| Age | Commit message (Collapse) | Author | Files | Lines |
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Pull x86 fixes from Thomas Gleixner:
"This update contains:
- Hopefully the last ASM CLAC fixups
- A fix for the Quark family related to the IMR lock which makes
kexec work again
- A off-by-one fix in the MPX code. Ironic, isn't it?
- A fix for X86_PAE which addresses once more an unsigned long vs
phys_addr_t hickup"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/mpx: Fix off-by-one comparison with nr_registers
x86/mm: Fix slow_virt_to_phys() for X86_PAE again
x86/entry/compat: Add missing CLAC to entry_INT80_32
x86/entry/32: Add an ASM_CLAC to entry_SYSENTER_32
x86/platform/intel/quark: Change the kernel's IMR lock bit to false
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Pull irq fixes from Thomas Gleixner:
"Four small fixes for irqchip drivers:
- Add missing low level irq handler initialization on mxs, so
interrupts can acutally be delivered
- Add a missing barrier to the GIC driver
- Two fixes for the GIC-V3-ITS driver, addressing a double EOI write
and a cache flush beyond the actual region"
* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
irqchip/gic-v3: Add missing barrier to 32bit version of gic_read_iar()
irqchip/mxs: Add missing set_handle_irq()
irqchip/gicv3-its: Avoid cache flush beyond ITS_BASERn memory size
irqchip/gic-v3-its: Fix double ICC_EOIR write for LPI in EOImode==1
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Pull ARM SoC fixes from Olof Johansson:
"We didn't have a batch last week, so this one is slightly larger.
None of them are scary though, a handful of fixes for small DT pieces,
replacing properties with newer conventions.
Highlights:
- N900 fix for setting system revision
- onenand init fix to avoid filesystem corruption
- Clock fix for audio on Beaglebone-x15
- Fixes on shmobile to deal with CONFIG_DEBUG_RODATA (default y in 4.6)
+ misc smaller stuff"
* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
MAINTAINERS: Extend info, add wiki and ml for meson arch
MAINTAINERS: alpine: add a new maintainer and update the entry
ARM: at91/dt: fix typo in sama5d2 pinmux descriptions
ARM: OMAP2+: Fix onenand initialization to avoid filesystem corruption
Revert "regulator: tps65217: remove tps65217.dtsi file"
ARM: shmobile: Remove shmobile_boot_arg
ARM: shmobile: Move shmobile_smp_{mpidr, fn, arg}[] from .text to .bss
ARM: shmobile: r8a7779: Remove remainings of removed SCU boot setup code
ARM: shmobile: Move shmobile_scu_base from .text to .bss
ARM: OMAP2+: Fix omap_device for module reload on PM runtime forbid
ARM: OMAP2+: Improve omap_device error for driver writers
ARM: DTS: am57xx-beagle-x15: Select SYS_CLK2 for audio clocks
ARM: dts: am335x/am57xx: replace gpio-key,wakeup with wakeup-source property
ARM: OMAP2+: Set system_rev from ATAGS for n900
ARM: dts: orion5x: fix the missing mtd flash on linkstation lswtgl
ARM: dts: kirkwood: use unique machine name for ds112
ARM: dts: imx6: remove bogus interrupt-parent from CAAM node
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Merge fixes from Andrew Morton:
"10 fixes"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
dax: move writeback calls into the filesystems
dax: give DAX clearing code correct bdev
ext4: online defrag not supported with DAX
ext2, ext4: only set S_DAX for regular inodes
block: disable block device DAX by default
ocfs2: unlock inode if deleting inode from orphan fails
mm: ASLR: use get_random_long()
drivers: char: random: add get_random_long()
mm: numa: quickly fail allocations for NUMA balancing on full nodes
mm: thp: fix SMP race condition between THP page fault and MADV_DONTNEED
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Pull PCI fixes from Bjorn Helgaas:
"Enumeration:
Revert x86 pcibios_alloc_irq() to fix regression (Bjorn Helgaas)
Marvell MVEBU host bridge driver:
Restrict build to 32-bit ARM (Thierry Reding)"
* tag 'pci-v4.5-fixes-3' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
PCI: mvebu: Restrict build to 32-bit ARM
Revert "PCI, x86: Implement pcibios_alloc_irq() and pcibios_free_irq()"
Revert "PCI: Add helpers to manage pci_dev->irq and pci_dev->irq_managed"
Revert "x86/PCI: Don't alloc pcibios-irq when MSI is enabled"
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Replace calls to get_random_int() followed by a cast to (unsigned long)
with calls to get_random_long(). Also address shifting bug which, in
case of x86 removed entropy mask for mmap_rnd_bits values > 31 bits.
Signed-off-by: Daniel Cashman <dcashman@android.com>
Acked-by: Kees Cook <keescook@chromium.org>
Cc: "Theodore Ts'o" <tytso@mit.edu>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: David S. Miller <davem@davemloft.net>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Nick Kralevich <nnk@google.com>
Cc: Jeff Vander Stoep <jeffv@google.com>
Cc: Mark Salyzyn <salyzyn@android.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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991de2e59090 ("PCI, x86: Implement pcibios_alloc_irq() and
pcibios_free_irq()") appeared in v4.3 and helps support IOAPIC hotplug.
Олег reported that the Elcus-1553 TA1-PCI driver worked in v4.2 but not
v4.3 and bisected it to 991de2e59090. Sunjin reported that the RocketRAID
272x driver worked in v4.2 but not v4.3. In both cases booting with
"pci=routirq" is a workaround.
I think the problem is that after 991de2e59090, we no longer call
pcibios_enable_irq() for upstream bridges. Prior to 991de2e59090, when a
driver called pci_enable_device(), we recursively called
pcibios_enable_irq() for upstream bridges via pci_enable_bridge().
After 991de2e59090, we call pcibios_enable_irq() from pci_device_probe()
instead of the pci_enable_device() path, which does *not* call
pcibios_enable_irq() for upstream bridges.
Revert 991de2e59090 to fix these driver regressions.
Link: https://bugzilla.kernel.org/show_bug.cgi?id=111211
Fixes: 991de2e59090 ("PCI, x86: Implement pcibios_alloc_irq() and pcibios_free_irq()")
Reported-and-tested-by: Олег Мороз <oleg.moroz@mcc.vniiem.ru>
Reported-by: Sunjin Yang <fan4326@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Rafael J. Wysocki <rafael@kernel.org>
CC: Jiang Liu <jiang.liu@linux.intel.com>
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In the unlikely event that regno == nr_registers then we get an array
overrun on regoff because the invalid register check is currently
off-by-one. Fix this with a check that regno is >= nr_registers instead.
Detected with static analysis using CoverityScan.
Fixes: fcc7ffd67991 "x86, mpx: Decode MPX instruction to get bound violation information"
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: "Kirill A . Shutemov" <kirill.shutemov@linux.intel.com>
Cc: stable@vger.kernel.org
Link: http://lkml.kernel.org/r/1456512931-3388-1-git-send-email-colin.king@canonical.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Pull KVM fixes from Paolo Bonzini:
"KVM/ARM fixes:
- Fix per-vcpu vgic bitmap allocation
- Do not give copy random memory on MMIO read
- Fix GICv3 APR register restore order
KVM/x86 fixes:
- Fix ubsan warning
- Fix hardware breakpoints in a guest vs. preempt notifiers
- Fix Hurd
Generic:
- use __GFP_NOWARN together with GFP_NOWAIT"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: x86: MMU: fix ubsan index-out-of-range warning
arm64: KVM: vgic-v3: Restore ICH_APR0Rn_EL2 before ICH_APR1Rn_EL2
KVM: async_pf: do not warn on page allocation failures
KVM: x86: fix conversion of addresses to linear in 32-bit protected mode
KVM: x86: fix missed hardware breakpoints
arm/arm64: KVM: Feed initialized memory to MMIO accesses
KVM: arm/arm64: vgic: Ensure bitmaps are long enough
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Pull powerpc fixes from Michael Ellerman:
- eeh: Fix partial hotplug criterion from Gavin Shan
- mm: Clear the invalid slot information correctly from Aneesh Kumar K.V
* tag 'powerpc-4.5-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/mm/hash: Clear the invalid slot information correctly
powerpc/eeh: Fix partial hotplug criterion
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Pull s390 bugfixes from Martin Schwidefsky:
"Two critical bug fixes for the signal handling"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390/fpu: signals vs. floating point control register
s390/compat: correct restore of high gprs on signal return
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"d1cd12108346: x86, pageattr: Prevent overflow in slow_virt_to_phys() for
X86_PAE" was unintentionally removed by the recent "34437e67a672: x86/mm: Fix
slow_virt_to_phys() to handle large PAT bit".
And, the variable 'phys_addr' was defined as "unsigned long" by mistake -- it should
be "phys_addr_t".
As a result, Hyper-V network driver in 32-PAE Linux guest can't work again.
Fixes: commit 34437e67a672: "x86/mm: Fix slow_virt_to_phys() to handle large PAT bit"
Signed-off-by: Dexuan Cui <decui@microsoft.com>
Reviewed-by: Toshi Kani <toshi.kani@hpe.com>
Cc: olaf@aepfle.de
Cc: gregkh@linuxfoundation.org
Cc: jasowang@redhat.com
Cc: driverdev-devel@linuxdriverproject.org
Cc: linux-mm@kvack.org
Cc: apw@canonical.com
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: K. Y. Srinivasan <kys@microsoft.com>
Cc: Haiyang Zhang <haiyangz@microsoft.com>
Link: http://lkml.kernel.org/r/1456394292-9030-1-git-send-email-decui@microsoft.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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KVM/ARM fixes for 4.5-rc6
- Fix per-vcpu vgic bitmap allocation
- Do not give copy random memory on MMIO read
- Fix GICv3 APR register restore order
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Ubsan reports the following warning due to a typo in
update_accessed_dirty_bits template, the patch fixes
the typo:
[ 168.791851] ================================================================================
[ 168.791862] UBSAN: Undefined behaviour in arch/x86/kvm/paging_tmpl.h:252:15
[ 168.791866] index 4 is out of range for type 'u64 [4]'
[ 168.791871] CPU: 0 PID: 2950 Comm: qemu-system-x86 Tainted: G O L 4.5.0-rc5-next-20160222 #7
[ 168.791873] Hardware name: LENOVO 23205NG/23205NG, BIOS G2ET95WW (2.55 ) 07/09/2013
[ 168.791876] 0000000000000000 ffff8801cfcaf208 ffffffff81c9f780 0000000041b58ab3
[ 168.791882] ffffffff82eb2cc1 ffffffff81c9f6b4 ffff8801cfcaf230 ffff8801cfcaf1e0
[ 168.791886] 0000000000000004 0000000000000001 0000000000000000 ffffffffa1981600
[ 168.791891] Call Trace:
[ 168.791899] [<ffffffff81c9f780>] dump_stack+0xcc/0x12c
[ 168.791904] [<ffffffff81c9f6b4>] ? _atomic_dec_and_lock+0xc4/0xc4
[ 168.791910] [<ffffffff81da9e81>] ubsan_epilogue+0xd/0x8a
[ 168.791914] [<ffffffff81daafa2>] __ubsan_handle_out_of_bounds+0x15c/0x1a3
[ 168.791918] [<ffffffff81daae46>] ? __ubsan_handle_shift_out_of_bounds+0x2bd/0x2bd
[ 168.791922] [<ffffffff811287ef>] ? get_user_pages_fast+0x2bf/0x360
[ 168.791954] [<ffffffffa1794050>] ? kvm_largepages_enabled+0x30/0x30 [kvm]
[ 168.791958] [<ffffffff81128530>] ? __get_user_pages_fast+0x360/0x360
[ 168.791987] [<ffffffffa181b818>] paging64_walk_addr_generic+0x1b28/0x2600 [kvm]
[ 168.792014] [<ffffffffa1819cf0>] ? init_kvm_mmu+0x1100/0x1100 [kvm]
[ 168.792019] [<ffffffff8129e350>] ? debug_check_no_locks_freed+0x350/0x350
[ 168.792044] [<ffffffffa1819cf0>] ? init_kvm_mmu+0x1100/0x1100 [kvm]
[ 168.792076] [<ffffffffa181c36d>] paging64_gva_to_gpa+0x7d/0x110 [kvm]
[ 168.792121] [<ffffffffa181c2f0>] ? paging64_walk_addr_generic+0x2600/0x2600 [kvm]
[ 168.792130] [<ffffffff812e848b>] ? debug_lockdep_rcu_enabled+0x7b/0x90
[ 168.792178] [<ffffffffa17d9a4a>] emulator_read_write_onepage+0x27a/0x1150 [kvm]
[ 168.792208] [<ffffffffa1794d44>] ? __kvm_read_guest_page+0x54/0x70 [kvm]
[ 168.792234] [<ffffffffa17d97d0>] ? kvm_task_switch+0x160/0x160 [kvm]
[ 168.792238] [<ffffffff812e848b>] ? debug_lockdep_rcu_enabled+0x7b/0x90
[ 168.792263] [<ffffffffa17daa07>] emulator_read_write+0xe7/0x6d0 [kvm]
[ 168.792290] [<ffffffffa183b620>] ? em_cr_write+0x230/0x230 [kvm]
[ 168.792314] [<ffffffffa17db005>] emulator_write_emulated+0x15/0x20 [kvm]
[ 168.792340] [<ffffffffa18465f8>] segmented_write+0xf8/0x130 [kvm]
[ 168.792367] [<ffffffffa1846500>] ? em_lgdt+0x20/0x20 [kvm]
[ 168.792374] [<ffffffffa14db512>] ? vmx_read_guest_seg_ar+0x42/0x1e0 [kvm_intel]
[ 168.792400] [<ffffffffa1846d82>] writeback+0x3f2/0x700 [kvm]
[ 168.792424] [<ffffffffa1846990>] ? em_sidt+0xa0/0xa0 [kvm]
[ 168.792449] [<ffffffffa185554d>] ? x86_decode_insn+0x1b3d/0x4f70 [kvm]
[ 168.792474] [<ffffffffa1859032>] x86_emulate_insn+0x572/0x3010 [kvm]
[ 168.792499] [<ffffffffa17e71dd>] x86_emulate_instruction+0x3bd/0x2110 [kvm]
[ 168.792524] [<ffffffffa17e6e20>] ? reexecute_instruction.part.110+0x2e0/0x2e0 [kvm]
[ 168.792532] [<ffffffffa14e9a81>] handle_ept_misconfig+0x61/0x460 [kvm_intel]
[ 168.792539] [<ffffffffa14e9a20>] ? handle_pause+0x450/0x450 [kvm_intel]
[ 168.792546] [<ffffffffa15130ea>] vmx_handle_exit+0xd6a/0x1ad0 [kvm_intel]
[ 168.792572] [<ffffffffa17f6a6c>] ? kvm_arch_vcpu_ioctl_run+0xbdc/0x6090 [kvm]
[ 168.792597] [<ffffffffa17f6bcd>] kvm_arch_vcpu_ioctl_run+0xd3d/0x6090 [kvm]
[ 168.792621] [<ffffffffa17f6a6c>] ? kvm_arch_vcpu_ioctl_run+0xbdc/0x6090 [kvm]
[ 168.792627] [<ffffffff8293b530>] ? __ww_mutex_lock_interruptible+0x1630/0x1630
[ 168.792651] [<ffffffffa17f5e90>] ? kvm_arch_vcpu_runnable+0x4f0/0x4f0 [kvm]
[ 168.792656] [<ffffffff811eeb30>] ? preempt_notifier_unregister+0x190/0x190
[ 168.792681] [<ffffffffa17e0447>] ? kvm_arch_vcpu_load+0x127/0x650 [kvm]
[ 168.792704] [<ffffffffa178e9a3>] kvm_vcpu_ioctl+0x553/0xda0 [kvm]
[ 168.792727] [<ffffffffa178e450>] ? vcpu_put+0x40/0x40 [kvm]
[ 168.792732] [<ffffffff8129e350>] ? debug_check_no_locks_freed+0x350/0x350
[ 168.792735] [<ffffffff82946087>] ? _raw_spin_unlock+0x27/0x40
[ 168.792740] [<ffffffff8163a943>] ? handle_mm_fault+0x1673/0x2e40
[ 168.792744] [<ffffffff8129daa8>] ? trace_hardirqs_on_caller+0x478/0x6c0
[ 168.792747] [<ffffffff8129dcfd>] ? trace_hardirqs_on+0xd/0x10
[ 168.792751] [<ffffffff812e848b>] ? debug_lockdep_rcu_enabled+0x7b/0x90
[ 168.792756] [<ffffffff81725a80>] do_vfs_ioctl+0x1b0/0x12b0
[ 168.792759] [<ffffffff817258d0>] ? ioctl_preallocate+0x210/0x210
[ 168.792763] [<ffffffff8174aef3>] ? __fget+0x273/0x4a0
[ 168.792766] [<ffffffff8174acd0>] ? __fget+0x50/0x4a0
[ 168.792770] [<ffffffff8174b1f6>] ? __fget_light+0x96/0x2b0
[ 168.792773] [<ffffffff81726bf9>] SyS_ioctl+0x79/0x90
[ 168.792777] [<ffffffff82946880>] entry_SYSCALL_64_fastpath+0x23/0xc1
[ 168.792780] ================================================================================
Signed-off-by: Mike Krinkin <krinkin.m.u@gmail.com>
Reviewed-by: Xiao Guangrong <guangrong.xiao@linux.intel.com>
Cc: stable@vger.kernel.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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This doesn't seem to fix a regression -- I don't think the CLAC was
ever there.
I double-checked in a debugger: entries through the int80 gate do
not automatically clear AC.
Stable maintainers: I can provide a backport to 4.3 and earlier if
needed. This needs to be backported all the way to 3.10.
Reported-by: Brian Gerst <brgerst@gmail.com>
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: <stable@vger.kernel.org> # v3.10 and later
Fixes: 63bcff2a307b ("x86, smap: Add STAC and CLAC instructions to control user space access")
Link: http://lkml.kernel.org/r/b02b7e71ae54074be01fc171cbd4b72517055c0e.1456345086.git.luto@kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Pull ARC fixes from Vineet Gupta:
- Fix for csd deadlock due to missing self IPI
- Accompanying IPI cleanups / optimization
- Brown paper bag bug in one of the cleanups above
- Boot reporting updates for new hardware features
- Don't force DEVTMPFS if INITRAMFS
* tag 'arc-4.5-rc6-fixes-upd' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc:
arc: SMP: CONFIG_ARC_IPI_DBG cleanup
ARC: SMP: No need for CONFIG_ARC_IPI_DBG
ARCv2: Elide sending new cross core intr if receiver didn't ack prev
ARCv2: SMP: Push IPI_IRQ into IPI provider
ARC: [intc-compact] Remove IPI setup from ARCompact port
ARCv2: SMP: Emulate IPI to self using software triggered interrupt
arc: get rid of DEVTMPFS dependency on INITRAMFS_SOURCE
ARCv2: boot report CCMs (Closely Coupled Memories)
ARCv2: boot print Low Latency Memory
ARC: Assume multiplier is always present
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The GICv3 architecture spec says:
Writing to the active priority registers in any order other than
the following order will result in UNPREDICTABLE behavior:
- ICH_AP0R<n>_EL2.
- ICH_AP1R<n>_EL2.
So let's not pointlessly go against the rule...
Acked-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
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Renesas ARM Based SoC Fixes for v4.5
* Avoid writing to .text
* tag 'renesas-soc-fixes-for-v4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
ARM: shmobile: Remove shmobile_boot_arg
ARM: shmobile: Move shmobile_smp_{mpidr, fn, arg}[] from .text to .bss
ARM: shmobile: r8a7779: Remove remainings of removed SCU boot setup code
ARM: shmobile: Move shmobile_scu_base from .text to .bss
Signed-off-by: Olof Johansson <olof@lixom.net>
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Commit e8dd2d2d641c ("Silence compiler warning in arch/x86/kvm/emulate.c",
2015-09-06) broke boot of the Hurd. The bug is that the "default:"
case actually could modify "la", but after the patch this change is
not reflected in *linear.
The bug is visible whenever a non-zero segment base causes the linear
address to wrap around the 4GB mark.
Fixes: e8dd2d2d641cb2724ee10e76c0ad02e04289c017
Cc: stable@vger.kernel.org
Reported-by: Aurelien Jarno <aurelien@aurel32.net>
Tested-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Sometimes when setting a breakpoint a process doesn't stop on it.
This is because the debug registers are not loaded correctly on
VCPU load.
The following simple reproducer from Oleg Nesterov tries using debug
registers in two threads. To see the bug, run a 2-VCPU guest with
"taskset -c 0" and run "./bp 0 1" inside the guest.
#include <unistd.h>
#include <signal.h>
#include <stdlib.h>
#include <stdio.h>
#include <sys/wait.h>
#include <sys/ptrace.h>
#include <sys/user.h>
#include <asm/debugreg.h>
#include <assert.h>
#define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER)
unsigned long encode_dr7(int drnum, int enable, unsigned int type, unsigned int len)
{
unsigned long dr7;
dr7 = ((len | type) & 0xf)
<< (DR_CONTROL_SHIFT + drnum * DR_CONTROL_SIZE);
if (enable)
dr7 |= (DR_GLOBAL_ENABLE << (drnum * DR_ENABLE_SIZE));
return dr7;
}
int write_dr(int pid, int dr, unsigned long val)
{
return ptrace(PTRACE_POKEUSER, pid,
offsetof (struct user, u_debugreg[dr]),
val);
}
void set_bp(pid_t pid, void *addr)
{
unsigned long dr7;
assert(write_dr(pid, 0, (long)addr) == 0);
dr7 = encode_dr7(0, 1, DR_RW_EXECUTE, DR_LEN_1);
assert(write_dr(pid, 7, dr7) == 0);
}
void *get_rip(int pid)
{
return (void*)ptrace(PTRACE_PEEKUSER, pid,
offsetof(struct user, regs.rip), 0);
}
void test(int nr)
{
void *bp_addr = &&label + nr, *bp_hit;
int pid;
printf("test bp %d\n", nr);
assert(nr < 16); // see 16 asm nops below
pid = fork();
if (!pid) {
assert(ptrace(PTRACE_TRACEME, 0,0,0) == 0);
kill(getpid(), SIGSTOP);
for (;;) {
label: asm (
"nop; nop; nop; nop;"
"nop; nop; nop; nop;"
"nop; nop; nop; nop;"
"nop; nop; nop; nop;"
);
}
}
assert(pid == wait(NULL));
set_bp(pid, bp_addr);
for (;;) {
assert(ptrace(PTRACE_CONT, pid, 0, 0) == 0);
assert(pid == wait(NULL));
bp_hit = get_rip(pid);
if (bp_hit != bp_addr)
fprintf(stderr, "ERR!! hit wrong bp %ld != %d\n",
bp_hit - &&label, nr);
}
}
int main(int argc, const char *argv[])
{
while (--argc) {
int nr = atoi(*++argv);
if (!fork())
test(nr);
}
while (wait(NULL) > 0)
;
return 0;
}
Cc: stable@vger.kernel.org
Suggested-by: Nadav Amit <namit@cs.technion.ac.il>
Reported-by: Andrey Wagin <avagin@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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|
On an MMIO access, we always copy the on-stack buffer info
the shared "run" structure, even if this is a read access.
This ends up leaking up to 8 bytes of uninitialized memory
into userspace, depending on the size of the access.
An obvious fix for this one is to only perform the copy if
this is an actual write.
Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
|
|
Previous Commit ("ARC: SMP: No need for CONFIG_ARC_IPI_DBG") removed
the Kconfig option ARC_IPI_DBG. Remove the last reference on this
option.
Signed-off-by: Valentin Rothberg <valentinrothberg@gmail.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
|
|
Two omap fixes for omaps against v4.5-rc5:
- Yet another fix for n900 onenand to avoid corruption. This time to
fix the issue of mounting onenand back and forth between the original
maemo kernel and mainline Linux kernel. And it also seems there will
be two more fixes coming via the MTD tree as issues were discovered
also in the onenand driver during testing.
- Revert tps65217 regulator clean up as it breaks MMC for am335x
variants. The proper way to clean this up is just to rename the
tps65217.dtsi file into tps65217-am335x.dtsi as a similar setup
is used on many am335x boards.
* tag 'omap-for-v4.5/fixes-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: OMAP2+: Fix onenand initialization to avoid filesystem corruption
Revert "regulator: tps65217: remove tps65217.dtsi file"
Signed-off-by: Olof Johansson <olof@lixom.net>
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|
PIN_PA15 macro has the same value as PIN_PA14 so we were overriding PA14
mux/configuration.
Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Reported-by: Cyrille Pitchen <cyrille.pitchen@atmel.com>
Fixes: 7f16cb676c00 ("ARM: at91/dt: add sama5d2 pinmux")
Cc: <stable@vger.kernel.org> # v4.4+
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
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|
The i.MX fixes for v4.5:
- Drop the bogus interrupt-parent from i.MX6 CAAM node, which leads to
the CAAM IRQs not getting unmasked at the GPC level.
* tag 'imx-fixes-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
ARM: dts: imx6: remove bogus interrupt-parent from CAAM node
Signed-off-by: Olof Johansson <olof@lixom.net>
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|
Few fixes for omaps against v4.5-rc3:
- Improve omap_device error message to tell driver writers what is
wrong after commit 5de85b9d57ab ("PM / runtime: Re-init runtime PM
states at probe error and driver unbind"). There will be also a
handful of driver related fixes also queued separately. But adding
this error message makes it easy to fix any omap_device using
drivers suffering from this issue so I think it's important to
have.
- Also related to commit 5de85b9d57ab discussion, let's fix a bug
where disabling PM runtime via sysfs will also cause the hardware
state to be different from PM runtime state.
- Fix audio clocks for beagle-x15.
- Use wakeup-source instead of gpio-key,wakeup for the new entries
that sneaked in during the merge window.
- Fix a legacy booting vs device tree based booting regression for
n900 where the legacy user space expects to have the device
revision available in /proc/atags also when booted with device
tree.
* tag 'omap-for-v4.5/fixes-rc3-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: OMAP2+: Fix omap_device for module reload on PM runtime forbid
ARM: OMAP2+: Improve omap_device error for driver writers
ARM: DTS: am57xx-beagle-x15: Select SYS_CLK2 for audio clocks
ARM: dts: am335x/am57xx: replace gpio-key,wakeup with wakeup-source property
ARM: OMAP2+: Set system_rev from ATAGS for n900
Signed-off-by: Olof Johansson <olof@lixom.net>
|
|
mvebu fixes for 4.5 (part 2)
- Fix the missing mtd flash on linkstation lswtgl
- Use unique machine name for the kirkwood ds112 (for Debian flash-kernel tool)
* tag 'mvebu-fixes-4.5-2' of git://git.infradead.org/linux-mvebu:
ARM: dts: orion5x: fix the missing mtd flash on linkstation lswtgl
ARM: dts: kirkwood: use unique machine name for ds112
Signed-off-by: Olof Johansson <olof@lixom.net>
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|
Both before and after 5f310f739b4c ("x86/entry/32: Re-implement
SYSENTER using the new C path"), we relied on a uaccess very early
in the SYSENTER path to clear AC. After that change, though, we can
potentially make it all the way into C code with AC set, which
enlarges the attack surface for SMAP bypass by doing SYSENTER with
AC set.
Strengthen the SMAP protection by addding the missing ASM_CLAC right
at the beginning.
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/3e36be110724896e32a4a1fe73bacb349d3cba94.1456262295.git.luto@kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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|
This was more relevant during SMP bringup.
The warning for bogus msg better be visible always.
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
|
|
ARConnect/MCIP IPI sending has a retry-wait loop in case caller had
not seen a previous such interrupt. Turns out that it is not needed at
all. Linux cross core calling allows coalescing multiple IPIs to same
receiver - it is fine as long as there is one.
This logic is built into upper layer already, at a higher level of
abstraction. ipi_send_msg_one() sets the actual msg payload, but it only
calls MCIP IPI sending if msg holder was empty (using
atomic-set-new-and-get-old construct). Thus it is unlikely that the
retry-wait looping was ever getting exercised at all.
Cc: Chuck Jordan <cjordan@synopsys.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
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|
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
|
|
There is no real ARC700 based SMP SoC so remove IPI definition.
EZChip's SMP ARC700 is going to use a different intc and IPI provider
anyways.
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
|
|
ARConnect/MCIP Inter-Core-Interrupt module can't send interrupt to
local core. So use core intc capability to trigger software
interrupt to self, using an unsued IRQ #21.
This showed up as csd deadlock with LTP trace_sched on a dual core
system. This test acts as scheduler fuzzer, triggering all sorts of
schedulting activity. Trouble starts with IPI to self, which doesn't get
delivered (effectively lost due to H/w capability), but the msg intended
to be sent remain enqueued in per-cpu @ipi_data.
All subsequent IPIs to this core from other cores get elided due to the
IPI coalescing optimization in ipi_send_msg_one() where a pending msg
implies an IPI already sent and assumes other core is yet to ack it.
After the elided IPI, other core simply goes into csd_lock_wait()
but never comes out as this core never sees the interrupt.
Fixes STAR 9001008624
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: <stable@vger.kernel.org> [4.2]
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
|
|
In commit 11f1a4b9755f ("x86: reorganize SMAP handling in user space
accesses") I changed how the stac/clac instructions were generated
around the user space accesses, which then made it possible to do
batched accesses efficiently for user string copies etc.
However, in doing so, I completely spaced out, and didn't even think
about the 32-bit case. And nobody really even seemed to notice, because
SMAP doesn't even exist until modern Skylake processors, and you'd have
to be crazy to run 32-bit kernels on a modern CPU.
Which brings us to Andy Lutomirski.
He actually tested the 32-bit kernel on new hardware, and noticed that
it doesn't work. My bad. The trivial fix is to add the required
uaccess begin/end markers around the raw accesses in <asm/uaccess_32.h>.
I feel a bit bad about this patch, just because that header file really
should be cleaned up to avoid all the duplicated code in it, and this
commit just expands on the problem. But this just fixes the bug without
any bigger cleanup surgery.
Reported-and-tested-by: Andy Lutomirski <luto@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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|
Even though DEVTMPFS is required when our pre-built initramfs
is used it is not the case in general. It is perfectly possible
to use initramfs with device nodes already populated or there
could be other usages, see discussion below for more detials:
http://thread.gmane.org/gmane.comp.embedded.openwrt.devel/37819/focus=37821
This change removes mentioned dependency from arch/arc/Kconfig
updating instead those defconfigs that are usually used with this
kind of pre-build initramfs.
And while at it all touched defconfigs were regenerated via
savedefconfig and some options were removed:
* USB is selected by other options implicitly
* VGA_CONSOLE is disableb for ARC since
031e29b5877f31676739dc2f847d04c2c0732034
* EXT3_FS automatically selects EXT4_FS
* MTDxxx and JFFS2_FS make no sense for AXS because
AXS NAND controller is not upstreamed
* NET_OSCI_LAN is not in upstream as well
* ARCPGU_xxx options make no sense because ARC PGU is not yet
in upstream and when it gets there all config options would
be taken from devicetree
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
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|
Currently when setting up an IMR around the kernel's .text section we lock
that IMR, preventing further modification. While superficially this appears
to be the right thing to do, in fact this doesn't account for a legitimate
change in the memory map such as when executing a new kernel via kexec.
In such a scenario a second kernel can have a different size and location
to it's predecessor and can view some of the memory occupied by it's
predecessor as legitimately usable DMA RAM. If this RAM were then
subsequently allocated to DMA agents within the system it could conceivably
trigger an IMR violation.
This patch fixes the this potential situation by keeping the kernel's .text
section IMR lock bit false by default.
Suggested-by: Ingo Molnar <mingo@kernel.org>
Reported-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Bryan O'Donoghue <pure.logic@nexus-software.ie>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: boon.leong.ong@intel.com
Cc: paul.gortmaker@windriver.com
Link: http://lkml.kernel.org/r/1456190999-12685-2-git-send-email-pure.logic@nexus-software.ie
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Pull xen bug fixes from David Vrabel:
- Two scsiback fixes (resource leak and spurious warning).
- Fix DMA mapping of compound pages on arm/arm64.
- Fix some pciback regressions in MSI-X handling.
- Fix a pcifront crash due to some uninitialize state.
* tag 'for-linus-4.5-rc5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
xen/pcifront: Fix mysterious crashes when NUMA locality information was extracted.
xen/pcifront: Report the errors better.
xen/pciback: Save the number of MSI-X entries to be copied later.
xen/pciback: Check PF instead of VF for PCI_COMMAND_MEMORY
xen: fix potential integer overflow in queue_reply
xen/arm: correctly handle DMA mapping of compound pages
xen/scsiback: avoid warnings when adding multiple LUNs to a domain
xen/scsiback: correct frontend counting
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Commit e7b11dc7b77b ("ARM: OMAP2+: Fix onenand rate detection to avoid
filesystem corruption") partially fixed onenand configuration when GPMC
module is reset. Finish the job by also providing the correct values in
ONENAND_REG_SYS_CFG1 register.
Fixes: e7b11dc7b77b ("ARM: OMAP2+: Fix onenand rate detection to avoid
filesystem corruption")
Cc: stable@vger.kernel.org # v4.2+
Signed-off-by: Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com>
Tested-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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git commit 904818e2f229f3d94ec95f6932a6358c81e73d78
"s390/kernel: introduce fpu-internal.h with fpu helper functions"
introduced the fpregs_store / fp_regs_load helper. These function
fail to save and restore the floating pointer control registers.
The effect is that the FPC is not correctly handled on signal
delivery and signal return.
Cc: stable@vger.kernel.org # 4.4
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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git commit 8070361799ae1e3f4ef347bd10f0a508ac10acfb
"s390: add support for vector extension"
broke 31-bit compat processes in regard to signal handling.
The restore_sigregs_ext32() function is used to restore the additional
elements from the user space signal frame. Among the additional elements
are the upper registers halves for 64-bit register support for 31-bit
processes. The copy_from_user that is used to retrieve the high-gprs
array from the user stack uses an incorrect length, 8 bytes instead of
64 bytes. This causes incorrect upper register halves to get loaded.
Cc: stable@vger.kernel.org # 3.8+
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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We can get a hash pte fault with 4k base page size and find the pte
already inserted with 64K base page size. In that case we need to clear
the existing slot information from the old pte. Fix this correctly
With THP, we also clear the slot information with respect to all
the 64K hash pte mapping that 16MB page. They are all invalid
now. This make sure we don't find the slot valid when we fault with
4k base page size. Finding the slot valid should not result in any wrong
behavior because we do check again in hash page table for the validity.
But we can avoid that check completely.
Fixes: a43c0eb8364c022 ("powerpc/mm: Convert 4k hash insert to C")
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
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|
During error recovery, the device could be removed as part of the
partial hotplug. The criterion used to come with partial hotplug
is: if the device driver provides error_detected(), slot_reset()
and resume() callbacks, it's immune from hotplug. Otherwise,
it's going to experience partial hotplug during EEH recovery. But
the criterion isn't correct enough: mlx4_core driver for Mellanox
adapters provides error_detected(), slot_reset() callbacks, but
resume() isn't there. Those Mellanox adapters won't be to involved
in the partial hotplug.
This fixes the criterion to a practical one: adpater with driver
that provides error_detected(), slot_reset() will be immune from
partial hotplug. resume() isn't mandatory.
Fixes: f2da4ccf ("powerpc/eeh: More relaxed hotplug criterion")
Cc: stable@vger.kernel.org #v4.4+
Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
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Pull x86 fixes from Ingo Molnar:
"This is unusually large, partly due to the EFI fixes that prevent
accidental deletion of EFI variables through efivarfs that may brick
machines. These fixes are somewhat involved to maintain compatibility
with existing install methods and other usage modes, while trying to
turn off the 'rm -rf' bricking vector.
Other fixes are for large page ioremap()s and for non-temporal
user-memcpy()s"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/mm: Fix vmalloc_fault() to handle large pages properly
hpet: Drop stale URLs
x86/uaccess/64: Handle the caching of 4-byte nocache copies properly in __copy_user_nocache()
x86/uaccess/64: Make the __copy_user_nocache() assembly code more readable
lib/ucs2_string: Correct ucs2 -> utf8 conversion
efi: Add pstore variables to the deletion whitelist
efi: Make efivarfs entries immutable by default
efi: Make our variable validation list include the guid
efi: Do variable name validation tests in utf8
efi: Use ucs2_as_utf8 in efivarfs instead of open coding a bad version
lib/ucs2_string: Add ucs2 -> utf8 helper functions
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Pull perf fixes from Ingo Molnar:
"A handful of CPU hotplug related fixes"
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf/core: Plug potential memory leak in CPU_UP_PREPARE
perf/core: Remove the bogus and dangerous CPU_DOWN_FAILED hotplug state
perf/core: Remove bogus UP_CANCELED hotplug state
perf/x86/amd/uncore: Plug reference leak
|
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Pull powerpc fixes from Michael Ellerman:
- Fix build error on 32-bit with checkpoint restart from Aneesh Kumar
- Fix dedotify for binutils >= 2.26 from Andreas Schwab
- Don't trace hcalls on offline CPUs from Denis Kirjanov
- eeh: Fix stale cached primary bus from Gavin Shan
- eeh: Fix stale PE primary bus from Gavin Shan
- mm: Fix Multi hit ERAT cause by recent THP update from Aneesh Kumar K.V
- ioda: Set "read" permission when "write" is set from Alexey Kardashevskiy
* tag 'powerpc-4.5-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/ioda: Set "read" permission when "write" is set
powerpc/mm: Fix Multi hit ERAT cause by recent THP update
powerpc/powernv: Fix stale PE primary bus
powerpc/eeh: Fix stale cached primary bus
powerpc/pseries: Don't trace hcalls on offline CPUs
powerpc: Fix dedotify for binutils >= 2.26
powerpc/book3s_32: Fix build error with checkpoint restart
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Merge fixes from Andrew Morton:
"10 fixes"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
mm: slab: free kmem_cache_node after destroy sysfs file
ipc/shm: handle removed segments gracefully in shm_mmap()
MAINTAINERS: update Kselftest Framework mailing list
devm_memremap_release(): fix memremap'd addr handling
mm/hugetlb.c: fix incorrect proc nr_hugepages value
mm, x86: fix pte_page() crash in gup_pte_range()
fsnotify: turn fsnotify reaper thread into a workqueue job
Revert "fsnotify: destroy marks with call_srcu instead of dedicated thread"
mm: fix regression in remap_file_pages() emulation
thp, dax: do not try to withdraw pgtable from non-anon VMA
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This reverts commit 8e6ebfaa9b384088002baa10f7534efa73a0794e.
Without the patch reverted regulators will not work. This prevents
MMC to be working for example so the boards can not boot to
MMC rootfs.
Tested it on beaglebone white and bisect also points to the
reverted commit.
The issue can be also fixed by adding "regulator-compatible =" to all board
dts file for the regulators.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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Pull arm64 fixes from Will Deacon:
"Here are some more arm64 fixes for 4.5. This has mostly come from
Yang Shi, who saw some issues under -rt that also affect mainline.
The rest of it is pretty small, but still worth having.
We've got an old issue outstanding with valid_user_regs which will
likely wait until 4.6 (since it would really benefit from some time in
-next) and another issue with kasan and idle which should be fixed
next week.
Apart from that, pretty quiet here (and still no sign of the THP issue
reported on s390...)
Summary:
- Allow EFI stub to use strnlen(), which is required by recent libfdt
- Avoid smp_processor_id() in preempt context during unwinding
- Avoid false Kasan warnings during unwinding
- Ensure early devices are picked up by the IOMMU DMA ops
- Avoid rebuilding the kernel for the 'install' target
- Run fixup handlers for alignment faults on userspace access"
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: mm: allow the kernel to handle alignment faults on user accesses
arm64: kbuild: make "make install" not depend on vmlinux
arm64: dma-mapping: fix handling of devices registered before arch_initcall
arm64/efi: Make strnlen() available to the EFI namespace
arm/arm64: crypto: assure that ECB modes don't require an IV
arm64: make irq_stack_ptr more robust
arm64: debug: re-enable irqs before sending breakpoint SIGTRAP
arm64: disable kasan when accessing frame->fp in unwind_frame
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Pull s390 fixes from Martin Schwidefsky:
"Several bug fixes:
- There are four different stack tracers, and three of them have
bugs. For 4.5 the bugs are fixed and we prepare a cleanup patch
for the next merge window.
- Three bug fixes for the dasd driver in regard to parallel access
volumes and the new max_dev_sectors block device queue limit
- The irq restore optimization needs a fixup for memcpy_real
- The diagnose trace code has a conflict with lockdep"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390/dasd: fix performance drop
s390/maccess: reduce stnsm instructions
s390/diag: avoid lockdep recursion
s390/dasd: fix refcount for PAV reassignment
s390/dasd: prevent incorrect length error under z/VM after PAV changes
s390: fix DAT off memory access, e.g. on kdump
s390/oprofile: fix address range for asynchronous stack
s390/perf_event: fix address range for asynchronous stack
s390/stacktrace: add save_stack_trace_regs()
s390/stacktrace: save full stack traces
s390/stacktrace: add missing end marker
s390/stacktrace: fix address ranges for asynchronous and panic stack
s390/stacktrace: fix save_stack_trace_tsk() for current task
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Although we don't expect to take alignment faults on access to normal
memory, misbehaving (i.e. buggy) user code can pass MMIO pointers into
system calls, leading to things like get_user accessing device memory.
Rather than OOPS the kernel, allow any exception fixups to run and
return something like -EFAULT back to userspace. This makes the
behaviour more consistent with userspace, even though applications with
access to device mappings can easily cause other issues if they try
hard enough.
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Eun Taik Lee <eun.taik.lee@samsung.com>
[will: dropped __kprobes annotation and rewrote commit mesage]
Signed-off-by: Will Deacon <will.deacon@arm.com>
|
Linus Torvalds
Daniel Cashman
Bjorn Helgaas
Colin Ian King
Dexuan Cui
Paolo Bonzini
Mike Krinkin
Andy Lutomirski
Marc Zyngier
Olof Johansson
Valentin Rothberg
Ludovic Desroches
Vineet Gupta
Alexey Brodkin
Bryan O'Donoghue
Ivaylo Dimitrov
Martin Schwidefsky
Aneesh Kumar K.V
Gavin Shan
Peter Ujfalusi
EunTaik Lee