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2022-09-22drivers: serial: jsm: fix some leaks in probeDan Carpenter1-1/+2
This error path needs to unwind instead of just returning directly. Fixes: 03a8482c17dd ("drivers: serial: jsm: Enable support for Digi Classic adapters") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Link: https://lore.kernel.org/r/YyxFh1+lOeZ9WfKO@kili Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-08-30serial: Make ->set_termios() old ktermios constIlpo Järvinen1-2/+2
There should be no reason to adjust old ktermios which is going to get discarded anyway. Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Link: https://lore.kernel.org/r/20220816115739.10928-7-ilpo.jarvinen@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-05-19serial: jsm: Use B0 instead of 0Ilpo Järvinen2-2/+2
Use B0 to check zero baudrate rather than literal 0. While at it, remove extra parenthesis around CBAUD. Reviewed-by: Johan Hovold <johan@kernel.org> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Link: https://lore.kernel.org/r/20220513082906.11096-6-ilpo.jarvinen@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-05-19tty: remove CMSPAR ifdefsIlpo Järvinen2-12/+0
CMSPAR is defined by all architectures since commit 6bf08cb246b5 ("[PATCH] Add CMSPAR to termbits.h for powerpc and alpha"). Reviewed-by: Johan Hovold <johan@kernel.org> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Link: https://lore.kernel.org/r/20220513082906.11096-2-ilpo.jarvinen@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-03-18tty: serial: jsm: fix two assignments in if conditionsAlexander Vorwerk2-2/+4
Fixes two warnings reported of the form "ERROR: do not use assignment in if condition" reported by checkpatch.pl. Signed-off-by: Alexander Vorwerk <alexander.vorwerk@stud.uni-goettingen.de> Link: https://lore.kernel.org/r/20220315020745.15752-1-alexander.vorwerk@stud.uni-goettingen.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-03-18tty: serial: jsm: remove redundant assignments to variable linestatusColin Ian King1-3/+1
Variable linestatus is being assigned values that are never read, the assignments are redundant and can be removed. Cleans up clang scan warnings: drivers/tty/serial/jsm/jsm_cls.c:369:2: warning: Value stored to 'linestatus' is never read [deadcode.DeadStores] drivers/tty/serial/jsm/jsm_cls.c:400:4: warning: Value stored to 'linestatus' is never read [deadcode.DeadStores] Signed-off-by: Colin Ian King <colin.i.king@gmail.com> Link: https://lore.kernel.org/r/20220307153047.139639-1-colin.i.king@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-02-28tty: serial: make use of UART_LCR_WLEN() + tty_get_char_size()Jiri Slaby2-30/+2
Having a generic UART_LCR_WLEN() macro and the tty_get_char_size() helper, we can remove all those repeated switch-cases in drivers. Cc: Laxman Dewangan <ldewangan@nvidia.com> Cc: Thierry Reding <thierry.reding@gmail.com> Cc: Jonathan Hunter <jonathanh@nvidia.com> Cc: linux-tegra@vger.kernel.org Reviewed-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Jiri Slaby <jslaby@suse.cz> Link: https://lore.kernel.org/r/20220224095558.30929-2-jslaby@suse.cz Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-07-21tty: serial: jsm: hold port lock when reporting modem line changesZheyu Ma2-0/+5
uart_handle_dcd_change() requires a port lock to be held and will emit a warning when lockdep is enabled. Held corresponding lock to fix the following warnings. [ 132.528648] WARNING: CPU: 5 PID: 11600 at drivers/tty/serial/serial_core.c:3046 uart_handle_dcd_change+0xf4/0x120 [ 132.530482] Modules linked in: [ 132.531050] CPU: 5 PID: 11600 Comm: jsm Not tainted 5.14.0-rc1-00003-g7fef2edf7cc7-dirty #31 [ 132.535268] RIP: 0010:uart_handle_dcd_change+0xf4/0x120 [ 132.557100] Call Trace: [ 132.557562] ? __free_pages+0x83/0xb0 [ 132.558213] neo_parse_modem+0x156/0x220 [ 132.558897] neo_param+0x399/0x840 [ 132.559495] jsm_tty_open+0x12f/0x2d0 [ 132.560131] uart_startup.part.18+0x153/0x340 [ 132.560888] ? lock_is_held_type+0xe9/0x140 [ 132.561660] uart_port_activate+0x7f/0xe0 [ 132.562351] ? uart_startup.part.18+0x340/0x340 [ 132.563003] tty_port_open+0x8d/0xf0 [ 132.563523] ? uart_set_options+0x1e0/0x1e0 [ 132.564125] uart_open+0x24/0x40 [ 132.564604] tty_open+0x15c/0x630 Signed-off-by: Zheyu Ma <zheyuma97@gmail.com> Link: https://lore.kernel.org/r/1626242003-3809-1-git-send-email-zheyuma97@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-04-05Merge 5.12-rc6 into tty-nextGreg Kroah-Hartman1-1/+0
We need the serial/tty fixes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-03-17module: remove never implemented MODULE_SUPPORTED_DEVICELeon Romanovsky1-1/+0
MODULE_SUPPORTED_DEVICE was added in pre-git era and never was implemented. We can safely remove it, because the kernel has grown to have many more reliable mechanisms to determine if device is supported or not. Signed-off-by: Leon Romanovsky <leonro@nvidia.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2021-03-10tty: jsm_tty, make char+error handling readableJiri Slaby1-10/+14
The code for char+error handling in jsm_input was complete mess of letters. Introduce 3 new local variables and use them with care. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Link: https://lore.kernel.org/r/20210302062214.29627-21-jslaby@suse.cz Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-12-04tty : serial: jsm: Fixed file by adding spacingClement Smith1-1/+1
Fixed a coding style issue Signed-off-by: Clement Smith <rclemsmith@gmail.com> Link: https://lore.kernel.org/r/20201202060916.34130-1-rclemsmith@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-11-06tty: serial: jsm: jsm_cls: Remove unused variable 'discard'Lee Jones1-3/+1
Fixes the following W=1 kernel build warning(s): drivers/tty/serial/jsm/jsm_cls.c: In function ‘cls_copy_data_from_uart_to_queue’: drivers/tty/serial/jsm/jsm_cls.c:400:7: warning: variable ‘discard’ set but not used [-Wunused-but-set-variable] Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Jiri Slaby <jirislaby@kernel.org> Cc: linux-serial@vger.kernel.org Signed-off-by: Lee Jones <lee.jones@linaro.org> Link: https://lore.kernel.org/r/20201104193549.4026187-12-lee.jones@linaro.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-21tty: serial: Replace HTTP links with HTTPS onesAlexander A. Klimov1-1/+1
Rationale: Reduces attack surface on kernel devs opening the links for MITM as HTTPS traffic is much harder to manipulate. Deterministic algorithm: For each file: If not .svg: For each line: If doesn't contain `\bxmlns\b`: For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`: If neither `\bgnu\.org/license`, nor `\bmozilla\.org/MPL\b`: If both the HTTP and HTTPS versions return 200 OK and serve the same content: Replace HTTP with HTTPS. Signed-off-by: Alexander A. Klimov <grandmaster@al2klimov.de> Link: https://lore.kernel.org/r/20200718123840.19957-1-grandmaster@al2klimov.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-07tty: serial: Use the correct style for SPDX License IdentifierNishad Kamdar1-1/+1
This patch corrects the SPDX License Identifier style in header files related to tty serial drivers. For C header files Documentation/process/license-rules.rst mandates C-like comments (opposed to C source files where C++ style should be used). Changes made by using a script provided by Joe Perches here: https://lkml.org/lkml/2019/2/7/46. Suggested-by: Joe Perches <joe@perches.com> Signed-off-by: Nishad Kamdar <nishadkamdar@gmail.com> Link: https://lore.kernel.org/r/20200301204517.GA10368@nishad Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-04-04tty: add SPDX identifiers to Kconfig and MakefilesGreg Kroah-Hartman1-0/+1
There were a few Kconfig and Makefiles under drivers/tty/ that were missing a SPDX identifier. Fix that up so that automated tools can properly classify all kernel source files. Cc: Jiri Slaby <jslaby@suse.com> Cc: Jiri Kosina <jikos@kernel.org> Cc: Rob Herring <robh@kernel.org> Acked-by: David Sterba <dsterba@suse.com> Reviewed-by: Mukesh Ojha <mojha@codeaurora.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-07-13tty: serial: jsm: remove redundant pointer chColin Ian King1-2/+1
Pointer ch is being assigned but is never used hence it is redundant and can be removed. Cleans up clang warning: warning: variable 'ch' set but not used [-Wunused-but-set-variable] Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-01-09tty: serial: jsm: Add one check against NULL pointer dereferenceGuilherme G. Piccoli1-0/+3
All calls to neo_copy_data_from_uart_to_queue() are safeguarded against NULL dereference of its parameter, except the one that this patch changes. That said, let's play safe and check for NULL in this case too. Signed-off-by: Guilherme G. Piccoli <gpiccoli@linux.vnet.ibm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-01-09tty: serial: jsm: Remove unnecessary NULL checksGuilherme G. Piccoli2-9/+0
After inspection made by Markus using Coccinelle software, he observed that we could possibly be triggering a NULL pointer dereference in 2 functions [0]. After discussion in mailing list, it was observed in fact we have two unnecessary checks for NULL pointer, and they were leading to Coccinelle warn. So, instead of reworking the code as proposed by him, we hereby remove the unnecessary checks, and also some unneeded extra lines in the code. These two unnecessary NULL checks were tracked in the call chain as never NULL, so they can be safely removed. No functional changes are intended. [0] https://lkml.org/lkml/2017/11/29/705 Suggested-by: Markus Elfring <elfring@users.sourceforge.net> Signed-off-by: Guilherme G. Piccoli <gpiccoli@linux.vnet.ibm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-08tty: serial: Remove redundant license textGreg Kroah-Hartman5-50/+0
Now that the SPDX tag is in all tty files, that identifies the license in a specific and legally-defined manner. So the extra GPL text wording can be removed as it is no longer needed at all. This is done on a quest to remove the 700+ different ways that files in the kernel describe the GPL license text. And there's unneeded stuff like the address (sometimes incorrect) for the FSF which is never needed. No copyright headers or other non-license-description text was removed. Cc: Jiri Slaby <jslaby@suse.com> Cc: Eric Anholt <eric@anholt.net> Cc: Stefan Wahren <stefan.wahren@i2se.com> Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: Ray Jui <rjui@broadcom.com> Cc: Scott Branden <sbranden@broadcom.com> Cc: bcm-kernel-feedback-list@broadcom.com Cc: "James E.J. Bottomley" <jejb@parisc-linux.org> Cc: Helge Deller <deller@gmx.de> Cc: Joachim Eastwood <manabian@gmail.com> Cc: Matthias Brugger <matthias.bgg@gmail.com> Cc: Masahiro Yamada <yamada.masahiro@socionext.com> Cc: Tobias Klauser <tklauser@distanz.ch> Cc: Russell King <linux@armlinux.org.uk> Cc: Vineet Gupta <vgupta@synopsys.com> Cc: Richard Genoud <richard.genoud@gmail.com> Cc: Alexander Shiyan <shc_work@mail.ru> Cc: Baruch Siach <baruch@tkos.co.il> Cc: Pat Gefre <pfg@sgi.com> Cc: "Guilherme G. Piccoli" <gpiccoli@linux.vnet.ibm.com> Cc: Jason Wessel <jason.wessel@windriver.com> Cc: Vladimir Zapolskiy <vz@mleia.com> Cc: Sylvain Lemieux <slemieux.tyco@gmail.com> Cc: Carlo Caione <carlo@caione.org> Cc: Kevin Hilman <khilman@baylibre.com> Cc: Liviu Dudau <liviu.dudau@arm.com> Cc: Sudeep Holla <sudeep.holla@arm.com> Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Cc: Andy Gross <andy.gross@linaro.org> Cc: David Brown <david.brown@linaro.org> Cc: "Andreas Färber" <afaerber@suse.de> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Kevin Cernekee <cernekee@gmail.com> Cc: Laxman Dewangan <ldewangan@nvidia.com> Cc: Thierry Reding <thierry.reding@gmail.com> Cc: Jonathan Hunter <jonathanh@nvidia.com> Cc: Barry Song <baohua@kernel.org> Cc: Patrice Chotard <patrice.chotard@st.com> Cc: Maxime Coquelin <mcoquelin.stm32@gmail.com> Cc: Alexandre Torgue <alexandre.torgue@st.com> Cc: Chris Metcalf <cmetcalf@mellanox.com> Cc: Peter Korsgaard <jacmet@sunsite.dk> Cc: Timur Tabi <timur@tabi.org> Cc: Tony Prisk <linux@prisktech.co.nz> Cc: Michal Simek <michal.simek@xilinx.com> Cc: "Sören Brinkmann" <soren.brinkmann@xilinx.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-08tty: add SPDX identifiers to all remaining files in drivers/tty/Greg Kroah-Hartman5-0/+5
It's good to have SPDX identifiers in all files to make it easier to audit the kernel tree for correct licenses. Update the drivers/tty files files with the correct SPDX license identifier based on the license text in the file itself. The SPDX identifier is a legally binding shorthand, which can be used instead of the full boiler plate text. This work is based on a script and data from Thomas Gleixner, Philippe Ombredanne, and Kate Stewart. Cc: Jiri Slaby <jslaby@suse.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Chris Metcalf <cmetcalf@mellanox.com> Cc: Jiri Kosina <jikos@kernel.org> Cc: David Sterba <dsterba@suse.com> Cc: James Hogan <jhogan@kernel.org> Cc: Rob Herring <robh@kernel.org> Cc: Eric Anholt <eric@anholt.net> Cc: Stefan Wahren <stefan.wahren@i2se.com> Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: Ray Jui <rjui@broadcom.com> Cc: Scott Branden <sbranden@broadcom.com> Cc: bcm-kernel-feedback-list@broadcom.com Cc: "James E.J. Bottomley" <jejb@parisc-linux.org> Cc: Helge Deller <deller@gmx.de> Cc: Joachim Eastwood <manabian@gmail.com> Cc: Matthias Brugger <matthias.bgg@gmail.com> Cc: Masahiro Yamada <yamada.masahiro@socionext.com> Cc: Tobias Klauser <tklauser@distanz.ch> Cc: Russell King <linux@armlinux.org.uk> Cc: Vineet Gupta <vgupta@synopsys.com> Cc: Richard Genoud <richard.genoud@gmail.com> Cc: Alexander Shiyan <shc_work@mail.ru> Cc: Baruch Siach <baruch@tkos.co.il> Cc: "Maciej W. Rozycki" <macro@linux-mips.org> Cc: "Uwe Kleine-König" <kernel@pengutronix.de> Cc: Pat Gefre <pfg@sgi.com> Cc: "Guilherme G. Piccoli" <gpiccoli@linux.vnet.ibm.com> Cc: Jason Wessel <jason.wessel@windriver.com> Cc: Vladimir Zapolskiy <vz@mleia.com> Cc: Sylvain Lemieux <slemieux.tyco@gmail.com> Cc: Carlo Caione <carlo@caione.org> Cc: Kevin Hilman <khilman@baylibre.com> Cc: Liviu Dudau <liviu.dudau@arm.com> Cc: Sudeep Holla <sudeep.holla@arm.com> Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Cc: Andy Gross <andy.gross@linaro.org> Cc: David Brown <david.brown@linaro.org> Cc: "Andreas Färber" <afaerber@suse.de> Cc: Kevin Cernekee <cernekee@gmail.com> Cc: Laxman Dewangan <ldewangan@nvidia.com> Cc: Thierry Reding <thierry.reding@gmail.com> Cc: Jonathan Hunter <jonathanh@nvidia.com> Cc: Barry Song <baohua@kernel.org> Cc: Patrice Chotard <patrice.chotard@st.com> Cc: Maxime Coquelin <mcoquelin.stm32@gmail.com> Cc: Alexandre Torgue <alexandre.torgue@st.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Peter Korsgaard <jacmet@sunsite.dk> Cc: Timur Tabi <timur@tabi.org> Cc: Tony Prisk <linux@prisktech.co.nz> Cc: Michal Simek <michal.simek@xilinx.com> Cc: "Sören Brinkmann" <soren.brinkmann@xilinx.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Kate Stewart <kstewart@linuxfoundation.org> Cc: Philippe Ombredanne <pombredanne@nexb.com> Cc: Jiri Slaby <jslaby@suse.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-08tty: serial: jsm: remove redundant pointer tsColin Ian King1-2/+0
Pointer ts is assigned a value that is never read, ts is therefore redundant and can be removed. Cleans up clang warning: drivers/tty/serial/jsm/jsm_tty.c:285:2: warning: Value stored to 'ts' is never read Signed-off-by: Colin Ian King <colin.king@canonical.com> Acked-by: Guilherme G. Piccoli <gpiccoli@linux.vnet.ibm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-08tty: serial: jsm: add space before the open parenthesis '('Gimcuan Hui1-2/+2
This patch fixes the checkpatch.pl complains: space required before the open parenthesis '('. Signed-off-by: Gimcuan Hui <gimcuan@gmail.com> Acked-by: Guilherme G. Piccoli <gpiccoli@linux.vnet.ibm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-08tty: serial: jsm: fix coding styleGimcuan Hui1-2/+1
This patch fixes the checkpatch.pl complain: ERROR: else should follow close brace '}'. Signed-off-by: Gimcuan Hui <gimcuan@gmail.com> Acked-by: Guilherme G. Piccoli <gpiccoli@linux.vnet.ibm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-08tty: serial: jsm: delete space between function name and '('Gimcuan Hui1-1/+1
This patch fixes checkpatch.pl warning: space prohibited between function name and open parenthesis '('. Signed-off-by: Gimcuan Hui <gimcuan@gmail.com> Acked-by: Guilherme G. Piccoli <gpiccoli@linux.vnet.ibm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-08tty: serial: jsm: add blank line after declarationsGimcuan Hui1-0/+1
This patch fixes checkpatch.pl warning: Missing a blank line after declarations. Signed-off-by: Gimcuan Hui <gimcuan@gmail.com> Acked-by: Guilherme G. Piccoli <gpiccoli@linux.vnet.ibm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-08tty: serial: jsm: change the type of local variableGimcuan Hui1-1/+1
The return type of jsm_get_mstat was int, and the local var result was for the return should be int, make the change. This patch fixes the checkpatch.pl warning: Prefer 'unsigned int' to bare use of 'unsigned'. Signed-off-by: Gimcuan Hui <gimcuan@gmail.com> Acked-by: Guilherme G. Piccoli <gpiccoli@linux.vnet.ibm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-10-03tty: serial: jsm: Add space before the open braceGimcuan Hui1-1/+1
This patch fixes the checkpatch.pl error complain: ERROR: space required before the open brace '{' Signed-off-by: Gimcuan Hui <gimcuan@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-07-30tty: serial: jsm: constify pci_device_id.Arvind Yadav1-1/+1
pci_device_id are not supposed to change at runtime. All functions working with pci_device_id provided by <linux/pci.h> work with const pci_device_id. So mark the non-const structs as const. File size before: text data bss dec hex filename 2442 1088 8 3538 dd2 tty/serial/jsm/jsm_driver.o File size After adding 'const': text data bss dec hex filename 3082 448 8 3538 dd2 tty/serial/jsm/jsm_driver.o Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-09-02tty: serial: jsm_tty: constify uart_ops structuresJulia Lawall1-1/+1
Check for uart_ops structures that are only stored in the ops field of a uart_port structure. This field is declared const, so uart_ops structures that have this property can be declared as const also. The semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/) // <smpl> @r disable optional_qualifier@ identifier i; position p; @@ static struct uart_ops i@p = { ... }; @ok@ identifier r.i; struct uart_port e; position p; @@ e.ops = &i@p; @bad@ position p != {r.p,ok.p}; identifier r.i; struct uart_ops e; @@ e@i@p @depends on !bad disable optional_qualifier@ identifier r.i; @@ static +const struct uart_ops i = { ... }; // </smpl> Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Acked-by: Gabriel Krisman Bertazi <krisman@linux.vnet.ibm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-07tty: serial: jsm_tty: fixed redundant variable issue.Jakob Østergaard Jensen1-6/+4
The variable "len" gets assigned once and it's value copied to "n", which is then used for the rest of the function. This patch fixes the unnecessary variable reassignment by using "len" throughout the function instead. Signed-off-by: Jakob Østergaard Jensen <jakob.jensen.91@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-01-28tty: Use termios c_*flag macrosPeter Hurley1-2/+1
Expressions of the form "tty->termios.c_*flag & FLAG" are more clearly expressed with the termios flags macros, I_FLAG(), C_FLAG(), O_FLAG(), and L_FLAG(). Convert treewide. Signed-off-by: Peter Hurley <peter@hurleysoftware.com> Acked-by: Johan Hovold <johan@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-12-13serial/jsm: Deinline neo_parse_isr, save 688 bytesDenys Vlasenko1-1/+1
This function compiles to 811 bytes of machine code. Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com> CC: Jiri Slaby <jslaby@suse.com> CC: linux-serial@vger.kernel.org Reviewed-by: Peter Hurley <peter@hurleysoftware.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-12-13drivers: serial: jsm: Switch "jsm" to JSM_DRIVER_NAMEGavin Thomas Claugus1-2/+2
This commit replaces every instance of the string "jsm" in the driver with JSM_DRIVER_NAME, as the two are equivalent. This should increase overall consistency. Signed-off-by: Gavin Thomas Claugus <gclaugus@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-03-26serial: jsm: some off by one bugsDan Carpenter2-4/+4
"brd->nasync" amd "brd->maxports" are the same. They hold the number of filled out channels in the brd->channels[] array. These tests should be ">=" instead of ">" so that we don't read one element past the end. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Acked-by: Thadeu Lima de Souza Cascardo <cascardo@linux.vnet.ibm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-11-25serial: jsm: Fix unnecessary space before function ptr argumentsKonrad Zapalowicz1-15/+15
This commit deals with the checkpatch warning "Unnecessary space before function pointer arguments". Signed-off-by: Konrad Zapalowicz <bergo.torino@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-11-25serial: jsm: Replace magic value with the proper defineKonrad Zapalowicz1-1/+1
The changed function flushes the tx UART and the '4' corresponds to the UART_FCR_CLEAR_XMIT value. This commit replaces the magic number with this define. Signed-off-by: Konrad Zapalowicz <bergo.torino@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-11-25serial: jsm: Fix the alignment of the switch satementKonrad Zapalowicz1-12/+12
This commit fixes the alignment of the 'case's i the switch statement. Signed-off-by: Konrad Zapalowicz <bergo.torino@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-11-25serial: jsm: Remove unnecessary if statementKonrad Zapalowicz2-6/+0
The flow of {neo,cls}_param() shows that at this stage the baud rate has a non-zero value. This fact makes the if clausule obsolete and acknowledges it's removal. Signed-off-by: Konrad Zapalowicz <bergo.torino@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-11-25serial: jsm: Remove unnecessary parameter from clear_break()Konrad Zapalowicz4-4/+4
The 'force' parameter to the {cls,neo}_send_break() function has been removed because it has not been used. The client to this API (the tty code) always called this function with only one value. Signed-off-by: Konrad Zapalowicz <bergo.torino@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-11-06drivers: serial: jsm: Remove FSF address from the file documentation/headerKonrad Zapalowicz5-25/+0
This commit removes the address of Free Software Foundation from each of the mentioned file in order to suppress the checkpatch warning. Signed-off-by: Konrad Zapalowicz <bergo.torino@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-11-06drivers: serial: jsm: Enable support for Digi Classic adaptersKonrad Zapalowicz3-31/+126
This commit enables support for the Digi Classic adapters line in the jsm driver. This means changes in: - device probing code - device cleanup code - driver description (Kconfig) The init/cleanup code is based on the staging/dgnc driver. Signed-off-by: Konrad Zapalowicz <bergo.torino@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-11-06drivers: serial: jsm: Add the Classic board implementationKonrad Zapalowicz3-2/+993
This commit adds the Digi Classic board implementation to the staging/jsm driver. The code here is taken from the staging/dgnc driver and modified to match the serial/jsm state. This work is mostly based on the changes that has been done to the code handling the Digi Neo cards with the inspiration coming from the diff between staging/dgnc and serial/jsm as well as the LKML history for the jsm_neo.c The code compiles now and has no sparse and checkpatch errors or warnings. Signed-off-by: Konrad Zapalowicz <bergo.torino@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-11-06drivers: serial: jsm: Add Classic board UART structureKonrad Zapalowicz1-1/+58
This commit adds the UART structure for the Digi Classic cards. This code comes from the staging/dgnc driver. Signed-off-by: Konrad Zapalowicz <bergo.torino@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-11-05TTY: jsm: use container_of to resolve jsm_channel from uart_portFabian Frederick1-10/+20
Use container_of instead of casting first structure member. Signed-off-by: Fabian Frederick <fabf@skynet.be> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-08jsm: add support for additional Neo cardsBill Pemberton2-4/+44
Add device ids for additional Neo cards. The ids come from the dgnc driver. Signed-off-by: Bill Pemberton <wfp5p@worldbroken.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-07-09serial: treewide: Remove empty implementations of enable_ms()Alexander Shiyan1-6/+0
Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-03-18TTY: jsm, remove superfluous checkJiri Slaby1-6/+0
data_len in jsm_input cannot be zero as we would jump out early in the function. It also cannot be negative because it is an int and we do bitwise and with 8192. So remove the check. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Cc: Lucas Tavares <lucaskt@linux.vnet.ibm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-15TTY: switch tty_flip_buffer_pushJiri Slaby1-1/+1
Now, we start converting tty buffer functions to actually use tty_port. This will allow us to get rid of the need of tty in many call sites. Only tty_port will needed and hence no more tty_port_tty_get in those paths. Now, the one where most of tty_port_tty_get gets removed: tty_flip_buffer_push. IOW we also closed all the races in drivers not using tty_port_tty_get at all yet. Also we move tty_flip_buffer_push declaration from include/linux/tty.h to include/linux/tty_flip.h to all others while we are changing it anyway. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-15TTY: switch tty_insert_flip_stringJiri Slaby1-1/+1
Now, we start converting tty buffer functions to actually use tty_port. This will allow us to get rid of the need of tty in many call sites. Only tty_port will needed and hence no more tty_port_tty_get in those paths. tty_insert_flip_string this time. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>