1. 01 May, 2020 3 commits
  2. 30 Apr, 2020 1 commit
  3. 29 Apr, 2020 2 commits
  4. 28 Apr, 2020 14 commits
  5. 27 Apr, 2020 5 commits
    • Lyude Paul's avatar
      drm/dp_mst: Fix drm_dp_send_dpcd_write() return code · dbc05ae3
      Lyude Paul authored
      drm_dp_mst_wait_tx_reply() returns > 1 if time elapsed in
      wait_event_timeout() before check_txmsg_state(mgr, txmsg) evaluated to
      true. However, we make the mistake of returning this time from
      drm_dp_send_dpcd_write() on success instead of returning the number of
      bytes written - causing spontaneous failures during link probing:
      
      [drm:drm_dp_send_link_address [drm_kms_helper]] *ERROR* GUID check on
      10:01 failed: 3975
      
      Yikes! So, fix this by returning the number of bytes written on success
      instead.
      Signed-off-by: default avatarLyude Paul <lyude@redhat.com>
      Fixes: cb897542 ("drm/dp_mst: Fix W=1 warnings")
      Cc: Benjamin Gaignard <benjamin.gaignard@st.com>
      Cc: Sean Paul <sean@poorly.run>
      Acked-by: default avatarAlex Deucher <alexander.deucher@amd.com>
      Reviewed-by: default avatarSean Paul <sean@poorly.run>
      Link: https://patchwork.freedesktop.org/patch/msgid/20200424190722.775284-1-lyude@redhat.com
      dbc05ae3
    • Chris Wilson's avatar
      drm/i915/gt: Check cacheline is valid before acquiring · 2abaad4e
      Chris Wilson authored
      The hwsp_cacheline pointer from i915_request is very, very flimsy. The
      i915_request.timeline (and the hwsp_cacheline) are lost upon retiring
      (after an RCU grace). Therefore we need to confirm that once we have the
      right pointer for the cacheline, it is not in the process of being
      retired and disposed of before we attempt to acquire a reference to the
      cacheline.
      
      <3>[  547.208237] BUG: KASAN: use-after-free in active_debug_hint+0x6a/0x70 [i915]
      <3>[  547.208366] Read of size 8 at addr ffff88822a0d2710 by task gem_exec_parall/2536
      
      <4>[  547.208547] CPU: 3 PID: 2536 Comm: gem_exec_parall Tainted: G     U            5.7.0-rc2-ged7a286b5d02d-kasan_117+ #1
      <4>[  547.208556] Hardware name: Dell Inc. XPS 13 9350/, BIOS 1.4.12 11/30/2016
      <4>[  547.208564] Call Trace:
      <4>[  547.208579]  dump_stack+0x96/0xdb
      <4>[  547.208707]  ? active_debug_hint+0x6a/0x70 [i915]
      <4>[  547.208719]  print_address_description.constprop.6+0x16/0x310
      <4>[  547.208841]  ? active_debug_hint+0x6a/0x70 [i915]
      <4>[  547.208963]  ? active_debug_hint+0x6a/0x70 [i915]
      <4>[  547.208975]  __kasan_report+0x137/0x190
      <4>[  547.209106]  ? active_debug_hint+0x6a/0x70 [i915]
      <4>[  547.209127]  kasan_report+0x32/0x50
      <4>[  547.209257]  ? i915_gemfs_fini+0x40/0x40 [i915]
      <4>[  547.209376]  active_debug_hint+0x6a/0x70 [i915]
      <4>[  547.209389]  debug_print_object+0xa7/0x220
      <4>[  547.209405]  ? lockdep_hardirqs_on+0x348/0x5f0
      <4>[  547.209426]  debug_object_assert_init+0x297/0x430
      <4>[  547.209449]  ? debug_object_free+0x360/0x360
      <4>[  547.209472]  ? lock_acquire+0x1ac/0x8a0
      <4>[  547.209592]  ? intel_timeline_read_hwsp+0x4f/0x840 [i915]
      <4>[  547.209737]  ? i915_active_acquire_if_busy+0x66/0x120 [i915]
      <4>[  547.209861]  i915_active_acquire_if_busy+0x66/0x120 [i915]
      <4>[  547.209990]  ? __live_alloc.isra.15+0xc0/0xc0 [i915]
      <4>[  547.210005]  ? rcu_read_lock_sched_held+0xd0/0xd0
      <4>[  547.210017]  ? print_usage_bug+0x580/0x580
      <4>[  547.210153]  intel_timeline_read_hwsp+0xbc/0x840 [i915]
      <4>[  547.210284]  __emit_semaphore_wait+0xd5/0x480 [i915]
      <4>[  547.210415]  ? i915_fence_get_timeline_name+0x110/0x110 [i915]
      <4>[  547.210428]  ? lockdep_hardirqs_on+0x348/0x5f0
      <4>[  547.210442]  ? _raw_spin_unlock_irq+0x2a/0x40
      <4>[  547.210567]  ? __await_execution.constprop.51+0x2e0/0x570 [i915]
      <4>[  547.210706]  i915_request_await_dma_fence+0x8f7/0xc70 [i915]
      
      Fixes: 85bedbf1 ("drm/i915/gt: Eliminate the trylock for reading a timeline's hwsp")
      Signed-off-by: default avatarChris Wilson <chris@chris-wilson.co.uk>
      Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
      Cc: <stable@vger.kernel.org> # v5.6+
      Reviewed-by: default avatarTvrtko Ursulin <tvrtko.ursulin@intel.com>
      Link: https://patchwork.freedesktop.org/patch/msgid/20200427093038.29219-1-chris@chris-wilson.co.uk
      (cherry picked from commit 2759e395)
      Signed-off-by: default avatarRodrigo Vivi <rodrigo.vivi@intel.com>
      2abaad4e
    • Chris Wilson's avatar
      drm/i915/gem: Hold obj->vma.lock over for_each_ggtt_vma() · f524a774
      Chris Wilson authored
      While the ggtt vma are protected by their object lifetime, the list
      continues until it hits a non-ggtt vma, and that vma is not protected
      and may be freed as we inspect it. Hence, we require the obj->vma.lock
      to protect the list as we iterate.
      
      An example of forgetting to hold the obj->vma.lock is
      
      [1642834.464973] general protection fault, probably for non-canonical address 0xdead000000000122: 0000 [#1] SMP PTI
      [1642834.464977] CPU: 3 PID: 1954 Comm: Xorg Not tainted 5.6.0-300.fc32.x86_64 #1
      [1642834.464979] Hardware name: LENOVO 20ARS25701/20ARS25701, BIOS GJET94WW (2.44 ) 09/14/2017
      [1642834.465021] RIP: 0010:i915_gem_object_set_tiling+0x2c0/0x3e0 [i915]
      [1642834.465024] Code: 8b 84 24 18 01 00 00 f6 c4 80 74 59 49 8b 94 24 a0 00 00 00 49 8b 84 24 e0 00 00 00 49 8b 74 24 10 48 8b 92 30 01 00 00 89 c7 <80> ba 0a 06 00 00 03 0f 87 86 00 00 00 ba 00 00 08 00 b9 00 00 10
      [1642834.465025] RSP: 0018:ffffa98780c77d60 EFLAGS: 00010282
      [1642834.465028] RAX: ffff8d232bfb2578 RBX: 0000000000000002 RCX: ffff8d25873a0000
      [1642834.465029] RDX: dead000000000122 RSI: fffff0af8ac6e408 RDI: 000000002bfb2578
      [1642834.465030] RBP: ffff8d25873a0000 R08: ffff8d252bfb5638 R09: 0000000000000000
      [1642834.465031] R10: 0000000000000000 R11: ffff8d252bfb5640 R12: ffffa987801cb8f8
      [1642834.465032] R13: 0000000000001000 R14: ffff8d233e972e50 R15: ffff8d233e972d00
      [1642834.465034] FS:  00007f6a3d327f00(0000) GS:ffff8d25926c0000(0000) knlGS:0000000000000000
      [1642834.465036] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
      [1642834.465037] CR2: 00007f6a2064d000 CR3: 00000002fb57c001 CR4: 00000000001606e0
      [1642834.465038] Call Trace:
      [1642834.465083]  i915_gem_set_tiling_ioctl+0x122/0x230 [i915]
      [1642834.465121]  ? i915_gem_object_set_tiling+0x3e0/0x3e0 [i915]
      [1642834.465151]  drm_ioctl_kernel+0x86/0xd0 [drm]
      [1642834.465156]  ? avc_has_perm+0x3b/0x160
      [1642834.465178]  drm_ioctl+0x206/0x390 [drm]
      [1642834.465216]  ? i915_gem_object_set_tiling+0x3e0/0x3e0 [i915]
      [1642834.465221]  ? selinux_file_ioctl+0x122/0x1c0
      [1642834.465226]  ? __do_munmap+0x24b/0x4d0
      [1642834.465231]  ksys_ioctl+0x82/0xc0
      [1642834.465235]  __x64_sys_ioctl+0x16/0x20
      [1642834.465238]  do_syscall_64+0x5b/0xf0
      [1642834.465243]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
      [1642834.465245] RIP: 0033:0x7f6a3d7b047b
      [1642834.465247] Code: 0f 1e fa 48 8b 05 1d aa 0c 00 64 c7 00 26 00 00 00 48 c7 c0 ff ff ff ff c3 66 0f 1f 44 00 00 f3 0f 1e fa b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d ed a9 0c 00 f7 d8 64 89 01 48
      [1642834.465249] RSP: 002b:00007ffe71adba28 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
      [1642834.465251] RAX: ffffffffffffffda RBX: 000055f99048fa40 RCX: 00007f6a3d7b047b
      [1642834.465253] RDX: 00007ffe71adba30 RSI: 00000000c0106461 RDI: 000000000000000e
      [1642834.465254] RBP: 0000000000000002 R08: 000055f98f3f1798 R09: 0000000000000002
      [1642834.465255] R10: 0000000000001000 R11: 0000000000000246 R12: 0000000000000080
      [1642834.465257] R13: 000055f98f3f1690 R14: 00000000c0106461 R15: 00007ffe71adba30
      
      Now to take the spinlock during the list iteration, we need to break it
      down into two phases. In the first phase under the lock, we cannot sleep
      and so must defer the actual work to a second list, protected by the
      ggtt->mutex.
      
      We also need to hold the spinlock during creation of a new vma to
      serialise with updates of the tiling on the object.
      Reported-by: default avatarDave Airlie <airlied@redhat.com>
      Fixes: 2850748e ("drm/i915: Pull i915_vma_pin under the vm->mutex")
      Signed-off-by: default avatarChris Wilson <chris@chris-wilson.co.uk>
      Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
      Cc: Dave Airlie <airlied@redhat.com>
      Cc: <stable@vger.kernel.org> # v5.5+
      Reviewed-by: default avatarTvrtko Ursulin <tvrtko.ursulin@intel.com>
      Link: https://patchwork.freedesktop.org/patch/msgid/20200422072805.17340-1-chris@chris-wilson.co.uk
      (cherry picked from commit cb593e5d)
      Signed-off-by: default avatarRodrigo Vivi <rodrigo.vivi@intel.com>
      f524a774
    • Xiyu Yang's avatar
      drm/i915/selftests: Fix i915_address_space refcnt leak · 5d5e100a
      Xiyu Yang authored
      igt_ppgtt_pin_update() invokes i915_gem_context_get_vm_rcu(), which
      returns a reference of the i915_address_space object to "vm" with
      increased refcount.
      
      When igt_ppgtt_pin_update() returns, "vm" becomes invalid, so the
      refcount should be decreased to keep refcount balanced.
      
      The reference counting issue happens in two exception handling paths of
      igt_ppgtt_pin_update(). When i915_gem_object_create_internal() returns
      IS_ERR, the refcnt increased by i915_gem_context_get_vm_rcu() is not
      decreased, causing a refcnt leak.
      
      Fix this issue by jumping to "out_vm" label when
      i915_gem_object_create_internal() returns IS_ERR.
      
      Fixes: a4e7ccda ("drm/i915: Move context management under GEM")
      Signed-off-by: default avatarXiyu Yang <xiyuyang19@fudan.edu.cn>
      Signed-off-by: default avatarXin Tan <tanxin.ctf@gmail.com>
      Reviewed-by: default avatarChris Wilson <chris@chris-wilson.co.uk>
      Signed-off-by: default avatarChris Wilson <chris@chris-wilson.co.uk>
      Link: https://patchwork.freedesktop.org/patch/msgid/1587361342-83494-1-git-send-email-xiyuyang19@fudan.edu.cn
      (cherry picked from commit e07c7606)
      Signed-off-by: default avatarRodrigo Vivi <rodrigo.vivi@intel.com>
      5d5e100a
    • Daniel Vetter's avatar
      dma-buf: Fix SET_NAME ioctl uapi · a5bff92e
      Daniel Vetter authored
      The uapi is the same on 32 and 64 bit, but the number isn't. Everyone
      who botched this please re-read:
      
      https://www.kernel.org/doc/html/v5.4-preprc-cpu/ioctl/botching-up-ioctls.html
      
      Also, the type argument for the ioctl macros is for the type the void
      __user *arg pointer points at, which in this case would be the
      variable-sized char[] of a 0 terminated string. So this was botched in
      more than just the usual ways.
      
      Cc: Sumit Semwal <sumit.semwal@linaro.org>
      Cc: Chenbo Feng <fengc@google.com>
      Cc: Greg Hackmann <ghackmann@google.com>
      Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
      Cc: linux-media@vger.kernel.org
      Cc: linaro-mm-sig@lists.linaro.org
      Cc: minchan@kernel.org
      Cc: surenb@google.com
      Cc: jenhaochen@google.com
      Cc: Martin Liu <liumartin@google.com>
      Signed-off-by: default avatarDaniel Vetter <daniel.vetter@intel.com>
      Tested-by: default avatarMartin Liu <liumartin@google.com>
      Reviewed-by: default avatarMartin Liu <liumartin@google.com>
      Signed-off-by: default avatarSumit Semwal <sumit.semwal@linaro.org>
        [sumits: updated some checkpatch fixes, corrected author email]
      Link: https://patchwork.freedesktop.org/patch/msgid/20200407133002.3486387-1-daniel.vetter@ffwll.ch
      a5bff92e
  6. 26 Apr, 2020 11 commits
    • Linus Torvalds's avatar
      Linux 5.7-rc3 · 6a8b55ed
      Linus Torvalds authored
      6a8b55ed
    • Linus Torvalds's avatar
      Merge tag '5.7-rc2-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6 · d4fb4bfb
      Linus Torvalds authored
      Pull cifs fixes from Steve French:
       "Five cifs/smb3 fixes:two for DFS reconnect failover, one lease fix for
        stable and the others to fix a missing spinlock during reconnect"
      
      * tag '5.7-rc2-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6:
        cifs: fix uninitialised lease_key in open_shroot()
        cifs: ensure correct super block for DFS reconnect
        cifs: do not share tcons with DFS
        cifs: minor update to comments around the cifs_tcp_ses_lock mutex
        cifs: protect updating server->dstaddr with a spinlock
      d4fb4bfb
    • Linus Torvalds's avatar
      Merge tag 'usb-5.7-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb · e9a61afb
      Linus Torvalds authored
      Pull USB fixes from Greg KH:
       "Here are a number of USB driver fixes for 5.7-rc3.
      
        Nothing huge, just the usual collection of:
      
         - xhci fixes
      
         - gadget driver fixes
      
         - syzkaller fuzzing fixes
      
         - new device ids and DT bindings
      
         - new quirks added for broken devices
      
        A few of the gadget driver fixes show up twice here as they were
        applied to my branch, and also by Felipe to his branch which I then
        pulled in as we got out of sync a bit.
      
        All of these have been in linux-next with no reported issues"
      
      * tag 'usb-5.7-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (33 commits)
        USB: sisusbvga: Change port variable from signed to unsigned
        usb-storage: Add unusual_devs entry for JMicron JMS566
        USB: hub: Revert commit bd0e6c96 ("usb: hub: try old enumeration scheme first for high speed devices")
        USB: hub: Fix handling of connect changes during sleep
        usb: typec: altmode: Fix typec_altmode_get_partner sometimes returning an invalid pointer
        xhci: Don't clear hub TT buffer on ep0 protocol stall
        xhci: prevent bus suspend if a roothub port detected a over-current condition
        xhci: Fix handling halted endpoint even if endpoint ring appears empty
        usb: raw-gadget: Fix copy_to/from_user() checks
        usb: raw-gadget: fix raw_event_queue_fetch locking
        usb: gadget: udc: atmel: Fix vbus disconnect handling
        usb: dwc3: gadget: Fix request completion check
        USB: Add USB_QUIRK_DELAY_CTRL_MSG and USB_QUIRK_DELAY_INIT for Corsair K70 RGB RAPIDFIRE
        phy: tegra: Select USB_COMMON for usb_get_maximum_speed()
        usb: typec: tcpm: Ignore CC and vbus changes in PORT_RESET change
        usb: f_fs: Clear OS Extended descriptor counts to zero in ffs_data_reset()
        cdc-acm: introduce a cool down
        cdc-acm: close race betrween suspend() and acm_softint
        UAS: fix deadlock in error handling and PM flushing work
        UAS: no use logging any details in case of ENODEV
        ...
      e9a61afb
    • Linus Torvalds's avatar
      Merge tag 'tty-5.7-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty · c5f33785
      Linus Torvalds authored
      Pull tty/serial fixes from Greg KH:
       "Here are some tty and serial driver fixes for 5.7-rc3.
      
        The "largest" in here are a number of reverts for previous changes to
        the uartps serial driver that turned out to not be a good idea at all.
      
        The others are just small fixes found by people and tools. Included in
        here is a much-reported symbol export needed by previous changes that
        happened in 5.7-rc1. All of these have been in linux-next for a while
        with no reported issues"
      
      * tag 'tty-5.7-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
        tty: hvc: fix buffer overflow during hvc_alloc().
        tty: rocket, avoid OOB access
        tty: serial: bcm63xx: fix missing clk_put() in bcm63xx_uart
        vt: don't hardcode the mem allocation upper bound
        tty: serial: owl: add "much needed" clk_prepare_enable()
        vt: don't use kmalloc() for the unicode screen buffer
        tty/sysrq: Export sysrq_mask(), sysrq_toggle_support()
        serial: sh-sci: Make sure status register SCxSR is read in correct sequence
        serial: sunhv: Initialize lock for non-registered console
        Revert "serial: uartps: Register own uart console and driver structures"
        Revert "serial: uartps: Move Port ID to device data structure"
        Revert "serial: uartps: Change uart ID port allocation"
        Revert "serial: uartps: Do not allow use aliases >= MAX_UART_INSTANCES"
        Revert "serial: uartps: Fix error path when alloc failed"
        Revert "serial: uartps: Use the same dynamic major number for all ports"
        Revert "serial: uartps: Fix uartps_major handling"
      c5f33785
    • Linus Torvalds's avatar
      Merge tag 'char-misc-5.7-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc · f6da8bd1
      Linus Torvalds authored
      Pull char/misc driver fixes from Greg KH:
       "Here are 4 small misc driver fixes for 5.7-rc3:
      
         - mei driver fix
      
         - interconnect driver fix
      
         - two fpga driver fixes
      
        All have been in linux-next with no reported issues"
      
      * tag 'char-misc-5.7-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
        interconnect: qcom: Fix uninitialized tcs_cmd::wait
        mei: me: fix irq number stored in hw struct
        fpga: dfl: pci: fix return value of cci_pci_sriov_configure
        fpga: zynq: Remove clk_get error message for probe defer
      f6da8bd1
    • Linus Torvalds's avatar
      Merge tag 'staging-5.7-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging · edf17b28
      Linus Torvalds authored
      Pull staging/IIO driver fixes from Greg KH:
       "Here are some small staging and IIO driver fixes for 5.7-rc3
      
        Lots of tiny things for reported issues in staging and IIO drivers,
        including a counter driver fix as well (the iio drivers seem to be
        tied to those). Full details of the fixes are in the shortlog.
      
        All of these have been in linux-next for a while with no reported
        issues"
      
      * tag 'staging-5.7-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (27 commits)
        staging: vt6656: Fix calling conditions of vnt_set_bss_mode
        staging: comedi: Fix comedi_device refcnt leak in comedi_open
        staging: vt6656: Fix pairwise key entry save.
        staging: vt6656: Fix drivers TBTT timing counter.
        staging: vt6656: Don't set RCR_MULTICAST or RCR_BROADCAST by default.
        MAINTAINERS: remove Stefan Popa's email
        iio: adc: ad7192: fix null pointer de-reference crash during probe
        iio: core: remove extra semi-colon from devm_iio_device_register() macro
        iio: adc: ti-ads8344: properly byte swap value
        iio: imu: inv_mpu6050: fix suspend/resume with runtime power
        iio: st_sensors: rely on odr mask to know if odr can be set
        iio: xilinx-xadc: Make sure not exceed maximum samplerate
        iio: xilinx-xadc: Fix sequencer configuration for aux channels in simultaneous mode
        iio: xilinx-xadc: Fix clearing interrupt when enabling trigger
        iio: xilinx-xadc: Fix ADC-B powerdown
        iio: dac: ad5770r: fix off-by-one check on maximum number of channels
        iio: imu: st_lsm6dsx: flush hw FIFO before resetting the device
        iio: core: Fix handling of 'dB'
        dt-bindings: iio: adc: stm32-adc: fix id relative path
        counter: 104-quad-8: Add lock guards - generic interface
        ...
      edf17b28
    • Linus Torvalds's avatar
      Merge tag 'driver-core-5.7-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core · a8a0e2a9
      Linus Torvalds authored
      Pull driver core fixes from Greg KH:
       "Here are some small firmware/driver core/debugfs fixes for 5.7-rc3.
      
        The debugfs change is now possible as now the last users of
        debugfs_create_u32() have been fixed up in the different trees that
        got merged into 5.7-rc1, and I don't want it creeping back in.
      
        The firmware changes did cause a regression in linux-next, so the
        final patch here reverts part of that, re-exporting the symbol to
        resolve that issue. All of these patches, with the exception of the
        final one, have been in linux-next with only that one reported issue"
      
      * tag 'driver-core-5.7-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
        firmware_loader: revert removal of the fw_fallback_config export
        debugfs: remove return value of debugfs_create_u32()
        firmware_loader: remove unused exports
        firmware: imx: fix compile-testing
      a8a0e2a9
    • Linus Torvalds's avatar
      Merge tag 's390-5.7-3' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux · 749f0461
      Linus Torvalds authored
      Pull s390 fixes from Vasily Gorbik:
      
       - Add a few notrace annotations to avoid potential crashes when
         switching ftrace tracers.
      
       - Avoid setting affinity for floating irqs in pci code.
      
       - Fix build issue found by kbuild test robot.
      
      * tag 's390-5.7-3' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
        s390/protvirt: fix compilation issue
        s390/pci: do not set affinity for floating irqs
        s390/ftrace: fix potential crashes when switching tracers
      749f0461
    • Linus Torvalds's avatar
      Merge tag 'powerpc-5.7-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux · 670bcd79
      Linus Torvalds authored
      Pull powerpc fixes from Michael Ellerman:
      
       - One important fix for a bug in the way we find the cache-line size
         from the device tree, which was leading to the wrong size being
         reported to userspace on some platforms.
      
       - A fix for 8xx STRICT_KERNEL_RWX which was leaving TLB entries around
         leading to a window at boot when the strict mapping wasn't enforced.
      
       - A fix to enable our KUAP (kernel user access prevention) debugging on
         PPC32.
      
       - A build fix for clang in lib/mpi.
      
      Thanks to: Chris Packham, Christophe Leroy, Nathan Chancellor, Qian Cai.
      
      * tag 'powerpc-5.7-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
        lib/mpi: Fix building for powerpc with clang
        powerpc/mm: Fix CONFIG_PPC_KUAP_DEBUG on PPC32
        powerpc/8xx: Fix STRICT_KERNEL_RWX startup test failure
        powerpc/setup_64: Set cache-line-size based on cache-block-size
      670bcd79
    • Linus Torvalds's avatar
      Merge tag 'devicetree-fixes-for-5.7-2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux · 58792882
      Linus Torvalds authored
      Pull more Devicetree fixes from Rob Herring:
       "A couple of schema and kbuild fixes"
      
      * tag 'devicetree-fixes-for-5.7-2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
        dt-bindings: phy: qcom-qusb2: Fix defaults
        dt-bindings: Fix erroneous 'additionalProperties'
        dt-bindings: Fix command line length limit calling dt-mk-schema
        dt-bindings: Re-enable core schemas for dtbs_check
      58792882
    • Luis Chamberlain's avatar
      firmware_loader: revert removal of the fw_fallback_config export · 5a357703
      Luis Chamberlain authored
      Christoph's patch removed two unsused exported symbols, however, one
      symbol is used by the firmware_loader itself.  If CONFIG_FW_LOADER=m so
      the firmware_loader is modular but CONFIG_FW_LOADER_USER_HELPER=y we fail
      the build at mostpost.
      
      ERROR: modpost: "fw_fallback_config" [drivers/base/firmware_loader/firmware_class.ko] undefined!
      
      This happens because the variable fw_fallback_config is built into the
      kernel if CONFIG_FW_LOADER_USER_HELPER=y always, so we need to grant
      access to the firmware loader module by exporting it.
      
      Revert only one hunk from his patch.
      
      Fixes: 73960473 ("firmware_loader: remove unused exports")
      Reported-by: default avatarRandy Dunlap <rdunlap@infradead.org>
      Signed-off-by: default avatarLuis Chamberlain <mcgrof@kernel.org>
      Link: https://lore.kernel.org/r/20200424184916.22843-1-mcgrof@kernel.orgSigned-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
      5a357703
  7. 25 Apr, 2020 4 commits