GitHub/exynos8895/android_kernel_samsung_universal8895.git
18 years ago[PATCH] sys_unshare: remove a broken CLONE_SIGHAND code
Oleg Nesterov [Fri, 8 Dec 2006 10:36:09 +0000 (02:36 -0800)]
[PATCH] sys_unshare: remove a broken CLONE_SIGHAND code

sys_unshare(CLONE_SIGHAND) is broken, the code under 'if (new_sigh)' is
never executed but very wrong. Just remove it to avoid a confusion,
task_lock() has nothing to do with ->sighand changing.

Also, change the comment in unshare_sighand(). Yes, CLONE_THREAD implies
CLONE_SIGHAND, but still it looks confusing. Also, we don't need to check
current->sighand != NULL.

Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] make set_special_pids() static
Oleg Nesterov [Fri, 8 Dec 2006 10:36:08 +0000 (02:36 -0800)]
[PATCH] make set_special_pids() static

Make set_special_pids() static, the only caller is daemonize().

Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] do_acct_process(): don't take tty_mutex
Oleg Nesterov [Fri, 8 Dec 2006 10:36:07 +0000 (02:36 -0800)]
[PATCH] do_acct_process(): don't take tty_mutex

No need to take the global tty_mutex, signal->tty->driver can't go away while
we are holding ->siglock.

Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] do_task_stat(): don't take tty_mutex
Oleg Nesterov [Fri, 8 Dec 2006 10:36:07 +0000 (02:36 -0800)]
[PATCH] do_task_stat(): don't take tty_mutex

->signal->tty is protected by ->siglock, no need to take the global tty_mutex.

Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] tty: ->signal->tty locking
Peter Zijlstra [Fri, 8 Dec 2006 10:36:04 +0000 (02:36 -0800)]
[PATCH] tty: ->signal->tty locking

Fix the locking of signal->tty.

Use ->sighand->siglock to protect ->signal->tty; this lock is already used
by most other members of ->signal/->sighand.  And unless we are 'current'
or the tasklist_lock is held we need ->siglock to access ->signal anyway.

(NOTE: sys_unshare() is broken wrt ->sighand locking rules)

Note that tty_mutex is held over tty destruction, so while holding
tty_mutex any tty pointer remains valid.  Otherwise the lifetime of ttys
are governed by their open file handles.  This leaves some holes for tty
access from signal->tty (or any other non file related tty access).

It solves the tty SLAB scribbles we were seeing.

(NOTE: the change from group_send_sig_info to __group_send_sig_info needs to
       be examined by someone familiar with the security framework, I think
       it is safe given the SEND_SIG_PRIV from other __group_send_sig_info
       invocations)

[schwidefsky@de.ibm.com: 3270 fix]
[akpm@osdl.org: various post-viro fixes]
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Acked-by: Alan Cox <alan@redhat.com>
Cc: Oleg Nesterov <oleg@tv-sign.ru>
Cc: Prarit Bhargava <prarit@redhat.com>
Cc: Chris Wright <chrisw@sous-sol.org>
Cc: Roland McGrath <roland@redhat.com>
Cc: Stephen Smalley <sds@tycho.nsa.gov>
Cc: James Morris <jmorris@namei.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Jan Kara <jack@ucw.cz>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] time: re-add verify_pmtmr_rate
john stultz [Fri, 8 Dec 2006 10:36:02 +0000 (02:36 -0800)]
[PATCH] time: re-add verify_pmtmr_rate

This patch re-adds the verify_pmtmr_rate functionality from 2.6.17 that
I dropped 2.6.18.

This resolves problems seen on older K6 ASUS boards where the ACPI PM
timer runs too fast.

See:
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=211902
http://bugme.osdl.org/show_bug.cgi?id=2375

Thanks to Ian Campbell for re-reporting this and testing the fix!

Signed-off-by: John Stultz <johnstul@us.ibm.com>
Cc: Andi Kleen <ak@suse.de>
Cc: Ian Campbell <ijc@hellion.org.uk>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] Fix linux banner utsname information
Herbert Poetzl [Fri, 8 Dec 2006 10:36:00 +0000 (02:36 -0800)]
[PATCH] Fix linux banner utsname information

utsname information is shown in the linux banner, which also is used for
/proc/version (which can have different utsname values inside a uts
namespaces).  this patch makes the varying data arguments and changes the
string to a format string, using those arguments.

Signed-off-by: Herbert Poetzl <herbert@13thfloor.at>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] CPEI gets warning at kernel/irq/migration.c:27/move_masked_irq()
Hidetoshi Seto [Fri, 8 Dec 2006 10:35:58 +0000 (02:35 -0800)]
[PATCH] CPEI gets warning at kernel/irq/migration.c:27/move_masked_irq()

While running my MCA test (hardware error injection) on 2.6.19,
I got some warning like following:

> BUG: warning at kernel/irq/migration.c:27/move_masked_irq()
>
> Call Trace:
>  [<a000000100013d20>] show_stack+0x40/0xa0
>                                 sp=e00000006b2578d0 bsp=e00000006b2510b0
>  [<a000000100013db0>] dump_stack+0x30/0x60
>                                 sp=e00000006b257aa0 bsp=e00000006b251098
>  [<a0000001000de430>] move_masked_irq+0xb0/0x240
>                                 sp=e00000006b257aa0 bsp=e00000006b251070
>  [<a0000001000de6a0>] move_native_irq+0xe0/0x180
>                                 sp=e00000006b257aa0 bsp=e00000006b251040
>  [<a00000010004ff50>] iosapic_end_level_irq+0x30/0xe0
>                                 sp=e00000006b257aa0 bsp=e00000006b251020
>  [<a0000001000d94d0>] __do_IRQ+0x170/0x400
>                                 sp=e00000006b257aa0 bsp=e00000006b250fd8
>  [<a0000001000116f0>] ia64_handle_irq+0x1b0/0x260
>                                 sp=e00000006b257aa0 bsp=e00000006b250fa8
>  [<a00000010000c3a0>] ia64_leave_kernel+0x0/0x280
>                                 sp=e00000006b257aa0 bsp=e00000006b250fa8
>  [<a000000100690cf0>] _spin_unlock_irqrestore+0x30/0x60
>                                 sp=e00000006b257c70 bsp=e00000006b250f90

It comes from:

[kernel/irq/migration.c]
  26         if (CHECK_IRQ_PER_CPU(desc->status)) {
  27                 WARN_ON(1);
  28                 return;
  29         }

By putting some printk in kernel, I found that irqbalance is trying to
move CPEI which is handled as PER_CPU irq. That's why.

CPEI(Corrected Platform Error Interrupt) is ia64 specific irq, is
allowed to pin to particular processor which selected by the platform, and
even it is PER_CPU but it has set_affinity handler (=iosapic_set_affinity)
as same as other IO-SAPIC-level interrupts. (I don't know why, but
I guess that there would be typical situation where the handler for
migration is needed, such as hotplug - the processor going to be
offline/hot-removed.)

To shut up this warning, there are 2 way at least:
 a) fix CPEI stuff
 b) prohibit setting affinity to PER_CPU irq

I'm not sure what stuff of CPEI need to be fixed, but I think that
returning error to attempting move PER_CPU irq is useful for all
applications since it will never work.

Following small patch takes b) style.
It works, the warning disappeared and irqbalance still runs well.

Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
Cc: Arjan van de Ven <arjan@infradead.org>
Acked-by: Ingo Molnar <mingo@elte.hu>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] move kallsyms data to .rodata
Jan Beulich [Fri, 8 Dec 2006 10:35:57 +0000 (02:35 -0800)]
[PATCH] move kallsyms data to .rodata

Kallsyms data is never written to, so it can as well benefit from
CONFIG_DEBUG_RODATA.

Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] m32r: bootloader support for OPSPUT platform
Hirokazu Takata [Fri, 8 Dec 2006 10:35:57 +0000 (02:35 -0800)]
[PATCH] m32r: bootloader support for OPSPUT platform

This patch supports "m32r-g00ff" bootloader for an OPSPUT platform.

Applying this patch, it is possible to do ATA-boot from an IDE drive or
HTTP-boot from network by m32r-g00ff.

    * arch/m32r/boot/compressed/m32r_sio.c: Fix hangup on OPSPUT at boot.

    * arch/m32r/kernel/io_opsput.c: IDE support for OPSPUT.
    * arch/m32r/kernel/setup_opsput.c: ditto.
    * include/asm-m32r/ide.h: ditto.

Signed-off-by: Kazuhiro Inaoka <inaoka@linux-m32r.org>
Signed-off-by: Hirokazu Takata <takata@linux-m32r.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] m32r: fix ace_handler to pass full 32-bit address
Hirokazu Takata [Fri, 8 Dec 2006 10:35:56 +0000 (02:35 -0800)]
[PATCH] m32r: fix ace_handler to pass full 32-bit address

Don't mask the lower 12-bit of the page fault address.

In the current m32r kernel implementation, we use an access exception
to detect page faults.

This patch fixes ace_handler (access exception handler) for m32r.  In order to
check userspace address in do_page_fault, we have to pass full 32-bit address
to do_page_fault.

Signed-off-by: Hirokazu Takata <takata@linux-m32r.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] m32r: support a synthesizable M32700 core
Hirokazu Takata [Fri, 8 Dec 2006 10:35:55 +0000 (02:35 -0800)]
[PATCH] m32r: support a synthesizable M32700 core

This patch is for supporting a synthesizable M32700 core for the Mappi-II FPGA
board.

On the core, location of MFT (Multi-Function Timer) registers is slightly
different from the M32700 chip.

Signed-off-by: Hirokazu Takata <takata@linux-m32r.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] m32r: make userspace headers platform-independent
Hirokazu Takata [Fri, 8 Dec 2006 10:35:54 +0000 (02:35 -0800)]
[PATCH] m32r: make userspace headers platform-independent

The m32r kernel 2.6.18-rc1 or after cause build errors of "unknown isa
configuration" for userspace application programs, such as glibc, gdb, etc.

This is because the recent kernel do not include linux/config.h not to expose
kernel headers for userspace.

To fix the above compile errors, this patch fixes two headers ptrace.h and
sigcontext.h for m32r and makes them platform-independent.

Signed-off-by: Hirokazu Takata <takata@linux-m32r.org>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] mm: fallback_alloc cpuset_zone_allowed irq fix
Paul Jackson [Fri, 8 Dec 2006 10:35:53 +0000 (02:35 -0800)]
[PATCH] mm: fallback_alloc cpuset_zone_allowed irq fix

fallback_alloc() could end up calling cpuset_zone_allowed() with interrupts
disabled (by code in kmem_cache_alloc_node()), but without __GFP_HARDWALL
set, leading to a possible call of a sleeping function with interrupts
disabled.

This results in the BUG report:

  BUG: sleeping function called from invalid context at kernel/cpuset.c:1520
in_atomic():0, irqs_disabled():1

Thanks to Paul Menage for catching this one.

Signed-off-by: Paul Jackson <pj@sgi.com>
Cc: Paul Menage <menage@google.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years ago[PATCH] ext4 calls journal_stop
Randy Dunlap [Fri, 8 Dec 2006 10:35:52 +0000 (02:35 -0800)]
[PATCH] ext4 calls journal_stop

journal_stop() is not defined for ext4; change to ext4_journal_stop().

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
18 years agoInput: ucb1400 - fix compile error
Dmitry Torokhov [Fri, 8 Dec 2006 06:37:03 +0000 (01:37 -0500)]
Input: ucb1400 - fix compile error

try_to_freeze() was moved into include/linux/freezer.h

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
18 years agoInput: kill maple_keyb.c driver
Paul Mundt [Fri, 8 Dec 2006 06:36:44 +0000 (01:36 -0500)]
Input: kill maple_keyb.c driver

The bus for this was removed entirely some time ago, as well as most
of the drivers that referenced it. maple_keyb seems to have been the
odd one out, and was still sitting in the source tree (though not
actually part of the build system). Kill off the rest of it..

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
18 years agoInput: i8042 - add another Lifebook P7010 to nomux blacklist
Dmitry Torokhov [Fri, 8 Dec 2006 06:36:32 +0000 (01:36 -0500)]
Input: i8042 - add another Lifebook P7010 to nomux blacklist

We already had entry for Fujitsu Lifebook P7010 in the nomux
blacklist but for some reason Fujitsu decided to fiddle with
DMI data...

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
18 years agoMerge rsync://rsync.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Dmitry Torokhov [Fri, 8 Dec 2006 06:07:56 +0000 (01:07 -0500)]
Merge /pub/scm/linux/kernel/git/torvalds/linux-2.6

Conflicts:

drivers/usb/input/hid.h

18 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394...
Linus Torvalds [Fri, 8 Dec 2006 00:18:46 +0000 (16:18 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/ieee1394/linux1394-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6: (55 commits)
  ieee1394: sbp2: code formatting around work_struct stuff
  ieee1394: nodemgr: remove a kcalloc
  ieee1394: conditionally export ieee1394_bus_type
  ieee1394: Consolidate driver registering
  ieee1394: sbp2: convert from PCI DMA to generic DMA
  ieee1394: nodemgr: spaces to tabs
  ieee1394: nodemgr: fix deadlock in shutdown
  ieee1394: nodemgr: remove duplicate assignment
  sbp2: make 1bit bitfield unsigned
  ieee1394: schedule *_oui sysfs attributes for removal
  ieee1394: schedule unused symbol exports for removal
  ieee1394: dv1394: schedule for feature removal
  ieee1394: raw1394: defer feature removal of old isoch interface
  ieee1394: ohci1394: call PMac code in shutdown only for proper machines
  ieee1394: ohci1394: reformat PPC_PMAC platform code
  ieee1394: ohci1394: add PPC_PMAC platform code to driver probe
  ieee1394: sbp2: wrap two functions into one
  ieee1394: sbp2: update comment on things to do
  ieee1394: sbp2: use list_move_tail()
  ieee1394: sbp2: more concise names for types and variables
  ...

18 years agoMerge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm
Linus Torvalds [Thu, 7 Dec 2006 23:40:39 +0000 (15:40 -0800)]
Merge branch 'for-linus' of /home/rmk/linux-2.6-arm

* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: (76 commits)
  [ARM] 4002/1: S3C24XX: leave parent IRQs unmasked
  [ARM] 4001/1: S3C24XX: shorten reboot time
  [ARM] 3983/2: remove unused argument to __bug()
  [ARM] 4000/1: Osiris: add third serial port in
  [ARM] 3999/1: RX3715: suspend to RAM support
  [ARM] 3998/1: VR1000: LED platform devices
  [ARM] 3995/1: iop13xx: add iop13xx support
  [ARM] 3968/1: iop13xx: add iop13xx_defconfig
  [ARM] Update mach-types
  [ARM] Allow gcc to optimise arm_add_memory a little more
  [ARM] 3991/1: i.MX/MX1 high resolution time source
  [ARM] 3990/1: i.MX/MX1 more precise PLL decode
  [ARM] 3986/1: H1940: suspend to RAM support
  [ARM] 3985/1: ixp4xx clocksource cleanup
  [ARM] 3984/1: ixp4xx/nslu2: Fix disk LED numbering (take 2)
  [ARM] 3994/1: ixp23xx: fix handling of pci master aborts
  [ARM] 3981/1: sched_clock for PXA2xx
  [ARM] 3980/1: extend the ARM Versatile sched_clock implementation from 32 to 63 bit
  [ARM] 3979/1: extend the SA11x0 sched_clock implementation from 32 to 63 bit period
  [ARM] 3978/1: macro to provide a 63-bit value from a 32-bit hardware counter
  ...

18 years agoMerge branch 'release' of master.kernel.org:/pub/scm/linux/kernel/git/aegl/linux-2.6
Linus Torvalds [Thu, 7 Dec 2006 23:39:22 +0000 (15:39 -0800)]
Merge branch 'release' of /linux/kernel/git/aegl/linux-2.6

* 'release' of master.kernel.org:/pub/scm/linux/kernel/git/aegl/linux-2.6:
  [IA64] replace kmalloc+memset with kzalloc
  [IA64] resolve name clash by renaming is_available_memory()
  [IA64] Need export for csum_ipv6_magic
  [IA64] Fix DISCONTIGMEM without VIRTUAL_MEM_MAP
  [PATCH] Add support for type argument in PAL_GET_PSTATE
  [IA64] tidy up return value of ip_fast_csum
  [IA64] implement csum_ipv6_magic for ia64.
  [IA64] More Itanium PAL spec updates
  [IA64] Update processor_info features
  [IA64] Add se bit to Processor State Parameter structure
  [IA64] Add dp bit to cache and bus check structs
  [IA64] SN: Correctly update smp_affinty mask
  [IA64] sparse cleanups
  [IA64] IA64 Kexec/kdump

18 years ago[ARM] Merge individual ARM sub-trees
Russell King [Thu, 7 Dec 2006 23:07:26 +0000 (23:07 +0000)]
[ARM] Merge individual ARM sub-trees

Merge:
 Atmel AT91RM9200 and AT91SAM9260 changes
 General ARM developments
 Disconfiguous memory cleanups
 64-bit/32-bit division and sched_clock extension patches
 EP93xx support changes
 IOP support changes

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
18 years agoMerge branch 'intx' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/misc-2.6
Linus Torvalds [Thu, 7 Dec 2006 23:04:20 +0000 (15:04 -0800)]
Merge branch 'intx' of /linux/kernel/git/jgarzik/misc-2.6

* 'intx' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/misc-2.6:
  PCI MSI: always toggle legacy-INTx-enable bit upon MSI entry/exit

18 years ago[ARM] 4002/1: S3C24XX: leave parent IRQs unmasked
Ben Dooks [Thu, 7 Dec 2006 22:59:05 +0000 (23:59 +0100)]
[ARM] 4002/1: S3C24XX: leave parent IRQs unmasked

Do not bother masking/unmasking the parent IRQ
for the mulitplexed EINT irqs, as masking the
leaf seems to be fine.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
18 years ago[ARM] 4001/1: S3C24XX: shorten reboot time
Ben Dooks [Thu, 7 Dec 2006 22:53:21 +0000 (23:53 +0100)]
[ARM] 4001/1: S3C24XX: shorten reboot time

Cut down the time between requesting a reboot
and actually getting the reboot to happen by
a quarter.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
18 years agoPCI MSI: always toggle legacy-INTx-enable bit upon MSI entry/exit
Jeff Garzik [Thu, 7 Dec 2006 22:56:06 +0000 (17:56 -0500)]
PCI MSI: always toggle legacy-INTx-enable bit upon MSI entry/exit

The current code (prior to this change) would disable the PCI INTx
legacy interrupt when enabling MSI... but only on PCI Express.  We
should do this for all MSI devices, for safety's sake.

Signed-off-by: Jeff Garzik <jeff@garzik.org>
18 years ago[ARM] 3983/2: remove unused argument to __bug()
Nicolas Pitre [Thu, 7 Dec 2006 18:09:20 +0000 (19:09 +0100)]
[ARM] 3983/2: remove unused argument to __bug()

It appears that include/asm-arm/bug.h requires include/linux/stddef.h
for the definition of NULL. It seems that stddef.h was always included
indirectly in most cases, and that issue was properly fixed a while ago.

Then commit 5047f09b56d0bc3c21aec9cb16de60283da645c6 incorrectly reverted
change from commit ff10952a547dad934d9ed9afc5cf579ed1ccb53a (bad dwmw2)
and the problem recently resurfaced.

Because the third argument to __bug() is never used anyway, RMK suggested
getting rid of it entirely instead of readding #include <linux/stddef.h>
which this patch does.

Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
18 years ago[ARM] 4000/1: Osiris: add third serial port in
Ben Dooks [Thu, 7 Dec 2006 19:49:01 +0000 (20:49 +0100)]
[ARM] 4000/1: Osiris: add third serial port in

Add the mapping for the third S3C2440 serial
port into the default serial devices for the
Osiris.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
18 years ago[ARM] 3999/1: RX3715: suspend to RAM support
Ben Dooks [Thu, 7 Dec 2006 19:47:58 +0000 (20:47 +0100)]
[ARM] 3999/1: RX3715: suspend to RAM support

The RX3715 is similar to the H1940 in the way
that suspend to RAM works, so we can use most
of the extant support for the H1940 with only
a few modifictions

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
18 years ago[ARM] 3998/1: VR1000: LED platform devices
Ben Dooks [Thu, 7 Dec 2006 19:28:23 +0000 (20:28 +0100)]
[ARM] 3998/1: VR1000: LED platform devices

Support for the GPIO attached LEDs on the VR1000

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
18 years agoieee1394: sbp2: code formatting around work_struct stuff
Stefan Richter [Thu, 7 Dec 2006 22:23:25 +0000 (23:23 +0100)]
ieee1394: sbp2: code formatting around work_struct stuff

Merge is finished, can bring the code in readable style again.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
18 years agoieee1394: nodemgr: remove a kcalloc
Stefan Richter [Sat, 2 Dec 2006 21:23:34 +0000 (22:23 +0100)]
ieee1394: nodemgr: remove a kcalloc

Was I sleepwalking when I wrote this?

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
18 years agoieee1394: conditionally export ieee1394_bus_type
Stefan Richter [Fri, 24 Nov 2006 19:19:09 +0000 (20:19 +0100)]
ieee1394: conditionally export ieee1394_bus_type

Follow-up to patch "Consolidate driver registering":
Since I plan the lifetime of Linux 2.6.20 to be the deprecation phase
of CONFIG_IEEE1394_EXPORT_FULL_API, it seems fair to keep all previously
exported symbols available with this option until this phase is over.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
18 years agoieee1394: Consolidate driver registering
Ben Collins [Thu, 23 Nov 2006 18:59:48 +0000 (13:59 -0500)]
ieee1394: Consolidate driver registering

This patch consolidates some bookkeeping for driver registering. It
closely models what pci_register_driver() does. The main addition is
that the owner of the driver is set, so we get a proper symlink
for /sys/bus/ieee1394/driver/*/module.

Also moves setting of name and bus type into nodemgr. Because of this,
we can remove the EXPORT_SYMBOL for ieee1394_bus_type, since it's now
only used in ieee1394.ko.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
18 years agoieee1394: sbp2: convert from PCI DMA to generic DMA
Stefan Richter [Wed, 22 Nov 2006 20:44:34 +0000 (21:44 +0100)]
ieee1394: sbp2: convert from PCI DMA to generic DMA

API conversion without change in functionality

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
18 years agoieee1394: nodemgr: spaces to tabs
Stefan Richter [Wed, 22 Nov 2006 20:28:19 +0000 (21:28 +0100)]
ieee1394: nodemgr: spaces to tabs

whitespace pedantry

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
18 years agoieee1394: nodemgr: fix deadlock in shutdown
Stefan Richter [Wed, 22 Nov 2006 20:09:42 +0000 (21:09 +0100)]
ieee1394: nodemgr: fix deadlock in shutdown

If "modprobe ohci1394" was quickly followed by "modprobe -r ohci1394",
say with 1 second pause in between, the modprobe -r got stuck in
uninterruptible sleep in kthread_stop.  At the same time the knodemgrd
slept uninterruptibly in bus_rescan_devices_helper.  That's because
driver_detach took the semaphore of the PCI device and
bus_rescan_devices_helper wanted to take the semaphore of the FireWire
host device's parent, which is the same semaphore. This was a regression
since Linux 2.6.16, commit bf74ad5bc41727d5f2f1c6bedb2c1fac394de731,
"Hold the device's parent's lock during probe and remove".

The fix (or workaround) adds a dummy driver to the hpsb_host device. Now
bus_rescan_devices_helper won't scan the host device anymore.  This
doesn't hurt since we have no drivers which will bind to these devices
and it is unlikely that there will ever be such a driver.  The dummy
driver is befittingly presented as a representation of ieee1394 itself.

Fixes: http://bugzilla.kernel.org/show_bug.cgi?id=6706

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
18 years agoieee1394: nodemgr: remove duplicate assignment
Stefan Richter [Sat, 18 Nov 2006 22:16:11 +0000 (23:16 +0100)]
ieee1394: nodemgr: remove duplicate assignment

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
18 years agosbp2: make 1bit bitfield unsigned
Luca Tettamanti [Wed, 15 Nov 2006 18:14:15 +0000 (19:14 +0100)]
sbp2: make 1bit bitfield unsigned

A signed single-bit bitfield doesn't make much sense. Make it unsigned.

Signed-off-by: Luca Tettamanti <kronos.it@gmail.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
18 years agoieee1394: schedule *_oui sysfs attributes for removal
Stefan Richter [Sun, 19 Nov 2006 22:04:31 +0000 (23:04 +0100)]
ieee1394: schedule *_oui sysfs attributes for removal

There is no manpower available to reform oui.db into a library for use
in more kernel subsystems.  The low ratio of usefulness to size and the
occasional need to update oui.db from IEEE's official list suggest to
drop oui.db.  I plan to make a userspace script available which
translates the remaining numeric sysfs attributes to names of
organizations.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
18 years agoieee1394: schedule unused symbol exports for removal
Stefan Richter [Sun, 19 Nov 2006 22:03:09 +0000 (23:03 +0100)]
ieee1394: schedule unused symbol exports for removal

This also means that former parts of ieee1394's API will be subject to
change or removal.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
18 years agoieee1394: dv1394: schedule for feature removal
Stefan Richter [Sun, 19 Nov 2006 23:07:26 +0000 (00:07 +0100)]
ieee1394: dv1394: schedule for feature removal

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
18 years agoieee1394: raw1394: defer feature removal of old isoch interface
Stefan Richter [Sun, 19 Nov 2006 23:05:05 +0000 (00:05 +0100)]
ieee1394: raw1394: defer feature removal of old isoch interface

Known to be affected:
 - libdc1394: prefers video1394 for now, old-style raw1394 support might
   be dropped eventually
 - OpenH323 PWLib, AVC video input module: uses libraw1394's old API

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
18 years agoieee1394: ohci1394: call PMac code in shutdown only for proper machines
Stefan Richter [Fri, 10 Nov 2006 23:26:24 +0000 (00:26 +0100)]
ieee1394: ohci1394: call PMac code in shutdown only for proper machines

There has been an if(...) missing, for ages.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
18 years agoieee1394: ohci1394: reformat PPC_PMAC platform code
Stefan Richter [Fri, 10 Nov 2006 23:23:50 +0000 (00:23 +0100)]
ieee1394: ohci1394: reformat PPC_PMAC platform code

Adjust whitespace and line lengths

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
18 years agoieee1394: ohci1394: add PPC_PMAC platform code to driver probe
Stefan Richter [Fri, 10 Nov 2006 23:22:35 +0000 (00:22 +0100)]
ieee1394: ohci1394: add PPC_PMAC platform code to driver probe

Fixes http://bugzilla.kernel.org/show_bug.cgi?id=7431
iBook G3 threw a machine check exception and put the display backlight
to full brightness after ohci1394 was unloaded and reloaded.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
18 years agoieee1394: sbp2: wrap two functions into one
Stefan Richter [Sat, 4 Nov 2006 08:55:33 +0000 (09:55 +0100)]
ieee1394: sbp2: wrap two functions into one

Move the body of a function into its only caller.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
18 years agoieee1394: sbp2: update comment on things to do
Stefan Richter [Thu, 2 Nov 2006 20:16:08 +0000 (21:16 +0100)]
ieee1394: sbp2: update comment on things to do

Some people actually look at those comments.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
18 years agoieee1394: sbp2: use list_move_tail()
Stefan Richter [Thu, 2 Nov 2006 20:16:08 +0000 (21:16 +0100)]
ieee1394: sbp2: use list_move_tail()

It's OK to reorder list_del() and sbp2util_free_command_dma() here.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
18 years agoieee1394: sbp2: more concise names for types and variables
Stefan Richter [Thu, 2 Nov 2006 20:16:08 +0000 (21:16 +0100)]
ieee1394: sbp2: more concise names for types and variables

"struct scsi_id_instance_data" represents a logical unit.
Rename it to "struct sbp2_lu", and "scsi_id" to "lu".
Rename some other variables too.
Wrap almost all lines after at most 80 columns.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
18 years agoieee1394: sbp2: remove unused struct members
Stefan Richter [Thu, 2 Nov 2006 20:16:08 +0000 (21:16 +0100)]
ieee1394: sbp2: remove unused struct members

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
18 years agoieee1394: sbp2: proper unit in module parameter description
Stefan Richter [Thu, 2 Nov 2006 20:16:08 +0000 (21:16 +0100)]
ieee1394: sbp2: proper unit in module parameter description

It's 2^20 bit/s, not 0.001 bit.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
18 years agoieee1394: sbp2: clean up sbp2_ namespace
Stefan Richter [Thu, 2 Nov 2006 20:16:08 +0000 (21:16 +0100)]
ieee1394: sbp2: clean up sbp2_ namespace

Prepend sbp2*_ to anything globally defined in sbp2.c except for some
macros.  Strip sbp2_ from names of struct members.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
18 years agoieee1394: sbp2: some conditions in queue_command are unlikely
Stefan Richter [Thu, 2 Nov 2006 20:16:08 +0000 (21:16 +0100)]
ieee1394: sbp2: some conditions in queue_command are unlikely

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
18 years ago[IA64] replace kmalloc+memset with kzalloc
Yan Burman [Mon, 4 Dec 2006 22:58:35 +0000 (14:58 -0800)]
[IA64] replace kmalloc+memset with kzalloc

Replace kmalloc+memset with kzalloc

Signed-off-by: Yan Burman <burman.yan@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Tony Luck <tony.luck@intel.com>
18 years ago[IA64] resolve name clash by renaming is_available_memory()
Christoph Lameter [Mon, 4 Dec 2006 22:58:35 +0000 (14:58 -0800)]
[IA64] resolve name clash by renaming is_available_memory()

There is a name clash with ia64 arch code in Andrew's tree. Rename
is_avialable_memory() to is_memory_available() to avoid the clash.

Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Tony Luck <tony.luck@intel.com>
18 years agoieee1394: sbp2: remove superfluous comments
Stefan Richter [Thu, 2 Nov 2006 20:16:08 +0000 (21:16 +0100)]
ieee1394: sbp2: remove superfluous comments

And update and reformat remaining comments.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
18 years agoieee1394: sbp2: delayed_work -> work_struct
Stefan Richter [Thu, 7 Dec 2006 21:40:33 +0000 (22:40 +0100)]
ieee1394: sbp2: delayed_work -> work_struct

This work is not delayed.

Also bring the code format in a state which reduces my work to merge
pending sbp2 patchs.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
18 years agoMerge branch 'master' of /home/trondmy/kernel/linux-2.6/ into merge_linus
Trond Myklebust [Thu, 7 Dec 2006 21:35:17 +0000 (16:35 -0500)]
Merge branch 'master' of /home/trondmy/kernel/linux-2.6/ into merge_linus

18 years ago[IA64] Need export for csum_ipv6_magic
Tony Luck [Thu, 7 Dec 2006 21:18:57 +0000 (13:18 -0800)]
[IA64] Need export for csum_ipv6_magic

Now we have our own highly optimized assembly code version of
this routine (Thanks Ken!) we should export it so that it can
be used.

Signed-off-by: Tony Luck <tony.luck@intel.com>
18 years agoMerge branch 'master' of /home/trondmy/kernel/linux-2.6/ into merge_linus
Trond Myklebust [Thu, 7 Dec 2006 20:48:15 +0000 (15:48 -0500)]
Merge branch 'master' of /home/trondmy/kernel/linux-2.6/ into merge_linus

Conflicts:

include/linux/sunrpc/xprt.h
net/sunrpc/xprtsock.c
Fix up conflicts with the workqueue changes.

18 years agoieee1394: sbp2: coding style of some macros
Stefan Richter [Thu, 2 Nov 2006 20:16:08 +0000 (21:16 +0100)]
ieee1394: sbp2: coding style of some macros

Adjust parentheses, indentation, line lengths.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
18 years agoieee1394: sbp2: remove debug macros
Stefan Richter [Thu, 2 Nov 2006 20:16:08 +0000 (21:16 +0100)]
ieee1394: sbp2: remove debug macros

No need to keep them in released sources.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
18 years agoieee1394: sbp2: consolidate log levels
Stefan Richter [Thu, 2 Nov 2006 20:16:08 +0000 (21:16 +0100)]
ieee1394: sbp2: consolidate log levels

Replace some calls to SBP2_ERR and SBP2_WARN by SBP2_INFO.
Remove logging macros SBP2_NOTICE and SBP2_WARN.
Remove direct usage of HPSB_ logging macros.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
18 years agoieee1394: sbp2: remove duplicate code
Stefan Richter [Thu, 2 Nov 2006 20:16:08 +0000 (21:16 +0100)]
ieee1394: sbp2: remove duplicate code

The same case is handled further below in sbp2scsi_complete_command.
Note, the second version behaves slightly different but looks
preferable.  It's an extremely unlikely case by the way.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
18 years agoieee1394: sbp2: remove dead code
Stefan Richter [Thu, 2 Nov 2006 20:16:08 +0000 (21:16 +0100)]
ieee1394: sbp2: remove dead code

This has been within #if 0 for a long time and is wrong anyway.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
18 years agoieee1394: sbp2: clean up function declarations
Stefan Richter [Thu, 2 Nov 2006 20:16:08 +0000 (21:16 +0100)]
ieee1394: sbp2: clean up function declarations

Remove unnecessary function prototypes.
Remove variable names from function prototypes.
Move declarations from sbp2.h to sbp2.c.
Move definitions of driver templates together near the top of sbp2.c.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
18 years agoieee1394: sbp2: remove irritating log message
Stefan Richter [Thu, 2 Nov 2006 20:16:08 +0000 (21:16 +0100)]
ieee1394: sbp2: remove irritating log message

The queue depth can be read from /sys/bus/scsi/devices/*/queue_depth,
so don't log it.  And the hint about speed improvements is misleading,
at least under current kernels.  If serialization is switched off, read
performance is typically increased by less than 10%.  (I did not test
write performance recently.)  On the other hand, serialize_io=0 is not
yet safe due to some implementation issues that are not trivial to fix.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
18 years agoohci1394: shortcut irq printing
Alexey Dobriyan [Mon, 30 Oct 2006 12:51:52 +0000 (15:51 +0300)]
ohci1394: shortcut irq printing

To print irq number no need to transform to string using %d, then print
using %s. Just use %d.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
18 years agoieee1394: nodemgr: take it easy if bus_rescan_devices fails
Stefan Richter [Sun, 29 Oct 2006 22:09:11 +0000 (23:09 +0100)]
ieee1394: nodemgr: take it easy if bus_rescan_devices fails

This happens.  No need to log a BUG trace.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
18 years agodrivers/ieee1394/*: use kmemdup()
Eric Sesterhenn [Sun, 29 Oct 2006 20:13:40 +0000 (23:13 +0300)]
drivers/ieee1394/*: use kmemdup()

Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de>
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
18 years agoieee1394: ohci1394: proper log messages in suspend and resume
Stefan Richter [Sun, 29 Oct 2006 18:58:25 +0000 (19:58 +0100)]
ieee1394: ohci1394: proper log messages in suspend and resume

 - correct thinko in one of my last commits: cannot use PRINT macro with
   ohci == NULL
 - add log messages on ohci == NULL and on pci_enable_device != 0
 - update log macros from patch "revert fail on error in suspend" to use
   PRINT and DBGMSG where possible

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
18 years agoieee1394: ohci1394: revert fail on error in suspend
Stefan Richter [Sun, 29 Oct 2006 18:52:49 +0000 (19:52 +0100)]
ieee1394: ohci1394: revert fail on error in suspend

Some errors during preparation for suspended state can be skipped with a
warning instead of a failure of the whole suspend transition, notably an
error in pci_set_power_state.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
18 years agoieee1394: only build OUI database files if config enabled
Randy Dunlap [Tue, 24 Oct 2006 18:19:11 +0000 (11:19 -0700)]
ieee1394: only build OUI database files if config enabled

Only build IEEE1394 OUI database files if the config option is enabled.

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
18 years agoieee1394: fix printk format warning
Randy Dunlap [Tue, 24 Oct 2006 04:44:36 +0000 (21:44 -0700)]
ieee1394: fix printk format warning

Fix printk format warning:
drivers/ieee1394/nodemgr.c:364: warning: long long unsigned int format, u64 arg (arg 3)

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
18 years agoieee1394: nodemgr: revise semaphore protection of driver core data
Stefan Richter [Sun, 22 Oct 2006 14:16:27 +0000 (16:16 +0200)]
ieee1394: nodemgr: revise semaphore protection of driver core data

 - The list "struct class.children" is supposed to be protected by
   class.sem, not by class.subsys.rwsem.

 - nodemgr_remove_uds() iterated over nodemgr_ud_class.children without
   proper protection.  This was never observed as a bug since the code
   is usually only accessed by knodemgrd.  All knodemgrds are currently
   globally serialized.  But userspace can trigger this code too by
   writing to /sys/bus/ieee1394/destroy_node.

 - Clean up access to the FireWire bus type's subsys.rwsem:  Access it
   uniformly via ieee1394_bus_type.  Shrink rwsem protected regions
   where possible.  Expand them where necessary.  The latter wasn't a
   problem so far because knodemgr is globally serialized.

This should harden the interaction of ieee1394 with sysfs and lay ground
for deserialized operation of multiple knodemgrds and for implementation
of subthreads for parallelized scanning and probing.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
18 years agoieee1394: nodemgr: reflect which return values are errors
Stefan Richter [Fri, 20 Oct 2006 23:23:56 +0000 (01:23 +0200)]
ieee1394: nodemgr: reflect which return values are errors

Give better names to local variables.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
18 years agoieee1394: nodemgr: small fix after sysfs errors patch
Stefan Richter [Fri, 20 Oct 2006 23:22:36 +0000 (01:22 +0200)]
ieee1394: nodemgr: small fix after sysfs errors patch

One hunk in "ieee1394: handle sysfs errors" was wrong.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
18 years agodv1394: remove BKL contention
Stefan Richter [Fri, 20 Oct 2006 19:01:58 +0000 (21:01 +0200)]
dv1394: remove BKL contention

Purges the one remaining call to lock_kernel() from the 1394 subsystem.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
18 years agovideo1394: remove BKL contention
Daniel Drake [Fri, 20 Oct 2006 13:56:01 +0000 (14:56 +0100)]
video1394: remove BKL contention

video1394 does not need to take the BKL. The data structures shared between
file_operations and interrupts are already protected through context-specific
spinlocks.

The only other danger is video1394_release() being called during another
operation, however this cannot happen because release is only ever invoked
when the last thread has closed the fd.

Signed-off-by: Daniel Drake <ddrake@brontes3d.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
18 years agovideo1394: small optimizations to frame retrieval codepath
Daniel Drake [Wed, 18 Oct 2006 20:37:14 +0000 (21:37 +0100)]
video1394: small optimizations to frame retrieval codepath

Add some GCC branch prediction optimizations to unlikely error/safety
conditions in the ioctl handling code commonly called during an application's
capture loop.

Signed-off-by: Daniel Drake <ddrake@brontes3d.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
18 years agoieee1394: handle sysfs errors
Stefan Richter [Tue, 10 Oct 2006 19:19:21 +0000 (21:19 +0200)]
ieee1394: handle sysfs errors

Handle driver core errors with as much care as appropriate.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
18 years agoieee1394: coding style in hosts.c
Stefan Richter [Tue, 10 Oct 2006 19:12:39 +0000 (21:12 +0200)]
ieee1394: coding style in hosts.c

Some 80-columns pedantry, and touch up of a // comment.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
18 years agoieee1394: lock smaller region by host_num_alloc mutex
Stefan Richter [Tue, 10 Oct 2006 19:11:43 +0000 (21:11 +0200)]
ieee1394: lock smaller region by host_num_alloc mutex

We need the mutex only around the iteration over existing hosts.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
18 years agoieee1394: usecs_to_jiffies takes unsigned int argument
Stefan Richter [Sun, 8 Oct 2006 09:45:13 +0000 (11:45 +0200)]
ieee1394: usecs_to_jiffies takes unsigned int argument

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
18 years agoieee1394: ohci1394: suspend/resume cosmetics
Stefan Richter [Sun, 24 Sep 2006 09:01:00 +0000 (11:01 +0200)]
ieee1394: ohci1394: suspend/resume cosmetics

Reorder the definitions of ohci1394_pci_suspend and _resume.  Remove
redundant comments.  Beautify return statements.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
18 years agoohci1394: steps to implement suspend/resume
Bernhard Kaindl [Wed, 6 Sep 2006 12:58:30 +0000 (14:58 +0200)]
ohci1394: steps to implement suspend/resume

I did a quick shot on what I described and the appended patch
does the first thing needed for working suspend/resume
in ohci1394 which is HW de- and re-initialisation.

It works with suspend2disk on my Ricoh R5C552 IEEE 1394 Controller
with the 2.6.17 kernel to the extent that if I call dvgrab --interactive
after suspend2disk without unloading ohci1394, it does not lock up
dvgrab with 100% CPU but properly connects to the camera, given
that I first unplug and plug the camera after coming back from
suspend.

I guess that could be fixed by forcing a bus reset in the resume
function.

I cannot test suspend to RAM here at the moment and should
follow the guidelines in Documentation/power/pci.txt also,
so this is rather a quick report than a finished patch and
there are some rough edges:

However, with this patch, I have to unload at least some in-kernel
users of ohci1394 like dv1394 or video1394 before suspending.

Not doing that caused an Oops and a bad tasklet error, probably from
not handling ISO tasklets during suspend/resume properly.

Maybe these can be temporarily cleared or unregistered and
re-registered for suspend/resume with help from the other
layers or from the highlevel 1394 core, but I do not really
know what these do.

But this patch provides a useful base to start from and is
already of much help for people which do not need dv1394
and video1394 or can unload them at least during suspend.

I cannot test function with sbp2 at the moment, but raw1394
seems to work fine.

Signed-off-by: Bernhard Kaindl <bk@fsfe.org>
Update 1: merge with previous two ohci1394 suspend/resume patches
Update 2: version for application on top of Linux 2.6.19-rc4

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
18 years agoieee1394: raw1394: add comments on lock usage
Stefan Richter [Thu, 14 Sep 2006 20:06:48 +0000 (22:06 +0200)]
ieee1394: raw1394: add comments on lock usage

Add a who-is-who about some locks and list heads in raw1394's struct
definitions.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
18 years agoieee1394: sbp2: slightly reorder sbp2scsi_abort
Stefan Richter [Mon, 11 Sep 2006 18:17:14 +0000 (20:17 +0200)]
ieee1394: sbp2: slightly reorder sbp2scsi_abort

Put the target's fetch agent into reset state before the underlying ORB
DMA is unmapped and the ->done handler is called.  It is highly unlikely
but the target could access that ORB right before sbp2 sends the reset
request.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
18 years agoieee1394: remove unused struct member from highlevel API
Stefan Richter [Thu, 7 Sep 2006 23:30:04 +0000 (01:30 +0200)]
ieee1394: remove unused struct member from highlevel API

struct hpsb_highlevel's struct module *owner is neither used by the IEEE
1394 core nor set by any of the in-tree drivers or the two out-of-tree
highlevel drivers I know about (dfg1394, mem1394) --- nor is this member
documented.  An unscheduled removal seems acceptable.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
18 years ago[IA64] Fix DISCONTIGMEM without VIRTUAL_MEM_MAP
Matthew Wilcox [Thu, 16 Nov 2006 20:40:53 +0000 (13:40 -0700)]
[IA64] Fix DISCONTIGMEM without VIRTUAL_MEM_MAP

make allnoconfig currently fails to build because it selects DISCONTIGMEM
without VIRTUAL_MEM_MAP.  I see no particular reason this combination
ought to fail, so I fixed it by:

 - Including memory_model.h in all circumstances, except when both
   DISCONTIGMEM and VIRTUAL_MEM_MAP are enabled.
 - Defining ia64_pfn_valid() to 1 unless VIRTUAL_MEM_MAP is enabled

Signed-off-by: Matthew Wilcox <matthew@wil.cx>
Signed-off-by: Tony Luck <tony.luck@intel.com>
18 years ago[PATCH] Add support for type argument in PAL_GET_PSTATE
Venkatesh Pallipadi [Fri, 1 Dec 2006 23:28:14 +0000 (15:28 -0800)]
[PATCH] Add support for type argument in PAL_GET_PSTATE

PAL_GET_PSTATE accepts a type argument to return different kinds of
frequency information.
Refer: Intel Itanium®Architecture Software Developer's Manual -
Volume 2: System Architecture, Revision 2.2
(http://developer.intel.com/design/itanium/manuals/245318.htm)

Add the support for type argument and use Instantaneous frequency
in the acpi driver.

Also fix a bug, where in return value of PAL_GET_PSTATE was getting compared
with 'control' bits instead of 'status' bits.

Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
18 years ago[IA64] tidy up return value of ip_fast_csum
Chen, Kenneth W [Thu, 9 Nov 2006 00:29:25 +0000 (16:29 -0800)]
[IA64] tidy up return value of ip_fast_csum

While working on implementing csum_ipv6_magic, I noticed that current
version of ip_fast_csum will potentially return bits above "unsigned
short" as 1.  While no harm is done right now because all call sites
will chop off the upper bits when it uses the return value.  However,
this is still dangerous and buggy.  Here is a patch to enforce that the
function really returns unsigned short in the native register format.

The fix is free as there are plenty open slot to add one more asm instruction.

Signed-off-by: Ken Chen <kenneth.w.chen@intel.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
18 years ago[IA64] implement csum_ipv6_magic for ia64.
Chen, Kenneth W [Fri, 10 Nov 2006 21:17:50 +0000 (13:17 -0800)]
[IA64] implement csum_ipv6_magic for ia64.

The asm version is 4.4 times faster than the generic C version and
10X smaller in code size.

Signed-off-by: Ken Chen <kenneth.w.chen@intel.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
18 years ago[IA64] More Itanium PAL spec updates
Russ Anderson [Mon, 6 Nov 2006 22:45:18 +0000 (16:45 -0600)]
[IA64] More Itanium PAL spec updates

Additional updates to conform with Rev 2.2 of Volume 2 of "Intel
Itanium Architecture Software Developer's Manual" (January 2006).

Add pal_bus_features_s bits 52 & 53 (page 2:347)
Add pal_vm_info_2_s field max_purges (page 2:2:451)
Add PAL_GET_HW_POLICY call (page 2:381)
Add PAL_SET_HW_POLICY call (page 2:439)

Sample output before:
---------------------------------------------------------------------
cobra:~ # cat /proc/pal/cpu0/vm_info
Physical Address Space         : 50 bits
Virtual Address Space          : 61 bits
Protection Key Registers(PKR)  : 16
Implemented bits in PKR.key    : 24
Hash Tag ID                    : 0x2
Size of RR.rid                 : 24
Supported memory attributes    : WB, UC, UCE, WC, NaTPage
---------------------------------------------------------------------

Sample output after:
---------------------------------------------------------------------
cobra:~ # cat /proc/pal/cpu0/vm_info
Physical Address Space         : 50 bits
Virtual Address Space          : 61 bits
Protection Key Registers(PKR)  : 16
Implemented bits in PKR.key    : 24
Hash Tag ID                    : 0x2
Max Purges                     : 1
Size of RR.rid                 : 24
Supported memory attributes    : WB, UC, UCE, WC, NaTPage
---------------------------------------------------------------------

Signed-off-by: Russ Anderson (rja@sgi.com)
Signed-off-by: Tony Luck <tony.luck@intel.com>
18 years ago[IA64] Update processor_info features
Russ Anderson [Thu, 7 Dec 2006 19:06:35 +0000 (11:06 -0800)]
[IA64] Update processor_info features

Add the printing of additional processor features to proc_features.

Based on Rev 2.2 of Volume 2 of "Intel Itanium Architecture Software
Developer's Manual" (January 2006) fields (pages 2:430-2:432).
This patch gets the features back in sync with the spec.

Sample output before:
--------------------------------------------------------------
cobra:~ # cat /proc/pal/cpu0/processor_info
XIP,XPSR,XFS implemented                 : On NoCtrl
XR1-XR3 implemented                      : On NoCtrl
Disable dynamic predicate prediction     : NotImpl
Disable processor physical number        : NotImpl
Disable dynamic data cache prefetch      : NotImpl
Disable dynamic inst cache prefetch      : NotImpl
Disable dynamic branch prediction        : NotImpl
Disable BINIT on processor time-out      : On Ctrl
Disable dynamic power management (DPM)   : NotImpl
Disable coherency                        : NotImpl
Disable cache                            : NotImpl
Enable CMCI promotion                    : Off Ctrl
Enable MCA to BINIT promotion            : Off Ctrl
Enable MCA promotion                     : NotImpl
Enable BERR promotion                    : NotImpl
cobra:~ #
--------------------------------------------------------------

Sample output after:
--------------------------------------------------------------
cobra:~ # cat /proc/pal/cpu0/processor_info
Unimplemented instruction address fault  : NotImpl
INIT, PMI, and LINT pins                 : NotImpl
Simple unimplimented instr addresses     : On NoCtrl
Variable P-state performance             : NotImpl
Virtual machine features implemeted      : On NoCtrl
XIP,XPSR,XFS implemented                 : On NoCtrl
XR1-XR3 implemented                      : On NoCtrl
Disable dynamic predicate prediction     : NotImpl
Disable processor physical number        : NotImpl
Disable dynamic data cache prefetch      : NotImpl
Disable dynamic inst cache prefetch      : NotImpl
Disable dynamic branch prediction        : NotImpl
Disable P-states                         : Off Ctrl
Enable MCA on Data Poisoning             : Off Ctrl
Enable vmsw instruction                  : On Ctrl
Enable extern environmental notification : NotImpl
Disable BINIT on processor time-out      : On Ctrl
Disable dynamic power management (DPM)   : NotImpl
Disable coherency                        : NotImpl
Disable cache                            : NotImpl
Enable CMCI promotion                    : Off Ctrl
Enable MCA to BINIT promotion            : Off Ctrl
Enable MCA promotion                     : NotImpl
Enable BERR promotion                    : NotImpl
cobra:~ #
--------------------------------------------------------------

Signed-off-by: Russ Anderson (rja@sgi.com)
Signed-off-by: Tony Luck <tony.luck@intel.com>
18 years ago[IA64] Add se bit to Processor State Parameter structure
Russ Anderson [Thu, 26 Oct 2006 16:53:17 +0000 (11:53 -0500)]
[IA64] Add se bit to Processor State Parameter structure

Rev 2.2 of Volume 2 of "Intel Itanium Architecture Software Developer's
Manual" (January 2006) adds a se bit to the Processor State Parameter
fields (pages 2:299).  This patch gets the structs back in sync
with the spec.

Signed-off-by: Russ Anderson (rja@sgi.com)
Signed-off-by: Tony Luck <tony.luck@intel.com>
18 years ago[IA64] Add dp bit to cache and bus check structs
Russ Anderson [Wed, 25 Oct 2006 19:18:27 +0000 (14:18 -0500)]
[IA64] Add dp bit to cache and bus check structs

Rev 2.2 of Volume 2 of "Intel Itanium Architecture Software Developer's
Manual" (January 2006) adds a dp bit to the cache_check and bus_check
fields (pages 2:401-2:404).  This patch gets the structs back in sync
with the spec.

Signed-off-by: Russ Anderson (rja@sgi.com)
Signed-off-by: Tony Luck <tony.luck@intel.com>
18 years ago[IA64] SN: Correctly update smp_affinty mask
John Keller [Mon, 6 Nov 2006 20:10:50 +0000 (14:10 -0600)]
[IA64] SN: Correctly update smp_affinty mask

On Altix systems, the /proc/irq/nn/smp_affinity mask is not being setup
at device iniitalization, or updated after an interrupt redirection.
This patch resolves those issues.

Signed-off-by: John Keller <jpk@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>