#
f6d47fe5 |
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16-Aug-2022 |
Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> |
usb: serial: Make ->set_termios() old ktermios const 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/20220816115739.10928-8-ilpo.jarvinen@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
94cc7aea |
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05-May-2021 |
Jiri Slaby <jirislaby@kernel.org> |
USB: serial: make usb_serial_driver::write_room return uint Line disciplines expect a positive value or zero returned from tty->ops->write_room (invoked by tty_write_room). Both of them are being updated to return an unsigned int. Switch also usb_serial_driver::write_room and all its users. Signed-off-by: Jiri Slaby <jslaby@suse.cz> [ johan: amend commit message, drop unrelated comment change ] Signed-off-by: Johan Hovold <johan@kernel.org>
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#
c5d1448f |
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08-Feb-2021 |
Uwe Kleine-König <uwe@kleine-koenig.org> |
USB: serial: make remove callback return void All usb_serial drivers return 0 in their remove callbacks and driver core ignores the value returned by usb_serial_device_remove(). So change the remove callback to return void and return 0 unconditionally in usb_serial_device_remove(). Signed-off-by: Uwe Kleine-König <uwe@kleine-koenig.org> Link: https://lore.kernel.org/r/20210208143149.963644-2-uwe@kleine-koenig.org Signed-off-by: Johan Hovold <johan@kernel.org>
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#
74b76256 |
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07-Jul-2020 |
Gustavo A. R. Silva <gustavoars@kernel.org> |
USB: serial: use fallthrough pseudo-keyword Replace the existing /* fall through */ comments and its variants with the new pseudo-keyword macro fallthrough[1]. Also, remove unnecessary fall-through markings when it is the case. [1] https://www.kernel.org/doc/html/latest/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org> Signed-off-by: Johan Hovold <johan@kernel.org>
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#
c34a917a |
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01-Jul-2020 |
Johan Hovold <johan@kernel.org> |
USB: serial: kobil_sct: log failure to update line settings Log failure to update the line settings in set_termios(). This also avoids a W=1 (-Wunused-but-set-variable) warning. Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Johan Hovold <johan@kernel.org>
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#
af846a6f |
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04-Jul-2018 |
Johan Hovold <johan@kernel.org> |
USB: serial: kobil_sct: add missing version error handling Add missing version-request error handling and suppress printing of the (zeroed) transfer-buffer content in case of errors. Signed-off-by: Johan Hovold <johan@kernel.org>
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#
a420b5d9 |
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04-Jul-2018 |
Johan Hovold <johan@kernel.org> |
USB: serial: kobil_sct: fix modem-status error handling Make sure to return -EIO in case of a short modem-status read request. While at it, split the debug message to not include the (zeroed) transfer-buffer content in case of errors. Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: Johan Hovold <johan@kernel.org>
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#
6ca98bc2 |
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02-Nov-2017 |
Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
USB: serial: Remove redundant license text Now that the SPDX tag is in all USB 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. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Johan Hovold <johan@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
5fd54ace |
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03-Nov-2017 |
Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
USB: add SPDX identifiers to all remaining files in drivers/usb/ 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/usb/ and include/linux/usb* 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: Thomas Gleixner <tglx@linutronix.de> Cc: Kate Stewart <kstewart@linuxfoundation.org> Cc: Philippe Ombredanne <pombredanne@nexb.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Felipe Balbi <felipe.balbi@linux.intel.com> Acked-by: Johan Hovold <johan@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
fe1f68a0 |
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24-Oct-2017 |
Gustavo A. R. Silva <garsilva@embeddedor.com> |
USB: serial: kobil_sct: mark expected switch fall-through In preparation to enabling -Wimplicit-fallthrough, mark switch cases where we are expecting to fall through. Addresses-Coverity-ID: 115014 Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com> Signed-off-by: Johan Hovold <johan@kernel.org>
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#
35194572 |
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01-Mar-2017 |
Johan Hovold <johan@kernel.org> |
USB: serial: kobil_sct: simplify endpoint check Simplify the endpoint sanity check by letting core verify that the required endpoints are present. Signed-off-by: Johan Hovold <johan@kernel.org>
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#
21ce5784 |
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03-Jan-2017 |
Johan Hovold <johan@kernel.org> |
USB: serial: kobil_sct: fix NULL-deref in write Fix NULL-pointer dereference in write() should the device lack the expected interrupt-out endpoint: Unable to handle kernel NULL pointer dereference at virtual address 00000054 ... PC is at kobil_write+0x144/0x2a0 [kobil_sct] Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Cc: stable <stable@vger.kernel.org> Signed-off-by: Johan Hovold <johan@kernel.org>
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#
811c3707 |
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29-Oct-2014 |
Johan Hovold <johan@kernel.org> |
USB: kobil_sct: replace unnecessary atomic allocation Use GFP_KERNEL instead of GFP_ATOMIC for allocation in open(), which may sleep. Signed-off-by: Johan Hovold <johan@kernel.org>
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#
19125283 |
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29-Oct-2014 |
Johan Hovold <johan@kernel.org> |
USB: kobil_sct: fix non-atomic allocation in write path Write may be called from interrupt context so make sure to use GFP_ATOMIC for all allocations in write. Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Cc: stable <stable@vger.kernel.org> Signed-off-by: Johan Hovold <johan@kernel.org>
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#
dc477ad3 |
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16-Oct-2014 |
Peter Hurley <peter@hurleysoftware.com> |
USB: kobil_sct: Remove unused transfer buffer allocs Commit 90419cfcb5d9c889b10dc51363c56a4d394d670e, "USB: kobil_sct: fix control requests without data stage", removed the bogus data buffer arguments, but still allocate transfer buffers which are not used. Signed-off-by: Peter Hurley <peter@hurleysoftware.com> Signed-off-by: Johan Hovold <johan@kernel.org>
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#
90419cfc |
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26-May-2014 |
Johan Hovold <johan@kernel.org> |
USB: kobil_sct: fix control requests without data stage Fix incorrect pipe directions and remove bogus data buffer arguments from control requests without data stage. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
d9a38a87 |
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12-Mar-2014 |
Johan Hovold <johan@kernel.org> |
USB: serial: add missing newlines to dev_<level> messages. Add missing newlines to dev_<level> messages. Also make some messages less verbose where appropriate. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>
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#
803a5362 |
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08-Jan-2014 |
Paul Gortmaker <paul.gortmaker@windriver.com> |
usb: delete non-required instances of include <linux/init.h> None of these files are actually using any __init type directives and hence don't need to include <linux/init.h>. Most are just a left over from __devinit and __cpuinit removal, or simply due to code getting copied from one driver to the next. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
8faaaead |
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07-Jan-2014 |
Masanari Iida <standby24x7@gmail.com> |
treewide: fix comments and printk msgs This patch fixed several typo in printk from various part of kernel source. Signed-off-by: Masanari Iida <standby24x7@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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#
feb0a36a |
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16-Apr-2013 |
Johan Hovold <johan@kernel.org> |
USB: kobil_sct: use port interrupt-out urb Use the port interrupt-out urb rather than abusing the port write_urb pointer and allocating a new urb at every open (but the first...). Note that the write_urb abuse would have led to a double free should there ever be interfaces with a bulk-out endpoint. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
9c0343aa |
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16-Apr-2013 |
Johan Hovold <johan@kernel.org> |
USB: kobil_sct: remove unused endpoint address Remove unused interrupt-in endpoint address from private data. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
8e34c6c2 |
|
16-Apr-2013 |
Johan Hovold <johan@kernel.org> |
USB: kobil_sct: fix broken debug code Replace broken and commented-out debug code with usb_serial_debug_data. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
2e124b4a |
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03-Jan-2013 |
Jiri Slaby <jirislaby@kernel.org> |
TTY: switch tty_flip_buffer_push 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>
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#
05c7cd39 |
|
03-Jan-2013 |
Jiri Slaby <jirislaby@kernel.org> |
TTY: switch tty_insert_flip_string 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>
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#
bcbec053 |
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31-Oct-2012 |
Johan Hovold <johan@kernel.org> |
USB: serial: remove driver version information Remove all MODULE_VERSION macros and driver-version information (except for garmin_gps which uses it in a status reply). It is the kernel version that matters and not some private version scheme which rarely even gets updated. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
95940a04 |
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17-Oct-2012 |
Johan Hovold <johan@kernel.org> |
USB: kobil_sct: fix port-data memory leak Fix port-data memory leak by replacing attach and release with port_probe and port_remove. Since commit 0998d0631001288 (device-core: Ensure drvdata = NULL when no driver is bound) the port private data is no longer freed at release as it is no longer accessible. Compile-only tested. Cc: <stable@vger.kernel.org> Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
6c27ad83 |
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18-Sep-2012 |
Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
USB: serial: kobil_sct: switch 4 remaining printk() calls to use dev_dbg These somehow got missed previously (as they weren't calling dbg(), but rather printk() directly), so move over to using dev_dbg() as we never want to see startup messages unless debugging is enabled. Cc: Johan Hovold <jhovold@gmail.com> Cc: Alan Stern <stern@rowland.harvard.edu> Cc: Felipe Balbi <balbi@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
e40e2759 |
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18-Sep-2012 |
Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
USB: Serial: kobil_sct.c: remove debug module parameter Now that all usb-serial modules are only using dev_dbg() the debug module parameter does not do anything at all, so remove it to reduce any confusion if someone were to try to use it. CC: Johan Hovold <jhovold@gmail.com> CC: Alan Stern <stern@rowland.harvard.edu> CC: Felipe Balbi <balbi@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
59d33f2f |
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18-Sep-2012 |
Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
USB: serial: remove debug parameter from usb_serial_debug_data() We should use dev_dbg() for usb_serial_debug_data() like all of the rest of the usb-serial drivers use, so remove the debug parameter as it's not needed. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
b12f7a1c |
|
14-Sep-2012 |
Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
USB: serial: kobil_sct.c: remove dbg() usage dbg() was a very old USB-serial-specific macro. This patch removes it from being used in the driver and uses dev_dbg() instead. CC: Johan Hovold <jhovold@gmail.com> CC: Alan Stern <stern@rowland.harvard.edu> CC: Felipe Balbi <balbi@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
6a6c8b36 |
|
14-Jul-2012 |
Alan Cox <alan@linux.intel.com> |
usb, kobil: Sort out some bogus tty handling Stuff noticed while doing the termios conversion. Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
adc8d746 |
|
14-Jul-2012 |
Alan Cox <alan@linux.intel.com> |
tty: move the termios object into the tty This will let us sort out a whole pile of tty related races. The alternative would be to keep points and refcount the termios objects. However 1. They are tiny anyway 2. Many devices don't use the stored copies 3. We can remove a pty special case Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
68e24113 |
|
08-May-2012 |
Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
USB: serial: rework usb_serial_register/deregister_drivers() This reworks the usb_serial_register_drivers() and usb_serial_deregister_drivers() to not need a pointer to a struct usb_driver anymore. The usb_driver structure is now created dynamically and registered and unregistered as needed. This saves lines of code in each usb-serial driver. All in-kernel users of these functions were also fixed up at this time. The pl2303 driver was tested that everything worked properly. Thanks for the idea to do this from Alan Stern. Cc: Adhir Ramjiawan <adhirramjiawan0@gmail.com> Cc: Alan Stern <stern@rowland.harvard.edu> Cc: Al Borchers <alborchers@steinerpoint.com> Cc: Aleksey Babahin <tamerlan311@gmail.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Andrew Worsley <amworsley@gmail.com> Cc: Bart Hartgers <bart.hartgers@gmail.com> Cc: Bill Pemberton <wfp5p@virginia.edu> Cc: Dan Carpenter <error27@gmail.com> Cc: Dan Williams <dcbw@redhat.com> Cc: Donald Lee <donald@asix.com.tw> Cc: Eric Dumazet <eric.dumazet@gmail.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Felipe Balbi <balbi@ti.com> Cc: Gary Brubaker <xavyer@ix.netcom.com> Cc: Jesper Juhl <jj@chaosbits.net> Cc: Jiri Kosina <jkosina@suse.cz> Cc: Johan Hovold <jhovold@gmail.com> Cc: Julia Lawall <julia@diku.dk> Cc: Kautuk Consul <consul.kautuk@gmail.com> Cc: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Cc: Lonnie Mendez <dignome@gmail.com> Cc: Matthias Bruestle and Harald Welte <support@reiner-sct.com> Cc: Matthias Urlichs <smurf@smurf.noris.de> Cc: Mauro Carvalho Chehab <mchehab@redhat.com> Cc: Michal Sroczynski <msroczyn@gmail.com> Cc: "Michał Wróbel" <michal.wrobel@flytronic.pl> Cc: Oliver Neukum <oliver@neukum.name> Cc: Paul Gortmaker <paul.gortmaker@windriver.com> Cc: Peter Berger <pberger@brimson.com> Cc: Preston Fick <preston.fick@silabs.com> Cc: "Rafael J. Wysocki" <rjw@sisk.pl> Cc: Rigbert Hamisch <rigbert@gmx.de> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Simon Arlott <simon@fire.lp0.eu> Cc: Support Department <support@connecttech.com> Cc: Thomas Tuttle <ttuttle@chromium.org> Cc: Uwe Bonnes <bon@elektron.ikp.physik.tu-darmstadt.de> Cc: Wang YanQing <Udknight@gmail.com> Cc: William Greathouse <wgreathouse@smva.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
32078f91 |
|
07-May-2012 |
Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
USB: serial: remove usb_serial_disconnect call in all drivers This is now set by the usb-serial core, no need for the driver to individually set it. Thanks to Alan Stern for the idea to get rid of it. Cc: William Greathouse <wgreathouse@smva.com> Cc: Matthias Bruestle and Harald Welte <support@reiner-sct.com> Cc: Lonnie Mendez <dignome@gmail.com> Cc: Peter Berger <pberger@brimson.com> Cc: Al Borchers <alborchers@steinerpoint.com> Cc: Gary Brubaker <xavyer@ix.netcom.com> Cc: Oliver Neukum <oliver@neukum.name> Cc: Matthias Urlichs <smurf@smurf.noris.de> Cc: Support Department <support@connecttech.com> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Alan Stern <stern@rowland.harvard.edu> Cc: Mauro Carvalho Chehab <mchehab@redhat.com> Cc: Kautuk Consul <consul.kautuk@gmail.com> Cc: Bill Pemberton <wfp5p@virginia.edu> Cc: Paul Gortmaker <paul.gortmaker@windriver.com> Cc: Bart Hartgers <bart.hartgers@gmail.com> Cc: Johan Hovold <jhovold@gmail.com> Cc: Preston Fick <preston.fick@silabs.com> Cc: Uwe Bonnes <bon@elektron.ikp.physik.tu-darmstadt.de> Cc: Simon Arlott <simon@fire.lp0.eu> Cc: Andrew Worsley <amworsley@gmail.com> Cc: "Michał Wróbel" <michal.wrobel@flytronic.pl> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Eric Dumazet <eric.dumazet@gmail.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Felipe Balbi <balbi@ti.com> Cc: Aleksey Babahin <tamerlan311@gmail.com> Cc: Dan Carpenter <error27@gmail.com> Cc: Jiri Kosina <jkosina@suse.cz> Cc: Donald Lee <donald@asix.com.tw> Cc: Julia Lawall <julia@diku.dk> Cc: Michal Sroczynski <msroczyn@gmail.com> Cc: Wang YanQing <Udknight@gmail.com> Cc: Dan Williams <dcbw@redhat.com> Cc: Thomas Tuttle <ttuttle@chromium.org> Cc: Rigbert Hamisch <rigbert@gmx.de> Cc: "Rafael J. Wysocki" <rjw@sisk.pl> Cc: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Cc: Jesper Juhl <jj@chaosbits.net> Cc: Adhir Ramjiawan <adhirramjiawan0@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
5026bb07 |
|
07-May-2012 |
Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
USB: serial: remove usb_serial_probe call in all drivers This is now set by the usb-serial core, no need for the driver to individually set it. Thanks to Alan Stern for the idea to get rid of it. Cc: William Greathouse <wgreathouse@smva.com> Cc: Matthias Bruestle and Harald Welte <support@reiner-sct.com> Cc: Lonnie Mendez <dignome@gmail.com> Cc: Peter Berger <pberger@brimson.com> Cc: Al Borchers <alborchers@steinerpoint.com> Cc: Gary Brubaker <xavyer@ix.netcom.com> Cc: Oliver Neukum <oliver@neukum.name> Cc: Matthias Urlichs <smurf@smurf.noris.de> Cc: Support Department <support@connecttech.com> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Alan Stern <stern@rowland.harvard.edu> Cc: Mauro Carvalho Chehab <mchehab@redhat.com> Cc: Kautuk Consul <consul.kautuk@gmail.com> Cc: Bill Pemberton <wfp5p@virginia.edu> Cc: Paul Gortmaker <paul.gortmaker@windriver.com> Cc: Bart Hartgers <bart.hartgers@gmail.com> Cc: Johan Hovold <jhovold@gmail.com> Cc: Preston Fick <preston.fick@silabs.com> Cc: Uwe Bonnes <bon@elektron.ikp.physik.tu-darmstadt.de> Cc: Simon Arlott <simon@fire.lp0.eu> Cc: Andrew Worsley <amworsley@gmail.com> Cc: "Michał Wróbel" <michal.wrobel@flytronic.pl> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Eric Dumazet <eric.dumazet@gmail.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Felipe Balbi <balbi@ti.com> Cc: Aleksey Babahin <tamerlan311@gmail.com> Cc: Dan Carpenter <error27@gmail.com> Cc: Jiri Kosina <jkosina@suse.cz> Cc: Donald Lee <donald@asix.com.tw> Cc: Julia Lawall <julia@diku.dk> Cc: Michal Sroczynski <msroczyn@gmail.com> Cc: Wang YanQing <Udknight@gmail.com> Cc: Dan Williams <dcbw@redhat.com> Cc: Thomas Tuttle <ttuttle@chromium.org> Cc: Rigbert Hamisch <rigbert@gmx.de> Cc: "Rafael J. Wysocki" <rjw@sisk.pl> Cc: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Cc: Jesper Juhl <jj@chaosbits.net> Cc: Adhir Ramjiawan <adhirramjiawan0@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
#
f65ee14f |
|
03-May-2012 |
Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
USB: kobil_sct.c: remove dbg() tracing calls dbg() was used a lot a long time ago to trace code flow. Now that we have ftrace, this isn't needed at all, so remove these calls. CC: Johan Hovold <jhovold@gmail.com> CC: Alan Stern <stern@rowland.harvard.edu> CC: Felipe Balbi <balbi@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
#
8a9040b1 |
|
28-Feb-2012 |
Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
USB: serial: kobil_sct.c: use module_usb_serial_driver This converts the kobil_sct.c driver to use the module_usb_serial_driver() call instead of having to have a module_init/module_exit function, saving a lot of duplicated code. CC: Johan Hovold <jhovold@gmail.com> CC: Jiri Slaby <jslaby@suse.cz> CC: Alan Stern <stern@rowland.harvard.edu> CC: Felipe Balbi <balbi@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
#
4d2a7aff |
|
23-Feb-2012 |
Alan Stern <stern@rowland.harvard.edu> |
usb-serial: use new registration API in [k-m]* drivers This patch (as1526) modifies the following usb-serial drivers to utilize the new usb_serial_{de}register_drivers() routines: keyspan, kl5kusb105, kobil_sct, mct_u232, mos7720, mos7840, and moto_modem. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
3297f86a |
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24-Jan-2012 |
Felipe Balbi <balbi@ti.com> |
usb: serial: kobil_sct: fix compile warning: Fix the following compile warning: drivers/usb/serial/kobil_sct.c: In function ‘__check_debug’: drivers/usb/serial/kobil_sct.c:719:1: warning: return from incompatible pointer type [enabled by default] Signed-off-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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#
5833041f |
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06-Nov-2011 |
Johan Hovold <johan@kernel.org> |
USB: serial: remove unnecessary reinitialisations of urb->dev Remove unnecessary reinitialisations of urb->dev before each submission, which were based on the (no longer valid) assumption that serial->dev will be set to NULL on close. Compile-only tested. Cc: Matthias Bruestle and Harald Welte <support@reiner-sct.com> Cc: Lonnie Mendez <dignome@gmail.com> Cc: Peter Berger <pberger@brimson.com> Cc: Al Borchers <alborchers@steinerpoint.com> Cc: Support Department <support@connecttech.com> Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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14b54e39 |
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06-Nov-2011 |
Johan Hovold <johan@kernel.org> |
USB: serial: remove changelogs and old todo entries Remove remaining changelogs from file headers (can still be retrieved through git). Remove even older changelog entries stored in Changelog.history. Remove outdated todo entries from belkin_sa. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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#
6960f40a |
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28-Feb-2011 |
Jiri Slaby <jirislaby@kernel.org> |
USB: serial/kobil_sct, fix potential tty NULL dereference Make sure that we check the return value of tty_port_tty_get. Sometimes it may return NULL and we later dereference that. The only place here is in kobil_read_int_callback, so fix it. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Cc: Alan Cox <alan@linux.intel.com> Cc: stable@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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00a0d0d6 |
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14-Feb-2011 |
Alan Cox <alan@linux.intel.com> |
tty: remove filp from the USB tty ioctls We don't use it so we can trim it from here as we try and stamp the file object dependencies out of the serial code. Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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20b9d177 |
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14-Feb-2011 |
Alan Cox <alan@linux.intel.com> |
tiocmset: kill the file pointer argument Doing tiocmget was such fun we should do tiocmset as well for the same reasons Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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#
60b33c13 |
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14-Feb-2011 |
Alan Cox <alan@linux.intel.com> |
tiocmget: kill off the passing of the struct file We don't actually need this and it causes problems for internal use of this functionality. Currently there is a single use of the FILE * pointer. That is the serial core which uses it to check tty_hung_up_p. However if that is true then IO_ERROR is also already set so the check may be removed. Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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#
c0f631d1 |
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15-May-2010 |
Johan Hovold <johan@kernel.org> |
USB: kobil: fix memory leak An urb transfer buffer is allocated at every open but was never freed. This driver is a bit of a mess... Cc: stable <stable@kernel.org> Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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#
a108bfcb |
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18-Feb-2010 |
Alan Cox <alan@linux.intel.com> |
USB: tty: Prune uses of tty_request_room in the USB layer We have lots of callers that do not need to do this in the first place. Remove the calls as they both cost CPU and for big buffers can mess up the multi-page allocation avoidance. Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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#
7d40d7e8 |
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10-Jan-2010 |
Németh Márton <nm127@freemail.hu> |
USB serial: make USB device id constant The id_table field of the struct usb_device_id is constant in <linux/usb.h> so it is worth to make the initialization data also constant. The semantic match that finds this kind of pattern is as follows: (http://coccinelle.lip6.fr/) // <smpl> @r@ disable decl_init,const_decl_init; identifier I1, I2, x; @@ struct I1 { ... const struct I2 *x; ... }; @s@ identifier r.I1, y; identifier r.x, E; @@ struct I1 y = { .x = E, }; @c@ identifier r.I2; identifier s.E; @@ const struct I2 E[] = ... ; @depends on !c@ identifier r.I2; identifier s.E; @@ + const struct I2 E[] = ...; // </smpl> Signed-off-by: Németh Márton <nm127@freemail.hu> Cc: Julia Lawall <julia@diku.dk> Cc: cocci@diku.dk Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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#
96679f6b |
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28-Dec-2009 |
Johan Hovold <johan@kernel.org> |
USB: kobil_sct: clean up kobil_set_termios Kill string that is allocated and generated using speed and parity settings but is never used (and never has been). Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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#
fe1ae7fd |
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19-Sep-2009 |
Alan Cox <alan@linux.intel.com> |
tty: USB serial termios bits Various drivers have hacks to mangle termios structures. This stems from the fact there is no nice setup hook for configuring the termios settings when the port is created Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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#
a509a7e4 |
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19-Sep-2009 |
Alan Cox <alan@linux.intel.com> |
tty: USB does not need the filp argument in the drivers And indeed none of them use it. Clean this up as it will make moving to a standard open method rather easier. Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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#
f9c99bb8 |
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02-Jun-2009 |
Alan Stern <stern@rowland.harvard.edu> |
USB: usb-serial: replace shutdown with disconnect, release This patch (as1254) splits up the shutdown method of usb_serial_driver into a disconnect and a release method. The problem is that the usb-serial core was calling shutdown during disconnect handling, but drivers didn't expect it to be called until after all the open file references had been closed. The result was an oops when the close method tried to use memory that had been deallocated by shutdown. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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#
335f8514 |
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10-Jun-2009 |
Alan Cox <alan@lxorguk.ukuu.org.uk> |
tty: Bring the usb tty port structure into more use This allows us to clean stuff up, but is probably also going to cause some app breakage with buggy apps as we now implement proper POSIX behaviour for USB ports matching all the other ports. This does also mean other apps that break on USB will now work properly. Signed-off-by: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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#
2400a2bf |
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20-Apr-2009 |
Oliver Neukum <oliver@neukum.org> |
USB: removal of tty->low_latency hack dating back to the old serial code This removes tty->low_latency from all USB serial drivers that push data into the tty layer at hard interrupt context. It's no longer needed and actually harmful. Signed-off-by: Oliver Neukum <oliver@neukum.org> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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#
c197a8db |
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18-Aug-2008 |
Greg Kroah-Hartman <gregkh@suse.de> |
USB: remove info() macro from usb/serial drivers USB should not be having it's own printk macros, so remove info() and use the system-wide standard of dev_info() wherever possible. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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#
4a90f09b |
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13-Oct-2008 |
Alan Cox <alan@redhat.com> |
tty: usb-serial krefs Use kref in the USB serial drivers so that we don't free tty structures from under the URB receive handlers as has historically been the case if you were unlucky. This also gives us a framework for general tty drivers to use tty_port objects and refcount. Contains two err->dev_err changes merged together to fix clashes in the -next tree. Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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#
b31f658b |
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22-Jul-2008 |
Alan Cox <alan@redhat.com> |
kobil_sct: Fix ioctls Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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#
dee0a7cc |
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22-Jul-2008 |
Alan Cox <alan@redhat.com> |
tty-usb-kobil-sct: Coding style Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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#
95da310e |
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22-Jul-2008 |
Alan Cox <alan@redhat.com> |
usb_serial: API all change USB serial likes to use port->tty back pointers for the real work it does and to do so without any actual locking. Unfortunately when you consider hangup events, hangup/parallel reopen or even worse hangup followed by parallel close events the tty->port and port->tty pointers are not guaranteed to be the same as port->tty is the active tty while tty->port is the port the tty may or may not still be attached to. So rework the entire API to pass the tty struct. For console cases we need to pass both for now. This shows up multiple drivers that immediately crash with USB console some of which have been fixed in the process. Longer term we need a proper tty as console abstraction Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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#
441b62c1 |
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03-Mar-2008 |
Harvey Harrison <harvey.harrison@gmail.com> |
USB: replace remaining __FUNCTION__ occurrences __FUNCTION__ is gcc-specific, use __func__ Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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#
0ba4034e |
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16-Apr-2008 |
Greg Kroah-Hartman <gregkh@suse.de> |
USB: serial: remove unneeded number endpoints settings The usb-serial core no longer checks these fields so remove them from all of the individual drivers. They will be removed from the usb-serial core in a patch later in the series. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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#
a40d8540 |
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20-Feb-2008 |
Alan Cox <alan@lxorguk.ukuu.org.uk> |
USB: kobil_sct: Get rid of unneeded priv->line_state Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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#
8dd70705 |
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25-Jan-2008 |
Stefan Bader <stefan.bader@canonical.com> |
USB: Fix usb_serial_driver structure for Kobil cardreader driver. The device setup did miss to initialize the num_interrupt_out field, thus failing to successfully complete the probe function. Signed-off-by: Stefan Bader <stefan.bader@canonical.com> Cc: stable <stable@kernel.org> Cc: Alan Cox <alan@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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#
a6ebf80d |
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18-Oct-2007 |
Alan Cox <alan@lxorguk.ukuu.org.uk> |
USB: kobil_sct: termios encoding fixups - Clear unsupported CMSPAR - Encode resulting speeds Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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#
94d0f7ea |
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22-Aug-2007 |
Alan Cox <alan@lxorguk.ukuu.org.uk> |
USB: kobil_sct: Rework driver No hardware but this driver is currently totally broken so we can't make it much worse. Remove all tbe broken invalid termios handling and replace it with a proper set_termios method. Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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#
6fcdcf04 |
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15-Jun-2007 |
Greg Kroah-Hartman <gregkh@suse.de> |
USB: serial: kobil_sct: clean up urb->status usage This done in anticipation of removal of urb->status, which will make that patch easier to review and apply in the future. Cc: <linux-usb-devel@lists.sourceforge.net> Cc: Thomas Wahrenbruch <linuxusb@kobil.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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#
d9b1b787 |
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17-Dec-2006 |
Johannes Hölzl <johannes.hoelzl@gmx.de> |
USB serial: add driver pointer to all usb-serial drivers Every usb serial driver should have a pointer to the corresponding usb driver. So the usb serial core can add a new id not only to the usb serial driver, but also to the usb driver. Also the usb drivers of ark3116, mos7720 and mos7840 missed the flag no_dynamic_id=1. This is added now. Signed-off-by: Johannes Hölzl <johannes.hoelzl@gmx.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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#
5cbded58 |
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13-Dec-2006 |
Robert P. J. Day <rpjday@mindspring.com> |
[PATCH] getting rid of all casts of k[cmz]alloc() calls Run this: #!/bin/sh for f in $(grep -Erl "\([^\)]*\) *k[cmz]alloc" *) ; do echo "De-casting $f..." perl -pi -e "s/ ?= ?\([^\)]*\) *(k[cmz]alloc) *\(/ = \1\(/" $f done And then go through and reinstate those cases where code is casting pointers to non-pointers. And then drop a few hunks which conflicted with outstanding work. Cc: Russell King <rmk@arm.linux.org.uk>, Ian Molton <spyro@f2s.com> Cc: Mikael Starvik <starvik@axis.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: Roman Zippel <zippel@linux-m68k.org> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Kyle McMartin <kyle@mcmartin.ca> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Jeff Dike <jdike@addtoit.com> Cc: Greg KH <greg@kroah.com> Cc: Jens Axboe <jens.axboe@oracle.com> Cc: Paul Fulghum <paulkf@microgate.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Karsten Keil <kkeil@suse.de> Cc: Mauro Carvalho Chehab <mchehab@infradead.org> Cc: Jeff Garzik <jeff@garzik.org> Cc: James Bottomley <James.Bottomley@steeleye.com> Cc: Ian Kent <raven@themaw.net> Cc: Steven French <sfrench@us.ibm.com> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Neil Brown <neilb@cse.unsw.edu.au> Cc: Jaroslav Kysela <perex@suse.cz> Cc: Takashi Iwai <tiwai@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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#
606d099c |
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08-Dec-2006 |
Alan Cox <alan@lxorguk.ukuu.org.uk> |
[PATCH] tty: switch to ktermios This is the grungy swap all the occurrences in the right places patch that goes with the updates. At this point we have the same functionality as before (except that sgttyb() returns speeds not zero) and are ready to begin turning new stuff on providing nobody reports lots of bugs If you are a tty driver author converting an out of tree driver the only impact should be termios->ktermios name changes for the speed/property setting functions from your upper layers. If you are implementing your own TCGETS function before then your driver was broken already and its about to get a whole lot more painful for you so please fix it 8) Also fill in c_ispeed/ospeed on init for most devices, although the current code will do this for you anyway but I'd like eventually to lose that extra paranoia [akpm@osdl.org: bluetooth fix] [mp3@de.ibm.com: sclp fix] [mp3@de.ibm.com: warning fix for tty3270] [hugh@veritas.com: fix tty_ioctl powerpc build] [jdike@addtoit.com: uml: fix ->set_termios declaration] Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Martin Peschke <mp3@de.ibm.com> Acked-by: Peter Oberparleiter <oberpar@de.ibm.com> Cc: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Hugh Dickins <hugh@veritas.com> Signed-off-by: Jeff Dike <jdike@addtoit.com> Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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#
5505c226 |
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08-Nov-2006 |
Mariusz Kozlowski <m.kozlowski@tuxland.pl> |
usb: kobil_sct kill urb cleanup - usb_kill_urb() cleanup Signed-off-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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#
4f1f1ddd |
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26-Oct-2006 |
Luiz Fernando N. Capitulino <lcapitulino@mandriva.com.br> |
USB: kobil_sct: Use usb_endpoint_* functions Signed-off-by: Luiz Fernando N. Capitulino <lcapitulino@mandriva.com.br> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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#
7d12e780 |
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05-Oct-2006 |
David Howells <dhowells@redhat.com> |
IRQ: Maintain regs pointer globally rather than passing to IRQ handlers Maintain a per-CPU global "struct pt_regs *" variable which can be used instead of passing regs around manually through all ~1800 interrupt handlers in the Linux kernel. The regs pointer is used in few places, but it potentially costs both stack space and code to pass it around. On the FRV arch, removing the regs parameter from all the genirq function results in a 20% speed up of the IRQ exit path (ie: from leaving timer_interrupt() to leaving do_IRQ()). Where appropriate, an arch may override the generic storage facility and do something different with the variable. On FRV, for instance, the address is maintained in GR28 at all times inside the kernel as part of general exception handling. Having looked over the code, it appears that the parameter may be handed down through up to twenty or so layers of functions. Consider a USB character device attached to a USB hub, attached to a USB controller that posts its interrupts through a cascaded auxiliary interrupt controller. A character device driver may want to pass regs to the sysrq handler through the input layer which adds another few layers of parameter passing. I've build this code with allyesconfig for x86_64 and i386. I've runtested the main part of the code on FRV and i386, though I can't test most of the drivers. I've also done partial conversion for powerpc and MIPS - these at least compile with minimal configurations. This will affect all archs. Mostly the changes should be relatively easy. Take do_IRQ(), store the regs pointer at the beginning, saving the old one: struct pt_regs *old_regs = set_irq_regs(regs); And put the old one back at the end: set_irq_regs(old_regs); Don't pass regs through to generic_handle_irq() or __do_IRQ(). In timer_interrupt(), this sort of change will be necessary: - update_process_times(user_mode(regs)); - profile_tick(CPU_PROFILING, regs); + update_process_times(user_mode(get_irq_regs())); + profile_tick(CPU_PROFILING); I'd like to move update_process_times()'s use of get_irq_regs() into itself, except that i386, alone of the archs, uses something other than user_mode(). Some notes on the interrupt handling in the drivers: (*) input_dev() is now gone entirely. The regs pointer is no longer stored in the input_dev struct. (*) finish_unlinks() in drivers/usb/host/ohci-q.c needs checking. It does something different depending on whether it's been supplied with a regs pointer or not. (*) Various IRQ handler function pointers have been moved to type irq_handler_t. Signed-Off-By: David Howells <dhowells@redhat.com> (cherry picked from 1b16e7ac850969f38b375e511e3fa2f474a33867 commit)
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#
a969888c |
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11-Jul-2006 |
Greg Kroah-Hartman <gregkh@suse.de> |
[PATCH] USB: move usb-serial.h to include/linux/usb/ USB serial outside of the kernel tree can not build properly due to usb-serial.h being buried down in the source tree. This patch moves the location of the file to include/linux/usb and fixes up all of the usb serial drivers to handle the move properly. Cc: Sergei Organov <osv@javad.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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#
6ab3d562 |
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30-Jun-2006 |
Jörn Engel <joern@wohnheim.fh-wedel.de> |
Remove obsolete #include <linux/config.h> Signed-off-by: Jörn Engel <joern@wohnheim.fh-wedel.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
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#
80b6ca48 |
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27-Feb-2006 |
Eric Sesterhenn <snakebyte@gmx.de> |
[PATCH] USB: kzalloc() conversion for rest of drivers/usb Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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#
33f0f88f |
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09-Jan-2006 |
Alan Cox <alan@lxorguk.ukuu.org.uk> |
[PATCH] TTY layer buffering revamp The API and code have been through various bits of initial review by serial driver people but they definitely need to live somewhere for a while so the unconverted drivers can get knocked into shape, existing drivers that have been updated can be better tuned and bugs whacked out. This replaces the tty flip buffers with kmalloc objects in rings. In the normal situation for an IRQ driven serial port at typical speeds the behaviour is pretty much the same, two buffers end up allocated and the kernel cycles between them as before. When there are delays or at high speed we now behave far better as the buffer pool can grow a bit rather than lose characters. This also means that we can operate at higher speeds reliably. For drivers that receive characters in blocks (DMA based, USB and especially virtualisation) the layer allows a lot of driver specific code that works around the tty layer with private secondary queues to be removed. The IBM folks need this sort of layer, the smart serial port people do, the virtualisers do (because a virtualised tty typically operates at infinite speed rather than emulating 9600 baud). Finally many drivers had invalid and unsafe attempts to avoid buffer overflows by directly invoking tty methods extracted out of the innards of work queue structs. These are no longer needed and all go away. That fixes various random hangs with serial ports on overflow. The other change in here is to optimise the receive_room path that is used by some callers. It turns out that only one ldisc uses receive room except asa constant and it updates it far far less than the value is read. We thus make it a variable not a function call. I expect the code to contain bugs due to the size alone but I'll be watching and squashing them and feeding out new patches as it goes. Because the buffers now dynamically expand you should only run out of buffering when the kernel runs out of memory for real. That means a lot of the horrible hacks high performance drivers used to do just aren't needed any more. Description: tty_insert_flip_char is an old API and continues to work as before, as does tty_flip_buffer_push() [this is why many drivers dont need modification]. It does now also return the number of chars inserted There are also tty_buffer_request_room(tty, len) which asks for a buffer block of the length requested and returns the space found. This improves efficiency with hardware that knows how much to transfer. and tty_insert_flip_string_flags(tty, str, flags, len) to insert a string of characters and flags For a smart interface the usual code is len = tty_request_buffer_room(tty, amount_hardware_says); tty_insert_flip_string(tty, buffer_from_card, len); More description! At the moment tty buffers are attached directly to the tty. This is causing a lot of the problems related to tty layer locking, also problems at high speed and also with bursty data (such as occurs in virtualised environments) I'm working on ripping out the flip buffers and replacing them with a pool of dynamically allocated buffers. This allows both for old style "byte I/O" devices and also helps virtualisation and smart devices where large blocks of data suddenely materialise and need storing. So far so good. Lots of drivers reference tty->flip.*. Several of them also call directly and unsafely into function pointers it provides. This will all break. Most drivers can use tty_insert_flip_char which can be kept as an API but others need more. At the moment I've added the following interfaces, if people think more will be needed now is a good time to say int tty_buffer_request_room(tty, size) Try and ensure at least size bytes are available, returns actual room (may be zero). At the moment it just uses the flipbuf space but that will change. Repeated calls without characters being added are not cumulative. (ie if you call it with 1, 1, 1, and then 4 you'll have four characters of space. The other functions will also try and grow buffers in future but this will be a more efficient way when you know block sizes. int tty_insert_flip_char(tty, ch, flag) As before insert a character if there is room. Now returns 1 for success, 0 for failure. int tty_insert_flip_string(tty, str, len) Insert a block of non error characters. Returns the number inserted. int tty_prepare_flip_string(tty, strptr, len) Adjust the buffer to allow len characters to be added. Returns a buffer pointer in strptr and the length available. This allows for hardware that needs to use functions like insl or mencpy_fromio. Signed-off-by: Alan Cox <alan@redhat.com> Cc: Paul Fulghum <paulkf@microgate.com> Signed-off-by: Hirokazu Takata <takata@linux-m32r.org> Signed-off-by: Serge Hallyn <serue@us.ibm.com> Signed-off-by: Jeff Dike <jdike@addtoit.com> Signed-off-by: John Hawkes <hawkes@sgi.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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75318d2d |
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21-Nov-2005 |
Greg Kroah-Hartman <gregkh@suse.de> |
[PATCH] USB: remove .owner field from struct usb_driver It is no longer needed, so let's remove it, saving a bit of memory. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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ba9dc657 |
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16-Nov-2005 |
Greg Kroah-Hartman <gregkh@suse.de> |
[PATCH] USB: allow usb drivers to disable dynamic ids This lets drivers, like the usb-serial ones, disable the ability to add ids from sysfs. The usb-serial drivers are "odd" in that they are really usb-serial bus drivers, not usb bus drivers, so the dynamic id logic will have to go into the usb-serial bus core for those drivers to get that ability. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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269bda1c |
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20-Jun-2005 |
Greg Kroah-Hartman <gregkh@suse.de> |
[PATCH] USB Serial: move name to driver structure This fixes up a lot of problems in sysfs with some of the usb serial drivers, they had incorrect driver names. Also saves a tiny ammount of memory. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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18fcac35 |
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20-Jun-2005 |
Greg Kroah-Hartman <gregkh@suse.de> |
[PATCH] USB Serial: get rid of the .owner field in usb_serial_driver Don't duplicate something that's already in struct driver. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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ea65370d |
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20-Jun-2005 |
Greg Kroah-Hartman <gregkh@suse.de> |
[PATCH] USB Serial: rename usb_serial_device_type to usb_serial_driver I'm tired of trying to explain why a "device_type" is really a driver. This better describes exactly what this structure is. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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1da177e4 |
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16-Apr-2005 |
Linus Torvalds <torvalds@ppc970.osdl.org> |
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
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