free in c67x00_giveback_urb
clang static analysis flags this error

c67x00-sched.c:489:55: warning: Use of memory after it is freed [unix.Malloc]
        usb_hcd_giveback_urb(c67x00_hcd_to_hcd(c67x00), urb, urbp->status);
                                                             ^~~~~~~~~~~~
Problem happens in this block of code

	c67x00_release_urb(c67x00, urb);
	usb_hcd_unlink_urb_from_ep(c67x00_hcd_to_hcd(c67x00), urb);
	spin_unlock(&c67x00->lock);
	usb_hcd_giveback_urb(c67x00_hcd_to_hcd(c67x00), urb, urbp->status);

In the call to c67x00_release_urb has this freeing of urbp

	urbp = urb->hcpriv;
	urb->hcpriv = NULL;
	list_del(&urbp->hep_node);
	kfree(urbp);

And so urbp is freed before usb_hcd_giveback_urb uses it as its 3rd
parameter.

Since all is required is the status, pass the status directly as is
done in c64x00_urb_dequeue

Fixes: e9b29ffc51 ("USB: add Cypress c67x00 OTG controller HCD driver")
Signed-off-by: Tom Rix <trix@redhat.com>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20200708131243.24336-1-trix@redhat.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-10 09:01:41 +02:00
Wei Yongjun
25051b55a2 udc: lpc32xx: make symbol 'lpc32xx_usbddata' static
The sparse tool complains as follows:

drivers/usb/gadget/udc/lpc32xx_udc.c:2989:25: warning:
 symbol 'lpc32xx_usbddata' was not declared. Should it be static?

This variable is not used outside of lpc32xx_udc.c, so this commit
marks it static.

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Link: https://lore.kernel.org/r/20200707105350.7064-1-weiyongjun1@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-10 08:55:18 +02:00
Gustavo A. R. Silva
a74005ab91 usb: gadget: Use fallthrough pseudo-keyword
Replace the existing /* fall through */ comments and its variants with
the new pseudo-keyword macro fallthrough[1]. Also, remove unnecessary
fall-through markings when it is the case.

[1] https://www.kernel.org/doc/html/latest/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through

Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Link: https://lore.kernel.org/r/20200707171500.GA13620@embeddedor
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-10 08:55:18 +02:00
Gustavo A. R. Silva
8b84724e9e usb: host: Use fallthrough pseudo-keyword
Replace the existing /* fall through */ comments and its variants with
the new pseudo-keyword macro fallthrough[1]. Also, remove unnecessary
fall-through markings when it is the case.

[1] https://www.kernel.org/doc/html/latest/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through

Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Link: https://lore.kernel.org/r/20200707195023.GA3792@embeddedor
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-10 08:55:18 +02:00
Gustavo A. R. Silva
e288fc9828 USB: OHCI: Use fallthrough pseudo-keyword
Replace the existing /* fall through */ comments and its variants with
the new pseudo-keyword macro fallthrough[1]. Also, remove unnecessary
fall-through markings when it is the case.

[1] https://www.kernel.org/doc/html/latest/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through

Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Link: https://lore.kernel.org/r/20200707195351.GA4061@embeddedor
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-10 08:55:18 +02:00
Gustavo A. R. Silva
0d9b6d49fe usb: Use fallthrough pseudo-keyword
Replace the existing /* fall through */ comments and its variants with
the new pseudo-keyword macro fallthrough[1]. Also, remove unnecessary
fall-through markings when it is the case.

[1] https://www.kernel.org/doc/html/latest/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through

Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Link: https://lore.kernel.org/r/20200707195607.GA4198@embeddedor
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-10 08:55:17 +02:00
Gustavo A. R. Silva
4e71e07943 usb: phy: Use fallthrough pseudo-keyword
Replace the existing /* fall through */ comments and its variants with
the new pseudo-keyword macro fallthrough[1]. Also, remove unnecessary
fall-through markings when it is the case.

[1] https://www.kernel.org/doc/html/latest/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through

Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Link: https://lore.kernel.org/r/20200707200040.GA4525@embeddedor
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-10 08:55:17 +02:00
Gustavo A. R. Silva
2da3b53c78 usbip: Use fallthrough pseudo-keyword
Replace the existing /* fall through */ comments and its variants with
the new pseudo-keyword macro fallthrough[1]. Also, remove unnecessary
fall-through markings when it is the case.

[1] https://www.kernel.org/doc/html/latest/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through

Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Acked-by: Shuah Khan <skhan@linuxfoundation.org>
Link: https://lore.kernel.org/r/20200707195214.GA3932@embeddedor
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-09 18:06:35 +02:00
Alexander A. Klimov
e46d8cb5f1 USB: storage: replace HTTP links with HTTPS ones
Rationale:
Reduces attack surface on kernel devs opening the links for MITM
as HTTPS traffic is much harder to manipulate.

Deterministic algorithm:
For each file:
  If not .svg:
    For each line:
      If doesn't contain `\bxmlns\b`:
        For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`:
	  If neither `\bgnu\.org/license`, nor `\bmozilla\.org/MPL\b`:
            If both the HTTP and HTTPS versions
            return 200 OK and serve the same content:
              Replace HTTP with HTTPS.

Signed-off-by: Alexander A. Klimov <grandmaster@al2klimov.de>
Link: https://lore.kernel.org/r/20200708184903.17350-1-grandmaster@al2klimov.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-09 18:06:12 +02:00
Lee Jones
f535ad6c73 usb: host: xhci-plat: Do not define 'struct acpi_device_id' when !CONFIG_ACPI
Since ACPI_PTR() is used to NULLify the value when !CONFIG_ACPI,
struct usb_xhci_acpi_match becomes defined by unused.

Fixes the following W=1 kernel build warning(s):

 drivers/usb/host/xhci-plat.c:457:36: warning: ‘usb_xhci_acpi_match’ defined but not used [-Wunused-const-variable=]
 457 | static const struct acpi_device_id usb_xhci_acpi_match[] = {
 | ^~~~~~~~~~~~~~~~~~~

Cc: Mathias Nyman <mathias.nyman@intel.com>
Cc: Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20200706133341.476881-33-lee.jones@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-09 17:19:59 +02:00
Lee Jones
a6a6d06f33 usb: host: fhci-sched: Remove unused variable 'td'
'td' has been completely unused since the driver's inception in 2009.

Fixes the following W=1 kernel build warning(s):

 drivers/usb/host/fhci-sched.c: In function ‘fhci_queue_urb’:
 drivers/usb/host/fhci-sched.c:704:13: warning: variable ‘td’ set but not used [-Wunused-but-set-variable]
 704 | struct td *td;
 | ^~

Cc: Shlomi Gridish <gridish@freescale.com>
Cc: Jerry Huang <Chang-Ming.Huang@freescale.com>
Cc: Peter Barada <peterb@logicpd.com>
Cc: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20200706133341.476881-32-lee.jones@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-09 17:19:59 +02:00
Lee Jones
d45f72bc3b usb: host: fhci-tds: Remove unused variables 'buf' and 'extra_data'
Neither have been used since the driver's inception in 2009.

Fixes the following W=1 kernel build warning(s):

 drivers/usb/host/fhci-tds.c: In function ‘fhci_flush_bds’:
 drivers/usb/host/fhci-tds.c:472:6: warning: variable ‘buf’ set but not used [-Wunused-but-set-variable]
 472 | u32 buf;
 | ^~~
 drivers/usb/host/fhci-tds.c:470:6: warning: variable ‘extra_data’ set but not used [-Wunused-but-set-variable]
 470 | u16 extra_data;
 | ^~~~~~~~~~
 drivers/usb/host/fhci-tds.c: In function ‘fhci_flush_actual_frame’:
 drivers/usb/host/fhci-tds.c:527:6: warning: variable ‘extra_data’ set but not used [-Wunused-but-set-variable]
 527 | u16 extra_data;
 | ^~~~~~~~~~

Cc: Shlomi Gridish <gridish@freescale.com>
Cc: Jerry Huang <Chang-Ming.Huang@freescale.com>
Cc: Peter Barada <peterb@logicpd.com>
Cc: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20200706133341.476881-31-lee.jones@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-09 17:19:59 +02:00
Lee Jones
b789710de5 usb: dwc3: dwc3-qcom: Do not define 'struct acpi_device_id' when !CONFIG_ACPI
Since ACPI_PTR() is used to NULLify the value when !CONFIG_ACPI,
struct dwc3_qcom_acpi_match becomes defined by unused.

Also need to place the platform data obtained via the matching process
inside the #ifdef, else that becomes unused too.

Fixes the following W=1 kernel build warning(s):

 drivers/usb/dwc3/dwc3-qcom.c:761:36: warning: ‘dwc3_qcom_acpi_match’ defined but not used [-Wunused-const-variable=]
 761 | static const struct acpi_device_id dwc3_qcom_acpi_match[] = {
 | ^~~~~~~~~~~~~~~~~~~~

Cc: Andy Gross <agross@kernel.org>
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: Felipe Balbi <balbi@kernel.org>
Cc: Philipp Zabel <p.zabel@pengutronix.de>
Cc: linux-arm-msm@vger.kernel.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20200706133341.476881-30-lee.jones@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-09 17:19:59 +02:00
Lee Jones
6dba06ceee usb: host: ehci-platform: Do not define 'struct acpi_device_id' when !CONFIG_ACPI
Since ACPI_PTR() is used to NULLify the value when !CONFIG_ACPI,
struct ehci_acpi_match becomes defined by unused.

Fixes the following W=1 kernel build warning(s):

 drivers/usb/host/ehci-platform.c:478:36: warning: ‘ehci_acpi_match’ defined but not used [-Wunused-const-variable=]
 478 | static const struct acpi_device_id ehci_acpi_match[] = {
 | ^~~~~~~~~~~~~~~

Cc: Tony Prisk <linux@prisktech.co.nz>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Philipp Zabel <p.zabel@pengutronix.de>
Cc: Steven Brown <sbrown@cortland.com>
Cc: Hauke Mehrtens <hauke@hauke-m.de>
Cc: de Goede <hdegoede@redhat.com>
Cc: Michael Buesch <m@bues.ch>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20200706133341.476881-29-lee.jones@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-09 17:19:59 +02:00
Lee Jones
02ec8a098f usb: early: xhci-dbc: File headers are not good candidates for kerneldoc
Demote xhci-dbc's file header to a standard comment block.

Fixes the following W=1 kernel build warning(s):

 drivers/usb/early/xhci-dbc.c:10: warning: Function parameter or member 'fmt' not described in 'pr_fmt'

Cc: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20200706133341.476881-28-lee.jones@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-09 17:19:59 +02:00
Lee Jones
f0f705fcfe usb: early: xhci-dbc: Supply missing 'xhci-dbgp.h' headerfile
If the header file containing a function's prototype isn't included by
the sourcefile containing the associated function, the build system
complains of missing prototypes.

Fixes the following W=1 kernel build warning(s):

 drivers/usb/early/ehci-dbgp.c: In function ‘early_dbgp_write’:
 drivers/usb/early/ehci-dbgp.c:915:13: warning: variable ‘ret’ set but not used [-Wunused-but-set-variable]
 915 | int chunk, ret;
 | ^~~
 drivers/usb/early/xhci-dbc.c:600:12: warning: no previous prototype for ‘early_xdbc_parse_parameter’ [-Wmissing-prototypes]
 600 | int __init early_xdbc_parse_parameter(char *s)
 | ^~~~~~~~~~~~~~~~~~~~~~~~~~
 drivers/usb/early/xhci-dbc.c:653:12: warning: no previous prototype for ‘early_xdbc_setup_hardware’ [-Wmissing-prototypes]
 653 | int __init early_xdbc_setup_hardware(void)
 | ^~~~~~~~~~~~~~~~~~~~~~~~~
 drivers/usb/early/xhci-dbc.c:910:13: warning: no previous prototype for ‘early_xdbc_register_console’ [-Wmissing-prototypes]
 910 | void __init early_xdbc_register_console(void)
 | ^~~~~~~~~~~~~~~~~~~~~~~~~~~

Cc: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Reviewed-by: Jann Horn <jannh@google.com>
Link: https://lore.kernel.org/r/20200706133341.476881-27-lee.jones@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-09 17:19:59 +02:00
Lee Jones
beb368a4b9 usb: early: ehci-dbgp: Remove set but never checked variable 'ret'
'ret' hasn't  been checked since the driver's inception in 2009.

Fixes the following W=1 kernel build warning(s):

 drivers/usb/early/ehci-dbgp.c: In function ‘early_dbgp_write’:
 drivers/usb/early/ehci-dbgp.c:915:13: warning: variable ‘ret’ set but not used [-Wunused-but-set-variable]
 915 | int chunk, ret;
 | ^~~

Cc: Sumit Garg <sumit.garg@linaro.org>
Cc: Daniel Thompson <daniel.thompson@linaro.org>
Cc: Douglas Anderson <dianders@chromium.org>
Cc: Petr Mladek <pmladek@suse.com>
Cc: Yinghai Lu <yhlu.kernel@gmail.com>
Cc: Jason Wessel <jason.wessel@windriver.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Acked-by: "Eric W. Biederman" <ebiederm@xmission.com>
Link: https://lore.kernel.org/r/20200706133341.476881-26-lee.jones@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-09 17:19:58 +02:00
Lee Jones
e6b073dea3 usb: typec: ucsi: ucsi: Staticify and stop export of ucsi_init()
It isn't called from anywhere outside of ucsi.c.

Fixes the following W=1 kernel build warning(s):

 drivers/usb/typec/ucsi/ucsi.c:1005:5: warning: no previous prototype for ‘ucsi_init’ [-Wmissing-prototypes]
 1005 | int ucsi_init(struct ucsi *ucsi)
 | ^~~~~~~~~

Cc: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20200706133341.476881-25-lee.jones@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-09 17:19:58 +02:00
Lee Jones
1a4f38a622 usb: gadget: udc: max3420_udc: Remove set, but never checked variable 'addr'
Fixes the following W=1 kernel build warning(s):

 drivers/usb/gadget/udc/max3420_udc.c: In function ‘max3420_handle_setup’:
 drivers/usb/gadget/udc/max3420_udc.c:626:5: warning: variable ‘addr’ set but not used [-Wunused-but-set-variable]
 626 | u8 addr;
 | ^~~~

Cc: Felipe Balbi <balbi@kernel.org>
Cc: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Jassi Brar <jaswinder.singh@linaro.org>
Link: https://lore.kernel.org/r/20200706133341.476881-24-lee.jones@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-09 17:19:58 +02:00
Lee Jones
8834f60d6b usb: gadget: udc: mv_u3d_core: Remove unused static const 'driver_desc'
Looks like it's never been used.  Driver was mainlined in 2014.

Fixes the following W=1 kernel build warning(s):

 drivers/usb/gadget/udc/mv_u3d_core.c:35:19: warning: ‘driver_desc’ defined but not used [-Wunused-const-variable=]
 35 | static const char driver_desc[] = DRIVER_DESC;
 | ^~~~~~~~~~~

Cc: Felipe Balbi <balbi@kernel.org>
Cc: Jason Yan <yanaijie@huawei.com>
Cc: Yu Xu <yuxu@marvell.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20200706133341.476881-23-lee.jones@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-09 17:19:58 +02:00
Lee Jones
15ee5d03d5 usb: host: fotg210-hcd: Demote obvious misuse of kerneldoc to standard comment blocks
Only 2 functions attempted to use kerneldoc in this massive file.

Fixes the following W=1 kernel build warning(s):

 drivers/usb/host/fotg210-hcd.c: In function ‘fotg210_run’:
 drivers/usb/host/fotg210-hcd.c:5013:6: warning: variable ‘hcc_params’ set but not used [-Wunused-but-set-variable]
 drivers/usb/host/fotg210-hcd.c:5569: warning: Function parameter or member 'pdev' not described in 'fotg210_hcd_probe'
 drivers/usb/host/fotg210-hcd.c:5666: warning: Function parameter or member 'pdev' not described in 'fotg210_hcd_remove'
 drivers/usb/host/fotg210-hcd.c:5666: warning: Excess function parameter 'dev' description in 'fotg210_hcd_remove'

Cc: Yuan-Hsin Chen <yhchen@faraday-tech.com>
Cc: Feng-Hsin Chiang <john453@faraday-tech.com>
Cc: Po-Yu Chuang <ratbert.chuang@gmail.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20200706133341.476881-22-lee.jones@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-09 17:19:58 +02:00
Lee Jones
edd9357974 usb: host: bcma-hcd: Demote obvious misuse of kerneldoc to standard comment blocks
No attempt has been made to document either of the demoted functions here.

Fixes the following W=1 kernel build warning(s):

 drivers/usb/host/bcma-hcd.c:180: warning: Function parameter or member 'usb_dev' not described in 'bcma_hcd_usb20_old_arm_init'
 drivers/usb/host/bcma-hcd.c:268: warning: Function parameter or member 'bcma_hcd' not described in 'bcma_hcd_usb20_ns_init'

Cc: Chuhong Yuan <hslester96@gmail.com>
Cc: Hauke Mehrtens <hauke@hauke-m.de>
Cc: Felix Fietkau <nbd@openwrt.org>
Cc: Michael Buesch <m@bues.ch>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20200706133341.476881-21-lee.jones@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-09 17:19:58 +02:00
Lee Jones
b612b0fa8e usb: gadget: function: u_uac1_legacy: Demote obvious misuse of kerneldoc to standard comment blocks
No attempt has been made to document any of the demoted functions here.

Fixes the following W=1 kernel build warning(s):

 drivers/usb/gadget/function/u_uac1_legacy.c:30: warning: Function parameter or member 'i' not described in 'snd_interval_refine_set'
 drivers/usb/gadget/function/u_uac1_legacy.c:30: warning: Function parameter or member 'val' not described in 'snd_interval_refine_set'
 drivers/usb/gadget/function/u_uac1_legacy.c:93: warning: Function parameter or member 'snd' not described in 'playback_default_hw_params'
 drivers/usb/gadget/function/u_uac1_legacy.c:153: warning: Function parameter or member 'card' not described in 'u_audio_playback'
 drivers/usb/gadget/function/u_uac1_legacy.c:153: warning: Function parameter or member 'buf' not described in 'u_audio_playback'
 drivers/usb/gadget/function/u_uac1_legacy.c:153: warning: Function parameter or member 'count' not described in 'u_audio_playback'
 drivers/usb/gadget/function/u_uac1_legacy.c:197: warning: Function parameter or member 'card' not described in 'gaudio_open_snd_dev'
 drivers/usb/gadget/function/u_uac1_legacy.c:257: warning: Function parameter or member 'gau' not described in 'gaudio_close_snd_dev'
 drivers/usb/gadget/function/u_uac1_legacy.c:286: warning: Function parameter or member 'card' not described in 'gaudio_setup'
 drivers/usb/gadget/function/u_uac1_legacy.c:303: warning: Function parameter or member 'the_card' not described in 'gaudio_cleanup'

Cc: Felipe Balbi <balbi@kernel.org>
Cc: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20200706133341.476881-20-lee.jones@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-09 17:19:58 +02:00
Lee Jones
522514e599 usb: host: fotg210-hcd: Remove unused variable 'hcc_params'
The result is actually read into fotg210->caps->hcc_params.  No
need to popuate an unused varible with the unchecked return value
from fotg210_readl().

Fixes the following W=1 kernel build warning(s):

 drivers/usb/host/fotg210-hcd.c: In function ‘fotg210_run’:
 drivers/usb/host/fotg210-hcd.c:5013:6: warning: variable ‘hcc_params’ set but not used [-Wunused-but-set-variable]
 5013 | u32 hcc_params;
 | ^~~~~~~~~~

Cc: Yuan-Hsin Chen <yhchen@faraday-tech.com>
Cc: Feng-Hsin Chiang <john453@faraday-tech.com>
Cc: Po-Yu Chuang <ratbert.chuang@gmail.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20200706133341.476881-19-lee.jones@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-09 17:19:58 +02:00
Lee Jones
1a89683395 usb: host: ehci-fsl: Fix incorrectly named function argument
Fixes the following W=1 kernel build warning(s):

 drivers/usb/host/ehci-fsl.c:694: warning: Function parameter or member 'pdev' not described in 'fsl_ehci_drv_remove'
 drivers/usb/host/ehci-fsl.c:694: warning: Excess function parameter 'dev' description in 'fsl_ehci_drv_remove'

Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Randy Vinson <rvinson@mvista.com>
Cc: Dave Liu <daveliu@freescale.com>
Cc: Jerry Huang <Chang-Ming.Huang@freescale.com>
Cc: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20200706133341.476881-18-lee.jones@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-09 17:19:57 +02:00
Lee Jones
709ba38e46 usb: host: imx21-hcd: Demote function header which is clearly not kerneldoc
No attempt has been made to document the demoted function here.

Fixes the following W=1 kernel build warning(s):

 drivers/usb/host/imx21-hcd.c:233: warning: Function parameter or member 'imx21' not described in 'copy_to_dmem'
 drivers/usb/host/imx21-hcd.c:233: warning: Function parameter or member 'dmem_offset' not described in 'copy_to_dmem'
 drivers/usb/host/imx21-hcd.c:233: warning: Function parameter or member 'src' not described in 'copy_to_dmem'
 drivers/usb/host/imx21-hcd.c:233: warning: Function parameter or member 'count' not described in 'copy_to_dmem'

Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Pengutronix Kernel Team <kernel@pengutronix.de>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: NXP Linux Team <linux-imx@nxp.com>
Cc: Stephen Boyd <swboyd@chromium.org>
Cc: Jay Monkman <jtm@lopingdog.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20200706133341.476881-17-lee.jones@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-09 17:19:57 +02:00
Lee Jones
4ef2dfbdcd usb: gadget: udc: pch_udc: Fix a plethora of function documentation related issues
Ranging from missing descriptions and formatting mishaps to over-documenting
of missing arguments, likely due to bitrot.

Fixes the following W=1 kernel build warning(s):

 drivers/usb/gadget/udc/pch_udc.c:239: warning: Function parameter or member 'request' not described in 'pch_udc_stp_dma_desc'
 drivers/usb/gadget/udc/pch_udc.c:315: warning: Function parameter or member 'irq_work_fall' not described in 'pch_vbus_gpio_data'
 drivers/usb/gadget/udc/pch_udc.c:315: warning: Function parameter or member 'irq_work_rise' not described in 'pch_vbus_gpio_data'
 drivers/usb/gadget/udc/pch_udc.c:482: warning: Function parameter or member 'ep' not described in 'pch_udc_write_csr'
 drivers/usb/gadget/udc/pch_udc.c:482: warning: Excess function parameter 'addr' description in 'pch_udc_write_csr'
 drivers/usb/gadget/udc/pch_udc.c:498: warning: Function parameter or member 'ep' not described in 'pch_udc_read_csr'
 drivers/usb/gadget/udc/pch_udc.c:498: warning: Excess function parameter 'addr' description in 'pch_udc_read_csr'
 drivers/usb/gadget/udc/pch_udc.c:662: warning: Function parameter or member 'ep_in' not described in 'pch_udc_ep_set_bufsz'
 drivers/usb/gadget/udc/pch_udc.c:977: warning: Function parameter or member 'ep' not described in 'pch_udc_ep_enable'
 drivers/usb/gadget/udc/pch_udc.c:977: warning: Function parameter or member 'cfg' not described in 'pch_udc_ep_enable'
 drivers/usb/gadget/udc/pch_udc.c:977: warning: Excess function parameter 'regs' description in 'pch_udc_ep_enable'
 drivers/usb/gadget/udc/pch_udc.c:1010: warning: Function parameter or member 'ep' not described in 'pch_udc_ep_disable'
 drivers/usb/gadget/udc/pch_udc.c:1010: warning: Excess function parameter 'regs' description in 'pch_udc_ep_disable'
 drivers/usb/gadget/udc/pch_udc.c:1030: warning: Function parameter or member 'ep' not described in 'pch_udc_wait_ep_stall'
 drivers/usb/gadget/udc/pch_udc.c:1030: warning: Excess function parameter 'dev' description in 'pch_udc_wait_ep_stall'
 drivers/usb/gadget/udc/pch_udc.c:1341: warning: Function parameter or member 'data' not described in 'pch_vbus_gpio_irq'
 drivers/usb/gadget/udc/pch_udc.c:1341: warning: Excess function parameter 'dev' description in 'pch_vbus_gpio_irq'
 drivers/usb/gadget/udc/pch_udc.c:1365: warning: Function parameter or member 'vbus_gpio_port' not described in 'pch_vbus_gpio_init'
 drivers/usb/gadget/udc/pch_udc.c:1510: warning: Function parameter or member 'dev' not described in 'pch_udc_free_dma_chain'
 drivers/usb/gadget/udc/pch_udc.c:1510: warning: Function parameter or member 'req' not described in 'pch_udc_free_dma_chain'
 drivers/usb/gadget/udc/pch_udc.c:1717: warning: Function parameter or member 'usbep' not described in 'pch_udc_pcd_ep_disable'
 drivers/usb/gadget/udc/pch_udc.c:2006: warning: Excess function parameter 'halt' description in 'pch_udc_pcd_set_wedge'
 drivers/usb/gadget/udc/pch_udc.c:2756: warning: Function parameter or member 'pdev' not described in 'pch_udc_isr'
 drivers/usb/gadget/udc/pch_udc.c:2756: warning: Excess function parameter 'dev' description in 'pch_udc_isr'
 drivers/usb/gadget/udc/pch_udc.c:2906: warning: Function parameter or member 'dev' not described in 'init_dma_pools'
 drivers/usb/gadget/udc/pch_udc.c:2906: warning: Excess function parameter 'pdev' description in 'init_dma_pools'

Cc: Felipe Balbi <balbi@kernel.org>
Cc: Chuhong Yuan <hslester96@gmail.com>
Cc: LAPIS Semiconductor <tomoya-linux@dsn.lapis-semi.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20200706133341.476881-16-lee.jones@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-09 17:19:57 +02:00
Lee Jones
6327bf7580 usb: gadget: udc: mv_udc_core: Remove unused static const variable 'driver_desc'
Looks as though it's never been used.  Driver was introduced in 2014.

Fixes the following W=1 kernel build warning(s):

 drivers/usb/gadget/udc/mv_udc_core.c:56:19: warning: ‘driver_desc’ defined but not used [-Wunused-const-variable=]
 56 | static const char driver_desc[] = DRIVER_DESC;
 | ^~~~~~~~~~~

Cc: Felipe Balbi <balbi@kernel.org>
Cc: Chao Xie <chao.xie@marvell.com>
Cc: Neil Zhang <zhangwm@marvell.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20200706133341.476881-15-lee.jones@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-09 17:19:57 +02:00
Lee Jones
33a4eeb1a6 usb: host: r8a66597-hcd: Remove set, then over-written, but never used variable 'tmp'
Looks like it's been this way since the driver's inception in 2007.

Fixes the following W=1 kernel build warning(s):

 drivers/usb/host/r8a66597-hcd.c: In function ‘clear_all_buffer’:
 drivers/usb/host/r8a66597-hcd.c:478:6: warning: variable ‘tmp’ set but not used [-Wunused-but-set-variable]
 478 | u16 tmp;
 | ^~~

Cc: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20200706133341.476881-14-lee.jones@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-09 17:19:57 +02:00
Lee Jones
120d91dae6 usb: gadget: udc: lpc32xx_udc: Staticify 2 local functions
These are not used outside of this sourcefile, so make them static.

Fixes the following W=1 kernel build warning(s):

 drivers/usb/gadget/udc/lpc32xx_udc.c:1929:6: warning: no previous prototype for ‘udc_send_in_zlp’ [-Wmissing-prototypes]
 1929 | void udc_send_in_zlp(struct lpc32xx_udc *udc, struct lpc32xx_ep *ep)
 | ^~~~~~~~~~~~~~~
 drivers/usb/gadget/udc/lpc32xx_udc.c:1943:6: warning: no previous prototype for ‘udc_handle_eps’ [-Wmissing-prototypes]
 1943 | void udc_handle_eps(struct lpc32xx_udc *udc, struct lpc32xx_ep *ep)
 | ^~~~~~~~~~~~~~

Cc: Felipe Balbi <balbi@kernel.org>
Cc: Sylvain Lemieux <slemieux.tyco@gmail.com>
Cc: Kevin Wells <kevin.wells@nxp.com>
Cc: Roland Stigge <stigge@antcom.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Vladimir Zapolskiy <vz@mleia.com>
Link: https://lore.kernel.org/r/20200706133341.476881-13-lee.jones@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-09 17:19:57 +02:00