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2012-05-01netem: add ECN capabilityEric Dumazet1-0/+1
Add ECN (Explicit Congestion Notification) marking capability to netem tc qdisc add dev eth0 root netem drop 0.5 ecn Instead of dropping packets, try to ECN mark them. Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Neal Cardwell <ncardwell@google.com> Cc: Tom Herbert <therbert@google.com> Cc: Hagen Paul Pfeifer <hagen@jauu.net> Cc: Stephen Hemminger <shemminger@vyatta.com> Acked-by: Hagen Paul Pfeifer <hagen@jauu.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-01net: skb_peek()/skb_peek_tail() cleanupsEric Dumazet1-8/+12
remove useless casts and rename variables for less confusion. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-01l2tp: introduce L2TPv3 IP encapsulation support for IPv6Chris Elston1-0/+17
L2TPv3 defines an IP encapsulation packet format where data is carried directly over IP (no UDP). The kernel already has support for L2TP IP encapsulation over IPv4 (l2tp_ip). This patch introduces support for L2TP IP encapsulation over IPv6. The implementation is derived from ipv6/raw and ipv4/l2tp_ip. Signed-off-by: Chris Elston <celston@katalix.com> Signed-off-by: James Chapman <jchapman@katalix.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-01l2tp: netlink api for l2tpv3 ipv6 unmanaged tunnelsChris Elston1-0/+2
This patch adds support for unmanaged L2TPv3 tunnels over IPv6 using the netlink API. We already support unmanaged L2TPv3 tunnels over IPv4. A patch to iproute2 to make use of this feature will be submitted separately. Signed-off-by: Chris Elston <celston@katalix.com> Signed-off-by: James Chapman <jchapman@katalix.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-01pppox: Replace __attribute__((packed)) in if_pppox.hJames Chapman1-6/+6
Checkpatch warns about the use of __attribute__((packed)). So use the recommended __packed syntax instead. Signed-off-by: James Chapman <jchapman@katalix.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-01net: make GRO aware of skb->head_fragEric Dumazet2-0/+3
GRO can check if skb to be merged has its skb->head mapped to a page fragment, instead of a kmalloc() area. We 'upgrade' skb->head as a fragment in itself This avoids the frag_list fallback, and permits to build true GRO skb (one sk_buff and up to 16 fragments), using less memory. This reduces number of cache misses when user makes its copy, since a single sk_buff is fetched. This is a followup of patch "net: allow skb->head to be a page fragment" Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: Maciej Żenczykowski <maze@google.com> Cc: Neal Cardwell <ncardwell@google.com> Cc: Tom Herbert <therbert@google.com> Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Cc: Ben Hutchings <bhutchings@solarflare.com> Cc: Matt Carlson <mcarlson@broadcom.com> Cc: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-01net: allow skb->head to be a page fragmentEric Dumazet1-2/+3
skb->head is currently allocated from kmalloc(). This is convenient but has the drawback the data cannot be converted to a page fragment if needed. We have three spots were it hurts : 1) GRO aggregation When a linear skb must be appended to another skb, GRO uses the frag_list fallback, very inefficient since we keep all struct sk_buff around. So drivers enabling GRO but delivering linear skbs to network stack aren't enabling full GRO power. 2) splice(socket -> pipe). We must copy the linear part to a page fragment. This kind of defeats splice() purpose (zero copy claim) 3) TCP coalescing. Recently introduced, this permits to group several contiguous segments into a single skb. This shortens queue lengths and save kernel memory, and greatly reduce probabilities of TCP collapses. This coalescing doesnt work on linear skbs (or we would need to copy data, this would be too slow) Given all these issues, the following patch introduces the possibility of having skb->head be a fragment in itself. We use a new skb flag, skb->head_frag to carry this information. build_skb() is changed to accept a frag_size argument. Drivers willing to provide a page fragment instead of kmalloc() data will set a non zero value, set to the fragment size. Then, on situations we need to convert the skb head to a frag in itself, we can check if skb->head_frag is set and avoid the copies or various fallbacks we have. This means drivers currently using frags could be updated to avoid the current skb->head allocation and reduce their memory footprint (aka skb truesize). (thats 512 or 1024 bytes saved per skb). This also makes bpf/netfilter faster since the 'first frag' will be part of skb linear part, no need to copy data. Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: Maciej Żenczykowski <maze@google.com> Cc: Neal Cardwell <ncardwell@google.com> Cc: Tom Herbert <therbert@google.com> Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Cc: Ben Hutchings <bhutchings@solarflare.com> Cc: Matt Carlson <mcarlson@broadcom.com> Cc: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-29net/l2tp: add support for L2TP over IPv6 UDPBenjamin LaHaise2-1/+39
Now that encap_rcv() works on IPv6 UDP sockets, wire L2TP up to IPv6. Support has been tested with and without hardware offloading. This version fixes the L2TP over localhost issue with incorrect checksums being reported. Signed-off-by: Benjamin LaHaise <bcrl@kvack.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-26tcp repair: Fix unaligned access when repairing options (v2)Pavel Emelyanov1-0/+5
Don't pick __u8/__u16 values directly from raw pointers, but instead use an array of structures of code:value pairs. This is OK, since the buffer we take options from is not an skb memory, but a user-to-kernel one. For those options which don't require any value now, require this to be zero (for potential future extension of this API). v2: Changed tcp_repair_opt to use two __u32-s as spotted by David Laight. Signed-off-by: Pavel Emelyanov <xemul@parallels.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-26net: sock_diag_handler structs can be constShan Wei1-2/+2
read only, so change it to const. Signed-off-by: Shan Wei <davidshan@tencent.com> Acked-by: Pavel Emelyanov <xemul@parallels.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-24net: skb_can_coalesce returns a booleanEric Dumazet1-3/+3
Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-24Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller19-129/+162
Fix merge between commit 3adadc08cc1e ("net ax25: Reorder ax25_exit to remove races") and commit 0ca7a4c87d27 ("net ax25: Simplify and cleanup the ax25 sysctl handling") The former moved around the sysctl register/unregister calls, the later simply removed them. With help from Stephen Rothwell. Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-23Merge branch 'merge' of ↵Linus Torvalds1-0/+7
git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc Pull powerpc fixes from Benjamin Herrenschmidt: "Here are a few fixes for powerpc. Note the addition to the generic irq.h. This is part of a 3-patches regression fix for mpic due to changes in how IRQ_TYPE_NONE is being handled. Thomas agreed to the addition of the new IRQ_TYPE_DEFAULT contant, however he hasn't replied with an Ack to the actual patch yet. I don't to wait much longer with these patches tho." * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: powerpc/mpic: Properly set default triggers irq: Add IRQ_TYPE_DEFAULT for use by PIC drivers powerpc/mpic: Fix confusion between hw_irq and virq powerpc/pmac: Don't add_timer() twice powerpc/eeh: Fix crash caused by null eeh_dev powerpc/mpc85xx: add MPIC message dts node powerpc/mpic_msgr: fix offset error when setting mer register powerpc/mpic_msgr: add lock for MPIC message global variable powerpc/mpic_msgr: fix compile error when SMP disabled powerpc: fix build when CONFIG_BOOKE_WDT is enabled powerpc/85xx: don't call of_platform_bus_probe() twice
2012-04-23Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds1-3/+4
Pull networking fixes from David Miller: 1) Fix namespace init and cleanup in phonet to fix some oopses, from Eric W. Biederman. 2) Missing kfree_skb() in AF_KEY, from Julia Lawall. 3) Refcount leak and source address handling fix in l2tp from James Chapman. 4) Memory leak fix in CAIF from Tomasz Gregorek. 5) When routes are cloned from ipv6 addrconf routes, we don't process expirations properly. Fix from Gao Feng. 6) Fix panic on DMA errors in atl1 driver, from Tony Zelenoff. 7) Only enable interrupts in 8139cp driver after we've registered the IRQ handler. From Jason Wang. 8) Fix too many reads of KS_CIDER register in ks8851 during probe, fixing crashes on spurious interrupts. From Matt Renzelmann. 9) Missing include in ath5k driver and missing iounmap on probe failure, from Jonathan Bither. 10) Fix RX packet handling in smsc911x driver, from Will Deacon. 11) Fix ixgbe WoL on fiber by leaving the laser on during shutdown. 12) ks8851 needs MAX_RECV_FRAMES increased otherwise the internal MAC buffers are easily overflown. Fix from Davide Cimingahi. 13) Fix memory leaks in peak_usb CAN driver, from Jesper Juhl. 14) gred packet scheduler can dump in WRED more when doing a netlink dump. Fix from David Ward. 15) Fix MTU in USB smsc75xx driver, from Stephane Fillod. 16) Dummy device needs ->ndo_uninit handler to properly handle ->ndo_init failures. From Hiroaki SHIMODA. 17) Fix TX fragmentation in ath9k driver, from Sujith Manoharan. 18) Missing RTNL lock in ixgbe PM resume, from Benjamin Poirier. 19) Missing iounmap in farsync WAN driver, from Julia Lawall. 20) With LRO/GRO, tcp_grow_window() is easily tricked into not growing the receive window properly, and this hurts performance. Fix from Eric Dumazet. 21) Network namespace init failure can leak net_generic data, fix from Julian Anastasov. 22) Fix skb_over_panic due to mis-accounting in TCP for partially ACK'd SKBs. From Eric Dumazet. 23) New IDs for qmi_wwan driver, from Bjørn Mork. 24) Fix races in ax25_exit(), from Eric W. Biederman. 25) IPV6 TCP doesn't handle TCP_MAXSEG socket option properly, copy over logic from the IPV4 side. From Neal Cardwell. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (59 commits) tcp: fix TCP_MAXSEG for established IPv6 passive sockets drivers/net: Do not free an IRQ if its request failed drop_monitor: allow more events per second ks8851: Fix request_irq/free_irq mismatch net/hyperv: Adding cancellation to ensure rndis filter is closed ks8851: Fix mutex deadlock in ks8851_net_stop() net ax25: Reorder ax25_exit to remove races. icplus: fix interrupt for IC+ 101A/G and 1001LF net: qmi_wwan: support Sierra Wireless MC77xx devices in QMI mode bnx2x: off by one in bnx2x_ets_e3b0_sp_pri_to_cos_set() ksz884x: don't copy too much in netdev_set_mac_address() tcp: fix retransmit of partially acked frames netns: do not leak net_generic data on failed init net/sock.h: fix sk_peek_off kernel-doc warning tcp: fix tcp_grow_window() for large incoming frames drivers/net/wan/farsync.c: add missing iounmap davinci_mdio: Fix MDIO timeout check ipv6: clean up rt6_clean_expires ipv6: fix rt6_update_expires arcnet: rimi: Fix device name in debug output ...
2012-04-23irq: Add IRQ_TYPE_DEFAULT for use by PIC driversBenjamin Herrenschmidt1-0/+7
This is meant typically to allow a PIC driver's irq domain map() callback to establish sane defaults for the interrupt (and make sure that the HW and the irq_desc are in sync as far as the trigger is concerned). The irq core may not call the set_trigger callback if it thinks the trigger is already set to the right setting, so we need to ensure new descriptors are properly synchronized with the hardware. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-04-22team: allow to enable/disable portsJiri Pirko1-7/+8
This patch changes content of hashlist (used to get port struct by computed index (0...en_port_count-1)). Now the hash list contains only enabled ports so userspace will be able to say what ports can be used for tx/rx. This becomes handy when userspace will need to disable ports which does not belong to active aggregator. By default, newly added port is enabled. Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-21tcp: Repair connection-time negotiated parametersPavel Emelyanov1-0/+1
There are options, which are set up on a socket while performing TCP handshake. Need to resurrect them on a socket while repairing. A new sockoption accepts a buffer and parses it. The buffer should be CODE:VALUE sequence of bytes, where CODE is standard option code and VALUE is the respective value. Only 4 options should be handled on repaired socket. To read 3 out of 4 of these options the TCP_INFO sockoption can be used. An ability to get the last one (the mss_clamp) was added by the previous patch. Now the restore. Three of these options -- timestamp_ok, mss_clamp and snd_wscale -- are just restored on a coket. The sack_ok flags has 2 issues. First, whether or not to do sacks at all. This flag is just read and set back. No other sack info is saved or restored, since according to the standart and the code dropping all sack-ed segments is OK, the sender will resubmit them again, so after the repair we will probably experience a pause in connection. Next, the fack bit. It's just set back on a socket if the respective sysctl is set. No collected stats about packets flow is preserved. As far as I see (plz, correct me if I'm wrong) the fack-based congestion algorithm survives dropping all of the stats and repairs itself eventually, probably losing the performance for that period. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-21tcp: Initial repair modePavel Emelyanov1-1/+13
This includes (according the the previous description): * TCP_REPAIR sockoption This one just puts the socket in/out of the repair mode. Allowed for CAP_NET_ADMIN and for closed/establised sockets only. When repair mode is turned off and the socket happens to be in the established state the window probe is sent to the peer to 'unlock' the connection. * TCP_REPAIR_QUEUE sockoption This one sets the queue which we're about to repair. The 'no-queue' is set by default. * TCP_QUEUE_SEQ socoption Sets the write_seq/rcv_nxt of a selected repaired queue. Allowed for TCP_CLOSE-d sockets only. When the socket changes its state the other seq-s are changed by the kernel according to the protocol rules (most of the existing code is actually reused). * Ability to forcibly bind a socket to a port The sk->sk_reuse is set to SK_FORCE_REUSE. * Immediate connect modification The connect syscall initializes the connection, then directly jumps to the code which finalizes it. * Silent close modification The close just aborts the connection (similar to SO_LINGER with 0 time) but without sending any FIN/RST-s to peer. Signed-off-by: Pavel Emelyanov <xemul@parallels.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-21Merge tag 'mmc-fixes-for-3.4-rc4' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc Pull MMC fixes from Chris Ball: - Build fix for omap_hsmmc with OF against 3.4-rc1. - Fix CONFIG_MMC_UNSAFE_RESUME semantics regression against 3.3, which broke hotplug card detection when UNSAFE_RESUME is set. - Fix a race condition in omap_hsmmc with runtime PM. - Fix two libertas SDIO-powered-resume regressions. - Small fixes for discard/sanitize, dw_mmc, cd-gpio and esdhc-imx. * tag 'mmc-fixes-for-3.4-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc: mmc: core: Do not pre-claim host in suspend mmc: dw_mmc: prevent NULL dereference for dma_ops mmc: unbreak sdhci-esdhc-imx on i.MX25 mmc: cd-gpio: Include header to pickup exported symbol prototypes mmc: sdhci: refine non-removable card checking for card detection mmc: dw_mmc: Fix switch from DMA to PIO mmc: remove MMC bus legacy suspend/resume method mmc: omap_hsmmc: Get rid of of_have_populated_dt() usage mmc: omap_hsmmc: build fix for CONFIG_OF=y and CONFIG_MMC_OMAP_HS=m mmc: fixes for eMMC v4.5 sanitize operation mmc: fixes for eMMC v4.5 discard operation
2012-04-21Merge tag 'mfd-for-linus-3.4' of ↵Linus Torvalds4-71/+103
git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6 Pull MFD fixes from Samuel Ortiz: "We have 3 build fixes, a OMAP USB host PHY reset fix and the twl6040 conversion to an i2c driver. The latter may not sound like a fix but the twl6040 MFD driver won't probe without it, triggering an OMAP4 audio regression." * tag 'mfd-for-linus-3.4' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6: mfd: Fix modular builds of rc5t583 regulator support mfd: Fix asic3_gpio_to_irq ARM: OMAP3: USB: Fix the EHCI ULPI PHY reset issue mfd: Convert twl6040 to i2c driver, and separate it from twl core mfd : Fix dbx500 compilation error
2012-04-21kill mm argument of vm_munmap()Al Viro1-1/+1
it's always current->mm Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-04-21net: Delete all remaining instances of ctl_pathEric W. Biederman1-6/+0
We don't use struct ctl_path anymore so delete the exported constants. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Acked-by: Pavel Emelyanov <xemul@parallels.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-21mmc: remove MMC bus legacy suspend/resume methodChuanxiao Dong1-1/+1
MMC bus is using legacy suspend/resume method, which is not compatible if runtime pm callbacks are used. In this scenario, MMC bus suspend/resume callbacks cannot be called when system entering S3. So change to use the new defined dev_pm_ops for system sleeping mode. Tested on AM335x Platform. Solves major issue/crash reported at http://www.mail-archive.com/linux-omap@vger.kernel.org/msg65425.html Signed-off-by: Chuanxiao Dong <chuanxiao.dong@intel.com> Tested-by: Hebbar, Gururaja <gururaja.hebbar@ti.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Ulf Hansson <ulf.hansson@stericsson.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2012-04-21VM: add "vm_mmap()" helper functionLinus Torvalds1-17/+6
This continues the theme started with vm_brk() and vm_munmap(): vm_mmap() does the same thing as do_mmap(), but additionally does the required VM locking. This uninlines (and rewrites it to be clearer) do_mmap(), which sadly duplicates it in mm/mmap.c and mm/nommu.c. But that way we don't have to export our internal do_mmap_pgoff() function. Some day we hopefully don't have to export do_mmap() either, if all modular users can become the simpler vm_mmap() instead. We're actually very close to that already, with the notable exception of the (broken) use in i810, and a couple of stragglers in binfmt_elf. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-04-21VM: add "vm_munmap()" helper functionLinus Torvalds1-0/+1
Like the vm_brk() function, this is the same as "do_munmap()", except it does the VM locking for the caller. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-04-21VM: add "vm_brk()" helper functionLinus Torvalds1-1/+2
It does the same thing as "do_brk()", except it handles the VM locking too. It turns out that all external callers want that anyway, so we can make do_brk() static to just mm/mmap.c while at it. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-04-20Merge tag 'for-torvalds-20120418' of ↵Linus Torvalds1-1/+3
git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl Pull pinctrl fixes from Linus Walleij: - Fixed compilation errors and warnings - Stricter checks on the ops vtable * tag 'for-torvalds-20120418' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: pinctrl: implement pinctrl_check_ops pinctrl: include <linux/bug.h> to prevent compile errors pinctrl: fix compile error if not select PINMUX support
2012-04-20Merge tag 'usb-3.4-rc4' of ↵Linus Torvalds1-0/+1
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb Pull USB fixes from Greg Kroah-Hartman: "Here are a number of tiny USB fixes for 3.4-rc4. Most of them are in the USB gadget area, but a few other minor USB driver and core fixes are here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>" * tag 'usb-3.4-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (36 commits) USB: serial: cp210x: Fixed usb_control_msg timeout values USB: ehci-tegra: don't call set_irq_flags(IRQF_VALID) USB: yurex: Fix missing URB_NO_TRANSFER_DMA_MAP flag in urb USB: yurex: Remove allocation of coherent buffer for setup-packet buffer drivers/usb/misc/usbtest.c: add kfrees USB: ehci-fsl: Fix kernel crash on mpc5121e uwb: fix error handling uwb: fix use of del_timer_sync() in interrupt EHCI: always clear the STS_FLR status bit EHCI: fix criterion for resuming the root hub USB: sierra: avoid QMI/wwan interface on MC77xx usb: usbtest: avoid integer overflow in alloc_sglist() usb: usbtest: avoid integer overflow in test_ctrl_queue() USB: fix deadlock in bConfigurationValue attribute method usb: gadget: eliminate NULL pointer dereference (bugfix) usb: gadget: uvc: Remove non-required locking from 'uvc_queue_next_buffer' routine usb: gadget: rndis: fix Missing req->context assignment usb: musb: omap: fix the error check for pm_runtime_get_sync usb: gadget: udc-core: fix asymmetric calls in remove_driver usb: musb: omap: fix crash when musb glue (omap) gets initialized ...
2012-04-20stmmac: use custom init/exit functions in pm opsFrancesco Virlinzi1-0/+1
Freeze and restore can call the custom init/exit functions. Also the patch adds a custom data field that can be used for storing platform data useful on restore the embedded setup (e.g. GPIO, SYSCFG). Signed-off-by: Francesco Virlinzi <francesco.virlinzi@st.com> Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-20Merge branch 'for-3.4' of git://linux-nfs.org/~bfields/linuxLinus Torvalds1-0/+1
Pull nfsd bugfixes from J. Bruce Fields: "One bugfix, and one minor header fix from Jeff Layton while we're here" * 'for-3.4' of git://linux-nfs.org/~bfields/linux: nfsd: include cld.h in the headers_install target nfsd: don't fail unchecked creates of non-special files
2012-04-19nf_bridge: remove holes in struct nf_bridge_infoEric Dumazet1-5/+5
Put use & mask on same location to avoid two holes on 64bit arches Signed-off-by: Eric Dumazet <edumazet@google.com> Acked-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-19Merge git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds1-0/+6
Pull KVM updates from Marcelo Tosatti. * git://git.kernel.org/pub/scm/virt/kvm/kvm: KVM: lock slots_lock around device assignment KVM: VMX: Fix kvm_set_shared_msr() called in preemptible context KVM: unmap pages from the iommu when slots are removed KVM: PMU emulation: GLOBAL_CTRL MSR should be enabled on reset
2012-04-19Merge branch 'for-linus' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse Pull fuse updates from Miklos Szeredi. * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse: fuse: use flexible array in fuse.h fuse: allow nanosecond granularity fuse: O_DIRECT support for files fuse: fix nlink after unlink
2012-04-18Merge branch 'master' of ↵John W. Linville2-2/+3
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem Conflicts: drivers/net/wireless/iwlwifi/iwl-testmode.c include/net/nfc/nfc.h net/nfc/netlink.c net/wireless/nl80211.c
2012-04-16mfd: Fix modular builds of rc5t583 regulator supportPaul Gortmaker1-8/+39
The combination of commit 1b1247dd75aa5cf5fae54a3bec7280046e9c7957 "mfd: Add support for RICOH PMIC RC5T583" and commit 6ffc3270210efa2bea526953a142ffc908f5bd86 "regulator: Add support for RICOH PMIC RC5T583 regulator" are causing the i386 allmodconfig builds to fail with this: ERROR: "rc5t583_update" [drivers/regulator/rc5t583-regulator.ko] undefined! ERROR: "rc5t583_set_bits" [drivers/regulator/rc5t583-regulator.ko] undefined! ERROR: "rc5t583_clear_bits" [drivers/regulator/rc5t583-regulator.ko] undefined! ERROR: "rc5t583_read" [drivers/regulator/rc5t583-regulator.ko] undefined! and this: ERROR: "rc5t583_ext_power_req_config" [drivers/regulator/rc5t583-regulator.ko] undefined! For the 1st four, make the simple ops static inline, instead of polluting the namespace with trivial exports. For the last one, add an EXPORT_SYMBOL. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-04-16nfsd: include cld.h in the headers_install targetJeff Layton1-0/+1
The cld.h file contains the definition of the upcall format to talk with nfsdcld. When I added the file though, I neglected to add it to the headers-y target, so make headers_install wasn't installing it. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2012-04-16mac80211: Set the correct values for hwmp (1) and airtimeLinkMetric (1)Javier Cardona1-2/+2
Per sections 8.4.2.100.2 and 8.4.2.100.3 of Std 802.11-2012 Reported-by: Shinichi Hotori <hotorinn@gmail.com> Signed-off-by: Javier Cardona <javier@cozybit.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-04-16Merge tag 'fixes-for-v3.4-rc3' of ↵Greg Kroah-Hartman1-0/+1
git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-linus usb: fixes for v3.4-rc cycle Here are the fixes I have queued for v3.4-rc cycle so far. It includes fixes on many of the gadget drivers and a few of the UDC controller drivers. For musb we have a fix for a kernel oops when unloading omap2430.ko glue layer, proper error checking for pm_runtime_*, fix for the ULPI transfer block, and a bug fix in musb_cleanup_urb routine. For s3c-hsotg we have mostly FIFO-related fixes (proper TX FIFO allocation, TX FIFO corruption fix in DMA mode) but also a couple of minor fixes (fixing maximum packet size for ep0 and fix for big transfers with DMA). For the dwc3 driver we have a memory leak fix, a very important fix for USB30CV with SetFeature tests and the hability to handle ep0 requests bigger than wMaxPacketSize. On top of that there's a bunch of gadget driver minor fixes adding proper section annotations, and fixing up the sysfs interface for doing device-initiated connect/disconnect and so on. All patches have been pending on the mailing list for quite a while and look good for your for-linus branch.
2012-04-16mfd: Convert twl6040 to i2c driver, and separate it from twl corePeter Ujfalusi2-12/+27
Complete the separation of the twl6040 from the twl core since it is a separate chip, not part of the twl6030 PMIC. Make the needed Kconfig changes for the depending drivers at the same time to avoid breaking the kernel build (vibra, ASoC components). Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Reviewed-by: Mark Brown <broonie@opensource.wolfsonicro.com> Acked-by: Tony Lindgren <tony@atomide.com> Acked-by: Dmitry Torokhov <dtor@mail.ru> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-04-16mfd : Fix dbx500 compilation errorDaniel Lezcano1-51/+37
The ux500 default config enables the db5500 and the db8500. The incoming cpuidle driver uses the 'prcmu_enable_wakeups' and the 'prcmu_set_power_state' functions but these ones are defined but not implemented for the db5500, leading to an unresolved symbol error at link time. In order to compile, we have to disable the db5500 support which is not acceptable for the default config. I noticed there are also some other functions which are defined but not implemented. This patch fix this by removing the functions definitions and move out of the config section the empty functions which are normally used when the DB550 config is disabled. Only the functions which are not implemented are concerned by this modification. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-04-16Merge branch 'fixes' of git://git.linaro.org/people/rmk/linux-armLinus Torvalds1-7/+0
Pull ARM fixes from Russell King: "Nothing too disasterous, the biggest thing being the removal of the regulator support for vcore in the AMBA driver; only one SoC was using this and it got broken during the last merge window, which then started causing problems for other people. Mutual agreement was reached for it to be removed." * 'fixes' of git://git.linaro.org/people/rmk/linux-arm: ARM: 7386/1: jump_label: fixup for rename to static_key ARM: 7384/1: ThumbEE: Disable userspace TEEHBR access for !CONFIG_ARM_THUMBEE ARM: 7382/1: mm: truncate memory banks to fit in 4GB space for classic MMU ARM: 7359/2: smp_twd: Only wait for reprogramming on active cpus ARM: 7383/1: nommu: populate vectors page from paging_init ARM: 7381/1: nommu: fix typo in mm/Kconfig ARM: 7380/1: DT: do not add a zero-sized memory property ARM: 7379/1: DT: fix atags_to_fdt() second call site ARM: 7366/3: amba: Remove AMBA level regulator support ARM: 7377/1: vic: re-read status register before dispatching each IRQ handler ARM: 7368/1: fault.c: correct how the tsk->[maj|min]_flt gets incremented
2012-04-15Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller1-3/+4
Conflicts: drivers/net/ethernet/atheros/atlx/atl1.c drivers/net/ethernet/atheros/atlx/atl1.h Resolved a conflict between a DMA error bug fix and NAPI support changes in the atl1 driver. Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-15macvlan: add FDB bridge ops and macvlan flagsJohn Fastabend2-0/+4
This adds FDB bridge ops to the macvlan device passthru mode. Additionally a flags field was added and a NOPROMISC bit to allow users to use passthru mode without the driver calling dev_set_promiscuity(). The flags field is a u16 placed in a 4 byte hole (consuming 2 bytes) of the macvlan_dev struct. We want to do this so that the macvlan driver or stack above the macvlan driver does not have to process every packet. For the use case where we know all the MAC addresses of the endstations above us this works well. This patch is a result of Roopa Prabhu's work. Follow up patches are needed for VEPA and VEB macvlan modes. v2: Change from distinct nopromisc mode to a flags field to configure this. This avoids the tendency to add a new mode every time we need some slightly different behavior. v3: fix error in dev_set_promiscuity and add change and get link attributes for flags. CC: Roopa Prabhu <roprabhu@cisco.com> CC: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: John Fastabend <john.r.fastabend@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-15net: addr_list: add exclusive dev_uc_add and dev_mc_addJohn Fastabend1-0/+2
This adds a dev_uc_add_excl() and dev_mc_add_excl() calls similar to the original dev_{uc|mc}_add() except it sets the global bit and returns -EEXIST for duplicat entires. This is useful for drivers that support SR-IOV, macvlan devices and any other devices that need to manage the unicast and multicast lists. v2: fix typo UNICAST should be MULTICAST in dev_mc_add_excl() CC: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: John Fastabend <john.r.fastabend@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-15net: add generic PF_BRIDGE:RTM_ FDB hooksJohn Fastabend3-0/+30
This adds two new flags NTF_MASTER and NTF_SELF that can now be used to specify where PF_BRIDGE netlink commands should be sent. NTF_MASTER sends the commands to the 'dev->master' device for parsing. Typically this will be the linux net/bridge, or open-vswitch devices. Also without any flags set the command will be handled by the master device as well so that current user space tools continue to work as expected. The NTF_SELF flag will push the PF_BRIDGE commands to the device. In the basic example below the commands are then parsed and programmed in the embedded bridge. Note if both NTF_SELF and NTF_MASTER bits are set then the command will be sent to both 'dev->master' and 'dev' this allows user space to easily keep the embedded bridge and software bridge in sync. There is a slight complication in the case with both flags set when an error occurs. To resolve this the rtnl handler clears the NTF_ flag in the netlink ack to indicate which sets completed successfully. The add/del handlers will abort as soon as any error occurs. To support this new net device ops were added to call into the device and the existing bridging code was refactored to use these. There should be no required changes in user space to support the current bridge behavior. A basic setup with a SR-IOV enabled NIC looks like this, veth0 veth2 | | ------------ | bridge0 | <---- software bridging ------------ / / ethx.y ethx VF PF \ \ <---- propagate FDB entries to HW \ \ -------------------- | Embedded Bridge | <---- hardware offloaded switching -------------------- In this case the embedded bridge must be managed to allow 'veth0' to communicate with 'ethx.y' correctly. At present drivers managing the embedded bridge either send frames onto the network which then get dropped by the switch OR the embedded bridge will flood these frames. With this patch we have a mechanism to manage the embedded bridge correctly from user space. This example is specific to SR-IOV but replacing the VF with another PF or dropping this into the DSA framework generates similar management issues. Examples session using the 'br'[1] tool to add, dump and then delete a mac address with a new "embedded" option and enabled ixgbe driver: # br fdb add 22:35:19:ac:60:59 dev eth3 # br fdb port mac addr flags veth0 22:35:19:ac:60:58 static veth0 9a:5f:81:f7:f6:ec local eth3 00:1b:21:55:23:59 local eth3 22:35:19:ac:60:59 static veth0 22:35:19:ac:60:57 static #br fdb add 22:35:19:ac:60:59 embedded dev eth3 #br fdb port mac addr flags veth0 22:35:19:ac:60:58 static veth0 9a:5f:81:f7:f6:ec local eth3 00:1b:21:55:23:59 local eth3 22:35:19:ac:60:59 static veth0 22:35:19:ac:60:57 static eth3 22:35:19:ac:60:59 local embedded #br fdb del 22:35:19:ac:60:59 embedded dev eth3 I added a couple lines to 'br' to set the flags correctly is all. It is my opinion that the merit of this patch is now embedded and SW bridges can both be modeled correctly in user space using very nearly the same message passing. [1] 'br' tool was published as an RFC here and will be renamed 'bridge' http://patchwork.ozlabs.org/patch/117664/ Thanks to Jamal Hadi Salim, Stephen Hemminger and Ben Hutchings for valuable feedback, suggestions, and review. v2: fixed api descriptions and error case with both NTF_SELF and NTF_MASTER set plus updated patch description. Signed-off-by: John Fastabend <john.r.fastabend@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-15net: cleanup unsigned to unsigned intEric Dumazet6-26/+26
Use of "unsigned int" is preferred to bare "unsigned" in net tree. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-15virtio-net: send gratuitous packets when neededJason Wang1-0/+14
As hypervior does not have the knowledge of guest network configuration, it's better to ask guest to send gratuitous packets when needed. This patch implements VIRTIO_NET_F_GUEST_ANNOUNCE feature: hypervisor would notice the guest when it thinks it's time for guest to announce the link presnece. Guest tests VIRTIO_NET_S_ANNOUNCE bit during config change interrupt and woule send gratuitous packets through netif_notify_peers() and ack the notification through ctrl vq. We need to make sure the atomicy of read and ack in guest otherwise we may ack more times than being notified. This is done through handling the whole config change interrupt in an non-reentrant workqueue. Signed-off-by: Jason Wang <jasowang@redhat.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-14inet: makes syn_ack_timeout mandatoryEric Dumazet1-0/+2
There are two struct request_sock_ops providers, tcp and dccp. inet_csk_reqsk_queue_prune() can avoid testing syn_ack_timeout being NULL if we make it non NULL like syn_ack_timeout Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Gerrit Renker <gerrit@erg.abdn.ac.uk> Cc: dccp@vger.kernel.org Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-14do not export kernel's NULL #define to userspaceLubos Lunak1-6/+2
GCC's NULL is actually __null, which allows detecting some questionable NULL usage and warn about it. Moreover each platform/compiler should have its own stddef.h anyway (which is different from linux/stddef.h). So there's no good reason to leak kernel's NULL to userspace and override what the compiler provides. Signed-off-by: Luboš Luňák <l.lunak@suse.cz> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-04-14Merge branch 'for-3.4/core' of git://git.kernel.dk/linux-blockLinus Torvalds1-11/+7
Pull block core bits from Jens Axboe: "It's a nice and quiet round this time, since most of the tricky stuff has been pushed to 3.5 to give it more time to mature. After a few hectic block IO core changes for 3.3 and 3.2, I'm quite happy with a slow round. Really minor stuff in here, the only real functional change is making the auto-unplug threshold a per-queue entity. The threshold is set so that it's low enough that we don't hold off IO for too long, but still big enough to get a nice benefit from the batched insert (and hence queue lock cost reduction). For raid configurations, this currently breaks down." * 'for-3.4/core' of git://git.kernel.dk/linux-block: block: make auto block plug flush threshold per-disk based Documentation: Add sysfs ABI change for cfq's target latency. block: Make cfq_target_latency tunable through sysfs. block: use lockdep_assert_held for queue locking block: blk_alloc_queue_node(): use caller's GFP flags instead of GFP_KERNEL