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2012-03-25um: use the right ifdef around exports in user_syms.cAl Viro2-3/+1
... the same one that controls whether elf_aux.o is included into the build, bringing the vsyscall_e... into it. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Richard Weinberger <richard@nod.at>
2012-03-25um: a bunch of headers can be killed by using generic-yAl Viro7-124/+1
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Richard Weinberger <richard@nod.at>
2012-03-25um: ptrace-generic.h doesn't need user.hAl Viro1-1/+0
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Richard Weinberger <richard@nod.at>
2012-03-25um: kill HOST_TASK_PIDAl Viro4-8/+4
just provide get_current_pid() to the userland side of things instead of get_current() + manual poking in its results Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Richard Weinberger <richard@nod.at>
2012-03-25um: remove pointless include of asm/fixmap.h from asm/pgtable.hAl Viro1-2/+1
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Richard Weinberger <richard@nod.at>
2012-03-25um: asm-offsets.h might as well come from underlying arch...Al Viro1-1/+0
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Richard Weinberger <richard@nod.at>
2012-03-25um: merge processor_{32,64}.h a bit...Al Viro3-20/+10
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Richard Weinberger <richard@nod.at>
2012-03-25um: switch close_chan() to struct lineAl Viro3-9/+11
... and switch chan_interrupt() to directly calling close_one_chan(), so we can lose delay_free_irq argument of close_chan() as well. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Richard Weinberger <richard@nod.at>
2012-03-25um: race fix: initialize delayed_work *before* registering IRQAl Viro3-18/+15
... since chan_interrupt() might schedule it if there's too much incoming data. Kill task argument of chan_interrupt(), while we are at it - it's always &line->task. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Richard Weinberger <richard@nod.at>
2012-03-25um: line->have_irq is never checked...Al Viro2-2/+0
looks like a half-arsed duplicate of line->enabled Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Richard Weinberger <richard@nod.at>
2012-03-25um: chan_init_pri is dead nowAl Viro1-2/+0
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Richard Weinberger <richard@nod.at>
2012-03-25um: switch users of ->chan_list to ->chan_{in,out} (easy cases)Al Viro5-128/+88
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Richard Weinberger <richard@nod.at>
2012-03-25um: sorting out the chan mess, part 1Al Viro2-0/+5
put references to in and out chans associated with line into explicit struct chan * fields in it. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Richard Weinberger <richard@nod.at>
2012-03-25um: finally kill ->init_str leaksAl Viro1-1/+3
now we can do that... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Richard Weinberger <richard@nod.at>
2012-03-25um: get rid of lines_init()Al Viro4-46/+33
move config-independent parts of initialization into register_lines(), call setup_one_line() after it instead of abusing ->init_str. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Richard Weinberger <richard@nod.at>
2012-03-25um: switch line.c tty drivers to dynamic device creationAl Viro4-42/+40
Current code doesn't update the symlinks in /sys/dev/char when we add/remove tty lines. Fixing that allows to stop messing with ->valid before the driver registration, which is a Good Thing(tm) - we shouldn't have it set before we really have the things set up and ready for line_open(). We need tty_driver available to call tty_{un,}register_device(), so we just stash a reference to it into struct line_driver. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Richard Weinberger <richard@nod.at>
2012-03-25um: fix races between line_open() and line_config()Al Viro2-28/+29
Pull parse_chan_pair() call into setup_one_line(), under the mutex. We really don't want open() to succeed before parse_chan_pair() had been done (or after it has failed, BTW). We also want "remove con<n>" to free irqs, etc., same as "config con<n>=none". Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Richard Weinberger <richard@nod.at>
2012-03-25um: convert count_lock to mutex, fix a race in line_open()Al Viro4-20/+12
If two processes are opening the same line, the second to get into line_open() will decide that it doesn't need to do anything (correctly) or wait for anything. The latter, unfortunately, is incorrect - the first opener might not be through yet. We need to have exclusion covering the entire line_init(), including the blocking parts. Moreover, the next patch will need to widen the exclusion on mconsole side of things, also including the blocking bits, so let's just convert that sucker to mutex... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Richard Weinberger <richard@nod.at>
2012-03-25um: get rid of the init_prio messAl Viro4-74/+68
make line_setup() act on a separate array of conf strings + default conf, have lines array initialized explicitly by that data, bury LINE_INIT() macro from hell. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Richard Weinberger <richard@nod.at>
2012-03-25um: switch line_config() to setup_one_line()Al Viro1-6/+16
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Richard Weinberger <richard@nod.at>
2012-03-25um: switch line_remove() to setup_one_line()Al Viro1-8/+5
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Richard Weinberger <richard@nod.at>
2012-03-25um: auxvec.h is never usedAl Viro1-4/+0
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Richard Weinberger <richard@nod.at>
2012-03-25um: clean up the includes in ubdAl Viro3-34/+18
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Richard Weinberger <richard@nod.at>
2012-03-25uml/hostfs: Propagate dirent.d_type to filldir()Geert Uytterhoeven3-4/+8
Currently the (optional) d_type member in struct dirent is always DT_UNKNOWN on hostfs, which may confuse buggy software using readdir(). Make sure to propagate its value from the underlying filesystem if it's available there. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Richard Weinberger <richard@nod.at>
2012-03-25um: irq: Remove IRQF_DISABLEDYong Zhang9-13/+13
Since commit [e58aa3d2: genirq: Run irq handlers with interrupts disabled], We run all interrupt handlers with interrupts disabled and we even check and yell when an interrupt handler returns with interrupts enabled (see commit [b738a50a: genirq: Warn when handler enables interrupts]). So now this flag is a NOOP and can be removed. Signed-off-by: Yong Zhang <yong.zhang0@gmail.com> Signed-off-by: Richard Weinberger <richard@nod.at>
2012-03-24Fix potential endless loop in kswapd when compaction is not enabledRik van Riel1-1/+2
We should only test compaction_suitable if the kernel is built with CONFIG_COMPACTION, otherwise the stub compaction_suitable function will always return COMPACT_SKIPPED and send kswapd into an infinite loop. Reported-by: Anton Blanchard <anton@samba.org> Signed-off-by: Rik van Riel <riel@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-03-24xen/acpi: Fix Kconfig dependency on CPU_FREQKonrad Rzeszutek Wilk1-1/+1
The functions: "acpi_processor_*" sound like they depend on CONFIG_ACPI_PROCESSOR but in reality they are exposed when CONFIG_CPU_FREQ=[y|m]. As such update the Kconfig to have this dependency and fix compile issues: ERROR: "acpi_processor_unregister_performance" [drivers/xen/xen-acpi-processor.ko] undefined! ERROR: "acpi_processor_notify_smm" [drivers/xen/xen-acpi-processor.ko] undefined! ERROR: "acpi_processor_register_performance" [drivers/xen/xen-acpi-processor.ko] undefined! ERROR: "acpi_processor_preregister_performance" [drivers/xen/xen-acpi-processor.ko] undefined! Note: We still need the CONFIG_ACPI Reported-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2012-03-24USB: sa1111: add hcd .reset methodRussell King1-9/+11
Add the .reset method to the HCD, and update the .start method accordingly for this change. Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-03-24USB: sa1111: add OHCI shutdown methodsRussell King1-0/+12
Add OHCI shutdown methods to cleanly shutdown the OHCI controller on system shutdowns and reboots. This avoids the controller continuing to run should be soft-reboot the platform, potentially scribbling over system memory. Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-03-24USB: sa1111: reorganize ohci-sa1111.cRussell King1-134/+93
Combine usb_hcd_sa1111_probe() and ohci_hcd_sa1111_drv_probe(), doing the same for the remove methods. Move sa1111_start_hc and sa1111_stop_hc to be located next to these the probe/release functions, as they're only called from them. Get rid of the /*----*/ breaker lines. Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-03-24USB: sa1111: get rid of nasty printk(KERN_DEBUG "%s: ...", __FILE__)Russell King1-4/+2
Use dev_dbg() instead, it's more friendly. Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-03-24USB: sa1111: sparse and checkpatch cleanupsRussell King1-16/+17
Clean up the ohci-sa1111 driver formatting to be more compliant with current standards, and add 'static' to various function definitions to avoid sparse complaints about undeclared functions. Remove the unnecessary local declaration of 'usb_disabled', which can be found instead in linux/usb.h. Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-03-24ARM: sa11x0: don't static map sa1111Russell King3-15/+0
The sa1111 support will ioremap() the device; there is no need for platforms to setup a static mapping for this. Remove the static mapping for this device from badge4, jornada720 and neponset. Acked-by: Nicolas Pitre <nico@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-03-24ARM: sa1111: use dev_err() rather than printk()Russell King1-1/+1
Use dev_err() to report device specific errors rather than printk(). Acked-by: Nicolas Pitre <nico@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-03-24ARM: sa1111: cleanup sub-device registration and unregistrationRussell King1-11/+16
Move the releasing of resources out of the release function - this allows a cleaner and more conventional arrangement of the registration failure paths and a saner unregistration process for these devices. Acked-by: Nicolas Pitre <nico@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-03-24ARM: sa1111: only setup DMA for DMA capable devicesRussell King1-3/+6
It's pointless registering the PS/2 interfaces with the dmabounce code when there's no DMA support for these in hardware, so only setup the DMA masks for two subdevices which support DMA - the OHCI and SAC. Acked-by: Nicolas Pitre <nico@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-03-24ARM: sa1111: register sa1111 devices with dmabounce in bus notifierRussell King1-55/+74
Use the bus notifier to register sa1111 devices with dmabounce, rather than after the device has been registered, potentially racing with driver binding. Acked-by: Nicolas Pitre <nico@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-03-24ARM: sa1111: move USB interface register definitions to ohci-sa1111.cRussell King2-30/+25
Move the USB interface register definitions into the driver, rather than keeping them in a common place. Acked-by: Nicolas Pitre <nico@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-03-24ARM: sa1111: move PCMCIA interface register definitions to sa1111_generic.cRussell King2-48/+41
Move the PCMCIA interface register definitions into the driver, rather than keeping them in a common place. Acked-by: Nicolas Pitre <nico@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-03-24ARM: sa1111: move PS/2 interface register definitions to sa1111p2.cRussell King2-54/+37
Move the PS/2 interface register definitions into the driver, rather than keeping them in a common location. Acked-by: Nicolas Pitre <nico@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-03-24ARM: sa1111: delete unused physical GPIO register definitionsRussell King1-16/+0
Get rid of the unused GPIO register definitions - we access GPIO registers through the base + offset method, and having the phys address definitions is unnecessary duplication. Acked-by: Nicolas Pitre <nico@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-03-24ARM: sa1111: provide a generic way to prevent devices from registeringRussell King6-5/+7
Some platforms don't want certain devices to be registered, because, eg, the interface is not wired. Provide a way for platforms to prevent various devices from being registered via a devid bitmask in the platform data. Acked-by: Nicolas Pitre <nico@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-03-24ARM: ecard: get rid of NO_IRQ madnessRussell King4-10/+6
Get rid of the NO_IRQ madness from Acorn expansion card handling code. Thankfully, are relatively few users of this here, and so it's easy to audit. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-03-24ARM: riscpc: use DEFINE_RES_xxx()Russell King1-29/+7
Use DEFINE_RES_xxx() to define device resources. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-03-24ARM: riscpc: remove expansion card irq mask registerRussell King1-101/+2
This register is only present on older platforms, and not on RiscPC, so lets remove this unused support. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-03-24ARM: riscpc: convert ecard to use irq_alloc_descs()Russell King1-9/+13
Use irq_alloc_descs() to allocate IRQs for expansion cards. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-03-24ARM: riscpc: use irq chip data in ecard.cRussell King1-2/+3
Use irq chip data to store the expansion card data pointer, rather than converting from the interrupt number to a slot number. This allows the interrupt chip methods to avoid knowing about interrupt numbering. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-03-24ARM: riscpc: move ecard.c to arch/arm/mach-rpcRussell King4-2/+1
RiscPC is the only platform using the Acorn expansion card support, so move it into its mach-* directory. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-03-24ARM: riscpc: remove IRQ_TIMERRussell King2-3/+1
Use IRQ_TIMER0 instead, which is the same thing. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-03-24ARM: riscpc: use definition for serial port interruptRussell King1-1/+1
Rather than using a plain integer, use the definition already provided. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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