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| * | | | Serial: ifx6x60c: Remove duplicate includes of linux/tty.hJesper Juhl2011-04-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Including linux/tty.h 3 times is a little over the top - once will do. Signed-off-by: Jesper Juhl <jj@chaosbits.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | | | tty: remove invalid location line in file headerJovi Zhang2011-04-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | remove invalid location line in each file header after location moved from driver/char to driver/tty Signed-off-by: Jovi Zhang <bookjovi@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | | | serial: core, remove uart_update_termiosJiri Slaby2011-04-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Now, uart_update_termios is empty, so it's time to remove it. We no longer need a live tty in .dtr_rts. So this should prune all the bugs where tty is zeroed in port->tty during tty_port_block_til_ready. There is one thing to note. We don't set ASYNC_NORMAL_ACTIVE now. It's because this is done already in tty_port_block_til_ready. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | | | serial: core, do not set DTR/RTS twice on startupJiri Slaby2011-04-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In .dtr_rts we do: uart_set_mctrl(uport, TIOCM_DTR | TIOCM_RTS) and call uart_update_termios. It does: uart_set_mctrl(port, TIOCM_DTR | TIOCM_RTS) once again. As the only callsite of uart_update_termios is .dtr_rts, remove the uart_set_mctrl from uart_update_termios to not set it twice. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | | | serial: core, move termios handling to uart_startupJiri Slaby2011-04-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We should not fiddle with speed and cflags in .dtr_rts hook. Actually we might not have tty at that moment already. So move the console cflag copy and speed setup into uart_startup. Actually the speed setup is already there, but we need to call it unconditionally (uart_startup is called from uart_open with hw_init = 0). This means we move uart_change_speed before dtr/rts setup in .dtr_rts. But this should not matter as the setup should be called after uart_change_speed anyway. Before: After: dtr/rts setup (dtr_rts) uart_change_speed (startup) uart_change_speed (update_termios) dtr/rts setup (dtr_rts) dtr/rts setup (update_termios) dtr/rts setup (update_termios) The second setup will dismiss with the next patch. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | | | Char: moxa, do not touch NORMAL_ACTIVE bitJiri Slaby2011-04-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The bit is set in tty_port_block_til_ready (via moxa_open) and unset in tty_port_close (via moxa_close). No need to pin it in the driver. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | | | serial: altera_uart: Scan for a free port if platform device id is -1Tobias Klauser2011-04-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Devices extracted from device tree all seem to have pdev->id set to -1. Up until now we mapped all devices with id -1 to the first device. This behaviour could lead to problems when using more than one Altera UART in a system. This patch changes the behaviour of the driver to scan for the next free id in case the id is -1. Because we cannot refer back to the assigned id in altera_uart_remove, the port instance needs to be stored in device drvdata. Reported-by: David Smoot <davidsmoot@gmail.com> Cc: Anton Vorontsov <cbouatmailru@gmail.com> Signed-off-by: Tobias Klauser <tklauser@distanz.ch> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | | | TTY: fix fail path in tty_openJiri Slaby2011-04-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When tty_add_file fails we omit to clean up. Fix that by calling tty_release appropriatelly. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | | | TTY: plug in deinitialize_tty_structJiri Slaby2011-04-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Used the newly introduced deinitialize_tty_struct to properly shut down ldisc. It is intended to fix the Julian's reported problem. He reports that kmemleak checker warns about memory leak: unreferenced object 0xc0e19860 (size 8): comm cat, pid 1226, jiffies 4294919464 (age 287.476s) hex dump (first 8 bytes): 44 de 2d c1 01 00 00 00 D.-..... backtrace: [<c1065a74>] create_object+0x109/0x1ad [<c1063d2b>] kmem_cache_alloc+0x60/0x68 [<c113505c>] tty_ldisc_get+0x54/0x76 [<c11358c9>] tty_ldisc_init+0xa/0x20 [<c1130ab4>] initialize_tty_struct+0x2d/0x1ac [<c1130c8c>] tty_init_dev+0x59/0x10d [<c113136d>] tty_open+0x24a/0x3a2 ... Signed-off-by: Jiri Slaby <jslaby@suse.cz> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Reported-by: Julian Anastasov <ja@ssi.bg> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | | | TTY: introduce deinit helpers for proper ldisc shutdownJiri Slaby2011-04-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Introduce deinitialize_tty_struct which should be called after initialize_tty_struct and before successfull tty_ldisc_setup. It calls tty_ldisc_deinit which is opposite of tty_ldisc_init. It only puts a reference to ldisc and assigns NULL to tty->ldisc. It will be used to shut down ldisc when tty_release cannot be called yet. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Julian Anastasov <ja@ssi.bg> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | | | TTY: unify pty_unix98_install fail path handlingJiri Slaby2011-04-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Change it so that we call the deinit functions at one place at the end of the function (by gotos). And while at it use some sane label names. This is a preparation for the deinitialization of tty in the next patch. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Julian Anastasov <ja@ssi.bg> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | | | TTY: unify pty_install fail path handlingJiri Slaby2011-04-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Change it so that we call the deinit functions at one place at the end of the function (by gotos). And while at it use some sane label names. This is a preparation for the deinitialization of tty in the next patch. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Julian Anastasov <ja@ssi.bg> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | | | TTY: unify tty_init_dev fail path handlingJiri Slaby2011-04-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Change it so that we call the deinit functions at one place at the end of the function (by gotos). And while at it use some sane label names. This is a preparation for the deinitialization of tty in the next patch. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Julian Anastasov <ja@ssi.bg> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | | | TTY: rocket, remove unused variablesJiri Slaby2011-04-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | drivers/tty/rocket.c:1393:2: warning: Value stored to 'cp' is never read cp = &info->channel; ^ ~~~~~~~~~~~~~~ drivers/tty/rocket.c:1412:2: warning: Value stored to 'cp' is never read cp = &info->channel; ^ ~~~~~~~~~~~~~~ drivers/tty/rocket.c:1730:2: warning: Value stored to 'cp' is never read cp = &info->channel; ^ ~~~~~~~~~~~~~~ drivers/tty/rocket.c:1825:3: warning: Value stored to 'str' is never read str = "8"; ^ ~~~ [many 'str' warnings stripped] drivers/tty/rocket.c:2037:3: warning: Value stored to 'board_type' is never read board_type = "RocketModem"; ^ ~~~~~~~~~~~~~ [some 'board_type' warnings stripped] Signed-off-by: Jiri Slaby <jslaby@suse.cz> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | | | Char: moxa, remove unused variablesJiri Slaby2011-04-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | drivers/tty/moxa.c:1287:2: warning: Value stored to 'port' is never read port = tty->index; ^ ~~~~~~~~~~ drivers/tty/moxa.c:1763:2: warning: Value stored to 'cflag' is never read cflag = termio->c_cflag; /* termio->c_cflag */ ^ ~~~~~~~~~~~~~~~ Signed-off-by: Jiri Slaby <jslaby@suse.cz> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | | | TTY: VT, remove unused variablesJiri Slaby2011-04-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | drivers/tty/vt/vt.c:892:2: warning: Value stored to 'old_screen_size' is never read old_screen_size = vc->vc_screenbuf_size; ^ ~~~~~~~~~~~~~~~~~~~~~ drivers/tty/vt/vt.c:890:2: warning: Value stored to 'old_cols' is never read old_cols = vc->vc_cols; ^ ~~~~~~~~~~~ Signed-off-by: Jiri Slaby <jslaby@suse.cz> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | | | Char: cyclades, fix unused variableJiri Slaby2011-04-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | drivers/tty/cyclades.c:1454:2: warning: Value stored to 'channel' is never read channel = info->line - card->first_line; ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Fix it by moving it to the appropriate debug section where it is used. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | | | TTY: serial_core, remove unused variableJiri Slaby2011-04-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | drivers/tty/serial/serial_core.c:1980:2: warning: Value stored to 'tty' is never read tty = port->tty; ^ ~~~~~~~~~ Signed-off-by: Jiri Slaby <jslaby@suse.cz> Acked-by: Govindraj.R <govindraj.raja@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | | | tty: VT, remove unused variableJiri Slaby2011-04-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | drivers/tty/vt/vt_ioctl.c:1525:2: warning: Value stored to 'kbd' is never read kbd = kbd_table + console; ^ ~~~~~~~~~~~~~~~~~~~ Signed-off-by: Jiri Slaby <jslaby@suse.cz> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | | | drivers/tty/vt/vt_ioctl.c: repair insane ?: expressionAndrew Morton2011-04-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Cc: Arthur Taylor <art@ified.ca> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | | | vt: Add K_OFF return value to vt_ioctl KDGKBMODEArthur Taylor2011-04-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | After adding support for K_OFF in KDSKBMODE, it was forgotten to add support for returning it in KDGKBMODE. Signed-off-by: Arthur Taylor <art@ified.ca> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | | | vt: remove uneeded retval check before tty->ops->open inside tty_openHerton Ronaldo Krzesinski2011-04-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The current check is uneeded, since !retval will always returns true, as retval returned from tty_add_file is checked earlier and tty_open exits if it's not zero. Acked-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Herton Ronaldo Krzesinski <herton.krzesinski@canonical.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | | | | Merge branch 'for-linus' of ↵Linus Torvalds2011-05-23
|\ \ \ \ \ | |_|/ / / |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (39 commits) b43: fix comment typo reqest -> request Haavard Skinnemoen has left Atmel cris: typo in mach-fs Makefile Kconfig: fix copy/paste-ism for dell-wmi-aio driver doc: timers-howto: fix a typo ("unsgined") perf: Only include annotate.h once in tools/perf/util/ui/browsers/annotate.c md, raid5: Fix spelling error in comment ('Ofcourse' --> 'Of course'). treewide: fix a few typos in comments regulator: change debug statement be consistent with the style of the rest Revert "arm: mach-u300/gpio: Fix mem_region resource size miscalculations" audit: acquire creds selectively to reduce atomic op overhead rtlwifi: don't touch with treewide double semicolon removal treewide: cleanup continuations and remove logging message whitespace ath9k_hw: don't touch with treewide double semicolon removal include/linux/leds-regulator.h: fix syntax in example code tty: fix typo in descripton of tty_termios_encode_baud_rate xtensa: remove obsolete BKL kernel option from defconfig m68k: fix comment typo 'occcured' arch:Kconfig.locks Remove unused config option. treewide: remove extra semicolons ...
| * | | | treewide: fix a few typos in commentsJustin P. Mattock2011-05-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - kenrel -> kernel - whetehr -> whether - ttt -> tt - sss -> ss Signed-off-by: Justin P. Mattock <justinmattock@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
| * | | | treewide: cleanup continuations and remove logging message whitespaceJoe Perches2011-04-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Using C line continuation inside format strings is error prone. Clean up the unintended whitespace introduced by misuse of \. Neaten correctly used line continations as well for consistency. drivers/scsi/arcmsr/arcmsr_hba.c has these errors as well, but arcmsr needs a lot more work and the driver should likely be moved to staging instead. Signed-off-by: Joe Perches <joe@perches.com> Acked-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
| * | | | Merge branch 'master' into for-nextJiri Kosina2011-04-26
| |\ \ \ \ | | | |/ / | | |/| | | | | | | | | | | | Fast-forwarded to current state of Linus' tree as there are patches to be applied for files that didn't exist on the old branch.
| * | | | tty: fix typo in descripton of tty_termios_encode_baud_rateUwe Kleine-König2011-04-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Acked-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
| * | | | treewide: remove extra semicolonsJustin P. Mattock2011-04-10
| | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Justin P. Mattock <justinmattock@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* | | | | SERIAL: Lantiq: Add driver for MIPS Lantiq SOCs.John Crispin2011-05-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: John Crispin <blogic@openwrt.org> Signed-off-by: Ralph Hempel <ralph.hempel@lantiq.com> Signed-off-by: Felix Fietkau <nbd@openwrt.org> Cc: alan@lxorguk.ukuu.org.uk Cc: linux-mips@linux-mips.org Cc: linux-serial@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/2269/ Acked-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* | | | | drivercore: revert addition of of_match to struct deviceGrant Likely2011-05-18
| |/ / / |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit b826291c, "drivercore/dt: add a match table pointer to struct device" added an of_match pointer to struct device to cache the of_match_table entry discovered at driver match time. This was unsafe because matching is not an atomic operation with probing a driver. If two or more drivers are attempted to be matched to a driver at the same time, then the cached matching entry pointer could get overwritten. This patch reverts the of_match cache pointer and reworks all users to call of_match_device() directly instead. Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
* | | | tty/n_gsm: fix bug in CRC calculation for gsm1 modeMikhail Kshevetskiy2011-04-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Problem description: gsm_queue() calculate a CRC for arrived frames. As a last step of CRC calculation it call gsm->fcs = gsm_fcs_add(gsm->fcs, gsm->received_fcs); This work perfectly for the case of GSM0 mode as gsm->received_fcs contain the last piece of data required to generate final CRC. gsm->received_fcs is not used for GSM1 mode. Thus we put an additional byte to CRC calculation. As result we get a wrong CRC and reject incoming frame. Signed-off-by: Mikhail Kshevetskiy <mikhail.kshevetskiy@gmail.com> Acked-by: Alan Cox <alan@linux.intel.com> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | | | serial/imx: read cts state only after acking cts change irqUwe Kleine-König2011-04-19
| |/ / |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If cts changes between reading the level at the cts input (USR1_RTSS) and acking the irq (USR1_RTSD) the last edge doesn't generate an irq and uart_handle_cts_change is called with a outdated value for cts. The race was introduced by commit ceca629 ([ARM] 2971/1: i.MX uart handle rts irq) Reported-by: Arwed Springer <Arwed.Springer@de.trumpf.com> Tested-by: Arwed Springer <Arwed.Springer@de.trumpf.com> Cc: stable@kernel.org # 2.6.14+ Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | | Merge branch 'sh-fixes-for-linus' of ↵Linus Torvalds2011-04-07
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6 * 'sh-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: sh: select ARCH_NO_SYSDEV_OPS. sh: fix build error in board-sh7757lcr.c sh: landisk: Remove whitespace sh: landisk: Remove mv_nr_irqs sh: sh-sci: Fix double initialization by serial_console_setup serial: sh-sci: prevent setup of uninitialized serial console dma: shdma: add checking the DMAOR_AE in sh_dmae_err
| * \ \ Merge branch 'master' of ↵Paul Mundt2011-03-31
| |\ \ \ | | | |/ | | |/| | | | | git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into sh-latest
| * | | sh: sh-sci: Fix double initialization by serial_console_setupNobuhiro Iwamatsu2011-03-31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The driver is initialized in a state with an unknown value by serial_console_setup. And initialization fails. This is caused by the initialization by sci_console_init. This function does not seem to be necessary for the present sh-sci driver. Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | | serial: sh-sci: prevent setup of uninitialized serial consoleAlexandre Courbot2011-03-31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 906b17dc089f7fa87e37a9cfe6ee185efc90e0da introduced a condition where the kernel will crash unless a earlyprintk parameter is specified. Without this parameter, sci_console_init is called during early console setup without any port being initialized, and the kernel crashes a little bit later when uart_set_options attemps to invoke set_termios on a port with an ops member equal to NULL. This patch just checks in sci_console_init that the port is properly initialized, and aborts the early console setup if it is not. Signed-off-by: Alexandre Courbot <gnurou@gmail.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* | | | Merge branch 'for-linus2' of git://git.profusion.mobi/users/lucas/linux-2.6Linus Torvalds2011-04-07
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | * 'for-linus2' of git://git.profusion.mobi/users/lucas/linux-2.6: Fix common misspellings
| * | | | Fix common misspellingsLucas De Marchi2011-03-31
| | |/ / | |/| | | | | | | | | | | | | | | | | | Fixes generated by 'codespell' and manually reviewed. Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
* | | | tty: fix endless work loop when the buffer fills upLinus Torvalds2011-04-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit f23eb2b2b285 ('tty: stop using "delayed_work" in the tty layer') ended up causing hung machines on UP with no preemption, because the work routine to flip the buffer data to the ldisc would endlessly re-arm itself if the destination buffer had filled up. With the delayed work, that only caused a timer-driving polling of the tty state every timer tick, but without the delay we just ended up with basically a busy loop instead. Stop the insane polling, and instead make the code that opens up the receive room re-schedule the buffer flip work. That's what we should have been doing anyway. This same "poll for tty room" issue is almost certainly also the cause of excessive kworker activity when idle reported by Dave Jones, who also reported "flush_to_ldisc executing 2500 times a second" back in Nov 2010: http://lkml.org/lkml/2010/11/30/592 which is that silly flushing done every timer tick. Wasting both power and CPU for no good reason. Reported-and-tested-by: Alexander Beregalov <a.beregalov@gmail.com> Reported-and-tested-by: Sitsofe Wheeler <sitsofe@yahoo.com> Cc: Greg KH <gregkh@suse.de> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Dave Jones <davej@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | apbuart: Depend upon sparc.David S. Miller2011-03-31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It absolutely needs to be able to get at pdev_archdata members which are sparc specific. Signed-off-by: David S. Miller <davem@davemloft.net> Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
* | | | sparc32,leon: Fixed APBUART frequency detectionDaniel Hellstrom2011-03-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The UARTs may be located on different APB buses, thus have different UART clock frequency. The system frequency is not the same (but often) as the UART frequency, rather the APB bus frequency that the APBUART is located at has the same frequency, so this looks at the "freq" property instead. Signed-off-by: Daniel Hellstrom <daniel@gaisler.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | | sparc32, leon: APBUART driver must use archdata to get IRQ numberDaniel Hellstrom2011-03-30
|/ / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | See Commit id 1636f8ac2b08410df4766449f7c86b912443cd99 (sparc/of: Move of_device fields into struct pdev_archdata), this patch is similar to 19e4875fb21a69fbf620e84769a74d189c69c58d (of/sparc: fix build regression from of_device changes) Signed-off-by: Daniel Hellstrom <daniel@gaisler.com> Acked-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* / / drivers: Final irq namespace conversionThomas Gleixner2011-03-29
|/ / | | | | | | | | | | Scripted with coccinelle. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* | Merge branch 'for_linus' of ↵Linus Torvalds2011-03-26
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/linux-2.6-kgdb * 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/linux-2.6-kgdb: kdb: add usage string of 'per_cpu' command kgdb,x86_64: fix compile warning found with sparse kdb: code cleanup to use macro instead of value kgdboc,kgdbts: strlen() doesn't count the terminator
| * | kgdboc,kgdbts: strlen() doesn't count the terminatorDan Carpenter2011-03-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | This is an off by one because strlen() doesn't count the null terminator. We strcpy() these strings into an array of size MAX_CONFIG_LEN. Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
* | | lib, arch: add filter argument to show_mem and fix private implementationsDavid Rientjes2011-03-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit ddd588b5dd55 ("oom: suppress nodes that are not allowed from meminfo on oom kill") moved lib/show_mem.o out of lib/lib.a, which resulted in build warnings on all architectures that implement their own versions of show_mem(): lib/lib.a(show_mem.o): In function `show_mem': show_mem.c:(.text+0x1f4): multiple definition of `show_mem' arch/sparc/mm/built-in.o:(.text+0xd70): first defined here The fix is to remove __show_mem() and add its argument to show_mem() in all implementations to prevent this breakage. Architectures that implement their own show_mem() actually don't do anything with the argument yet, but they could be made to filter nodes that aren't allowed in the current context in the future just like the generic implementation. Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Reported-by: James Bottomley <James.Bottomley@hansenpartnership.com> Suggested-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David Rientjes <rientjes@google.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | drivers/tty/bfin_jtag_comm.c: avoid calling put_tty_driver on NULLJulia Lawall2011-03-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | put_tty_driver calls tty_driver_kref_put on its argument, and then tty_driver_kref_put calls kref_put on the address of a field of this argument. kref_put checks for NULL, but in this case the field is likely to have some offset and so the result of taking its address will not be NULL. Labels are added to be able to skip over the call to put_tty_driver when the argument will be NULL. The semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression *x; @@ *if (x == NULL) { ... * put_tty_driver(x); ... return ...; } // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Cc: Torben Hohn <torbenh@gmx.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | tty: stop using "delayed_work" in the tty layerLinus Torvalds2011-03-22
| |/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Using delayed-work for tty flip buffers ends up causing us to wait for the next tick to complete some actions. That's usually not all that noticeable, but for certain latency-critical workloads it ends up being totally unacceptable. As an extreme case of this, passing a token back-and-forth over a pty will take two ticks per iteration, so even just a thousand iterations will take 8 seconds assuming a common 250Hz configuration. Avoiding the whole delayed work issue brings that ping-pong test-case down to 0.009s on my machine. In more practical terms, this latency has been a performance problem for things like dive computer simulators (simulating the serial interface using the ptys) and for other environments (Alan mentions a CP/M emulator). Reported-by: Jef Driesen <jefdriesen@telenet.be> Acked-by: Greg KH <gregkh@suse.de> Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | Merge branch 'for-linus' of ↵Linus Torvalds2011-03-18
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (47 commits) doc: CONFIG_UNEVICTABLE_LRU doesn't exist anymore Update cpuset info & webiste for cgroups dcdbas: force SMI to happen when expected arch/arm/Kconfig: remove one to many l's in the word. asm-generic/user.h: Fix spelling in comment drm: fix printk typo 'sracth' Remove one to many n's in a word Documentation/filesystems/romfs.txt: fixing link to genromfs drivers:scsi Change printk typo initate -> initiate serial, pch uart: Remove duplicate inclusion of linux/pci.h header fs/eventpoll.c: fix spelling mm: Fix out-of-date comments which refers non-existent functions drm: Fix printk typo 'failled' coh901318.c: Change initate to initiate. mbox-db5500.c Change initate to initiate. edac: correct i82975x error-info reported edac: correct i82975x mci initialisation edac: correct commented info fs: update comments to point correct document target: remove duplicate include of target/target_core_device.h from drivers/target/target_core_hba.c ... Trivial conflict in fs/eventpoll.c (spelling vs addition)
| * | serial, pch uart: Remove duplicate inclusion of linux/pci.h headerJesper Juhl2011-02-17
| | | | | | | | | | | | | | | | | | | | | Only include linux/pci.h once in drivers/tty/serial/pch_uart.c Signed-off-by: Jesper Juhl <jj@chaosbits.net> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
generated by cgit v1.2.2 (git 2.25.0) at 2025-04-11 14:59:12 -0400