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Remove header size knowledge from me and txe hw layers,
this requires to change the write handler to accept
header and its length as well as data and its length.
HBM messages are fixed to use basic header, hence we add mei_hbm2slots()
that converts HBM message length and mei message header,
while mei_data2slots() converts data length directly to the slots.
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The call trace:
XXX/1910 is trying to acquire lock:
(&mm->mmap_sem){++++++}, at: [<ffffffff97008c87>] might_fault+0x57/0xb0
but task is already holding lock:
(&idev->info_lock){+.+...}, at: [<ffffffffc0638a06>] uio_write+0x46/0x130 [uio]
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #1 (&idev->info_lock){+.+...}:
[<ffffffff96f31fc9>] lock_acquire+0x99/0x1e0
[<ffffffff975edad3>] mutex_lock_nested+0x93/0x410
[<ffffffffc063873d>] uio_mmap+0x2d/0x170 [uio]
[<ffffffff97016b58>] mmap_region+0x428/0x650
[<ffffffff97017138>] do_mmap+0x3b8/0x4e0
[<ffffffff96ffaba3>] vm_mmap_pgoff+0xd3/0x120
[<ffffffff97015261>] SyS_mmap_pgoff+0x1f1/0x270
[<ffffffff96e387c2>] SyS_mmap+0x22/0x30
[<ffffffff975ff315>] system_call_fastpath+0x1c/0x21
-> #0 (&mm->mmap_sem){++++++}:
[<ffffffff96f30e9c>] __lock_acquire+0xdac/0x15f0
[<ffffffff96f31fc9>] lock_acquire+0x99/0x1e0
[<ffffffff97008cb4>] might_fault+0x84/0xb0
[<ffffffffc0638a74>] uio_write+0xb4/0x130 [uio]
[<ffffffff9706ffa3>] vfs_write+0xc3/0x1f0
[<ffffffff97070e2a>] SyS_write+0x8a/0x100
[<ffffffff975ff315>] system_call_fastpath+0x1c/0x21
other info that might help us debug this:
Possible unsafe locking scenario:
CPU0 CPU1
---- ----
lock(&idev->info_lock);
lock(&mm->mmap_sem);
lock(&idev->info_lock);
lock(&mm->mmap_sem);
*** DEADLOCK ***
1 lock held by XXX/1910:
#0: (&idev->info_lock){+.+...}, at: [<ffffffffc0638a06>] uio_write+0x46/0x130 [uio]
stack backtrace:
CPU: 0 PID: 1910 Comm: XXX Kdump: loaded Not tainted #1
Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 05/19/2017
Call Trace:
[<ffffffff975e9211>] dump_stack+0x19/0x1b
[<ffffffff975e260a>] print_circular_bug+0x1f9/0x207
[<ffffffff96f2f6a7>] check_prevs_add+0x957/0x960
[<ffffffff96f30e9c>] __lock_acquire+0xdac/0x15f0
[<ffffffff96f2fb19>] ? mark_held_locks+0xb9/0x140
[<ffffffff96f31fc9>] lock_acquire+0x99/0x1e0
[<ffffffff97008c87>] ? might_fault+0x57/0xb0
[<ffffffff97008cb4>] might_fault+0x84/0xb0
[<ffffffff97008c87>] ? might_fault+0x57/0xb0
[<ffffffffc0638a74>] uio_write+0xb4/0x130 [uio]
[<ffffffff9706ffa3>] vfs_write+0xc3/0x1f0
[<ffffffff9709349c>] ? fget_light+0xfc/0x510
[<ffffffff97070e2a>] SyS_write+0x8a/0x100
[<ffffffff975ff315>] system_call_fastpath+0x1c/0x21
Signed-off-by: Xiubo Li <xiubli@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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There are two bugs here. First the error codes weren't set on several
paths. And second, if the call to request_threaded_irq() inside
uio_register_device() fails then it would lead to a double free when
we call uio_unregister_device() inside pruss_cleanup().
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The sleep wake-up refactoring that I introduced in
commit c7e1b4059075 ("tty: serial: exar: Relocate sleep wake-up handling")
did not account for devices with a slave device on the expansion port.
This patch pokes the INT0 register in the slave device, if present, in
order to ensure that MSI interrupts don't get permanently "stuck"
because of a sleep wake-up interrupt as described here:
commit 2c0ac5b48a35 ("serial: exar: Fix stuck MSIs")
This also converts an ioread8() to readb() in order to provide visual
consistency with the MMIO-only accessors used elsewhere in the driver.
Reported-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Aaron Sierra <asierra@xes-inc.com>
Fixes: c7e1b4059075 ("tty: serial: exar: Relocate sleep wake-up handling")
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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If number of isa and pci boards exceed NUM_BOARDS on the path
rp_init()->init_PCI()->register_PCI() then buffer overwrite occurs
in register_PCI() on assign rcktpt_io_addr[i].
The patch adds check on upper bound for index of registered
board in register_PCI.
Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: Anton Vasilyev <vasilyev@ispras.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Add ACPI identifier HID for UART DW 8250 on Broadcom SoCs
to match the HID passed through ACPI tables to enable
UART controller.
Signed-off-by: Srinath Mannam <srinath.mannam@broadcom.com>
Reviewed-by: Vladimir Olovyannikov <vladimir.olovyannikov@broadcom.com>
Tested-by: Vladimir Olovyannikov <vladimir.olovyannikov@broadcom.com>
Reviewed-by: Ray Jui <ray.jui@broadcom.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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dw8250_set_termios() doesn't set baud rate if the arg "old ktermios" is
NULL. This happens during resume.
Call Trace:
...
[ 54.928108] dw8250_set_termios+0x162/0x170
[ 54.928114] serial8250_set_termios+0x17/0x20
[ 54.928117] uart_change_speed+0x64/0x160
[ 54.928119] uart_resume_port
...
So the baud rate is not restored after S3 and breaks the apps who use
UART, for example, console and bluetooth etc.
We address this issue by setting the baud rate irrespective of arg
"old", just like the drivers for other 8250 IPs. This is tested with
Intel Broxton platform.
Signed-off-by: Chen Hu <hu1.chen@intel.com>
Fixes: 4e26b134bd17 ("serial: 8250_dw: clock rate handling for all ACPI platforms")
Cc: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Cc: stable <stable@vger.kernel.org>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Add suspend and resume handlers for uartlite
Signed-off-by: Shubhrajyoti Datta <shubhrajyoti.datta@xilinx.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Add support of Common Clock Framework for Uartlite driver.
Signed-off-by: Shubhrajyoti Datta <shubhrajyoti.datta@xilinx.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Add struct uartlite_data, to store the private data of the Uartlite
driver.
Signed-off-by: Tanvi Desai <tanvi.desai@xilinx.com>
Signed-off-by: Shubhrajyoti Datta <shubhrajyoti.datta@xilinx.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Some SCIF versions mux error and break interrupts together and then provide
a separate interrupt ID for just TEI/DRI.
Allow all 6 types of interrupts to be specified via platform data (or DT)
and for any signals that are muxed together (have the same interrupt
number) simply register one handler.
Signed-off-by: Chris Brandt <chris.brandt@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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There is no more need for SCIx_RZ_SCIFA_REGTYPE now that
SCIx_SH4_SCIF_REGTYPE can provide the same register/address definitions.
Also, R7S9210 no longer needs a special compatible since the standard
"renesas,scif" will work just fine.
Signed-off-by: Chris Brandt <chris.brandt@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Some devices with SCIx_SH4_SCIF_REGTYPE have no space between registers.
Use the register area size to determine the spacing between register.
Signed-off-by: Chris Brandt <chris.brandt@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The code is different enough to justify a split.
Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
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We would like to allow other utlities to init msix and rx.
Put their declarations in a place accessible to other utilities.
Signed-off-by: Golan Ben Ami <golan.ben.ami@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
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If CONFIG_IPV6 is not enabled in the kernel, tcp.h is not included
implicitly from other header files, causing compilation errors. To
solve that, explicitly include it in tx-gen2.c.
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
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There was a bunch of code to support gscan which has never been used.
Remove it all to cleanup and get rid of a lot of dead code.
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
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Balanced power save mode isn't supported in the fw for 22560 devices
yet. Configure the power save mode to CAM until it gets implemented.
Signed-off-by: Golan Ben Ami <golan.ben.ami@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
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This reverts commit f2e66c8df0d0f10c70ed7f5e14a939714e9ee6a9.
The firmware never implemented this, and they do not plan to.
Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
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The periphery can't be accessed before we set the
INIT_DONE bit which initializes the device.
A previous patch added a reconfiguration of the MSI-X
tables upon resume, but at that point in the flow,
INIT_DONE wasn't set. Since the reconfiguration of the
MSI-X tables require periphery access, it failed.
The difference between WoWLAN and without WoWLAN is that
in WoWLAN, iwl_trans_pcie_d3_suspend clears the INIT_DONE
without clearing the STATUS_DEVICE_ENABLED bit in the
software status. Because of that, the resume code thinks
that the device is enabled, but the INIT_DONE bit has been
cleared.
To fix this, don't reconfigure the MSI-X tables in case
WoWLAN is enabled. It will be done in
iwl_trans_pcie_d3_resume anyway.
Fixes: 52848a79b9d2 ("iwlwifi: pcie: reconfigure MSI-X HW on resume")
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
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Currently multi-queue is disabled for 22000 devices.
This was since driver isn't supposed to write to prph
registers anymore, and FW needs to configure the RFH.
Now that FW added support for the API - use it and remove
the 22000 multi RX queue disablement.
Bump min API version to avoid compatibility issues.
Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
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Currently the firmware does not stop recording debugging data when
entering D3 and this causes trouble (e.g. sporadic wake ups).
Fix that by stopping dbg recording when suspending.
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
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Reading and dumping memory areas takes time, and sometimes
dumping all of the areas isn't necessary.
Allow choosing the memory areas which should be dumped.
Signed-off-by: Shahar S Matityahu <shahar.s.matityahu@intel.com>
Signed-off-by: Golan Ben Ami <golan.ben.ami@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
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Op mode will need this data in order to feed FW with it.
Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
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This makes code less indented and more readable.
Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
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This allows less "dummy" declarations and casting.
Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
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22560 devices use a new rx_mpdu_desc api.
Update the code to use the new api.
Signed-off-by: Golan Ben Ami <golan.ben.ami@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
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The rfh for 22560 devices has changed so it supports now
the same arch of using used and free lists, but different
structures to support the last.
Use the new structures, hw dependent, to manage the lists.
bd, the free list, uses the iwl_rx_transfer_desc,
in which the vid is stored in the structs' rbid
field, and the page address in the addr field.
used_bd, the used list, uses the iwl_rx_completion_desc
struct, in which the vid is stored in the structs' rbid
field.
rb_stts, the hw "write" pointer of rx is stored in a
__le16 array, in which each entry represents the write
pointer per queue.
Signed-off-by: Golan Ben Ami <golan.ben.ami@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
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Add some missing PCI IDs for 22000 and 22560 devices.
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
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A number of block comments have been changed to comply with the coding
standard. These are coding style changes which should have no impact
on runtime code execution.
Signed-off-by: John Whitmore <johnfwhitmore@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The macro IsACValid is renamed to resolve the checkpatch issue with
CamelCase naming. In addition the parameter has parenthesis added to
clear the checkpatch issue with precedence issues.
These changes are coding style changes and as such should have not
impact on runtime code execution.
Signed-off-by: John Whitmore <johnfwhitmore@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The macro UP2AC is commented out of the header file so the macro and its
associated comment are removed.
This is a coding style change which should have no impact on runtime
code execution.
Signed-off-by: John Whitmore <johnfwhitmore@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Rename the structure octet_string's member variables Octet to octet and
Length to length. This change clears the checkpatch issue with CamelCase
naming of variables.
This is purely a coding style change which should have no impact on
runtime code execution.
Signed-off-by: John Whitmore <johnfwhitmore@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Rename the structure OCTET_STRING to octet_string. This is to comply
with the coding style of using lowercase for types. In addition the
typedef directive is removed to clear the checkpatch issue with
defining new types.
These are coding style changes which should have no impact on runtime
code execution.
Signed-off-by: John Whitmore <johnfwhitmore@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Move the union QOS_TCLAS from the header file rtl819x_Qos.h to header
file rtl819x_TS.h, where the structure is actually used, as the member
of another structure.
This is a coding style change, which should have no impact on runtime
code execution.
Signed-off-by: John Whitmore <johnfwhitmore@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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A number of structures have been commented out of code. Obviously they
are not used and as a result have been removed from the code.
This is a coding style change which should have no impact on runtime
code execution.
Signed-off-by: John Whitmore <johnfwhitmore@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The member variables of the tspec_body have been renamed to clear the
checkpatch issue with CamelCase naming. As these member variables are
never used in the code the changes are combined into this single
patch.
These changes are coding style changes which should have no impact on
runtime code execution.
Signed-off-by: John Whitmore <johnfwhitmore@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Rename TSInfo, the memeber variable of struct tspec_body to ts_info.
This change clears the checkpatch issue with CamelCase naming.
This is a coding style change which should not impact runtime code
execution.
Signed-off-by: John Whitmore <johnfwhitmore@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The union TSPEC_BODY is never used as a union. The union comprises an
array of bytes and a bitfield structure, both of which are 55 bytes in
length, but the byte array is never used. As a result the union has
been truncated to the bitfield struct, which is actually used.
Additionally the typedef has been removed from the structure to clear
the checkpatch issue with defining new types. Additionally the name has
been changed to lowercase to comply with coding style.
These changes are all coding style changes which should have no impact
on runtime code execution.
Signed-off-by: John Whitmore <johnfwhitmore@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The member variables of struct qos_tsinfo all cause checkpatch issues
with CamelCase naming. As the variables are used in so few places the
changes are combined into this single patch.
Additionally the member variable usReserved is never used in code so
has been removed.
These are all coding style changes which should have no impact on
runtime code execution.
Signed-off-by: John Whitmore <johnfwhitmore@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The union is never used as a union but only as a bitfield struct.
One side of the union (u8 charData[3];) Only seems to be present to
ensure that the structures size is 3 bytes in length. That length, of
the structure is dictated by the largest element of the union, so the
byte array only dictates size if it's the largest element of the union.
The byte array and union add nothing.
The union has therefore been removed and the structure and access to
the structure simplified.
Additionally since one of the bitfield variables (ucAccessPolicy)
spans a byte boundary the base type of the bitfield has been changed
from u8 to u16. Compilers have probably moved on from having an issue
with this, call it OCD.
The changes are coding style in nature and should not impact runtime
code execution.
Signed-off-by: John Whitmore <johnfwhitmore@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The union aci_aifsn is not used as a union, but only as a struct.
The union seems to have been used to ensure that the size of the
structure was only a single byte. That size is set by the bitfield
structure, adding a union with an unused byte adds nothing.
The union has been removed. This is a coding style change and
should not impact runtime code execution.
Signed-off-by: John Whitmore <johnfwhitmore@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The only useful piece of information in the header comment of this
static function was the name of the function and parameters. That
is not useful information, given that they are in the C Source of
the function declaration, a few lines below the comment. The block
comment has been removed.
This is a coding style change, there should be no impact on runtime
code execution.
Signed-off-by: John Whitmore <johnfwhitmore@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Rename source and header file to avoid CamelCase.
odm_RTL8188E.c -> odm_rtl8188e.c
odm_RTL8188E.h -> odm_rtl8188e.h
Signed-off-by: Michael Straube <straube.linux@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The function rtw_remove_bcn_ie() is never used, so remove it.
Discovered by cppcheck.
Signed-off-by: Michael Straube <straube.linux@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The function rtw_add_bcn_ie() is never used, so remove it.
Discovered by cppcheck.
Signed-off-by: Michael Straube <straube.linux@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Remove unnecessary parentheses to improve readability.
Signed-off-by: Michael Straube <straube.linux@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Use x instead of x != NULL.
Use !x instead of x == NULL.
Signed-off-by: Michael Straube <straube.linux@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Fix indentation to clear checkpatch warnings.
WARNING: suspect code indent for conditional statements
Signed-off-by: Michael Straube <straube.linux@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Use is_broadcast_ether_addr instead of checking each byte of the
address array for 0xff. Shortens the code and improves readability.
As required by is_broadcast_ether_addr, the address array sta_addr
is properly aligned in all uses. Thanks to Joe Perches.
Signed-off-by: Michael Straube <straube.linux@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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