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[3.16.y-ckt stable] Linux 3.16.7-ckt23 stable review

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  [3.16.y-ckt stable] Linux 3.16.7-ckt23 stable review Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:10 +0100
    [PATCH 3.16.y-ckt 118/128] x86/mce: Ensure offline CPUs don't participate in rendezvous process Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:10 +0100
    [PATCH 3.16.y-ckt 002/128] usb: gadget: pxa27x: fix suspend callback Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:10 +0100
    [PATCH 3.16.y-ckt 008/128] jbd2: Fix unreclaimed pages after truncate in data=journal mode Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:10 +0100
    [PATCH 3.16.y-ckt 077/128] xen-blkback: read from indirect descriptors only once Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:10 +0100
    [PATCH 3.16.y-ckt 085/128] USB: fix invalid memory access in hub_activate() Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:10 +0100
    [PATCH 3.16.y-ckt 126/128] firmware: dmi_scan: Fix UUID endianness for SMBIOS >= 2.6 Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:10 +0100
    [PATCH 3.16.y-ckt 125/128] kvm: x86: only channel 0 of the i8254 is linked to the HPET Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:10 +0100
    [PATCH 3.16.y-ckt 104/128] parisc: Fix syscall restarts Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:10 +0100
    [PATCH 3.16.y-ckt 034/128] dm thin metadata: fix bug when taking a metadata snapshot Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:10 +0100
    [PATCH 3.16.y-ckt 123/128] net: filter: make JITs zero A for SKF_AD_ALU_XOR_X Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:10 +0100
    [PATCH 3.16.y-ckt 098/128] ASoC: wm8974: set cache type for regmap Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:10 +0100
    [PATCH 3.16.y-ckt 122/128] ASoC: Use nested lock for snd_soc_dapm_mutex_lock Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:10 +0100
    [PATCH 3.16.y-ckt 062/128] n_tty: Fix poll() after buffer-limited eof push read Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:10 +0100
    [PATCH 3.16.y-ckt 095/128] drm/i915: Fix SRC_COPY width on 830/845g Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:10 +0100
    [PATCH 3.16.y-ckt 102/128] ALSA: hda - Set SKL+ hda controller power at freeze() and thaw() Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:10 +0100
    [PATCH 3.16.y-ckt 013/128] staging: lustre: echo_copy.._lsm() dereferences userland pointers directly Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:10 +0100
    [PATCH 3.16.y-ckt 127/128] udp: properly support MSG_PEEK with truncated buffers Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:10 +0100
      Re: [PATCH 3.16.y-ckt 127/128] udp: properly support MSG_PEEK with  truncated buffers Ben Hutchings <ben@decadent.org.uk> - 2016-01-25 02:50 +0100
        Re: [PATCH 3.16.y-ckt 127/128] udp: properly support MSG_PEEK with  truncated buffers Luis Henriques <luis.henriques@canonical.com> - 2016-01-25 12:00 +0100
    [PATCH 3.16.y-ckt 124/128] net: possible use after free in dst_release Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:10 +0100
    [PATCH 3.16.y-ckt 111/128] net/mlx4_en: Fix HW timestamp init issue upon system startup Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:10 +0100
    [PATCH 3.16.y-ckt 120/128] async_tx: use GFP_NOWAIT rather than GFP_IO Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:10 +0100
    [PATCH 3.16.y-ckt 023/128] ALSA: hda - Add inverted dmic for Packard Bell DOTS Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:10 +0100
    [PATCH 3.16.y-ckt 109/128] mm/memory_hotplug.c: check for missing sections in test_pages_in_a_zone() Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:10 +0100
    [PATCH 3.16.y-ckt 119/128] ASoC: arizona: Fix bclk for sample rates that are multiple of 4kHz Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:10 +0100
    [PATCH 3.16.y-ckt 071/128] powerpc/powernv: Fix the overflow of OPAL message notifiers head array Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:10 +0100
    [PATCH 3.16.y-ckt 067/128] spi: fix parent-device reference leak Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:10 +0100
    [PATCH 3.16.y-ckt 011/128] sata_sil: disable trim Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:10 +0100
    [PATCH 3.16.y-ckt 114/128] genirq: Prevent chip buslock deadlock Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:20 +0100
    [PATCH 3.16.y-ckt 093/128] net: fix warnings in 'make htmldocs' by moving macro definition out of field declaration Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:20 +0100
    [PATCH 3.16.y-ckt 112/128] ipv6/addrlabel: fix ip6addrlbl_get() Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:20 +0100
    [PATCH 3.16.y-ckt 091/128] qlcnic: fix a timeout loop Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:20 +0100
    [PATCH 3.16.y-ckt 097/128] KVM: PPC: Book3S HV: Prohibit setting illegal transaction state in MSR Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:20 +0100
    [PATCH 3.16.y-ckt 107/128] [PATCH] arm: fix handling of F_OFD_... in oabi_fcntl64() Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:20 +0100
    [PATCH 3.16.y-ckt 087/128] net: phy: mdio-mux: Check return value of mdiobus_alloc() Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:20 +0100
    [PATCH 3.16.y-ckt 092/128] ser_gigaset: fix deallocation of platform device structure Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:20 +0100
    [PATCH 3.16.y-ckt 103/128] s390/dis: Fix handling of format specifiers Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:20 +0100
    [PATCH 3.16.y-ckt 108/128] ocfs2: fix BUG when calculate new backup super Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:20 +0100
    [PATCH 3.16.y-ckt 084/128] USB: ipaq.c: fix a timeout loop Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:20 +0100
    [PATCH 3.16.y-ckt 094/128] include/linux/mmdebug.h: should include linux/bug.h Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:20 +0100
    [PATCH 3.16.y-ckt 099/128] ARM: dts: imx6: Fix Ethernet PHY mode on Ventana boards Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:20 +0100
    [PATCH 3.16.y-ckt 096/128] vmstat: allocate vmstat_wq before it is used Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:20 +0100
    [PATCH 3.16.y-ckt 100/128] scripts: recordmcount: break hardlinks Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:20 +0100
    [PATCH 3.16.y-ckt 106/128] MIPS: uaccess: Fix strlen_user with EVA Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:20 +0100
    [PATCH 3.16.y-ckt 105/128] ALSA: hda/realtek - Fix silent headphone output on MacPro 4,1 (v2) Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:20 +0100
    [PATCH 3.16.y-ckt 113/128] qlcnic: fix a loop exit condition better Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:20 +0100
    [PATCH 3.16.y-ckt 080/128] xen/pciback: Return error on XEN_PCI_OP_enable_msix when device has MSI or MSI-X enabled Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:20 +0100
    [PATCH 3.16.y-ckt 110/128] net/mlx4_en: Remove dependency between timestamping capability and service_task Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:20 +0100
    [PATCH 3.16.y-ckt 090/128] amd-xgbe: fix a couple timeout loops Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:20 +0100
    [PATCH 3.16.y-ckt 101/128] ftrace/scripts: Have recordmcount copy the object file Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:20 +0100
    [PATCH 3.16.y-ckt 086/128] pinctrl: bcm2835: Fix initial value for direction_output Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:20 +0100
    [PATCH 3.16.y-ckt 082/128] xen/pciback: For XEN_PCI_OP_disable_msi[|x] only disable if device has MSI(X) enabled. Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:20 +0100
    [PATCH 3.16.y-ckt 088/128] sh_eth: fix TX buffer byte-swapping Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:20 +0100
    Re: [PATCH 3.16.y-ckt 043/128] mm, vmstat: allow WQ concurrency to  discover memory reclaim doesn't make any progress Ben Hutchings <ben@decadent.org.uk> - 2016-01-24 23:20 +0100
      Re: [PATCH 3.16.y-ckt 043/128] mm, vmstat: allow WQ concurrency to  discover memory reclaim doesn't make any progress Luis Henriques <luis.henriques@canonical.com> - 2016-01-25 12:00 +0100
    [PATCH 3.16.y-ckt 081/128] xen/pciback: Do not install an IRQ handler for MSI interrupts. Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:20 +0100
    [PATCH 3.16.y-ckt 083/128] xen/pciback: Don't allow MSI-X ops if PCI_COMMAND_MEMORY is not set. Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:20 +0100
    [PATCH 3.16.y-ckt 063/128] tty: Fix GPF in flush_to_ldisc() Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:30 +0100
    [PATCH 3.16.y-ckt 059/128] Revert "SCSI: Fix NULL pointer dereference in runtime PM" Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:30 +0100
    [PATCH 3.16.y-ckt 074/128] xen-netback: don't use last request to determine minimum Tx credit Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:30 +0100
    [PATCH 3.16.y-ckt 030/128] radeon/cik: Fix GFX IB test on Big-Endian Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:30 +0100
    [PATCH 3.16.y-ckt 070/128] ARC: dw2 unwind: Ignore CIE version !=1 gracefully instead of bailing Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:30 +0100
    [PATCH 3.16.y-ckt 075/128] xen-netback: use RING_COPY_REQUEST() throughout Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:30 +0100
    [PATCH 3.16.y-ckt 057/128] rfkill: copy the name into the rfkill struct Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:30 +0100
    [PATCH 3.16.y-ckt 060/128] ses: fix additional element traversal bug Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:30 +0100
    [PATCH 3.16.y-ckt 079/128] xen/pciback: Return error on XEN_PCI_OP_enable_msi when device has MSI or MSI-X enabled Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:30 +0100
    [PATCH 3.16.y-ckt 064/128] ALSA: usb-audio: Add a more accurate volume quirk for AudioQuest DragonFly Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:30 +0100
    [PATCH 3.16.y-ckt 073/128] xen: Add RING_COPY_REQUEST() Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:30 +0100
    [PATCH 3.16.y-ckt 055/128] video: fbdev: fsl: Fix kernel crash when diu_ops is not implemented Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:30 +0100
    [PATCH 3.16.y-ckt 019/128] SCSI: Fix NULL pointer dereference in runtime PM Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:30 +0100
    [PATCH 3.16.y-ckt 027/128] IB/srp: Fix possible send queue overflow Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:30 +0100
    [PATCH 3.16.y-ckt 068/128] dma-debug: Fix dma_debug_entry offset calculation Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:30 +0100
    [PATCH 3.16.y-ckt 022/128] ALSA: rme96: Fix unexpected volume reset after rate changes Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:30 +0100
    [PATCH 3.16.y-ckt 014/128] irqchip/versatile-fpga: Fix PCI IRQ mapping on Versatile PB Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:30 +0100
    [PATCH 3.16.y-ckt 052/128] tools: Add a "make all" rule Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:30 +0100
    [PATCH 3.16.y-ckt 056/128] crypto: skcipher - Copy iv from desc even for 0-len walks Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:30 +0100
    [PATCH 3.16.y-ckt 069/128] ARC: dw2 unwind: Reinstante unwinding out of modules Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:30 +0100
    [PATCH 3.16.y-ckt 054/128] xen/events/fifo: Consume unprocessed events when a CPU dies Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:30 +0100
    [PATCH 3.16.y-ckt 016/128] USB: whci-hcd: add check for dma mapping error Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:30 +0100
    [PATCH 3.16.y-ckt 017/128] usb: Use the USB_SS_MULT() macro to decode burst multiplier for log message Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:30 +0100
    [PATCH 3.16.y-ckt 040/128] USB: add quirk for devices with broken LPM Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:30 +0100
    [PATCH 3.16.y-ckt 018/128] dm btree: fix leak of bufio-backed block in btree_split_sibling error path Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:30 +0100
    [PATCH 3.16.y-ckt 061/128] powercap / RAPL: fix BIOS lock check Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:30 +0100
    [PATCH 3.16.y-ckt 058/128] ses: Fix problems with simple enclosures Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:30 +0100
    [PATCH 3.16.y-ckt 076/128] xen-blkback: only read request operation from shared ring once Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:30 +0100
    [PATCH 3.16.y-ckt 066/128] ALSA: hda - Add a fixup for Thinkpad X1 Carbon 2nd Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:30 +0100
    [PATCH 3.16.y-ckt 072/128] powerpc/powernv: pr_warn_once on unsupported OPAL_MSG type Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:30 +0100
    [PATCH 3.16.y-ckt 065/128] ARM: 8471/1: need to save/restore arm register(r11) when it is corrupted Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:30 +0100
    [PATCH 3.16.y-ckt 053/128] i2c: mv64xxx: The n clockdiv factor is 0 based on sunxi SoCs Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:30 +0100
    [PATCH 3.16.y-ckt 042/128] mm: hugetlb: fix hugepage memory leak caused by wrong reserve count Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:40 +0100
    [PATCH 3.16.y-ckt 033/128] ALSA: hda - Fix noise problems on Thinkpad T440s Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:40 +0100
    [PATCH 3.16.y-ckt 049/128] efi: Disable interrupts around EFI calls, not in the epilog/prolog calls Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:40 +0100
    [PATCH 3.16.y-ckt 039/128] xhci: fix usb2 resume timing and races. Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:40 +0100
    [PATCH 3.16.y-ckt 046/128] ocfs2: fix SGID not inherited issue Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:40 +0100
    [PATCH 3.16.y-ckt 045/128] drivers/base/memory.c: prohibit offlining of memory blocks with missing sections Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:40 +0100
    [PATCH 3.16.y-ckt 005/128] USB: cdc_acm: Ignore Infineon Flash Loader utility Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:40 +0100
    [PATCH 3.16.y-ckt 010/128] AHCI: Fix softreset failed issue of Port Multiplier Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:40 +0100
    [PATCH 3.16.y-ckt 031/128] radeon: Fix VCE ring test for Big-Endian systems Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:40 +0100
    [PATCH 3.16.y-ckt 004/128] USB: cp210x: Remove CP2110 ID from compatibility list Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:40 +0100
    [PATCH 3.16.y-ckt 006/128] USB: serial: Another Infineon flash loader USB ID Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:40 +0100
    [PATCH 3.16.y-ckt 050/128] MIPS: uaccess: Take EVA into account in __copy_from_user() Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:40 +0100
    [PATCH 3.16.y-ckt 037/128] dm btree: fix bufio buffer leaks in dm_btree_del() error path Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:40 +0100
    [PATCH 3.16.y-ckt 051/128] MIPS: uaccess: Take EVA into account in [__]clear_user Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:40 +0100
    [PATCH 3.16.y-ckt 007/128] ext4: Fix handling of extended tv_sec Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:40 +0100
    [PATCH 3.16.y-ckt 036/128] ipmi: move timer init to before irq is setup Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:40 +0100
    [PATCH 3.16.y-ckt 035/128] dm space map metadata: fix ref counting bug when bootstrapping a new space map Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:40 +0100
    [PATCH 3.16.y-ckt 032/128] radeon: Fix VCE IB test on Big-Endian systems Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:40 +0100
    [PATCH 3.16.y-ckt 043/128] mm, vmstat: allow WQ concurrency to discover memory reclaim doesn't make any progress Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:40 +0100
    [PATCH 3.16.y-ckt 041/128] parisc iommu: fix panic due to trying to allocate too large region Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:40 +0100
    [PATCH 3.16.y-ckt 048/128] usb: musb: USB_TI_CPPI41_DMA requires dmaengine support Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:40 +0100
    [PATCH 3.16.y-ckt 047/128] sh64: fix __NR_fgetxattr Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:40 +0100
    [PATCH 3.16.y-ckt 038/128] vgaarb: fix signal handling in vga_get() Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:40 +0100
    [PATCH 3.16.y-ckt 044/128] mm: hugetlb: call huge_pte_alloc() only if ptep is null Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:40 +0100
    [PATCH 3.16.y-ckt 029/128] 9p: ->evict_inode() should kick out ->i_data, not ->i_mapping Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:40 +0100
    [PATCH 3.16.y-ckt 028/128] ALSA: hda - Fixing speaker noise on the two latest thinkpad models Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:50 +0100
    [PATCH 3.16.y-ckt 025/128] nfs4: limit callback decoding to received bytes Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:50 +0100
    [PATCH 3.16.y-ckt 021/128] usb: xhci: fix config fail of FS hub behind a HS hub with MTT Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:50 +0100
    [PATCH 3.16.y-ckt 026/128] SUNRPC: Fix callback channel Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:50 +0100
    [PATCH 3.16.y-ckt 020/128] perf: Fix PERF_EVENT_IOC_PERIOD deadlock Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:50 +0100
    [PATCH 3.16.y-ckt 024/128] virtio: fix memory leak of virtio ida cache layers Luis Henriques <luis.henriques@canonical.com> - 2016-01-24 23:50 +0100
    [PATCH 3.16.y-ckt 129/129] Revert "[stable-only] net: add length argument to skb_copy_and_csum_datagram_iovec" Luis Henriques <luis.henriques@canonical.com> - 2016-01-25 12:00 +0100

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#1316081 — [PATCH 3.16.y-ckt 017/128] usb: Use the USB_SS_MULT() macro to decode burst multiplier for log message

3.16.7-ckt23 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Ben Hutchings <ben@decadent.org.uk>

commit 5377adb092664d336ac212499961cac5e8728794 upstream.

usb_parse_ss_endpoint_companion() now decodes the burst multiplier
correctly in order to check that it's <= 3, but still uses the wrong
expression if warning that it's > 3.

Fixes: ff30cbc8da42 ("usb: Use the USB_SS_MULT() macro to get the ...")
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>
---
 drivers/usb/core/config.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/core/config.c b/drivers/usb/core/config.c
index b9ddf0c1ffe5..894894f2ff93 100644
--- a/drivers/usb/core/config.c
+++ b/drivers/usb/core/config.c
@@ -115,7 +115,8 @@ static void usb_parse_ss_endpoint_companion(struct device *ddev, int cfgno,
 		   USB_SS_MULT(desc->bmAttributes) > 3) {
 		dev_warn(ddev, "Isoc endpoint has Mult of %d in "
 				"config %d interface %d altsetting %d ep %d: "
-				"setting to 3\n", desc->bmAttributes + 1,
+				"setting to 3\n",
+				USB_SS_MULT(desc->bmAttributes),
 				cfgno, inum, asnum, ep->desc.bEndpointAddress);
 		ep->ss_ep_comp.bmAttributes = 2;
 	}

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#1316082 — [PATCH 3.16.y-ckt 040/128] USB: add quirk for devices with broken LPM

3.16.7-ckt23 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Alan Stern <stern@rowland.harvard.edu>

commit ad87e03213b552a5c33d5e1e7a19a73768397010 upstream.

Some USB device / host controller combinations seem to have problems
with Link Power Management.  For example, Steinar found that his xHCI
controller wouldn't handle bandwidth calculations correctly for two
video cards simultaneously when LPM was enabled, even though the bus
had plenty of bandwidth available.

This patch introduces a new quirk flag for devices that should remain
disabled for LPM, and creates quirk entries for Steinar's devices.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Reported-by: Steinar H. Gunderson <sgunderson@bigfoot.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[ luis: backported to 3.16: adjusted context ]
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>
---
 drivers/usb/core/hub.c     | 7 ++++++-
 drivers/usb/core/quirks.c  | 6 ++++++
 include/linux/usb/quirks.h | 3 +++
 3 files changed, 15 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index 882acb2a0b48..a1e577777a02 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -128,6 +128,10 @@ struct usb_hub *usb_hub_to_struct_hub(struct usb_device *hdev)
 
 int usb_device_supports_lpm(struct usb_device *udev)
 {
+	/* Some devices have trouble with LPM */
+	if (udev->quirks & USB_QUIRK_NO_LPM)
+		return 0;
+
 	/* USB 2.1 (and greater) devices indicate LPM support through
 	 * their USB 2.0 Extended Capabilities BOS descriptor.
 	 */
@@ -4479,6 +4483,8 @@ hub_port_init (struct usb_hub *hub, struct usb_device *udev, int port1,
 		goto fail;
 	}
 
+	usb_detect_quirks(udev);
+
 	if (udev->wusb == 0 && le16_to_cpu(udev->descriptor.bcdUSB) >= 0x0201) {
 		retval = usb_get_bos_descriptor(udev);
 		if (!retval) {
@@ -4674,7 +4680,6 @@ static void hub_port_connect(struct usb_hub *hub, int port1, u16 portstatus,
 		if (status < 0)
 			goto loop;
 
-		usb_detect_quirks(udev);
 		if (udev->quirks & USB_QUIRK_DELAY_INIT)
 			msleep(1000);
 
diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c
index 2b978ad9d9ef..0e8e656a045f 100644
--- a/drivers/usb/core/quirks.c
+++ b/drivers/usb/core/quirks.c
@@ -188,6 +188,12 @@ static const struct usb_device_id usb_quirk_list[] = {
 	/* USB3503 */
 	{ USB_DEVICE(0x0424, 0x3503), .driver_info = USB_QUIRK_RESET_RESUME },
 
+	/* Blackmagic Design Intensity Shuttle */
+	{ USB_DEVICE(0x1edb, 0xbd3b), .driver_info = USB_QUIRK_NO_LPM },
+
+	/* Blackmagic Design UltraStudio SDI */
+	{ USB_DEVICE(0x1edb, 0xbd4f), .driver_info = USB_QUIRK_NO_LPM },
+
 	{ }  /* terminating entry must be last */
 };
 
diff --git a/include/linux/usb/quirks.h b/include/linux/usb/quirks.h
index 4a185a0f6242..8f4f2214652f 100644
--- a/include/linux/usb/quirks.h
+++ b/include/linux/usb/quirks.h
@@ -47,4 +47,7 @@
 /* device can't handle device_qualifier descriptor requests */
 #define USB_QUIRK_DEVICE_QUALIFIER	0x00000100
 
+/* device can't handle Link Power Management */
+#define USB_QUIRK_NO_LPM			BIT(10)
+
 #endif /* __LINUX_USB_QUIRKS_H */

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#1316083 — [PATCH 3.16.y-ckt 018/128] dm btree: fix leak of bufio-backed block in btree_split_sibling error path

3.16.7-ckt23 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Mike Snitzer <snitzer@redhat.com>

commit 30ce6e1cc5a0f781d60227e9096c86e188d2c2bd upstream.

The block allocated at the start of btree_split_sibling() is never
released if later insert_at() fails.

Fix this by releasing the previously allocated bufio block using
unlock_block().

Reported-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>
---
 drivers/md/persistent-data/dm-btree.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/md/persistent-data/dm-btree.c b/drivers/md/persistent-data/dm-btree.c
index d6e47033b5e0..7ba85e2b146b 100644
--- a/drivers/md/persistent-data/dm-btree.c
+++ b/drivers/md/persistent-data/dm-btree.c
@@ -471,8 +471,10 @@ static int btree_split_sibling(struct shadow_spine *s, dm_block_t root,
 
 	r = insert_at(sizeof(__le64), pn, parent_index + 1,
 		      le64_to_cpu(rn->keys[0]), &location);
-	if (r)
+	if (r) {
+		unlock_block(s->info, right);
 		return r;
+	}
 
 	if (key < le64_to_cpu(rn->keys[0])) {
 		unlock_block(s->info, right);

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#1316084 — [PATCH 3.16.y-ckt 061/128] powercap / RAPL: fix BIOS lock check

3.16.7-ckt23 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Prarit Bhargava <prarit@redhat.com>

commit 79a21dbfae3cd40d5a801778071a9967b79c2c20 upstream.

Intel RAPL initialized on several systems where the BIOS lock bit (msr
0x610, bit 63) was set.  This occured because the return value of
rapl_read_data_raw() was being checked, rather than the value of the variable
passed in, locked.

This patch properly implments the rapl_read_data_raw() call to check the
variable locked, and now the Intel RAPL driver outputs the warning:

	intel_rapl: RAPL package 0 domain package locked by BIOS

and does not initialize for the package.

Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Acked-by: Jacob Pan <jacob.jun.pan@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>
---
 drivers/powercap/intel_rapl.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/powercap/intel_rapl.c b/drivers/powercap/intel_rapl.c
index a362dcc20ec0..ccb6768a352b 100644
--- a/drivers/powercap/intel_rapl.c
+++ b/drivers/powercap/intel_rapl.c
@@ -1191,10 +1191,13 @@ static int rapl_detect_domains(struct rapl_package *rp, int cpu)
 
 	for (rd = rp->domains; rd < rp->domains + rp->nr_domains; rd++) {
 		/* check if the domain is locked by BIOS */
-		if (rapl_read_data_raw(rd, FW_LOCK, false, &locked)) {
+		ret = rapl_read_data_raw(rd, FW_LOCK, false, &locked);
+		if (ret)
+			return ret;
+		if (locked) {
 			pr_info("RAPL package %d domain %s locked by BIOS\n",
 				rp->id, rd->name);
-				rd->state |= DOMAIN_STATE_BIOS_LOCKED;
+			rd->state |= DOMAIN_STATE_BIOS_LOCKED;
 		}
 	}
 

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#1316085 — [PATCH 3.16.y-ckt 058/128] ses: Fix problems with simple enclosures

3.16.7-ckt23 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: James Bottomley <James.Bottomley@HansenPartnership.com>

commit 3417c1b5cb1fdc10261dbed42b05cc93166a78fd upstream.

Simple enclosure implementations (mostly USB) are allowed to return only
page 8 to every diagnostic query.  That really confuses our
implementation because we assume the return is the page we asked for and
end up doing incorrect offsets based on bogus information leading to
accesses outside of allocated ranges.  Fix that by checking the page
code of the return and giving an error if it isn't the one we asked for.
This should fix reported bugs with USB storage by simply refusing to
attach to enclosures that behave like this.  It's also good defensive
practise now that we're starting to see more USB enclosures.

Reported-by: Andrea Gelmini <andrea.gelmini@gelma.net>
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>
---
 drivers/scsi/ses.c | 20 +++++++++++++++++++-
 1 file changed, 19 insertions(+), 1 deletion(-)

diff --git a/drivers/scsi/ses.c b/drivers/scsi/ses.c
index 80bfece1a2de..20e4335e550b 100644
--- a/drivers/scsi/ses.c
+++ b/drivers/scsi/ses.c
@@ -71,6 +71,7 @@ static int ses_probe(struct device *dev)
 static int ses_recv_diag(struct scsi_device *sdev, int page_code,
 			 void *buf, int bufflen)
 {
+	int ret;
 	unsigned char cmd[] = {
 		RECEIVE_DIAGNOSTIC,
 		1,		/* Set PCV bit */
@@ -79,9 +80,26 @@ static int ses_recv_diag(struct scsi_device *sdev, int page_code,
 		bufflen & 0xff,
 		0
 	};
+	unsigned char recv_page_code;
 
-	return scsi_execute_req(sdev, cmd, DMA_FROM_DEVICE, buf, bufflen,
+	ret =  scsi_execute_req(sdev, cmd, DMA_FROM_DEVICE, buf, bufflen,
 				NULL, SES_TIMEOUT, SES_RETRIES, NULL);
+	if (unlikely(!ret))
+		return ret;
+
+	recv_page_code = ((unsigned char *)buf)[0];
+
+	if (likely(recv_page_code == page_code))
+		return ret;
+
+	/* successful diagnostic but wrong page code.  This happens to some
+	 * USB devices, just print a message and pretend there was an error */
+
+	sdev_printk(KERN_ERR, sdev,
+		    "Wrong diagnostic page; asked for %d got %u\n",
+		    page_code, recv_page_code);
+
+	return -EINVAL;
 }
 
 static int ses_send_diag(struct scsi_device *sdev, int page_code,

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#1316086 — [PATCH 3.16.y-ckt 076/128] xen-blkback: only read request operation from shared ring once

3.16.7-ckt23 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: =?UTF-8?q?Roger=20Pau=20Monn=C3=A9?= <roger.pau@citrix.com>

commit 1f13d75ccb806260079e0679d55d9253e370ec8a upstream.

A compiler may load a switch statement value multiple times, which could
be bad when the value is in memory shared with the frontend.

When converting a non-native request to a native one, ensure that
src->operation is only loaded once by using READ_ONCE().

This is part of XSA155.

Signed-off-by: Roger Pau Monné <roger.pau@citrix.com>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
[ luis: backported to 3.16:
  - replaced READ_ONCE() by ACCESS_ONCE() ]
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>
---
 drivers/block/xen-blkback/common.h | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/block/xen-blkback/common.h b/drivers/block/xen-blkback/common.h
index f65b807e3236..ef64f59921a7 100644
--- a/drivers/block/xen-blkback/common.h
+++ b/drivers/block/xen-blkback/common.h
@@ -391,8 +391,8 @@ static inline void blkif_get_x86_32_req(struct blkif_request *dst,
 					struct blkif_x86_32_request *src)
 {
 	int i, n = BLKIF_MAX_SEGMENTS_PER_REQUEST, j;
-	dst->operation = src->operation;
-	switch (src->operation) {
+	dst->operation = ACCESS_ONCE(src->operation);
+	switch (dst->operation) {
 	case BLKIF_OP_READ:
 	case BLKIF_OP_WRITE:
 	case BLKIF_OP_WRITE_BARRIER:
@@ -439,8 +439,8 @@ static inline void blkif_get_x86_64_req(struct blkif_request *dst,
 					struct blkif_x86_64_request *src)
 {
 	int i, n = BLKIF_MAX_SEGMENTS_PER_REQUEST, j;
-	dst->operation = src->operation;
-	switch (src->operation) {
+	dst->operation = ACCESS_ONCE(src->operation);
+	switch (dst->operation) {
 	case BLKIF_OP_READ:
 	case BLKIF_OP_WRITE:
 	case BLKIF_OP_WRITE_BARRIER:

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#1316087 — [PATCH 3.16.y-ckt 066/128] ALSA: hda - Add a fixup for Thinkpad X1 Carbon 2nd

3.16.7-ckt23 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Takashi Iwai <tiwai@suse.de>

commit b6903c0ed9f0bcbbe88f67f7ed43d1721cbc6235 upstream.

Apply the same fixup for Thinkpad with dock to Thinkpad X1 Carbon 2nd,
too.  This reduces the annoying loud cracking noise problem, as well
as the support of missing docking port.

Bugzilla: https://bugzilla.suse.com/show_bug.cgi?id=958439
Reported-and-tested-by: Benjamin Poirier <bpoirier@suse.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>
---
 sound/pci/hda/patch_realtek.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 148957ca1d04..34806487e54f 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -4986,6 +4986,7 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
 	SND_PCI_QUIRK(0x17aa, 0x2212, "Thinkpad T440", ALC292_FIXUP_TPT440_DOCK),
 	SND_PCI_QUIRK(0x17aa, 0x2214, "Thinkpad X240", ALC292_FIXUP_TPT440_DOCK),
 	SND_PCI_QUIRK(0x17aa, 0x2215, "Thinkpad", ALC269_FIXUP_LIMIT_INT_MIC_BOOST),
+	SND_PCI_QUIRK(0x17aa, 0x2218, "Thinkpad X1 Carbon 2nd", ALC292_FIXUP_TPT440_DOCK),
 	SND_PCI_QUIRK(0x17aa, 0x2223, "ThinkPad T550", ALC292_FIXUP_TPT440_DOCK),
 	SND_PCI_QUIRK(0x17aa, 0x2226, "ThinkPad X250", ALC292_FIXUP_TPT440_DOCK),
 	SND_PCI_QUIRK(0x17aa, 0x2233, "Thinkpad", ALC293_FIXUP_LENOVO_SPK_NOISE),

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#1316088 — [PATCH 3.16.y-ckt 072/128] powerpc/powernv: pr_warn_once on unsupported OPAL_MSG type

3.16.7-ckt23 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Stewart Smith <stewart@linux.vnet.ibm.com>

commit 98da62b716a3b24ab8e77453c9a8a954124c18cd upstream.

When running on newer OPAL firmware that supports sending extra
OPAL_MSG types, we would print a warning on *every* message received.

This could be a problem for kernels that don't support OPAL_MSG_OCC
on machines that are running real close to thermal limits and the
OCC is throttling the chip. For a kernel that is paying attention to
the message queue, we could get these notifications quite often.

Conceivably, future message types could also come fairly often,
and printing that we didn't understand them 10,000 times provides
no further information than printing them once.

Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>
---
 arch/powerpc/platforms/powernv/opal.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/platforms/powernv/opal.c b/arch/powerpc/platforms/powernv/opal.c
index d5e5794db989..0fa7178d36dc 100644
--- a/arch/powerpc/platforms/powernv/opal.c
+++ b/arch/powerpc/platforms/powernv/opal.c
@@ -329,7 +329,7 @@ static void opal_handle_message(void)
 
 	/* Sanity check */
 	if (type >= OPAL_MSG_TYPE_MAX) {
-		pr_warning("%s: Unknown message type: %u\n", __func__, type);
+		pr_warn_once("%s: Unknown message type: %u\n", __func__, type);
 		return;
 	}
 	opal_message_do_notify(type, (void *)&msg);

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#1316089 — [PATCH 3.16.y-ckt 065/128] ARM: 8471/1: need to save/restore arm register(r11) when it is corrupted

3.16.7-ckt23 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Anson Huang <Anson.Huang@freescale.com>

commit fa0708b320f6da4c1104fe56e01b7abf66fd16ad upstream.

In cpu_v7_do_suspend routine, r11 is used while it is NOT
saved/restored, different compiler may have different usage
of ARM general registers, so it may cause issues during
calling cpu_v7_do_suspend.

We meet kernel fault occurs when using GCC 4.8.3, r11 contains
valid value before calling into cpu_v7_do_suspend, but when returned
from this routine, r11 is corrupted and lead to kernel fault.
Doing save/restore for those corrupted registers is a must in
assemble code.

Signed-off-by: Anson Huang <Anson.Huang@freescale.com>
Reviewed-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>
---
 arch/arm/mm/proc-v7.S | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/mm/proc-v7.S b/arch/arm/mm/proc-v7.S
index 0eba0d1fd65a..ce9444e9d001 100644
--- a/arch/arm/mm/proc-v7.S
+++ b/arch/arm/mm/proc-v7.S
@@ -95,7 +95,7 @@ ENDPROC(cpu_v7_dcache_clean_area)
 .equ	cpu_v7_suspend_size, 4 * 9
 #ifdef CONFIG_ARM_CPU_SUSPEND
 ENTRY(cpu_v7_do_suspend)
-	stmfd	sp!, {r4 - r10, lr}
+	stmfd	sp!, {r4 - r11, lr}
 	mrc	p15, 0, r4, c13, c0, 0	@ FCSE/PID
 	mrc	p15, 0, r5, c13, c0, 3	@ User r/o thread ID
 	stmia	r0!, {r4 - r5}
@@ -112,7 +112,7 @@ ENTRY(cpu_v7_do_suspend)
 	mrc	p15, 0, r9, c1, c0, 1	@ Auxiliary control register
 	mrc	p15, 0, r10, c1, c0, 2	@ Co-processor access control
 	stmia	r0, {r5 - r11}
-	ldmfd	sp!, {r4 - r10, pc}
+	ldmfd	sp!, {r4 - r11, pc}
 ENDPROC(cpu_v7_do_suspend)
 
 ENTRY(cpu_v7_do_resume)

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#1316090 — [PATCH 3.16.y-ckt 053/128] i2c: mv64xxx: The n clockdiv factor is 0 based on sunxi SoCs

3.16.7-ckt23 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Hans de Goede <hdegoede@redhat.com>

commit bba61f50f76574ca5b84b310925be7c2e8e64275 upstream.

According to the datasheets the n factor for dividing the tclk is
2 to the power n on Allwinner SoCs, not 2 to the power n + 1 as it is
on other mv64xxx implementations.

I've contacted Allwinner about this and they have confirmed that the
datasheet is correct.

This commit fixes the clk-divider calculations for Allwinner SoCs
accordingly.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Tested-by: Olliver Schinagl <oliver@schinagl.nl>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>
---
 drivers/i2c/busses/i2c-mv64xxx.c | 27 ++++++++++++++++++---------
 1 file changed, 18 insertions(+), 9 deletions(-)

diff --git a/drivers/i2c/busses/i2c-mv64xxx.c b/drivers/i2c/busses/i2c-mv64xxx.c
index 8cc08d4f5f40..82e43656825a 100644
--- a/drivers/i2c/busses/i2c-mv64xxx.c
+++ b/drivers/i2c/busses/i2c-mv64xxx.c
@@ -146,6 +146,8 @@ struct mv64xxx_i2c_data {
 	bool			errata_delay;
 	struct reset_control	*rstc;
 	bool			irq_clear_inverted;
+	/* Clk div is 2 to the power n, not 2 to the power n + 1 */
+	bool			clk_n_base_0;
 };
 
 static struct mv64xxx_i2c_regs mv64xxx_i2c_regs_mv64xxx = {
@@ -757,25 +759,29 @@ MODULE_DEVICE_TABLE(of, mv64xxx_i2c_of_match_table);
 #ifdef CONFIG_OF
 #ifdef CONFIG_HAVE_CLK
 static int
-mv64xxx_calc_freq(const int tclk, const int n, const int m)
+mv64xxx_calc_freq(struct mv64xxx_i2c_data *drv_data,
+		  const int tclk, const int n, const int m)
 {
-	return tclk / (10 * (m + 1) * (2 << n));
+	if (drv_data->clk_n_base_0)
+		return tclk / (10 * (m + 1) * (1 << n));
+	else
+		return tclk / (10 * (m + 1) * (2 << n));
 }
 
 static bool
-mv64xxx_find_baud_factors(const u32 req_freq, const u32 tclk, u32 *best_n,
-			  u32 *best_m)
+mv64xxx_find_baud_factors(struct mv64xxx_i2c_data *drv_data,
+			  const u32 req_freq, const u32 tclk)
 {
 	int freq, delta, best_delta = INT_MAX;
 	int m, n;
 
 	for (n = 0; n <= 7; n++)
 		for (m = 0; m <= 15; m++) {
-			freq = mv64xxx_calc_freq(tclk, n, m);
+			freq = mv64xxx_calc_freq(drv_data, tclk, n, m);
 			delta = req_freq - freq;
 			if (delta >= 0 && delta < best_delta) {
-				*best_m = m;
-				*best_n = n;
+				drv_data->freq_m = m;
+				drv_data->freq_n = n;
 				best_delta = delta;
 			}
 			if (best_delta == 0)
@@ -813,8 +819,11 @@ mv64xxx_of_config(struct mv64xxx_i2c_data *drv_data,
 	if (of_property_read_u32(np, "clock-frequency", &bus_freq))
 		bus_freq = 100000; /* 100kHz by default */
 
-	if (!mv64xxx_find_baud_factors(bus_freq, tclk,
-				       &drv_data->freq_n, &drv_data->freq_m)) {
+	if (of_device_is_compatible(np, "allwinner,sun4i-a10-i2c") ||
+	    of_device_is_compatible(np, "allwinner,sun6i-a31-i2c"))
+		drv_data->clk_n_base_0 = true;
+
+	if (!mv64xxx_find_baud_factors(drv_data, bus_freq, tclk)) {
 		rc = -EINVAL;
 		goto out;
 	}

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#1316091 — [PATCH 3.16.y-ckt 042/128] mm: hugetlb: fix hugepage memory leak caused by wrong reserve count

3.16.7-ckt23 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>

commit a88c769548047b21f76fd71e04b6a3300ff17160 upstream.

When dequeue_huge_page_vma() in alloc_huge_page() fails, we fall back on
alloc_buddy_huge_page() to directly create a hugepage from the buddy
allocator.

In that case, however, if alloc_buddy_huge_page() succeeds we don't
decrement h->resv_huge_pages, which means that successful
hugetlb_fault() returns without releasing the reserve count.  As a
result, subsequent hugetlb_fault() might fail despite that there are
still free hugepages.

This patch simply adds decrementing code on that code path.

I reproduced this problem when testing v4.3 kernel in the following situation:
 - the test machine/VM is a NUMA system,
 - hugepage overcommiting is enabled,
 - most of hugepages are allocated and there's only one free hugepage
   which is on node 0 (for example),
 - another program, which calls set_mempolicy(MPOL_BIND) to bind itself to
   node 1, tries to allocate a hugepage,
 - the allocation should fail but the reserve count is still hold.

Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Hillf Danton <hillf.zj@alibaba-inc.com>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
[ luis: backported to 3.16:
  - use 'chg' instead of 'gbl_chg'
  - adjusted context ]
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>
---
 mm/hugetlb.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index f3111955b701..b247049b534a 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -1398,7 +1398,10 @@ static struct page *alloc_huge_page(struct vm_area_struct *vma,
 		page = alloc_buddy_huge_page(h, NUMA_NO_NODE);
 		if (!page)
 			goto out_uncharge_cgroup;
-
+		if (!avoid_reserve && vma_has_reserves(vma, chg)) {
+			SetPagePrivate(page);
+			h->resv_huge_pages--;
+		}
 		spin_lock(&hugetlb_lock);
 		list_move(&page->lru, &h->hugepage_activelist);
 		/* Fall through */

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#1316092 — [PATCH 3.16.y-ckt 033/128] ALSA: hda - Fix noise problems on Thinkpad T440s

3.16.7-ckt23 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Takashi Iwai <tiwai@suse.de>

commit 9a811230481243f384b8036c6a558bfdbd961f78 upstream.

Lenovo Thinkpad T440s suffers from constant background noises, and it
seems to be a generic hardware issue on this model:
  https://forums.lenovo.com/t5/ThinkPad-T400-T500-and-newer-T/T440s-speaker-noise/td-p/1339883

As the noise comes from the analog loopback path, disabling the path
is the easy workaround.

Also, the machine gives significant cracking noises at PM suspend.  A
workaround found by trial-and-error is to disable the shutup callback
currently used for ALC269-variant.

This patch addresses these noise issues by introducing a new fixup
chain.  Although the same workaround might be applicable to other
Thinkpad models, it's applied only to T440s (17aa:220c) in this patch,
so far, just to be safe (you chicken!).  As a compromise, a new model
option string "tp440" is provided now, though, so that owners of other
Thinkpad models can test it more easily.

Bugzilla: https://bugzilla.opensuse.org/show_bug.cgi?id=958504
Reported-and-tested-by: Tim Hardeck <thardeck@suse.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
[ luis: backported to 3.16: adjusted context ]
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>
---
 sound/pci/hda/patch_realtek.c | 22 +++++++++++++++++++++-
 1 file changed, 21 insertions(+), 1 deletion(-)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index e3a98869b1b6..148957ca1d04 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -4029,6 +4029,18 @@ static void alc_fixup_disable_aamix(struct hda_codec *codec,
 	}
 }
 
+/* additional fixup for Thinkpad T440s noise problem */
+static void alc_fixup_tpt440(struct hda_codec *codec,
+				  const struct hda_fixup *fix, int action)
+{
+	struct alc_spec *spec = codec->spec;
+
+	if (action == HDA_FIXUP_ACT_PRE_PROBE) {
+		spec->shutup = alc_no_shutup; /* reduce click noise */
+		spec->gen.mixer_nid = 0; /* reduce background noise */
+	}
+}
+
 static unsigned int alc_power_filter_xps13(struct hda_codec *codec,
 				hda_nid_t nid,
 				unsigned int power_state)
@@ -4325,6 +4337,7 @@ enum {
 	ALC293_FIXUP_DELL1_MIC_NO_PRESENCE,
 	ALC292_FIXUP_TPT440_DOCK,
 	ALC292_FIXUP_TPT440_DOCK2,
+	ALC292_FIXUP_TPT440,
 	ALC275_FIXUP_DELL_XPS,
 	ALC256_FIXUP_DELL_XPS_13_HEADPHONE_NOISE,
 	ALC293_FIXUP_LENOVO_SPK_NOISE,
@@ -4780,6 +4793,12 @@ static const struct hda_fixup alc269_fixups[] = {
 		.chained = true,
 		.chain_id = ALC269_FIXUP_LIMIT_INT_MIC_BOOST
 	},
+	[ALC292_FIXUP_TPT440] = {
+		.type = HDA_FIXUP_FUNC,
+		.v.func = alc_fixup_tpt440,
+		.chained = true,
+		.chain_id = ALC292_FIXUP_TPT440_DOCK,
+	},
 	[ALC275_FIXUP_DELL_XPS] = {
 		.type = HDA_FIXUP_VERBS,
 		.v.verbs = (const struct hda_verb[]) {
@@ -4961,7 +4980,7 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
 	SND_PCI_QUIRK(0x17aa, 0x21fb, "Thinkpad T430s", ALC269_FIXUP_LENOVO_DOCK),
 	SND_PCI_QUIRK(0x17aa, 0x2203, "Thinkpad X230 Tablet", ALC269_FIXUP_LENOVO_DOCK),
 	SND_PCI_QUIRK(0x17aa, 0x2208, "Thinkpad T431s", ALC269_FIXUP_LENOVO_DOCK),
-	SND_PCI_QUIRK(0x17aa, 0x220c, "Thinkpad T440s", ALC292_FIXUP_TPT440_DOCK),
+	SND_PCI_QUIRK(0x17aa, 0x220c, "Thinkpad T440s", ALC292_FIXUP_TPT440),
 	SND_PCI_QUIRK(0x17aa, 0x220e, "Thinkpad T440p", ALC292_FIXUP_TPT440_DOCK),
 	SND_PCI_QUIRK(0x17aa, 0x2210, "Thinkpad T540p", ALC292_FIXUP_TPT440_DOCK),
 	SND_PCI_QUIRK(0x17aa, 0x2212, "Thinkpad T440", ALC292_FIXUP_TPT440_DOCK),
@@ -5050,6 +5069,7 @@ static const struct hda_model_fixup alc269_fixup_models[] = {
 	{.id = ALC283_FIXUP_CHROME_BOOK, .name = "alc283-dac-wcaps"},
 	{.id = ALC283_FIXUP_SENSE_COMBO_JACK, .name = "alc283-sense-combo"},
 	{.id = ALC292_FIXUP_TPT440_DOCK, .name = "tpt440-dock"},
+	{.id = ALC292_FIXUP_TPT440, .name = "tpt440"},
 	{}
 };
 

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#1316093 — [PATCH 3.16.y-ckt 049/128] efi: Disable interrupts around EFI calls, not in the epilog/prolog calls

3.16.7-ckt23 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Ingo Molnar <mingo@kernel.org>

commit 23a0d4e8fa6d3a1d7fb819f79bcc0a3739c30ba9 upstream.

Tapasweni Pathak reported that we do a kmalloc() in efi_call_phys_prolog()
on x86-64 while having interrupts disabled, which is a big no-no, as
kmalloc() can sleep.

Solve this by removing the irq disabling from the prolog/epilog calls
around EFI calls: it's unnecessary, as in this stage we are single
threaded in the boot thread, and we don't ever execute this from
interrupt contexts.

Reported-by: Tapasweni Pathak <tapaswenipathak@gmail.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
[ luis: backported to 3.16: adjusted context ]
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>
---
 arch/x86/platform/efi/efi.c    |  7 +++++++
 arch/x86/platform/efi/efi_32.c | 11 +++--------
 arch/x86/platform/efi/efi_64.c |  3 ---
 3 files changed, 10 insertions(+), 11 deletions(-)

diff --git a/arch/x86/platform/efi/efi.c b/arch/x86/platform/efi/efi.c
index 5bbb477f5c2a..09c8ac286cd5 100644
--- a/arch/x86/platform/efi/efi.c
+++ b/arch/x86/platform/efi/efi.c
@@ -236,12 +236,19 @@ static efi_status_t __init phys_efi_set_virtual_address_map(
 	efi_memory_desc_t *virtual_map)
 {
 	efi_status_t status;
+	unsigned long flags;
 
 	efi_call_phys_prelog();
+
+	/* Disable interrupts around EFI calls: */
+	local_irq_save(flags);
 	status = efi_call_phys(efi_phys.set_virtual_address_map,
 			       memory_map_size, descriptor_size,
 			       descriptor_version, virtual_map);
+	local_irq_restore(flags);
+
 	efi_call_phys_epilog();
+
 	return status;
 }
 
diff --git a/arch/x86/platform/efi/efi_32.c b/arch/x86/platform/efi/efi_32.c
index 9ee3491e31fb..be4e7eb41674 100644
--- a/arch/x86/platform/efi/efi_32.c
+++ b/arch/x86/platform/efi/efi_32.c
@@ -33,11 +33,10 @@
 
 /*
  * To make EFI call EFI runtime service in physical addressing mode we need
- * prelog/epilog before/after the invocation to disable interrupt, to
- * claim EFI runtime service handler exclusively and to duplicate a memory in
- * low memory space say 0 - 3G.
+ * prolog/epilog before/after the invocation to claim the EFI runtime service
+ * handler exclusively and to duplicate a memory mapping in low memory space,
+ * say 0 - 3G.
  */
-static unsigned long efi_rt_eflags;
 
 void efi_sync_low_kernel_mappings(void) {}
 void __init efi_dump_pagetable(void) {}
@@ -59,8 +58,6 @@ void efi_call_phys_prelog(void)
 {
 	struct desc_ptr gdt_descr;
 
-	local_irq_save(efi_rt_eflags);
-
 	load_cr3(initial_page_table);
 	__flush_tlb_all();
 
@@ -79,8 +76,6 @@ void efi_call_phys_epilog(void)
 
 	load_cr3(swapper_pg_dir);
 	__flush_tlb_all();
-
-	local_irq_restore(efi_rt_eflags);
 }
 
 void __init efi_runtime_mkexec(void)
diff --git a/arch/x86/platform/efi/efi_64.c b/arch/x86/platform/efi/efi_64.c
index 290d397e1dd9..8139b4858403 100644
--- a/arch/x86/platform/efi/efi_64.c
+++ b/arch/x86/platform/efi/efi_64.c
@@ -42,7 +42,6 @@
 #include <asm/time.h>
 
 static pgd_t *save_pgd __initdata;
-static unsigned long efi_flags __initdata;
 
 /*
  * We allocate runtime services regions bottom-up, starting from -4G, i.e.
@@ -89,7 +88,6 @@ void __init efi_call_phys_prelog(void)
 		return;
 
 	early_code_mapping_set_exec(1);
-	local_irq_save(efi_flags);
 
 	n_pgds = DIV_ROUND_UP((max_pfn << PAGE_SHIFT), PGDIR_SIZE);
 	save_pgd = kmalloc(n_pgds * sizeof(pgd_t), GFP_KERNEL);
@@ -117,7 +115,6 @@ void __init efi_call_phys_epilog(void)
 		set_pgd(pgd_offset_k(pgd * PGDIR_SIZE), save_pgd[pgd]);
 	kfree(save_pgd);
 	__flush_tlb_all();
-	local_irq_restore(efi_flags);
 	early_code_mapping_set_exec(0);
 }
 

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#1316094 — [PATCH 3.16.y-ckt 039/128] xhci: fix usb2 resume timing and races.

3.16.7-ckt23 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Mathias Nyman <mathias.nyman@linux.intel.com>

commit f69115fdbc1ac0718e7d19ad3caa3da2ecfe1c96 upstream.

According to USB 2 specs ports need to signal resume for at least 20ms,
in practice even longer, before moving to U0 state.
Both host and devices can initiate resume.

On device initiated resume, a port status interrupt with the port in resume
state in issued. The interrupt handler tags a resume_done[port]
timestamp with current time + USB_RESUME_TIMEOUT, and kick roothub timer.
Root hub timer requests for port status, finds the port in resume state,
checks if resume_done[port] timestamp passed, and set port to U0 state.

On host initiated resume, current code sets the port to resume state,
sleep 20ms, and finally sets the port to U0 state. This should also
be changed to work in a similar way as the device initiated resume, with
timestamp tagging, but that is not yet tested and will be a separate
fix later.

There are a few issues with this approach

1. A host initiated resume will also generate a resume event. The event
   handler will find the port in resume state, believe it's a device
   initiated resume, and act accordingly.

2. A port status request might cut the resume signalling short if a
   get_port_status request is handled during the host resume signalling.
   The port will be found in resume state. The timestamp is not set leading
   to time_after_eq(jiffies, timestamp) returning true, as timestamp = 0.
   get_port_status will proceed with moving the port to U0.

3. If an error, or anything else happens to the port during device
   initiated resume signalling it will leave all the device resume
   parameters hanging uncleared, preventing further suspend, returning
   -EBUSY, and cause the pm thread to busyloop trying to enter suspend.

Fix this by using the existing resuming_ports bitfield to indicate that
resume signalling timing is taken care of.
Check if the resume_done[port] is set before using it for timestamp
comparison, and also clear out any resume signalling related variables
if port is not in U0 or Resume state

This issue was discovered when a PM thread busylooped, trying to runtime
suspend the xhci USB 2 roothub on a Dell XPS

Reported-by: Daniel J Blueman <daniel@quora.org>
Tested-by: Daniel J Blueman <daniel@quora.org>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>
---
 drivers/usb/host/xhci-hub.c  | 47 +++++++++++++++++++++++++++++++++++++++-----
 drivers/usb/host/xhci-ring.c |  3 ++-
 2 files changed, 44 insertions(+), 6 deletions(-)

diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c
index 625fdd8b3537..69a70f880429 100644
--- a/drivers/usb/host/xhci-hub.c
+++ b/drivers/usb/host/xhci-hub.c
@@ -609,8 +609,30 @@ static u32 xhci_get_port_status(struct usb_hcd *hcd,
 		if ((raw_port_status & PORT_RESET) ||
 				!(raw_port_status & PORT_PE))
 			return 0xffffffff;
-		if (time_after_eq(jiffies,
-					bus_state->resume_done[wIndex])) {
+		/* did port event handler already start resume timing? */
+		if (!bus_state->resume_done[wIndex]) {
+			/* If not, maybe we are in a host initated resume? */
+			if (test_bit(wIndex, &bus_state->resuming_ports)) {
+				/* Host initated resume doesn't time the resume
+				 * signalling using resume_done[].
+				 * It manually sets RESUME state, sleeps 20ms
+				 * and sets U0 state. This should probably be
+				 * changed, but not right now.
+				 */
+			} else {
+				/* port resume was discovered now and here,
+				 * start resume timing
+				 */
+				unsigned long timeout = jiffies +
+					msecs_to_jiffies(USB_RESUME_TIMEOUT);
+
+				set_bit(wIndex, &bus_state->resuming_ports);
+				bus_state->resume_done[wIndex] = timeout;
+				mod_timer(&hcd->rh_timer, timeout);
+			}
+		/* Has resume been signalled for USB_RESUME_TIME yet? */
+		} else if (time_after_eq(jiffies,
+					 bus_state->resume_done[wIndex])) {
 			int time_left;
 
 			xhci_dbg(xhci, "Resume USB2 port %d\n",
@@ -651,13 +673,26 @@ static u32 xhci_get_port_status(struct usb_hcd *hcd,
 		} else {
 			/*
 			 * The resume has been signaling for less than
-			 * 20ms. Report the port status as SUSPEND,
-			 * let the usbcore check port status again
-			 * and clear resume signaling later.
+			 * USB_RESUME_TIME. Report the port status as SUSPEND,
+			 * let the usbcore check port status again and clear
+			 * resume signaling later.
 			 */
 			status |= USB_PORT_STAT_SUSPEND;
 		}
 	}
+	/*
+	 * Clear stale usb2 resume signalling variables in case port changed
+	 * state during resume signalling. For example on error
+	 */
+	if ((bus_state->resume_done[wIndex] ||
+	     test_bit(wIndex, &bus_state->resuming_ports)) &&
+	    (raw_port_status & PORT_PLS_MASK) != XDEV_U3 &&
+	    (raw_port_status & PORT_PLS_MASK) != XDEV_RESUME) {
+		bus_state->resume_done[wIndex] = 0;
+		clear_bit(wIndex, &bus_state->resuming_ports);
+	}
+
+
 	if ((raw_port_status & PORT_PLS_MASK) == XDEV_U0 &&
 	    (raw_port_status & PORT_POWER)) {
 		if (bus_state->suspended_ports & (1 << wIndex)) {
@@ -991,6 +1026,7 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
 				if ((temp & PORT_PE) == 0)
 					goto error;
 
+				set_bit(wIndex, &bus_state->resuming_ports);
 				xhci_set_link_state(xhci, port_array, wIndex,
 							XDEV_RESUME);
 				spin_unlock_irqrestore(&xhci->lock, flags);
@@ -998,6 +1034,7 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
 				spin_lock_irqsave(&xhci->lock, flags);
 				xhci_set_link_state(xhci, port_array, wIndex,
 							XDEV_U0);
+				clear_bit(wIndex, &bus_state->resuming_ports);
 			}
 			bus_state->port_c_suspend |= 1 << wIndex;
 
diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index 93cbefdacd31..22c9bca66569 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -1620,7 +1620,8 @@ static void handle_port_status(struct xhci_hcd *xhci,
 			 */
 			bogus_port_status = true;
 			goto cleanup;
-		} else {
+		} else if (!test_bit(faked_port_index,
+				     &bus_state->resuming_ports)) {
 			xhci_dbg(xhci, "resume HS port %d\n", port_id);
 			bus_state->resume_done[faked_port_index] = jiffies +
 				msecs_to_jiffies(USB_RESUME_TIMEOUT);

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#1316097 — [PATCH 3.16.y-ckt 046/128] ocfs2: fix SGID not inherited issue

3.16.7-ckt23 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Junxiao Bi <junxiao.bi@oracle.com>

commit 854ee2e944b4daf795e32562a7d2f9e90ab5a6a8 upstream.

Commit 8f1eb48758aa ("ocfs2: fix umask ignored issue") introduced an
issue, SGID of sub dir was not inherited from its parents dir.  It is
because SGID is set into "inode->i_mode" in ocfs2_get_init_inode(), but
is overwritten by "mode" which don't have SGID set later.

Fixes: 8f1eb48758aa ("ocfs2: fix umask ignored issue")
Signed-off-by: Junxiao Bi <junxiao.bi@oracle.com>
Cc: Mark Fasheh <mfasheh@suse.de>
Cc: Joel Becker <jlbec@evilplan.org>
Acked-by: Srinivas Eeda <srinivas.eeda@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>
---
 fs/ocfs2/namei.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/fs/ocfs2/namei.c b/fs/ocfs2/namei.c
index dbf21ca69ee8..e2f3a6c5224f 100644
--- a/fs/ocfs2/namei.c
+++ b/fs/ocfs2/namei.c
@@ -356,13 +356,11 @@ static int ocfs2_mknod(struct inode *dir,
 		goto leave;
 	}
 
-	status = posix_acl_create(dir, &mode, &default_acl, &acl);
+	status = posix_acl_create(dir, &inode->i_mode, &default_acl, &acl);
 	if (status) {
 		mlog_errno(status);
 		goto leave;
 	}
-	/* update inode->i_mode after mask with "umask". */
-	inode->i_mode = mode;
 
 	handle = ocfs2_start_trans(osb, ocfs2_mknod_credits(osb->sb,
 							    S_ISDIR(mode),

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#1316098 — [PATCH 3.16.y-ckt 045/128] drivers/base/memory.c: prohibit offlining of memory blocks with missing sections

3.16.7-ckt23 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Seth Jennings <sjennings@variantweb.net>

commit 26bbe7ef6d5cdc7ec08cba6d433fca4060f258f3 upstream.

Commit bdee237c0343 ("x86: mm: Use 2GB memory block size on large-memory
x86-64 systems") and 982792c782ef ("x86, mm: probe memory block size for
generic x86 64bit") introduced large block sizes for x86.  This made it
possible to have multiple sections per memory block where previously,
there was a only every one section per block.

Since blocks consist of contiguous ranges of section, there can be holes
in the blocks where sections are not present.  If one attempts to
offline such a block, a crash occurs since the code is not designed to
deal with this.

This patch is a quick fix to gaurd against the crash by not allowing
blocks with non-present sections to be offlined.

Addresses https://bugzilla.kernel.org/show_bug.cgi?id=107781

Signed-off-by: Seth Jennings <sjennings@variantweb.net>
Reported-by: Andrew Banman <abanman@sgi.com>
Cc: Daniel J Blueman <daniel@numascale.com>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Greg KH <greg@kroah.com>
Cc: Russ Anderson <rja@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>
---
 drivers/base/memory.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/base/memory.c b/drivers/base/memory.c
index 89f752dd8465..0b5c02ab1ef0 100644
--- a/drivers/base/memory.c
+++ b/drivers/base/memory.c
@@ -301,6 +301,10 @@ static int memory_subsys_offline(struct device *dev)
 	if (mem->state == MEM_OFFLINE)
 		return 0;
 
+	/* Can't offline block with non-present sections */
+	if (mem->section_count != sections_per_block)
+		return -EINVAL;
+
 	return memory_block_change_state(mem, MEM_OFFLINE, MEM_ONLINE);
 }
 

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#1316099 — [PATCH 3.16.y-ckt 005/128] USB: cdc_acm: Ignore Infineon Flash Loader utility

3.16.7-ckt23 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Jonas Jonsson <jonas@ludd.ltu.se>

commit f33a7f72e5fc033daccbb8d4753d7c5c41a4d67b upstream.

Some modems, such as the Telit UE910, are using an Infineon Flash Loader
utility. It has two interfaces, 2/2/0 (Abstract Modem) and 10/0/0 (CDC
Data). The latter can be used as a serial interface to upgrade the
firmware of the modem. However, that isn't possible when the cdc-acm
driver takes control of the device.

The following is an explanation of the behaviour by Daniele Palmas during
discussion on linux-usb.

"This is what happens when the device is turned on (without modifying
the drivers):

[155492.352031] usb 1-3: new high-speed USB device number 27 using ehci-pci
[155492.485429] usb 1-3: config 1 interface 0 altsetting 0 endpoint 0x81 has an invalid bInterval 255, changing to 11
[155492.485436] usb 1-3: New USB device found, idVendor=058b, idProduct=0041
[155492.485439] usb 1-3: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[155492.485952] cdc_acm 1-3:1.0: ttyACM0: USB ACM device

This is the flashing device that is caught by the cdc-acm driver. Once
the ttyACM appears, the application starts sending a magic string
(simple write on the file descriptor) to keep the device in flashing
mode. If this magic string is not properly received in a certain time
interval, the modem goes on in normal operative mode:

[155493.748094] usb 1-3: USB disconnect, device number 27
[155494.916025] usb 1-3: new high-speed USB device number 28 using ehci-pci
[155495.059978] usb 1-3: New USB device found, idVendor=1bc7, idProduct=0021
[155495.059983] usb 1-3: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[155495.059986] usb 1-3: Product: 6 CDC-ACM + 1 CDC-ECM
[155495.059989] usb 1-3: Manufacturer: Telit
[155495.059992] usb 1-3: SerialNumber: 359658044004697
[155495.138958] cdc_acm 1-3:1.0: ttyACM0: USB ACM device
[155495.140832] cdc_acm 1-3:1.2: ttyACM1: USB ACM device
[155495.142827] cdc_acm 1-3:1.4: ttyACM2: USB ACM device
[155495.144462] cdc_acm 1-3:1.6: ttyACM3: USB ACM device
[155495.145967] cdc_acm 1-3:1.8: ttyACM4: USB ACM device
[155495.147588] cdc_acm 1-3:1.10: ttyACM5: USB ACM device
[155495.154322] cdc_ether 1-3:1.12 wwan0: register 'cdc_ether' at usb-0000:00:1a.7-3, Mobile Broadband Network Device, 00:00:11:12:13:14

Using the cdc-acm driver, the string, though being sent in the same way
than using the usb-serial-simple driver (I can confirm that the data is
passing properly since I used an hw usb sniffer), does not make the
device to stay in flashing mode."

Signed-off-by: Jonas Jonsson <jonas@ludd.ltu.se>
Tested-by: Daniele Palmas <dnlplm@gmail.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>
---
 drivers/usb/class/cdc-acm.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
index 54c79f7fdaf5..f2dc4628fb05 100644
--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -1856,6 +1856,11 @@ static const struct usb_device_id acm_ids[] = {
 	},
 #endif
 
+	/* Exclude Infineon Flash Loader utility */
+	{ USB_DEVICE(0x058b, 0x0041),
+	.driver_info = IGNORE_DEVICE,
+	},
+
 	/* control interfaces without any protocol set */
 	{ USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_ACM,
 		USB_CDC_PROTO_NONE) },

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#1316100 — [PATCH 3.16.y-ckt 010/128] AHCI: Fix softreset failed issue of Port Multiplier

3.16.7-ckt23 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Xiangliang Yu <Xiangliang.Yu@amd.com>

commit 023113d24ef9e1d2b44cb2446872b17e2b01d8b1 upstream.

Current code doesn't update port value of Port Multiplier(PM) when
sending FIS of softreset to device, command will fail if FBS is
enabled.

There are two ways to fix the issue: the first is to disable FBS
before sending softreset command to PM device and the second is
to update port value of PM when sending command.

For the first way, i can't find any related rule in AHCI Spec. The
second way can avoid disabling FBS and has better performance.

Signed-off-by: Xiangliang Yu <Xiangliang.Yu@amd.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>
---
 drivers/ata/libahci.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/ata/libahci.c b/drivers/ata/libahci.c
index 86c3c24b835f..a0bfdcfafd92 100644
--- a/drivers/ata/libahci.c
+++ b/drivers/ata/libahci.c
@@ -1271,6 +1271,15 @@ static int ahci_exec_polled_cmd(struct ata_port *ap, int pmp,
 	ata_tf_to_fis(tf, pmp, is_cmd, fis);
 	ahci_fill_cmd_slot(pp, 0, cmd_fis_len | flags | (pmp << 12));
 
+	/* set port value for softreset of Port Multiplier */
+	if (pp->fbs_enabled && pp->fbs_last_dev != pmp) {
+		tmp = readl(port_mmio + PORT_FBS);
+		tmp &= ~(PORT_FBS_DEV_MASK | PORT_FBS_DEC);
+		tmp |= pmp << PORT_FBS_DEV_OFFSET;
+		writel(tmp, port_mmio + PORT_FBS);
+		pp->fbs_last_dev = pmp;
+	}
+
 	/* issue & wait */
 	writel(1, port_mmio + PORT_CMD_ISSUE);
 

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#1316102 — [PATCH 3.16.y-ckt 031/128] radeon: Fix VCE ring test for Big-Endian systems

3.16.7-ckt23 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Oded Gabbay <oded.gabbay@gmail.com>

commit 687f4b98d1f4e27508f7ad4bcce787c1ba58b289 upstream.

This patch fixes the VCE ring test when running on Big-Endian machines.
Every write to the ring needs to be translated to little-endian.

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
[ luis: backported to 3.16: adjusted context ]
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>
---
 drivers/gpu/drm/radeon/radeon_vce.c | 32 ++++++++++++++++----------------
 1 file changed, 16 insertions(+), 16 deletions(-)

diff --git a/drivers/gpu/drm/radeon/radeon_vce.c b/drivers/gpu/drm/radeon/radeon_vce.c
index 2944637b8b44..252868f1bcda 100644
--- a/drivers/gpu/drm/radeon/radeon_vce.c
+++ b/drivers/gpu/drm/radeon/radeon_vce.c
@@ -679,12 +679,12 @@ bool radeon_vce_semaphore_emit(struct radeon_device *rdev,
 {
 	uint64_t addr = semaphore->gpu_addr;
 
-	radeon_ring_write(ring, VCE_CMD_SEMAPHORE);
-	radeon_ring_write(ring, (addr >> 3) & 0x000FFFFF);
-	radeon_ring_write(ring, (addr >> 23) & 0x000FFFFF);
-	radeon_ring_write(ring, 0x01003000 | (emit_wait ? 1 : 0));
+	radeon_ring_write(ring, cpu_to_le32(VCE_CMD_SEMAPHORE));
+	radeon_ring_write(ring, cpu_to_le32((addr >> 3) & 0x000FFFFF));
+	radeon_ring_write(ring, cpu_to_le32((addr >> 23) & 0x000FFFFF));
+	radeon_ring_write(ring, cpu_to_le32(0x01003000 | (emit_wait ? 1 : 0)));
 	if (!emit_wait)
-		radeon_ring_write(ring, VCE_CMD_END);
+		radeon_ring_write(ring, cpu_to_le32(VCE_CMD_END));
 
 	return true;
 }
@@ -699,10 +699,10 @@ bool radeon_vce_semaphore_emit(struct radeon_device *rdev,
 void radeon_vce_ib_execute(struct radeon_device *rdev, struct radeon_ib *ib)
 {
 	struct radeon_ring *ring = &rdev->ring[ib->ring];
-	radeon_ring_write(ring, VCE_CMD_IB);
-	radeon_ring_write(ring, ib->gpu_addr);
-	radeon_ring_write(ring, upper_32_bits(ib->gpu_addr));
-	radeon_ring_write(ring, ib->length_dw);
+	radeon_ring_write(ring, cpu_to_le32(VCE_CMD_IB));
+	radeon_ring_write(ring, cpu_to_le32(ib->gpu_addr));
+	radeon_ring_write(ring, cpu_to_le32(upper_32_bits(ib->gpu_addr)));
+	radeon_ring_write(ring, cpu_to_le32(ib->length_dw));
 }
 
 /**
@@ -718,12 +718,12 @@ void radeon_vce_fence_emit(struct radeon_device *rdev,
 	struct radeon_ring *ring = &rdev->ring[fence->ring];
 	uint64_t addr = rdev->fence_drv[fence->ring].gpu_addr;
 
-	radeon_ring_write(ring, VCE_CMD_FENCE);
-	radeon_ring_write(ring, addr);
-	radeon_ring_write(ring, upper_32_bits(addr));
-	radeon_ring_write(ring, fence->seq);
-	radeon_ring_write(ring, VCE_CMD_TRAP);
-	radeon_ring_write(ring, VCE_CMD_END);
+	radeon_ring_write(ring, cpu_to_le32(VCE_CMD_FENCE));
+	radeon_ring_write(ring, cpu_to_le32(addr));
+	radeon_ring_write(ring, cpu_to_le32(upper_32_bits(addr)));
+	radeon_ring_write(ring, cpu_to_le32(fence->seq));
+	radeon_ring_write(ring, cpu_to_le32(VCE_CMD_TRAP));
+	radeon_ring_write(ring, cpu_to_le32(VCE_CMD_END));
 }
 
 /**
@@ -745,7 +745,7 @@ int radeon_vce_ring_test(struct radeon_device *rdev, struct radeon_ring *ring)
 			  ring->idx, r);
 		return r;
 	}
-	radeon_ring_write(ring, VCE_CMD_END);
+	radeon_ring_write(ring, cpu_to_le32(VCE_CMD_END));
 	radeon_ring_unlock_commit(rdev, ring);
 
 	for (i = 0; i < rdev->usec_timeout; i++) {

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#1316103 — [PATCH 3.16.y-ckt 004/128] USB: cp210x: Remove CP2110 ID from compatibility list

3.16.7-ckt23 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Konstantin Shkolnyy <konstantin.shkolnyy@gmail.com>

commit 7c90e610b60cd1ed6abafd806acfaedccbbe52d1 upstream.

CP2110 ID (0x10c4, 0xea80) doesn't belong here because it's a HID
and completely different from CP210x devices.

Signed-off-by: Konstantin Shkolnyy <konstantin.shkolnyy@gmail.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>
---
 drivers/usb/serial/cp210x.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/usb/serial/cp210x.c b/drivers/usb/serial/cp210x.c
index d11335d4395d..c2bdc5f2a4b1 100644
--- a/drivers/usb/serial/cp210x.c
+++ b/drivers/usb/serial/cp210x.c
@@ -132,7 +132,6 @@ static const struct usb_device_id id_table[] = {
 	{ USB_DEVICE(0x10C4, 0xEA60) }, /* Silicon Labs factory default */
 	{ USB_DEVICE(0x10C4, 0xEA61) }, /* Silicon Labs factory default */
 	{ USB_DEVICE(0x10C4, 0xEA70) }, /* Silicon Labs factory default */
-	{ USB_DEVICE(0x10C4, 0xEA80) }, /* Silicon Labs factory default */
 	{ USB_DEVICE(0x10C4, 0xEA71) }, /* Infinity GPS-MIC-1 Radio Monophone */
 	{ USB_DEVICE(0x10C4, 0xF001) }, /* Elan Digital Systems USBscope50 */
 	{ USB_DEVICE(0x10C4, 0xF002) }, /* Elan Digital Systems USBwave12 */

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