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The mlxsw driver relies on NETDEV_CHANGEUPPER events to configure the
device in case a port is enslaved to a master netdev such as bridge or
bond.
Since the driver ignores events unrelated to its ports and their
uppers, it's possible to engineer situations in which the device's data
path differs from the kernel's.
One example to such a situation is when a port is enslaved to a bond
that is already enslaved to a bridge. When the bond was enslaved the
driver ignored the event - as the bond wasn't one of its uppers - and
therefore a bridge port instance isn't created in the device.
Until such configurations are supported forbid them by checking that the
upper device doesn't have uppers of its own.
Fixes: 0d65fc13042f ("mlxsw: spectrum: Implement LAG port join/leave")
Signed-off-by: Ido Schimmel <[email protected]>
Reported-by: Nogah Frankel <[email protected]>
Tested-by: Nogah Frankel <[email protected]>
Signed-off-by: Jiri Pirko <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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From Boris:
"
This pull request contains the following core changes:
* Fix memory leaks in the core
* Remove unused NAND locking support
* Rename nand.h into rawnand.h (preparing support for spi NANDs)
* Use NAND_MAX_ID_LEN where appropriate
* Fix support for 20nm Hynix chips
* Fix support for Samsung and Hynix SLC NANDs
and the following driver changes:
* Various cleanup, improvements and fixes in the qcom driver
* Fixes for bugs detected by various static code analysis tools
* Fix mxc ooblayout definition
* Add a new part_parsers to tmio and sharpsl platform data in order to
define a custom list of partition parsers
* Request the reset line in exclusive mode in the sunxi driver
* Fix a build error in the orion-nand driver when compiled for ARMv4
* Allow 64-bit mvebu platforms to select the PXA3XX driver
"
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From Cyrille:
"
This pull request contains the following notable changes:
- add support to the JEDEC JESD216B specification (SFDP tables).
- add support to the Intel Denverton SPI flash controller.
- fix error recovery for Spansion/Cypress SPI NOR memories.
- fix 4-byte address management for the Aspeed SPI controller.
- add support to some Microchip SST26 memory parts
- remove unneeded pinctrl header
"
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DMA_MEMORY_IO was never used in the tree, so remove it. That means there is
no need for the DMA_MEMORY_MAP flag either now, so remove it as well and
change dma_declare_coherent_memory to return a normal errno value.
Signed-off-by: Christoph Hellwig <[email protected]>
Reviewed-by: Marek Szyprowski <[email protected]>
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'arm/mediatek', 'arm/tegra', 'arm/qcom', 'arm/smmu', 'ppc/pamu', 'x86/vt-d', 'x86/amd', 's390' and 'core' into next
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This flag was never implemented or used.
Signed-off-by: Christoph Hellwig <[email protected]>
Reviewed-by: Robin Murphy <[email protected]>
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Pull block fixes from Jens Axboe:
"Unfortunately a few issues that warrant sending another pull request,
even if I had hoped to avoid it. This contains:
- A fix for multiqueue xen-blkback, on tear down / disconnect.
- A few fixups for NVMe, including a wrong bit definition, fix for
host memory buffers, and an nvme rdma page size fix"
* 'for-linus' of git://git.kernel.dk/linux-block:
nvme: fix the definition of the doorbell buffer config support bit
nvme-pci: use dma memory for the host memory buffer descriptors
nvme-rdma: default MR page size to 4k
xen-blkback: stop blkback thread of every queue in xen_blkif_disconnect
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git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
Pull device mapper fixes from Mike Snitzer:
- A couple fixes for bugs introduced as part of the blk_status_t block
layer changes during the 4.13 merge window
- A printk throttling fix to use discrete rate limiting state for each
DM log level
- A stable@ fix for DM multipath that delays request requeueing to
avoid CPU lockup if/when the request queue is "dying"
* tag 'for-4.13/dm-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
dm mpath: do not lock up a CPU with requeuing activity
dm: fix printk() rate limiting code
dm mpath: retry BLK_STS_RESOURCE errors
dm: fix the second dec_pending() argument in __split_and_process_bio()
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This patch exposes clk_gate_ops::is_enabled as functions
that can be directly called and assigned in places like this so
we don't need wrapper functions that do nothing besides forward
the call.
Signed-off-by: Gabriel Fernandez <[email protected]>
Suggested-by: Stephen Boyd <[email protected]>
Signed-off-by: Stephen Boyd <[email protected]>
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Merge more fixes from Andrew Morton:
"6 fixes"
* emailed patches from Andrew Morton <[email protected]>:
scripts/dtc: fix '%zx' warning
include/linux/compiler.h: don't perform compiletime_assert with -O0
mm, madvise: ensure poisoned pages are removed from per-cpu lists
mm, uprobes: fix multiple free of ->uprobes_state.xol_area
kernel/kthread.c: kthread_worker: don't hog the cpu
mm,page_alloc: don't call __node_reclaim() with oom_lock held.
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Commit c7acec713d14 ("kernel.h: handle pointers to arrays better in
container_of()") made use of __compiletime_assert() from container_of()
thus increasing the usage of this macro, allowing developers to notice
type conflicts in usage of container_of() at compile time.
However, the implementation of __compiletime_assert relies on compiler
optimizations to report an error. This means that if a developer uses
"-O0" with any code that performs container_of(), the compiler will always
report an error regardless of whether there is an actual problem in the
code.
This patch disables compile_time_assert when optimizations are disabled to
allow such code to compile with CFLAGS="-O0".
Example compilation failure:
./include/linux/compiler.h:547:38: error: call to `__compiletime_assert_94' declared with attribute error: pointer type mismatch in container_of()
_compiletime_assert(condition, msg, __compiletime_assert_, __LINE__)
^
./include/linux/compiler.h:530:4: note: in definition of macro `__compiletime_assert'
prefix ## suffix(); \
^~~~~~
./include/linux/compiler.h:547:2: note: in expansion of macro `_compiletime_assert'
_compiletime_assert(condition, msg, __compiletime_assert_, __LINE__)
^~~~~~~~~~~~~~~~~~~
./include/linux/build_bug.h:46:37: note: in expansion of macro `compiletime_assert'
#define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
^~~~~~~~~~~~~~~~~~
./include/linux/kernel.h:860:2: note: in expansion of macro `BUILD_BUG_ON_MSG'
BUILD_BUG_ON_MSG(!__same_type(*(ptr), ((type *)0)->member) && \
^~~~~~~~~~~~~~~~
[[email protected]: use do{}while(0), per Michal]
Link: http://lkml.kernel.org/r/[email protected]
Fixes: c7acec713d14c6c ("kernel.h: handle pointers to arrays better in container_of()")
Signed-off-by: Joe Stringer <[email protected]>
Cc: Ian Abbott <[email protected]>
Cc: Arnd Bergmann <[email protected]>
Cc: Michal Nazarewicz <[email protected]>
Cc: Kees Cook <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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The invalidate_page callback suffered from two pitfalls. First it used
to happen after the page table lock was release and thus a new page
might have setup before the call to invalidate_page() happened.
This is in a weird way fixed by commit c7ab0d2fdc84 ("mm: convert
try_to_unmap_one() to use page_vma_mapped_walk()") that moved the
callback under the page table lock but this also broke several existing
users of the mmu_notifier API that assumed they could sleep inside this
callback.
The second pitfall was invalidate_page() being the only callback not
taking a range of address in respect to invalidation but was giving an
address and a page. Lots of the callback implementers assumed this
could never be THP and thus failed to invalidate the appropriate range
for THP.
By killing this callback we unify the mmu_notifier callback API to
always take a virtual address range as input.
Finally this also simplifies the end user life as there is now two clear
choices:
- invalidate_range_start()/end() callback (which allow you to sleep)
- invalidate_range() where you can not sleep but happen right after
page table update under page table lock
Signed-off-by: Jérôme Glisse <[email protected]>
Cc: Bernhard Held <[email protected]>
Cc: Adam Borowski <[email protected]>
Cc: Andrea Arcangeli <[email protected]>
Cc: Radim Krčmář <[email protected]>
Cc: Wanpeng Li <[email protected]>
Cc: Paolo Bonzini <[email protected]>
Cc: Takashi Iwai <[email protected]>
Cc: Nadav Amit <[email protected]>
Cc: Mike Galbraith <[email protected]>
Cc: Kirill A. Shutemov <[email protected]>
Cc: axie <[email protected]>
Cc: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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Replace all mmu_notifier_invalidate_page() calls by *_invalidate_range()
and make sure it is bracketed by calls to *_invalidate_range_start()/end().
Note that because we can not presume the pmd value or pte value we have
to assume the worst and unconditionaly report an invalidation as
happening.
Signed-off-by: Jérôme Glisse <[email protected]>
Cc: Dan Williams <[email protected]>
Cc: Ross Zwisler <[email protected]>
Cc: Bernhard Held <[email protected]>
Cc: Adam Borowski <[email protected]>
Cc: Andrea Arcangeli <[email protected]>
Cc: Radim Krčmář <[email protected]>
Cc: Wanpeng Li <[email protected]>
Cc: Paolo Bonzini <[email protected]>
Cc: Takashi Iwai <[email protected]>
Cc: Nadav Amit <[email protected]>
Cc: Mike Galbraith <[email protected]>
Cc: Kirill A. Shutemov <[email protected]>
Cc: axie <[email protected]>
Cc: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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mmio_flush_range() suffers from a lack of clearly-defined semantics,
and is somewhat ambiguous to port to other architectures where the
scope of the writeback implied by "flush" and ordering might matter,
but MMIO would tend to imply non-cacheable anyway. Per the rationale
in 67a3e8fe9015 ("nd_blk: change aperture mapping from WC to WB"), the
only existing use is actually to invalidate clean cache lines for
ARCH_MEMREMAP_PMEM type mappings *without* writeback. Since the recent
cleanup of the pmem API, that also now happens to be the exact purpose
of arch_invalidate_pmem(), which would be a far more well-defined tool
for the job.
Rather than risk potentially inconsistent implementations of
mmio_flush_range() for the sake of one callsite, streamline things by
removing it entirely and instead move the ARCH_MEMREMAP_PMEM related
definitions up to the libnvdimm level, so they can be shared by NFIT
as well. This allows NFIT to be enabled for arm64.
Signed-off-by: Robin Murphy <[email protected]>
Signed-off-by: Dan Williams <[email protected]>
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Currently, when a module event is enabled, when that module is removed, it
clears all ring buffers. This is to prevent another module from being loaded
and having one of its trace event IDs from reusing a trace event ID of the
removed module. This could cause undesirable effects as the trace event of
the new module would be using its own processing algorithms to process raw
data of another event. To prevent this, when a module is loaded, if any of
its events have been used (signified by the WAS_ENABLED event call flag,
which is never cleared), all ring buffers are cleared, just in case any one
of them contains event data of the removed event.
The problem is, there's no reason to clear all ring buffers if only one (or
less than all of them) uses one of the events. Instead, only clear the ring
buffers that recorded the events of a module that is being removed.
To do this, instead of keeping the WAS_ENABLED flag with the trace event
call, move it to the per instance (per ring buffer) event file descriptor.
The event file descriptor maps each event to a separate ring buffer
instance. Then when the module is removed, only the ring buffers that
activated one of the module's events get cleared. The rest are not touched.
Signed-off-by: Steven Rostedt (VMware) <[email protected]>
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copy_in_user() copies data from user-space address @from to user-
space address @to. Hence declare both @from and @to as user-space
pointers.
Fixes: commit d597580d3737 ("generic ...copy_..._user primitives")
Signed-off-by: Bart Van Assche <[email protected]>
Cc: <[email protected]>
Signed-off-by: Al Viro <[email protected]>
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[AV: added missing annotations in syscalls.h/compat.h]
Signed-off-by: Christoph Hellwig <[email protected]>
Signed-off-by: Al Viro <[email protected]>
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Signed-off-by: Al Viro <[email protected]>
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stack_tracer_disable()/stack_tracer_enable() had been using the wrong
name for the config symbol to enable their preempt-debugging checks --
fix with a word swap.
Link: http://lkml.kernel.org/r/[email protected]
Cc: [email protected]
Fixes: 8aaf1ee70e ("tracing: Rename trace_active to disable_stack_tracer and inline its modification")
Signed-off-by: Zev Weiss <[email protected]>
Signed-off-by: Steven Rostedt (VMware) <[email protected]>
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This patch fixes two trivial typos in net_device_ops documentation,
related to ndo_xdp_flush callback.
Signed-off-by: Rami Rosen <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/core
Pull irqchip updates for 4.14 from Marc Zyngier:
- irqchip-specific part of the monster GICv4 series
- new UniPhier AIDET irqchip driver
- new variants of some Freescale MSI widget
- blanket removal of of_node->full_name in printk
- random collection of fixes
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This patch has changes to w1.h/w1.c generic files to add (optional) hwmon
support structures.
Signed-off-by: Jaghathiswari Rankappagounder Natarajan <[email protected]>
Acked-by: Evgeniy Polyakov <[email protected]>
Acked-by: Guenter Roeck <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
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Move the USB phy NULL checking before issuing usb_phy_set_charger_current()
to avoid unchecked dereference warning.
Signed-off-by: Baolin Wang <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
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The kerneldoc comment for the genpool_algo_t typedef was incomplete and
incorrectly formatted, leading to a raft of warnings during the docs build.
Fix it appropriately.
Signed-off-by: Jonathan Corbet <[email protected]>
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Avoid a 32-bit time overflow in recently_deleted() since i_dtime
(inode deletion time) is stored only as a 32-bit value on disk.
Since i_dtime isn't used for much beyond a boolean value in e2fsck
and is otherwise only used in this function in the kernel, there is
no benefit to use more space in the inode for this field on disk.
Instead, compare only the relative deletion time with the low
32 bits of the time using the newly-added time_before32() helper,
which is similar to time_before() and time_after() for jiffies.
Increase RECENTCY_DIRTY to 300s based on Ted's comments about
usage experience at Google.
Signed-off-by: Andreas Dilger <[email protected]>
Signed-off-by: Theodore Ts'o <[email protected]>
Reviewed-by: Arnd Bergmann <[email protected]>
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As KVM needs to know about the availability of GICv4 to enable
direct injection of interrupts, let's advertise the feature in
the gic_kvm_info structure.
Signed-off-by: Marc Zyngier <[email protected]>
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Get the show on the road...
Reviewed-by: Thomas Gleixner <[email protected]>
Signed-off-by: Marc Zyngier <[email protected]>
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Add the required interfaces to map, unmap and update a VLPI.
Reviewed-by: Eric Auger <[email protected]>
Reviewed-by: Thomas Gleixner <[email protected]>
Signed-off-by: Marc Zyngier <[email protected]>
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Add the required interfaces to schedule a VPE and perform a
VINVALL command.
Reviewed-by: Thomas Gleixner <[email protected]>
Reviewed-by: Eric Auger <[email protected]>
Signed-off-by: Marc Zyngier <[email protected]>
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When creating a VM, it is very convenient to have an irq domain
containing all the doorbell interrupts associated with that VM
(each interrupt representing a VPE).
Reviewed-by: Thomas Gleixner <[email protected]>
Signed-off-by: Marc Zyngier <[email protected]>
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A long time ago, GITS_CTLR[1] used to be called GITC_CTLR.EnableVLPI.
It has been subsequently deprecated and is now an "Implementation
Defined" bit that may ot may not be set for GICv4. Brilliant.
And the current crop of the FastModel requires that bit for VLPIs
to be enabled. Oh well... Let's set it and find out what breaks.
Signed-off-by: Marc Zyngier <[email protected]>
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When we don't have the DirectLPI feature, we must work around the
architecture shortcomings to be able to perform the required
maintenance (interrupt masking, clearing and injection).
For this, we create a fake device whose sole purpose is to
provide a way to issue commands as if we were dealing with LPIs
coming from that device (while they actually originate from
the ITS). This fake device doesn't have LPIs allocated to it,
but instead uses the VPE LPIs.
Of course, this could be a real bottleneck, and a naive
implementation would require 6 commands to issue an invalidation.
Instead, let's allocate at least one event per physical CPU
(rounded up to the next power of 2), and opportunistically
map the VPE doorbell to an event. This doorbell will be mapped
until we roll over and need to reallocate this slot.
This ensures that most of the time, we only need 2 commands
to issue an INV, INT or CLEAR, making the performance a lot
better, given that we always issue a CLEAR on entry, and
an INV on each side of a trapped WFI.
Signed-off-by: Marc Zyngier <[email protected]>
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When a VPE is scheduled to run, the corresponding redistributor must
be told so, by setting VPROPBASER to the VM's property table, and
VPENDBASER to the vcpu's pending table.
When scheduled out, we preserve the IDAI and PendingLast bits. The
latter is specially important, as it tells the hypervisor that
there are pending interrupts for this vcpu.
Reviewed-by: Eric Auger <[email protected]>
Signed-off-by: Marc Zyngier <[email protected]>
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V{PEND,PROP}BASER being 64bit registers, they need some ad-hoc
accessors on 32bit, specially given that VPENDBASER contains
a Valid bit, making the access a bit convoluted.
Reviewed-by: Thomas Gleixner <[email protected]>
Reviewed-by: Eric Auger <[email protected]>
Signed-off-by: Marc Zyngier <[email protected]>
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Add the new GICv4 ITS command definitions, most of them, being
defined in terms of their physical counterparts.
Reviewed-by: Eric Auger <[email protected]>
Reviewed-by: Thomas Gleixner <[email protected]>
Signed-off-by: Marc Zyngier <[email protected]>
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Add a bunch of GICv4-specific data structures that will get used in
subsequent patches.
Reviewed-by: Thomas Gleixner <[email protected]>
Signed-off-by: Marc Zyngier <[email protected]>
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Signed-off-by: Ingo Molnar <[email protected]>
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In some scenarios, we should set some pins as input/output/pullup/pulldown
when the specified system goes into deep sleep mode, then when the system
goes into deep sleep mode, these pins will be set automatically by hardware.
That means some pins are not controlled by any specific driver in the OS, but
need to be controlled when entering sleep mode. Thus we introduce one sleep
state config into pinconf-generic for users to configure.
Signed-off-by: Baolin Wang <[email protected]>
Signed-off-by: Linus Walleij <[email protected]>
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Add TX offloads support for GRE tunneled packets by reporting the needed
netdev features.
Signed-off-by: Gal Pressman <[email protected]>
Reviewed-by: Or Gerlitz <[email protected]>
Signed-off-by: Saeed Mahameed <[email protected]>
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This patch adds more generic PHY modes to the phy_mode enum, to
allow configuring generic PHYs to the SGMII and/or the 10GKR mode
by using the set_mode callback.
Signed-off-by: Antoine Tenart <[email protected]>
Acked-by: Kishon Vijay Abraham I <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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The following new APIs are added:
int idr_alloc_ext(struct idr *idr, void *ptr, unsigned long *index,
unsigned long start, unsigned long end, gfp_t gfp);
void *idr_remove_ext(struct idr *idr, unsigned long id);
void *idr_find_ext(const struct idr *idr, unsigned long id);
void *idr_replace_ext(struct idr *idr, void *ptr, unsigned long id);
void *idr_get_next_ext(struct idr *idr, unsigned long *nextid);
Signed-off-by: Chris Mi <[email protected]>
Signed-off-by: Jiri Pirko <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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MLX5_INTERFACE_STATE_SHUTDOWN is not used in the code.
Fixes: 5fc7197d3a25 ("net/mlx5: Add pci shutdown callback")
Signed-off-by: Huy Nguyen <[email protected]>
Reviewed-by: Daniel Jurgens <[email protected]>
Signed-off-by: Saeed Mahameed <[email protected]>
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There is an issue where the firmware fails during mlx5_load_one,
the health_care timer detects the issue and schedules a health_care call.
Then the mlx5_load_one detects the issue, cleans up and quits. Then
the health_care starts and calls mlx5_unload_one to clean up the resources
that no longer exist and causes kernel panic.
The root cause is that the bit MLX5_INTERFACE_STATE_DOWN is not set
after mlx5_load_one fails. The solution is removing the bit
MLX5_INTERFACE_STATE_DOWN and quit mlx5_unload_one if the
bit MLX5_INTERFACE_STATE_UP is not set. The bit MLX5_INTERFACE_STATE_DOWN
is redundant and we can use MLX5_INTERFACE_STATE_UP instead.
Fixes: 5fc7197d3a25 ("net/mlx5: Add pci shutdown callback")
Signed-off-by: Huy Nguyen <[email protected]>
Reviewed-by: Daniel Jurgens <[email protected]>
Signed-off-by: Saeed Mahameed <[email protected]>
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This reverts commit 45f119bf936b1f9f546a0b139c5b56f9bb2bdc78.
Eric Dumazet says:
We found at Google a significant regression caused by
45f119bf936b1f9f546a0b139c5b56f9bb2bdc78 tcp: remove header prediction
In typical RPC (TCP_RR), when a TCP socket receives data, we now call
tcp_ack() while we used to not call it.
This touches enough cache lines to cause a slowdown.
so problem does not seem to be HP removal itself but the tcp_ack()
call. Therefore, it might be possible to remove HP after all, provided
one finds a way to elide tcp_ack for most cases.
Reported-by: Eric Dumazet <[email protected]>
Signed-off-by: Florian Westphal <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Add a helper that can replace the following common pattern:
if (blk_queue_dax(bdev->bd_queue))
fs_dax_get_by_host(bdev->bd_disk->disk_name);
This will be used to move dax_device lookup from iomap-operation time to
fs-mount time.
Reviewed-by: Jan Kara <[email protected]>
Reviewed-by: Christoph Hellwig <[email protected]>
Reviewed-by: Darrick J. Wong <[email protected]>
Signed-off-by: Dan Williams <[email protected]>
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With the current IOMMU-API the hardware TLBs have to be
flushed in every iommu_ops->unmap() call-back.
For unmapping large amounts of address space, like it
happens when a KVM domain with assigned devices is
destroyed, this causes thousands of unnecessary TLB flushes
in the IOMMU hardware because the unmap call-back runs for
every unmapped physical page.
With the TLB Flush Interface and the new iommu_unmap_fast()
function introduced here the need to clean the hardware TLBs
is removed from the unmapping code-path. Users of
iommu_unmap_fast() have to explicitly call the TLB-Flush
functions to sync the page-table changes to the hardware.
Three functions for TLB-Flushes are introduced:
* iommu_flush_tlb_all() - Flushes all TLB entries
associated with that
domain. TLBs entries are
flushed when this function
returns.
* iommu_tlb_range_add() - This will add a given
range to the flush queue
for this domain.
* iommu_tlb_sync() - Flushes all queued ranges from
the hardware TLBs. Returns when
the flush is finished.
The semantic of this interface is intentionally similar to
the iommu_gather_ops from the io-pgtable code.
Cc: Alex Williamson <[email protected]>
Cc: Will Deacon <[email protected]>
Cc: Robin Murphy <[email protected]>
Signed-off-by: Joerg Roedel <[email protected]>
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Register the 5V boost converter as a regulator named "usb_otg_vbus".
This commit also adds support for bq24190_platform_data, through which
non device-tree platforms can pass the regulator_init_data (containing
mappings for the consumer amongst other things).
Signed-off-by: Hans de Goede <[email protected]>
Acked-by: Tony Lindgren <[email protected]>
Signed-off-by: Sebastian Reichel <[email protected]>
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Pull NVMe fixes from Christoph:
"Three more fixes for 4.13 below:
- fix the incorrect bit for the doorbell buffer features (Changpeng Liu)
- always use a 4k MR page size for RDMA, to not get in trouble with
offset in non-4k page size systems (no-op for x86) (Max Gurtovoy)
- and a fix for the new nvme host memory buffer support to keep the
descriptor list DMA mapped when the buffer is enabled (me)"
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