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* Merge branch 'fixes-2.6.38' of ↵Linus Torvalds2011-01-21
|\ | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu * 'fixes-2.6.38' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu: x86,percpu: Move out of place 64 bit ops into X86_64 section
| * x86,percpu: Move out of place 64 bit ops into X86_64 sectionChristoph Lameter2011-01-11
| | | | | | | | | | | | | | | | Some operations that operate on 64 bit operands are defined for 32 bit. Move them into the correct section. Signed-off-by: Christoph Lameter <cl@linux.com> Signed-off-by: Tejun Heo <tj@kernel.org>
* | Merge branch 'fixes-2.6.38' of ↵Linus Torvalds2011-01-21
|\ \ | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq * 'fixes-2.6.38' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq: workqueue: note the nested NOT_RUNNING test in worker_clr_flags() isn't a noop workqueue: relax lockdep annotation on flush_work()
| * | workqueue: note the nested NOT_RUNNING test in worker_clr_flags() isn't a noopTejun Heo2011-01-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The nested NOT_RUNNING test in worker_clr_flags() is slightly misleading in that if NOT_RUNNING were a single flag the nested test would be always %true and thus noop. Add a comment noting that the test isn't a noop. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Hillf Danton <dhillf@gmail.com> Cc: Andrew Morton <akpm@linux-foundation.org>
| * | workqueue: relax lockdep annotation on flush_work()Tejun Heo2011-01-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently, the lockdep annotation in flush_work() requires exclusive access on the workqueue the target work is queued on and triggers warning if a work is trying to flush another work on the same workqueue; however, this is no longer true as workqueues can now execute multiple works concurrently. This patch adds lock_map_acquire_read() and make process_one_work() hold read access to the workqueue while executing a work and start_flush_work() check for write access if concurrnecy level is one or the workqueue has a rescuer (as only one execution resource - the rescuer - is guaranteed to be available under memory pressure), and read access if higher. This better represents what's going on and removes spurious lockdep warnings which are triggered by fake dependency chain created through flush_work(). * Peter pointed out that flushing another work from a WQ_MEM_RECLAIM wq breaks forward progress guarantee under memory pressure. Condition check accordingly updated. Signed-off-by: Tejun Heo <tj@kernel.org> Reported-by: "Rafael J. Wysocki" <rjw@sisk.pl> Tested-by: "Rafael J. Wysocki" <rjw@sisk.pl> Cc: Peter Zijlstra <peterz@infradead.org> Cc: stable@kernel.org
* | | Merge branch 'irq-cleanup-for-linus' of ↵Linus Torvalds2011-01-21
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'irq-cleanup-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (37 commits) um: Use generic irq Kconfig tile: Use generic irq Kconfig sparc: Use generic irq Kconfig score: Use generic irq Kconfig powerpc: Use generic irq Kconfig parisc: Use generic irq Kconfig mn10300: Use generic irq Kconfig microblaze: Use generic irq Kconfig m68knommu: Use generic irq Kconfig ia64: Use generic irq Kconfig frv: Use generic irq Kconfig blackfin: Use generic irq Kconfig alpha: Use generic irq Kconfig genirq: Remove __do_IRQ m32r: Convert to generic irq Kconfig m32r: Convert usrv platform irq handling m32r: Convert opsput_lcdpld irq chip m32r: Convert opsput lanpld irq chip m32r: Convert opsput pld irq chip m32r: Convert opsput irq chip ...
| * | | um: Use generic irq KconfigThomas Gleixner2011-01-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | No functional change. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Jeff Dike <jdike@addtoit.com>
| * | | tile: Use generic irq KconfigThomas Gleixner2011-01-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | No functional change. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Chris Metcalf <cmetcalf@tilera.com>
| * | | sparc: Use generic irq KconfigThomas Gleixner2011-01-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | No functional change. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: "David S. Miller" <davem@davemloft.net>
| * | | score: Use generic irq KconfigThomas Gleixner2011-01-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | No functional change Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Chen Liqin <liqin.chen@sunplusct.com>
| * | | powerpc: Use generic irq KconfigThomas Gleixner2011-01-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | No functional change. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | | parisc: Use generic irq KconfigThomas Gleixner2011-01-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | No functional change. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Kyle McMartin <kyle@mcmartin.ca> Acked-by: James Bottomley <James.Bottomley@HansenPartnership.com>
| * | | mn10300: Use generic irq KconfigThomas Gleixner2011-01-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | No functional change. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: David Howells <dhowells@redhat.com>
| * | | microblaze: Use generic irq KconfigThomas Gleixner2011-01-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | No functional change. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Michal Simek <monstr@monstr.eu>
| * | | m68knommu: Use generic irq KconfigThomas Gleixner2011-01-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | No functional change. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Greg Ungerer <gerg@uclinux.org>
| * | | ia64: Use generic irq KconfigThomas Gleixner2011-01-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | No functional change. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Tony Luck <tony.luck@intel.com>
| * | | frv: Use generic irq KconfigThomas Gleixner2011-01-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | No functional change. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: David Howells <dhowells@redhat.com>
| * | | blackfin: Use generic irq KconfigThomas Gleixner2011-01-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | No functional change. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Mike Frysinger <vapier@gentoo.org>
| * | | alpha: Use generic irq KconfigThomas Gleixner2011-01-21
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Richard Henderson <rth@twiddle.net>
| * | | genirq: Remove __do_IRQThomas Gleixner2011-01-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | All architectures are finally converted. Remove the cruft. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Richard Henderson <rth@twiddle.net> Cc: Mike Frysinger <vapier@gentoo.org> Cc: David Howells <dhowells@redhat.com> Cc: Tony Luck <tony.luck@intel.com> Cc: Greg Ungerer <gerg@uclinux.org> Cc: Michal Simek <monstr@monstr.eu> Acked-by: David Howells <dhowells@redhat.com> Cc: Kyle McMartin <kyle@mcmartin.ca> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Chen Liqin <liqin.chen@sunplusct.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Chris Metcalf <cmetcalf@tilera.com> Cc: Jeff Dike <jdike@addtoit.com>
| * | | m32r: Convert to generic irq KconfigThomas Gleixner2011-01-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use the generic irq Kconfig. Select GENERIC_HARDIRQS_NO_DEPRECATED as we have converted all irq_chip functions. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Hirokazu Takata <takata@linux-m32r.org> Cc: Paul Mundt <lethal@linux-sh.org>
| * | | m32r: Convert usrv platform irq handlingThomas Gleixner2011-01-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Convert the irq chips to the new functions and use proper flow handlers. handle_level_irq is appropriate. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Hirokazu Takata <takata@linux-m32r.org> Cc: Paul Mundt <lethal@linux-sh.org>
| * | | m32r: Convert opsput_lcdpld irq chipThomas Gleixner2011-01-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Convert the irq chips to the new functions and use proper flow handlers. handle_level_irq is appropriate. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Hirokazu Takata <takata@linux-m32r.org> Cc: Paul Mundt <lethal@linux-sh.org>
| * | | m32r: Convert opsput lanpld irq chipThomas Gleixner2011-01-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Convert the irq chips to the new functions and use proper flow handlers. handle_level_irq is appropriate. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Hirokazu Takata <takata@linux-m32r.org> Cc: Paul Mundt <lethal@linux-sh.org>
| * | | m32r: Convert opsput pld irq chipThomas Gleixner2011-01-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Convert the irq chips to the new functions and use proper flow handlers. handle_level_irq is appropriate. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Hirokazu Takata <takata@linux-m32r.org> Cc: Paul Mundt <lethal@linux-sh.org>
| * | | m32r: Convert opsput irq chipThomas Gleixner2011-01-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Convert the irq chips to the new functions and use proper flow handlers. handle_level_irq is appropriate. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Hirokazu Takata <takata@linux-m32r.org> Cc: Paul Mundt <lethal@linux-sh.org>
| * | | m32r: Convert oaks32r irq chipsThomas Gleixner2011-01-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Convert the irq chips to the new functions and use proper flow handlers. handle_level_irq is appropriate. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Hirokazu Takata <takata@linux-m32r.org> Cc: Paul Mundt <lethal@linux-sh.org>
| * | | m32r: Convert mappi3 irq chipThomas Gleixner2011-01-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Convert the irq chips to the new functions and use proper flow handlers. handle_level_irq is appropriate. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Hirokazu Takata <takata@linux-m32r.org> Cc: Paul Mundt <lethal@linux-sh.org>
| * | | m32r: Convert mappi2 irq chipThomas Gleixner2011-01-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Convert the irq chips to the new functions and use proper flow handlers. handle_level_irq is appropriate. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Hirokazu Takata <takata@linux-m32r.org> Cc: Paul Mundt <lethal@linux-sh.org>
| * | | m32r: Convert mappi irq chipsThomas Gleixner2011-01-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Convert the irq chips to the new functions and use proper flow handlers. handle_level_irq is appropriate. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Hirokazu Takata <takata@linux-m32r.org> Cc: Paul Mundt <lethal@linux-sh.org>
| * | | m32r: Convert m32700ut lcdpld irq chipThomas Gleixner2011-01-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Convert the irq chip to the new functions and use proper flow handlers. handle_level_irq is appropriate. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Hirokazu Takata <takata@linux-m32r.org> Cc: Paul Mundt <lethal@linux-sh.org>
| * | | m32r: Convert m32700ut lanpld irq chipThomas Gleixner2011-01-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Convert the irq chips to the new functions and use proper flow handlers. handle_level_irq is appropriate. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Hirokazu Takata <takata@linux-m32r.org> Cc: Paul Mundt <lethal@linux-sh.org>
| * | | m32r: Convert m32700ut pld irq chipThomas Gleixner2011-01-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Convert the irq chips to the new functions and use proper flow handlers. handle_level_irq is appropriate. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Hirokazu Takata <takata@linux-m32r.org> Cc: Paul Mundt <lethal@linux-sh.org>
| * | | m32r: Convert m32104ut irq chipThomas Gleixner2011-01-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Convert the irq chips to the new functions and use proper flow handlers. handle_level_irq is appropriate. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Hirokazu Takata <takata@linux-m32r.org> Cc: Paul Mundt <lethal@linux-sh.org>
| * | | m32r: Convert m32104ut irq handlingThomas Gleixner2011-01-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Convert the irq chips to the new functions and use proper flow handlers. handle_level_irq is appropriate. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Hirokazu Takata <takata@linux-m32r.org> Cc: Paul Mundt <lethal@linux-sh.org>
| * | | m32r: Cleanup direct irq_desc accessThomas Gleixner2011-01-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The irq descriptors are already initialized by the generic code. Remove the redundant init code and set the irq chip with the proper accessor function. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Hirokazu Takata <takata@linux-m32r.org> Cc: Paul Mundt <lethal@linux-sh.org>
| * | | cris: Use generic irq KconfigThomas Gleixner2011-01-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use the generic irq Kconfig. Select GENERIC_HARDIRQS_NO_DEPRECATED as we have converted all irq_chip functions. Fix the fallout in show_interrupts(). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Mikael Starvik <starvik@axis.com>
| * | | cris: Convert V32 interrupt handlingThomas Gleixner2011-01-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Convert the irq chip functions and install handle_simple_irq for each interrupt to get rid of __do_IRQ() Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Mikael Starvik <starvik@axis.com>
| * | | cris: Convert V10 interrupt handlingThomas Gleixner2011-01-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Convert the irq_chip functions and install handle_simple_irq for each interrupt. This converts V10 to the flow handling and lets us remove __do_IRQ(). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Mikael Starvik <starvik@axis.com>
| * | | cris: Use irq handling wrapperThomas Gleixner2011-01-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use the wrapper around __do_IRQ() so we can convert V10 and V32 seperately. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Mikael Starvik <starvik@axis.com>
| * | | h8300: Use generic irq KconfigThomas Gleixner2011-01-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Switch to the generic irq Kconfig. h8300 has all irq chips converted to the new functions, so select the GENERIC_HARDIRQS_NO_DEPRECATED switch as well. Fixup the resulting fallout in show_interrupts(). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: Paul Mundt <lethal@linux-sh.org>
| * | | h8300: Convert interrupt handling to flow handlerThomas Gleixner2011-01-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | __do_IRQ is deprecated so h8300 needs to be converted to proper flow handling. The irq chip is simple and does not required any mask/ack/eoi functions, so we can use handle_simple_irq. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: Paul Mundt <lethal@linux-sh.org>
| * | | h8300: Convert to new irq_chip functionsThomas Gleixner2011-01-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | No functional change, just straight forward conversion. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: Paul Mundt <lethal@linux-sh.org>
* | | | Merge branch 'stable/bug-fixes-rc1' of ↵Linus Torvalds2011-01-21
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen * 'stable/bug-fixes-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen: xen: p2m: correctly initialize partial p2m leaf xen: fix non-ANSI function warning in irq.c
| * | | | xen: p2m: correctly initialize partial p2m leafStefan Bader2011-01-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | After changing the p2m mapping to a tree by commit 58e05027b530ff081ecea68e38de8d59db8f87e0 xen: convert p2m to a 3 level tree and trying to boot a DomU with 615MB of memory, the following crash was observed in the dump: kernel direct mapping tables up to 26f00000 @ 1ec4000-1fff000 BUG: unable to handle kernel NULL pointer dereference at (null) IP: [<c0107397>] xen_set_pte+0x27/0x60 *pdpt = 0000000000000000 *pde = 0000000000000000 Adding further debug statements showed that when trying to set up pfn=0x26700 the returned mapping was invalid. pfn=0x266ff calling set_pte(0xc1fe77f8, 0x6b3003) pfn=0x26700 calling set_pte(0xc1fe7800, 0x3) Although the last_pfn obtained from the startup info is 0x26700, which should in turn not be hit, the additional 8MB which are added as extra memory normally seem to be ok. This lead to looking into the initial p2m tree construction, which uses the smaller value and assuming that there is other code handling the extra memory. When the p2m tree is set up, the leaves are directly pointed to the array which the domain builder set up. But if the mapping is not on a boundary that fits into one p2m page, this will result in the last leaf being only partially valid. And as the invalid entries are not initialized in that case, things go badly wrong. I am trying to fix that by checking whether the current leaf is a complete map and if not, allocate a completely new page and copy only the valid pointers there. This may not be the most efficient or elegant solution, but at least it seems to allow me booting DomUs with memory assignments all over the range. BugLink: http://bugs.launchpad.net/bugs/686692 [v2: Redid a bit of commit wording and fixed a compile warning] Signed-off-by: Stefan Bader <stefan.bader@canonical.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
| * | | | xen: fix non-ANSI function warning in irq.cRandy Dunlap2011-01-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix sparse warning for non-ANSI function declaration: arch/x86/xen/irq.c:129:30: warning: non-ANSI function declaration of function 'xen_init_irq_ops' Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Cc: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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*-. \ \ \ \ Merge branches 'fixes' and 'fwnet' of ↵Linus Torvalds2011-01-21
|\ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6 * 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6: firewire: core: fix unstable I/O with Canon camcorder * 'fwnet' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6: firewire: net: is not experimental anymore firewire: net: invalidate ARP entries of removed nodes
| | * | | | | firewire: net: is not experimental anymoreStefan Richter2011-01-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | thanks to Clemens' and Maxim's fixes to firewire-ohci and -net in the last two kernel releases. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
| | * | | | | firewire: net: invalidate ARP entries of removed nodesMaxim Levitsky2011-01-20
| | |/ / / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This makes it possible to resume communication with a node that dropped off the bus for a brief period. Otherwise communication will only be possible after ARP cache entry timeouts. Signed-off-by: Maxim Levitsky <maximlevitsky@gmail.com> Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> (rebased)
| * | | | | firewire: core: fix unstable I/O with Canon camcorderStefan Richter2011-01-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Regression since commit 10389536742c, "firewire: core: check for 1394a compliant IRM, fix inaccessibility of Sony camcorder": The camcorder Canon MV5i generates lots of bus resets when asynchronous requests are sent to it (e.g. Config ROM read requests or FCP Command write requests) if the camcorder is not root node. This causes drop- outs in videos or makes the camcorder entirely inaccessible. https://bugzilla.redhat.com/show_bug.cgi?id=633260 Fix this by allowing any Canon device, even if it is a pre-1394a IRM like MV5i are, to remain root node (if it is at least Cycle Master capable). With the FireWire controller cards that I tested, MV5i always becomes root node when plugged in and left to its own devices. Reported-by: Ralf Lange Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> Cc: <stable@kernel.org> # 2.6.32.y and newer
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