Parentheses around the right side of an assignment statement are
unnecessary and hence removed. Coccinelle was used to produce the
patch:
@rule1@
identifier x,y;
constant c;
@@
(
x =
-(
y << c
-)
;
|
x =
-(
y >> c
-)
;
|
x =
-(
y + c
-)
;
|
x =
-(
y - c
-)
;
)
Signed-off-by: Tina Johnson <tinajohnson.1234@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Parentheses around the right side of an assignment statement are
unnecessary and hence removed. Coccinelle was used to produce the
patch:
@rule1@
identifier x,y;
constant c;
@@
(
x =
-(
y << c
-)
;
|
x =
-(
y >> c
-)
;
|
x =
-(
y + c
-)
;
|
x =
-(
y - c
-)
;
)
Signed-off-by: Tina Johnson <tinajohnson.1234@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The following patch fixes the checkpatch.pl warning:
WARNING: Use #include <linux/string.h> instead of #include <asm/string.h>
Signed-off-by: Dilek Uzulmez <dilekuzulmez@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The following patch fixes the checkpatch.pl warning:
WARNING: Use #include <linux/string.h> instead of #include <asm/string.h>
Signed-off-by: Dilek Uzulmez <dilekuzulmez@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The following patch fixes the checkpatch.pl warning:
WARNING: Use #include <linux/string.h> instead of #include <asm/string.h>
Signed-off-by: Dilek Uzulmez <dilekuzulmez@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch replaces min with min_t and eliminates the
following warnings found by checkpatch.pl:
WARNING: min() should probably be min_t
Signed-off-by: Darshana Padmadas <darshanapadmadas@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch replaces min with min_t and eliminates
the following warning found by checkpatch.pl:
WARNING: min() should probably be min_t(uint, n, 12)
Signed-off-by: Darshana Padmadas <darshanapadmadas@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch removes variable that was used to store only the return value of a function call.
The issue was detected and resolved using the following coccinelle script:
@@
expression ret;
identifier f;
@@
-ret =
+return
f(...);
-return ret;
Signed-off-by: Haneen Mohammed <hamohammed.sa@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch removes variable that was used to store only the return value of a function call.
The issue was detected and resolved using the following coccinelle script:
@@
expression ret;
identifier f;
@@
-ret =
+return
f(...);
-return ret;
Signed-off-by: Haneen Mohammed <hamohammed.sa@gmail.com>
Reviewed-by: Daniel Baluta <daniel.baluta@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch removes unneeded parentheses from a if statement
for better readability.
This issue is identified by checkpatch.pl
Signed-off-by: Somya Anand <somyaanand214@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
In the adis16220_read16bit() function we earlier used a s16 value 'val'
which is used by the adis_read_reg_16 function to read data and takes a
u16 value as a parameter.
So, this patch changes the data type of 'val' from s16 to u16. It is safe
to remove the extra sign extension, since the user of the function uses it
to read a 10 unsigned value which will lead to the same result in both cases.
Further this patch removes the unnecessary typecast for the simplification of
code. In addition to this, initialization of 'val' to 0 is also dropped. This is
due to the fact that not initializing helps the compiler provide useful warnings
if the code gets changed to return an otherwise uninitialized result.
Signed-off-by: Somya Anand <somyaanand214@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
POLL_OUT isn't what callers of ->poll() are expecting to see; it's
actually __SI_POLL | 2 and it's a siginfo code, not a poll bitmap
bit...
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Cc: stable@vger.kernel.org
Cc: Bruce Fields <bfields@fieldses.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Here's a round of USB fixes for 4.0-rc3.
Nothing major, the usual gadget, xhci and usb-serial fixes and a few new
device ids as well.
All have been in linux-next successfully.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-4.0-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB fixes from Greg KH:
"Here's a round of USB fixes for 4.0-rc3.
Nothing major, the usual gadget, xhci and usb-serial fixes and a few
new device ids as well.
All have been in linux-next successfully"
* tag 'usb-4.0-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (36 commits)
xhci: Workaround for PME stuck issues in Intel xhci
xhci: fix reporting of 0-sized URBs in control endpoint
usb: ftdi_sio: Add jtag quirk support for Cyber Cortex AV boards
USB: ch341: set tty baud speed according to tty struct
USB: serial: cp210x: Adding Seletek device id's
USB: pl2303: disable break on shutdown
USB: mxuport: fix null deref when used as a console
USB: serial: clean up bus probe error handling
USB: serial: fix port attribute-creation race
USB: serial: fix tty-device error handling at probe
USB: serial: fix potential use-after-free after failed probe
USB: console: add dummy __module_get
USB: ftdi_sio: add PIDs for Actisense USB devices
Revert "USB: serial: make bulk_out_size a lower limit"
cdc-acm: Add support for Denso cradle CU-321
usb-storage: support for more than 8 LUNs
uas: Add US_FL_NO_REPORT_OPCODES for JMicron JMS539
USB: usbfs: don't leak kernel data in siginfo
xhci: Clear the host side toggle manually when endpoint is 'soft reset'
xhci: Allocate correct amount of scratchpad buffers
...
Here are some tty and serial driver fixes for 4.0-rc3.
Along with the atime fix that you know about, here are some other serial
driver bugfixes as well. Most notable is a wait_until_sent bugfix that
was traced back to being around since before 2.6.12 that Johan has fixed
up.
All have been in linux-next successfully.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-4.0-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty/serial fixes from Greg KH:
"Here are some tty and serial driver fixes for 4.0-rc3.
Along with the atime fix that you know about, here are some other
serial driver bugfixes as well. Most notable is a wait_until_sent
bugfix that was traced back to being around since before 2.6.12 that
Johan has fixed up.
All have been in linux-next successfully"
* tag 'tty-4.0-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
TTY: fix tty_wait_until_sent maximum timeout
TTY: fix tty_wait_until_sent on 64-bit machines
USB: serial: fix infinite wait_until_sent timeout
TTY: bfin_jtag_comm: remove incorrect wait_until_sent operation
net: irda: fix wait_until_sent poll timeout
serial: uapi: Declare all userspace-visible io types
serial: core: Fix iotype userspace breakage
serial: sprd: Fix missing spin_unlock in sprd_handle_irq()
console: Fix console name size mismatch
tty: fix up atime/mtime mess, take four
serial: 8250_dw: Fix get_mctrl behaviour
serial:8250:8250_pci: delete unneeded quirk entries
serial:8250:8250_pci: fix redundant entry report for WCH_CH352_2S
Change email address for 8250_pci
serial: 8250: Revert "tty: serial: 8250_core: read only RX if there is something in the FIFO"
Revert "tty/serial: of_serial: add DT alias ID handling"
Here are some IIO and staging driver fixes for 4.0-rc3.
Details are in the shortlog, nothing major, mostly IIO fixes for
reported issues.
All have been in linux-next successfully.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-4.0-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging driver fixes from Greg KH:
"Here are some IIO and staging driver fixes for 4.0-rc3.
Details are in the shortlog, nothing major, mostly IIO fixes for
reported issues.
All have been in linux-next successfully"
* tag 'staging-4.0-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (23 commits)
staging: comedi: adv_pci1710: fix AI INSN_READ for non-zero channel
staging: comedi: vmk80xx: remove "firmware version" kernel messages
staging: comedi: comedi_isadma: fix "stalled" detect in comedi_isadma_disable_on_sample()
iio: ak8975: fix AK09911 dependencies
iio: common: ssp_sensors: Protect PM-only functions to kill warning
IIO: si7020: Allocate correct amount of memory in devm_iio_device_alloc
Revert "iio:humidity:si7020: fix pointer to i2c client"
iio: light: gp2ap020a00f: Select REGMAP_I2C
iio: light: jsa1212: Select REGMAP_I2C
iio: ad5686: fix optional reference voltage declaration
iio:adc:mcp3422 Fix incorrect scales table
iio: mxs-lradc: fix iio channel map regression
iio: imu: adis16400: Fix sign extension
staging: iio: ad2s1200: Fix sign extension
iio: mxs-lradc: only update the buffer when its conversions have finished
iio: mxs-lradc: make ADC reads not unschedule touchscreen conversions
iio: mxs-lradc: make ADC reads not disable touchscreen interrupts
iio: mxs-lradc: separate touchscreen and buffer virtual channels
iio: imu: inv_mpu6050: Prevent dereferencing NULL
iio: iadc: wait_for_completion_timeout time in jiffies
...
Here are 2 char/misc fixes for 4.0-rc3.
One is a reported binder driver fix needed due to a change in the mm
core that happened in 4.0-rc1. Another is a mei driver fix that
resolves a reported issue in that driver.
Both have been in linux-next for a while.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-4.0-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver fixes from Greg KH:
"Here are two char/misc fixes for 4.0-rc3.
One is a reported binder driver fix needed due to a change in the mm
core that happened in 4.0-rc1. Another is a mei driver fix that
resolves a reported issue in that driver.
Both have been in linux-next for a while"
* tag 'char-misc-4.0-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
mei: make device disabled on stop unconditionally
android: binder: fix binder mmap failures
This file tries to set the rational basis for our code reviews, gives
some advice on how to conduct them, and provides an excalation channel
for any kernel developers if they so desire it.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'cc-4.0-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull "code of conflict" from Greg KH:
"This file tries to set the rational basis for our code reviews, gives
some advice on how to conduct them, and provides an excalation channel
for any kernel developers if they so desire it"
[ Let's see how this works ]
* tag 'cc-4.0-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
Code of Conflict
Pull i2c fixes from Wolfram Sang:
"A set of updates and bugfixes for the new designware-baytrail driver.
And a documentation bugfix"
* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: imx: add required clocks property to binding
i2c: designware-baytrail: baytrail_i2c_acquire() might sleep
i2c: designware-baytrail: cross-check lock functions
i2c: designware-baytrail: fix sparse warnings
i2c: designware-baytrail: fix typo in error path
i2c: designware-baytrail: describe magic numbers
Currently tty_wait_until_sent may take up to twice as long as the
requested timeout while waiting for driver and hardware buffers to
drain.
Fix this by taking the remaining number of jiffies after waiting for
driver buffers to drain into account so that the timeout actually
becomes a maximum timeout as it is documented to be.
Note that this specifically implies tighter timings when closing a port
as a consequence of actually honouring the port closing-wait setting
for drivers relying on tty_wait_until_sent_from_close (e.g. via
tty_port_close_start).
Signed-off-by: Johan Hovold <johan@kernel.org>
Reviewed-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Fix overflow bug in tty_wait_until_sent on 64-bit machines, where an
infinite timeout (0) would be passed to the underlying tty-driver's
wait_until_sent-operation as a negative timeout (-1), causing it to
return immediately.
This manifests itself for example as tcdrain() returning immediately,
drivers not honouring the drain flags when setting terminal attributes,
or even dropped data on close as a requested infinite closing-wait
timeout would be ignored.
The first symptom was reported by Asier LLANO who noted that tcdrain()
returned prematurely when using the ftdi_sio usb-serial driver.
Fix this by passing 0 rather than MAX_SCHEDULE_TIMEOUT (LONG_MAX) to the
underlying tty driver.
Note that the serial-core wait_until_sent-implementation is not affected
by this bug due to a lucky chance (comparison to an unsigned maximum
timeout), and neither is the cyclades one that had an explicit check for
negative timeouts, but all other tty drivers appear to be affected.
Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Cc: stable <stable@vger.kernel.org> # v2.6.12
Reported-by: ZIV-Asier Llano Palacios <asier.llano@cgglobal.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Reviewed-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Make sure to handle an infinite timeout (0).
Note that wait_until_sent is currently never called with a 0-timeout
argument due to a bug in tty_wait_until_sent.
Fixes: dcf0105039 ("USB: serial: add generic wait_until_sent
implementation")
Cc: stable <stable@vger.kernel.org> # v3.10
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Remove incorrect and redundant wait_until_sent operation, which waits
for the driver buffer rather than any hardware buffers to drain,
something which is already taken care of by the tty layer (and
chars_in_buffer).
Signed-off-by: Johan Hovold <johan@kernel.org>
Reviewed-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
In case an infinite timeout (0) is requested, the irda wait_until_sent
implementation would use a zero poll timeout rather than the default
200ms.
Note that wait_until_sent is currently never called with a 0-timeout
argument due to a bug in tty_wait_until_sent.
Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Cc: stable <stable@vger.kernel.org> # v2.6.12
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
ioctl(TIOCGSERIAL|TIOCSSERIAL) report and can change the port->iotype.
UART drivers use the UPIO_* definitions, but the uapi header defines
parallel values and userspace uses these parallel values for ioctls;
thus the userspace values are definitive.
Define UPIO_* iotypes in terms of the uapi defines, SERIAL_IO_*;
extend the uapi defines to include all values in use by the serial
core.
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 3ffb1a8193 ("serial: core: Add big-endian iotype")
re-numbered userspace-dependent values; ioctl(TIOCSSERIAL) can
assign the port iotype (which is expected to match the selected
i/o accessors), so iotype values must not be changed.
Cc: Kevin Cernekee <cernekee@gmail.com>
Cc: <stable@vger.kernel.org> # 3.19+
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Reviewed-by: Kevin Cernekee <cernekee@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Fix return from sprd_handle_irq() with spin_lock held.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Reviewed-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 6ae9200f2c ("enlarge console.name") increased the storage
for the console name to 16 bytes, but not the corresponding
struct console_cmdline::name storage. Console names longer than
8 bytes cause read beyond end-of-string and failure to match
console; I'm not sure if there are other unexpected consequences.
Cc: <stable@vger.kernel.org> # 2.6.22+
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This problem was taken care of three times already in
* b0de59b573 (TTY: do not update
atime/mtime on read/write),
* 37b7f3c765 (TTY: fix atime/mtime
regression), and
* b0b885657b (tty: fix up atime/mtime
mess, take three)
But it still misses one point. As John Paul correctly points out, we
do not care about setting date. If somebody ever changes wall
time backwards (by mistake for example), tty timestamps are never
updated until the original wall time passes.
So check the absolute difference of times and if it large than "8
seconds or so", always update the time. That means we will update
immediatelly when changing time. Ergo, CAP_SYS_TIME can foul the
check, but it was always that way.
Thanks John for serving me this so nicely debugged.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Reported-by: John Paul Perry <john_paul.perry@alcatel-lucent.com>
Cc: <stable@vger.kernel.org> # all, as b0b885657 was backported
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Fixed behaviour of get_mctrl() serial driver function as documented in:
https://www.kernel.org/doc/Documentation/serial/driver
Added device-tree properties 'dcd-override', 'dsr-override',
'cts-override', and 'ri-override' specific to the Synopsis 8250
DesignWare UART driver. Allows one to force Data Carrier Detect,
Clear To Send, and Data Set Ready signals to permanently be reported as
active. The Ring indicator can be forced to be reported as inactive.
It is possible that if modem control signalling is enabled on a port
that doesn't have these pins (e.g. - a simple two wire Tx/Rx port), the
driver can hang indefinitely waiting for the state to change. The new
DT properties allow the driver to ignore the state of these pins on
serial ports that don't support them, as recommended in the kernel
documentation.
Reviewed-by: JD (Jiandong) Zheng <jdzheng@broadcom.com>
Signed-off-by: Jonathan Richardson <jonathar@broadcom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
These quirk entries have the same effect as default
quirk entry, so we can just delete them.
Signed-off-by: Wang YanQing <udknight@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Commit 8b5c913f7e
("serial: 8250_pci: Add WCH CH352 quirk to avoid Xscale detection")
trigger one redundant entry report message.
This patch fix it.
Reported-by: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Wang YanQing <udknight@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
I'm still receiving reports to my email address, so let's point this
at the linux-serial mailing list instead.
Cc: <stable@vger.kernel.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This reverts commit 0aa525d118.
The conditional RX-FIFO read seems to cause spurious interrupts and we
see just:
|serial8250: too much work for irq29
The previous behaviour was "default" for decades and Marvell's 88f6282 SoC
might not be the only that relies on it. Therefore the Omap fix is
reverted for now.
Fixes: 0aa525d118 ("tty: serial: 8250_core: read only RX if there is
something in the FIFO")
Reported-By: Nicolas Schichan <nschichan@freebox.fr>
Debuged-By: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This reverts commit 6d01bb9dc8.
The exact same code was added in commit 3239fd31d4 (serial: of-serial: fetch
line number from DT) a few lined above. Doing this once should be enough.
Cc: Rob Herring <robh@kernel.org>
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The fsl-mc object allocator driver manages "allocatable" fsl-mc
objects such as DPBPs, DPMCPs and DPCONs. It provides services to
other fsl-mc drivers to allocate/deallocate these types of objects.
Signed-off-by: J. German Rivera <German.Rivera@freescale.com>
Signed-off-by: Stuart Yoder <stuart.yoder@freescale.com>
Acked-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
A DPRC (Data Path Resource Container) is an isolation device
that contains a set of DPAA networking devices to be
assigned to an isolation domain (e.g., a virtual machine).
Signed-off-by: J. German Rivera <German.Rivera@freescale.com>
Signed-off-by: Stuart Yoder <stuart.yoder@freescale.com>
Acked-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Platform device driver that sets up the basic bus infrastructure
for the fsl-mc bus type, including support for adding/removing
fsl-mc devices, register/unregister of fsl-mc drivers, and bus
match support to bind devices to drivers.
Signed-off-by: J. German Rivera <German.Rivera@freescale.com>
Signed-off-by: Stuart Yoder <stuart.yoder@freescale.com>
Acked-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
APIs to access the Management Complex (MC) hardware
module of Freescale LS2 SoCs. This patch includes
APIs to check the MC firmware version and to manipulate
DPRC objects in the MC.
Signed-off-by: J. German Rivera <German.Rivera@freescale.com>
Signed-off-by: Stuart Yoder <stuart.yoder@freescale.com>
Acked-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch convert local variables declared as int into booleans.
It also propagates the conversion when these variables were used
as function parameters.
Coccinelle was used to generate this patch.
Signed-off-by: Quentin Lambert <lambert.quentin@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
