Commit graph

932869 commits

Author SHA1 Message Date
Hans de Goede
6dd10c47e9 ACPI: hotplug: PCI: Use the new acpi_evaluate_reg() helper
Use the new acpi_evaluate_reg() helper in the acpiphp_glue.c code.

Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-05-09 11:40:25 +02:00
Hans de Goede
132565d8ec ACPI: utils: Add acpi_evaluate_reg() helper
With a recent fix to the pinctrl-cherryview driver we now have
2 drivers open-coding the parameter building / passing for calling
_REG on an ACPI handle.

Add a helper for this, so that these 2 drivers can be converted to this
helper.

Suggested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-05-09 11:40:25 +02:00
Zheng Zengkai
8e22c2e4a6 ACPI: debug: Make two functions static
Fix sparse warnings:

drivers/acpi/acpi_dbg.c:748:12: warning:
 symbol 'acpi_aml_init' was not declared. Should it be static?
drivers/acpi/acpi_dbg.c:774:13: warning:
 symbol 'acpi_aml_exit' was not declared. Should it be static?

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-05-09 11:33:07 +02:00
Hanjun Guo
95722237cb ACPI: sleep: Put the FACS table after using it
Put the FACS table after using it to release the table
mapping.

Signed-off-by: Hanjun Guo <guohanjun@huawei.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-05-09 11:29:17 +02:00
Hanjun Guo
ead7ba1362 ACPI: scan: Put SPCR and STAO table after using it
The SPCR and STAO table needs to be released after
using it.

Signed-off-by: Hanjun Guo <guohanjun@huawei.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-05-09 11:29:17 +02:00
Hanjun Guo
f900bf4951 ACPI: EC: Put the ACPI table after using it
The embedded controller boot resources table needs to be
released after using it.

Signed-off-by: Hanjun Guo <guohanjun@huawei.com>
[ rjw: avoid adding a label in acpi_ec_ecdt_start() ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-05-09 11:29:17 +02:00
Hanjun Guo
11c7bdffc7 ACPI: APEI: Put the HEST table for error path
hest_tab will be used after hest_init(), but we need to release
it for error path.

Signed-off-by: Hanjun Guo <guohanjun@huawei.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-05-09 11:29:17 +02:00
Hanjun Guo
43f595dcab ACPI: APEI: Put the error record serialization table for error path
The mapped error record serialization table needs to be
released for error path of erst_init().

Signed-off-by: Hanjun Guo <guohanjun@huawei.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-05-09 11:29:17 +02:00
Hanjun Guo
541156a38f ACPI: APEI: Put the error injection table for error path and module exit
The mapped error injection table will be used after einj_init()
for debugfs, but it should be released for module exit and error
path of einj_init().

Signed-off-by: Hanjun Guo <guohanjun@huawei.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-05-09 11:29:17 +02:00
Hanjun Guo
3d995f88ad ACPI: APEI: Put the boot error record table after parsing
The mapped boot error record table is not used after
bert_init(), release it.

Signed-off-by: Hanjun Guo <guohanjun@huawei.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-05-09 11:29:17 +02:00
Hanjun Guo
fe4e1a576e ACPI: watchdog: Put the watchdog action table after parsing
The mapped watchdog action table should be released after the
successfully parsing, and the failure path in the driver
initialization.

Signed-off-by: Hanjun Guo <guohanjun@huawei.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-05-09 11:29:17 +02:00
Hanjun Guo
f8690227dd ACPI: LPIT: Put the low power idle table after using it
The mapped LPIT table is not used for runtime after init,
put the ACPI table to release the table mapping.

Signed-off-by: Hanjun Guo <guohanjun@huawei.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-05-09 11:29:16 +02:00
Bob Moore
2d2feb6813 ACPICA: Update version to 20200430
ACPICA commit c00a5cd99fa3fe6cd053a2a1a557e54b4fea26f7

Version 20200430.

Link: c00a5cd9
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Erik Kaneda <erik.kaneda@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-05-09 10:55:54 +02:00
Erik Kaneda
e3f7ae9ebb ACPICA: Fix required parameters for _NIG and _NIH
ACPICA commit 4b0e043386c7e698bea9e862f60a388647f56622

Previously, there was a mixup where _NIG required one parameter and
_NIH required zero parameters. This changes swaps these parameter
requirements. Now this change requires _NIH to be called with one
parameter and _NIG requires zero.

Link: 4b0e0433
Reported-by: Paul A Lohr <paul.a.lohr@intel.com>
Signed-off-by: Erik Kaneda <erik.kaneda@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-05-09 10:55:54 +02:00
Erik Kaneda
6bfe5344b2 ACPICA: Dispatcher: add status checks
ACPICA commit 3244c1eeba9f9fb9ccedb875f7923a3d85e0c6aa

The status chekcs are used to to avoid NULL pointer dereference on
field objects

Link: 3244c1ee
Reported-by: Kurt Kennett <kurt_kennett@hotmail.com>
Signed-off-by: Erik Kaneda <erik.kaneda@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-05-09 10:55:54 +02:00
Erik Kaneda
034fdaa508 ACPICA: Disassembler: ignore AE_ALREADY_EXISTS status when parsing create operators
ACPICA commit cd66d0a50fdc9cc4dcd998e08e7aa3c4154bea2d

Disassembler is intended to emit existing ASL code as-is. Therefore,
error messages emitted during disassembly should be ignored or
handled in a way such that the disassembler can continue to parse the
AML. This change ignores AE_ALREADY_EXISTS errors during the deferred
Op parsing for create operators in order to complete parsing ASL
termlists.

Link: cd66d0a5
Signed-off-by: Erik Kaneda <erik.kaneda@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-05-09 10:55:54 +02:00
Erik Kaneda
2c1779f5ad ACPICA: Move acpi_gbl_next_cmd_num definition to acglobal.h
ACPICA commit 8296a24f33984c26a61103c590b049de3c9b61ff

This commit cleans up the code by moving the global definition out of
dbhistry.c to acglobal.h.

Link: 8296a24f
Reported-by: Hulk Robot <hulkci@huawei.com>
Suggested-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: Erik Kaneda <erik.kaneda@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-05-09 10:55:53 +02:00
Yue Haibing
f5308a82e8 ACPICA: Make acpi_protocol_lengths static
ACPICA commit 0ebacf12b8ca66ce6d3fce4d349b3f2448da18cb

A linux-based static analyzer (sparse) caught this as a warning.
Making this variable static will result in better optimizations and
ensure that this variable does not get used outside of this file.

Signed-off-by: Yue Haibing <yuehaibing@huawei.com>
[ek: commit message]

Link: 0ebacf12
Signed-off-by: Erik Kaneda <erik.kaneda@intel.com>
Signed-off-by: Yue Haibing <yuehaibing@huawei.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-05-09 10:55:53 +02:00
Tariq Toukan
28bff09518 net/mlx5e: Enhance ICOSQ WQE info fields
The same WQE opcode might be used in different ICOSQ flows
and WQE types.
To have a better distinguishability, replace it with an enum that
better indicates the WQE type and flow it is used for.

Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Reviewed-by: Maxim Mikityanskiy <maximmi@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-05-09 01:05:42 -07:00
Tariq Toukan
6b74f60ef5 net/mlx5: Accel, Remove unnecessary header include
The include of Ethernet driver header in core is not needed
and actually wrong.
Remove it.

Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Reviewed-by: Maxim Mikityanskiy <maximmi@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-05-09 01:05:42 -07:00
Tariq Toukan
41a8e4ebb4 net/mlx5e: Use struct assignment for WQE info updates
Struct assignment looks more clean, and implies resetting
the not assigned fields to zero, instead of holding values
from older ring cycles.

Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Reviewed-by: Maxim Mikityanskiy <maximmi@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-05-09 01:05:41 -07:00
Tariq Toukan
05dfd57082 net/mlx5e: Take TX WQE info structures out of general EN header
Into the txrx header file.
The mlx5e_sq_wqe_info structure describes WQE info for the ICOSQ,
rename it to better reflect this.

Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Reviewed-by: Maxim Mikityanskiy <maximmi@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-05-09 01:05:41 -07:00
Tariq Toukan
f713ce1de8 net/mlx5e: kTLS, Do not fill edge for the DUMP WQEs in TX flow
Every single DUMP WQE resides in a single WQEBB.
As the pi is calculated per each one separately, there is
no real need for a contiguous room for them, allow them to populate
different WQ fragments.
This reduces WQ waste and improves its utilization.

Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Reviewed-by: Maxim Mikityanskiy <maximmi@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-05-09 01:05:41 -07:00
Tariq Toukan
ab1e0ce99d net/mlx5e: kTLS, Fill work queue edge separately in TX flow
For the static and progress context params WQEs, do the edge
filling separately.
This improves the WQ utilization, code readability, and reduces
the chance of future bugs.

Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Reviewed-by: Maxim Mikityanskiy <maximmi@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-05-09 01:05:40 -07:00
Maxim Mikityanskiy
714c88a38b net/mlx5e: Split TX acceleration offloads into two phases
After previous modifications, the offloads are no longer called one by
one, the pi is calculated and the wqe is cleared on between of TLS and
IPSEC offloads, which doesn't quite fit mlx5e_accel_handle_tx's purpose.

This patch splits mlx5e_accel_handle_tx into two functions that
correspond to two logical phases of running offloads:

1. Before fetching a WQE. Here runs the code that can post WQEs on its
own, before the main WQE is fetched. It's the main part of TLS offload.

2. After fetching a WQE. Here runs the code that updates the WQE's
fields, but can't post other WQEs any more. It's a minor part of TLS
offload that sets the tisn field in the cseg, and eseg-based offloads
(currently IPSEC, and later patches will move GENEVE and checksum
offloads there, too).

It allows to make mlx5e_xmit take care of all actions needed to transmit
a packet in the right order, improve the structure of the code and
reduce unnecessary operations. The structure will be further improved in
the following patches (all eseg-based offloads will be moved to a single
place, and reserving space for the main WQE will happen between phase 1
and phase 2 of offloads to eliminate unneeded data movements).

Signed-off-by: Maxim Mikityanskiy <maximmi@mellanox.com>
Reviewed-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-05-09 01:05:40 -07:00
Maxim Mikityanskiy
5546100038 net/mlx5e: Update UDP fields of the SKB for GSO first
mlx5e_udp_gso_handle_tx_skb updates the length field in the UDP header
in case of GSO. It doesn't interfere with other offloads, so do it first
to simplify further restructuring of the code. This way we'll make all
independent modifications to the SKB before starting to work with WQEs.

Signed-off-by: Maxim Mikityanskiy <maximmi@mellanox.com>
Reviewed-by: Raed Salem <raeds@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-05-09 01:05:40 -07:00
Maxim Mikityanskiy
2eeb6e3841 net/mlx5e: Make TLS offload independent of wqe and pi
TLS offload may write a 32-bit field (tisn) to the cseg of the WQE. To
do that, it receives pi and wqe pointers. As TLS offload may also send
additional WQEs, it has to update pi and wqe, and in many cases it even
doesn't use pi calculated before and wqe zeroed before and does it
itself. Also, mlx5e_sq_xmit has to copy the whole cseg if it goes to the
mlx5e_fill_sq_frag_edge flow. This all is not efficient.

It's more efficient to do the following:

1. Just return tisn from TLS offload and make the caller fill it in a
more appropriate place.

2. Calculate pi and clear wqe after calling TLS offload.

3. If TLS offload has to send WQEs, calculate pi and clear wqe just
before that. It's already done in all places anyway, so this commit
allows to remove some redundant memsets and calls.

Copying of cseg will be eliminated in one of the following commits, and
all other stuff is done here.

Signed-off-by: Maxim Mikityanskiy <maximmi@mellanox.com>
Reviewed-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-05-09 01:05:40 -07:00
Maxim Mikityanskiy
0bdb078c74 net/mlx5e: Pass only eseg to IPSEC offload
IPSEC offload needs to modify the eseg of the WQE that is being filled,
but it receives a pointer to the whole WQE. To make the contract
stricter, pass only the pointer to the eseg of that WQE. This commit is
preparation for the following refactoring of offloads in the TX path and
for the MPWQE support.

Signed-off-by: Maxim Mikityanskiy <maximmi@mellanox.com>
Reviewed-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-05-09 01:05:39 -07:00
Maxim Mikityanskiy
3df711db05 net/mlx5e: Return void from mlx5e_sq_xmit and mlx5i_sq_xmit
mlx5e_sq_xmit and mlx5i_sq_xmit always return NETDEV_TX_OK. Drop the
return value to simplify the code.

Signed-off-by: Maxim Mikityanskiy <maximmi@mellanox.com>
Reviewed-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-05-09 01:05:39 -07:00
Maxim Mikityanskiy
7f8546f3f0 net/mlx5e: Unify checks of TLS offloads
Both INNOVA and ConnectX TLS offloads perform the same checks in the
beginning. Unify them to reduce repeating code. Do WARN_ON_ONCE on
netdev mismatch and finish with an error in both offloads, not only in
the ConnectX one.

Signed-off-by: Maxim Mikityanskiy <maximmi@mellanox.com>
Reviewed-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-05-09 01:05:39 -07:00
Maxim Mikityanskiy
f02bac9ad6 net/mlx5e: Return bool from TLS and IPSEC offloads
TLS and IPSEC offloads currently return struct sk_buff *, but the value
is either NULL or the same skb that was passed as a parameter. Return
bool instead to provide stronger guarantees to the calling code (it
won't need to support handling a different SKB that could be potentially
returned before this change) and to simplify restructuring this code in
the following commits.

Signed-off-by: Maxim Mikityanskiy <maximmi@mellanox.com>
Reviewed-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-05-09 01:05:39 -07:00
Saeed Mahameed
76cd622fe2 Merge branch 'mlx5-next' of git://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux
This merge includes updates to bonding driver needed for the rdma stack,
to avoid conflicts with the RDMA branch.

Maor Gottlieb Says:

====================
Bonding: Add support to get xmit slave

The following series adds support to get the LAG master xmit slave by
introducing new .ndo - ndo_get_xmit_slave. Every LAG module can
implement it and it first implemented in the bond driver.
This is follow-up to the RFC discussion [1].

The main motivation for doing this is for drivers that offload part
of the LAG functionality. For example, Mellanox Connect-X hardware
implements RoCE LAG which selects the TX affinity when the resources
are created and port is remapped when it goes down.

The first part of this patchset introduces the new .ndo and add the
support to the bonding module.

The second part adds support to get the RoCE LAG xmit slave by building
skb of the RoCE packet based on the AH attributes and call to the new
.ndo.

The third part change the mlx5 driver driver to set the QP's affinity
port according to the slave which found by the .ndo.
====================

Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-05-09 01:05:30 -07:00
Andrey Konovalov
6e50764420 usb: raw-gadget: fix return value of ep read ioctls
They must return the number of bytes transferred during the data stage.

Fixes: 068fbff4f8 ("usb: raw-gadget: Fix copy_to/from_user() checks")
Fixes: f2c2e71764 ("usb: gadget: add raw-gadget interface")
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
2020-05-09 11:05:09 +03:00
Arnd Bergmann
4748d39639 usb: dwc3: select USB_ROLE_SWITCH
Calling into the role switch API requires that these functions
are loaded, if they are in a loadable module and dwc3 itself
is built-in, this produces a link error:

drivers/usb/dwc3/drd.o: In function `dwc3_usb_role_switch_get':
drd.c:(.text+0x26): undefined reference to `usb_role_switch_get_drvdata'
drivers/usb/dwc3/drd.o: In function `dwc3_usb_role_switch_set':
drd.c:(.text+0x97): undefined reference to `usb_role_switch_get_drvdata'
drivers/usb/dwc3/drd.o: In function `dwc3_drd_init':
drd.c:(.text+0x1ca7): undefined reference to `usb_role_switch_register'
drivers/usb/dwc3/drd.o: In function `dwc3_drd_exit':
drd.c:(.text+0x1e92): undefined reference to `usb_role_switch_unregister'

Select the USB_ROLE_SWITCH symbol from dwc3 in that configuration.

Fixes: 0339f7fbc8 ("usb: dwc3: fix up for role switch API change")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
2020-05-09 11:05:09 +03:00
Wei Yongjun
e27d4b30b7 usb: gadget: legacy: fix error return code in gncm_bind()
If 'usb_otg_descriptor_alloc()' fails, we must return a
negative error code -ENOMEM, not 0.

Fixes: 1156e91dd7 ("usb: gadget: ncm: allocate and init otg descriptor by otg capabilities")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
2020-05-09 11:05:08 +03:00
Wei Yongjun
e8f7f9e349 usb: gadget: legacy: fix error return code in cdc_bind()
If 'usb_otg_descriptor_alloc()' fails, we must return a
negative error code -ENOMEM, not 0.

Fixes: ab6796ae98 ("usb: gadget: cdc2: allocate and init otg descriptor by otg capabilities")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
2020-05-09 11:05:08 +03:00
Masahiro Yamada
d13cce7579 usb: gadget: legacy: fix redundant initialization warnings
Fix the following cppcheck warnings:

drivers/usb/gadget/legacy/inode.c:1364:8: style: Redundant initialization for 'value'. The initialized value is overwritten$
 value = -EOPNOTSUPP;
       ^
drivers/usb/gadget/legacy/inode.c:1331:15: note: value is initialized
 int    value = -EOPNOTSUPP;
              ^
drivers/usb/gadget/legacy/inode.c:1364:8: note: value is overwritten
 value = -EOPNOTSUPP;
       ^
drivers/usb/gadget/legacy/inode.c:1817:8: style: Redundant initialization for 'value'. The initialized value is overwritten$
 value = -EINVAL;
       ^
drivers/usb/gadget/legacy/inode.c:1787:18: note: value is initialized
 ssize_t   value = len, length = len;
                 ^
drivers/usb/gadget/legacy/inode.c:1817:8: note: value is overwritten
 value = -EINVAL;
       ^
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
2020-05-09 11:05:08 +03:00
Thierry Reding
0534d40160 usb: gadget: tegra-xudc: Fix idle suspend/resume
When the XUDC device is idle (i.e. powergated), care must be taken not
to access any registers because that would lead to a crash.

Move the call to tegra_xudc_device_mode_off() into the same conditional
as the tegra_xudc_powergate() call to make sure we only force device
mode off if the XUDC is actually powered up.

Fixes: 49db427232 ("usb: gadget: Add UDC driver for tegra XUSB device mode controller")
Acked-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
2020-05-09 11:05:08 +03:00
Christophe JAILLET
ccaef7e6e3 usb: gadget: net2272: Fix a memory leak in an error handling path in 'net2272_plat_probe()'
'dev' is allocated in 'net2272_probe_init()'. It must be freed in the error
handling path, as already done in the remove function (i.e.
'net2272_plat_remove()')

Fixes: 90fccb529d ("usb: gadget: Gadget directory cleanup - group UDC drivers")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
2020-05-09 11:05:08 +03:00
Christophe JAILLET
f058764d19 usb: phy: twl6030-usb: Fix a resource leak in an error handling path in 'twl6030_usb_probe()'
A call to 'regulator_get()' is hidden in 'twl6030_usb_ldo_init()'. A
corresponding put must be performed in the error handling path, as
already done in the remove function.

While at it, also move a 'free_irq()' call in the error handling path in
order to be consistent.

Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
2020-05-09 11:05:08 +03:00
Peter Chen
95cd7dc47a usb: cdns3: gadget: prev_req->trb is NULL for ep0
And there are no multiple TRBs on EP0 and WA1 workaround,
so it doesn't need to change TRB for EP0. It fixes below oops.

configfs-gadget gadget: high-speed config #1: b
android_work: sent uevent USB_STATE=CONFIGURED
Unable to handle kernel read from unreadable memory at virtual address 0000000000000008
Mem abort info:
android_work: sent uevent USB_STATE=DISCONNECTED
  ESR = 0x96000004
  EC = 0x25: DABT (current EL), IL = 32 bits

  SET = 0, FnV = 0
  EA = 0, S1PTW = 0
Data abort info:
  ISV = 0, ISS = 0x00000004
  CM = 0, WnR = 0
user pgtable: 4k pages, 48-bit VAs, pgdp=00000008b5bb7000
[0000000000000008] pgd=0000000000000000
Internal error: Oops: 96000004 [#1] PREEMPT SMP
Modules linked in:
CPU: 2 PID: 430 Comm: HwBinder:401_1 Not tainted 5.4.24-06071-g6fa8921409c1-dirty #77
Hardware name: Freescale i.MX8QXP MEK (DT)
pstate: 60400085 (nZCv daIf +PAN -UAO)
pc : cdns3_gadget_ep_dequeue+0x1d4/0x270
lr : cdns3_gadget_ep_dequeue+0x48/0x270
sp : ffff800012763ba0
x29: ffff800012763ba0 x28: ffff00082c653c00
x27: 0000000000000000 x26: ffff000068fa7b00
x25: ffff0000699b2000 x24: ffff00082c6ac000
x23: ffff000834f0a480 x22: ffff000834e87b9c
x21: 0000000000000000 x20: ffff000834e87800
x19: ffff000069eddc00 x18: 0000000000000000
x17: 0000000000000000 x16: 0000000000000000
x15: 0000000000000000 x14: 0000000000000000
x13: 0000000000000000 x12: 0000000000000001
x11: ffff80001180fbe8 x10: 0000000000000001
x9 : ffff800012101558 x8 : 0000000000000001
x7 : 0000000000000006 x6 : ffff000835d9c668
x5 : ffff000834f0a4c8 x4 : 0000000096000000
x3 : 0000000000001810 x2 : 0000000000000000
x1 : ffff800024bd001c x0 : 0000000000000001
Call trace:
 cdns3_gadget_ep_dequeue+0x1d4/0x270
 usb_ep_dequeue+0x34/0xf8
 composite_dev_cleanup+0x154/0x170
 configfs_composite_unbind+0x6c/0xa8
 usb_gadget_remove_driver+0x44/0x70
 usb_gadget_unregister_driver+0x74/0xe0
 unregister_gadget+0x28/0x58
 gadget_dev_desc_UDC_store+0x80/0x110
 configfs_write_file+0x1e0/0x2a0
 __vfs_write+0x48/0x90
 vfs_write+0xe4/0x1c8
 ksys_write+0x78/0x100
 __arm64_sys_write+0x24/0x30
 el0_svc_common.constprop.0+0x74/0x168
 el0_svc_handler+0x34/0xa0
 el0_svc+0x8/0xc
Code: 52830203 b9407660 f94042e4 11000400 (b9400841)
---[ end trace 1574516e4c1772ca ]---
Kernel panic - not syncing: Fatal exception
SMP: stopping secondary CPUs
Kernel Offset: disabled
CPU features: 0x0002,20002008
Memory Limit: none
Rebooting in 5 seconds..

Fixes: f616c3bda4 ("usb: cdns3: Fix dequeue implementation")
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
2020-05-09 11:05:08 +03:00
Christophe JAILLET
19b94c1f9c usb: gadget: audio: Fix a missing error return value in audio_bind()
If 'usb_otg_descriptor_alloc()' fails, we must return an error code, not 0.

Fixes: 56023ce0fd ("usb: gadget: audio: allocate and init otg descriptor by otg capabilities")
Reviewed-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
2020-05-09 11:05:02 +03:00
Andy Shevchenko
066c095934 usb: dwc3: pci: Enable extcon driver for Intel Merrifield
Intel Merrifield provides a DR support via PMIC which has its own
extcon driver.

Add a property string to link to that driver.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
2020-05-09 11:04:50 +03:00
John Stultz
00e21763f2 dwc3: Remove check for HWO flag in dwc3_gadget_ep_reclaim_trb_sg()
The check for the HWO flag in dwc3_gadget_ep_reclaim_trb_sg()
causes us to break out of the loop before we call
dwc3_gadget_ep_reclaim_completed_trb(), which is what likely
should be clearing the HWO flag.

This can cause odd behavior where we never reclaim all the trbs
in the sg list, so we never call giveback on a usb req, and that
will causes transfer stalls.

This effectively resovles the adb stalls seen on HiKey960
after userland changes started only using AIO in adbd.

Cc: YongQin Liu <yongqin.liu@linaro.org>
Cc: Anurag Kumar Vulisha <anurag.kumar.vulisha@xilinx.com>
Cc: Yang Fei <fei.yang@intel.com>
Cc: Thinh Nguyen <thinhn@synopsys.com>
Cc: Tejas Joglekar <tejas.joglekar@synopsys.com>
Cc: Andrzej Pietrasiewicz <andrzej.p@collabora.com>
Cc: Jack Pham <jackp@codeaurora.org>
Cc: Josh Gao <jmgao@google.com>
Cc: Todd Kjos <tkjos@google.com>
Cc: Felipe Balbi <balbi@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: linux-usb@vger.kernel.org
Cc: stable@vger.kernel.org #4.20+
Signed-off-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
2020-05-09 11:04:49 +03:00
Paolo Abeni
57644431a6 net: ipv4: really enforce backoff for redirects
In commit b406472b5a ("net: ipv4: avoid mixed n_redirects and
rate_tokens usage") I missed the fact that a 0 'rate_tokens' will
bypass the backoff algorithm.

Since rate_tokens is cleared after a redirect silence, and never
incremented on redirects, if the host keeps receiving packets
requiring redirect it will reply ignoring the backoff.

Additionally, the 'rate_last' field will be updated with the
cadence of the ingress packet requiring redirect. If that rate is
high enough, that will prevent the host from generating any
other kind of ICMP messages

The check for a zero 'rate_tokens' value was likely a shortcut
to avoid the more complex backoff algorithm after a redirect
silence period. Address the issue checking for 'n_redirects'
instead, which is incremented on successful redirect, and
does not interfere with other ICMP replies.

Fixes: b406472b5a ("net: ipv4: avoid mixed n_redirects and rate_tokens usage")
Reported-and-tested-by: Colin Walters <walters@redhat.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-05-08 22:52:57 -07:00
Colin Ian King
5eb2bcf247 net: lio_core: remove redundant assignment to variable tx_done
The variable tx_done is being assigned with a value that is never read
as the function returns a few statements later.  The assignment is
redundant and can be removed.

Addresses-Coverity: ("Unused value")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-05-08 22:46:51 -07:00
Colin Ian King
6a9c9548ee net/atheros: remove redundant assignment to variable size
The variable size is being assigned with a value that is never read,
the assignment is redundant and cab be removed.

Addresses-Coverity: ("Unused value")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-05-08 22:46:36 -07:00
Colin Ian King
d8f05e9891 cnic: remove redundant assignment to variable ret
The variable ret is being assigned with a value that is never read,
the assignment is redundant and can be removed.

Addresses-Coverity: ("Unused value")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-05-08 22:46:16 -07:00
Colin Ian King
4d2c999408 net: tg3: tidy up loop, remove need to compute off with a multiply
Currently the value for 'off' is computed using a multiplication and
a couple of statements later off is being incremented by len and
this value is never read.  Clean up the code by removing the
multiplication and just increment off by len on each iteration.

Addresses-Coverity: ("Unused value")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-05-08 22:45:54 -07:00
Jakub Kicinski
9dfff80280 Merge branch 'r8169-sync-few-functionalities-with-vendor-driver'
Heiner Kallweit says:

====================
r8169: sync few functionalities with vendor driver

Add few helpers (with names copied from vendor drivers) to make clearer
what the respective code is doing. In addition improve reset preparation
for chips from RTL8168g.
====================

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-05-08 22:42:49 -07:00