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* x64, x2apic/intr-remap: disable DMA-remapping if Interrupt-remapping is ↵Suresh Siddha2008-07-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | detected (temporary quirk) Interrupt-remapping enables queued invalidation. And once queued invalidation is enabled, IOTLB invalidation also needs to use the queued invalidation mechanism and the register based IOTLB invalidation doesn't work. For now, Support for IOTLB invalidation using queued invalidation is missing. Meanwhile, disable DMA-remapping, if Interrupt-remapping support is detected. For the meanwhile, if someone wants to really enable DMA-remapping, they can use nox2apic, which will disable interrupt-remapping and as such doesn't enable queued invalidation. And given that none of the release platforms support intr-remapping yet, we should be ok for this temporary hack. Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Cc: akpm@linux-foundation.org Cc: arjan@linux.intel.com Cc: andi@firstfloor.org Cc: ebiederm@xmission.com Cc: jbarnes@virtuousgeek.org Cc: steiner@sgi.com Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x64, x2apic/intr-remap: cpuid bits for x2apic featureSuresh Siddha2008-07-12
| | | | | | | | | | | | | cpuid feature for x2apic. Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Cc: akpm@linux-foundation.org Cc: arjan@linux.intel.com Cc: andi@firstfloor.org Cc: ebiederm@xmission.com Cc: jbarnes@virtuousgeek.org Cc: steiner@sgi.com Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x64, x2apic/intr-remap: basic apic ops supportSuresh Siddha2008-07-12
| | | | | | | | | | | | | | | | | | | | Introduce basic apic operations which handle the apic programming. This will be used later to introduce another specific operations for x2apic. For the perfomance critial accesses like IPI's, EOI etc, we use the native operations as they are already referenced by different indirections like genapic, irq_chip etc. 64bit Paravirt ops can also define their apic operations accordingly. Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Cc: akpm@linux-foundation.org Cc: arjan@linux.intel.com Cc: andi@firstfloor.org Cc: ebiederm@xmission.com Cc: jbarnes@virtuousgeek.org Cc: steiner@sgi.com Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x64, x2apic/intr-remap: Interrupt-remapping and x2apic support, fixSuresh Siddha2008-07-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Yinghai Lu wrote: > Setting APIC routing to physical flat > Kernel panic - not syncing: Boot APIC ID in local APIC unexpected (0 vs 4) > Pid: 1, comm: swapper Not tainted 2.6.26-rc9-tip-01763-g74f94b1-dirty #320 > > Call Trace: > [<ffffffff80a21505>] ? set_cpu_sibling_map+0x38c/0x3bd > [<ffffffff80245215>] ? read_xapic_id+0x25/0x3e > [<ffffffff80e5a2c3>] ? verify_local_APIC+0x139/0x1b9 > [<ffffffff80245215>] ? read_xapic_id+0x25/0x3e > [<ffffffff80e589af>] ? native_smp_prepare_cpus+0x224/0x2e9 > [<ffffffff80e4881a>] ? kernel_init+0x64/0x341 > [<ffffffff8022a439>] ? child_rip+0xa/0x11 > [<ffffffff80e487b6>] ? kernel_init+0x0/0x341 > [<ffffffff8022a42f>] ? child_rip+0x0/0x11 > > > guess read_apic_id changing cuase some problem... genapic's read_apic_id() returns the actual apic id extracted from the APIC_ID register. And in some cases like UV, read_apic_id() returns completely different values from APIC ID register. Use the native apic register read, rather than genapic read_apic_id() in verify_local_APIC() And also, lapic_suspend() should also use native apic register read. Reported-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Cc: "akpm@linux-foundation.org" <akpm@linux-foundation.org> Cc: "arjan@linux.intel.com" <arjan@linux.intel.com> Cc: "andi@firstfloor.org" <andi@firstfloor.org> Cc: "ebiederm@xmission.com" <ebiederm@xmission.com> Cc: "jbarnes@virtuousgeek.org" <jbarnes@virtuousgeek.org> Cc: "steiner@sgi.com" <steiner@sgi.com> Cc: "jeremy@goop.org" <jeremy@goop.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x64, x2apic/intr-remap: introduce read_apic_id() to genapic routinesSuresh Siddha2008-07-12
| | | | | | | | | | | | | Move the read_apic_id() to genapic routines. Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Cc: akpm@linux-foundation.org Cc: arjan@linux.intel.com Cc: andi@firstfloor.org Cc: ebiederm@xmission.com Cc: jbarnes@virtuousgeek.org Cc: steiner@sgi.com Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x64, x2apic/intr-remap: ioapic routines which deal with initial io-apic RTE ↵Suresh Siddha2008-07-12
| | | | | | | | | | | | | | | | setup Generic ioapic specific routines which be used later during enabling interrupt-remapping. Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Cc: akpm@linux-foundation.org Cc: arjan@linux.intel.com Cc: andi@firstfloor.org Cc: ebiederm@xmission.com Cc: jbarnes@virtuousgeek.org Cc: steiner@sgi.com Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x64, x2apic/intr-remap: 8259 specific mask/unmask routinesSuresh Siddha2008-07-12
| | | | | | | | | | | | | | 8259 specific mask/unmask routines which be used later while enabling interrupt-remapping. Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Cc: akpm@linux-foundation.org Cc: arjan@linux.intel.com Cc: andi@firstfloor.org Cc: ebiederm@xmission.com Cc: jbarnes@virtuousgeek.org Cc: steiner@sgi.com Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x64, x2apic/intr-remap: generic irq migration support from process contextSuresh Siddha2008-07-12
| | | | | | | | | | | | | | | | | Generic infrastructure for migrating the irq from the process context in the presence of CONFIG_GENERIC_PENDING_IRQ. This will be used later for migrating irq in the presence of interrupt-remapping. Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Cc: akpm@linux-foundation.org Cc: arjan@linux.intel.com Cc: andi@firstfloor.org Cc: ebiederm@xmission.com Cc: jbarnes@virtuousgeek.org Cc: steiner@sgi.com Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x64, x2apic/intr-remap: routines managing Interrupt remapping table entries.Suresh Siddha2008-07-12
| | | | | | | | | | | | | Routines handling the management of interrupt remapping table entries. Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Cc: akpm@linux-foundation.org Cc: arjan@linux.intel.com Cc: andi@firstfloor.org Cc: ebiederm@xmission.com Cc: jbarnes@virtuousgeek.org Cc: steiner@sgi.com Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x64, x2apic/intr-remap: Interrupt remapping infrastructureSuresh Siddha2008-07-12
| | | | | | | | | | | | | | Interrupt remapping (part of Intel Virtualization Tech for directed I/O) infrastructure. Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Cc: akpm@linux-foundation.org Cc: arjan@linux.intel.com Cc: andi@firstfloor.org Cc: ebiederm@xmission.com Cc: jbarnes@virtuousgeek.org Cc: steiner@sgi.com Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x64, x2apic/intr-remap: Queued invalidation infrastructure (part of VT-d)Suresh Siddha2008-07-12
| | | | | | | | | | | | | | | | | | Queued invalidation (part of Intel Virtualization Technology for Directed I/O architecture) infrastructure. This will be used for invalidating the interrupt entry cache in the case of Interrupt-remapping and IOTLB invalidation in the case of DMA-remapping. Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Cc: akpm@linux-foundation.org Cc: arjan@linux.intel.com Cc: andi@firstfloor.org Cc: ebiederm@xmission.com Cc: jbarnes@virtuousgeek.org Cc: steiner@sgi.com Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x64, x2apic/intr-remap: move IOMMU_WAIT_OP() macro to intel-iommu.hSuresh Siddha2008-07-12
| | | | | | | | | | | | | | | move IOMMU_WAIT_OP() macro to header file. This will be used by both DMA-remapping and Intr-remapping. Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Cc: akpm@linux-foundation.org Cc: arjan@linux.intel.com Cc: andi@firstfloor.org Cc: ebiederm@xmission.com Cc: jbarnes@virtuousgeek.org Cc: steiner@sgi.com Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x64, x2apic/intr-remap: parse ioapic scope under vt-d structuresSuresh Siddha2008-07-12
| | | | | | | | | | | | | | | | Parse the vt-d device scope structures to find the mapping between IO-APICs and the interrupt remapping hardware units. This will be used later for enabling Interrupt-remapping for IOAPIC devices. Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Cc: akpm@linux-foundation.org Cc: arjan@linux.intel.com Cc: andi@firstfloor.org Cc: ebiederm@xmission.com Cc: jbarnes@virtuousgeek.org Cc: steiner@sgi.com Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x64, x2apic/intr-remap: Fix the need for RMRR in the DMA-remapping detectionSuresh Siddha2008-07-12
| | | | | | | | | | | | | | | Presence of RMRR structures is not compulsory for enabling DMA-remapping. Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Signed-off-by: Yong Y Wang <yong.y.wang@intel.com> Cc: Yong Y Wang <yong.y.wang@intel.com> Cc: akpm@linux-foundation.org Cc: arjan@linux.intel.com Cc: andi@firstfloor.org Cc: ebiederm@xmission.com Cc: jbarnes@virtuousgeek.org Cc: steiner@sgi.com Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x64, x2apic/intr-remap: use CONFIG_DMAR for DMA-remapping specific codeSuresh Siddha2008-07-12
| | | | | | | | | | | | | | DMA remapping specific code covered with CONFIG_DMAR in the generic code which will also be used later for enabling Interrupt-remapping. Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Cc: akpm@linux-foundation.org Cc: arjan@linux.intel.com Cc: andi@firstfloor.org Cc: ebiederm@xmission.com Cc: jbarnes@virtuousgeek.org Cc: steiner@sgi.com Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x64, x2apic/intr-remap: code re-structuring, to be used by both DMA and ↵Suresh Siddha2008-07-12
| | | | | | | | | | | | | | | | | | | | | Interrupt remapping Allocate the iommu during the parse of DMA remapping hardware definition structures. And also, introduce routines for device scope initialization which will be explicitly called during dma-remapping initialization. These will be used for enabling interrupt remapping separately from the existing DMA-remapping enabling sequence. Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Cc: akpm@linux-foundation.org Cc: arjan@linux.intel.com Cc: andi@firstfloor.org Cc: ebiederm@xmission.com Cc: jbarnes@virtuousgeek.org Cc: steiner@sgi.com Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x64, x2apic/intr-remap: fix the need for sequential array allocation of iommusSuresh Siddha2008-07-12
| | | | | | | | | | | | | | | | | | Clean up the intel-iommu code related to deferred iommu flush logic. There is no need to allocate all the iommu's as a sequential array. This will be used later in the interrupt-remapping patch series to allocate iommu much early and individually for each device remapping hardware unit. Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Cc: akpm@linux-foundation.org Cc: arjan@linux.intel.com Cc: andi@firstfloor.org Cc: ebiederm@xmission.com Cc: jbarnes@virtuousgeek.org Cc: steiner@sgi.com Signed-off-by: Ingo Molnar <mingo@elte.hu>
* x64, x2apic/intr-remap: Intel vt-d, IOMMU code reorganizationSuresh Siddha2008-07-12
| | | | | | | | | | | | | | | | | code reorganization of the generic Intel vt-d parsing related routines and linux iommu routines specific to Intel vt-d. drivers/pci/dmar.c now contains the generic vt-d parsing related routines drivers/pci/intel_iommu.c contains the iommu routines specific to vt-d Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Cc: akpm@linux-foundation.org Cc: arjan@linux.intel.com Cc: andi@firstfloor.org Cc: ebiederm@xmission.com Cc: jbarnes@virtuousgeek.org Cc: steiner@sgi.com Signed-off-by: Ingo Molnar <mingo@elte.hu>
* Merge branch 'x86/core' into x86/x2apicIngo Molnar2008-07-12
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| * Merge branch 'linus' into x86/coreIngo Molnar2008-07-12
| |\ | |/ |/| | | | | | | | | | | Conflicts: arch/x86/mm/ioremap.c Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | Merge git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdogLinus Torvalds2008-07-11
|\ \ | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog: [PATCH] IPMI: return correct value from ipmi_write
| * | [PATCH] IPMI: return correct value from ipmi_writeMark Rustad2008-07-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch corrects the handling of write operations to the IPMI watchdog to work as intended by returning the number of characters actually processed. Without this patch, an "echo V >/dev/watchdog" enables the watchdog if IPMI is providing the watchdog function. Signed-off-by: Mark Rustad <MRustad@gmail.com> Signed-off-by: Corey Minyard <cminyard@mvista.com> Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
* | | Merge branch 'upstream-linus' of ↵Linus Torvalds2008-07-11
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev * 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev: libata-acpi: don't call sleeping function from invalid context Added Targa Visionary 1000 IDE adapter to pata_sis.c libata-acpi: filter out DIPM enable
| * | | libata-acpi: don't call sleeping function from invalid contextZhang Rui2008-07-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The problem is introduced by commit 664d080c41463570b95717b5ad86e79dc1be0877. acpi_evaluate_integer is a sleeping function, and it should not be called with spin_lock_irqsave. https://bugzilla.redhat.com/show_bug.cgi?id=451399 Signed-off-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
| * | | Added Targa Visionary 1000 IDE adapter to pata_sis.cKai Krakow2008-07-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This enables short 40-wire detection for my laptop thus enabling UDMA/100. Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
| * | | libata-acpi: filter out DIPM enableTejun Heo2008-07-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some BIOSen enable DIPM via _GTF which causes command timeouts under certain configuration. This didn't occur on 2.6.25 because 2.6.25 defaulted to SRST, so _GTF wasn't executed during boot probe, so ahci host reset disabled DIPM and as _GTF wasn't executed after SRST, DIPM wasn't enabled. On 2.6.26, hardreset is used during probe and after probe _GTF is executed enabling DIPM and thus the failures. This patch could theoretically disable DIPM on machines which used to have it enabled on 2.6.25 but AFAIK ahci is currently the only driver which uses SATA ACPI hierarchy (_SDD) and as the host reset would have always disabled DIPM, this shouldn't happen. Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* | | | Fix reference counting race on log buffersDave Chinner2008-07-11
| |/ / |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When we release the iclog, we do an atomic_dec_and_lock to determine if we are the last reference and need to trigger update of log headers and writeout. However, in xlog_state_get_iclog_space() we also need to check if we have the last reference count there. If we do, we release the log buffer, otherwise we decrement the reference count. But the compare and decrement in xlog_state_get_iclog_space() is not atomic, so both places can see a reference count of 2 and neither will release the iclog. That leads to a filesystem hang. Close the race by replacing the atomic_read() and atomic_dec() pair with atomic_add_unless() to ensure that they are executed atomically. Signed-off-by: Dave Chinner <david@fromorbit.com> Reviewed-by: Tim Shimmin <tes@sgi.com> Tested-by: Eric Sandeen <sandeen@sandeen.net> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | rtc: fix reported IRQ rate for when HPET is enabledPaul Gortmaker2008-07-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The IRQ rate reported back by the RTC is incorrect when HPET is enabled. Newer hardware that has HPET to emulate the legacy RTC device gets this value wrong since after it sets the rate, it returns before setting the variable used to report the IRQ rate back to users of the device -- so the set rate and the reported rate get out of sync. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: David Brownell <david-b@pacbell.net> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | Fix name of Russell King in various commentsUwe Kleine-König2008-07-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch was created by git grep -E -l 'Rus(el|s?e)l King' | xargs -r -t perl -p -i -e 's/Rus(el|s?e)l King/Russell King/g' Signed-off-by: Uwe Kleine-König <Uwe.Kleine-Koenig@digi.com> Most-Definitely-Acked-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | rapidio: fix device reference countingEugene Surovegin2008-07-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix RapidIO device reference counting. Signed-of-by: Eugene Surovegin <ebs@ebshome.net> Cc: Matt Porter <mporter@kernel.crashing.org> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | tpm: add Intel TPM TIS device HIDMarcin Obara2008-07-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds Intel TPM TIS device HID: ICO0102 Signed-off-by: Marcin Obara <marcin_obara@users.sourceforge.net> Acked-by: Marcel Selhorst <tpm@selhorst.net> Acked-by: Rajiv Andrade <srajiv@linux.vnet.ibm.com> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds2008-07-10
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (27 commits) tun: Persistent devices can get stuck in xoff state xfrm: Add a XFRM_STATE_AF_UNSPEC flag to xfrm_usersa_info ipv6: missed namespace context in ipv6_rthdr_rcv netlabel: netlink_unicast calls kfree_skb on error path by itself ipv4: fib_trie: Fix lookup error return tcp: correct kcalloc usage ip: sysctl documentation cleanup Documentation: clarify tcp_{r,w}mem sysctl docs netfilter: nf_nat_snmp_basic: fix a range check in NAT for SNMP netfilter: nf_conntrack_tcp: fix endless loop libertas: fix memory alignment problems on the blackfin zd1211rw: stop beacons on remove_interface rt2x00: Disable synchronization during initialization rc80211_pid: Fix fast_start parameter handling sctp: Add documentation for sctp sysctl variable ipv6: fix race between ipv6_del_addr and DAD timer irda: Fix netlink error path return value irda: New device ID for nsc-ircc irda: via-ircc proper dma freeing sctp: Mark the tsn as received after all allocations finish ...
| * | | tun: Persistent devices can get stuck in xoff stateMax Krasnyansky2008-07-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The scenario goes like this. App stops reading from tun/tap. TX queue gets full and driver does netif_stop_queue(). App closes fd and TX queue gets flushed as part of the cleanup. Next time the app opens tun/tap and starts reading from it but the xoff state is not cleared. We're stuck. Normally xoff state is cleared when netdev is brought up. But in the case of persistent devices this happens only during initial setup. The fix is trivial. If device is already up when an app opens it we clear xoff state and that gets things moving again. Signed-off-by: Max Krasnyansky <maxk@qualcomm.com> Tested-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | xfrm: Add a XFRM_STATE_AF_UNSPEC flag to xfrm_usersa_infoSteffen Klassert2008-07-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add a XFRM_STATE_AF_UNSPEC flag to handle the AF_UNSPEC behavior for the selector family. Userspace applications can set this flag to leave the selector family of the xfrm_state unspecified. This can be used to to handle inter family tunnels if the selector is not set from userspace. Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com> Acked-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | ipv6: missed namespace context in ipv6_rthdr_rcvDenis V. Lunev2008-07-10
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Denis V. Lunev <den@parallels.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | netlabel: netlink_unicast calls kfree_skb on error path by itselfDenis V. Lunev2008-07-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | So, no need to kfree_skb here on the error path. In this case we can simply return. Signed-off-by: Denis V. Lunev <den@openvz.org> Acked-by: Paul Moore <paul.moore@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | ipv4: fib_trie: Fix lookup error returnBen Hutchings2008-07-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In commit a07f5f508a4d9728c8e57d7f66294bf5b254ff7f "[IPV4] fib_trie: style cleanup", the changes to check_leaf() and fn_trie_lookup() were wrong - where fn_trie_lookup() would previously return a negative error value from check_leaf(), it now returns 0. Now fn_trie_lookup() doesn't appear to care about plen, so we can revert check_leaf() to returning the error value. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Tested-by: William Boughton <bill@boughton.de> Acked-by: Stephen Heminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | tcp: correct kcalloc usageMilton Miller2008-07-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | kcalloc is supposed to be called with the count as its first argument and the element size as the second. Signed-off-by: Milton Miller <miltonm@bga.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | ip: sysctl documentation cleanupStephen Hemminger2008-07-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Reduced version of the spelling cleanup patch. Take out the confusing language in tcp_frto, and organize the undocumented values. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Acked-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | Documentation: clarify tcp_{r,w}mem sysctl docsJ. Bruce Fields2008-07-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix some of the defaults and attempt to clarify some language. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | Merge branch 'master' of ↵David S. Miller2008-07-09
| |\ \ \ | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6
| | * | | libertas: fix memory alignment problems on the blackfinIhar Hrachyshka2008-07-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fixing unaligned memory access on the blackfin architecture. Signed-off-by: Ihar Hrachyshka <ihar.hrachyshka@promwad.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| | * | | zd1211rw: stop beacons on remove_interfaceLuis Carlos Cobo2008-07-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If a mesh or ad-hoc interface is brought up and later it is replaced by managed interface, the managed interface will keep transmitting the beacons that were configured for the former interface. This patch fixes that behaviour. Signed-off-by: John W. Linville <linville@tuxdriver.com>
| | * | | rt2x00: Disable synchronization during initializationIvo van Doorn2008-07-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | As soon as init_registers() was called, the rt2400/rt2500 would start raising beacondone interrupts. Since this is highly premature since no beacons were provided yet, we should initialize the synchronization register to 0. This will make all drivers initialize it to 0 regardless if they are raising beacondone interrupts or not, since it only makes sense to have it completely disabled. Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| | * | | rc80211_pid: Fix fast_start parameter handlingMattias Nissler2008-07-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This removes the fast_start parameter from the rc_pid parameters information and instead uses the parameter macro when initializing the rc_pid state. Since the parameter is only used on initialization, there is no point of making exporting it via debugfs. This also fixes uninitialized memory references to the fast_start and norm_offset parameters detected by the kmemcheck utility. Thanks to Vegard Nossum for reporting the bug. Signed-off-by: Mattias Nissler <mattias.nissler@gmx.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * | | | netfilter: nf_nat_snmp_basic: fix a range check in NAT for SNMPDavid Howells2008-07-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix a range check in netfilter IP NAT for SNMP to always use a big enough size variable that the compiler won't moan about comparing it to ULONG_MAX/8 on a 64-bit platform. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | | netfilter: nf_conntrack_tcp: fix endless loopPatrick McHardy2008-07-09
| |/ / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When a conntrack entry is destroyed in process context and destruction is interrupted by packet processing and the packet is an attempt to reopen a closed connection, TCP conntrack tries to kill the old entry itself and returns NF_REPEAT to pass the packet through the hook again. This may lead to an endless loop: TCP conntrack repeatedly finds the old entry, but can not kill it itself since destruction is already in progress, but destruction in process context can not complete since TCP conntrack is keeping the CPU busy. Drop the packet in TCP conntrack if we can't kill the connection ourselves to avoid this. Reported by: hemao77@gmail.com [ Kernel bugzilla #11058 ] Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | sctp: Add documentation for sctp sysctl variableVlad Yasevich2008-07-08
| | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Acked-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | ipv6: fix race between ipv6_del_addr and DAD timerAndrey Vagin2008-07-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Consider the following scenario: ipv6_del_addr(ifp) ipv6_ifa_notify(RTM_DELADDR, ifp) ip6_del_rt(ifp->rt) after returning from the ipv6_ifa_notify and enabling BH-s back, but *before* calling the addrconf_del_timer the ifp->timer fires and: addrconf_dad_timer(ifp) addrconf_dad_completed(ifp) ipv6_ifa_notify(RTM_NEWADDR, ifp) ip6_ins_rt(ifp->rt) then return back to the ipv6_del_addr and: in6_ifa_put(ifp) inet6_ifa_finish_destroy(ifp) dst_release(&ifp->rt->u.dst) After this we have an ifp->rt inserted into fib6 lists, but queued for gc, which in turn can result in oopses in the fib6_run_gc. Maybe some other nasty things, but we caught only the oops in gc so far. The solution is to disarm the ifp->timer before flushing the rt from it. Signed-off-by: Andrey Vagin <avagin@parallels.com> Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | irda: Fix netlink error path return valueJulius Volz2008-07-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix an incorrect return value check of genlmsg_put() in irda_nl_get_mode(). genlmsg_put() does not use ERR_PTR() to encode return values, it just returns NULL on error. Signed-off-by: Julius Volz <juliusv@google.com> Signed-off-by: Samuel Ortiz <samuel@sortiz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
generated by cgit v1.2.2 (git 2.25.0) at 2025-01-08 01:41:41 -0500