1. 05 Apr, 2017 2 commits
    • Ard Biesheuvel's avatar
      efi/fb: Avoid reconfiguration of BAR that covers the framebuffer · 55d728a4
      Ard Biesheuvel authored
      On UEFI systems, the PCI subsystem is enumerated by the firmware,
      and if a graphical framebuffer is exposed via a PCI device, its base
      address and size are exposed to the OS via the Graphics Output
      Protocol (GOP).
      
      On arm64 PCI systems, the entire PCI hierarchy is reconfigured from
      scratch at boot. This may result in the GOP framebuffer address to
      become stale, if the BAR covering the framebuffer is modified. This
      will cause the framebuffer to become unresponsive, and may in some
      cases result in unpredictable behavior if the range is reassigned to
      another device.
      
      So add a non-x86 quirk to the EFI fb driver to find the BAR associated
      with the GOP base address, and claim the BAR resource so that the PCI
      core will not move it.
      Signed-off-by: default avatarArd Biesheuvel <ard.biesheuvel@linaro.org>
      Cc: <stable@vger.kernel.org> # v4.7+
      Cc: Linus Torvalds <torvalds@linux-foundation.org>
      Cc: Matt Fleming <matt@codeblueprint.co.uk>
      Cc: Peter Jones <pjones@redhat.com>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Cc: leif.lindholm@linaro.org
      Cc: linux-efi@vger.kernel.org
      Cc: lorenzo.pieralisi@arm.com
      Fixes: 9822504c ("efifb: Enable the efi-framebuffer platform driver ...")
      Link: http://lkml.kernel.org/r/20170404152744.26687-3-ard.biesheuvel@linaro.orgSigned-off-by: default avatarIngo Molnar <mingo@kernel.org>
      55d728a4
    • Cohen, Eugene's avatar
      efi/libstub: Skip GOP with PIXEL_BLT_ONLY format · 540f4c0e
      Cohen, Eugene authored
      The UEFI Specification permits Graphics Output Protocol (GOP) instances
      without direct framebuffer access. This is indicated in the Mode structure
      with a PixelFormat enumeration value of PIXEL_BLT_ONLY. Given that the
      kernel does not know how to drive a Blt() only framebuffer (which is only
      permitted before ExitBootServices() anyway), we should disregard such
      framebuffers when looking for a GOP instance that is suitable for use as
      the boot console.
      
      So modify the EFI GOP initialization to not use a PIXEL_BLT_ONLY instance,
      preventing attempts later in boot to use an invalid screen_info.lfb_base
      address.
      Signed-off-by: default avatarEugene Cohen <eugene@hp.com>
      [ Moved the Blt() only check into the loop and clarified that Blt() only GOPs are unusable by the kernel. ]
      Signed-off-by: default avatarArd Biesheuvel <ard.biesheuvel@linaro.org>
      Cc: <stable@vger.kernel.org> # v4.7+
      Cc: Linus Torvalds <torvalds@linux-foundation.org>
      Cc: Matt Fleming <matt@codeblueprint.co.uk>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Cc: leif.lindholm@linaro.org
      Cc: linux-efi@vger.kernel.org
      Cc: lorenzo.pieralisi@arm.com
      Fixes: 9822504c ("efifb: Enable the efi-framebuffer platform driver ...")
      Link: http://lkml.kernel.org/r/20170404152744.26687-2-ard.biesheuvel@linaro.orgSigned-off-by: default avatarIngo Molnar <mingo@kernel.org>
      540f4c0e
  2. 04 Apr, 2017 5 commits
  3. 03 Apr, 2017 12 commits
  4. 02 Apr, 2017 10 commits
    • Linus Torvalds's avatar
      Merge tag 'dmaengine-fix-4.11-rc5' of git://git.infradead.org/users/vkoul/slave-dma · f49237bf
      Linus Torvalds authored
      Pull dmaengine fixes from Vinod Koul:
       "A couple of minor fixes for 4.11:
      
         - array bound fix for __get_unmap_pool()
      
         - cyclic period splitting for bcm2835"
      
      * tag 'dmaengine-fix-4.11-rc5' of git://git.infradead.org/users/vkoul/slave-dma:
        dmaengine: Fix array index out of bounds warning in __get_unmap_pool()
        dmaengine: bcm2835: Fix cyclic DMA period splitting
      f49237bf
    • Linus Torvalds's avatar
      Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 496dcc50
      Linus Torvalds authored
      Pull x86 fixes from Thomas Gleixner:
       "This update provides:
      
         - prevent KASLR from randomizing EFI regions
      
         - restrict the usage of -maccumulate-outgoing-args and document when
           and why it is required.
      
         - make the Global Physical Address calculation for UV4 systems work
           correctly.
      
         - address a copy->paste->forgot-edit problem in the MCE exception
           table entries.
      
         - assign a name to AMD MCA bank 3, so the sysfs file registration
           works.
      
         - add a missing include in the boot code"
      
      * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86/boot: Include missing header file
        x86/mce/AMD: Give a name to MCA bank 3 when accessed with legacy MSRs
        x86/build: Mostly disable '-maccumulate-outgoing-args'
        x86/mm/KASLR: Exclude EFI region from KASLR VA space randomization
        x86/mce: Fix copy/paste error in exception table entries
        x86/platform/uv: Fix calculation of Global Physical Address
      496dcc50
    • Linus Torvalds's avatar
      Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 128c434a
      Linus Torvalds authored
      Pull scheduler fixes from Thomas Gleixner:
       "This update provides:
      
         - make the scheduler clock switch to unstable mode smooth so the
           timestamps stay at microseconds granularity instead of switching to
           tick granularity.
      
         - unbreak perf test tsc by taking the new offset into account which
           was added in order to proveide better sched clock continuity
      
         - switching sched clock to unstable mode runs all clock related
           computations which affect the sched clock output itself from a work
           queue. In case of preemption sched clock uses half updated data and
           provides wrong timestamps. Keep the math in the protected context
           and delegate only the static key switch to workqueue context.
      
         - remove a duplicate header include"
      
      * 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        sched/headers: Remove duplicate #include <linux/sched/debug.h> line
        sched/clock: Fix broken stable to unstable transfer
        sched/clock, x86/perf: Fix "perf test tsc"
        sched/clock: Fix clear_sched_clock_stable() preempt wobbly
      128c434a
    • Linus Torvalds's avatar
      Merge branch 'efi-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 0a89b5eb
      Linus Torvalds authored
      Pull EFI fix from Thomas Gleixner:
       "Downgrade the missing ESRT header printk to warning level and remove a
        useless error printk which just generates noise for no value"
      
      * 'efi-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        efi/esrt: Cleanup bad memory map log messages
      0a89b5eb
    • Linus Torvalds's avatar
      Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 4a6808f3
      Linus Torvalds authored
      Pull timer fixes from Thomas Gleixner:
       "Two small fixes for the new CLKEVT_OF infrastructure"
      
      * 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        vmlinux.lds: Add __clkevt_of_table to kernel
        clockevents: Fix syntax error in clkevt-of macro
      4a6808f3
    • Linus Torvalds's avatar
      Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 907977b2
      Linus Torvalds authored
      Pull irq fixes from Thomas Gleixner:
       "Two small fixlets:
      
         - select a required Kconfig to make the MVEBU driver compile
      
         - add the missing MIPS local GIC interrupts which prevent drivers to
           probe successfully"
      
      * 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        irqchip/mips-gic: Fix Local compare interrupt
        irqchip/mvebu-odmi: Select GENERIC_MSI_IRQ_DOMAIN
      907977b2
    • Linus Torvalds's avatar
      Merge branch 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · ada63c61
      Linus Torvalds authored
      Pull core fix from Thomas Gleixner:
       "Prevent leaking kernel memory via /proc/$pid/syscall when the queried
        task is not in a syscall"
      
      * 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        lib/syscall: Clear return values when no stack
      ada63c61
    • Linus Torvalds's avatar
      Merge branch 'parisc-4.11-3' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux · 346ce1d7
      Linus Torvalds authored
      Pull parisc fixes from Helge Deller:
       "Al Viro reported that - in case of read faults - our copy_from_user()
        implementation may claim to have copied more bytes than it actually
        did. In order to fix this bug and because of the way how gcc optimizes
        register usage for inline assembly in C code, we had to replace our
        pa_memcpy() function with a pure assembler implementation.
      
        While fixing the memcpy bug we noticed some other issues with our
        get_user() and put_user() functions, e.g. nested faults may return
        wrong data. This is now fixed by a common fixup handler for
        get_user/put_user in the exception handler which additionally makes
        generated code smaller and faster.
      
        The third patch is a trivial one-line fix for a patch which went in
        during 4.11-rc and which avoids stalled CPU warnings after power
        shutdown (for parisc machines which can't plug power off themselves).
      
        Due to the rewrite of pa_memcpy() into assembly this patch got bigger
        than what I wanted to have sent at this stage.
      
        Those patches have been running in production during the last few days
        on our debian build servers without any further issues"
      
      * 'parisc-4.11-3' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
        parisc: Avoid stalled CPU warnings after system shutdown
        parisc: Clean up fixup routines for get_user()/put_user()
        parisc: Fix access fault handling in pa_memcpy()
      346ce1d7
    • Linus Torvalds's avatar
      Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi · 7d34ddbe
      Linus Torvalds authored
      Pull SCSI fixes from James Bottomley:
       "Thirteen small fixes: The hopefully final effort to get the lpfc nvme
        kconfig problems sorted, there's one important sg fix (user can induce
        read after end of buffer) and one minor enhancement (adding an extra
        PCI ID to qedi). The rest are a set of minor fixes, which mostly occur
        as user visible in error legs or on specific devices"
      
      * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
        scsi: ufs: remove the duplicated checking for supporting clkscaling
        scsi: lpfc: fix building without debugfs support
        scsi: lpfc: Fix PT2PT PRLI reject
        scsi: hpsa: fix volume offline state
        scsi: libsas: fix ata xfer length
        scsi: scsi_dh_alua: Warn if the first argument of alua_rtpg_queue() is NULL
        scsi: scsi_dh_alua: Ensure that alua_activate() calls the completion function
        scsi: scsi_dh_alua: Check scsi_device_get() return value
        scsi: sg: check length passed to SG_NEXT_CMD_LEN
        scsi: ufshcd-platform: remove the useless cast in ERR_PTR/IS_ERR
        scsi: qedi: Add PCI device-ID for QL41xxx adapters.
        scsi: aacraid: Fix potential null access
        scsi: qla2xxx: Fix crash in qla2xxx_eh_abort on bad ptr
      7d34ddbe
    • Linus Torvalds's avatar
      Merge branch 'akpm' (patches from Andrew) · 978e0f92
      Linus Torvalds authored
      Merge misc fixes from Andrew Morton:
       "11 fixes"
      
      * emailed patches from Andrew Morton <akpm@linux-foundation.org>:
        kasan: do not sanitize kexec purgatory
        drivers/rapidio/devices/tsi721.c: make module parameter variable name unique
        mm/hugetlb.c: don't call region_abort if region_chg fails
        kasan: report only the first error by default
        hugetlbfs: initialize shared policy as part of inode allocation
        mm: fix section name for .data..ro_after_init
        mm, hugetlb: use pte_present() instead of pmd_present() in follow_huge_pmd()
        mm: workingset: fix premature shadow node shrinking with cgroups
        mm: rmap: fix huge file mmap accounting in the memcg stats
        mm: move mm_percpu_wq initialization earlier
        mm: migrate: fix remove_migration_pte() for ksm pages
      978e0f92
  5. 01 Apr, 2017 11 commits