1. 25 Jul, 2017 5 commits
    • John David Anglin's avatar
      parisc: Prevent TLB speculation on flushed pages on CPUs that only support equivalent aliases · ae7a609c
      John David Anglin authored
      Helge noticed that we flush the TLB page in flush_cache_page but not in
      flush_cache_range or flush_cache_mm.
      
      For a long time, we have had random segmentation faults building
      packages on machines with PA8800/8900 processors.  These machines only
      support equivalent aliases.  We don't see these faults on machines that
      don't require strict coherency.  So, it appears TLB speculation
      sometimes leads to cache corruption on machines that require coherency.
      
      This patch adds TLB flushes to flush_cache_range and flush_cache_mm when
      coherency is required.  We only flush the TLB in flush_cache_page when
      coherency is required.
      
      The patch also optimizes flush_cache_range.  It turns out we always have
      the right context to use flush_user_dcache_range_asm and
      flush_user_icache_range_asm.
      
      The patch has been tested for some time on rp3440, rp3410 and A500-44.
      It's been boot tested on c8000.  No random segmentation faults were
      observed during testing.
      Signed-off-by: default avatarJohn David Anglin <dave.anglin@bell.net>
      Cc: stable@vger.kernel.org # 4.9+
      Signed-off-by: default avatarHelge Deller <deller@gmx.de>
      ae7a609c
    • Helge Deller's avatar
      parisc: Suspend lockup detectors before system halt · 56188832
      Helge Deller authored
      Some machines can't power off the machine, so disable the lockup detectors to
      avoid this watchdog BUG to show up every few seconds:
      watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [systemd-shutdow:1]
      Signed-off-by: default avatarHelge Deller <deller@gmx.de>
      Cc: stable@vger.kernel.org # 4.9+
      56188832
    • Helge Deller's avatar
      parisc: Show DIMM slot number which holds broken memory module · c46bafc4
      Helge Deller authored
      The Page Deallocation Table (PDT) holds the physical addresses of all broken
      memory addresses. With the physical address we now are able to show which DIMM
      slot (e.g. 1a, 3c) actually holds the broken memory module so that users are
      able to replace it.
      Signed-off-by: default avatarHelge Deller <deller@gmx.de>
      c46bafc4
    • Helge Deller's avatar
      parisc: Add function to return DIMM slot of physical address · 25a9b765
      Helge Deller authored
      Add a firmware wrapper function, which asks PDC firmware for the DIMM slot of a
      physical address. This is needed to show users which DIMM module needs
      replacement in case a broken DIMM was encountered.
      Signed-off-by: default avatarHelge Deller <deller@gmx.de>
      25a9b765
    • Helge Deller's avatar
      parisc: Fix crash when calling PDC_PAT_MEM PDT firmware function · f520e552
      Helge Deller authored
      Commit c9c2877d ("parisc: Add Page Deallocation Table (PDT) support")
      introduced the pdc_pat_mem_read_pd_pdt() firmware helper function, which
      crashed the system because it trashed the stack if the
      pdc_pat_mem_read_pd_retinfo struct was located on the stack (and which is
      in size less than the required 32 64-bit values).
      
      Fix it by using the pdc_result struct instead when calling firmware and copy
      the return values back into the result struct when finished sucessfully.
      
      While debugging this code I noticed that the pdc_type wasn't set correctly
      either, so let's fix that too.
      
      Fixes: c9c2877d ("parisc: Add Page Deallocation Table (PDT) support")
      Signed-off-by: default avatarHelge Deller <deller@gmx.de>
      f520e552
  2. 23 Jul, 2017 9 commits
  3. 22 Jul, 2017 6 commits
    • Linus Torvalds's avatar
      Merge tag 'hwmon-for-linus-v4.13-rc2' of... · 4b162c53
      Linus Torvalds authored
      Merge tag 'hwmon-for-linus-v4.13-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
      
      Pull hwmon fix from Guenter Roeck:
       "Avoid buffer overruns in applesmc driver"
      
      * tag 'hwmon-for-linus-v4.13-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
        hwmon: (applesmc) Avoid buffer overruns
      4b162c53
    • Linus Torvalds's avatar
      Merge tag 'tty-4.13-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty · ae75d1ae
      Linus Torvalds authored
      Pull tty/serial fixes from Greg KH:
       "Here are some small tty and serial driver fixes for 4.13-rc2. Nothing
        huge at all, a revert of a patch that turned out to break things, a
        fix up for a new tty ioctl we added in 4.13-rc1 to get the uapi
        definition correct, and a few minor serial driver fixes for reported
        issues.
      
        All of these have been in linux-next for a while with no reported
        issues"
      
      * tag 'tty-4.13-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
        tty: Fix TIOCGPTPEER ioctl definition
        tty: hide unused pty_get_peer function
        tty: serial: lpuart: Fix the logic for detecting the 32-bit type UART
        serial: imx: Prevent TX buffer PIO write when a DMA has been started
        Revert "serial: imx-serial - move DMA buffer configuration to DT"
        serial: sh-sci: Uninitialized variables in sysfs files
        serial: st-asc: Potential error pointer dereference
      ae75d1ae
    • Linus Torvalds's avatar
      Merge tag 'char-misc-4.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc · dedaff2f
      Linus Torvalds authored
      Pull char/misc driver fixes from Greg KH:
       "Here are some small char and misc driver fixes for 4.13-rc2. All fix
        reported problems with 4.13-rc1 or older kernels (like the binder
        fixes). Full details in the shortlog.
      
        All have been in linux-next with no reported issues"
      
      * tag 'char-misc-4.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
        w1: omap-hdq: fix error return code in omap_hdq_probe()
        regmap: regmap-w1: Fix build troubles
        w1: Fix slave count on 1-Wire bus (resend)
        mux: mux-core: unregister mux_class in mux_exit()
        mux: remove the Kconfig question for the subsystem
        nvmem: rockchip-efuse: amend compatible rk322x-efuse to rk3228-efuse
        drivers/fsi: fix fsi_slave_mode prototype
        fsi: core: register with postcore_initcall
        thunderbolt: Correct access permissions for active NVM contents
        vmbus: re-enable channel tasklet
        spmi: pmic-arb: Always allocate ppid_to_apid table
        MAINTAINERS: Add entry for SPMI subsystem
        spmi: Include OF based modalias in device uevent
        binder: Use wake up hint for synchronous transactions.
        binder: use group leader instead of open thread
        Revert "android: binder: Sanity check at binder ioctl"
      dedaff2f
    • Linus Torvalds's avatar
      Merge tag 'usb-4.13-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb · 55fd939e
      Linus Torvalds authored
      Pull USB fixes from Greg KH:
       "Here are some small USB fixes for 4.13-rc2.
      
        The usual batch, gadget fixes for reported issues, as well as xhci
        fixes, and a small random collection of other fixes for reported
        issues.
      
        All have been in linux-next with no reported issues"
      
      * tag 'usb-4.13-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (25 commits)
        xhci: fix memleak in xhci_run()
        usb: xhci: fix spinlock recursion for USB2 test mode
        xhci: fix 20000ms port resume timeout
        usb: xhci: Issue stop EP command only when the EP state is running
        xhci: Bad Ethernet performance plugged in ASM1042A host
        xhci: Fix NULL pointer dereference when cleaning up streams for removed host
        usb: renesas_usbhs: gadget: disable all eps when the driver stops
        usb: renesas_usbhs: fix usbhsc_resume() for !USBHSF_RUNTIME_PWCTRL
        usb: gadget: udc: renesas_usb3: protect usb3_ep->started in usb3_start_pipen()
        usb: gadget: udc: renesas_usb3: fix zlp transfer by the dmac
        usb: gadget: udc: renesas_usb3: fix free size in renesas_usb3_dma_free_prd()
        usb: gadget: f_uac2: endianness fixes.
        usb: gadget: f_uac1: endianness fixes.
        include: usb: audio: specify exact endiannes of descriptors
        usb: gadget: udc: start_udc() can be static
        usb: dwc2: gadget: On USB RESET reset device address to zero
        usb: storage: return on error to avoid a null pointer dereference
        usb: typec: include linux/device.h in ucsi.h
        USB: cdc-acm: add device-id for quirky printer
        usb: dwc3: gadget: only unmap requests from DMA if mapped
        ...
      55fd939e
    • Linus Torvalds's avatar
      Merge tag 'staging-4.13-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging · bcb53e57
      Linus Torvalds authored
      Pull staging driver fixes from Greg KH:
       "Here are some small staging driver fixes for reported issues for
        4.13-rc2.
      
        Also in here is a new driver, the virtualbox DRM driver. It's
        stand-alone and got acks from the DRM developers to go in through this
        tree. It's a new thing, but it should be fine for this point in the rc
        cycle due to it being independent.
      
        All of this has been in linux-next for a while with no reported
        issues"
      
      * tag 'staging-4.13-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
        staging: rtl8188eu: add TL-WN722N v2 support
        staging: speakup: safely register and unregister ldisc
        staging: speakup: add functions to register and unregister ldisc
        staging: speakup: safely close tty
        staging: sm750fb: avoid conflicting vesafb
        staging: lustre: ko2iblnd: check copy_from_iter/copy_to_iter return code
        staging: vboxvideo: Add vboxvideo to drivers/staging
        staging: sm750fb: fixed a assignment typo
        staging: rtl8188eu: memory leak in rtw_free_cmd_obj()
        staging: vchiq_arm: fix error codes in probe
        staging: comedi: ni_mio_common: fix AO timer off-by-one regression
      bcb53e57
    • Randy Dunlap's avatar
      MAINTAINERS: fix alphabetical ordering · 82abbea7
      Randy Dunlap authored
      Fix major alphabetic errors.  No attempt to fix items that all begin
      with the same word (like ARM, BROADCOM, DRM, EDAC, FREESCALE, INTEL,
      OMAP, PCI, SAMSUNG, TI, USB, etc.).
      
      (diffstat +/- is different by one line because TI KEYSTONE MULTICORE
      had 2 blank lines after it.)
      Signed-off-by: default avatarRandy Dunlap <rdunlap@infradead.org>
      Acked-by: default avatarAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      82abbea7
  4. 21 Jul, 2017 20 commits