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2015-06-07batman-adv: split name from variable for uint mesh attributesAntonio Quartulli1-14/+15
Some mesh attributes are behind substructs in the batadv_priv object and for this reason the name cannot be used anymore to refer to them. This patch allows to specify the variable name where the attribute is stored inside batadv_priv instead of using the name Signed-off-by: Antonio Quartulli <antonio@open-mesh.com> Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
2015-06-07batman-adv: Use common Jenkins Hash implementationSven Eckelmann7-62/+25
An unoptimized version of the Jenkins one-at-a-time hash function is used and partially copied all over the code wherever an hashtable is used. Instead the optimized version shared between the whole kernel should be used to reduce code duplication and use better optimized code. Only the DAT code must use the old implementation because it is used as distributed hash function which has to be common for all nodes. Signed-off-by: Sven Eckelmann <sven@narfation.org> Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
2015-06-07bpf: allow programs to write to certain skb fieldsAlexei Starovoitov6-48/+207
allow programs read/write skb->mark, tc_index fields and ((struct qdisc_skb_cb *)cb)->data. mark and tc_index are generically useful in TC. cb[0]-cb[4] are primarily used to pass arguments from one program to another called via bpf_tail_call() which can be seen in sockex3_kern.c example. All fields of 'struct __sk_buff' are readable to socket and tc_cls_act progs. mark, tc_index are writeable from tc_cls_act only. cb[0]-cb[4] are writeable by both sockets and tc_cls_act. Add verifier tests and improve sample code. Signed-off-by: Alexei Starovoitov <ast@plumgrid.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-06-07bpf: make programs see skb->data == L2 for ingress and egressAlexei Starovoitov4-29/+30
eBPF programs attached to ingress and egress qdiscs see inconsistent skb->data. For ingress L2 header is already pulled, whereas for egress it's present. This is known to program writers which are currently forced to use BPF_LL_OFF workaround. Since programs don't change skb internal pointers it is safe to do pull/push right around invocation of the program and earlier taps and later pt->func() will not be affected. Multiple taps via packet_rcv(), tpacket_rcv() are doing the same trick around run_filter/BPF_PROG_RUN even if skb_shared. This fix finally allows programs to use optimized LD_ABS/IND instructions without BPF_LL_OFF for higher performance. tc ingress + cls_bpf + samples/bpf/tcbpf1_kern.o w/o JIT w/JIT before 20.5 23.6 Mpps after 21.8 26.6 Mpps Old programs with BPF_LL_OFF will still work as-is. We can now undo most of the earlier workaround commit: a166151cbe33 ("bpf: fix bpf helpers to use skb->mac_header relative offsets") Signed-off-by: Alexei Starovoitov <ast@plumgrid.com> Acked-by: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-06-07tcp: remove redundant checks IIEric Dumazet2-8/+0
For same reasons than in commit 12e25e1041d0 ("tcp: remove redundant checks"), we can remove redundant checks done for timewait sockets. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-06-07fddi: print an address with %p format specifier rather than %xColin Ian King1-1/+1
The debug is printing the struct smt_header * address using the %x format specifier. Fix it to use %p instead. Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-06-07amd-xgbe: Use disable_irq_nosync from within timer functionLendacky, Thomas1-1/+1
Since the Tx timer function runs in softirq context the driver needs to call disable_irq_nosync instead of a disable_irq. Reported-by: Josh Stone <jistone@redhat.com> Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-06-07wan: dscc4: fix build warning Wunused-but-set-variableNicholas Mc Guire1-3/+0
Fix: drivers/net/wan/dscc4.c: In function 'dscc4_open': drivers/net/wan/dscc4.c:1049:25: warning: variable 'ppriv' set but not used [-Wunused-but-set-variable] This has been in there unused since 1da177e4c3f (Linux-2.6.12-rc2) simply remove it. Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-06-07rhashtable: add missing import <linux/export.h>Hauke Mehrtens1-0/+1
rhashtable uses EXPORT_SYMBOL_GPL() without importing linux/export.h directly it is only imported indirectly through some other includes. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-06-07inet: add IP_BIND_ADDRESS_NO_PORT to overcome bind(0) limitationsEric Dumazet5-2/+13
When an application needs to force a source IP on an active TCP socket it has to use bind(IP, port=x). As most applications do not want to deal with already used ports, x is often set to 0, meaning the kernel is in charge to find an available port. But kernel does not know yet if this socket is going to be a listener or be connected. It has very limited choices (no full knowledge of final 4-tuple for a connect()) With limited ephemeral port range (about 32K ports), it is very easy to fill the space. This patch adds a new SOL_IP socket option, asking kernel to ignore the 0 port provided by application in bind(IP, port=0) and only remember the given IP address. The port will be automatically chosen at connect() time, in a way that allows sharing a source port as long as the 4-tuples are unique. This new feature is available for both IPv4 and IPv6 (Thanks Neal) Tested: Wrote a test program and checked its behavior on IPv4 and IPv6. strace(1) shows sequences of bind(IP=127.0.0.2, port=0) followed by connect(). Also getsockname() show that the port is still 0 right after bind() but properly allocated after connect(). socket(PF_INET, SOCK_STREAM, IPPROTO_IP) = 5 setsockopt(5, SOL_IP, IP_BIND_ADDRESS_NO_PORT, [1], 4) = 0 bind(5, {sa_family=AF_INET, sin_port=htons(0), sin_addr=inet_addr("127.0.0.2")}, 16) = 0 getsockname(5, {sa_family=AF_INET, sin_port=htons(0), sin_addr=inet_addr("127.0.0.2")}, [16]) = 0 connect(5, {sa_family=AF_INET, sin_port=htons(53174), sin_addr=inet_addr("127.0.0.3")}, 16) = 0 getsockname(5, {sa_family=AF_INET, sin_port=htons(38050), sin_addr=inet_addr("127.0.0.2")}, [16]) = 0 IPv6 test : socket(PF_INET6, SOCK_STREAM, IPPROTO_IP) = 7 setsockopt(7, SOL_IP, IP_BIND_ADDRESS_NO_PORT, [1], 4) = 0 bind(7, {sa_family=AF_INET6, sin6_port=htons(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_flowinfo=0, sin6_scope_id=0}, 28) = 0 getsockname(7, {sa_family=AF_INET6, sin6_port=htons(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_flowinfo=0, sin6_scope_id=0}, [28]) = 0 connect(7, {sa_family=AF_INET6, sin6_port=htons(57300), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_flowinfo=0, sin6_scope_id=0}, 28) = 0 getsockname(7, {sa_family=AF_INET6, sin6_port=htons(60964), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_flowinfo=0, sin6_scope_id=0}, [28]) = 0 I was able to bind()/connect() a million concurrent IPv4 sockets, instead of ~32000 before patch. lpaa23:~# ulimit -n 1000010 lpaa23:~# ./bind --connect --num-flows=1000000 & 1000000 sockets lpaa23:~# grep TCP /proc/net/sockstat TCP: inuse 2000063 orphan 0 tw 47 alloc 2000157 mem 66 Check that a given source port is indeed used by many different connections : lpaa23:~# ss -t src :40000 | head -10 State Recv-Q Send-Q Local Address:Port Peer Address:Port ESTAB 0 0 127.0.0.2:40000 127.0.202.33:44983 ESTAB 0 0 127.0.0.2:40000 127.2.27.240:44983 ESTAB 0 0 127.0.0.2:40000 127.2.98.5:44983 ESTAB 0 0 127.0.0.2:40000 127.0.124.196:44983 ESTAB 0 0 127.0.0.2:40000 127.2.139.38:44983 ESTAB 0 0 127.0.0.2:40000 127.1.59.80:44983 ESTAB 0 0 127.0.0.2:40000 127.3.6.228:44983 ESTAB 0 0 127.0.0.2:40000 127.0.38.53:44983 ESTAB 0 0 127.0.0.2:40000 127.1.197.10:44983 Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-06-07Merge tag 'driver-core-4.1-rc7' of ↵Linus Torvalds4-6/+12
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core Pull driver core fixes from Greg KH: "Here are two fixes for the driver core that resolve some reported issues. One is a regression from 4.0, the other a fixes a reported oops that has been there since 3.19. Both have been in linux-next for a while with no problems" * tag 'driver-core-4.1-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: drivers/base: cacheinfo: handle absence of caches drivers: of/base: move of_init to driver_init
2015-06-07Merge tag 'staging-4.1-rc7' of ↵Linus Torvalds12-110/+148
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging Pull staging / IIO fixes from Greg KH: "Here are some IIO driver fixes to resolve reported issues, some ozwpan fixes for some reported CVE problems, and a rtl8712 driver fix for a reported regression. All have been in linux-next successfully" * tag 'staging-4.1-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: staging: rtl8712: fix stack dump ozwpan: unchecked signed subtraction leads to DoS ozwpan: divide-by-zero leading to panic ozwpan: Use unsigned ints to prevent heap overflow ozwpan: Use proper check to prevent heap overflow iio: adc: twl6030-gpadc: Fix modalias iio: adis16400: Fix burst transfer for adis16448 iio: adis16400: Fix burst mode iio: adis16400: Compute the scan mask from channel indices iio: adis16400: Use != channel indices for the two voltage channels iio: adis16400: Report pressure channel scale
2015-06-07Merge tag 'tty-4.1-rc7' of ↵Linus Torvalds4-22/+105
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty Pull tty/serial driver fixes from Greg KH: "Here are a few TTY and Serial driver fixes for reported regressions and crashes. All of these have been in linux-next with no reported problems" * tag 'tty-4.1-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: n_tty: Fix auditing support for cannonical mode serial: 8250_omap: provide complete custom startup & shutdown callbacks n_tty: Fix calculation of size in canon_copy_from_read_buf serial: imx: Fix DMA handling for IDLE condition aborts serial/amba-pl011: Unconditionally poll for FIFO space before each TX char
2015-06-07Merge tag 'usb-4.1-rc7' of ↵Linus Torvalds20-63/+123
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb Pull USB and PHY driver fixes from Greg KH: "Here are some USB and PHY driver fixes that resolve some reported regressions. Also in here are some new device ids. All of the details are in the shortlog and these patches have been in linux-next with no problems" * tag 'usb-4.1-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (22 commits) USB: cp210x: add ID for HubZ dual ZigBee and Z-Wave dongle usb: renesas_usbhs: Don't disable the pipe if Control write status stage usb: renesas_usbhs: Fix fifo unclear in usbhsf_prepare_pop usb: gadget: f_fs: fix check in read operation usb: musb: fix order of conditions for assigning end point operations usb: gadget: f_uac1: check return code from config_ep_by_speed usb: gadget: ffs: fix: Always call ffs_closed() in ffs_data_clear() usb: gadget: g_ffs: Fix counting of missing_functions usb: s3c2410_udc: correct reversed pullup logic usb: dwc3: gadget: Fix incorrect DEPCMD and DGCMD status macros usb: phy: tahvo: Pass the IRQF_ONESHOT flag usb: phy: ab8500-usb: Pass the IRQF_ONESHOT flag usb: renesas_usbhs: Revise the binding document about the dma-names usb: host: xhci: add mutex for non-thread-safe data usb: make module xhci_hcd removable USB: serial: ftdi_sio: Add support for a Motion Tracker Development Board usb: gadget: f_midi: fix segfault when reading empty id phy: phy-rcar-gen2: Fix USBHS_UGSTS_LOCK value phy: omap-usb2: invoke pm_runtime_disable on error path phy: fix Kconfig dependencies ...
2015-06-07Merge tag 'devicetree-for-linus' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/glikely/linux Pull devicetree fix from Grant Likely: "Stupid typo fix for v4.1. One of the IS_ENABLED() macro calls forgot the CONFIG_ prefix. Only affects a tiny number of platforms, but still..." * tag 'devicetree-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/glikely/linux: of/dynamic: Fix test for PPC_PSERIES
2015-06-06Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linuxLinus Torvalds6-15/+20
Pull drm fixes from Dave Airlie: "i915 has a bunch of fixes, and Russell found a bug in sysfs writing handling that results in userspace getting stuck" * 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: drm: fix writing to /sys/class/drm/*/status drm/i915: Move WaBarrierPerformanceFixDisable:skl to skl code from chv code drm/i915: Include G4X/VLV/CHV in self refresh status drm/i915: Initialize HWS page address after GPU reset drm/i915: Don't skip request retirement if the active list is empty drm/i915/hsw: Fix workaround for server AUX channel clock divisor
2015-06-06Merge branch 'for-linus' of ↵Linus Torvalds2-6/+7
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input Pull input subsystem fixes from Dmitry Torokhov: "Just a couple touchpad drivers fixups" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: alps - do not reduce trackpoint speed by half Input: elantech - add new icbody type Input: elantech - fix detection of touchpads where the revision matches a known rate
2015-06-06Merge branch 'stable/for-linus-4.1' of ↵Linus Torvalds1-2/+3
git://git.kernel.org/pub/scm/linux/kernel/git/konrad/swiotlb Pull swiotlb fix from Konrad Rzeszutek Wilk: "Tiny little fix which just converts an function to be static. Really tiny" * 'stable/for-linus-4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/swiotlb: swiotlb: do not export map_single function
2015-06-06Merge branch 'stable/for-linus-4.1' of ↵Linus Torvalds1-15/+21
git://git.kernel.org/pub/scm/linux/kernel/git/konrad/ibft Pull iBFT fix from Konrad Rzeszutek Wilk: "One single fix from Chris to workaround UEFI platforms failing with iSCSI IBFT" * 'stable/for-linus-4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/ibft: iscsi_ibft: filter null v4-mapped v6 addresses
2015-06-06MIPS: KVM: Do not sign extend on unsigned MMIO loadNicholas Mc Guire1-1/+1
Fix possible unintended sign extension in unsigned MMIO loads by casting to uint16_t in the case of mmio_needed != 2. Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org> Reviewed-by: James Hogan <james.hogan@imgtec.com> Tested-by: James Hogan <james.hogan@imgtec.com> Cc: Gleb Natapov <gleb@kernel.org> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: kvm@vger.kernel.org Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/9985/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-06-06MIPS: BPF: Fix stack pointer allocationMarkos Chandras1-5/+1
Fix stack pointer offset which could potentially corrupt argument registers in the previous frame. The calculated offset reflects the size of all the registers we need to preserve so there is no need for this erroneous subtraction. [ralf@linux-mips.org: Fixed conflict due to only applying this fix part of the entire series as part of 4.1 fixes.] Signed-off-by: Markos Chandras <markos.chandras@imgtec.com> Cc: netdev@vger.kernel.org Cc: "David S. Miller" <davem@davemloft.net> Cc: Alexei Starovoitov <ast@plumgrid.com> Cc: Daniel Borkmann <dborkman@redhat.com> Cc: Hannes Frederic Sowa <hannes@stressinduktion.org> Cc: linux-kernel@vger.kernel.org Cc: linux-mips@linux-mips.org Patchwork: http://patchwork.linux-mips.org/patch/10527/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-06-06MIPS: Loongson-3: Fix a cpu-hotplug issue in loongson3_ipi_interrupt()Huacai Chen1-1/+1
setup_per_cpu_areas() only setup __per_cpu_offset[] for each possible cpu, but loongson_sysconf.nr_cpus can be greater than possible cpus (due to reserved_cpus_mask). So in loongson3_ipi_interrupt(), percpu access will touch the original varible in .data..percpu section which has been freed. Without this patch, cpu-hotplug will cause memery corruption. Signed-off-by: Huacai Chen <chenhc@lemote.com> Cc: John Crispin <john@phrozen.org> Cc: Steven J. Hill <Steven.Hill@imgtec.com> Cc: linux-mips@linux-mips.org Cc: Fuxin Zhang <zhangfx@lemote.com> Cc: Zhangjin Wu <wuzhangjin@gmail.com> Patchwork: http://patchwork.linux-mips.org/patch/10524/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-06-06MIPS: Fix enabling of DEBUG_STACKOVERFLOWJames Hogan1-1/+1
Commit 334c86c494b9 ("MIPS: IRQ: Add stackoverflow detection") added kernel stack overflow detection, however it only enabled it conditional upon the preprocessor definition DEBUG_STACKOVERFLOW, which is never actually defined. The Kconfig option is called DEBUG_STACKOVERFLOW, which manifests to the preprocessor as CONFIG_DEBUG_STACKOVERFLOW, so switch it to using that definition instead. Fixes: 334c86c494b9 ("MIPS: IRQ: Add stackoverflow detection") Signed-off-by: James Hogan <james.hogan@imgtec.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Adam Jiang <jiang.adam@gmail.com> Cc: linux-mips@linux-mips.org Cc: <stable@vger.kernel.org> # 2.6.37+ Patchwork: http://patchwork.linux-mips.org/patch/10531/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-06-06MIPS: c-r4k: Fix typo in probe_scache()Joshua Kinard1-1/+1
Fixes a typo in arch/mips/mm/c-r4k.c's probe_scache(). Signed-off-by: Joshua Kinard <kumba@gentoo.org> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-06-06cxgb4: Fix static checker warningHariprasad Shenai1-1/+1
The patch e85c9a7abfa4: ("cxgb4/cxgb4vf: Add code to calculate T5 BAR2 Offsets for SGE Queue Registers") from Dec 3, 2014, leads to the following static checker warning: drivers/net/ethernet/chelsio/cxgb4/t4_hw.c:5358 t4_bar2_sge_qregs() warn: should '(qid >> qpp_shift) << page_shift' be a 64 bit type? This patch fixes it Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-06-06Merge branch 'cxgb4-next'David S. Miller5-51/+257
Hariprasad Shenai says: ==================== Free VI, flush sge ec and some other misc. fixes This patch series adds the following. Free VI interface during remove, flush SGE ec routine, rename t4_link_start to t4_link_l1cfg since it only does l1 configuration, set mac addr from when we can't contact firmware for debug purpose, set pcie completion timeout and use fw interface to access TP_PIO_XXX registers This patch series has been created against net-next tree and includes patches on cxgb4 driver. We have included all the maintainers of respective drivers. Kindly review the change and let us know in case of any review comments. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2015-06-06cxgb4: Use FW LDST cmd to access TP_PIO_{ADDR, DATA} register firstHariprasad Shenai2-21/+83
The TP_PIO_{ADDR,DATA} registers are are in conflict with the firmware's use of these registers. Added a routine to access it through FW LDST cmd. Access all TP_PIO_{ADDR,DATA} register access through new routine if FW is alive. If firmware is dead, than fall back to indirect access. Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-06-06cxgb4: program pci completion timeoutHariprasad Shenai1-0/+19
Set pci completion timeout to 0xd. Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-06-06cxgb4: Set mac addr from vpd, when we can't contact firmwareHariprasad Shenai3-19/+81
Grab the Adapter MAC Address out of the VPD and use it for the "debug" network interface when either we can't contact the firmware Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-06-06cxgb4: Rename t4_link_start() to t4_link_l1cfgHariprasad Shenai4-6/+6
t4_link_start() was completely misnamed. It does _not_ start up the link. It merely does the L1 Configuration for the link. The Link Up process is started automatically by the firmware when the number of enabled Virtual Interfaces on a port goes from 0 to 1. So renaming this routine to t4_link_l1cfg() for better documentation. Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-06-06cxgb4: Add sge ec context flush serviceHariprasad Shenai4-5/+33
Add function to flush the sge ec context cache, and utilize this new function in the driver Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-06-06cxgb4: Free Virtual Interfaces in remove routineHariprasad Shenai3-0/+35
Free VI interfaces in remove routine. If we don't do this then the firmware will never drop the physical link to the peer. Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-06-06Merge branch 'master' of ↵David S. Miller6-35/+70
git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net-queue Jeff Kirsher says: ==================== Intel Wired LAN Driver Updates 2015-06-04 This series contains updates to i40e and i40evf. Anjali provides three fixes, first to resolve a Tx queue hang if mixed size frags are passed to the driver while using TSO. There was a corner case where we needed to linearize but we were not. Next fixes a bug in the default configuration which prevented a software bridge loaded on the PF interface from working correctly because broadcast packets are incorrectly looped back. Lastly fixes an NPAR bug when SRIOV is enabled, where we need to be in VEB mode, not VEPA mode at probe. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2015-06-06iscsi_ibft: filter null v4-mapped v6 addressesChris Leech1-15/+21
I've had reports of UEFI platforms failing iSCSI boot in various configurations, that ended up being caused by network initialization scripts getting tripped up by unexpected null addresses (0.0.0.0) being reported for gateways, dhcp servers, and dns servers. The tianocore EDK2 iSCSI driver generates an iBFT table that always uses IPv4-mapped IPv6 addresses for the NIC structure fields. This results in values that are "not present or not specified" being reported as ::ffff:0.0.0.0 rather than all zeros as specified. The iscsi_ibft module filters unspecified fields from the iBFT from sysfs, preventing userspace from using invalid values and making it easy to check for the presence of a value. This currently fails in regard to these mapped null addresses. In order to remain consistent with how the iBFT information is exposed, we should accommodate the behavior of the tianocore iSCSI driver as it's already in the wild in a large number of servers. Tested under qemu using an OVMF build of tianocore EDK2. Signed-off-by: Chris Leech <cleech@redhat.com> Reviewed-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2015-06-06swiotlb: do not export map_single functionAlexandre Courbot1-2/+3
The map_single() function is not defined as static, even though it doesn't seem to be used anywhere else in the kernel. Make it static to avoid namespace pollution since this is a rather generic symbol. Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2015-06-06drm: fix writing to /sys/class/drm/*/statusRussell King1-1/+1
Writing to a file is supposed to return the number of bytes written. Returning zero unfortunately causes bash to constantly spin trying to write to the sysfs file, to such an extent that even ^c and ^z have no effect. The only way out of that is to kill the shell and log back in. This isn't nice behaviour. Fix it by returning the number of characters written to sysfs files. [airlied: used suggestion from Al Viro] Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Dave Airlie <airlied@redhat.com>
2015-06-06Merge tag 'drm-intel-fixes-2015-06-05' of ↵Dave Airlie5-14/+19
git://anongit.freedesktop.org/drm-intel into drm-fixes bunch of i915 fixes. * tag 'drm-intel-fixes-2015-06-05' of git://anongit.freedesktop.org/drm-intel: drm/i915: Move WaBarrierPerformanceFixDisable:skl to skl code from chv code drm/i915: Include G4X/VLV/CHV in self refresh status drm/i915: Initialize HWS page address after GPU reset drm/i915: Don't skip request retirement if the active list is empty drm/i915/hsw: Fix workaround for server AUX channel clock divisor
2015-06-05Merge tag 'pci-v4.1-fixes-2' of ↵Linus Torvalds2-4/+9
git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci Pull PCI fixes from Bjorn Helgaas: "Resource management - Fix IOV sorting by alignment (Wei Yang) - Preserve resource size during alignment reordering (Yinghai Lu) Miscellaneous - MAINTAINERS: Add Pratyush for SPEAr13xx and DesignWare PCIe (Pratyush Anand)" * tag 'pci-v4.1-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: PCI: Preserve resource size during alignment reordering PCI: Fix IOV resource sorting by alignment requirement MAINTAINERS: Add Pratyush Anand as SPEAr13xx and DesignWare PCIe maintainer
2015-06-05Merge tag 'sound-4.1-rc7' of ↵Linus Torvalds5-6/+28
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound Pull sound fixes from Takashi Iwai: "It was a fairly calm week; here you can find only a few trivial quirks and fixes for USB and HD-audio. All changes are pretty device specific" * tag 'sound-4.1-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: ALSA: usb-audio: fix missing input volume controls in MAYA44 USB(+) ALSA: usb-audio: add MAYA44 USB+ mixer control names ALSA: hda/realtek - Add a fixup for another Acer Aspire 9420 ALSA: hda - Fix jack detection at resume with VT codecs ALSA: usb-audio: don't try to get Outlaw RR2150 sample rate ALSA: usb-audio: Add mic volume fix quirk for Logitech Quickcam Fusion ALSA: hda/realtek - Suooprt Dell headset mode for ALC256
2015-06-05Merge tag 'iommu-fixes-v4.1-rc6' of ↵Linus Torvalds1-0/+1
git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu Pull iommu fix from Joerg Roedel: "Only one patch: - Revert "iommu/amd: Don't allocate with __GFP_ZERO in alloc_coherent". This patch caused problems with some drivers, so it is better to revert it now until the drivers have been fixed" * tag 'iommu-fixes-v4.1-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: Revert "iommu/amd: Don't allocate with __GFP_ZERO in alloc_coherent"
2015-06-05Merge branch 'x86-urgent-for-linus' of ↵Linus Torvalds8-36/+166
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 fixes from Ingo Molnar: "Misc fixes: - early_idt_handlers[] fix that fixes the build with bleeding edge tooling - build warning fix on GCC 5.1 - vm86 fix plus self-test to make it harder to break it again" * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/asm/irq: Stop relying on magic JMP behavior for early_idt_handlers x86/asm/entry/32, selftests: Add a selftest for kernel entries from VM86 mode x86/boot: Add CONFIG_PARAVIRT_SPINLOCKS quirk to arch/x86/boot/compressed/misc.h x86/asm/entry/32: Really make user_mode() work correctly for VM86 mode
2015-06-05Merge branch 'perf-urgent-for-linus' of ↵Linus Torvalds10-84/+139
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull perf fixes from Ingo Molnar: "The biggest chunk of the changes are two regression fixes: a HT workaround fix and an event-group scheduling fix. It's been verified with 5 days of fuzzer testing. Other fixes: - eBPF fix - a BIOS breakage detection fix - PMU driver fixes" * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf/x86/intel/pt: Fix a refactoring bug perf/x86: Tweak broken BIOS rules during check_hw_exists() perf/x86/intel/pt: Untangle pt_buffer_reset_markers() perf: Disallow sparse AUX allocations for non-SG PMUs in overwrite mode perf/x86: Improve HT workaround GP counter constraint perf/x86: Fix event/group validation perf: Fix race in BPF program unregister
2015-06-05Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linuxLinus Torvalds2-3/+3
Pull drm fixes from Dave Airlie: "Just two small fixes: one radeon, one amdkfd" * 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: drm/amdkfd: fix topology bug with capability attr. drm/radeon: use proper ACR regisiter for DCE3.2
2015-06-05Merge branch 'i2c/for-current' of ↵Linus Torvalds2-1/+2
git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux Pull i2c bug fixes from Wolfram Sang: "Two small bugfixes for I2C" * 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: i2c: s3c2410: fix oops in suspend callback for non-dt platforms i2c: hix5hd2: Fix modalias to make module auto-loading work
2015-06-05Merge tag 'usb-serial-4.1-rc7' of ↵Greg Kroah-Hartman3-0/+3
git://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial into usb-linus Johan writes: USB-serial fixes for v4.1-rc7 Here are a couple of new device ids. Signed-off-by: Johan Hovold <johan@kernel.org>
2015-06-05Input: alps - do not reduce trackpoint speed by halfHans de Goede1-3/+2
On some v7 devices (e.g. Lenovo-E550) the deltas reported are typically only in the 0-1 range dividing this by 2 results in a range of 0-0. And even for v7 devices where this does not lead to making the trackstick entirely unusable, it makes it twice as slow as before we added v7 support and were using the ps/2 mouse emulation of the dual point setup. If some kind of generic slowdown is actually necessary for some devices, then that belongs in userspace, not in the kernel. Cc: stable@vger.kernel.org Reported-and-tested-by: Rico Moorman <rico.moorman@gmail.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Benjamin Tissoires <benjamin.tissoires@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-06-05Input: elantech - add new icbody type洪一竹1-0/+1
This adds new icbody type to the list recognized by Elantech PS/2 driver. Cc: stable@vger.kernel.org Signed-off-by: Sam Hung <sam.hung@emc.com.tw> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-06-05i40e: Make sure to be in VEB mode if SRIOV is enabled at probeAnjali Singhai Jain1-3/+17
If SRIOV is enabled we need to be in VEB mode not VEPA mode at probe. This fixes an NPAR bug when SRIOV is enabled in the BIOS. Change-ID: Ibf006abafd9a0ca3698ec24848cd771cf345cbbc Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com> Tested-by: Jim Young <james.m.young@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-06-05i40e: start up in VEPA mode by defaultAnjali Singhai Jain4-5/+36
The patch fixes a bug in the default configuration which prevented a software bridge loaded on the PF interface from working correctly because broadcast packets are incorrectly looped back. Fix the general case, by loading the driver in VEPA mode Until a VF or VMDq VSI is added. This way loopback on the Main VSI is turned off until needed and can resolve the issue of unnecessary reflection for users that do not have VF or VMDq VSIs setup. The driver must now coordinate the loopback setting for the Flow Director (FDIR) VSI to make sure it is in sync with the current VEB or VEPA mode setting. The user can still switch bridge modes from the bridge commands and choose to be in VEPA mode with VF VSIs. Because of hardware requirements, the call to switch to VEB mode when no VF/VMDqs are present will be rejected. NOTE: This patch uses BIT_ULL as that is preferred going forward, a followup patch in the lower priority queue to net-next will fix up the remaining 1 << usages. Change-ID: Ib121ddb18fe4b3c4f52e9deda6fcbeb9105683d1 Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com> Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Tested-by: Jim Young <james.m.young@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-06-05i40e/i40evf: Fix mixed size frags and linearizationAnjali Singhai Jain2-30/+20
This patch fixes a bug where the i40e Tx queue will hang if this skb is passed to the driver. With mixed size fragments while using TSO there was a corner case where we needed to linearize but we were not. This was seen with iSCSI traffic and could be reproduced with a frag list that looks like this: num_frags = 17, gso_segs = 17, hdr_len = 66, skb_shinfo(skb)->gso_size = 1448 size = 3002, j = 1, frag_size = 2936, num_frags = 17 size = 4268, j = 1, frag_size = 4096, num_frags = 16 size = 5534, j = 1, frag_size = 4096, num_frags = 15 size = 5352, j = 1, frag_size = 4096, num_frags = 14 size = 5170, j = 1, frag_size = 4096, num_frags = 13 size = 3468, j = 1, frag_size = 2576, num_frags = 12 size = 750, j = 1, frag_size = 112, num_frags = 11 size = 862, j = 2, frag_size = 112, num_frags = 10 size = 974, j = 3, frag_size = 112, num_frags = 9 size = 1126, j = 4, frag_size = 152, num_frags = 8 size = 1330, j = 5, frag_size = 204, num_frags = 7 size = 1534, j = 6, frag_size = 204, num_frags = 6 size = 356, j = 1, frag_size = 204, num_frags = 5 size = 560, j = 2, frag_size = 204, num_frags = 4 size = 764, j = 3, frag_size = 204, num_frags = 3 size = 968, j = 4, frag_size = 204, num_frags = 2 size = 1140, j = 5, frag_size = 172, num_frags = 1 result: linearize = 0, j = 6 Change-ID: I79bb1aeab0af255fe2ce28e93672a85d85bf47e8 Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com> Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>