summaryrefslogtreecommitdiffstats
path: root/include
AgeCommit message (Collapse)Author
2012-12-06KVM: PPC: Book3S HV: Provide a method for userspace to read and write the HPTPaul Mackerras
A new ioctl, KVM_PPC_GET_HTAB_FD, returns a file descriptor. Reads on this fd return the contents of the HPT (hashed page table), writes create and/or remove entries in the HPT. There is a new capability, KVM_CAP_PPC_HTAB_FD, to indicate the presence of the ioctl. The ioctl takes an argument structure with the index of the first HPT entry to read out and a set of flags. The flags indicate whether the user is intending to read or write the HPT, and whether to return all entries or only the "bolted" entries (those with the bolted bit, 0x10, set in the first doubleword). This is intended for use in implementing qemu's savevm/loadvm and for live migration. Therefore, on reads, the first pass returns information about all HPTEs (or all bolted HPTEs). When the first pass reaches the end of the HPT, it returns from the read. Subsequent reads only return information about HPTEs that have changed since they were last read. A read that finds no changed HPTEs in the HPT following where the last read finished will return 0 bytes. The format of the data provides a simple run-length compression of the invalid entries. Each block of data starts with a header that indicates the index (position in the HPT, which is just an array), the number of valid entries starting at that index (may be zero), and the number of invalid entries following those valid entries. The valid entries, 16 bytes each, follow the header. The invalid entries are not explicitly represented. Signed-off-by: Paul Mackerras <paulus@samba.org> [agraf: fix documentation] Signed-off-by: Alexander Graf <agraf@suse.de>
2012-12-06KVM: Distangle eventfd code from irqchipAlexander Graf
The current eventfd code assumes that when we have eventfd, we also have irqfd for in-kernel interrupt delivery. This is not necessarily true. On PPC we don't have an in-kernel irqchip yet, but we can still support easily support eventfd. Signed-off-by: Alexander Graf <agraf@suse.de>
2012-12-06SUNRPC: Don't allow low priority tasks to pre-empt higher priority onesTrond Myklebust
Currently, the priority queues attempt to be 'fair' to lower priority tasks by scheduling them after a certain number of higher priority tasks have run. The problem is that both the transport send queue and the NFSv4.1 session slot queue have strong ordering requirements. This patch therefore removes the fairness code in favour of strong ordering of task priorities. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-12-06NFSv4: Reorder the XDR structures to put sequence at the top, not bottomTrond Myklebust
Pre-condition for optimising the slot allocation and reintroducing FIFO behaviour. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-12-06NFSv4: Clean up handling of privileged operationsTrond Myklebust
Privileged rpc calls are those that are run by the state recovery thread, in cases where we're trying to recover the system after a server reboot or a network partition. In those cases, we want to fence off all other rpc calls (see nfs4_begin_drain_session()) so that they don't end up using stateids or clientids that are in the process of being recovered. Prior to this patch, we had to set up special callback functions in order to declare an rpc call as being privileged. By adding a new field to the sequence arguments, this patch simplifies things considerably, and allows us to declare the rpc call as privileged before it is run. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-12-06NFSv4.1: Move slot table and session struct definitions to nfs4session.hTrond Myklebust
Clean up. Gather NFSv4.1 slot definitions in fs/nfs/nfs4session.h. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-12-06NFS: Remove unused function slot_idxTrond Myklebust
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-12-06NFSv4.1: Allow SEQUENCE to resize the slot table on the flyTrond Myklebust
Instead of an array of slots, use a singly linked list of slots that can be dynamically appended to or shrunk. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-12-06NFSv4.1: Support dynamic resizing of the session slot tableTrond Myklebust
Allow the server to control the size of the session slot table by adjusting the value of sr_target_max_slots in the reply to the SEQUENCE operation. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-12-06NFSv4.1: Reset the sequence number for slots that have been deallocatedTrond Myklebust
When the server tells us that it is dynamically resizing the session replay cache, we should reset the sequence number for those slots that have been deallocated. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-12-06NFSv4.1: Ensure that the client tracks the server target_highest_slotidTrond Myklebust
Dynamic slot allocation in NFSv4.1 depends on the client being able to track the server's target value for the highest slotid in the slot table. See the reference in Section 2.10.6.1 of RFC5661. To avoid ordering problems in the case where 2 SEQUENCE replies contain conflicting updates to this target value, we also introduce a generation counter, to track whether or not an RPC containing a SEQUENCE operation was launched before or after the last update. Also rename the nfs4_slot_table target_max_slots field to 'target_highest_slotid' to avoid confusion with a slot table size or number of slots. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-12-05spi/clps711x: New SPI master driverAlexander Shiyan
This patch add new driver for CLPS711X SPI master controller. Due to platform limitations driver supports only 8 bit transfer mode. Chip select control is handled via GPIO. Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2012-12-05PCI: Add support for non-BAR ROMsMatthew Garrett
Platforms may provide their own mechanisms for obtaining ROMs. Add support for using data provided by the platform in that case. Signed-off-by: Matthew Garrett <mjg@redhat.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Tested-by: Seth Forshee <seth.forshee@canonical.com>
2012-12-05PCI: Add pcibios_add_deviceMatthew Garrett
Platforms may want to provide architecture-specific functionality during PCI enumeration. Add a pcibios_add_device() call that architectures can override to do so. Signed-off-by: Matthew Garrett <mjg@redhat.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Tested-by: Seth Forshee <seth.forshee@canonical.com>
2012-12-05EFI: Stash ROMs if they're not in the PCI BARMatthew Garrett
EFI provides support for providing PCI ROMs via means other than the ROM BAR. This support vanishes after we've exited boot services, so add support for stashing copies of the ROMs in setup_data if they're not otherwise available. Signed-off-by: Matthew Garrett <mjg@redhat.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Tested-by: Seth Forshee <seth.forshee@canonical.com>
2012-12-05bridge: implement multicast fast leaveDavid S. Miller
V3: make it a flag V2: make the toggle per-port Fast leave allows bridge to immediately stops the multicast traffic on the port receives IGMP Leave when IGMP snooping is enabled, no timeouts are observed. Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: Stephen Hemminger <shemminger@vyatta.com> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: Cong Wang <amwang@redhat.com>
2012-12-05PCI: Add and use standard PCI-X Capability register namesBjorn Helgaas
Add and use #defines for PCI-X Capability registers and fields. Note that the PCI-X Capability has a different layout for type 0 (endpoint) and type 1 (bridge) devices. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2012-12-05bdi: add a user-tunable cpu_list for the bdi flusher threadsJeff Moyer
In realtime environments, it may be desirable to keep the per-bdi flusher threads from running on certain cpus. This patch adds a cpu_list file to /sys/class/bdi/* to enable this. The default is to tie the flusher threads to the same numa node as the backing device (though I could be convinced to make it a mask of all cpus to avoid a change in behaviour). Thanks to Jeremy Eder for the original idea. Signed-off-by: Jeff Moyer <jmoyer@redhat.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2012-12-05hwmon: (ads7828) driver cleanupVivien Didelot
As there is no reliable way to identify the chip, it is preferable to remove the detect callback, to avoid misdetection. Module parameters are not worth it here, so let's get rid of them and add an ads7828_platform_data structure instead. Clean the code by removing unused macros, fixing coding style issues, avoiding function prototypes and using convenient macros such as module_i2c_driver(). Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2012-12-05kvm: add kvm_set_irq_inatomicMichael S. Tsirkin
Add an API to inject IRQ from atomic context. Return EWOULDBLOCK if impossible (e.g. for multicast). Only MSI is supported ATM. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Gleb Natapov <gleb@redhat.com>
2012-12-05ACPI / PM: Fix header of acpi_dev_pm_detach() in acpi.hRafael J. Wysocki
The header of acpi_dev_pm_detach() in include/linux/acpi.h has an incorrect return type, which should be void. Fix that. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2012-12-05mac80211: introduce IEEE80211_HW_TEARDOWN_AGGR_ON_BAR_FAILStanislaw Gruszka
Commit f0425beda4d404a6e751439b562100b902ba9c98 "mac80211: retry sending failed BAR frames later instead of tearing down aggr" caused regression on rt2x00 hardware (connection hangs). This regression was fixed by commit be03d4a45c09ee5100d3aaaedd087f19bc20d01 "rt2x00: Don't let mac80211 send a BAR when an AMPDU subframe fails". But the latter commit caused yet another problem reported in https://bugzilla.kernel.org/show_bug.cgi?id=42828#c22 After long discussion in this thread: http://mid.gmane.org/20121018075615.GA18212@redhat.com and testing various alternative solutions, which failed on one or other setup, we have no other good fix for the issues like just revert both mentioned earlier commits. To do not affect other hardware which benefit from commit f0425beda4d404a6e751439b562100b902ba9c98, instead of reverting it, introduce flag that when used will restore mac80211 behaviour before the commit. Cc: stable@vger.kernel.org Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> [replaced link with mid.gmane.org that has message-id] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-12-05target: Add link_magic for fabric allow_link destination target_itemsNicholas Bellinger
This patch adds [dev,lun]_link_magic value assignment + checks within generic target_fabric_port_link() and target_fabric_mappedlun_link() code to ensure destination config_item *target_item sent from configfs_symlink() -> config_item_operations->allow_link() is the underlying se_device->dev_group and se_lun->lun_group that we expect to symlink. Reported-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Cc: stable@vger.kernel.org Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2012-12-04ipmr/ip6mr: report origin of mfc entry into rtnl msgNicolas Dichtel
A mfc entry can be static or not (added via the mroute_sk socket). The patch reports MFC_STATIC flag into rtm_protocol by setting rtm_protocol to RTPROT_STATIC or RTPROT_MROUTED. Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-04ipmr/ip6mr: advertise mfc stats via rtnetlinkNicolas Dichtel
These statistics can be checked only via /proc/net/ip_mr_cache or SIOCGETSGCNT[_IN6] and thus only for the table RT_TABLE_DEFAULT. Advertising them via rtnetlink allows to get statistics for all cache entries, whatever the table is. Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-04netconf: advertise mc_forwarding statusNicolas Dichtel
This patch advertise the MC_FORWARDING status for IPv4 and IPv6. This field is readonly, only multicast engine in the kernel updates it. Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-04Merge branch 'master' of git://1984.lsi.us.es/nf-nextDavid S. Miller
Pablo Neira Ayuso says: ==================== * Remove limitation in the maximum number of supported sets in ipset. Now ipset automagically increments the number of slots in the array of sets by 64 new spare slots, from Jozsef Kadlecsik. * Partially remove the generic queue infrastructure now that ip_queue is gone. Its only client is nfnetlink_queue now, from Florian Westphal. * Add missing attribute policy checkings in ctnetlink, from Florian Westphal. * Automagically kill conntrack entries that use the wrong output interface for the masquerading case in case of routing changes, from Jozsef Kadlecsik. * Two patches two improve ct object traceability. Now ct objects are always placed in any of the existing lists. This allows us to dump the content of unconfirmed and dying conntracks via ctnetlink as a way to provide more instrumentation in case you suspect leaks, from myself. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-04Merge branch 'fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux Pull module fixes from Rusty Russell: "Module signing build fixes for blackfin and metag" * 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux: modsign: add symbol prefix to certificate list linux/kernel.h: define SYMBOL_PREFIX
2012-12-04svcrpc: track rpc data length separately from sk_tcplenJ. Bruce Fields
Keep a separate field, sk_datalen, that tracks only the data contained in a fragment, not including the fragment header. For now, this is always just max(0, sk_tcplen - 4), but after we allow multiple fragments sk_datalen will accumulate the total rpc data size while sk_tcplen only tracks progress receiving the current fragment. Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2012-12-04svcrpc: don't byte-swap sk_reclen in placeJ. Bruce Fields
Byte-swapping in place is always a little dubious. Let's instead define this field to always be big-endian, and do the swapping on demand where we need it. Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2012-12-04drm/exynos: add userptr feature for g2d moduleInki Dae
This patch adds userptr feautre for G2D module. The userptr means user space address allocated by malloc(). And the purpose of this feature is to make G2D's dma able to access the user space region. To user this feature, user should flag G2D_BUF_USRPTR to offset variable of struct drm_exynos_g2d_cmd and fill struct drm_exynos_g2d_userptr with user space address and size for it and then should set a pointer to drm_exynos_g2d_userptr object to data variable of struct drm_exynos_g2d_cmd. The last bit of offset variable is used to check if the cmdlist's buffer type is userptr or not. If userptr, the g2d driver gets user space address and size and then gets pages through get_user_pages(). (another case is counted as gem handle) Below is sample codes: static void set_cmd(struct drm_exynos_g2d_cmd *cmd, unsigned long offset, unsigned long data) { cmd->offset = offset; cmd->data = data; } static int solid_fill_test(int x, int y, unsigned long userptr) { struct drm_exynos_g2d_cmd cmd_gem[5]; struct drm_exynos_g2d_userptr g2d_userptr; unsigned int gem_nr = 0; ... g2d_userptr.userptr = userptr; g2d_userptr.size = x * y * 4; set_cmd(&cmd_gem[gem_nr++], DST_BASE_ADDR_REG | G2D_BUF_USERPTR, (unsigned long)&g2d_userptr); ... } int main(int argc, char **argv) { unsigned long addr; ... addr = malloc(x * y * 4); ... solid_fill_test(x, y, addr); ... } And next, the pages are mapped with iommu table and the device address is set to cmdlist so that G2D's dma can access it. As you may know, the pages from get_user_pages() are pinned. In other words, they CAN NOT be migrated and also swapped out. So the dma access would be safe. But the use of userptr feature has performance overhead so this patch also has memory pool to the userptr feature. Please, assume that user sends cmdlist filled with userptr and size every time to g2d driver, and the get_user_pages funcion will be called every time. The memory pool has maximum 64MB size and the userptr that user had ever sent, is holded in the memory pool. This meaning is that if the userptr from user is same as one in the memory pool, device address to the userptr in the memory pool is set to cmdlist. And last, the pages from get_user_pages() will be freed once user calls free() and the dma access is completed. Actually, get_user_pages() takes 2 reference counts if the user process has never accessed user region allocated by malloc(). Then, if the user calls free(), the page reference count becomes 1 and becomes 0 with put_page() call. And the reverse holds as well. This means how the pages backed are used by dma and freed. This patch is based on "drm/exynos: add iommu support for g2d", https://patchwork.kernel.org/patch/1629481/ Signed-off-by: Inki Dae <inki.dae@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
2012-12-03tun: only queue packets on deviceMichael S. Tsirkin
Historically tun supported two modes of operation: - in default mode, a small number of packets would get queued at the device, the rest would be queued in qdisc - in one queue mode, all packets would get queued at the device This might have made sense up to a point where we made the queue depth for both modes the same and set it to a huge value (500) so unless the consumer is stuck the chance of losing packets is small. Thus in practice both modes behave the same, but the default mode has some problems: - if packets are never consumed, fragments are never orphaned which cases a DOS for sender using zero copy transmit - overrun errors are hard to diagnose: fifo error is incremented only once so you can not distinguish between userspace that is stuck and a transient failure, tcpdump on the device does not show any traffic Userspace solves this simply by enabling IFF_ONE_QUEUE but there seems to be little point in not doing the right thing for everyone, by default. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-03Merge branch 'block-dev'Linus Torvalds
Merge 'block-dev' branch. I was going to just mark everything here for stable and leave it to the 3.8 merge window, but having decided on doing another -rc, I migth as well merge it now. This removes the bd_block_size_semaphore semaphore that was added in this release to fix a race condition between block size changes and block IO, and replaces it with atomicity guaratees in fs/buffer.c instead, along with simplifying fs/block-dev.c. This removes more lines than it adds, makes the code generally simpler, and avoids the latency/rt issues that the block size semaphore introduced for mount. I'm not happy with the timing, but it wouldn't be much better doing this during the merge window and then having some delayed back-port of it into stable. * block-dev: blkdev_max_block: make private to fs/buffer.c direct-io: don't read inode->i_blkbits multiple times blockdev: remove bd_block_size_semaphore again fs/buffer.c: make block-size be per-page and protected by the page lock
2012-12-03Merge branch 'for-upstream' of ↵John W. Linville
git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next
2012-12-03sctp: Add support to per-association statistics via a new ↵Michele Baldessari
SCTP_GET_ASSOC_STATS call The current SCTP stack is lacking a mechanism to have per association statistics. This is an implementation modeled after OpenSolaris' SCTP_GET_ASSOC_STATS. Userspace part will follow on lksctp if/when there is a general ACK on this. V4: - Move ipackets++ before q->immediate.func() for consistency reasons - Move sctp_max_rto() at the end of sctp_transport_update_rto() to avoid returning bogus RTO values - return asoc->rto_min when max_obs_rto value has not changed V3: - Increase ictrlchunks in sctp_assoc_bh_rcv() as well - Move ipackets++ to sctp_inq_push() - return 0 when no rto updates took place since the last call V2: - Implement partial retrieval of stat struct to cope for future expansion - Kill the rtxpackets counter as it cannot be precise anyway - Rename outseqtsns to outofseqtsns to make it clearer that these are out of sequence unexpected TSNs - Move asoc->ipackets++ under a lock to avoid potential miscounts - Fold asoc->opackets++ into the already existing asoc check - Kill unneeded (q->asoc) test when increasing rtxchunks - Do not count octrlchunks if sending failed (SCTP_XMIT_OK != 0) - Don't count SHUTDOWNs as SACKs - Move SCTP_GET_ASSOC_STATS to the private space API - Adjust the len check in sctp_getsockopt_assoc_stats() to allow for future struct growth - Move association statistics in their own struct - Update idupchunks when we send a SACK with dup TSNs - return min_rto in max_rto when RTO has not changed. Also return the transport when max_rto last changed. Signed-off: Michele Baldessari <michele@acksyn.org> Acked-by: Vlad Yasevich <vyasevich@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-03Bluetooth: trivial: Change NO_FCS_RECV to RECV_NO_FCSAndrei Emeltchenko
Make code more readable by changing CONF_NO_FCS_RECV which is read as "No L2CAP FCS option received" to CONF_RECV_NO_FCS which means "Received L2CAP option NO_FCS". This flag really means that we have received L2CAP FRAME CHECK SEQUENCE (FCS) OPTION with value "No FCS". Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com> Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
2012-12-03Bluetooth: AMP: Check that AMP is present and activeAndrei Emeltchenko
Before starting quering remote AMP controllers make sure that there is local active AMP controller. Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com> Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
2012-12-03Bluetooth: Move double negation to macrosGustavo Padovan
Some comparisons needs to double negation(!!) in order to make the value of the field boolean. Add it to the macro makes the code more readable. Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
2012-12-03Bluetooth: Implement deferred sco socket setupFrédéric Dalleau
In order to authenticate and configure an incoming SCO connection, the BT_DEFER_SETUP option was added. This option is intended to defer reply to Connect Request on SCO sockets. When a connection is requested, the listening socket is unblocked but the effective connection setup happens only on first recv. Any send between accept and recv fails with -ENOTCONN. Signed-off-by: Frédéric Dalleau <frederic.dalleau@linux.intel.com> Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
2012-12-03iommu/omap: Adapt to runtime pmOmar Ramirez Luna
Use runtime PM functionality interfaced with hwmod enable/idle functions, to replace direct clock operations and sysconfig handling. Due to reset sequence, pm_runtime_[get|put]_sync must be used, to avoid possible operations with the module under reset. Because of this and given that the driver uses spin_locks to protect their critical sections, we must use pm_runtime_irq_safe in order for the runtime ops to be happy, otherwise might_sleep_if checks in runtime framework will complain. The remaining pm_runtime out of iommu_enable and iommu_disable corresponds to paths that can be accessed through debugfs, some of them doesn't work if the module is not enabled first, but in future if the mmu is idled withouth freeing, these are needed to debug. Signed-off-by: Omar Ramirez Luna <omar.luna@linaro.org> Tested-by: Ohad Ben-Cohen <ohad@wizery.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Joerg Roedel <joro@8bytes.org>
2012-12-03iommu/omap: Migrate to hwmod frameworkOmar Ramirez Luna
Use hwmod data and device attributes to build and register an omap device for iommu driver. - Update the naming convention in isp module. - Remove unneeded check for number of resources, as this is now handled by omap_device and prevents driver from loading. - Now unused, remove platform device and resource data, handling of sysconfig register for softreset purposes, use default latency structure. - Use hwmod API for reset handling. Signed-off-by: Omar Ramirez Luna <omar.luna@linaro.org> Tested-by: Ohad Ben-Cohen <ohad@wizery.com> Signed-off-by: Joerg Roedel <joro@8bytes.org>
2012-12-03Merge branch 'omap-for-v3.8/cleanup-headers-iommu' of ↵Joerg Roedel
git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into arm/omap
2012-12-03mtd: nand: add NAND_BUSWIDTH_AUTO to autodetect bus widthMatthieu CASTET
The driver call nand_scan_ident in 8 bit mode, then readid or onfi detection are done (and detect bus width). The driver should update its bus width before calling nand_scan_tail. This work because readid and onfi are read work 8 byte mode. Note that nand_scan_ident send command (NAND_CMD_RESET, NAND_CMD_READID, NAND_CMD_PARAM), address and read data The ONFI specificication is not very clear for x16 device if high byte of address should be driven to 0, but according to [1] it should be ok to not drive it during autodetection. [1] 3.3.2. Target Initialization [...] The Read ID and Read Parameter Page commands only use the lower 8-bits of the data bus. The host shall not issue commands that use a word data width on x16 devices until the host determines the device supports a 16-bit data bus width in the parameter page. Signed-off-by: Matthieu CASTET <matthieu.castet@parrot.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
2012-12-03netfilter: nf_nat: Handle routing changes in MASQUERADE targetJozsef Kadlecsik
When the route changes (backup default route, VPNs) which affect a masqueraded target, the packets were sent out with the outdated source address. The patch addresses the issue by comparing the outgoing interface directly with the masqueraded interface in the nat table. Events are inefficient in this case, because it'd require adding route events to the network core and then scanning the whole conntrack table and re-checking the route for all entry. Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2012-12-03netfilter: kill support for per-af queue backendsFlorian Westphal
We used to have several queueing backends, but nowadays only nfnetlink_queue remains. In light of this there doesn't seem to be a good reason to support per-af registering -- just hook up nfnetlink_queue on module load and remove it on unload. This means that the userspace BIND/UNBIND_PF commands are now obsolete; the kernel will ignore them. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2012-12-03netfilter: ctnetlink: dump entries from the dying and unconfirmed listsPablo Neira Ayuso
This patch adds a new operation to dump the content of the dying and unconfirmed lists. Under some situations, the global conntrack counter can be inconsistent with the number of entries that we can dump from the conntrack table. The way to resolve this is to allow dumping the content of the unconfirmed and dying lists, so far it was not possible to look at its content. This provides some extra instrumentation to resolve problematic situations in which anyone suspects memory leaks. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2012-12-03netfilter: nf_conntrack: improve nf_conn object traceabilityPablo Neira Ayuso
This patch modifies the conntrack subsystem so that all existing allocated conntrack objects can be found in any of the following places: * the hash table, this is the typical place for alive conntrack objects. * the unconfirmed list, this is the place for newly created conntrack objects that are still traversing the stack. * the dying list, this is where you can find conntrack objects that are dying or that should die anytime soon (eg. once the destroy event is delivered to the conntrackd daemon). Thus, we make sure that we follow the track for all existing conntrack objects. This patch, together with some extension of the ctnetlink interface to dump the content of the dying and unconfirmed lists, will help in case to debug suspected nf_conn object leaks. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2012-12-03ARM: 7588/1: amba: create a resource parent registratorLinus Walleij
This creates amba_apb_device_add_res() and amba_ahb_device_add_res() respectively, to add devices with another parent than iomem_resource. This is needed to specify that a device is contained in a specific IO range. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-12-03mac80211: Fix typo in mac80211.hSimon Wunderlich
Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-12-03pata_platform: remove unused remove functionBrian Norris
All users of __pata_platform_remove() have been converted to utilize the common ata_platform_remove_one(). Signed-off-by: Brian Norris <computersforpeace@gmail.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>