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This patch fixes the issue where TTY-migrated synths would take a while
to shut up after hitting numpad enter key. When calling synth_flush,
even though XOFF character is sent as high priority, data buffered in
TTY layer is still sent to the synth. This patch flushes that buffered
data when synth_flush is called.
It also tries to ensure that hardware flow control is enabled, by
setting CRTSCTS using tty's termios.
Reported-by: John Covici <covici@ccs.covici.com>
Signed-off-by: Okash Khawaja <okash.khawaja@gmail.com>
Reviewed-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch simply uses the changes introduced in previous patches and migrates
apollo, ltlk, audptr, decext, spkout and dectlk. Migrations are straightforward
function pointer updates.
Signed-off by: Okash Khawaja <okash.khawaja@gmail.com>
Reviewed-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch adds further TTY-based functionality, specifically implementation
of send_xchar and tiocmset methods, and input. send_xchar and tiocmset
methods simply delegate to corresponding TTY operations.
For input, it implements the receive_buf2 callback in tty_ldisc_ops of
speakup's ldisc. If a synth defines read_buff_add method then receive_buf2
simply delegates to that and returns.
For spk_ttyio_in, the data is passed from receive_buf2 thread to
spk_ttyio_in thread through spk_ldisc_data structure. It has following
members:
- char buf: represents data received
- struct semaphore sem: used to signal to spk_ttyio_in thread that data
is available to be read without having to busy wait
- bool buf_free: this is used in comination with mb() calls to syncronise
the two threads over buf
receive_buf2 only writes to buf if buf_free is true. The check for buf_free
and writing to buf are separated by mb() to ensure that spk_ttyio_in has read
buf before receive_buf2 writes to it. After writing, it ups the semaphore to
signal to spk_ttyio_in that there is now data to read.
spk_ttyio_in waits for data to read by downing the semaphore. Thus when
signalled by receive_buf2 thread above, it reads from buf and sets buf_free
to true. These two operations are separated by mb() to ensure that
receive_buf2 thread finds buf_free to be true only after buf has been read.
After that spk_ttyio_in calls tty_schedule_flip for subsequent data to come
in through receive_buf2.
Signed-off-by: Okash Khawaja <okash.khawaja@gmail.com>
Reviewed-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This changes the above five synths to TTY-based comms. They were chosen as a
first pass because their serial comms are straightforward, i.e. they don't use
serial input and don't do internal port knocking.
Signed-off-by: Okash Khawaja <okash.khawaja@gmail.com>
Reviewed-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This adds spk_ttyio.c file. It contains a set of functions which implement
those methods in spk_synth struct which relate to sending bytes out using
serial comms. Implementations in this file perform the same function but
using TTY subsystem instead. Currently synths access serial ports, directly
poking standard ISA ports by trying to steal them from serial driver. Some ISA
cards actually need this way of doing it, but most other synthesizers don't,
and can actually work by using the proper TTY subsystem through a new N_SPEAKUP
line discipline. So this adds the methods for drivers to switch to accessing
serial ports through the TTY subsystem, whenever appropriate.
Signed-off-by: Okash Khawaja <okash.khawaja@gmail.com>
Reviewed-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This exports tty_open_by_driver so that it can be called from other
places inside the kernel. The checks for null file pointer are based on
Alan Cox's patch here:
http://www.mail-archive.com/linux-kernel@vger.kernel.org/msg1215095.html.
Description below is quoted from it:
"[RFC] tty_port: allow a port to be opened with a tty that has no file handle
Let us create tty objects entirely in kernel space. Untested proposal to
show why all the ideas around rewriting half the uart stack are not needed.
With this a kernel created non file backed tty object could be used to handle
data, and set terminal modes. Not all ldiscs can cope with this as N_TTY in
particular has to work back to the fs/tty layer.
The tty_port code is however otherwise clean of file handles as far as I can
tell as is the low level tty port write path used by the ldisc, the
configuration low level interfaces and most of the ldiscs.
Currently you don't have any exposure to see tty hangups because those are
built around the file layer. However a) it's a fixed port so you probably
don't care about that b) if you do we can add a callback and c) you almost
certainly don't want the userspace tear down/rebuild behaviour anyway.
This should however be sufficient if we wanted for example to enumerate all
the bluetooth bound fixed ports via ACPI and make them directly available.
It doesn't deal with the case of a user opening a port that's also kernel
opened and that would need some locking out (so it returned EBUSY if bound
to a kernel device of some kind). That needs resolving along with how you
"up" or "down" your new bluetooth device, or enumerate it while providing
the existing tty API to avoid regressions (and to debug)."
The exported funtion is used later in this patch set to gain access to tty_struct.
[changed export symbol level - gkh]
Signed-off-by: Okash Khawaja <okash.khawaja@gmail.com>
Reviewed-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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fix the following sparse warning:
drivers/staging/fbtft/fbtft-io.c:74:29: warning: incorrect type in assignment
(different base types) drivers/staging/fbtft/fbtft-io.c:74:29: expected
unsigned long long [unsigned] [long] [long long] [usertype] <noident>
drivers/staging/fbtft/fbtft-io.c:74:29: got restricted __be64 [usertype]
<noident>
Signed-off-by: Jandy Gou <gouqingsong@goodix.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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-remove duplicate tty allocation code for serial and printer drivers.
-add missing tty c_ispeed and c_ospeed initialization to 9600.
-fix sparse warning: too long initializer-string for array of char.
This patch was only unit tested due to lack of the actual hardware.
Signed-off-by: Haim Daniel <haimdaniel@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Fixes a 'code indent should use tabs where possible' checkpatch code
style error by changing whitespace into tabs.
Signed-off-by: Remco Verhoef <remco@dutchcoders.io>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Use the BIT(n) macro instead of '(1 << n)' in definitions where the bit
semantics clearly applies.
Fixes true positive "Prefer using the BIT macro" checks reported by
checkpatch.
Some of these checks are still triggering on definitions using
'(1 << n)', namely for PIO2_CNTR_SC_DEV1, PIO2_CNTR_RW_LSB and
PIO2_CNTR_MODE1. Leave them be, as the context there is more of a
"multi-bit field value" ((val << n), where for some cases 'val' happens
to be 1) rather than a "single bit" (1 << n), so keeping the value as is
in the code makes it more readable that using a combination of BIT
macros.
Signed-off-by: Ricardo Silva <rjpdasilva@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Fixed spelling warnings produced by scripts/checkpatch.pl
Signed-off-by: Ammly Fredrick <ammlyf@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Replace CamelCase local variables' name with underscores to comply
with the standard kernel coding style.
Changed:
- LinkSpeed
- TransmittedFrameCount
- ReceivedFragmentCount
- FailedCount
- FCSErrorCount
Signed-off-by: Janusz Lisiecki <janusz.lisiecki@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Fixing 'checkpatch.pl' ERROR: code indent should use tabs where possible
Signed-off-by: Pushkar Jambhlekar <pushkar.iit@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Add Arche platform-driver config option and allow the driver to be
compile tested also without the out-of-tree usb3613 driver.
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Remove the remaining timesync bits that were left in the arche platform
driver and which prevented the driver from being compiled.
Fixes: bdfb95c4baab ("staging: greybus: remove timesync protocol support")
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This kinda reports this as if it was an error message.
Now that bssid is reported at associate remove this piece of code
serves no purpose as there is no code for peers so remove it.
Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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User cannot tell which mac address(BSIDD) associated with so add
this to info message.
Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The flag status of bCurBW40MHz is printed as info and is
only useful as debug message.
Replace with netdev_dbg in line with rest of driver.
Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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alg name will be printed a number times during a connection it
is only really useful as a debug message.
Change to netdev_dbg.
Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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RX will receive countless EAPOL frames over the life of the connection.
A number of conditional calls to rtllib_is_eapol_frame are made in this function.
So this call serves no purpose other than to spam logs with false warning that
it is indeed a EAPOL frame, remove it.
Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Fixing recommendation from checkpatch.pl:
"CHECK: Alignment should match open parenthesis"
Signed-off-by: Brett Hitchcock <bretth256@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Using octal permissions instead of symbolic ones is preferred.
Signed-off-by: Aleksey Kurbatov <alkbt@yandex.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Mk16_le() is an inline function returning le16_to_cpu()
which is causing type mismatch warnings. Removed Mk16_le() and
replaced it with le16_to_cpu() with appropriate argument type as
suggested by Greg K-H.
Signed-off-by: Suniel Mahesh <suniel.spartan@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Fixed a brace coding style issue, found via checkpatch.
Signed-off-by: Riccardo Marotti <riccardo.marotti@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch fixes the checkpatch.pl warnings:
WARNING: function definition argument 'struct vnt_private *' should also have an identifier name
+void CARDvSetRSPINF(struct vnt_private *, u8);
Identifiers priv and bb_type, added to CARDvSetRSPINF definition,
are the names used in the function declaration.
Signed-off-by: Sucha Supittayapornpong <sucha.cpe@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Fix several sparse warnings about casts to restricted
little-endian by using in situ conversions.
Signed-off-by: Thibaut SAUTEREAU <thibaut.sautereau@telecom-sudparis.eu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Fix several sparse warnings about casts to restricted
little-endian.
Signed-off-by: Thibaut SAUTEREAU <thibaut.sautereau@telecom-sudparis.eu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Fix checkpatch message:
WARNING: line over 80 characters
Change "bit mask" for "bitmask" to have a line shorter than 80 characters.
Signed-off-by: Michael Mera <dev@michaelmera.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Fix checkpatch.pl "WARNING: Block comments should align the * on each line"
Signed-off-by: Tiago Koji Castro Shibata <tiago.shibata@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This moves functions which take input from external synth, into struct
spk_io_ops. The calling code then uses serial implementation of those methods
through spk_io_ops. That way we can add a parallel TTY-based implementation and
simply replace serial with TTY. That is what the next patch in this series does.
speakup_decext.c has get_last_char function which reads the most recent
available character from the synth. This patch changes that by defining
read_buff_add callback method of spk_syth and letting that update the last_char
global character read from the synth. read_buff_add is called from ISR, so
there is a possibility for last_char to be stale. Therefore it is marked as
volatile. It also pulls a repeated get_index implementation into synth.c, to
be used as a utility function.
Signed-off-by: Okash Khawaja <okash.khawaja@gmail.com>
Reviewed-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Trivial fix to spelling mistakes in a comments and RT_TRACE text.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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"gcc -Wunused" warns about one argument being assigned but not used:
drivers/staging/ccree/ssi_cipher.c: In function 'ssi_blkcipher_complete':
drivers/staging/ccree/ssi_cipher.c:747:41: error: parameter 'info' set but not used [-Werror=unused-but-set-parameter]
We can simply drop that argument here and in its callers.
Fixes: 302ef8ebb4b2 ("staging: ccree: add skcipher support")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
[ gby: rebased patch on latest revision and chopped >80 chars long lines ]
Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Checkpatch emits CHECK: Please don't use multiple blank lines.
Remove multiple blank lines.
Signed-off-by: Alexander Mazyrin <algoritmist1618@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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ssi_fips.c:
fixing checkpatch.pl errors:
ERROR: code indent should use tabs where possible
+ int rc = 0;$
ERROR: code indent should use tabs where possible
+ int rc = 0;$
Signed-off-by: Connor Kelleher <connor.r.kelleher@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This replaces the function parameter sync_mfe with the expression
(ch_type == CAT_CT_VAL_SYNC) what is the same.
Signed-off-by: Andrey Shvetsov <andrey.shvetsov@k2l.de>
Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch enables the flow control feature for the isochronous channels
of the DIM2 macro.
Signed-off-by: Andrey Shvetsov <andrey.shvetsov@k2l.de>
Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This moves the allocation of the net_dev to the aim_probe_channel() and
uses the parameter sizeof_priv of the function alloc_netdev to reserve
the space for the struct net_dev_context.
As a side effect, the nd->dev always points to the existing net_dev.
Signed-off-by: Andrey Shvetsov <andrey.shvetsov@k2l.de>
Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This removes redundant cleanup code that is executed anyway when the
most_deregister_aim() is called.
Signed-off-by: Andrey Shvetsov <andrey.shvetsov@k2l.de>
Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The function get_net_dev_context does not remove elements of the list.
Hence, list traversing does not need to be secured.
This patch replaces list_for_each_entry_safe with the
list_for_each_entry.
Signed-off-by: Andrey Shvetsov <andrey.shvetsov@k2l.de>
Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The modules hdm-usb and hdm-dim2 depend on the module aim-network, because
they use the function most_deliver_netinfo that it exports.
To remove this dependency, this patch replaces the call of the function
most_deliver_netinfo with the call of the function that is the parameter
'on_netinfo' of the function request_netinfo.
Signed-off-by: Andrey Shvetsov <andrey.shvetsov@k2l.de>
Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Since the networking-aim checks the availability of the callback
request_netinfo, this patch removes the empty callback request_netinfo
from the i2c-hdm.
Signed-off-by: Andrey Shvetsov <andrey.shvetsov@k2l.de>
Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Since not all HDMs implement the callback request_netinfo, this patch
adds checking of its availability.
Signed-off-by: Andrey Shvetsov <andrey.shvetsov@k2l.de>
Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This adds the carrier information for the network devices based on the
INIC controllers.
Signed-off-by: Andrey Shvetsov <andrey.shvetsov@k2l.de>
Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This replaces the call of wait_for_completion in case of an invalid MAC
address in the function most_nd_open() with the dormant state of the
network device.
As a side effect, opening the network device cannot fail anymore.
Signed-off-by: Andrey Shvetsov <andrey.shvetsov@k2l.de>
Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The function most_nd_stop is only called by successful return from the
function most_nd_open, so the channels_opened is always true in the
function most_nd_stop.
The functions aim_resume_tx_channel and aim_rx_data are only called
after successful most_start_channel in the function most_nd_open, so the
channels_opened is always true in the functions aim_resume_tx_channel
and aim_rx_data.
Signed-off-by: Andrey Shvetsov <andrey.shvetsov@k2l.de>
Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Constants should be on the right side of comparisons.
Issue found by checkpatch.pl script.
Signed-off-by: Aviv Palivoda <palaviv@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Resolving checkpatch issue:
CHECK: 'Regsiter' may be misspelled - perhaps 'Register'?
CHECK: 'Interrup' may be misspelled - perhaps 'Interrupt'?
All instances resolved.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Resolving checkpatch issue:
WARNING: please, no space before tabs
All instances resolved.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Resolving checkpatch issue:
CHECK: Please don't use multiple blank lines
All instances resolved.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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calling hfa384x_drvr_setconfig16, also fixes relative sparse warning
staging: wlan-ng: prism2mgmt.c: This patches fixes a double endian conversion.
cpu_to_le16() was called twice first in prism2mgmt_scan and again inside
hfa384x_drvr_setconfig16() for the same variable, hence it was swapped
twice. Incidentally, it also fixed the following sparse warning:
drivers/staging/wlan-ng/prism2mgmt.c:173:30: warning: incorrect type in assignment (different base types)
drivers/staging/wlan-ng/prism2mgmt.c:173:30: expected unsigned short [unsigned] [usertype] word
drivers/staging/wlan-ng/prism2mgmt.c:173:30: got restricted __le16 [usertype] <noident>
Unfortunately, only compile tested.
Signed-off-by: Andrea della Porta <sfaragnaus@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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