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2012-05-21Merge branch 'for-linus' of git://git.linaro.org/people/rmk/linux-armLinus Torvalds
Pull core ARM updates from Russell King: "This is the bulk of the core ARM updates for this merge window. Included in here is a different way to handle the VIVT cache flushing on context switch, which should allow scheduler folk to remove a special case in their core code. We have architectured timer support here, which is a set of timers specified by the ARM architecture for future SoCs. So we should see less variability in timer design going forward. The last big thing here is my cleanup to the way we handle PCI across ARM, fixing some oddities in some platforms which hadn't realised there was a way to deal with their private data already built in to our PCI backend. I've also removed support for the ARMv3 architecture; it hasn't worked properly for years so it seems pointless to keep it around." * 'for-linus' of git://git.linaro.org/people/rmk/linux-arm: (47 commits) ARM: PCI: remove per-pci_hw list of buses ARM: PCI: dove/kirkwood/mv78xx0: use sys->private_data ARM: PCI: provide a default bus scan implementation ARM: PCI: get rid of pci_std_swizzle() ARM: PCI: versatile: fix PCI interrupt setup ARM: PCI: integrator: use common PCI swizzle ARM: 7416/1: LPAE: Remove unused L_PTE_(BUFFERABLE|CACHEABLE) macros ARM: 7415/1: vfp: convert printk's to pr_*'s ARM: decompressor: avoid speculative prefetch from non-RAM areas ARM: Remove ARMv3 support from decompressor ARM: 7413/1: move read_{boot,persistent}_clock to the architecture level ARM: Remove support for ARMv3 ARM610 and ARM710 CPUs ARM: 7363/1: DEBUG_LL: limit early mapping to the minimum ARM: 7391/1: versatile: add some auxdata for device trees ARM: 7389/2: plat-versatile: modernize FPGA IRQ controller AMBA: get rid of last two uses of NO_IRQ ARM: 7408/1: cacheflush: return error to userspace when flushing syscall fails ARM: 7409/1: Do not call flush_cache_user_range with mmap_sem held ARM: 7404/1: cmpxchg64: use atomic64 and local64 routines for cmpxchg64 ARM: 7347/1: SCU: use cpu_logical_map for per-CPU low power mode ...
2012-05-21Merge branch 'clkdev' of git://git.linaro.org/people/rmk/linux-armLinus Torvalds
Pull clkdev updates from Russell King: "This supplements clkdev with a device-managed API, allowing drivers cleanup paths to be simplified. We also optimize clk_find() so that it exits as soon as it finds a perfect match, and we provide a way to minimise the amount of code platforms need to register clkdev entries. Some of the code in arm-soc depends on these changes." * 'clkdev' of git://git.linaro.org/people/rmk/linux-arm: CLKDEV: provide helpers for common clock framework ARM: 7392/1: CLKDEV: Optimize clk_find() ARM: 7376/1: clkdev: Implement managed clk_get()
2012-05-21timers: Fixup the Kconfig consolidation falloutThomas Gleixner
Sigh, I missed to check which architecture Kconfig files actually include the core Kconfig file. There are a few which did not. So we broke them. Instead of adding the includes to those, we are better off to move the include to init/Kconfig like we did already with irqs and others. This does not change anything for the architectures using the old style periodic timer mode. It just solves the build wreckage there. For those architectures which use the clock events infrastructure it moves the include of the core Kconfig file to "General setup" which is a way more logical place than having it at random locations specified by the architecture specific Kconfigs. Reported-by: Ingo Molnar <mingo@kernel.org> Cc: Anna-Maria Gleixner <anna-maria@glx-um.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2012-05-21Merge branch 'for-um' of ↵Richard Weinberger
git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal into for-3.5
2012-05-21ktest: Add MIN_CONFIG_TYPE to allow making a minum .config that has networkSteven Rostedt
Add a MIN_CONFIG_TYPE that can be set to 'test' or 'boot'. The default is 'boot' which is what make_min_config has done previously: makes a config file that is the minimum needed to boot the target. But when MIN_CONFIG_TYPE is set to 'test', not only must the target boot, but it must also successfully run the TEST. This allows the creation of a config file that is the minimum to boot and also perform ssh to the target, or anything else a developer wants. Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2012-05-21um: missing checks of __put_user()/__get_user() return valuesAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-05-21um: stub_rt_sigsuspend isn't needed these days anymoreAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-05-21um/x86: merge (and trim) 32- and 64-bit variants of ptrace.hAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-05-21Fix blocking allocations called very early during bootupLinus Torvalds
During early boot, when the scheduler hasn't really been fully set up, we really can't do blocking allocations because with certain (dubious) configurations the "might_resched()" calls can actually result in scheduling events. We could just make such users always use GFP_ATOMIC, but quite often the code that does the allocation isn't really aware of the fact that the scheduler isn't up yet, and forcing that kind of random knowledge on the initialization code is just annoying and not good for anybody. And we actually have a the 'gfp_allowed_mask' exactly for this reason: it's just that the kernel init sequence happens to set it to allow blocking allocations much too early. So move the 'gfp_allowed_mask' initialization from 'start_kernel()' (which is some of the earliest init code, and runs with preemption disabled for good reasons) into 'kernel_init()'. kernel_init() is run in the newly created thread that will become the 'init' process, as opposed to the early startup code that runs within the context of what will be the first idle thread. So by the time we reach 'kernel_init()', we know that the scheduler must be at least limping along, because we've already scheduled from the idle thread into the init thread. Reported-by: Steven Rostedt <rostedt@goodmis.org> Cc: David Rientjes <rientjes@google.com> Cc: stable@vger.kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-05-21net: drop NET dependency from HAVE_BPF_JITSam Ravnborg
There is no point having the NET dependency on the select target, as it forces all users to depend on NET to tell they support BPF_JIT. Move the config option to the bottom of the file - this could be a nice place also for future "selectable" config symbols. Fix up all users to drop the dependency on NET now that it is not required to supress warnings for non-NET builds. Reported-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Acked-by: David Miller <davem@davemloft.net> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-05-21firewire: sbp2: document the absence of alignment requirementsClemens Ladisch
The SBP-2/3 specifications do not require any alignment of data buffers; only their own data structures need to be quadlet-aligned [SR: or octlet-aligned]. Fix the comments to reflect this, but leave the actual alignment at 32 bits to avoid theoretical problems with target implementations that might handle this incorrectly. Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2012-05-21Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/lliubbo/blackfin Pull blackfin changes from Bob Liu: "The biggest change was added an new processor(bf60x series). Bf60x series processor of blackfin can up to 1GHz with Hardware Support for HD Video Analytics, it use the same blackfin ISA but with some changes on system buses, interrupt controller and peripheral devices. Added dir arch/blackfin/mach-bf609/ and did some changes to the framework made linux working fine on the reference board bf609-ezkit now." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lliubbo/blackfin: (41 commits) blackfin: fix build after add bf60x mach/pm.h blackfin: twi: include linux/i2c.h blackfin: bf60x: add head file for crc controller blackfin: bf60x: twi: work around temporary anomaly 0501001 blackfin: twi: Move TWI MMR access macro to twi head file blackfin: twi: Move TWI peripheral pin request array to platform data blackfin: bf60x: anomaly: Add a temporary anomaly 0501001 blackfin: bf60x: Rename the DDR controller macro blackfin: mach-bf609: pm: cleanup bfin_deepsleep blackfin: bf60x: cleanup get clock code blackfin: bf60x: pm: Add a debug option to calculate kernel wakeup time. blackfin: bf60x: add wakeup source select blackfin: bf60x: make clock changeable in kernel menuconfig blackfin:mach-bf609: fix norflash for bf609-ezkit blackfin: mach-bf609: add can_wakeup to ethernet device blackfin: remove redundant CONFIG_BF60x macro blackfin: rotary: Add pm_wakeup flag to platform data structure. bfin_gpio: fix bf548-ezkit kernel fail to boot bfin_dma: fix initcall return error in proc_dma_init() Blackfin: delete fork func ...
2012-05-21Merge tag 'for-linus' of git://linux-c6x.org/git/projects/linux-c6x-upstreamingLinus Torvalds
Pull c6x updates from Mark Salter: "Clean up some c6x Kconfig items and add support for Elf FDPIC loader." * tag 'for-linus' of git://linux-c6x.org/git/projects/linux-c6x-upstreaming: C6X: remove unused config items C6X: add support to build with BINFMT_ELF_FDPIC C6X: change main arch kbuild symbol
2012-05-21Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k Pull m68k updates from Geert Uytterhoeven. * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k: m68k: Setup CROSS_COMPILE at the top m68k: Correct the Atari ALLOWINT definition m68k/video: Create <asm/vga.h> m68k: Make sure {read,write}s[bwl]() are always defined m68k/mm: Port OOM changes to do_page_fault() scsi/atari: Make more functions static scsi/atari: Revive "atascsi=" setup option net/ariadne: Improve debug prints m68k/atari: Change VME irq numbers from unsigned long to unsigned int m68k/amiga: Use arch_initcall() for registering platform devices m68k/amiga: Add error checks when registering platform devices m68k/amiga: Mark z_dev_present() __init m68k: Remove unused MAX_NOINT_IPL definition
2012-05-21firewire: sbp2: remove superfluous blk_queue_max_segment_size() callClemens Ladisch
The SCSI framework automatically initializes the block queue's segment size with the DMA device's segment size. Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2012-05-21firewire: sbp2: use scsi_dma_(un)mapClemens Ladisch
Use the scsi_dma_map/scsi_dma_unmap helper to simplify the code a little. Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2012-05-21firewire: sbp2: give correct DMA device to scsi frameworkClemens Ladisch
The sbp2 driver does DMA not on the unit but on the card device. The driver worked even with the wrong device because at the moment, it happens to reimplement the DMA functions of the SCSI framework. Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2012-05-21Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux Pull s390 updates from Martin Schwidefsky: "Just a random collection of bug-fixes and cleanups, nothing new in this merge request." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (46 commits) s390/ap: Fix wrong or missing comments s390/ap: move receive callback to message struct s390/dasd: re-prioritize partition detection message s390/qeth: reshuffle initialization s390/qeth: cleanup drv attr usage s390/claw: cleanup drv attr usage s390/lcs: cleanup drv attr usage s390/ctc: cleanup drv attr usage s390/ccwgroup: remove ccwgroup_create_from_string s390/qeth: stop using struct ccwgroup driver for discipline callbacks s390/qeth: switch to ccwgroup_create_dev s390/claw: switch to ccwgroup_create_dev s390/lcs: switch to ccwgroup_create_dev s390/ctcm: switch to ccwgroup_create_dev s390/ccwgroup: exploit ccwdev_by_dev_id s390/ccwgroup: introduce ccwgroup_create_dev s390: fix race on TIF_MCCK_PENDING s390/barrier: make use of fast-bcr facility s390/barrier: cleanup barrier functions s390/claw: remove "eieio" calls ...
2012-05-21Merge tag 'v3.4' with SCSI updates, needed for subsequent firewire-sbp2 changesStefan Richter
Linux 3.4
2012-05-21x86, relocs: Build clean fixJarkko Sakkinen
relocs was not cleaned up when "make clean" is issued. This patch fixes the issue. Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@intel.com> Link: http://lkml.kernel.org/r/1337622684-6834-1-git-send-email-jarkko.sakkinen@intel.com Signed-off-by: H. Peter Anvin <hpa@zytor.com> Cc: <stable@vger.kernel.org> v3.4
2012-05-21Merge commit 'v3.4' into x86/urgentH. Peter Anvin
2012-05-21irq: Remove irq_chip->release()Richard Weinberger
As it's only user (UML) does no longer need it we can get rid of it. Signed-off-by: Richard Weinberger <richard@nod.at> Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
2012-05-21um: Remove CONFIG_IRQ_RELEASE_METHODRichard Weinberger
UML does no longer need CONFIG_IRQ_RELEASE_METHOD. Signed-off-by: Richard Weinberger <richard@nod.at> Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
2012-05-21um: Remove usage of irq_chip->release()Richard Weinberger
UML does no longer need irq_chip->release(). Signed-off-by: Richard Weinberger <richard@nod.at> Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
2012-05-21um: Implement um_free_irq()Richard Weinberger
Instead of using chip->release() we can achieve the same using a simple wrapper for free_irq(). We have already um_request_irq(), so um_free_irq() is the perfect counterpart. Signed-off-by: Richard Weinberger <richard@nod.at> Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
2012-05-21um: Fix __swp_type()Richard Weinberger
The current __swp_type() function uses a too small bitshift. Using more than one swap files causes bad pages because the type bits clash with other page flags. CC: stable@kernel.org Analyzed-by: Hugh Dickins <hughd@google.com> Signed-off-by: Richard Weinberger <richard@nod.at>
2012-05-21um: Implement a custom pte_same() functionRichard Weinberger
UML uses the _PAGE_NEWPAGE flag to mark pages which are not jet installed on the host side using mmap(). pte_same() has to ignore this flag, otherwise unuse_pte_range() is unable to unuse the page because two identical page tables entries with different _PAGE_NEWPAGE flags would not match and swapoff() would never return. CC: stable@kernel.org Analyzed-by: Hugh Dickins <hughd@google.com> Signed-off-by: Richard Weinberger <richard@nod.at>
2012-05-21um: Add BUG() to do_ops()'s error pathRichard Weinberger
In case we encounter a bad operation in do_ops() something is really broken and it's better to BUG(). Signed-off-by: Richard Weinberger <richard@nod.at>
2012-05-21um: Remove unused variablesRichard Weinberger
Signed-off-by: Richard Weinberger <richard@nod.at>
2012-05-21drm/i915: be more careful when returning -ENXIO in gmbus transferDaniel Vetter
... flaky ddc hardware can cause a spurious NAK, resulting in the i2c core and drm edid functions not trying to retry the edid transfer. Luckily the gmbus quiescenting also times out for these cases, so we can get out of this mess by returning -ETIMEDOUT for this specific case. This way we keep the fast-fail of returning -ENXIO if there is no device present, speeding up the boot process. This regression has been introduced in commit e646d5773572bf52017983d758bdf05777dc5600 Author: Daniel Kurtz <djkurtz@chromium.org> Date: Fri Mar 30 19:46:38 2012 +0800 drm/i915/intel_i2c: always wait for IDLE before clearing NAK v2: Return -ETIMEDOUT for this case and keep the -ENXIO for real NAKs, suggested by Daniel Kurtz. Cc: Daniel Kurtz <djkurtz@chromium.org> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=49518 Reported-and-Tested-by: Julian Simioni <julian.simioni@gmail.com> Acked-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Daniel Kurtz <djkurtz@chromium.org> Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-05-21arm: don't open-code ptrace_report_syscall()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-05-21arm: bury unused _TIF_RESTORE_SIGMASKAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-05-21arm: remove unused restart trampolineAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-05-21arm: new way of handling ERESTART_RESTARTBLOCKAl Viro
new "syscall start" flag; handled in syscall_trace() by switching syscall number to that of syscall_restart(2). Restarts of that kind (ERESTART_RESTARTBLOCK) are handled by setting that bit; syscall number is not modified until the actual call. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-05-21arm: if we get into work_pending while returning to kernel mode, just go awayAl Viro
checking in do_signal() is pointless - if we get there with !user_mode(regs) (and we might), we'll end up looping indefinitely. Check in work_pending and break out of the loop if so. Acked-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-05-21arm: don't call try_to_freeze() from do_signal()Al Viro
get_signal_to_deliver() will handle it itself Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-05-21arm: if there's no handler we need to restore sigmask, syscall or no syscallAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-05-21arm: trim _TIF_WORK_MASK, get rid of useless test and branch...Al Viro
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-05-21arm: missing checks of __get_user()/__put_user() return valuesAl Viro
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-05-21um: bury unused _TIF_RESTORE_SIGMASKAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-05-21um: wrong sigmask saved in case of multiple sigframesAl Viro
we can't just find oldmask once; if there are multiple signals and we loop building sigframes for those, ->saved_mask will be definitely wrong for all but the first one. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-05-21um: add TIF_NOTIFY_RESUMEAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-05-21um: ->restart_block.fn needs to be reset on sigreturnAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-05-21xen: do not map the same GSI twice in PVHVM guests.Stefano Stabellini
PV on HVM guests map GSIs into event channels. At restore time the event channels are resumed by restore_pirqs. Device drivers might try to register the same GSI again through ACPI at restore time, but the GSI has already been mapped and bound by restore_pirqs. This patch detects these situations and avoids mapping the same GSI multiple times. Without this patch we get: (XEN) irq.c:2235: dom4: pirq 23 or emuirq 28 already mapped and waste a pirq. CC: stable@kernel.org Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2012-05-21Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-nextLinus Torvalds
Pull sparc updates from David Miller: 1) Kill off support for sun4c and Cypress sun4m chips. And as a result we were able to also kill off that ugly btfixup thing that required multi-stage links of the final vmlinux image in the Kbuild system. This should make the kbuild maintainers really happy. Thanks a lot to Sam Ravnborg for his tireless efforts to get this going. 2) Convert sparc64 to nobootmem. I suspect now with sparc32 being a lot cleaner, it should be able to fall in line and modernize in this area too. 3) Make sparc32 use generic clockevents, from Tkhai Kirill. [ I fixed up the BPF rules, and tried to clean up the build rules too. But I don't have - or want - a sparc cross-build environment, so the BPF rule bug and the related build cleanup was all done with just a bare "make -n" pseudo-test. - Linus ] * git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next: (110 commits) sparc32: use flushi when run-time patching in per_cpu_patch sparc32: fix cpuid_patch run-time patching sparc32: drop unused inline functions in srmmu.c sparc32: drop unused functions in pgtsrmmu.h sparc32,leon: move leon mmu functions to leon_mm.c sparc32,leon: remove duplicate definitions in leon.h sparc32,leon: remove duplicate UART register definitions sparc32,leon: move leon ASI definitions to asi.h sparc32: move trap table to a separate file sparc64: renamed ttable.S to ttable_64.S sparc32: Remove asm/sysen.h header. sparc32: Delete asm/smpprim.h sparc32: Remove unused empty_bad_page{,_table} declarations. sparc32: Kill boot_cpu_id4 sparc32: Move GET_PROCESSOR*_ID() out of asm/asmmacro.h sparc32: Remove completely unused code from asm/cache.h sparc32: Add ucmpdi2.o to obj-y instead of lib-y. sparc32: add ucmpdi2 sparc: introduce arch/sparc/Kbuild sparc: remove obsolete documentation ...
2012-05-21x86, printk: Add missing KERN_CONT to NMI selftestSasha Levin
Fix this behaviour: ---------------- | NMI testsuite: -------------------- remote IPI: ok | local IPI: ok | Revealed due to a new modification to printk(). Signed-off-by: Sasha Levin <levinsasha928@gmail.com> Link: http://lkml.kernel.org/r/1336492573-17530-3-git-send-email-levinsasha928@gmail.com Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2012-05-21Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-nextLinus Torvalds
Pull networking changes from David Miller: 1) Get rid of the error prone NLA_PUT*() macros that used an embedded goto. 2) Kill off the token-ring and MCA networking drivers, from Paul Gortmaker. 3) Reduce high-order allocations made by datagram AF_UNIX sockets, from Eric Dumazet. 4) Add PTP hardware clock support to IGB and IXGBE, from Richard Cochran and Jacob Keller. 5) Allow users to query timestamping capabilities of a card via ethtool, from Richard Cochran. 6) Add loadbalance mode to the teaming driver, from Jiri Pirko. Part of this is that we can now have BPF filters not attached to sockets, and the loadbalancing function is calculated using one. 7) Francois Romieu went through the network drivers removing gratuitous uses of netdev->base_addr, perhaps some day we can remove it completely but it's used for ISA probing still. 8) Add a BPF JIT for sparc. I know, who cares, right? :-) 9) Move networking sysctl registry away from using the compatability mode interfaces in the sysctl code. From Eric W Biederman. 10) Pavel Emelyanov added a way to save and restore TCP socket state via TCP_REPAIR, TCP_REPAIR_QUEUE, and TCP_QUEUE_SEQ socket options as well as a way to forcefully bind a socket to a port via the sk->sk_reuse value SK_FORCE_REUSE. There is also a TCP_REPAIR_OPTIONS which allows to reinstante the TCP options enabled on the connection. 11) Several enhancements from Eric Dumazet that, in particular, can enhance splice performance on TCP sockets significantly. a) Reset the offset of the per-socket sendmsg page when we know we're the only use of the page in linear_to_page(). b) Add facilities such that skb->data can be backed a page rather than SLAB kmalloc'd memory. In particular devices which were receiving into linear RX buffers can now end up providing paged data. The big result is that code like splice and GRO do not have to copy any more. 12) Allow a pure sender to more gracefully handle ACK backlogs in TCP. What can happen at high rates is that the sender hasn't grown his receive buffer limits at all (he's not receiving data so really doesn't need to), but the non-data ACKs consume receive buffer space. sk_add_backlog() is too aggressive in dropping frames in this case, so relax it's requirements by using the receive buffer plus the send buffer limit as the backlog limit instead of just the former. Also from Eric Dumazet. 13) Add ipv6 support to L2TP, from Benjamin LaHaise, James Chapman, and Chris Elston. 14) Implement TCP early retransmit (RFC 5827), from Yuchung Cheng. Basically, we can start fast retransmit before hiting the dupack threshold under certain conditions. 15) New CODEL active queue management packet scheduler, from Eric Dumazet based upon initial work by Dave Taht. Basically, the big feature is that packets are dropped (or ECN bits are set) based upon how long packets live in the queue, rather than the queue length (which is what RED uses). * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1341 commits) drivers/net/stmmac: seq_file fix memory leak ipv6/exthdrs: strict Pad1 and PadN check USB: qmi_wwan: Add ZTE (Vodafone) K3520-Z USB: qmi_wwan: Add ZTE (Vodafone) K3765-Z USB: qmi_wwan: Make forced int 4 whitelist generic net/ipv4: replace simple_strtoul with kstrtoul net/ipv4/ipconfig: neaten __setup placement net: qmi_wwan: Add Vodafone/Huawei K5005 support net: cdc_ether: Add ZTE WWAN matches before generic Ethernet ipv6: use skb coalescing in reassembly ipv4: use skb coalescing in defragmentation net: introduce skb_try_coalesce() net:ipv6:fixed space issues relating to operators. net:ipv6:fixed a trailing white space issue. ipv6: disable GSO on sockets hitting dst_allfrag tg3: use netdev_alloc_frag() API net: napi_frags_skb() is static ppp: avoid false drop_monitor false positives ipv6: bool/const conversions phase2 ipx: Remove spurious NULL checking in ipx_ioctl(). ...
2012-05-21Merge tag 'for-usb-next-2012-05-21' of ↵Greg Kroah-Hartman
git://git.kernel.org/pub/scm/linux/kernel/git/sarah/xhci into usb-next xhci/usb: Build error fixes for 3.5 Hi Greg, Here's four patches that fix the build errors introduced by the USB 3.0 Link PM patches. Please pull for inclusion in 3.5. Sarah Sharp
2012-05-21Merge branches 'core', 'cxgb4', 'ipath', 'iser', 'lockdep', 'mlx4', 'nes', ↵Roland Dreier
'ocrdma', 'qib' and 'raw-qp' into for-linus
2012-05-21xhci: Fix DIV_ROUND_UP compile error.Sarah Sharp
Fengguang reports that the xHCI driver isn't linked properly on his machine: ERROR: "__udivdi3" [drivers/usb/host/xhci-hcd.ko] undefined! ERROR: "handle_edge_irq" [drivers/gpio/gpio-pch.ko] undefined! ERROR: "irq_to_desc" [drivers/gpio/gpio-pch.ko] undefined! The driver compiles fine on my 64-bit box (gcc version 4.6.1). Fengguang thinks it's because the xHCI driver was using DIV_ROUND_UP() instead of DIV_ROUND_UP_ULL() with arguments that were unsigned long long variables. Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com> Reported-by: Wu Fengguang <wfg@linux.intel.com>