dgnc_kcompat.h contains some old legacy defines in case the kernel
doesn't have __user defined but for current kernel versions these
defines don't make sense and are useless so remove them. Move the
TTY_FLIPBUF_SIZE define to digi.h because it's used in the code.
Signed-off-by: Giedrius Statkevičius <giedrius.statkevicius@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Dgnc_types.h unnecesarily defines TRUE as 1 and FALSE as 0 because we
already have a widely used linux/types.h so convert all TRUE to true,
FALSE to false and edit the dgnc_board struct to make sure it uses
"bool".
Signed-off-by: Giedrius Statkevičius <giedrius.statkevicius@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Dpacompat.h contained a lot of unused #defines and only few things are
used from it so since we've trimmed down digi.h, now we can delete
dpacompat.h and move remaining stuff into digi.h.
Signed-off-by: Giedrius Statkevičius <giedrius.statkevicius@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Remove a lot of unused structs and defines from digi.h. We still have to
be careful with TIOCM_LE and TIOCMSET/TIOCMBIC because termios.h and
ioctls.h respectfully redefine them.
Signed-off-by: Giedrius Statkevičius <giedrius.statkevicius@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
dgnc_ioctl_name() is never used anywhere so remove it
Signed-off-by: Giedrius Statkevičius <giedrius.statkevicius@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
"dgnc_NumBoards" is the number of filled out elements in the
dgnc_Board[] array. "->nasync" and "->maxports" are the same value.
They are the number of channels in the ->channels[] array so these tests
should be ">=" instead of ">" so we avoid reading past the end of the
arrays.
I cleaned up the conditions in dgnc_mgmt_ioctl() a bit. There was a
work around for the off by one bug in the case where there were no
boards which is no longer needed. "channel" is unsigned so it can't be
negative.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The refactoring intrduced in
c84a083b99 ("Staging: dgnc: Use goto for spinlock release before return")
inverts the order in which the lock is released and ld is tested for nullity.
This patch restores the execution flow.
Fixes: c84a083b99 ("Staging: dgnc: Use goto for spinlock release before return")
Signed-off-by: Quentin Lambert <lambert.quentin@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
spin_unlock_irqrestore() is called at several
different places before exiting. This patch uses a goto statement
to factorize these calls.
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>
This patch introduces goto statments for error handling
and in cases where a lock needs to be released.
A simplified version of the semantic patch that finds this problem is as
follows: (http://coccinelle.lip6.fr)
@candidates exists@
identifier f, label;
statement s;
position p1, p2, p3;
@@
f@p1(...) {
...when any
if@p2(...) {
...when any
s
return@p3 ...;
}
...when any
}
@good1 exists@
identifier candidates.f, candidates.label;
statement candidates.s;
position candidates.p1, candidates.p2;
@@
f@p1(...) {
...when any
if(...) {
...when any
s
return ...;
}
...when any
if@p2(...) {...}
...when any
}
@depends on good1@
identifier candidates.f, candidates.label;
position candidates.p1, candidates.p3;
@@
f@p1(...) {
...when any
* return@p3 ...;
}
Signed-off-by: Quentin Lambert <lambert.quentin@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch removes the redundant parentheses inorder to make code
simplified. While doing this, the precedence order of the operation
is taken into consideration to keep the logic of the code intact.
Signed-off-by: Somya Anand <somyaanand214@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This function is called on the previous and the next failure branches.
This patch adds the call on the branch where it seems to be missing.
Signed-off-by: Quentin Lambert <lambert.quentin@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Remove FSF address because it's known in the past that it has changed.
Also, remove the pointless "do not change the coding style" comments
because it's one of the reasons why it's in staging and it's quite
contradictory to what it says in TODO. Also, they contain wrong e-mails
of people which are responsible for these drivers - see TODO or
MAINTAINERS for that. We can preserve the original copyright at the top
of the most files because it shows who originally made them.
Signed-off-by: Giedrius Statkevičius <giedrius.statkevicius@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Dgnc_state array of strings is never used anywhere and it seems pretty
useless anyway since the board state enum names speak for themselves.
Signed-off-by: Giedrius Statkevičius <giedrius.statkevicius@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch uses kcalloc instead of kzalloc function.
A coccinelle script was used to make this change.
Signed-off-by: Navya Sri Nizamkari <navyasri.tech@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
"dgnc_NumBoards" is the number of initialized elements in the
dgnc_Board[] array so the comparison should be ">=" instead of ">" so we
don't read invalid data. We can remove the special handling of the
empty array now that we've fixed this bug.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Some of the lines are over 80 characters in dgnc_driver.c so fix them by
moving the comments closer to the code, tidying the comments to make
them smaller, and remove a redundant space after +.
Signed-off-by: Giedrius Statkevičius <giedrius.statkevicius@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Some of the lines are over 80 characters so fix that by moving the
comments before the struct definition and before #define's.
Signed-off-by: Giedrius Statkevičius <giedrius.statkevicius@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
There are a lot double of blank lines in dgnc_cls.c thus remove them to make
the file follow the CodingStyle. Also, remove one blank line at the
end of dgnc_cls.c.
Signed-off-by: Giedrius Statkevičius <giedrius.statkevicius@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Avoid deprecated usage of EXTRA_CFLAGS by moving definition of DG_PART into dgnc_driver.h
Signed-off-by: Cass May <cass@cassm.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Clean up Makefile by removing unnecessary definition of DG_NAME.
Signed-off-by: Cass May <cass@cassm.net>
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>
The failure code is negative. So check <0 instead of <=0.
Return the failure code instead of -ENXIO.
Signed-off-by: Salah Triki <salah.triki@acm.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch fixes the following checkpatch.pl warning:
braces {} are not necessary for single statement blocks
Signed-off-by: Salah Triki <salah.triki@acm.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch replaces printk() with dev_dbg() in order to avoid the
suggestion of using a more specific function while printing debug
information. Warning found by checkpatch.pl.
Signed-off-by: Cristina Opriceana <cristina.opriceana@gmail.com>
Reviewed-by: Daniel Baluta <daniel.baluta@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch replaces init_timer and the 2 step initialization of function
and data by setup_timer to make the code more concise.
The issue was discovered using the following coccinelle script:
@@
expression ds, e1, e2;
@@
-init_timer (&ds);
+setup_timer (&ds, e1, e2);
...
(
-ds.function = e1;
...
-ds.data = e2;
|
-ds.data = e2;
...
-ds.function = e1;
)
Signed-off-by: Aya Mahfouz <mahfouz.saif.elyazal@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Call __set_current_state() instead of assigning the new state directly.
These interfaces also aid CONFIG_DEBUG_ATOMIC_SLEEP environments,
keeping track of who changed the state.
Signed-off-by: Davidlohr Bueso <dbueso@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch fixes the following checkpatch.pl error:
ERROR: Macros with complex values should be enclosed in parentheses
Outer parentheses were added to macro definitions.
Signed-off-by: Andrew Milkovich <amilkovich@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
dgnc_start() ignores errors in class_create() and device_create()
and it does not deallocate resources if dgnc_tty_preinit() fails.
The patch implements proper error handling.
Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
void pointers do not need to be cast to other pointer types.
The semantic patch used to find this:
@r@
expression x;
void* e;
type T;
identifier f;
@@
(
*((T *)e)
|
((T *)x)[...]
|
((T *)x)->f
|
- (T *)
e
)
Build tested it.
Signed-off-by: Tapasweni Pathak <tapaswenipathak@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch removes the macro PARM_INT after removing all the variables
that depended on it.
Signed-off-by: Aya Mahfouz <mahfouz.saif.elyazal@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch removes all of the debug symbols and the variable dgnc_debug
since they are not used anywhere in the code.
Signed-off-by: Aya Mahfouz <mahfouz.saif.elyazal@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch removes the variable rawreadok since it is only intialized
but not used in any of the driver functions.
Signed-off-by: Aya Mahfouz <mahfouz.saif.elyazal@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch removes the variable trcbuf_size given there is no real
use for it anymore. All of the debug variables in this driver is
basically dead code.
Signed-off-by: Aya Mahfouz <mahfouz.saif.elyazal@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch removes the macros PARM_STR and PARM_ULONG given that they
are not used anywhere in the driver files.
Signed-off-by: Aya Mahfouz <mahfouz.saif.elyazal@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Successive assignments to the same location is meaningless and can be
deleted. The Coccinelle semantic patch was used to find cases.
@@
expression e1,e2,e3;
@@
(
(<+...e1++...+>)=e2;
|
(<+...e1--...+>)=e2;
|
(<+...++e1...+>)=e2;
|
(<+...--e1...+>)=e2;
|
e1=e2;
e1 = <+...e1...+>;
|
*e1=e2;
*e1=e3;
)
Signed-off-by: Jiayi Ye <yejiayily@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The output written by dgnc_sniff_nowait_nolock() is never used
anywhere since commit 35cf904593 ("staging: dgnc: removes proc code")
deleted the code that used to copy it to user space.
dgnc_sniff_nowait_nolock() uses 'timeval' to create header timestamps for
the data dump.
32-bit systems using 'struct timeval' will break in the year 2038,
This patch removes dgnc_sniff_nowait_nolock() and all ch_sniff_* members
of struct channel_t defined in "dgnc_driver.h". It also removes their usage
from the driver files and hence y2038 issue is also resolved.
Signed-off-by: Somya Anand <somyaanand214@gmail.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch fixes the warning of "Please, no space before tab" produced
by checkpatch.pl. The modified file: dgnc_tty.c
Signed-off-by: Dilek Uzulmez <dilekuzulmez@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch removes non-standard macros used by dgnc driver for printing error
or debugging messages. These are replaced by dev_err/dev_dbg (when possible)
or pr_err. There were cases where the message is completely removed since is
not adding any useful information.
Signed-off-by: Roberta Dobrescu <roberta.dobrescu@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The following patch merges two lines of code into one using coccinelle
and removes unused variables. The semantic patch used is as follows:
@@
expression ret;
identifier f;
@@
-ret =
+return
f(...);
-return ret;
Signed-off-by: Heena Sirwani <heenasirwani@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Here's the big tty/serial driver patchset for 3.18-rc1.
Lots of little things in here, some good work from Peter Hurley on the
tty core, and in lots of drivers. There are also lots of other driver
updates in here as well, full details in the changelog below.
All have been in the linux-next tree for a while.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-3.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty/serial driver updates from Greg KH:
"Here's the big tty/serial driver patchset for 3.18-rc1.
Lots of little things in here, some good work from Peter Hurley on the
tty core, and in lots of drivers. There are also lots of other driver
updates in here as well, full details in the changelogs.
All have been in the linux-next tree for a while"
* tag 'tty-3.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (99 commits)
Revert "serial/core: Initialize the console pm state"
tty: serial: 8250: use 32bit variable for rpm_tx_active
tty: serial: msm: Add earlycon support
serial/core: Initialize the console pm state
serial: asc: Conditionally use readl_relaxed (COMPILE_TEST)
serial: of-serial: add PM suspend/resume support
m68k: AMIGA_BUILTIN_SERIAL should depend on TTY
asm/uapi: Add definition of TIOC[SG]RS485
tty/metag_da: Add console_poll module parameter
serial: 8250_pci: remove rts_n override from Baytrail quirk
serial: cadence: Add generic earlycon support
serial: imx: change the wait even to interruptiable
serial: imx: terminate the RX DMA when the UART is suspending
serial: imx: fix throttle/unthrottle callbacks for hardware assisted flow control
serial: 8250: Add Quark X1000 to 8250_pci.c
tty: omap-serial: pull out calculation from baud_is_mode16
tty: omap-serial: fix division by zero
xen_hvc: no reason to write the type key on xenstore
tty: serial: 8250_core: remove UART_IER_RDI in serial8250_stop_rx()
tty: serial: 8250_core: use the ->line argument as a hint in serial8250_find_match_or_unused()
...
This patch fixes "do not add new typedefs"
checkpatch.pl warning in dgnc_types.h
Signed-off-by: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Ioana Ciornei
Giedrius Statkevičius
Dan Carpenter
Quentin Lambert
Somya Anand
Navya Sri Nizamkari
Cass May
Darshana Padmadas
Salah Triki
Cristina Opriceana
Gamze POLAT
Aya Mahfouz
Vatika Harlalka
Davidlohr Bueso
Andrew Milkovich
Krzysztof Adamski
Alexey Khoroshilov
Tapasweni Pathak
Jiayi Ye
Dilek Uzulmez
Roberta Dobrescu
Heena Sirwani
Linus Torvalds
Ebru Akagunduz