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git://git.kernel.org/pub/scm/linux/kernel/git/brodo/linux
Pull removal of in-kernel calls to syscalls from Dominik Brodowski:
"System calls are interaction points between userspace and the kernel.
Therefore, system call functions such as sys_xyzzy() or
compat_sys_xyzzy() should only be called from userspace via the
syscall table, but not from elsewhere in the kernel.
At least on 64-bit x86, it will likely be a hard requirement from
v4.17 onwards to not call system call functions in the kernel: It is
better to use use a different calling convention for system calls
there, where struct pt_regs is decoded on-the-fly in a syscall wrapper
which then hands processing over to the actual syscall function. This
means that only those parameters which are actually needed for a
specific syscall are passed on during syscall entry, instead of
filling in six CPU registers with random user space content all the
time (which may cause serious trouble down the call chain). Those
x86-specific patches will be pushed through the x86 tree in the near
future.
Moreover, rules on how data may be accessed may differ between kernel
data and user data. This is another reason why calling sys_xyzzy() is
generally a bad idea, and -- at most -- acceptable in arch-specific
code.
This patchset removes all in-kernel calls to syscall functions in the
kernel with the exception of arch/. On top of this, it cleans up the
three places where many syscalls are referenced or prototyped, namely
kernel/sys_ni.c, include/linux/syscalls.h and include/linux/compat.h"
* 'syscalls-next' of git://git.kernel.org/pub/scm/linux/kernel/git/brodo/linux: (109 commits)
bpf: whitelist all syscalls for error injection
kernel/sys_ni: remove {sys_,sys_compat} from cond_syscall definitions
kernel/sys_ni: sort cond_syscall() entries
syscalls/x86: auto-create compat_sys_*() prototypes
syscalls: sort syscall prototypes in include/linux/compat.h
net: remove compat_sys_*() prototypes from net/compat.h
syscalls: sort syscall prototypes in include/linux/syscalls.h
kexec: move sys_kexec_load() prototype to syscalls.h
x86/sigreturn: use SYSCALL_DEFINE0
x86: fix sys_sigreturn() return type to be long, not unsigned long
x86/ioport: add ksys_ioperm() helper; remove in-kernel calls to sys_ioperm()
mm: add ksys_readahead() helper; remove in-kernel calls to sys_readahead()
mm: add ksys_mmap_pgoff() helper; remove in-kernel calls to sys_mmap_pgoff()
mm: add ksys_fadvise64_64() helper; remove in-kernel call to sys_fadvise64_64()
fs: add ksys_fallocate() wrapper; remove in-kernel calls to sys_fallocate()
fs: add ksys_p{read,write}64() helpers; remove in-kernel calls to syscalls
fs: add ksys_truncate() wrapper; remove in-kernel calls to sys_truncate()
fs: add ksys_sync_file_range helper(); remove in-kernel calls to syscall
kernel: add ksys_setsid() helper; remove in-kernel call to sys_setsid()
kernel: add ksys_unshare() helper; remove in-kernel calls to sys_unshare()
...
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git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic
Pul removal of obsolete architecture ports from Arnd Bergmann:
"This removes the entire architecture code for blackfin, cris, frv,
m32r, metag, mn10300, score, and tile, including the associated device
drivers.
I have been working with the (former) maintainers for each one to
ensure that my interpretation was right and the code is definitely
unused in mainline kernels. Many had fond memories of working on the
respective ports to start with and getting them included in upstream,
but also saw no point in keeping the port alive without any users.
In the end, it seems that while the eight architectures are extremely
different, they all suffered the same fate: There was one company in
charge of an SoC line, a CPU microarchitecture and a software
ecosystem, which was more costly than licensing newer off-the-shelf
CPU cores from a third party (typically ARM, MIPS, or RISC-V). It
seems that all the SoC product lines are still around, but have not
used the custom CPU architectures for several years at this point. In
contrast, CPU instruction sets that remain popular and have actively
maintained kernel ports tend to all be used across multiple licensees.
[ See the new nds32 port merged in the previous commit for the next
generation of "one company in charge of an SoC line, a CPU
microarchitecture and a software ecosystem" - Linus ]
The removal came out of a discussion that is now documented at
https://lwn.net/Articles/748074/. Unlike the original plans, I'm not
marking any ports as deprecated but remove them all at once after I
made sure that they are all unused. Some architectures (notably tile,
mn10300, and blackfin) are still being shipped in products with old
kernels, but those products will never be updated to newer kernel
releases.
After this series, we still have a few architectures without mainline
gcc support:
- unicore32 and hexagon both have very outdated gcc releases, but the
maintainers promised to work on providing something newer. At least
in case of hexagon, this will only be llvm, not gcc.
- openrisc, risc-v and nds32 are still in the process of finishing
their support or getting it added to mainline gcc in the first
place. They all have patched gcc-7.3 ports that work to some
degree, but complete upstream support won't happen before gcc-8.1.
Csky posted their first kernel patch set last week, their situation
will be similar
[ Palmer Dabbelt points out that RISC-V support is in mainline gcc
since gcc-7, although gcc-7.3.0 is the recommended minimum - Linus ]"
This really says it all:
2498 files changed, 95 insertions(+), 467668 deletions(-)
* tag 'arch-removal' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic: (74 commits)
MAINTAINERS: UNICORE32: Change email account
staging: iio: remove iio-trig-bfin-timer driver
tty: hvc: remove tile driver
tty: remove bfin_jtag_comm and hvc_bfin_jtag drivers
serial: remove tile uart driver
serial: remove m32r_sio driver
serial: remove blackfin drivers
serial: remove cris/etrax uart drivers
usb: Remove Blackfin references in USB support
usb: isp1362: remove blackfin arch glue
usb: musb: remove blackfin port
usb: host: remove tilegx platform glue
pwm: remove pwm-bfin driver
i2c: remove bfin-twi driver
spi: remove blackfin related host drivers
watchdog: remove bfin_wdt driver
can: remove bfin_can driver
mmc: remove bfin_sdh driver
input: misc: remove blackfin rotary driver
input: keyboard: remove bf54x driver
...
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git://git.kernel.org/pub/scm/linux/kernel/git/greentime/linux
Pull nds32 architecture support from Greentime Hu:
"This contains the core nds32 Linux port (including interrupt
controller driver and timer driver), which has been through seven
rounds of review on mailing list.
It is able to boot to shell and passes most LTP-2017 testsuites in
nds32 AE3XX platform:
Total Tests: 1901
Total Skipped Tests: 618
Total Failures: 78"
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
* tag 'nds32-for-linus-4.17' of git://git.kernel.org/pub/scm/linux/kernel/git/greentime/linux: (44 commits)
nds32: To use the generic dump_stack()
nds32: fix building failed if using elf toolchain.
nios2: add ioremap_nocache declaration before include asm-generic/io.h.
nds32: fix building failed if using older version gcc.
dt-bindings: timer: Add andestech atcpit100 timer binding doc
clocksource/drivers/atcpit100: VDSO support
clocksource/drivers/atcpit100: Add andestech atcpit100 timer
net: faraday add nds32 support.
irqchip: Andestech Internal Vector Interrupt Controller driver
dt-bindings: interrupt-controller: Andestech Internal Vector Interrupt Controller
dt-bindings: nds32 SoC Bindings
dt-bindings: nds32 L2 cache controller Bindings
dt-bindings: nds32 CPU Bindings
MAINTAINERS: Add nds32
nds32: Build infrastructure
nds32: defconfig
nds32: Miscellaneous header files
nds32: Device tree support
nds32: Generic timers support
nds32: Loadable modules
...
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git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k
Pull m68k updates from Geert Uytterhoeven:
- Macintosh enhancements and fixes
- Remove useless memory layout printing using hashed pointers
- Add missing Amiga Zorro bus DMA mask
- Small fixes and cleanups
- Defconfig updates
* tag 'm68k-for-v4.17-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k:
m68k/mac: Remove bogus "FIXME" comment
m68k/mac: Enable RTC for 100-series PowerBooks
m68k/mac: Clean up whitespace and remove redundant parentheses
m68k/defconfig: Update defconfigs for v4.16-rc5
zorro: Set up z->dev.dma_mask for the DMA API
m68k/time: Stop validating rtc_time in .read_time
m68k/mm: Stop printing the virtual memory layout
macintosh/via-pmu68k: Initialize PMU driver with setup_arch and arch_initcall
m68k/mac: Fix apparent race condition in Baboon interrupt dispatch
m68k/mac: Enable PDMA support for PowerBook 190
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull EFI updates from Ingo Molnar:
"The main EFI changes in this cycle were:
- Fix the apple-properties code (Andy Shevchenko)
- Add WARN() on arm64 if UEFI Runtime Services corrupt the reserved
x18 register (Ard Biesheuvel)
- Use efi_switch_mm() on x86 instead of manipulating %cr3 directly
(Sai Praneeth)
- Fix early memremap leak in ESRT code (Ard Biesheuvel)
- Switch to L"xxx" notation for wide string literals (Ard Biesheuvel)
- ... plus misc other cleanups and bugfixes"
* 'efi-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/efi: Use efi_switch_mm() rather than manually twiddling with %cr3
x86/efi: Replace efi_pgd with efi_mm.pgd
efi: Use string literals for efi_char16_t variable initializers
efi/esrt: Fix handling of early ESRT table mapping
efi: Use efi_mm in x86 as well as ARM
efi: Make const array 'apple' static
efi/apple-properties: Use memremap() instead of ioremap()
efi: Reorder pr_notice() with add_device_randomness() call
x86/efi: Replace GFP_ATOMIC with GFP_KERNEL in efi_query_variable_store()
efi/arm64: Check whether x18 is preserved by runtime services calls
efi/arm*: Stop printing addresses of virtual mappings
efi/apple-properties: Remove redundant attribute initialization from unmarshal_key_value_pairs()
efi/arm*: Only register page tables when they exist
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 dma mapping updates from Ingo Molnar:
"This tree, by Christoph Hellwig, switches over the x86 architecture to
the generic dma-direct and swiotlb code, and also unifies more of the
dma-direct code between architectures. The now unused x86-only
primitives are removed"
* 'x86-dma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
dma-mapping: Don't clear GFP_ZERO in dma_alloc_attrs
swiotlb: Make swiotlb_{alloc,free}_buffer depend on CONFIG_DMA_DIRECT_OPS
dma/swiotlb: Remove swiotlb_{alloc,free}_coherent()
dma/direct: Handle force decryption for DMA coherent buffers in common code
dma/direct: Handle the memory encryption bit in common code
dma/swiotlb: Remove swiotlb_set_mem_attributes()
set_memory.h: Provide set_memory_{en,de}crypted() stubs
x86/dma: Remove dma_alloc_coherent_gfp_flags()
iommu/intel-iommu: Enable CONFIG_DMA_DIRECT_OPS=y and clean up intel_{alloc,free}_coherent()
iommu/amd_iommu: Use CONFIG_DMA_DIRECT_OPS=y and dma_direct_{alloc,free}()
x86/dma/amd_gart: Use dma_direct_{alloc,free}()
x86/dma/amd_gart: Look at dev->coherent_dma_mask instead of GFP_DMA
x86/dma: Use generic swiotlb_ops
x86/dma: Use DMA-direct (CONFIG_DMA_DIRECT_OPS=y)
x86/dma: Remove dma_alloc_coherent_mask()
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull wait_var_event updates from Ingo Molnar:
"This introduces the new wait_var_event() API, which is a more flexible
waiting primitive than wait_on_atomic_t().
All wait_on_atomic_t() users are migrated over to the new API and
wait_on_atomic_t() is removed. The migration fixes one bug and should
result in no functional changes for the other usecases"
* 'sched-wait-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/wait: Improve __var_waitqueue() code generation
sched/wait: Remove the wait_on_atomic_t() API
sched/wait, arch/mips: Fix and convert wait_on_atomic_t() usage to the new wait_var_event() API
sched/wait, fs/ocfs2: Convert wait_on_atomic_t() usage to the new wait_var_event() API
sched/wait, fs/nfs: Convert wait_on_atomic_t() usage to the new wait_var_event() API
sched/wait, fs/fscache: Convert wait_on_atomic_t() usage to the new wait_var_event() API
sched/wait, fs/btrfs: Convert wait_on_atomic_t() usage to the new wait_var_event() API
sched/wait, fs/afs: Convert wait_on_atomic_t() usage to the new wait_var_event() API
sched/wait, drivers/media: Convert wait_on_atomic_t() usage to the new wait_var_event() API
sched/wait, drivers/drm: Convert wait_on_atomic_t() usage to the new wait_var_event() API
sched/wait: Introduce wait_var_event()
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 platform updates from Ingo Molnar:
"The main changes in this cycle were:
- Add "Jailhouse" hypervisor support (Jan Kiszka)
- Update DeviceTree support (Ivan Gorinov)
- Improve DMI date handling (Andy Shevchenko)"
* 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/PCI: Fix a potential regression when using dmi_get_bios_year()
firmware/dmi_scan: Uninline dmi_get_bios_year() helper
x86/devicetree: Use CPU description from Device Tree
of/Documentation: Specify local APIC ID in "reg"
MAINTAINERS: Add entry for Jailhouse
x86/jailhouse: Allow to use PCI_MMCONFIG without ACPI
x86: Consolidate PCI_MMCONFIG configs
x86: Align x86_64 PCI_MMCONFIG with 32-bit variant
x86/jailhouse: Enable PCI mmconfig access in inmates
PCI: Scan all functions when running over Jailhouse
jailhouse: Provide detection for non-x86 systems
x86/devicetree: Fix device IRQ settings in DT
x86/devicetree: Initialize device tree before using it
pci: Simplify code by using the new dmi_get_bios_year() helper
ACPI/sleep: Simplify code by using the new dmi_get_bios_year() helper
x86/pci: Simplify code by using the new dmi_get_bios_year() helper
dmi: Introduce the dmi_get_bios_year() helper function
x86/platform/quark: Re-use DEFINE_SHOW_ATTRIBUTE() macro
x86/platform/atom: Re-use DEFINE_SHOW_ATTRIBUTE() macro
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 mm updates from Ingo Molnar:
- Extend the memmap= boot parameter syntax to allow the redeclaration
and dropping of existing ranges, and to support all e820 range types
(Jan H. Schönherr)
- Improve the W+X boot time security checks to remove false positive
warnings on Xen (Jan Beulich)
- Support booting as Xen PVH guest (Juergen Gross)
- Improved 5-level paging (LA57) support, in particular it's possible
now to have a single kernel image for both 4-level and 5-level
hardware (Kirill A. Shutemov)
- AMD hardware RAM encryption support (SME/SEV) fixes (Tom Lendacky)
- Preparatory commits for hardware-encrypted RAM support on Intel CPUs.
(Kirill A. Shutemov)
- Improved Intel-MID support (Andy Shevchenko)
- Show EFI page tables in page_tables debug files (Andy Lutomirski)
- ... plus misc fixes and smaller cleanups
* 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (56 commits)
x86/cpu/tme: Fix spelling: "configuation" -> "configuration"
x86/boot: Fix SEV boot failure from change to __PHYSICAL_MASK_SHIFT
x86/mm: Update comment in detect_tme() regarding x86_phys_bits
x86/mm/32: Remove unused node_memmap_size_bytes() & CONFIG_NEED_NODE_MEMMAP_SIZE logic
x86/mm: Remove pointless checks in vmalloc_fault
x86/platform/intel-mid: Add special handling for ACPI HW reduced platforms
ACPI, x86/boot: Introduce the ->reduced_hw_early_init() ACPI callback
ACPI, x86/boot: Split out acpi_generic_reduce_hw_init() and export
x86/pconfig: Provide defines and helper to run MKTME_KEY_PROG leaf
x86/pconfig: Detect PCONFIG targets
x86/tme: Detect if TME and MKTME is activated by BIOS
x86/boot/compressed/64: Handle 5-level paging boot if kernel is above 4G
x86/boot/compressed/64: Use page table in trampoline memory
x86/boot/compressed/64: Use stack from trampoline memory
x86/boot/compressed/64: Make sure we have a 32-bit code segment
x86/mm: Do not use paravirtualized calls in native_set_p4d()
kdump, vmcoreinfo: Export pgtable_l5_enabled value
x86/boot/compressed/64: Prepare new top-level page table for trampoline
x86/boot/compressed/64: Set up trampoline memory
x86/boot/compressed/64: Save and restore trampoline memory
...
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 apic updates from Ingo Molnar:
"The main x86 APIC/IOAPIC changes in this cycle were:
- Robustify kexec support to more carefully restore IRQ hardware
state before calling into kexec/kdump kernels. (Baoquan He)
- Clean up the local APIC code a bit (Dou Liyang)
- Remove unused callbacks (David Rientjes)"
* 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/apic: Finish removing unused callbacks
x86/apic: Drop logical_smp_processor_id() inline
x86/apic: Modernize the pending interrupt code
x86/apic: Move pending interrupt check code into it's own function
x86/apic: Set up through-local-APIC mode on the boot CPU if 'noapic' specified
x86/apic: Rename variables and functions related to x86_io_apic_ops
x86/apic: Remove the (now) unused disable_IO_APIC() function
x86/apic: Fix restoring boot IRQ mode in reboot and kexec/kdump
x86/apic: Split disable_IO_APIC() into two functions to fix CONFIG_KEXEC_JUMP=y
x86/apic: Split out restore_boot_irq_mode() from disable_IO_APIC()
x86/apic: Make setup_local_APIC() static
x86/apic: Simplify init_bsp_APIC() usage
x86/x2apic: Mark set_x2apic_phys_mode() as __init
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 RAS updates from Ingo Molnar:
"The main changes in this cycle were:
- AMD MCE support/decoding improvements (Yazen Ghannam)
- general MCE header cleanups and reorganization (Borislav Petkov)"
* 'ras-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
Revert "x86/mce/AMD: Collect error info even if valid bits are not set"
x86/MCE: Cleanup and complete struct mce fields definitions
x86/mce/AMD: Carve out SMCA get_block_address() code
x86/mce/AMD: Get address from already initialized block
x86/mce/AMD, EDAC/mce_amd: Enumerate Reserved SMCA bank type
x86/mce/AMD: Pass the bank number to smca_get_bank_type()
x86/mce/AMD: Collect error info even if valid bits are not set
x86/mce: Issue the 'mcelog --ascii' message only on !AMD
x86/mce: Convert 'struct mca_config' bools to a bitfield
x86/mce: Put private structures and definitions into the internal header
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Using this helper allows us to avoid the in-kernel calls to the
sys_ioperm() syscall. The ksys_ prefix denotes that this function is meant
as a drop-in replacement for the syscall. In particular, it uses the same
calling convention as sys_ioperm().
This patch is part of a series which removes in-kernel calls to syscalls.
On this basis, the syscall entry path can be streamlined. For details, see
http://lkml.kernel.org/r/20180325162527.GA17492@light.dominikbrodowski.net
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Slaby <jslaby@suse.com>
Cc: x86@kernel.org
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
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Using this helper allows us to avoid the in-kernel calls to the
sys_unshare() syscall. The ksys_ prefix denotes that this function is meant
as a drop-in replacement for the syscall. In particular, it uses the same
calling convention as sys_unshare().
This patch is part of a series which removes in-kernel calls to syscalls.
On this basis, the syscall entry path can be streamlined. For details, see
http://lkml.kernel.org/r/20180325162527.GA17492@light.dominikbrodowski.net
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
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Using this helper allows us to avoid the in-kernel calls to the
sys_sync() syscall. The ksys_ prefix denotes that this function
is meant as a drop-in replacement for the syscall. In particular, it
uses the same calling convention as sys_sync().
This patch is part of a series which removes in-kernel calls to syscalls.
On this basis, the syscall entry path can be streamlined. For details, see
http://lkml.kernel.org/r/20180325162527.GA17492@light.dominikbrodowski.net
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
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Using this helper allows us to avoid the in-kernel calls to the sys_chdir()
syscall. The ksys_ prefix denotes that this function is meant as a drop-in
replacement for the syscall. In particular, it uses the same calling
convention as sys_chdir().
This patch is part of a series which removes in-kernel calls to syscalls.
On this basis, the syscall entry path can be streamlined. For details, see
http://lkml.kernel.org/r/20180325162527.GA17492@light.dominikbrodowski.net
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
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Using this helper allows us to avoid the in-kernel calls to the
sys_chroot() syscall. The ksys_ prefix denotes that this function is
meant as a drop-in replacement for the syscall. In particular, it uses the
same calling convention as sys_chroot().
In the near future, the fs-external callers of ksys_chroot() should be
converted to use kern_path()/set_fs_root() directly. Then ksys_chroot()
can be moved within sys_chroot() again.
This patch is part of a series which removes in-kernel calls to syscalls.
On this basis, the syscall entry path can be streamlined. For details, see
http://lkml.kernel.org/r/20180325162527.GA17492@light.dominikbrodowski.net
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
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Using this helper allows us to avoid the in-kernel calls to the sys_mount()
syscall. The ksys_ prefix denotes that this function is meant as a drop-in
replacement for the syscall. In particular, it uses the same calling
convention as sys_mount().
In the near future, all callers of ksys_mount() should be converted to call
do_mount() directly.
This patch is part of a series which removes in-kernel calls to syscalls.
On this basis, the syscall entry path can be streamlined. For details, see
http://lkml.kernel.org/r/20180325162527.GA17492@light.dominikbrodowski.net
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf updates from Ingo Molnar:
"The main kernel side changes were:
- Modernize the kprobe and uprobe creation/destruction tooling ABIs:
The existing text based APIs (kprobe_events and uprobe_events in
tracefs), are naive, limited ABIs in that they require user-space
to clean up after themselves, which is both difficult and fragile
if the tool is buggy or exits unexpectedly. In other words they are
not really suited for modern, robust tooling.
So introduce a modern, file descriptor based ABI that does not have
these limitations: introduce the 'perf_kprobe' and 'perf_uprobe'
PMUs and extend the perf_event_open() syscall to create events with
a kprobe/uprobe attached to them. These [k,u]probe are associated
with this file descriptor, so they are not available in tracefs.
(Song Liu)
- Intel Cannon Lake CPU support (Harry Pan)
- Intel PT cleanups (Alexander Shishkin)
- Improve the performance of pinned/flexible event groups by using RB
trees (Alexey Budankov)
- Add PERF_EVENT_IOC_MODIFY_ATTRIBUTES which allows the modification
of hardware breakpoints, which new ABI variant massively speeds up
existing tooling that uses hardware breakpoints to instrument (and
debug) memory usage.
(Milind Chabbi, Jiri Olsa)
- Various Intel PEBS handling fixes and improvements, and other Intel
PMU improvements (Kan Liang)
- Various perf core improvements and optimizations (Peter Zijlstra)
- ... misc cleanups, fixes and updates.
There's over 200 tooling commits, here's an (imperfect) list of
highlights:
- 'perf annotate' improvements:
* Recognize and handle jumps to other functions as calls, which
improves the navigation along jumps and back. (Arnaldo Carvalho
de Melo)
* Add the 'P' hotkey in TUI annotation to dump annotation output
into a file, to ease e-mail reporting of annotation details.
(Arnaldo Carvalho de Melo)
* Add an IPC/cycles column to the TUI (Jin Yao)
* Improve s390 assembly annotation (Thomas Richter)
* Refactor the output formatting logic to better separate it into
interactive and non-interactive features and add the --stdio2
output variant to demonstrate this. (Arnaldo Carvalho de Melo)
- 'perf script' improvements:
* Add Python 3 support (Jaroslav Škarvada)
* Add --show-round-event (Jiri Olsa)
- 'perf c2c' improvements:
* Add NUMA analysis support (Jiri Olsa)
- 'perf trace' improvements:
* Improve PowerPC support (Ravi Bangoria)
- 'perf inject' improvements:
* Integrate ARM CoreSight traces (Robert Walker)
- 'perf stat' improvements:
* Add the --interval-count option (yuzhoujian)
* Add the --timeout option (yuzhoujian)
- 'perf sched' improvements (Changbin Du)
- Vendor events improvements :
* Add IBM s390 vendor events (Thomas Richter)
* Add and improve arm64 vendor events (John Garry, Ganapatrao
Kulkarni)
* Update POWER9 vendor events (Sukadev Bhattiprolu)
- Intel PT tooling improvements (Adrian Hunter)
- PMU handling improvements (Agustin Vega-Frias)
- Record machine topology in perf.data (Jiri Olsa)
- Various overwrite related cleanups (Kan Liang)
- Add arm64 dwarf post unwind support (Kim Phillips, Jean Pihet)
- ... and lots of other changes, cleanups and fixes, see the shortlog
and Git history for details"
* 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (262 commits)
perf/x86/intel: Enable C-state residency events for Cannon Lake
perf/x86/intel: Add Cannon Lake support for RAPL profiling
perf/x86/pt, coresight: Clean up address filter structure
perf vendor events s390: Add JSON files for IBM z14
perf vendor events s390: Add JSON files for IBM z13
perf vendor events s390: Add JSON files for IBM zEC12 zBC12
perf vendor events s390: Add JSON files for IBM z196
perf vendor events s390: Add JSON files for IBM z10EC z10BC
perf mmap: Be consistent when checking for an unmaped ring buffer
perf mmap: Fix accessing unmapped mmap in perf_mmap__read_done()
perf build: Fix check-headers.sh opts assignment
perf/x86: Update rdpmc_always_available static key to the modern API
perf annotate: Use absolute addresses to calculate jump target offsets
perf annotate: Defer searching for comma in raw line till it is needed
perf annotate: Support jumping from one function to another
perf annotate: Add "_local" to jump/offset validation routines
perf python: Reference Py_None before returning it
perf annotate: Mark jumps to outher functions with the call arrow
perf annotate: Pass function descriptor to its instruction parsing routines
perf annotate: No need to calculate notes->start twice
...
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Pull drm updates from Dave Airlie:
"Cannonlake and Vega12 support are probably the two major things. This
pull lacks nouveau, Ben had some unforseen leave and a few other
blockers so we'll see how things look or maybe leave it for this merge
window.
core:
- Device links to handle sound/gpu pm dependency
- Color encoding/range properties
- Plane clipping into plane check helper
- Backlight helpers
- DP TP4 + HBR3 helper support
amdgpu:
- Vega12 support
- Enable DC by default on all supported GPUs
- Powerplay restructuring and cleanup
- DC bandwidth calc updates
- DC backlight on pre-DCE11
- TTM backing store dropping support
- SR-IOV fixes
- Adding "wattman" like functionality
- DC crc support
- Improved DC dual-link handling
amdkfd:
- GPUVM support for dGPU
- KFD events for dGPU
- Enable PCIe atomics for dGPUs
- HSA process eviction support
- Live-lock fixes for process eviction
- VM page table allocation fix for large-bar systems
panel:
- Raydium RM68200
- AUO G104SN02 V2
- KEO TX31D200VM0BAA
- ARM Versatile panels
i915:
- Cannonlake support enabled
- AUX-F port support added
- Icelake base enabling until internal milestone of forcewake support
- Query uAPI interface (used for GPU topology information currently)
- Compressed framebuffer support for sprites
- kmem cache shrinking when GPU is idle
- Avoid boosting GPU when waited item is being processed already
- Avoid retraining LSPCON link unnecessarily
- Decrease request signaling latency
- Deprecation of I915_SET_COLORKEY_NONE
- Kerneldoc and compiler warning cleanup for upcoming CI enforcements
- Full range ycbcr toggling
- HDCP support
i915/gvt:
- Big refactor for shadow ppgtt
- KBL context save/restore via LRI cmd (Weinan)
- Properly unmap dma for guest page (Changbin)
vmwgfx:
- Lots of various improvements
etnaviv:
- Use the drm gpu scheduler
- prep work for GC7000L support
vc4:
- fix alpha blending
- Expose perf counters to userspace
pl111:
- Bandwidth checking/limiting
- Versatile panel support
sun4i:
- A83T HDMI support
- A80 support
- YUV plane support
- H3/H5 HDMI support
omapdrm:
- HPD support for DVI connector
- remove lots of static variables
msm:
- DSI updates from 10nm / SDM845
- fix for race condition with a3xx/a4xx fence completion irq
- some refactoring/prep work for eventual a6xx support (ie. when we
have a userspace)
- a5xx debugfs enhancements
- some mdp5 fixes/cleanups to prepare for eventually merging
writeback
- support (ie. when we have a userspace)
tegra:
- mmap() fixes for fbdev devices
- Overlay plane for hw cursor fix
- dma-buf cache maintenance support
mali-dp:
- YUV->RGB conversion support
rockchip:
- rk3399/chromebook fixes and improvements
rcar-du:
- LVDS support move to drm bridge
- DT bindings for R8A77995
- Driver/DT support for R8A77970
tilcdc:
- DRM panel support"
* tag 'drm-for-v4.17' of git://people.freedesktop.org/~airlied/linux: (1646 commits)
drm/i915: Fix hibernation with ACPI S0 target state
drm/i915/execlists: Use a locked clear_bit() for synchronisation with interrupt
drm/i915: Specify which engines to reset following semaphore/event lockups
drm/i915/dp: Write to SET_POWER dpcd to enable MST hub.
drm/amdkfd: Use ordered workqueue to restore processes
drm/amdgpu: Fix acquiring VM on large-BAR systems
drm/amd/pp: clean header file hwmgr.h
drm/amd/pp: use mlck_table.count for array loop index limit
drm: Fix uabi regression by allowing garbage mode->type from userspace
drm/amdgpu: Add an ATPX quirk for hybrid laptop
drm/amdgpu: fix spelling mistake: "asssert" -> "assert"
drm/amd/pp: Add new asic support in pp_psm.c
drm/amd/pp: Clean up powerplay code on Vega12
drm/amd/pp: Add smu irq handlers for legacy asics
drm/amd/pp: Fix set wrong temperature range on smu7
drm/amdgpu: Don't change preferred domian when fallback GTT v5
drm/vmwgfx: Bump version patchlevel and date
drm/vmwgfx: use monotonic event timestamps
drm/vmwgfx: Unpin the screen object backup buffer when not used
drm/vmwgfx: Stricter count of legacy surface device resources
...
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Pull networking fixes from David Miller:
1) Fix RCU locking in xfrm_local_error(), from Taehee Yoo.
2) Fix return value assignments and thus error checking in
iwl_mvm_start_ap_ibss(), from Johannes Berg.
3) Don't count header length twice in vti4, from Stefano Brivio.
4) Fix deadlock in rt6_age_examine_exception, from Eric Dumazet.
5) Fix out-of-bounds access in nf_sk_lookup_slow{v4,v6}() from Subash
Abhinov.
6) Check nladdr size in netlink_connect(), from Alexander Potapenko.
7) VF representor SQ numbers are 32 not 16 bits, in mlx5 driver, from
Or Gerlitz.
8) Out of bounds read in skb_network_protocol(), from Eric Dumazet.
9) r8169 driver sets driver data pointer after register_netdev() which
is too late. Fix from Heiner Kallweit.
10) Fix memory leak in mlx4 driver, from Moshe Shemesh.
11) The multi-VLAN decap fix added a regression when dealing with device
that lack a MAC header, such as tun. Fix from Toshiaki Makita.
12) Fix integer overflow in dynamic interrupt coalescing code. From Tal
Gilboa.
13) Use after free in vrf code, from David Ahern.
14) IPV6 route leak between VRFs fix, also from David Ahern.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (81 commits)
net: mvneta: fix enable of all initialized RXQs
net/ipv6: Fix route leaking between VRFs
vrf: Fix use after free and double free in vrf_finish_output
ipv6: sr: fix seg6 encap performances with TSO enabled
net/dim: Fix int overflow
vlan: Fix vlan insertion for packets without ethernet header
net: Fix untag for vlan packets without ethernet header
atm: iphase: fix spelling mistake: "Receiverd" -> "Received"
vhost: validate log when IOTLB is enabled
qede: Do not drop rx-checksum invalidated packets.
hv_netvsc: enable multicast if necessary
ip_tunnel: Resolve ipsec merge conflict properly.
lan78xx: Crash in lan78xx_writ_reg (Workqueue: events lan78xx_deferred_multicast_write)
qede: Fix barrier usage after tx doorbell write.
vhost: correctly remove wait queue during poll failure
net/mlx4_core: Fix memory leak while delete slave's resources
net/mlx4_en: Fix mixed PFC and Global pause user control requests
net/smc: use announced length in sock_recvmsg()
llc: properly handle dev_queue_xmit() return value
strparser: Fix sign of err codes
...
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In mvneta_port_up() we enable relevant RX and TX port queues by write
queues bit map to an appropriate register.
q_map must be ZERO in the beginning of this process.
Signed-off-by: Yelena Krivosheev <yelena@marvell.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Acked-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Miguel reported an skb use after free / double free in vrf_finish_output
when neigh_output returns an error. The vrf driver should return after
the call to neigh_output as it takes over the skb on error path as well.
Patch is a simplified version of Miguel's patch which was written for 4.9,
and updated to top of tree.
Fixes: 8f58336d3f78a ("net: Add ethernet header for pass through VRF device")
Signed-off-by: Miguel Fadon Perlines <mfadon@teldat.com>
Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c fix from Wolfram Sang:
"A simple but worthwhile I2C driver fix for 4.16"
* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: i2c-stm32f7: fix no check on returned setup
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Trivial fix to spelling mistake in message text
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
Pull device mapper fixes from Mike Snitzer:
- Fix a DM multipath regression introduced in a v4.16-rc6 commit:
restore support for loading, and attaching, scsi_dh modules during
multipath table load. Otherwise some users may find themselves unable
to boot, as was reported today:
https://marc.info/?l=linux-scsi&m=152231276114962&w=2
- Fix a DM core ioctl permission check regression introduced in a
v4.16-rc5 commit.
* tag 'for-4.16/dm-fixes-4' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
dm: fix dropped return code from dm_get_bdev_for_ioctl
dm mpath: fix support for loading scsi_dh modules during table load
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Pull rdma fixes from Jason Gunthorpe:
"It has been fairly silent lately on our -rc front. Big queue of
patches on the mailing list going to for-next though.
Bug fixes:
- qedr driver bugfixes causing application hangs, wrong uapi errnos,
and a race condition
- three syzkaller found bugfixes in the ucma uapi
Regression fixes for things introduced in 4.16:
- Crash on error introduced in mlx5 UMR flow
- Crash on module unload/etc introduced by bad interaction of
restrack and mlx5 patches this cycle
- Typo in a two line syzkaller bugfix causing a bad regression
- Coverity report of nonsense code in hns driver"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
RDMA/ucma: Introduce safer rdma_addr_size() variants
RDMA/hns: ensure for-loop actually iterates and free's buffers
RDMA/ucma: Check that device exists prior to accessing it
RDMA/ucma: Check that device is connected prior to access it
RDMA/rdma_cm: Fix use after free race with process_one_req
RDMA/qedr: Fix QP state initialization race
RDMA/qedr: Fix rc initialization on CNQ allocation failure
RDMA/qedr: fix QP's ack timeout configuration
RDMA/ucma: Correct option size check using optlen
RDMA/restrack: Move restrack_clean to be symmetrical to restrack_init
IB/mlx5: Don't clean uninitialized UMR resources
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Pull MTD fixes from Boris Brezillon:
"Two fixes, one in the atmel NAND driver and another one in the
CFI/JEDEC code.
Summary:
- Fix a bug in Atmel ECC engine driver
- Fix a bug in the CFI/JEDEC driver"
* tag 'mtd/fixes-for-4.16' of git://git.infradead.org/linux-mtd:
mtd: jedec_probe: Fix crash in jedec_read_mfr()
mtd: nand: atmel: Fix get_sectorsize() function
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dm_get_bdev_for_ioctl()'s return of 0 or 1 must be the result from
prepare_ioctl (1 means the ioctl was issued to a partition, 0 means it
wasn't). Unfortunately commit 519049afea ("dm: use blkdev_get rather
than bdgrab when issuing pass-through ioctl") reused the variable 'r'
to store the return from blkdev_get() that follows prepare_ioctl()
-- whereby dropping prepare_ioctl()'s result on the floor.
This can lead to an ioctl or persistent reservation being issued to a
partition going unnoticed, which implies the extra permission check for
CAP_SYS_RAWIO is skipped.
Fix this by using a different variable to store blkdev_get()'s return.
Fixes: 519049afea ("dm: use blkdev_get rather than bdgrab when issuing pass-through ioctl")
Reported-by: Alasdair G Kergon <agk@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
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Daniel Borkman says:
====================
pull-request: bpf 2018-03-29
The following pull-request contains BPF updates for your *net* tree.
The main changes are:
1) Fix nfp to properly check max insn count while emitting
instructions in the JIT which was wrongly comparing bytes
against number of instructions before, from Jakub.
2) Fix for bpftool to avoid usage of hex numbers in JSON
output since JSON doesn't accept hex numbers with 0x
prefix, also from Jakub.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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The ability to have multipath dynamically attach a scsi_dh, that the user
specified in the multipath table, was broken by commit e8f74a0f00 ("dm
mpath: eliminate need to use scsi_device_from_queue").
Restore the ability to load, and attach, a particular scsi_dh module if
one is specified (as noticed by checking m->hw_handler_name).
Fixes: e8f74a0f00 ("dm mpath: eliminate need to use scsi_device_from_queue")
Reported-by: Paul Mackerras <paulus@ozlabs.org>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
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Vq log_base is the userspace address of bitmap which has nothing to do
with IOTLB. So it needs to be validated unconditionally otherwise we
may try use 0 as log_base which may lead to pin pages that will lead
unexpected result (e.g trigger BUG_ON() in set_bit_to_user()).
Fixes: 6b1e6cc7855b0 ("vhost: new device IOTLB API")
Reported-by: syzbot+6304bf97ef436580fede@syzkaller.appspotmail.com
Signed-off-by: Jason Wang <jasowang@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Today, driver drops received packets which are indicated as
invalid checksum by the device. Instead of dropping such packets,
pass them to the stack with CHECKSUM_NONE indication in skb.
Signed-off-by: Ariel Elior <ariel.elior@cavium.com>
Signed-off-by: Manish Chopra <manish.chopra@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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It turns out that the loop where we read manufacturer
jedec_read_mfd() can under some circumstances get a
CFI_MFR_CONTINUATION repeatedly, making the loop go
over all banks and eventually hit the end of the
map and crash because of an access violation:
Unable to handle kernel paging request at virtual address c4980000
pgd = (ptrval)
[c4980000] *pgd=03808811, *pte=00000000, *ppte=00000000
Internal error: Oops: 7 [#1] PREEMPT ARM
CPU: 0 PID: 1 Comm: swapper Not tainted 4.16.0-rc1+ #150
Hardware name: Gemini (Device Tree)
PC is at jedec_probe_chip+0x6ec/0xcd0
LR is at 0x4
pc : [<c03a2bf4>] lr : [<00000004>] psr: 60000013
sp : c382dd18 ip : 0000ffff fp : 00000000
r10: c0626388 r9 : 00020000 r8 : c0626340
r7 : 00000000 r6 : 00000001 r5 : c3a71afc r4 : c382dd70
r3 : 00000001 r2 : c4900000 r1 : 00000002 r0 : 00080000
Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment none
Control: 0000397f Table: 00004000 DAC: 00000053
Process swapper (pid: 1, stack limit = 0x(ptrval))
Fix this by breaking the loop with a return 0 if
the offset exceeds the map size.
Fixes: 5c9c11e1c47c ("[MTD] [NOR] Add support for flash chips with ID in bank other than 0")
Cc: <stable@vger.kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
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get_sectorsize() was not using the appropriate macro to extract the
ECC sector size from the config cache, which led to buggy ECC when
using 1024 byte sectors.
Fixes: f88fc122cc34 ("mtd: nand: Cleanup/rework the atmel_nand driver")
Cc: <stable@vger.kernel.org>
Reported-by: Olivier Schonken <olivier.schonken@gmail.com>
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Reviewed-by: Richard Weinberger <richard@nod.at>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Tested-by: Olivier Schonken <olivier.schonken@gmail.com>
|
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My recent change to netvsc drive in how receive flags are handled
broke multicast. The Hyper-v/Azure virtual interface there is not a
multicast filter list, filtering is only all or none. The driver must
enable all multicast if any multicast address is present.
Fixes: 009f766ca238 ("hv_netvsc: filter multicast/broadcast")
Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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lan78xx_deferred_multicast_write)
Description:
Crash was reported with syzkaller pointing to lan78xx_write_reg routine.
Root-cause:
Proper cleanup of workqueues and init/setup routines was not happening
in failure conditions.
Fix:
Handled the error conditions by cleaning up the queues and init/setup
routines.
Fixes: 55d7de9de6c3 ("Microchip's LAN7800 family USB 2/3 to 10/100/1000 Ethernet device driver")
Reported-by: Andrey Konovalov <andreyknvl@google.com>
Signed-off-by: Raghuram Chary J <raghuramchary.jallipalli@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
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This is a cosmetic patch that deals with the address filter structure's
ambiguous fields 'filter' and 'range'. The former stands to mean that the
filter's *action* should be to filter the traces to its address range if
it's set or stop tracing if it's unset. This is confusing and hard on the
eyes, so this patch replaces it with 'action' enum. The 'range' field is
completely redundant (meaning that the filter is an address range as
opposed to a single address trigger), as we can use zero size to mean the
same thing.
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Acked-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vince Weaver <vincent.weaver@maine.edu>
Cc: Will Deacon <will.deacon@arm.com>
Link: http://lkml.kernel.org/r/20180329120648.11902-1-alexander.shishkin@linux.intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Conflicts:
kernel/events/hw_breakpoint.c
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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git://people.freedesktop.org/~airlied/linux
Pull drm fixes from Dave Airlie:
"Nothing serious, two amdkfd and two tegra fixes"
* tag 'drm-fixes-for-v4.16-rc8' of git://people.freedesktop.org/~airlied/linux:
drm/tegra: dc: Using NULL instead of plain integer
drm/amdkfd: Deallocate SDMA queues correctly
drm/amdkfd: Fix scratch memory with HWS enabled
drm/tegra: dc: Use correct format array for Tegra124
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git://anongit.freedesktop.org/tegra/linux into drm-fixes
drm/tegra: Fixes for v4.16
This contains two small fixes, one which fixes a typo that causes a
crash with the new framebuffer modifier query support and another that
fixes a build warning.
* tag 'drm/tegra/for-4.16-fixes' of git://anongit.freedesktop.org/tegra/linux:
drm/tegra: dc: Using NULL instead of plain integer
drm/tegra: dc: Use correct format array for Tegra124
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git://anongit.freedesktop.org/drm/drm-misc into drm-next
- Mask mode type garbage from userspace (Ville)
Something went wrong on the misc tree side, but I'll pull the patch directly.
* 'drm-misc-next-fixes' of git://anongit.freedesktop.org/drm/drm-misc:
drm: Fix uabi regression by allowing garbage mode->type from userspace
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There are several places in the ucma ABI where userspace can pass in a
sockaddr but set the address family to AF_IB. When that happens,
rdma_addr_size() will return a size bigger than sizeof struct sockaddr_in6,
and the ucma kernel code might end up copying past the end of a buffer
not sized for a struct sockaddr_ib.
Fix this by introducing new variants
int rdma_addr_size_in6(struct sockaddr_in6 *addr);
int rdma_addr_size_kss(struct __kernel_sockaddr_storage *addr);
that are type-safe for the types used in the ucma ABI and return 0 if the
size computed is bigger than the size of the type passed in. We can use
these new variants to check what size userspace has passed in before
copying any addresses.
Reported-by: <syzbot+6800425d54ed3ed8135d@syzkaller.appspotmail.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
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Fixes the following sparse warnings:
drivers/gpu/drm/tegra/dc.c:2181:69: warning:
Using plain integer as NULL pointer
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
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git://people.freedesktop.org/~gabbayo/linux into drm-next
- GPUVM support for dGPUs
- KFD events support for dGPUs
- Fix live-lock situation when restoring multiple evicted processes
- Fix VM page table allocation on large-bar systems
- Fix for build failure on frv architecture
* tag 'drm-amdkfd-next-2018-03-27' of git://people.freedesktop.org/~gabbayo/linux:
drm/amdkfd: Use ordered workqueue to restore processes
drm/amdgpu: Fix acquiring VM on large-BAR systems
drm/amdkfd: Add module option for testing large-BAR functionality
drm/amdkfd: Kmap event page for dGPUs
drm/amdkfd: Add ioctls for GPUVM memory management
drm/amdkfd: Add TC flush on VMID deallocation for Hawaii
drm/amdkfd: Allocate CWSR trap handler memory for dGPUs
drm/amdkfd: Add per-process IDR for buffer handles
drm/amdkfd: Aperture setup for dGPUs
drm/amdkfd: Remove limit on number of GPUs
drm/amdkfd: Populate DRM render device minor
drm/amdkfd: Create KFD VMs on demand
drm/amdgpu: Add kfd2kgd interface to acquire an existing VM
drm/amdgpu: Add helper to turn an existing VM into a compute VM
drm/amdgpu: Fix initial validation of PD BO for KFD VMs
drm/amdgpu: Move KFD-specific fields into struct amdgpu_vm
drm/amdkfd: fix uninitialized variable use
drm/amdkfd: add missing include of mm.h
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git://anongit.freedesktop.org/drm/drm-intel into drm-next
- Display fixes for booting with MST hub lid closed and display
freezing after hibernation (fd.o bugs 105470 & 105196)
- Fix for a very rare interrupt handling race resulting in GPU hang
* tag 'drm-intel-next-fixes-2018-03-27' of git://anongit.freedesktop.org/drm/drm-intel:
drm/i915: Fix hibernation with ACPI S0 target state
drm/i915/execlists: Use a locked clear_bit() for synchronisation with interrupt
drm/i915: Specify which engines to reset following semaphore/event lockups
drm/i915/dp: Write to SET_POWER dpcd to enable MST hub.
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Linux 4.16-rc7
This was requested by Daniel, and things were getting
a bit hard to reconcile, most of the conflicts were
trivial though.
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git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"Two driver fixes (ibmvfc, iscsi_tcp) and a USB fix for devices that
give the wrong return to Read Capacity and cause a huge log spew.
The remaining five patches all try to fix commit 84676c1f21e8
("genirq/affinity: assign vectors to all possible CPUs") which broke
the non-mq I/O path"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: iscsi_tcp: set BDI_CAP_STABLE_WRITES when data digest enabled
scsi: sd: Remember that READ CAPACITY(16) succeeded
scsi: ibmvfc: Avoid unnecessary port relogin
scsi: virtio_scsi: unify scsi_host_template
scsi: virtio_scsi: fix IO hang caused by automatic irq vector affinity
scsi: core: introduce force_blk_mq
scsi: megaraid_sas: fix selection of reply queue
scsi: hpsa: fix selection of reply queue
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The current for-loop zeros variable i and only loops once, hence
not all the buffers are free'd. Fix this by setting i correctly.
Detected by CoverityScan, CID#1463415 ("Operands don't affect result")
Fixes: a5073d6054f7 ("RDMA/hns: Add eq support of hip08")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Yixian Liu <liuyixian@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
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Ensure that device exists prior to accessing its properties.
Reported-by: <syzbot+71655d44855ac3e76366@syzkaller.appspotmail.com>
Fixes: 75216638572f ("RDMA/cma: Export rdma cm interface to userspace")
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
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Add missing check that device is connected prior to access it.
[ 55.358652] BUG: KASAN: null-ptr-deref in rdma_init_qp_attr+0x4a/0x2c0
[ 55.359389] Read of size 8 at addr 00000000000000b0 by task qp/618
[ 55.360255]
[ 55.360432] CPU: 1 PID: 618 Comm: qp Not tainted 4.16.0-rc1-00071-gcaf61b1b8b88 #91
[ 55.361693] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.11.0-0-g63451fca13-prebuilt.qemu-project.org 04/01/2014
[ 55.363264] Call Trace:
[ 55.363833] dump_stack+0x5c/0x77
[ 55.364215] kasan_report+0x163/0x380
[ 55.364610] ? rdma_init_qp_attr+0x4a/0x2c0
[ 55.365238] rdma_init_qp_attr+0x4a/0x2c0
[ 55.366410] ucma_init_qp_attr+0x111/0x200
[ 55.366846] ? ucma_notify+0xf0/0xf0
[ 55.367405] ? _get_random_bytes+0xea/0x1b0
[ 55.367846] ? urandom_read+0x2f0/0x2f0
[ 55.368436] ? kmem_cache_alloc_trace+0xd2/0x1e0
[ 55.369104] ? refcount_inc_not_zero+0x9/0x60
[ 55.369583] ? refcount_inc+0x5/0x30
[ 55.370155] ? rdma_create_id+0x215/0x240
[ 55.370937] ? _copy_to_user+0x4f/0x60
[ 55.371620] ? mem_cgroup_commit_charge+0x1f5/0x290
[ 55.372127] ? _copy_from_user+0x5e/0x90
[ 55.372720] ucma_write+0x174/0x1f0
[ 55.373090] ? ucma_close_id+0x40/0x40
[ 55.373805] ? __lru_cache_add+0xa8/0xd0
[ 55.374403] __vfs_write+0xc4/0x350
[ 55.374774] ? kernel_read+0xa0/0xa0
[ 55.375173] ? fsnotify+0x899/0x8f0
[ 55.375544] ? fsnotify_unmount_inodes+0x170/0x170
[ 55.376689] ? __fsnotify_update_child_dentry_flags+0x30/0x30
[ 55.377522] ? handle_mm_fault+0x174/0x320
[ 55.378169] vfs_write+0xf7/0x280
[ 55.378864] SyS_write+0xa1/0x120
[ 55.379270] ? SyS_read+0x120/0x120
[ 55.379643] ? mm_fault_error+0x180/0x180
[ 55.380071] ? task_work_run+0x7d/0xd0
[ 55.380910] ? __task_pid_nr_ns+0x120/0x140
[ 55.381366] ? SyS_read+0x120/0x120
[ 55.381739] do_syscall_64+0xeb/0x250
[ 55.382143] entry_SYSCALL_64_after_hwframe+0x21/0x86
[ 55.382841] RIP: 0033:0x7fc2ef803e99
[ 55.383227] RSP: 002b:00007fffcc5f3be8 EFLAGS: 00000217 ORIG_RAX: 0000000000000001
[ 55.384173] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fc2ef803e99
[ 55.386145] RDX: 0000000000000057 RSI: 0000000020000080 RDI: 0000000000000003
[ 55.388418] RBP: 00007fffcc5f3c00 R08: 0000000000000000 R09: 0000000000000000
[ 55.390542] R10: 0000000000000000 R11: 0000000000000217 R12: 0000000000400480
[ 55.392916] R13: 00007fffcc5f3cf0 R14: 0000000000000000 R15: 0000000000000000
[ 55.521088] Code: e5 4d 1e ff 48 89 df 44 0f b6 b3 b8 01 00 00 e8 65 50 1e ff 4c 8b 2b 49
8d bd b0 00 00 00 e8 56 50 1e ff 41 0f b6 c6 48 c1 e0 04 <49> 03 85 b0 00 00 00 48 8d 78 08
48 89 04 24 e8 3a 4f 1e ff 48
[ 55.525980] RIP: rdma_init_qp_attr+0x52/0x2c0 RSP: ffff8801e2c2f9d8
[ 55.532648] CR2: 00000000000000b0
[ 55.534396] ---[ end trace 70cee64090251c0b ]---
Fixes: 75216638572f ("RDMA/cma: Export rdma cm interface to userspace")
Fixes: d541e45500bd ("IB/core: Convert ah_attr from OPA to IB when copying to user")
Reported-by: <syzbot+7b62c837c2516f8f38c8@syzkaller.appspotmail.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
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