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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>
2010-09-27tproxy: 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>
2010-09-26ipv6: 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>
2010-09-26net: reset skb queue mapping when rx'ing over tunnelTom Herbert
Reset queue mapping when an skb is reentering the stack via a tunnel. On second pass, the queue mapping from the original device is no longer valid. Signed-off-by: Tom Herbert <therbert@google.com> Acked-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-22net: Move "struct net" declaration inside the __KERNEL__ macro guardOllie Wild
This patch reduces namespace pollution by moving the "struct net" declaration out of the userspace-facing portion of linux/netlink.h. It has no impact on the kernel. (This came up because we have several C++ applications which use "net" as a namespace name.) Signed-off-by: Ollie Wild <aaw@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-20xfrm: Allow different selector family in temporary stateThomas Egerer
The family parameter xfrm_state_find is used to find a state matching a certain policy. This value is set to the template's family (encap_family) right before xfrm_state_find is called. The family parameter is however also used to construct a temporary state in xfrm_state_find itself which is wrong for inter-family scenarios because it produces a selector for the wrong family. Since this selector is included in the xfrm_user_acquire structure, user space programs misinterpret IPv6 addresses as IPv4 and vice versa. This patch splits up the original init_tempsel function into a part that initializes the selector respectively the props and id of the temporary state, to allow for differing ip address families whithin the state. Signed-off-by: Thomas Egerer <thomas.egerer@secunet.com> Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-17netpoll: Disable IRQ around RCU dereference in netpoll_rxHerbert Xu
We cannot use rcu_dereference_bh safely in netpoll_rx as we may be called with IRQs disabled. We could however simply disable IRQs as that too causes BH to be disabled and is safe in either case. Thanks to John Linville for discovering this bug and providing a patch. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-15tcp: Prevent overzealous packetization by SWS logic.Alexey Kuznetsov
If peer uses tiny MSS (say, 75 bytes) and similarly tiny advertised window, the SWS logic will packetize to half the MSS unnecessarily. This causes problems with some embedded devices. However for large MSS devices we do want to half-MSS packetize otherwise we never get enough packets into the pipe for things like fast retransmit and recovery to work. Be careful also to handle the case where MSS > window, otherwise we'll never send until the probe timer. Reported-by: ツ Leandro Melo de Sales <leandroal@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-09Merge branch 'vhost-net' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
2010-09-08Merge branch 'master' of ↵David S. Miller
master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6
2010-09-08udp: add rehash on connect()Eric Dumazet
commit 30fff923 introduced in linux-2.6.33 (udp: bind() optimisation) added a secondary hash on UDP, hashed on (local addr, local port). Problem is that following sequence : fd = socket(...) connect(fd, &remote, ...) not only selects remote end point (address and port), but also sets local address, while UDP stack stored in secondary hash table the socket while its local address was INADDR_ANY (or ipv6 equivalent) Sequence is : - autobind() : choose a random local port, insert socket in hash tables [while local address is INADDR_ANY] - connect() : set remote address and port, change local address to IP given by a route lookup. When an incoming UDP frame comes, if more than 10 sockets are found in primary hash table, we switch to secondary table, and fail to find socket because its local address changed. One solution to this problem is to rehash datagram socket if needed. We add a new rehash(struct socket *) method in "struct proto", and implement this method for UDP v4 & v6, using a common helper. This rehashing only takes care of secondary hash table, since primary hash (based on local port only) is not changed. Reported-by: Krzysztof Piotr Oledzki <ole@ans.pl> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Tested-by: Krzysztof Piotr Oledzki <ole@ans.pl> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-08ipvs: fix active FTPJulian Anastasov
- Do not create expectation when forwarding the PORT command to avoid blocking the connection. The problem is that nf_conntrack_ftp.c:help() tries to create the same expectation later in POST_ROUTING and drops the packet with "dropping packet" message after failure in nf_ct_expect_related. - Change ip_vs_update_conntrack to alter the conntrack for related connections from real server. If we do not alter the reply in this direction the next packet from client sent to vport 20 comes as NEW connection. We alter it but may be some collision happens for both conntracks and the second conntrack gets destroyed immediately. The connection stucks too. Signed-off-by: Julian Anastasov <ja@ssi.bg> Signed-off-by: Simon Horman <horms@verge.net.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-07Merge 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: bus speed strings should be const PCI hotplug: Fix build with CONFIG_ACPI unset PCI: PCIe: Remove the port driver module exit routine PCI: PCIe: Move PCIe PME code to the pcie directory PCI: PCIe: Disable PCIe port services during port initialization PCI: PCIe: Ask BIOS for control of all native services at once ACPI/PCI: Negotiate _OSC control bits before requesting them ACPI/PCI: Do not preserve _OSC control bits returned by a query ACPI/PCI: Make acpi_pci_query_osc() return control bits ACPI/PCI: Reorder checks in acpi_pci_osc_control_set() PCI: PCIe: Introduce commad line switch for disabling port services PCI: PCIe AER: Introduce pci_aer_available() x86/PCI: only define pci_domain_nr if PCI and PCI_DOMAINS are set PCI: provide stub pci_domain_nr function for !CONFIG_PCI configs
2010-09-07Merge branch 'merge' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: powerpc/pseries: Correct rtas_data_buf locking in dlpar code powerpc/85xx: Add P1021 PCI IDs and quirks arch/powerpc/sysdev/qe_lib/qe.c: Add of_node_put to avoid memory leak arch/powerpc/platforms/83xx/mpc837x_mds.c: Add missing iounmap fsl_rio: fix compile errors powerpc/85xx: Fix compile issue with p1022_ds due to lmb rename to memblock powerpc/85xx: Fix compilation of mpc85xx_mds.c powerpc: Don't use kernel stack with translation off powerpc/perf_event: Reduce latency of calling perf_event_do_pending powerpc/kexec: Adds correct calling convention for kexec purgatory
2010-09-07Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu: percpu: fix a mismatch between code and comment percpu: fix a memory leak in pcpu_extend_area_map() percpu: add __percpu notations to UP allocator percpu: handle __percpu notations in UP accessors
2010-09-07Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wqLinus Torvalds
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq: workqueue: use zalloc_cpumask_var() for gcwq->mayday_mask workqueue: fix GCWQ_DISASSOCIATED initialization workqueue: Add a workqueue chapter to the tracepoint docbook workqueue: fix cwq->nr_active underflow workqueue: improve destroy_workqueue() debuggability workqueue: mark lock acquisition on worker_maybe_bind_and_lock() workqueue: annotate lock context change workqueue: free rescuer on destroy_workqueue
2010-09-07Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6: tty: fix tty_line must not be equal to number of allocated tty pointers in tty driver serial: bfin_sport_uart: restore transmit frame sync fix serial: fix port type conflict between NS16550A & U6_16550A MAINTAINERS: orphan isicom vt: Fix console corruption on driver hand-over.
2010-09-07agp/intel: Fix cache control for SandybridgeZhenyu Wang
Sandybridge GTT has new cache control bits in PTE, which controls graphics page cache in LLC or LLC/MLC, so we need to extend the mask function to respect the new bits. And set cache control to always LLC only by default on Gen6. Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com> Cc: stable@kernel.org Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2010-09-05cgroups: fix API thinkoMichael S. Tsirkin
cgroup_attach_task_current_cg API that have upstream is backwards: we really need an API to attach to the cgroups from another process A to the current one. In our case (vhost), a priveledged user wants to attach it's task to cgroups from a less priveledged one, the API makes us run it in the other task's context, and this fails. So let's make the API generic and just pass in 'from' and 'to' tasks. Add an inline wrapper for cgroup_attach_task_current_cg to avoid breaking bisect. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Acked-by: Li Zefan <lizf@cn.fujitsu.com> Acked-by: Paul Menage <menage@google.com>
2010-09-03serial: fix port type conflict between NS16550A & U6_16550APhilippe Langlais
Bug seen by Dr. David Alan Gilbert with sparse Signed-off-by: Philippe Langlais <philippe.langlais@stericsson.com> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-09-03cls_cgroup: Fix rcu lockdep warningLi Zefan
Dave reported an rcu lockdep warning on 2.6.35.4 kernel task->cgroups and task->cgroups->subsys[i] are protected by RCU. So we avoid accessing invalid pointers here. This might happen, for example, when you are deref-ing those pointers while someone move @task from one cgroup to another. Reported-by: Dave Jones <davej@redhat.com> Signed-off-by: Li Zefan <lizf@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-08-31powerpc/85xx: Add P1021 PCI IDs and quirksAnton Vorontsov
This is needed for proper PCI-E support on P1021 SoCs. Signed-off-by: Anton Vorontsov <avorontsov@mvista.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2010-08-28Merge 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: net/ipv4: Eliminate kstrdup memory leak net/caif/cfrfml.c: use asm/unaligned.h ax25: missplaced sock_put(sk) qlge: reset the chip before freeing the buffers l2tp: test for ethernet header in l2tp_eth_dev_recv() tcp: select(writefds) don't hang up when a peer close connection tcp: fix three tcp sysctls tuning tcp: Combat per-cpu skew in orphan tests. pxa168_eth: silence gcc warnings pxa168_eth: update call to phy_mii_ioctl() pxa168_eth: fix error handling in prope pxa168_eth: remove unneeded null check phylib: Fix race between returning phydev and calling adjust_link caif-driver: add HAS_DMA dependency 3c59x: Fix deadlock between boomerang_interrupt and boomerang_start_tx qlcnic: fix poll implementation netxen: fix poll implementation bridge: netfilter: fix a memory leak
2010-08-28Merge branch 'for-linus' of git://git.infradead.org/users/eparis/notifyLinus Torvalds
* 'for-linus' of git://git.infradead.org/users/eparis/notify: fsnotify: drop two useless bools in the fnsotify main loop fsnotify: fix list walk order fanotify: Return EPERM when a process is not privileged fanotify: resize pid and reorder structure fanotify: drop duplicate pr_debug statement fanotify: flush outstanding perm requests on group destroy fsnotify: fix ignored mask handling between inode and vfsmount marks fanotify: add MAINTAINERS entry fsnotify: reset used_inode and used_vfsmount on each pass fanotify: do not dereference inode_mark when it is unset
2010-08-28Merge branch 'drm-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6 * 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: vgaarb: Wrap vga_(get|put) in CONFIG_VGA_ARB drm/radeon/kms: add missing scratch update in dp_detect drm/modes: Fix CVT-R modeline generation drm: fix regression in drm locking since BKL removal. drm/radeon/kms: remove stray radeon_i2c_destroy drm: mm: fix range restricted allocations drm/nouveau: drop drm_global_mutex before sleeping in submission path drm: export drm_global_mutex for drivers to use drm/nv20: Don't use pushbuf calls on the original nv20. drm/nouveau: Fix TMDS on some DCB1.5 boards. drm/nouveau: Fix backlight control on PPC machines with an internal TMDS panel. drm/nv30: Apply modesetting to the correct slave encoder drm/nouveau: Use a helper function to match PCI device/subsystem IDs. drm/nv50: add dcb type 14 to enum to prevent compiler complaint
2010-08-28NOMMU: Stub out vm_get_page_prot() if there's no MMUDavid Howells
Stub out vm_get_page_prot() if there's no MMU. This was added by commit 804af2cf6e7a ("[AGPGART] remove private page protection map") and is used in commit c07fbfd17e61 ("fbmem: VM_IO set, but not propagated") in the fbmem video driver, but the function doesn't exist on NOMMU, resulting in an undefined symbol at link time. Signed-off-by: David Howells <dhowells@redhat.com> Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-08-28Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: pxa27x_keypad - remove input_free_device() in pxa27x_keypad_remove() Input: mousedev - fix regression of inverting axes Input: uinput - add devname alias to allow module on-demand load Input: hil_kbd - fix compile error USB: drop tty argument from usb_serial_handle_sysrq_char() Input: sysrq - drop tty argument form handle_sysrq() Input: sysrq - drop tty argument from sysrq ops handlers
2010-08-27fanotify: resize pid and reorder structureTvrtko Ursulin
resize pid and reorder the fanotify_event_metadata so it is naturally aligned and we can work towards dropping the packed attributed Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@sophos.com> Cc: Andreas Dilger <adilger@dilger.ca> Signed-off-by: Eric Paris <eparis@redhat.com>
2010-08-27vgaarb: Wrap vga_(get|put) in CONFIG_VGA_ARBChris Wilson
Fix link failure without the vga arbitrator. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Dave Airlie <airlied@redhat.com> Cc: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-08-25tcp: Combat per-cpu skew in orphan tests.David S. Miller
As reported by Anton Blanchard when we use percpu_counter_read_positive() to make our orphan socket limit checks, the check can be off by up to num_cpus_online() * batch (which is 32 by default) which on a 128 cpu machine can be as large as the default orphan limit itself. Fix this by doing the full expensive sum check if the optimized check triggers. Reported-by: Anton Blanchard <anton@samba.org> Signed-off-by: David S. Miller <davem@davemloft.net> Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
2010-08-25workqueue: fix cwq->nr_active underflowTejun Heo
cwq->nr_active is used to keep track of how many work items are active for the cpu workqueue, where 'active' is defined as either pending on global worklist or executing. This is used to implement the max_active limit and workqueue freezing. If a work item is queued after nr_active has already reached max_active, the work item doesn't increment nr_active and is put on the delayed queue and gets activated later as previous active work items retire. try_to_grab_pending() which is used in the cancellation path unconditionally decremented nr_active whether the work item being cancelled is currently active or delayed, so cancelling a delayed work item makes nr_active underflow. This breaks max_active enforcement and triggers BUG_ON() in destroy_workqueue() later on. This patch fixes this bug by adding a flag WORK_STRUCT_DELAYED, which is set while a work item in on the delayed list and making try_to_grab_pending() decrement nr_active iff the work item is currently active. The addition of the flag enlarges cwq alignment to 256 bytes which is getting a bit too large. It's scheduled to be reduced back to 128 bytes by merging WORK_STRUCT_PENDING and WORK_STRUCT_CWQ in the next devel cycle. Signed-off-by: Tejun Heo <tj@kernel.org> Reported-by: Johannes Berg <johannes@sipsolutions.net>
2010-08-24ACPI/PCI: Negotiate _OSC control bits before requesting them Rafael J. Wysocki
It is possible that the BIOS will not grant control of all _OSC features requested via acpi_pci_osc_control_set(), so it is recommended to negotiate the final set of _OSC features with the query flag set before calling _OSC to request control of these features. To implement it, rework acpi_pci_osc_control_set() so that the caller can specify the mask of _OSC control bits to negotiate and the mask of _OSC control bits that are absolutely necessary to it. Then, acpi_pci_osc_control_set() will run _OSC queries in a loop until the mask of _OSC control bits returned by the BIOS is equal to the mask passed to it. Also, before running the _OSC request acpi_pci_osc_control_set() will check if the caller's required control bits are present in the final mask. Using this mechanism we will be able to avoid situations in which the BIOS doesn't grant control of certain _OSC features, because they depend on some other _OSC features that have not been requested. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2010-08-24ACPI/PCI: Do not preserve _OSC control bits returned by a query Rafael J. Wysocki
There is the assumption in acpi_pci_osc_control_set() that it is always sufficient to compare the mask of _OSC control bits to be requested with the result of an _OSC query where all of the known control bits have been checked. However, in general, that need not be the case. For example, if an _OSC feature A depends on an _OSC feature B and control of A, B plus another _OSC feature C is requested simultaneously, the BIOS may return A, B, C, while it would only return C if A and C were requested without B. That may result in passing a wrong mask of _OSC control bits to an _OSC control request, in which case the BIOS may only grant control of a subset of the requested features. Moreover, acpi_pci_run_osc() will return error code if that happens and the caller of acpi_pci_osc_control_set() will not know that it's been granted control of some _OSC features. Consequently, the system will generally not work as expected. Apart from this acpi_pci_osc_control_set() always uses the mask of _OSC control bits returned by the very first invocation of acpi_pci_query_osc(), but that is done with the second argument equal to OSC_PCI_SEGMENT_GROUPS_SUPPORT which generally happens to affect the returned _OSC control bits. For these reasons, make acpi_pci_osc_control_set() always check if control of the requested _OSC features will be granted before making the final control request. As a result, the osc_control_qry and osc_queried members of struct acpi_pci_root are not necessary any more, so drop them and remove the remaining code referring to them. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2010-08-24Merge 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: watchdog: Don't throttle the watchdog tracing: Fix timer tracing
2010-08-24guard page for stacks that grow upwardsLuck, Tony
pa-risc and ia64 have stacks that grow upwards. Check that they do not run into other mappings. By making VM_GROWSUP 0x0 on architectures that do not ever use it, we can avoid some unpleasant #ifdefs in check_stack_guard_page(). Signed-off-by: Tony Luck <tony.luck@intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-08-24workqueue: improve destroy_workqueue() debuggabilityTejun Heo
Now that the worklist is global, having works pending after wq destruction can easily lead to oops and destroy_workqueue() have several BUG_ON()s to catch these cases. Unfortunately, BUG_ON() doesn't tell much about how the work became pending after the final flush_workqueue(). This patch adds WQ_DYING which is set before the final flush begins. If a work is requested to be queued on a dying workqueue, WARN_ON_ONCE() is triggered and the request is ignored. This clearly indicates which caller is trying to queue a work on a dying workqueue and keeps the system working in most cases. Locking rule comment is updated such that the 'I' rule includes modifying the field from destruction path. Signed-off-by: Tejun Heo <tj@kernel.org>
2010-08-24Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6: kobject_uevent: fix typo in comments firmware_class: fix typo in error path kobject: Break the kobject namespace defs into their own header
2010-08-24Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: (29 commits) ARM: imx: fix build failure concerning otg/ulpi USB: ftdi_sio: add product ID for Lenz LI-USB USB: adutux: fix misuse of return value of copy_to_user() USB: iowarrior: fix misuse of return value of copy_to_user() USB: xHCI: update ring dequeue pointer when process missed tds USB: xhci: Remove buggy assignment in next_trb() USB: ftdi_sio: Add ID for Ionics PlugComputer USB: serial: io_ti.c: don't return 0 if writing the download record failed USB: otg: twl4030: fix wrong assumption of starting state USB: gadget: Return -ENOMEM on memory allocation failure USB: gadget: fix composite kernel-doc warnings USB: ssu100: set tty_flags in ssu100_process_packet USB: ssu100: add disconnect function for ssu100 USB: serial: export symbol usb_serial_generic_disconnect USB: ssu100: rework logic for TIOCMIWAIT USB: ssu100: add register parameter to ssu100_setregister USB: ssu100: remove duplicate #defines in ssu100 USB: ssu100: refine process_packet in ssu100 USB: ssu100: add locking for port private data in ssu100 USB: r8a66597-udc: return -ENOMEM if kzalloc() fails ...
2010-08-23USB: gadget: fix composite kernel-doc warningsRandy Dunlap
Warning(include/linux/usb/composite.h:284): No description found for parameter 'disconnect' Warning(drivers/usb/gadget/composite.c:744): No description found for parameter 'c' Warning(drivers/usb/gadget/composite.c:744): Excess function parameter 'cdev' description in 'usb_string_ids_n' Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Cc: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-23Merge 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: (27 commits) netfilter: fix CONFIG_COMPAT support isdn/avm: fix build when PCMCIA is not enabled header: fix broken headers for user space e1000e: don't check for alternate MAC addr on parts that don't support it e1000e: disable ASPM L1 on 82573 ll_temac: Fix poll implementation netxen: fix a race in netxen_nic_get_stats() qlnic: fix a race in qlcnic_get_stats() irda: fix a race in irlan_eth_xmit() net: sh_eth: remove unused variable netxen: update version 4.0.74 netxen: fix inconsistent lock state vlan: Match underlying dev carrier on vlan add ibmveth: Fix opps during MTU change on an active device ehea: Fix synchronization between HW and SW send queue bnx2x: Update bnx2x version to 1.52.53-4 bnx2x: Fix PHY locking problem rds: fix a leak of kernel memory netlink: fix compat recvmsg netfilter: fix userspace header warning ...
2010-08-23Merge branch 'for-upstream/pvhvm' of ↵Linus Torvalds
git://xenbits.xensource.com/people/ianc/linux-2.6 * 'for-upstream/pvhvm' of git://xenbits.xensource.com/people/ianc/linux-2.6: xen: pvhvm: make it clearer that XEN_UNPLUG_* define bits in a bitfield xen: pvhvm: rename xen_emul_unplug=ignore to =unnnecessary xen: pvhvm: allow user to request no emulated device unplug
2010-08-23Merge branch 'drm-core-next' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6 * 'drm-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: (33 commits) drm/radeon/kms: fix typo in radeon_compute_pll_gain drm/radeon/kms: try to detect tv vs monitor for underscan drm/radeon/kms: fix sideport detection on newer rs880 boards drm/radeon: fix passing wrong type to gem object create. drm/radeon/kms: set encoder type to DVI for HDMI on evergreen drm/radeon/kms: add back missing break in info ioctl drm/radeon/kms: don't enable MSIs on AGP boards drm/radeon/kms: fix agp mode setup on cards that use pcie bridges drm: move dereference below check drm: fix end of loop test drm/radeon/kms: rework radeon_dp_detect() logic drm/radeon/kms: add missing asic callback assignment for evergreen drm/radeon/kms/DCE3+: switch pads to ddc mode when going i2c drm/radeon/kms/pm: bail early if nothing's changing drm/radeon/kms/atom: clean up dig atom handling drm/radeon/kms: DCE3/4 transmitter fixes drm/radeon/kms: rework encoder handling drm/radeon/kms: DCE3/4 AdjustPixelPll updates drm/radeon: Fix stack data leak drm/radeon/kms: fix GTT/VRAM overlapping test ...
2010-08-23kobject: Break the kobject namespace defs into their own headerDavid Howells
Break the kobject namespace defs into their own header to avoid a header file inclusion ordering problem between linux/sysfs.h and linux/kobject.h. This fixes the build breakage on older versions of gcc. Signed-off-by: David Howells <dhowells@redhat.com> Cc: Eric Biederman <ebiederm@xmission.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-23xen: pvhvm: make it clearer that XEN_UNPLUG_* define bits in a bitfieldIan Campbell
by defining in terms of (1<<N). XEN_UNPLUG_UNNECESSARY and XEN_UNPLUG_NEVER are only used within the kernel and are not defined as a bit on the unplug IO port. Therefore use a bit which is outside the potentially valid range of the 16 bit IO port. Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Acked-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Acked-by: Stefano Stabellini <Stefano.Stabellini@eu.citrix.com>
2010-08-23xen: pvhvm: rename xen_emul_unplug=ignore to =unnnecessaryIan Campbell
It is not immediately clear what this option causes to become ignored. The actual meaning is that it is not necessary to unplug the emulated devices to safely use the PV ones, even if the platform does not support the unplug protocol. (pressumably the user will only add this option if they have ensured that their domain configuration is safe). I think xen_emul_unplug=unnecessary better captures this. Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Acked-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Acked-by: Stefano Stabellini <Stefano.Stabellini@eu.citrix.com>
2010-08-23xen: pvhvm: allow user to request no emulated device unplugIan Campbell
this allows the user to disable pvhvm and revert to emulated devices in case of a system misconfiguration (e.g. initramfs with only emulated drivers in it). Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Acked-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Acked-by: Stefano Stabellini <Stefano.Stabellini@eu.citrix.com>
2010-08-22header: fix broken headers for user spaceChangli Gao
__packed is only defined in kernel space, so we should use __attribute__((packed)) for the code shared between kernel and user space. Two __attribute() annotations are replaced with __attribute__() too. Signed-off-by: Changli Gao <xiaosuo@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-08-22fanotify: flush outstanding perm requests on group destroyEric Paris
When an fanotify listener is closing it may cause a deadlock between the listener and the original task doing an fs operation. If the original task is waiting for a permissions response it will be holding the srcu lock. The listener cannot clean up and exit until after that srcu lock is syncronized. Thus deadlock. The fix introduced here is to stop accepting new permissions events when a listener is shutting down and to grant permission for all outstanding events. Thus the original task will eventually release the srcu lock and the listener can complete shutdown. Reported-by: Andreas Gruenbacher <agruen@suse.de> Cc: Andreas Gruenbacher <agruen@suse.de> Signed-off-by: Eric Paris <eparis@redhat.com>
2010-08-22Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/penberg/slab-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/slab-2.6: slab: fix object alignment slub: add missing __percpu markup in mm/slub_def.h
2010-08-21workqueue: Add basic tracepoints to track workqueue executionArjan van de Ven
With the introduction of the new unified work queue thread pools, we lost one feature: It's no longer possible to know which worker is causing the CPU to wake out of idle. The result is that PowerTOP now reports a lot of "kworker/a:b" instead of more readable results. This patch adds a pair of tracepoints to the new workqueue code, similar in style to the timer/hrtimer tracepoints. With this pair of tracepoints, the next PowerTOP can correctly report which work item caused the wakeup (and how long it took): Interrupt (43) i915 time 3.51ms wakeups 141 Work ieee80211_iface_work time 0.81ms wakeups 29 Work do_dbs_timer time 0.55ms wakeups 24 Process Xorg time 21.36ms wakeups 4 Timer sched_rt_period_timer time 0.01ms wakeups 1 Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>