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2012-02-28Merge branch 'rcu/next' of ↵Ingo Molnar5-13/+117
git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/rcu The major features of this series are: - making RCU more aggressive about entering dyntick-idle mode in order to improve energy efficiency - converting a few more call_rcu()s to kfree_rcu()s - applying a number of rcutree fixes and cleanups to rcutiny - removing CONFIG_SMP #ifdefs from treercu - allowing RCU CPU stall times to be set via sysfs - adding CPU-stall capability to rcutorture - adding more RCU-abuse diagnostics - updating documentation - fixing yet more issues located by the still-ongoing top-to-bottom inspection of RCU, this time with a special focus on the CPU-hotplug code path. Signed-off-by: Ingo Molnar <mingo@elte.hu>
2012-02-28Merge branch 'fixes-for-grant' of git://sources.calxeda.com/kernel/linux ↵Grant Likely47-393/+188
into devicetree/merge
2012-02-28PCI: export __pci_remove_bus_deviceYinghai Lu1-0/+1
Don't switch to pci_remove_bus_device yet, keep the __ prefix for now (the behavior is still the same: remove without stopping first). This allows other out of tree users or pending patches to get notified from compiler warning. Signed-off-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2012-02-28PCI: Rename pci_remove_behind_bridge to pci_stop_and_remove_behind_bridgeYinghai Lu1-1/+1
The old pci_remove_behind_bridge actually do stop and remove. Make the name reflect that to reduce confusion. Suggested-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2012-02-28PCI: Rename pci_remove_bus_device to pci_stop_and_remove_bus_deviceYinghai Lu1-1/+1
The old pci_remove_bus_device actually did stop and remove. Make the name reflect that to reduce confusion. This patch is done by sed scripts and changes back some incorrect __pci_remove_bus_device changes. Suggested-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2012-02-27SUNRPC: move waitq from RPC pipe to RPC inodeStanislav Kinsbursky1-1/+1
Currently, wait queue, used for polling of RPC pipe changes from user-space, is a part of RPC pipe. But the pipe data itself can be released on NFS umount prior to dentry-inode pair, connected to it (is case of this pair is open by some process). This is not a problem for almost all pipe users, because all PipeFS file operations checks pipe reference prior to using it. Except evenfd. This thing registers itself with "poll" file operation and thus has a reference to pipe wait queue. This leads to oopses on destroying eventfd after NFS umount (like rpc_idmapd do) since not pipe data left to the point already. The solution is to wait queue from pipe data to internal RPC inode data. This looks more logical, because this wiat queue used only for user-space processes, which already holds inode reference. Note: upcalls have to get pipe->dentry prior to dereferecing wait queue to make sure, that mount point won't disappear from underneath us. Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-02-27Merge branch 'kirkwood/board' into next/boardsArnd Bergmann10-8/+29
* kirkwood/board: (2 commits) ARM: kirkwood: convert uart0 to devicetree. ARM: kirkwood: add dreamplug (fdt) support. Series sent by email from Jason Cooper <jason@lakedaemon.net> Update to Linux 3.3-rc3 Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2012-02-27usb: otg: Convert all users to pass struct usb_otg for OTG functionsHeikki Krogerus1-15/+15
This changes the otg functions so that they receive struct otg instead of struct usb_phy as parameter and converts all users of these functions to pass the otg member of their usb_phy. Includes fixes to IMX code from Sascha Hauer. [ balbi@ti.com : fixed a compile warning on ehci-mv.c ] Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Igor Grinberg <grinberg@compulab.co.il> Acked-by: Pavankumar Kondeti <pkondeti@codeaurora.org> Acked-by: Li Yang <leoli@freescale.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Reviewed-by: Marek Vasut <marek.vasut@gmail.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2012-02-27usb: otg: Remove OTG specific members from usb_phyHeikki Krogerus1-45/+5
All the drivers are now converted to use struct usb_otg, so removing the OTG specific members from struct usb_phy. Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Reviewed-by: Marek Vasut <marek.vasut@gmail.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2012-02-27Merge branch 'imx-cleanup' of git://git.pengutronix.de/git/imx/linux-2.6 ↵Arnd Bergmann10-8/+29
into next/cleanup * 'imx-cleanup' of git://git.pengutronix.de/git/imx/linux-2.6: (247 commits) ARM: Remove redundant ';' from avic_irq_set_priority() ARM: mx3: Let mx31 and mx35 share the same CCM header file ARM: plat-mxc: audmux-v1: Remove unneeded ifdef's Update to v3.3-rc3 Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2012-02-27Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller11-15/+31
Conflicts: drivers/net/ethernet/sfc/rx.c Overlapping changes in drivers/net/ethernet/sfc/rx.c, one to change the rx_buf->is_page boolean into a set of u16 flags, and another to adjust how ->ip_summed is initialized. Signed-off-by: David S. Miller <davem@davemloft.net>
2012-02-27devicetree: Add empty of_platform_populate() for !CONFIG_OF_ADDRESS (sparc)Grant Likely1-2/+10
Sparc has its own helpers for translating address ranges when the device tree is parsed at boot time, and it isn't able to use of_platform_populate(). However, there are some device drivers that want to use that function on other DT enabled platforms (ie. TWL4030). This patch adds an empty of_platform_populate() implementation that returns an error when CONFIG_OF_ADDRESS is not selected. Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Cc: Benoit Cousson <b-cousson@ti.com> Cc: Samuel Ortiz <sameo@linux.intel.com>
2012-02-27irq_domain: Centralize definition of irq_dispose_mapping()Grant Likely2-4/+5
Several architectures define their own empty irq_dispose_mapping(). Since the irq_domain code is centralized now, there is little need to do so. This patch removes them and creates a new empty copy when !CONFIG_IRQ_DOMAIN is selected. The patch also means that IRQ_DOMAIN becomes selectable on all architectures. Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Cc: Rob Herring <rob.herring@calxeda.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Jonas Bonn <jonas@southpole.se> Cc: sparclinux@vger.kernel.org Cc: linux@lists.openrisc.net
2012-02-27Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds4-2/+16
1) ICMP sockets leave err uninitialized but we try to return it for the unsupported MSG_OOB case, reported by Dave Jones. 2) Add new Zaurus device ID entries, from Dave Jones. 3) Pointer calculation in hso driver memset is wrong, from Dan Carpenter. 4) ks8851_probe() checks unsigned value as negative, fix also from Dan Carpenter. 5) Fix crashes in atl1c driver due to TX queue handling, from Eric Dumazet. I anticipate some TX side locking fixes coming in the near future for this driver as well. 6) The inline directive fix in Bluetooth which was breaking the build only with very new versions of GCC, from Johan Hedberg. 7) Fix crashes in the ATP CLIP code due to ARP cleanups this merge window, reported by Meelis Roos and fixed by Eric Dumazet. 8) JME driver doesn't flush RX FIFO correctly, from Guo-Fu Tseng. 9) Some ip6_route_output() callers test the return value for NULL, but this never happens as the convention is to return a dst entry with dst->error set. Fixes from RonQing Li. 10) Logitech Harmony 900 should be handled by zaurus driver not cdc_ether, update white lists and black lists accordingly. From Scott Talbert. 11) Receiving from certain kinds of devices there won't be a MAC header, so there is no MAC header to fixup in the IPSEC code, and if we try to do it we'll crash. Fix from Eric Dumazet. 12) Port type array indexing off-by-one in mlx4 driver, fix from Yevgeny Petrilin. 13) Fix regression in link-down handling in davinci_emac which causes all RX descriptors to be freed up and therefore RX to wedge completely, from Christian Riesch. 14) It took two attempts, but ctnetlink soft lockups seem to be cured now, from Pablo Neira Ayuso. 15) Endianness bug fix in ENIC driver, from Santosh Nayak. 16) The long ago conversion of the PPP fragmentation code over to abstracted SKB list handling wasn't perfect, once we get an out of sequence SKB we don't flush the rest of them like we should. From Ben McKeegan. 17) Fix regression of ->ip_summed initialization in sfc driver. From Ben Hutchings. 18) Bluetooth timeout mistakenly using msecs instead of jiffies, from Andrzej Kaczmarek. 19) Using _sync variant of work cancellation results in deadlocks, use the non _sync variants instead. From Andre Guedes. 20) Bluetooth rfcomm code had reference counting problems leading to crashes, fix from Octavian Purdila. 21) The conversion of netem over to classful qdisc handling added two bugs to netem_dequeue(), fixes from Eric Dumazet. 22) Missing pci_iounmap() in ATM Solos driver. Fix from Julia Lawall. 23) b44_pci_exit() should not have __exit tag since it's invoked from non-__exit code. From Nikola Pajkovsky. 24) The conversion of the neighbour hash tables over to RCU added a race, fixed here by adding the necessary reread of tbl->nht, fix from Michel Machado. 25) When we added VF (virtual function) attributes for network device dumps, this potentially bloats up the size of the dump of one network device such that the dump size is too large for the buffer allocated by properly written netlink applications. In particular, if you add 255 VFs to a network device, parts of GLIBC stop working. To fix this, we add an attribute that is used to turn on these extended portions of the network device dump. Sophisticaed applications like 'ip' that want to see this stuff will be changed to set the attribute, whereas things like GLIBC that don't care about VFs simply will not, and therefore won't be busted by the mere presence of VFs on a network device. Thanks to the tireless work of Greg Rose on this fix. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (53 commits) sfc: Fix assignment of ip_summed for pre-allocated skbs ppp: fix 'ppp_mp_reconstruct bad seq' errors enic: Fix endianness bug. gre: fix spelling in comments netfilter: ctnetlink: fix soft lockup when netlink adds new entries (v2) Revert "netfilter: ctnetlink: fix soft lockup when netlink adds new entries" davinci_emac: Do not free all rx dma descriptors during init mlx4_core: Fixing array indexes when setting port types phy: IC+101G and PHY_HAS_INTERRUPT flag netdev/phy/icplus: Correct broken phy_init code ipsec: be careful of non existing mac headers Move Logitech Harmony 900 from cdc_ether to zaurus hso: memsetting wrong data in hso_get_count() netfilter: ip6_route_output() never returns NULL. ethernet/broadcom: ip6_route_output() never returns NULL. ipv6: ip6_route_output() never returns NULL. jme: Fix FIFO flush issue atm: clip: remove clip_tbl ipv4: ping: Fix recvmsg MSG_OOB error handling. rtnetlink: Fix problem with buffer allocation ...
2012-02-26mlx4_en: dont change mac_header on xmitEric Dumazet1-1/+4
A driver xmit function is not allowed to change skb without special care. mlx4_en_xmit() should not call skb_reset_mac_header() and instead should use skb->data to access ethernet header. This removes a dumb test : if (ethh && ethh->h_dest) Also remove this slow mlx4_en_mac_to_u64() call, we can use get_unaligned() to get faster code. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Cc: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-02-26netfilter: ctnetlink: support kernel-space dump filtering by ctmarkPablo Neira Ayuso1-0/+1
This patch adds CTA_MARK_MASK which, together with CTA_MARK, allows you to selectively send conntrack entries to user-space by returning those that match mark & mask. With this, we can save cycles in the building and the parsing of the entries that may be later on filtered out in user-space by using the ctmark & mask. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-02-26netlink: allow to pass data pointer to netlink_dump_start() callbackPablo Neira Ayuso1-0/+2
This patch allows you to pass a data pointer that can be accessed from the dump callback. Netfilter is going to use this patch to provide filtered dumps to user-space. This is specifically interesting in ctnetlink that may handle lots of conntrack entries. We can save precious cycles by skipping the conversion to TLV format of conntrack entries that are not interesting for user-space. More specifically, ctnetlink will include one operation to allow to filter the dumping of conntrack entries by ctmark values. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-02-26netlink: add netlink_dump_control structure for netlink_dump_start()Pablo Neira Ayuso1-3/+7
Davem considers that the argument list of this interface is getting out of control. This patch tries to address this issue following his proposal: struct netlink_dump_control c = { .dump = dump, .done = done, ... }; netlink_dump_start(..., &c); Suggested by David S. Miller. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-02-26Fix autofs compile without CONFIG_COMPATLinus Torvalds1-0/+4
The autofs compat handling fix caused a compile failure when CONFIG_COMPAT isn't defined. Instead of adding random #ifdef'fery in autofs, let's just make the compat helpers earlier to use: without CONFIG_COMPAT, is_compat_task() just hardcodes to zero. We could probably do something similar for a number of other cases where we have #ifdef's in code, but this is the low-hanging fruit. Reported-and-tested-by: Andreas Schwab <schwab@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-02-26mlx4: Enforce device max FMR maps in FMR allocEli Cohen1-0/+1
ConnectX devices have a limit on the number of mappings that can be done on an FMR before having to call sync_tpt. The current mlx4_ib driver reports the limit correctly in max_map_per_fmr in .query_device(), but mlx4_core doesn't check it when actually allocating FMRs. Add a max_fmr_maps field to struct mlx4_caps and enforce this maximum value on FMR allocations. Signed-off-by: Eli Cohen <eli@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-02-25PCI: Add class support in quirk handlingYinghai Lu1-11/+52
Recently added support to allow quirks to report duration also make the boot log very crowded when initcall_debug is specified. One thing we can to do mitigate this is to not call quirks unnecessarily by adding a new quirk declaration macro that takes a class argument. The new macro takes a class value and a class shift value (since it can vary) so that quirks will be limited to certain device classes, greatly reducing the number we call on every PCI device addition. -v2: fix v1 that left over of sparated patch. -v3: according to Jesse, change cls to class, cls_shift, to class_shift. Signed-off-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2012-02-25vt: lock the accent tableAlan Cox1-0/+3
First step to debletcherising the vt console layer - pick a victim and fix the locking This is a nice simple object with its own rules so lets pick it out for treatment. The user of the table already has a lock so we will also use the same lock for updates. Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-25misc: at24: describe platform_data with kernel_docWolfram Sang1-6/+29
There have been questions about its fields lately, so describe them properly. Reported-by: Yegor Yefremov <yegorslists@googlemail.com> Signed-off-by: Wolfram Sang <wolfram@the-dreams.de>
2012-02-25USB: serial: remove usb_serial_register and usb_serial_deregisterGreg Kroah-Hartman1-7/+0
No one uses them anymore, they should be using the safer usb_serial_register_drivers() and usb_serial_deregister_drivers() functions instead. Thanks to Alan Stern for writing these functions and porting all in-kernel users to them. Cc: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-25usb-serial: new API for driver registrationAlan Stern1-0/+9
This patch (as1522) adds two new routines to the usb-serial core, for registering and unregistering serial drivers. Instead of registering the usb_driver and usb_serial_drivers separately, with error checking for each one, the drivers can all be registered and unregistered by a single function call. This reduces duplicated code. More importantly, the new core routines change the order in which the drivers are registered. Currently the usb-serial drivers are all registered first and the usb_driver is done last, which leaves a window for problems. A udev script may quickly add a new dynamic-ID for a usb-serial driver, causing the corresponding usb_driver to be probed. If the usb_driver hasn't been registered yet then an oops will occur. The new routine prevents such problems by registering the usb_driver first. To insure that it gets probed properly for already-attached serial devices, we call driver_attach() after all the usb-serial drivers have been registered. Along with adding the new routines, the patch modifies the "generic" serial driver to use them. Further patches will similarly modify all the other in-tree USB serial drivers. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-24epoll: introduce POLLFREE to flush ->signalfd_wqh before kfree()Oleg Nesterov1-1/+4
This patch is intentionally incomplete to simplify the review. It ignores ep_unregister_pollwait() which plays with the same wqh. See the next change. epoll assumes that the EPOLL_CTL_ADD'ed file controls everything f_op->poll() needs. In particular it assumes that the wait queue can't go away until eventpoll_release(). This is not true in case of signalfd, the task which does EPOLL_CTL_ADD uses its ->sighand which is not connected to the file. This patch adds the special event, POLLFREE, currently only for epoll. It expects that init_poll_funcptr()'ed hook should do the necessary cleanup. Perhaps it should be defined as EPOLLFREE in eventpoll. __cleanup_sighand() is changed to do wake_up_poll(POLLFREE) if ->signalfd_wqh is not empty, we add the new signalfd_cleanup() helper. ep_poll_callback(POLLFREE) simply does list_del_init(task_list). This make this poll entry inconsistent, but we don't care. If you share epoll fd which contains our sigfd with another process you should blame yourself. signalfd is "really special". I simply do not know how we can define the "right" semantics if it used with epoll. The main problem is, epoll calls signalfd_poll() once to establish the connection with the wait queue, after that signalfd_poll(NULL) returns the different/inconsistent results depending on who does EPOLL_CTL_MOD/signalfd_read/etc. IOW: apart from sigmask, signalfd has nothing to do with the file, it works with the current thread. In short: this patch is the hack which tries to fix the symptoms. It also assumes that nobody can take tasklist_lock under epoll locks, this seems to be true. Note: - we do not have wake_up_all_poll() but wake_up_poll() is fine, poll/epoll doesn't use WQ_FLAG_EXCLUSIVE. - signalfd_cleanup() uses POLLHUP along with POLLFREE, we need a couple of simple changes in eventpoll.c to make sure it can't be "lost". Reported-by: Maxime Bizon <mbizon@freebox.fr> Cc: <stable@kernel.org> Signed-off-by: Oleg Nesterov <oleg@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-02-24regmap: Allow drivers to sync only part of the register cacheMark Brown1-0/+2
Provide a regcache_sync_region() operation which allows drivers to write only part of the cache back to the hardware. This is intended for use in cases like power domains or DSP memories where part of the device register map may be reset without fully resetting the device. Fully supporting these devices is likely to require additional work to make specific regions of the register map cache only while they are in reset, but this is enough for most devices. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-02-24Merge branch 'vexpress-dt-v3.3-rc4' of ↵Arnd Bergmann21-27/+88
git://git.linaro.org/people/pawelmoll/linux into next/dt * 'vexpress-dt-v3.3-rc4' of git://git.linaro.org/people/pawelmoll/linux: (573 commits) ARM: vexpress: Add Device Tree for V2P-CA15 core tile (TC1 variant) ARM: vexpress: Add Device Tree for V2P-CA9 core tile ARM: vexpress: Add Device Tree for V2P-CA5s core tile ARM: vexpress: Motherboard RS1 memory map support ARM: vexpress: Add Device Tree support ARM: vexpress: Use FDT data in platform SMP calls ARM: versatile: Map local timers using Device Tree when possible ARM: vexpress: Get rid of MMIO_P2V This adds full device tree boot support for the versatile express platform, as has been awaited for a long time. Conflicts: arch/arm/mach-vexpress/core.h The definition of AMBA_DEVICE was removed in one branch, and the definition of MMIO_P2V was removed in the other branch. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2012-02-24net: Support RX-ALL feature flag.Ben Greear1-0/+2
This flag requests that network devices pass all received frames up the stack, even ones with errors such as invalid FCS (frame check sum). This will allow sniffers to see bad packets and perhaps give the user some idea how to fix the problem. Signed-off-by: Ben Greear <greearb@candelatech.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-02-24net: Add framework to allow sending packets with customized CRC.Ben Greear3-2/+12
This is useful for testing RX handling of frames with bad CRCs. Requires driver support to actually put the packet on the wire properly. Signed-off-by: Ben Greear <greearb@candelatech.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-02-24net: Support RXFCS feature flag.Ben Greear1-0/+2
When set on hardware that supports the feature, this causes the Ethernet FCS to be appended to the end of the skb. Useful for sniffing packets. Signed-off-by: Ben Greear <greearb@candelatech.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-02-24static keys: Introduce 'struct static_key', static_key_true()/false() and ↵Ingo Molnar6-54/+116
static_key_slow_[inc|dec]() So here's a boot tested patch on top of Jason's series that does all the cleanups I talked about and turns jump labels into a more intuitive to use facility. It should also address the various misconceptions and confusions that surround jump labels. Typical usage scenarios: #include <linux/static_key.h> struct static_key key = STATIC_KEY_INIT_TRUE; if (static_key_false(&key)) do unlikely code else do likely code Or: if (static_key_true(&key)) do likely code else do unlikely code The static key is modified via: static_key_slow_inc(&key); ... static_key_slow_dec(&key); The 'slow' prefix makes it abundantly clear that this is an expensive operation. I've updated all in-kernel code to use this everywhere. Note that I (intentionally) have not pushed through the rename blindly through to the lowest levels: the actual jump-label patching arch facility should be named like that, so we want to decouple jump labels from the static-key facility a bit. On non-jump-label enabled architectures static keys default to likely()/unlikely() branches. Signed-off-by: Ingo Molnar <mingo@elte.hu> Acked-by: Jason Baron <jbaron@redhat.com> Acked-by: Steven Rostedt <rostedt@goodmis.org> Cc: a.p.zijlstra@chello.nl Cc: mathieu.desnoyers@efficios.com Cc: davem@davemloft.net Cc: ddaney.cavm@gmail.com Cc: Linus Torvalds <torvalds@linux-foundation.org> Link: http://lkml.kernel.org/r/20120222085809.GA26397@elte.hu Signed-off-by: Ingo Molnar <mingo@elte.hu>
2012-02-24pinctrl: disallow map table entries with NULL dev_name fieldStephen Warren1-7/+0
Hog entries are mapping table entries with .ctrl_dev_name == .dev_name. All other mapping table entries need .dev_name set so that they will match some pinctrl_get() call. All extant PIN_MAP*() macros set .dev_name. So, there is no reason to allow mapping table entries without .dev_name set. Update the code and documentation to disallow this. Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-by: Dong Aisheng <dong.aisheng@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-02-24PCI: add generic pcibios_resource_to_bus()Bjorn Helgaas1-0/+4
This replaces the generic versions of pcibios_resource_to_bus() and pcibios_bus_to_resource() in asm-generic/pci.h with versions that use pci_resource_to_bus() and pci_bus_to_resource(). The replacements are equivalent except that they can apply host bridge window offsets when the arch has supplied them by using pci_add_resource_offset(). Each arch can convert to using pci_add_resource_offset() individually by removing its device resource fixups from pcibios_fixup_bus() and supplying ARCH_HAS_GENERIC_PCI_OFFSETS. ARCH_HAS_GENERIC_PCI_OFFSETS can be removed after all have converted. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2012-02-24PCI: add struct pci_host_bridge_window with CPU/bus address offsetBjorn Helgaas1-0/+9
Some PCI host bridges apply an address offset, so bus addresses on PCI are different from CPU addresses. This patch adds a way for architectures to tell the PCI core about this offset. For example: LIST_HEAD(resources); pci_add_resource_offset(&resources, host->io_space, host->io_offset); pci_add_resource_offset(&resources, host->mem_space, host->mem_offset); pci_scan_root_bus(parent, bus, ops, sysdata, &resources); Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2012-02-24PCI: add struct pci_host_bridge and a list of all bridges foundBjorn Helgaas1-0/+5
This adds a list of all PCI host bridges we find and a way to look up the host bridge from a pci_dev. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2012-02-24x86, efi: Allow basic init with mixed 32/64-bit efi/kernelOlof Johansson1-0/+45
Traditionally the kernel has refused to setup EFI at all if there's been a mismatch in 32/64-bit mode between EFI and the kernel. On some platforms that boot natively through EFI (Chrome OS being one), we still need to get at least some of the static data such as memory configuration out of EFI. Runtime services aren't as critical, and it's a significant amount of work to implement switching between the operating modes to call between kernel and firmware for thise cases. So I'm ignoring it for now. v5: * Fixed some printk strings based on feedback * Renamed 32/64-bit specific types to not have _ prefix * Fixed bug in printout of efi runtime disablement v4: * Some of the earlier cleanup was accidentally reverted by this patch, fixed. * Reworded some messages to not have to line wrap printk strings v3: * Reorganized to a series of patches to make it easier to review, and do some of the cleanups I had left out before. v2: * Added graceful error handling for 32-bit kernel that gets passed EFI data above 4GB. * Removed some warnings that were missed in first version. Signed-off-by: Olof Johansson <olof@lixom.net> Link: http://lkml.kernel.org/r/1329081869-20779-6-git-send-email-olof@lixom.net Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2012-02-24Merge branch 'fbdev-for-linus' into fbdev-nextFlorian Tobias Schandinat42-380/+177
2012-02-24ARM: 7339/1: amba/serial.h: Include types.h for resolving dependency of type ↵viresh kumar1-0/+2
bool serial.h uses bool, but its definition is missing, as it doesn't include types.h. Fix this by including types.h Signed-off-by: Viresh Kumar <viresh.kumar@st.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-02-24ipsec: be careful of non existing mac headersEric Dumazet1-0/+10
Niccolo Belli reported ipsec crashes in case we handle a frame without mac header (atm in his case) Before copying mac header, better make sure it is present. Bugzilla reference: https://bugzilla.kernel.org/show_bug.cgi?id=42809 Reported-by: Niccolò Belli <darkbasic@linuxsystems.it> Tested-by: Niccolò Belli <darkbasic@linuxsystems.it> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-02-24PCI: move pci_find_saved_cap out of linux/pci.hYinghai Lu1-19/+0
Only one user in driver/pci/pci.c, so we don't need to put it in global pci.h Reviewed-by: Bjorn Helgaas <bhelgaas@google.com> Signed-off-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2012-02-24PCI: Add PCI_EXP_TYPE_PCIE_BRIDGE valueAnthony PERARD1-0/+1
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2012-02-23Merge branch 'usb-3.3-rc4' into usb-nextGreg Kroah-Hartman5-0/+99
This is to pull in the xhci changes and the other fixes and device id updates that were done in Linus's tree. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-23Merge tag 'rpmsg-for-3.4' of ↵Arnd Bergmann4-0/+607
git://git.kernel.org/pub/scm/linux/kernel/git/ohad/remoteproc into next/rpmsg * tag 'rpmsg-for-3.4' of git://git.kernel.org/pub/scm/linux/kernel/git/ohad/remoteproc: remoteproc: s/big switch/lookup table/ remoteproc: bail out if firmware has different endianess remoteproc: don't use virtio's weak barriers rpmsg: rename virtqueue_add_buf_gfp to virtqueue_add_buf rpmsg: depend on EXPERIMENTAL remoteproc: depend on EXPERIMENTAL rpmsg: add Kconfig menu remoteproc: add Kconfig menu remoteproc: look for truncated firmware images remoteproc/omap: utilize module_platform_driver remoteproc: remove unused resource type remoteproc: avoid registering a virtio device if not supported remoteproc: do not require an iommu samples/rpmsg: add an rpmsg driver sample rpmsg: add virtio-based remote processor messaging bus remoteproc/omap: add a remoteproc driver for OMAP4 remoteproc: create rpmsg virtio device remoteproc: add debugfs entries remoteproc: add framework for controlling remote processors
2012-02-23OMAP1: pass LCD config with omapfb_set_lcd_config()Tomi Valkeinen1-0/+2
LCD config for old omapfb driver is passed with OMAP_TAG_LCD from board files or from the bootloader. In an effort to remove OMAP_TAG_LCD, this patch adds omapfb_set_lcd_config() function that the board files can call to set the LCD config. This has the drawback that configuration can no longer come from the bootloader. Of the boards supported by the kernel, this should only affect N770 which depends on the data from the bootloader. This patch adds an LCD config for N770 to its board files, but that is most probably broken. Fixing this would need information about the HW setup in N770 boards. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Acked-by: Tony Lindgren <tony@atomide.com>
2012-02-23OMAPFB: remove omapfb_set_platform_data()Tomi Valkeinen1-3/+0
omapfb_set_platform_data() is no longer used, so remove it. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Acked-by: Tony Lindgren <tony@atomide.com>
2012-02-23OMAPFB: Move old omapfb private structs to a private include fileTomi Valkeinen1-25/+0
include/linux/omapfb.h contains structs that are used only by the omapfb driver. Move the structs into drivers/video/omap/omapfb.h. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2012-02-23OMAPFB: remove mem info from platform_dataTomi Valkeinen1-1/+0
omapfb driver used platform_data to get fb memory areas and formats defined by the board file. This patch removes omapfb's (both old and new omapfb) use of the memory data in platform_data, because: - No board uses them currently - It's not board file's job to define things like amount of default framebuffer memory. These should come from the bootloader via command line parameters. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2012-02-23OMAPFB: remove early mem alloc from old omapfbTomi Valkeinen1-1/+0
arch/arm/plat-omap/fb.c contains code to alloc omapfb buffers at early boot time according to information given from the bootloader or board file. This code isn't currently used by any board, and is anyway something that the newer vram.c could handle. So remove the alloc code and in later patches make old omapfb driver use vram.c. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Acked-by: Tony Lindgren <tony@atomide.com>
2012-02-23OAMPFB: remove unused omapfb_set_ctrl_platform_data()Tomi Valkeinen1-2/+0
omapfb_set_ctrl_platform_data() is no longer used, so it can be removed. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Acked-by: Tony Lindgren <tony@atomide.com>