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2010-08-10USB: EHCI: EHCI 1.1 addendum: preparationAlek Du4-7/+162
EHCI 1.1 addendum introduced several energy efficiency extensions for EHCI USB host controllers: 1. LPM (link power management) 2. Per-port change 3. Shorter periodic frame list 4. Hardware prefetching This patch is intended to define the HW bits and debug interface for EHCI 1.1 addendum. The LPM and Per-port change patches will be sent out after this patch. Signed-off-by: Jacob Pan <[email protected]> Signed-off-by: Alek Du <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-08-10usb: throw away custom hex digit methodsAndy Shevchenko2-15/+5
Recent kernel has common method to convert hex digit to its value. Signed-off-by: Andy Shevchenko <[email protected]> Cc: David Brownell <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-08-10USB: isd200.c: Remove unnecessary kmalloc castJoe Perches1-2/+1
Signed-off-by: Joe Perches <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-08-10USB: host: Eliminate NULL dereferenceJulia Lawall1-1/+1
The test above allows std to be NULL, so check that std is not NULL before doing the dereference. A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @r exists@ expression E,E1; identifier f; statement S1,S2,S3; @@ if ((E == NULL && ...) || ...) { ... when != if (...) S1 else S2 when != E = E1 * E->f ... when any } else S3 // </smpl> Signed-off-by: Julia Lawall <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-08-10USB: otg.h: Fix the mixup in parameters order.Igor Grinberg1-2/+2
otg_io_write() function does not follow the declaration of struct otg_io_access_ops. Signed-off-by: Igor Grinberg <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-08-10USB: core endpoint: Fix Coding Styles[email protected]1-2/+7
Fixed coding styles in the core usb endpoint. Signed-off-by: Carlos Sánchez Acosta <[email protected]> Signed-off-by: Alejandro Sánchez Acosta <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-08-10USB: core driver: Fix Coding Styles[email protected]1-4/+3
Fixed coding styles in the core usb driver. Signed-off-by: Carlos Sánchez Acosta <[email protected]> Signed-off-by: Alejandro Sánchez Acosta <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-08-10USB: Documentation/usb/linux.inf: Checkpatch cleanupAndrea Gelmini1-15/+15
Documentation/usb/linux.inf:66: ERROR: trailing whitespace Documentation/usb/linux.inf:67: ERROR: trailing whitespace Documentation/usb/linux.inf:98: ERROR: trailing whitespace Documentation/usb/linux.inf:99: ERROR: trailing whitespace Documentation/usb/linux.inf:115: ERROR: trailing whitespace Documentation/usb/linux.inf:116: ERROR: trailing whitespace Documentation/usb/linux.inf:120: ERROR: trailing whitespace Documentation/usb/linux.inf:121: ERROR: trailing whitespace Documentation/usb/linux.inf:122: ERROR: trailing whitespace Documentation/usb/linux.inf:123: ERROR: trailing whitespace Documentation/usb/linux.inf:144: ERROR: trailing whitespace Documentation/usb/linux.inf:145: ERROR: trailing whitespace Documentation/usb/linux.inf:146: ERROR: trailing whitespace Documentation/usb/linux.inf:147: ERROR: trailing whitespace Documentation/usb/linux.inf:158: ERROR: trailing whitespace Signed-off-by: Andrea Gelmini <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-08-10USB: Documentation/usb/hotplug.txt: Checkpatch cleanupAndrea Gelmini1-2/+2
Documentation/usb/hotplug.txt:13: ERROR: trailing whitespace Documentation/usb/hotplug.txt:87: ERROR: trailing whitespace Signed-off-by: Andrea Gelmini <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-08-10USB: Documentation/usb/ehci.txt: Checkpatch cleanupAndrea Gelmini1-1/+1
Documentation/usb/ehci.txt:12: ERROR: trailing whitespace Signed-off-by: Andrea Gelmini <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-08-10USB: gadget: Use memdup_userJulia Lawall1-7/+3
Use memdup_user when user data is immediately copied into the allocated region. The semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression from,to,size,flag; position p; identifier l1,l2; @@ - to = \(kmalloc@p\|kzalloc@p\)(size,flag); + to = memdup_user(from,size); if ( - to==NULL + IS_ERR(to) || ...) { <+... when != goto l1; - -ENOMEM + PTR_ERR(to) ...+> } - if (copy_from_user(to, from, size) != 0) { - <+... when != goto l2; - -EFAULT - ...+> - } // </smpl> Signed-off-by: Julia Lawall <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-08-10USB: EHCI: make CONFIG_USB_EHCI_TT_NEWSCHED default to YAlan Stern1-4/+7
This patch (as1382) changes the USB_EHCI_TT_NEWSCHED Kconfig option to be non-experimental and to default to Y. This option has existed for a long time, and I have not heard any complaints concerning it. By contrast, several people have reported that their devices could be made to work only by enabling the option. The point of changing the default is to cause the option to be enabled by distros that simply use the default settings for esoteric things like this. This change was motivated by Bugzilla #15649. Signed-off-by: Alan Stern <[email protected]> CC: David Brownell <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-08-10USB: iuu_phoenix: Add support for different baud rates.James Courtier-Dutton1-13/+41
Signed-off-by: James Courtier-Dutton <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-08-10USB: xhci: Remove obsolete debugging printk.Sarah Sharp1-1/+0
When code to manipulate the command register was refactored from xhci_run() to xhci_start(), a debugging statement was left behind that no longer applies. Remove that statement. Signed-off-by: Sarah Sharp <[email protected]> Reported-by: Sergei Shtylyov <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-08-10USB: speedtouch: fixed more brace and spacing coding style issuesNicolas Kaiser2-11/+11
Fixed spacing coding style issues. Signed-off-by: Nicolas Kaiser <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-08-10USB: speedtouch: fixed brace and spacing coding style issuesNicolas Kaiser2-7/+6
Fixed brace coding style issues. Signed-off-by: Nicolas Kaiser <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-08-10USB: UHCI: acquire spinlock before calling start_rh()Alan Stern2-2/+4
This patch (as1392) fixes a bug in uhci-hcd: The start_rh() routine is supposed to be called with the private spinlock held. If an IRQ comes in at just the wrong time, the driver will think the controller has died when in fact it simply hasn't start yet. The patch also addresses some issues that may prevent an URB from being unlinked after the controller has stopped. This is an abnormal occurrence (ordinarily the controller stops only when the entire bus is suspended and hence there are no active URBs), so the pathways haven't gotten much testing. These two changes may be a little more than is strictly necessary, but clearly they won't hurt. Signed-off-by: Alan Stern <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-08-10USB: add check to detect host controller hardware removalAlan Stern1-0/+8
This patch (as1391) fixes a problem that can occur when USB host controller hardware is hot-unplugged. If no interrupts are generated by the unplug then the HCD may not realize that the controller is gone, and the subsequent unbind may hang waiting for interrupts that never arrive. The solution (for PCI-based controllers) is to call the HCD's interrupt handler at the start of usb_hcd_pci_remove(). If the hardware is gone, the handler will realize this when it tries to read the controller's status register. Signed-off-by: Alan Stern <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-08-10USB: don't stop root-hub status polls too soonAlan Stern2-7/+26
This patch (as1390) fixes a problem that crops up when a UHCI host controller is unbound from uhci-hcd while there are still some active URBs. The URBs have to be unlinked when the root hub is unregistered, and uhci-hcd relies upon root-hub status polls as part of its unlinking procedure. But usb_hcd_poll_rh_status() won't make those status calls if hcd->rh_registered is clear, and the flag is cleared _before_ the unregistration takes place. Since hcd->rh_registered is used for other things and needs to be cleared early, the solution is to add a new flag (rh_pollable) and use it instead. It gets cleared _after_ the root hub is unregistered. Now that the status polls don't end too soon, we have to make sure they also don't occur too late -- after the root hub's usb_device structure or the HCD's private structures are deallocated. Therefore the patch adds usb_get_device() and usb_put_device() calls to protect the root hub structure, and it adds an extra del_timer_sync() to prevent the root-hub timer from causing an unexpected status poll. This additional complexity would not be needed if the HCD framework had provided separate stop() and release() callbacks instead of just stop(). This lack could be fixed at some future time (although it would require changes to every host controller driver); when that happens this patch won't be needed any more. Signed-off-by: Alan Stern <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-08-10USB: fix failure path in usb_add_hcd()Alan Stern1-2/+16
This patch (as1389) fixes some errors in the failure pathway of usb_add_hcd(). The actions it takes ought to be exactly the same as those taken by usb_remove_hcd(), but they aren't. In one case (removal of the usb_bus_attr_group), the two routines are brought into agreement by changing usb_remove_hcd(). All the other discrepancies are fixed by changing usb_add_hcd(). Signed-off-by: Alan Stern <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-08-10Merge branch 'for-linus' of ↵Linus Torvalds4-13/+23
git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k: zorro: Fix reading of proc/bus/zorro/* in small chunks zorro: BKL removal m68k/mac: Fix RTC on PMU machines m68k/mac: Add color classic ii support arch/m68k/sun3/leds.c: Checkpatch cleanup
2010-08-10Merge branch 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6Linus Torvalds17-38/+275
* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6: [S390] dasd: tunable missing interrupt handler [S390] dasd: allocate fallback cqr for reserve/release [S390] topology: use default MC domain initializer [S390] initrd: change default load address [S390] cmm, smsgiucv_app: convert sender to uppercase [S390] cmm: add missing __init/__exit annotations [S390] cio: use all available paths for some internal I/O [S390] ccwreq: add ability to use all paths [S390] cio: ccw_device_online_store return -EINVAL in case of missing driver [S390] cio: Log the response from the unit check handler [S390] cio: CHSC SIOSL Support
2010-08-10Merge branch 'bkl/ioctl' of ↵Linus Torvalds9-124/+180
git://git.kernel.org/pub/scm/linux/kernel/git/frederic/random-tracing * 'bkl/ioctl' of git://git.kernel.org/pub/scm/linux/kernel/git/frederic/random-tracing: staging: Pushdown bkl to easycap ioctl handlers autofs/autofs4: Move compat_ioctl handling into fs v4l: Convert v4l2-dev to unlocked_ioctl ia64/perfmon: Convert to unlocked_ioctl sunrpc: Remove duplicated #include ncpfs: Remove duplicated #include
2010-08-10Merge branch 'kmemleak' of ↵Linus Torvalds3-29/+101
git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-2.6-cm * 'kmemleak' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-2.6-cm: kmemleak: Fix typo in the comment lib/scatterlist: Hook sg_kmalloc into kmemleak (v2) kmemleak: Add DocBook style comments to kmemleak.c kmemleak: Introduce a default off mode for kmemleak kmemleak: Show more information for objects found by alias
2010-08-10U6715 16550A serial driver supportPhilippe Langlais4-4/+44
UART Features extract from STEricsson U6715 data-sheet (arm926 SoC for mobile phone): * Fully compatible with industry standard 16C550 and 16C450 from various manufacturers * RX and TX 64 byte FIFO reduces CPU interrupts * Full double buffering * Modem control signals include CTS, RTS, (and DSR, DTR on UART1 only) * Automatic baud rate selection * Manual or automatic RTS/CTS smart hardware flow control * Programmable serial characteristics: – Baud rate generation (50 to 3.25M baud) – 5, 6, 7 or 8-bit characters – Even, odd or no-parity bit generation and detection – 1, 1.5 or 2 stop bit generation * Independent control of transmit, receive, line status, data set interrupts and FIFOs * Full status-reporting capabilities * Separate DMA signaling for RX and TX * Timed interrupt to spread receive interrupt on known duration * DMA time-out interrupt to allow detection of end of reception * Carkit pulse coding and decoding compliant with USB carkit control interface [40] In 16550A auto-configuration, if the fifo size is 64 then it's an U6 16550A port Add set_termios hook & export serial8250_do_set_termios to change uart clock following baudrate Signed-off-by: Philippe Langlais <[email protected]> Acked-by: Alan Cox <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-08-10Char: nozomi, set tty->driver_data appropriatelyJiri Slaby1-1/+2
Sorry, one more fix, this one depends on the other, so this is rather 2/2. -- tty->driver_data is used all over the code, but never set. This results in oopses like: BUG: unable to handle kernel NULL pointer dereference at 0000000000000130 IP: [<ffffffff814a0040>] mutex_lock+0x10/0x40 ... Pid: 2157, comm: modem-manager Not tainted 2.6.34.1-0.1-desktop #1 2768DR7/2768DR7 RIP: 0010:[<ffffffff814a0040>] [<ffffffff814a0040>] mutex_lock+0x10/0x40 RSP: 0018:ffff88007b16fa50 EFLAGS: 00010286 RAX: 0000000000000000 RBX: 0000000000000130 RCX: 0000000000000003 RDX: 0000000000000003 RSI: 0000000000000286 RDI: 0000000000000130 RBP: 0000000000001000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000130 R13: 0000000000000001 R14: 0000000000000000 R15: ffff88007b16feb4 ... Call Trace: [<ffffffffa077690d>] ntty_write_room+0x4d/0x90 [nozomi] ... Set tty->driver_data to the computed port in .install to not recompute it in every place where needed. Switch .open to use driver_data too. Signed-off-by: Jiri Slaby <[email protected]> Cc: Alan Cox <[email protected]> Cc: stable <[email protected]> [.34, .35] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-08-10Char: nozomi, fix tty->count countingJiri Slaby1-0/+1
Currently ntty_install omits to increment tty count and we get the following warnings: Warning: dev (noz2) tty->count(0) != #fd's(1) in tty_open So to fix that, add one tty->count++ there. Signed-off-by: Jiri Slaby <[email protected]> Cc: Alan Cox <[email protected]> Cc: stable <[email protected]> [.34, .35] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-08-10serial: max3107: Fix gpiolib supportAlan Cox1-0/+2
Because of the way gpiolib works we actually need to ifdef this in our header file Signed-off-by: Alan Cox <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-08-10hsu: call PCI pm hooks in suspend/resume functionFeng Tang1-9/+22
Also add check for dma controller or the uart ports. Signed-off-by: Feng Tang <[email protected]> Signed-off-by: Alan Cox <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-08-10hsu: some code cleanupFeng Tang1-66/+19
Major changes are: * refine the comments in the driver * remove unused member from structure "hsu_port" * extended spin_lock protoction for dma mode in port_irq() Signed-off-by: Feng Tang <[email protected]> Signed-off-by: Alan Cox <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-08-10hsu: add a periodic timer to check dma rx channelFeng Tang1-3/+47
A general problem for uart rx dma channel is you never know when and how much data will be received, so usually preset it a DMA descriptor with a big size, and rely on DMA RX timeout IRQ to know there is some data in rx channel. For a RX data size of multiple of MOTSR, there will be no timeout IRQ issued, thus OS will never be notified about that. This is a work around for that, current timer frequency is 5 times per second, it should vary according to the baud rate When future silicon version fix the problem, this workaround need be removed Signed-off-by: Feng Tang <[email protected]> Signed-off-by: Alan Cox <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-08-10hsu: driver for Medfield High Speed UART deviceFeng Tang6-0/+1564
This is a PCI & UART driver, which suppors both PIO and DMA mode UART operation. It has 3 identical UART ports and one internal DMA controller. Current FW will export 4 pci devices for hsu: 3 uart ports and 1 dma controller, each has one IRQ line. And we need to discuss the device model, one PCI device covering whole HSU should be a better model, but there is a problem of how to export the 4 IRQs info Current driver set the highest baud rate to 2746800bps, which is easy to scale down to 115200/230400.... To suport higher baud rate, we need add special process, change DLAB/DLH/PS/DIV/MUL registers all together. 921600 is the highest baud rate that has been tested with Bluetooth modem connected to HSU port 0. Will test more when there is right BT firmware. Current version contains several work around for A0's Silicon bugs Signed-off-by: Feng Tang <[email protected]> Signed-off-by: Alan Cox <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-08-10mxser: remove unnesesary NULL checkKulikov Vasiliy1-1/+1
mxser_transmit_chars(tty, port) is called only from mxser_interrupt(). NULL check is performed in mxser_interrupt() so it is redundant here. Signed-off-by: Kulikov Vasiliy <[email protected]> Acked-by: Jiri Slaby <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-08-10serial: add support for OX16PCI958 cardLytochkin Boris1-0/+13
Signed-off-by: Lytochkin Boris <[email protected]> Tested-by: Lytochkin Boris <[email protected]> Signed-off-by: Alexander Beregalov <[email protected]> Cc: stable <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-08-10serial: 68328serial.c: remove dead (ALMA_ANS | DRAGONIXVZ | M68EZ328ADS)Christoph Egger1-11/+5
(ALMA_ANS | DRAGONIXVZ | M68EZ328ADS) doesn't exist in Kconfig, therefore remove all references to it from the source code. Signed-off-by: Christoph Egger <[email protected]> Acked-by: Greg Ungerer <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-08-10timbuart: use __devinit and __devexit macros for probe and removeRichard Röjfors1-3/+3
Move the probe and remove functions to the devinit and devexit sections. Signed-off-by: Richard Röjfors <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-08-10serial: MMIO32 support for 8250_early.cSamium Gromoff2-15/+45
Provide MMIO32 support in 8250_early (aka earlycon) [[email protected]: fix printk format warnings] [[email protected]: fix printk args some more] Signed-off-by: Samium Gromoff <[email protected]> Signed-off-by: Randy Dunlap <[email protected]> Cc: KOSAKI Motohiro <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-08-10serial: mcf: don't take spinlocks in already protected functionsYury Georgievskiy1-18/+13
Don't take the port spinlock in uart functions where the serial core already takes care of locking/unlocking them. The code would actually lock up on architectures where spinlocks are implemented. Also protect calling mcf_rx_chars/mcf_tx_chars in the interrupt handler by the port spinlock and use IRQ_RETVAL to return from isr. [[email protected]: make irq-handler return value more explicit] Signed-off-by: Yury Georgievskiy <[email protected]> Cc: Alan Cox <[email protected]> Acked-by: Greg Ungerer <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-08-10serial: general fixes in the serial_rs485 structureClaudio Scordino2-4/+11
Fix several issues related to the RS485 interface: - It adds the flag SER_RS485_RTS_BEFORE_SEND that was missing from the serial_rs485 structure (even if "delay_rts_before_send" was existing) - It adds a further "delay_rts_after_send" field for those drivers that can have a delay after send (e.g., atmel_serial) - It fixes the usage of the structure in the atmel_serial driver (where "delay_rts_before_send" should be used instead of "delay_rts_after_send"). Signed-off-by: Claudio Scordino <[email protected]> Signed-off-by: Bernhard Roth <[email protected]> Cc: Philippe De Muyter <[email protected]> Cc: Alan Cox <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-08-10serial: fix missing bit coverage of ASYNC_FLAGSJohn Villalovos1-1/+1
It seems that currently ASYNC_FLAGS is one bit short of covering all the bits of the ASYNC user flags. In particular it does not cover the ASYNC_AUTOPROBE bit. ASYNCB_LAST_USER and ASYNCB_AUTOPROBE are both equal to 15. Therefore: ASYNC_AUTOPROBE = 1000 0000 0000 0000 ASYNC_FLAGS = 0111 1111 1111 1111 So ASYNC_FLAGS is not covering the ASYNC_AUTOPROBE bit. This patch fixes the issue and with the patch the values will be: ASYNC_AUTOPROBE = 1000 0000 0000 0000 ASYNC_FLAGS = 1111 1111 1111 1111 As a side note, doing a "git grep" I didn't find any use of ASYNC_AUTOPROBE or ASYNCB_AUTOPROBE in the kernel, besides this include file. Signed-off-by: John Villalovos <[email protected]> Cc: Alan Cox <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-08-10serial: "altera_uart: simplify altera_uart_console_putc()" checkpatch fixesAndrew Morton1-1/+1
ERROR: code indent should use tabs where possible #32: FILE: drivers/serial/altera_uart.c:397: +^I ALTERA_UART_STATUS_TRDY_MSK))$ total: 1 errors, 0 warnings, 39 lines checked ./patches/altera_uart-simplify-altera_uart_console_putc.patch has style problems, please review. If any of these errors are false positives report them to the maintainer, see CHECKPATCH in MAINTAINERS. Please run checkpatch prior to sending patches This fix got lost when someone merged "altera_uart: simplify altera_uart_console_putc()". Please don't lose fixes. Please don't write of mere patches which have trivial checkpatch errors. Cc: Tobias Klauser <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-08-10serial: crisv10: formatting of pointers in printk()Kulikov Vasiliy1-2/+2
Use %p instead of %08x in printk(). Signed-off-by: Kulikov Vasiliy <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-08-10vt: Fix warning: statement with no effect due to vt_kern.hKevin Winchester1-11/+46
Using: gcc (GCC) 4.5.0 20100610 (prerelease) with CONFIG_CONSOLE_TRANSLATIONS=n, the following warnings are seen: drivers/char/vt_ioctl.c: In function ‘vt_ioctl’: drivers/char/vt_ioctl.c:1309:4: warning: statement with no effect drivers/char/vt.c: In function ‘vc_allocate’: drivers/char/vt.c:774:3: warning: statement with no effect drivers/video/console/vgacon.c: In function ‘vgacon_init’: drivers/video/console/vgacon.c:587:3: warning: statement with no effect drivers/video/console/vgacon.c: In function ‘vgacon_deinit’: drivers/video/console/vgacon.c:606:2: warning: statement with no effect drivers/video/console/fbcon.c: In function ‘fbcon_init’: drivers/video/console/fbcon.c:1087:3: warning: statement with no effect drivers/video/console/fbcon.c:1089:3: warning: statement with no effect drivers/video/console/fbcon.c: In function ‘fbcon_set_disp’: drivers/video/console/fbcon.c:1369:3: warning: statement with no effect drivers/video/console/fbcon.c:1371:3: warning: statement with no effect This is because several functions in include/linux/vt_kern.h are defined to (0). Convert them to static inline functions to silence the warnings and gain a bit of type safety. Signed-off-by: Kevin Winchester <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-08-10tty_io: remove casts from void*Kulikov Vasiliy1-6/+6
Remove unnesessary casts from void*. Signed-off-by: Kulikov Vasiliy <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-08-10serial: max3107: Abstract out the platform specific bitsAlan Cox6-337/+531
At the moment there is only one platform type supported and there is is hard wired, but with these changes the infrastructure is now there for anyone else to provide methods for their hardware. Signed-off-by: Alan Cox <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-08-10serial: max3107: introduce a max3107 driverjianwei.yang4-0/+1809
This device is used by some of the Intel MID platforms. It's not similar enough to the MAX3100 to use the same driver. At this point the driver is specific to the platform and not generalised. We will fix that later. Signed-off-by: jianwei.yang <[email protected]> Signed-off-by: Alan Cox <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-08-10tty: avoid recursive BTM in pty_closeArnd Bergmann2-13/+15
When the console has been redirected, a hangup of the tty will cause tty_release to be called under the big tty_mutex, which leads to a deadlock because hangup is also called under the BTM. This moves the BTM deeper into the tty_hangup function so we can close the redirected tty without holding the BTM. In case of pty, we now need to drop the BTM before calling tty_vhangup. Signed-off-by: Arnd Bergmann <[email protected]> Acked-by: Alan Cox <[email protected]> Cc: Tony Luck <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: Andrew Morton <[email protected]> Cc: John Kacur <[email protected]> Cc: Al Viro <[email protected]> Cc: Ingo Molnar <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-08-108250: fix set_ldisc operationArnd Bergmann1-7/+2
The ldisc number now gets passed into ->set_ldisc. Signed-off-by: Arnd Bergmann <[email protected]> Cc: Alan Cox <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-08-10tty: release BTM while sleeping in block_til_readyArnd Bergmann11-1/+25
Most tty drivers may block while opening a device. Since this possibly depends on another thread closing it first and both threads may need the BTM, we need to release it here. Signed-off-by: Arnd Bergmann <[email protected]> Cc: Alan Cox <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2010-08-10tty: implement BTM as mutex instead of BKLArnd Bergmann3-13/+53
The tty locking now follows the rules for mutexes, so we can replace the BKL usage with a new subsystem wide mutex. Using a regular mutex here will change the behaviour when blocked on the BTM from spinning to sleeping, but that should not be visible to the user. Using the mutex also means that all the BTM is now covered by lockdep. Signed-off-by: Arnd Bergmann <[email protected]> Cc: Alan Cox <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
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