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2010-10-13Merge branch 'amd-iommu/2.6.37' of ↵Ingo Molnar
git://git.kernel.org/pub/scm/linux/kernel/git/joro/linux-2.6-iommu into core/iommu
2010-10-13x86/amd-iommu: Update copyright headersJoerg Roedel
This patch updates the copyright headers in all source files of the AMD IOMMU driver. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2010-10-13x86/amd-iommu: Reenable AMD IOMMU if it's mysteriously vanished over suspendMatthew Garrett
AMD's reference BIOS code had a bug that could result in the firmware failing to reenable the iommu on resume. It transpires that this causes certain less than desirable behaviour when it comes to PCI accesses, to whit them ending up somewhere near Bristol when the more desirable outcome was Edinburgh. Sadness ensues, perhaps along with filesystem corruption. Let's make sure that it gets turned back on, and that we restore its configuration so decisions it makes bear some resemblance to those made by reasonable people rather than crack-addled lemurs who spent all your DMA on Thunderbird. Signed-off-by: Matthew Garrett <mjg@redhat.com> Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2010-09-28Linux 2.6.36-rc6v2.6.36-rc6Linus Torvalds
2010-09-28MN10300: Handle missing sys_cacheflush() when caching disabledDavid Howells
When caching is disabled on the MN10300 arch, the sys_cacheflush() function is removed by conditional stuff in the makefiles, but is still referred to by the syscall table. Provide a null version that just returns 0 when caching is disabled (or -EINVAL if the arguments are silly). Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-09-28alpha: fix compile problem in arch/alpha/kernel/signal.cLinus Torvalds
Tssk. Apparently Al hadn't checked commit c52c2ddc1dfa ("alpha: switch osf_sigprocmask() to use of sigprocmask()") at all. It doesn't compile. Fixed as per suggestions from Michael Cree. Reported-by: Michael Cree <mcree@orcon.net.nz> Cc: Al Viro <viro@ftp.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-09-28Merge branch 'upstream-linus' of ↵Linus Torvalds
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: ahci: fix module refcount breakage introduced by libahci split
2010-09-28ahci: fix module refcount breakage introduced by libahci splitTejun Heo
libata depends on scsi_host_template for module reference counting and sht's should be owned by each low level driver. During libahci split, the sht was left with libahci.ko leaving the actual low level drivers not reference counted. This made ahci and ahci_platform always unloadable even while they're being actively used. Fix it by defining AHCI_SHT() macro in ahci.h and defining a sht for each low level ahci driver. stable: only applicable to 2.6.35. Signed-off-by: Tejun Heo <tj@kernel.org> Reported-by: Pedro Francisco <pedrogfrancisco@gmail.com> Tested-by: Michael Tokarev <mjt@tls.msk.ru> Cc: stable@kernel.org Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2010-09-28Merge branch 'hwmon-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/groeck/staging * 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/staging: hwmon (coretemp): Fix build breakage if SMP is undefined
2010-09-28Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6: PCI: fix pci_resource_alignment prototype
2010-09-28Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (47 commits) tcp: Fix >4GB writes on 64-bit. net/9p: Mount only matching virtio channels de2104x: fix ethtool tproxy: check for transparent flag in ip_route_newports ipv6: add IPv6 to neighbour table overflow warning tcp: fix TSO FACK loss marking in tcp_mark_head_lost 3c59x: fix regression from patch "Add ethtool WOL support" ipv6: add a missing unregister_pernet_subsys call s390: use free_netdev(netdev) instead of kfree() sgiseeq: use free_netdev(netdev) instead of kfree() rionet: use free_netdev(netdev) instead of kfree() ibm_newemac: use free_netdev(netdev) instead of kfree() smsc911x: Add MODULE_ALIAS() net: reset skb queue mapping when rx'ing over tunnel br2684: fix scheduling while atomic de2104x: fix TP link detection de2104x: fix power management de2104x: disable autonegotiation on broken hardware net: fix a lockdep splat e1000e: 82579 do not gate auto config of PHY by hardware during nominal use ...
2010-09-28hwmon (coretemp): Fix build breakage if SMP is undefinedGuenter Roeck
Commit e40cc4bdfd4b89813f072f72bd9c7055814d3f0f introduced a build breakage if CONFIG_SMP is undefined. This commit fixes the problem. This fix is only a workaround. For a real fix, cpu_sibling_mask() should be defined in UP include code, eg in linux/smp.h, and asm/smp.h should not be included directly. This fix is currently not possible because asm/smp.h defines cpu_sibling_mask() unconditionally and is included directly from many source files. Reported-by: Ingo Molnar <mingo@elte.hu> Tested-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com> Cc: Fenghua Yu <fenghua.yu@intel.com>
2010-09-27Merge branch 'x86/urgent' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86: Avoid 'constant_test_bit()' misoptimization due to cast to non-volatile
2010-09-27tcp: Fix >4GB writes on 64-bit.David S. Miller
Fixes kernel bugzilla #16603 tcp_sendmsg() truncates iov_len to an 'int' which a 4GB write to write zero bytes, for example. There is also the problem higher up of how verify_iovec() works. It wants to prevent the total length from looking like an error return value. However it does this using 'int', but syscalls return 'long' (and thus signed 64-bit on 64-bit machines). So it could trigger false-positives on 64-bit as written. So fix it to use 'long'. Reported-by: Olaf Bonorden <bono@onlinehome.de> Reported-by: Daniel Büse <dbuese@gmx.de> Reported-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-27Fix pktcdvd ioctl dev_minor range checkDan Rosenberg
The PKT_CTRL_CMD_STATUS device ioctl retrieves a pointer to a pktcdvd_device from the global pkt_devs array. The index into this array is provided directly by the user and is a signed integer, so the comparison to ensure that it falls within the bounds of this array will fail when provided with a negative index. This can be used to read arbitrary kernel memory or cause a crash due to an invalid pointer dereference. This can be exploited by users with permission to open /dev/pktcdvd/control (on many distributions, this is readable by group "cdrom"). Signed-off-by: Dan Rosenberg <dan.j.rosenberg@gmail.com> [ Rather than add a cast, just make the function take the right type -Linus ] Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-09-27MN10300: Default config choice GDBSTUB_TTYSM0 should be GDBSTUB_ON_TTYSM0David Howells
The configuration choice for the port on which the GDB stub listens has a default of GDBSTUB_TTYSM0, but this should be GDBSTUB_ON_TTYSM0 to match the option. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-09-27net/9p: Mount only matching virtio channelsSven Eckelmann
p9_virtio_create will only compare the the channel's tag characters against the device name till the end of the channel's tag but not till the end of the device name. This means that if a user defines channels with the tags foo and foobar then he would mount foo when he requested foonot and may mount foo when he requested foobar. Thus it is necessary to check both string lengths against each other in case of a successful partial string match. Signed-off-by: Sven Eckelmann <sven.eckelmann@gmx.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-27de2104x: fix ethtoolOndrej Zary
When the interface is up, using ethtool breaks it because: a) link is put down but media_timer interval is not shortened to NO_LINK b) rxtx is stopped but not restarted Also manual 10baseT-HD (and probably FD too - untested) mode does not work - the link is forced up, packets are transmitted but nothing is received. Changing CSR14 value to match documentation (not disabling link check) fixes this. Signed-off-by: Ondrej Zary <linux@rainbow-software.org> Acked-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-27Merge branch 'vhost-net' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
2010-09-27tproxy: check for transparent flag in ip_route_newportsUlrich Weber
as done in ip_route_connect() Signed-off-by: Ulrich Weber <uweber@astaro.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-27ipv6: add IPv6 to neighbour table overflow warningUlrich Weber
IPv4 and IPv6 have separate neighbour tables, so the warning messages should be distinguishable. [ Add a suitable message prefix on the ipv4 side as well -DaveM ] Signed-off-by: Ulrich Weber <uweber@astaro.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-27tcp: fix TSO FACK loss marking in tcp_mark_head_lostYuchung Cheng
When TCP uses FACK algorithm to mark lost packets in tcp_mark_head_lost(), if the number of packets in the (TSO) skb is greater than the number of packets that should be marked lost, TCP incorrectly exits the loop and marks no packets lost in the skb. This underestimates tp->lost_out and affects the recovery/retransmission. This patch fargments the skb and marks the correct amount of packets lost. Signed-off-by: Yuchung Cheng <ycheng@google.com> Acked-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-27Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: RDMA/cxgb3: Turn off RX coalescing for iWARP connections
2010-09-27Merge master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds
* master.kernel.org:/home/rmk/linux-2.6-arm: (28 commits) ARM: 6411/1: vexpress: set RAM latencies to 1 cycle for PL310 on ct-ca9x4 tile ARM: 6409/1: davinci: map sram using MT_MEMORY_NONCACHED instead of MT_DEVICE ARM: 6408/1: omap: Map only available sram memory ARM: 6407/1: mmu: Setup MT_MEMORY and MT_MEMORY_NONCACHED L1 entries ARM: pxa: remove pr_<level> uses of KERN_<level> ARM: pxa168fb: clear enable bit when not active ARM: pxa: fix cpu_is_pxa*() not expanding to zero when not configured ARM: pxa168: fix corrected reset vector ARM: pxa: Use PIO for PI2C communication on Palm27x ARM: pxa: Fix Vpac270 gpio_power for MMC ARM: 6401/1: plug a race in the alignment trap handler ARM: 6406/1: at91sam9g45: fix i2c bus speed leds: leds-ns2: fix locking ARM: dove: fix __io() definition to use bus based offset dmaengine: fix interrupt clearing for mv_xor ARM: kirkwood: Unbreak PCIe I/O port ARM: Fix build error when using KCONFIG_CONFIG ARM: 6383/1: Implement phys_mem_access_prot() to avoid attributes aliasing ARM: 6400/1: at91: fix arch_gettimeoffset fallout ARM: 6398/1: add proc info for ARM11MPCore/Cortex-A9 from ARM ...
2010-09-27Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs: net/9p: fix memory handling/allocation in rdma_request()
2010-09-27Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bpLinus Torvalds
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp: amd64_edac: Fix driver module removal
2010-09-27Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6: TOMOYO: Don't abuse sys_getpid(), sys_getppid()
2010-09-27Merge branch 'drm-intel-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/ickle/drm-intel * 'drm-intel-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/ickle/drm-intel: drm/i915/sdvo: Handle unsupported GET_SUPPORTED_ENHANCEMENTS gracefully drm/i915/sdvo: Cleanup connector on error path drm/i915: Fix 945GM regression in e259befd
2010-09-27Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc: mmc: sdhci-s3c: fix NULL ptr access in sdhci_s3c_remove mmc: sdhci-s3c: fix incorrect spinlock usage after merge mmc: MAINTAINERS: add myself as MMC maintainer
2010-09-27Merge branch 'urgent' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6 * 'urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6: pcmcia: pd6729: Fix error path pcmcia: preserve configuration information if request_io fails partly
2010-09-27Merge git://git.infradead.org/iommu-2.6Linus Torvalds
* git://git.infradead.org/iommu-2.6: intel-iommu: Use symbolic values instead of magic numbers in Lenovo w/a intel-iommu: Abort IOMMU setup for igfx if BIOS gave no shadow GTT space
2010-09-27Merge branch 'x86-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86/amd-iommu: Fix rounding-bug in __unmap_single x86/amd-iommu: Work around S3 BIOS bug x86/amd-iommu: Set iommu configuration flags in enable-loop x86, setup: Fix earlyprintk=serial,0x3f8,115200 x86, setup: Fix earlyprintk=serial,ttyS0,115200
2010-09-27Merge branch 'perf-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: perf, x86: Catch spurious interrupts after disabling counters tracing/x86: Don't use mcount in kvmclock.c tracing/x86: Don't use mcount in pvclock.c
2010-09-27mn10300: check __get_user/__put_user results...Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-09-27mn10300: get rid of set_fs(USER_DS) in sigframe setupAl Viro
It really has no business being there; short of a serious kernel bug we should already have USER_DS at that point. It shouldn't have been done on x86 either... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-09-27mn10300: ->restart_block.fn needs to be reset on sigreturnAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-09-27mn10300: prevent double syscall restartsAl Viro
set ->orig_d0 to -1, same as what sigreturn does Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-09-27mn10300: avoid SIGSEGV delivery loopAl Viro
force_sigsegv() is there for purpose... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-09-27alpha: __get_user/__put_user results need to be checked...Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-09-27alpha: switch osf_sigprocmask() to use of sigprocmask()Al Viro
get rid of a useless wrapper, while we are at it Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-09-273c59x: fix regression from patch "Add ethtool WOL support"Jan Beulich
This patch (commit 690a1f2002a3091bd18a501f46c9530f10481463) added a new call site for acpi_set_WOL() without checking that the function is actually suitable to be called via vortex_set_wol+0xcd/0xe0 [3c59x] dev_ethtool+0xa5a/0xb70 dev_ioctl+0x2e0/0x4b0 T.961+0x49/0x50 sock_ioctl+0x47/0x290 do_vfs_ioctl+0x7f/0x340 sys_ioctl+0x80/0xa0 system_call_fastpath+0x16/0x1b i.e. outside of code paths run when the device is not yet enabled or already disabled. In particular, putting the device into D3hot is a pretty bad idea when it was already brought up. Furthermore, all prior callers of the function made sure they're actually dealing with a PCI device, while the newly added one didn't. In the same spirit, the .get_wol handler shouldn't indicate support for WOL for non-PCI devices. Signed-off-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-27RDMA/cxgb3: Turn off RX coalescing for iWARP connectionsSteve Wise
The HW by default has RX coalescing on. For iWARP connections, this causes a 100ms delay in connection establishement due to the ingress MPA Start message being stalled in HW. So explicitly turn RX coalescing off when setting up iWARP connections. This was causing very bad performance for NP64 gather operations using Open MPI, due to the way it sets up connections on larger jobs. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Cc: <stable@kernel.org> Signed-off-by: Roland Dreier <rolandd@cisco.com>
2010-09-27ARM: 6411/1: vexpress: set RAM latencies to 1 cycle for PL310 on ct-ca9x4 tileWill Deacon
The PL310 on the ct-ca9x4 tile for the Versatile Express does not need to add additional latency when accessing its cache RAMs. Unfortunately, the boot monitor sets this up for an 8-cycle delay on reads and writes, resulting in greatly reduced memory performance when the L2 cache is enabled. This patch sets the L2 RAM latencies to the correct value of 1 cycle on the ct-ca9x4 tile before enabling the L2 cache. Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-09-27net/9p: fix memory handling/allocation in rdma_request()Davidlohr Bueso
Return -ENOMEM when erroring on kmalloc and fix memory leaks when returning on error. Signed-off-by: Davidlohr Bueso <dave@gnu.org> Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
2010-09-27amd64_edac: Fix driver module removalBorislav Petkov
f4347553b30ec66530bfe63c84530afea3803396 removed the edac polling mechanism in favor of using a notifier chain for conveying MCE information to edac. However, the module removal path didn't test whether the driver had setup the polling function workqueue at all and the rmmod process was hanging in the kernel at try_to_del_timer_sync() in the cancel_delayed_work() path, trying to cancel an uninitialized work struct. Fix that by adding a balancing check to the workqueue removal path. Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
2010-09-26x86: Avoid 'constant_test_bit()' misoptimization due to cast to non-volatileAlexander Chumachenko
While debugging bit_spin_lock() hang, it was tracked down to gcc-4.4 misoptimization of non-inlined constant_test_bit() due to non-volatile addr when 'const volatile unsigned long *addr' cast to 'unsigned long *' with subsequent unconditional jump to pause (and not to the test) leading to hang. Compiling with gcc-4.3 or disabling CONFIG_OPTIMIZE_INLINING yields inlined constant_test_bit() and correct jump, thus working around the kernel bug. Other arches than asm-x86 may implement this slightly differently; 2.6.29 mitigates the misoptimization by changing the function prototype (commit c4295fbb6048d85f0b41c5ced5cbf63f6811c46c) but probably fixing the issue itself is better. Signed-off-by: Alexander Chumachenko <ledest@gmail.com> Signed-off-by: Michael Shigorin <mike@osdn.org.ua> Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2010-09-26ipv6: add a missing unregister_pernet_subsys callNeil Horman
Clean up a missing exit path in the ipv6 module init routines. In addrconf_init we call ipv6_addr_label_init which calls register_pernet_subsys for the ipv6_addr_label_ops structure. But if module loading fails, or if the ipv6 module is removed, there is no corresponding unregister_pernet_subsys call, which leaves a now-bogus address on the pernet_list, leading to oopses in subsequent registrations. This patch cleans up both the failed load path and the unload path. Tested by myself with good results. Signed-off-by: Neil Horman <nhorman@tuxdriver.com> include/net/addrconf.h | 1 + net/ipv6/addrconf.c | 11 ++++++++--- net/ipv6/addrlabel.c | 5 +++++ 3 files changed, 14 insertions(+), 3 deletions(-) Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-26s390: use free_netdev(netdev) instead of kfree()Vasiliy Kulikov
Freeing netdev without free_netdev() leads to net, tx leaks. I might lead to dereferencing freed pointer. The semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) @@ struct net_device* dev; @@ -kfree(dev) +free_netdev(dev) Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-26sgiseeq: use free_netdev(netdev) instead of kfree()Kulikov Vasiliy
Freeing netdev without free_netdev() leads to net, tx leaks. I might lead to dereferencing freed pointer. The semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) @@ struct net_device* dev; @@ -kfree(dev) +free_netdev(dev) Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-26rionet: use free_netdev(netdev) instead of kfree()Kulikov Vasiliy
Freeing netdev without free_netdev() leads to net, tx leaks. I might lead to dereferencing freed pointer. The semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) @@ struct net_device* dev; @@ -kfree(dev) +free_netdev(dev) Signed-off-by: David S. Miller <davem@davemloft.net>