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147,665 commits

Author SHA1 Message Date
David Howells
c078381856 rxrpc: Fix overproduction of wakeups to recvmsg()
Fix three cases of overproduction of wakeups:

 (1) rxrpc_input_split_jumbo() conditionally notifies the app that there's
     data for recvmsg() to collect if it queues some data - and then its
     only caller, rxrpc_input_data(), goes and wakes up recvmsg() anyway.

     Fix the rxrpc_input_data() to only do the wakeup in failure cases.

 (2) If a DATA packet is received for a call by the I/O thread whilst
     recvmsg() is busy draining the call's rx queue in the app thread, the
     call will left on the recvmsg() queue for recvmsg() to pick up, even
     though there isn't any data on it.

     This can cause an unexpected recvmsg() with a 0 return and no MSG_EOR
     set after the reply has been posted to a service call.

     Fix this by discarding pending calls from the recvmsg() queue that
     don't need servicing yet.

 (3) Not-yet-completed calls get requeued after having data read from them,
     even if they have no data to read.

     Fix this by only requeuing them if they have data waiting on them; if
     they don't, the I/O thread will requeue them when data arrives or they
     fail.

Signed-off-by: David Howells <dhowells@redhat.com>
cc: Marc Dionne <marc.dionne@auristor.com>
cc: linux-afs@lists.infradead.org
Link: https://lore.kernel.org/r/3386149.1676497685@warthog.procyon.org.uk
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2023-02-20 08:33:25 +01:00
Edward Srouji
66fb1d5df6 IB/mlx5: Extend debug control for CC parameters
This patch adds rtt_resp_dscp to the current debug controllability of
congestion control (CC) parameters.
rtt_resp_dscp can be read or written through debugfs.
If set, its value overwrites the DSCP of the generated RTT response.

Signed-off-by: Edward Srouji <edwards@nvidia.com>
Reviewed-by: Maor Gottlieb <maorg@nvidia.com>
Link: https://lore.kernel.org/r/1dcc3440ee53c688f19f579a051ded81a2aaa70a.1676538714.git.leon@kernel.org
Signed-off-by: Leon Romanovsky <leon@kernel.org>
2023-02-19 11:50:59 +02:00
Linus Torvalds
a33d946cbb A single fix for the PCI/MSI infrastructure:
The addition of the new alloc/free interfaces in this cycle forgot to
  add stub functions for pci_msix_alloc_irq_at() and pci_msix_free_irq()
  for the CONFIG_PCI_MSI=n case
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Merge tag 'irq-urgent-2023-02-19' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull irq fix from Thomas Gleixner:
 "A single build fix for the PCI/MSI infrastructure.

  The addition of the new alloc/free interfaces in this cycle forgot to
  add stub functions for pci_msix_alloc_irq_at() and pci_msix_free_irq()
  for the CONFIG_PCI_MSI=n case"

* tag 'irq-urgent-2023-02-19' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  PCI/MSI: Provide missing stubs for CONFIG_PCI_MSI=n
2023-02-18 17:38:18 -08:00
Thomas Gleixner
6f3ee0e22b irqchip updates for 6.3
- New and improved irqdomain locking, closing a number of races that
   became apparent now that we are able to probe drivers in parallel
 
 - A bunch of OF node refcounting bugs have been fixed
 
 - We now have a new IPI mux, lifted from the Apple AIC code and
   made common. It is expected that riscv will eventually benefit
   from it
 
 - Two small fixes for the Broadcom L2 drivers
 
 - Various cleanups and minor bug fixes
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Merge tag 'irqchip-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/core

Pull irqchip updates from Marc Zyngier:

   - New and improved irqdomain locking, closing a number of races that
     became apparent now that we are able to probe drivers in parallel

   - A bunch of OF node refcounting bugs have been fixed

   - We now have a new IPI mux, lifted from the Apple AIC code and
     made common. It is expected that riscv will eventually benefit
     from it

   - Two small fixes for the Broadcom L2 drivers

   - Various cleanups and minor bug fixes

Link: https://lore.kernel.org/r/20230218143452.3817627-1-maz@kernel.org
2023-02-19 00:07:56 +01:00
Ross Zwisler
2455f0e124 tracing: Always use canonical ftrace path
The canonical location for the tracefs filesystem is at /sys/kernel/tracing.

But, from Documentation/trace/ftrace.rst:

  Before 4.1, all ftrace tracing control files were within the debugfs
  file system, which is typically located at /sys/kernel/debug/tracing.
  For backward compatibility, when mounting the debugfs file system,
  the tracefs file system will be automatically mounted at:

  /sys/kernel/debug/tracing

Many comments and Kconfig help messages in the tracing code still refer
to this older debugfs path, so let's update them to avoid confusion.

Link: https://lore.kernel.org/linux-trace-kernel/20230215223350.2658616-2-zwisler@google.com

Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Reviewed-by: Mukesh Ojha <quic_mojha@quicinc.com>
Signed-off-by: Ross Zwisler <zwisler@google.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
2023-02-18 14:34:09 -05:00
Linus Torvalds
0c2822b116 arm64 regression fix for 6.2
- Fix 'perf' regression for non-standard CPU PMU hardware (i.e. Apple M1)
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 regression fix from Will Deacon:
 "Apologies for the _extremely_ late pull request here, but we had a
  'perf' (i.e. CPU PMU) regression on the Apple M1 reported on Wednesday
  [1] which was introduced by bd27568117 ("perf: Rewrite core context
  handling") during the merge window.

  Mark and I looked into this and noticed an additional problem caused
  by the same patch, where the 'CHAIN' event (used to combine two
  adjacent 32-bit counters into a single 64-bit counter) was not being
  filtered correctly. Mark posted a series on Thursday [2] which
  addresses both of these regressions and I queued it the same day.

  The changes are small, self-contained and have been confirmed to fix
  the original regression.

  Summary:

   - Fix 'perf' regression for non-standard CPU PMU hardware (i.e. Apple
     M1)"

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64: perf: reject CHAIN events at creation time
  arm_pmu: fix event CPU filtering
2023-02-18 10:10:49 -08:00
Joerg Roedel
bedd29d793 Merge branches 'apple/dart', 'arm/exynos', 'arm/renesas', 'arm/smmu', 'x86/vt-d', 'x86/amd' and 'core' into next 2023-02-18 15:43:04 +01:00
Linus Torvalds
38f8ccde04 Six hotfixes. Five are cc:stable: four for MM, one for nilfs2. Also a
MAINTAINERS update.
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Merge tag 'mm-hotfixes-stable-2023-02-17-15-16-2' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull misc fixes from Andrew Morton:
 "Six hotfixes. Five are cc:stable: four for MM, one for nilfs2.

  Also a MAINTAINERS update"

* tag 'mm-hotfixes-stable-2023-02-17-15-16-2' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
  nilfs2: fix underflow in second superblock position calculations
  hugetlb: check for undefined shift on 32 bit architectures
  mm/migrate: fix wrongly apply write bit after mkdirty on sparc64
  MAINTAINERS: update FPU EMULATOR web page
  mm/MADV_COLLAPSE: set EAGAIN on unexpected page refcount
  mm/filemap: fix page end in filemap_get_read_batch
2023-02-17 17:51:40 -08:00
Mike Kravetz
ec4288fe63 hugetlb: check for undefined shift on 32 bit architectures
Users can specify the hugetlb page size in the mmap, shmget and
memfd_create system calls.  This is done by using 6 bits within the flags
argument to encode the base-2 logarithm of the desired page size.  The
routine hstate_sizelog() uses the log2 value to find the corresponding
hugetlb hstate structure.  Converting the log2 value (page_size_log) to
potential hugetlb page size is the simple statement:

	1UL << page_size_log

Because only 6 bits are used for page_size_log, the left shift can not be
greater than 63.  This is fine on 64 bit architectures where a long is 64
bits.  However, if a value greater than 31 is passed on a 32 bit
architecture (where long is 32 bits) the shift will result in undefined
behavior.  This was generally not an issue as the result of the undefined
shift had to exactly match hugetlb page size to proceed.

Recent improvements in runtime checking have resulted in this undefined
behavior throwing errors such as reported below.

Fix by comparing page_size_log to BITS_PER_LONG before doing shift.

Link: https://lkml.kernel.org/r/20230216013542.138708-1-mike.kravetz@oracle.com
Link: https://lore.kernel.org/lkml/CA+G9fYuei_Tr-vN9GS7SfFyU1y9hNysnf=PB7kT0=yv4MiPgVg@mail.gmail.com/
Fixes: 42d7395feb ("mm: support more pagesizes for MAP_HUGETLB/SHM_HUGETLB")
Signed-off-by: Mike Kravetz <mike.kravetz@oracle.com>
Reported-by: Naresh Kamboju <naresh.kamboju@linaro.org>
Reviewed-by: Jesper Juhl <jesperjuhl76@gmail.com>
Acked-by: Muchun Song <songmuchun@bytedance.com>
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Tested-by: Naresh Kamboju <naresh.kamboju@linaro.org>
Cc: Anders Roxell <anders.roxell@linaro.org>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Sasha Levin <sashal@kernel.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2023-02-17 15:07:05 -08:00
Rob Herring
9cbad37ce8 of: Add of_property_present() helper
Add an of_property_present() function similar to
fwnode_property_present(). of_property_read_bool() could be used
directly, but it is cleaner to not use it on non-boolean properties.

Reviewed-by: Frank Rowand <frowand.list@gmail.com>
Tested-by: Frank Rowand <frowand.list@gmail.com>
Link: https://lore.kernel.org/all/20230215215547.691573-1-robh@kernel.org/
Signed-off-by: Rob Herring <robh@kernel.org>
2023-02-17 15:21:36 -06:00
Martin KaFai Lau
31de4105f0 bpf: Add BPF_FIB_LOOKUP_SKIP_NEIGH for bpf_fib_lookup
The bpf_fib_lookup() also looks up the neigh table.
This was done before bpf_redirect_neigh() was added.

In the use case that does not manage the neigh table
and requires bpf_fib_lookup() to lookup a fib to
decide if it needs to redirect or not, the bpf prog can
depend only on using bpf_redirect_neigh() to lookup the
neigh. It also keeps the neigh entries fresh and connected.

This patch adds a bpf_fib_lookup flag, SKIP_NEIGH, to avoid
the double neigh lookup when the bpf prog always call
bpf_redirect_neigh() to do the neigh lookup. The params->smac
output is skipped together when SKIP_NEIGH is set because
bpf_redirect_neigh() will figure out the smac also.

Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20230217205515.3583372-1-martin.lau@linux.dev
2023-02-17 22:12:04 +01:00
Christophe JAILLET
d88cbbb39b blk-mq: Reorder fields in 'struct blk_mq_tag_set'
Group some variables based on their sizes to reduce hole and avoid padding.
On x86_64, this shrinks the size of 'struct blk_mq_tag_set'
from 304 to 296 bytes.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/6f249f9b02a3490283ef0278096556de41aa0cf0.1676626130.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2023-02-17 13:37:22 -07:00
Jason Gunthorpe
5ef17179da Merge mlx5-next into rdma.git for-next
Synchronize the shared mlx5 branch with net:
 - From Jiri: fixe a deadlock in mlx5_ib's netdev notifier unregister.
 - From Mark and Patrisious: add IPsec RoCEv2 support.
 - From Or: Rely on firmware to get special mkeys

* branch mlx5-next:
  RDMA/mlx5: Use query_special_contexts for mkeys
  net/mlx5e: Use query_special_contexts for mkeys
  net/mlx5: Change define name for 0x100 lkey value
  net/mlx5: Expose bits for querying special mkeys
  net/mlx5: Configure IPsec steering for egress RoCEv2 traffic
  net/mlx5: Configure IPsec steering for ingress RoCEv2 traffic
  net/mlx5: Add IPSec priorities in RDMA namespaces
  net/mlx5: Implement new destination type TABLE_TYPE
  net/mlx5: Introduce new destination type TABLE_TYPE
  RDMA/mlx5: Track netdev to avoid deadlock during netdev notifier unregister
  net/mlx5e: Propagate an internal event in case uplink netdev changes
  net/mlx5e: Fix trap event handling

Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2023-02-17 16:24:14 -04:00
Or Har-Toov
a419bfb763 net/mlx5: Change define name for 0x100 lkey value
Change define of 0x100 lkey value from MLX5_INVALID_LKEY to be
MLX5_TERMINATE_SCATTER_LIST_LKEY as 0x100 is the value of
terminate_scatter_list_mkey.

Link: https://lore.kernel.org/r/3a116dc3fbae4cb6b76a63d27d418830b06ade0c.1673960981.git.leon@kernel.org
Signed-off-by: Or Har-Toov <ohartoov@nvidia.com>
Reviewed-by: Michael Guralnik <michaelgur@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2023-02-17 16:22:22 -04:00
Or Har-Toov
4b7296aa6c net/mlx5: Expose bits for querying special mkeys
Add needed HW bits to query the values of all special mkeys.

Link: https://lore.kernel.org/r/080ebb563a9717c15b1ea75d669aede676df386b.1673960981.git.leon@kernel.org
Signed-off-by: Or Har-Toov <ohartoov@nvidia.com>
Reviewed-by: Michael Guralnik <michaelgur@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2023-02-17 16:22:22 -04:00
Luca Boccassi
9ec041ea40 sed-opal: add support flag for SUM in status ioctl
Not every OPAL drive supports SUM (Single User Mode), so report this
information to userspace via the get-status ioctl so that we can adjust
the formatting options accordingly.
Tested on a kingston drive (which supports it) and a samsung one
(which does not).

Signed-off-by: Luca Boccassi <bluca@debian.org>
Link: https://lore.kernel.org/r/20230210010612.28729-1-luca.boccassi@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2023-02-17 06:15:53 -07:00
Florian Westphal
2954fe60e3 netfilter: let reset rules clean out conntrack entries
iptables/nftables support responding to tcp packets with tcp resets.

The generated tcp reset packet passes through both output and postrouting
netfilter hooks, but conntrack will never see them because the generated
skb has its ->nfct pointer copied over from the packet that triggered the
reset rule.

If the reset rule is used for established connections, this
may result in the conntrack entry to be around for a very long
time (default timeout is 5 days).

One way to avoid this would be to not copy the nf_conn pointer
so that the rest packet passes through conntrack too.

Problem is that output rules might not have the same conntrack
zone setup as the prerouting ones, so its possible that the
reset skb won't find the correct entry.  Generating a template
entry for the skb seems error prone as well.

Add an explicit "closing" function that switches a confirmed
conntrack entry to closed state and wire this up for tcp.

If the entry isn't confirmed, no action is needed because
the conntrack entry will never be committed to the table.

Reported-by: Russel King <linux@armlinux.org.uk>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2023-02-17 13:04:56 +01:00
David S. Miller
675f176b4d Merge ra.kernel.org:/pub/scm/linux/kernel/git/netdev/net
Some of the devlink bits were tricky, but I think I got it right.

Signed-off-by: David S. Miller <davem@davemloft.net>
2023-02-17 11:06:39 +00:00
Simon Ser
158350aae1 drm: document DRM_IOCTL_GEM_CLOSE
This is a bit tricky, because of the ref'counting considerations.
See also [1] for more discussion about this topic. Since this is
kernel docs, I've decided to elaborate a bit less on the user-space
details.

[1]: https://gitlab.freedesktop.org/mesa/drm/-/merge_requests/110

Signed-off-by: Simon Ser <contact@emersion.fr>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Pekka Paalanen <ppaalanen@gmail.com>
Cc: Daniel Stone <daniel@fooishbar.org>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Pekka Paalanen <pekka.paalanen@collabora.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230216130934.156541-2-contact@emersion.fr
2023-02-17 10:30:49 +01:00
Roman Gushchin
f7a449f779 mm: memcontrol: rename memcg_kmem_enabled()
Currently there are two kmem-related helper functions with a confusing
semantics: memcg_kmem_enabled() and mem_cgroup_kmem_disabled().

The problem is that an obvious expectation
memcg_kmem_enabled() == !mem_cgroup_kmem_disabled(),
can be false.

mem_cgroup_kmem_disabled() is similar to mem_cgroup_disabled(): it returns
true only if CONFIG_MEMCG_KMEM is not set or the kmem accounting is
disabled using a boot time kernel option "cgroup.memory=nokmem".  It never
changes the value dynamically.

memcg_kmem_enabled() is different: it always returns false until the first
non-root memory cgroup will get online (assuming the kernel memory
accounting is enabled).  It's goal is to improve the performance on
systems without the cgroupfs mounted/memory controller enabled or on the
systems with only the root memory cgroup.

To make things more obvious and avoid potential bugs, let's rename
memcg_kmem_enabled() to memcg_kmem_online().

Link: https://lkml.kernel.org/r/20230213192922.1146370-1-roman.gushchin@linux.dev
Signed-off-by: Roman Gushchin <roman.gushchin@linux.dev>
Acked-by: Muchun Song <songmuchun@bytedance.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Shakeel Butt <shakeelb@google.com>
Cc: Dennis Zhou <dennis@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2023-02-16 20:43:56 -08:00
Huang Ying
64c8902ed4 migrate_pages: split unmap_and_move() to _unmap() and _move()
This is a preparation patch to batch the folio unmapping and moving.

In this patch, unmap_and_move() is split to migrate_folio_unmap() and
migrate_folio_move().  So, we can batch _unmap() and _move() in different
loops later.  To pass some information between unmap and move, the
original unused dst->mapping and dst->private are used.

Link: https://lkml.kernel.org/r/20230213123444.155149-5-ying.huang@intel.com
Signed-off-by: "Huang, Ying" <ying.huang@intel.com>
Reviewed-by: Baolin Wang <baolin.wang@linux.alibaba.com>
Reviewed-by: Xin Hao <xhao@linux.alibaba.com>
Cc: Zi Yan <ziy@nvidia.com>
Cc: Yang Shi <shy828301@gmail.com>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Bharata B Rao <bharata@amd.com>
Cc: Alistair Popple <apopple@nvidia.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Hyeonggon Yoo <42.hyeyoo@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2023-02-16 20:43:53 -08:00
Andrey Konovalov
0621d160f1 lib/stackdepot: move documentation comments to stackdepot.h
Move all interface- and usage-related documentation comments to
include/linux/stackdepot.h.

It makes sense to have them in the header where they are available to
the interface users.

[akpm@linux-foundation.org: grammar fix, per Alexander]
Link: https://lkml.kernel.org/r/fbfee41495b306dd8881f9b1c1b80999c885e82f.1676063693.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Alexander Potapenko <glider@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2023-02-16 20:43:52 -08:00
Andrey Konovalov
b232b9995a lib/stackdepot: various comments clean-ups
Clean up comments in include/linux/stackdepot.h and lib/stackdepot.c:

1. Rework the initialization comment in stackdepot.h.
2. Rework the header comment in stackdepot.c.
3. Various clean-ups for other comments.

Also adjust whitespaces for find_stack and depot_alloc_stack call sites.

No functional changes.

Link: https://lkml.kernel.org/r/5836231b7954355e2311fc9b5870f697ea8e1f7d.1676063693.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Alexander Potapenko <glider@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2023-02-16 20:43:52 -08:00
Andrey Konovalov
36aa1e6779 lib/stacktrace, kasan, kmsan: rework extra_bits interface
The current implementation of the extra_bits interface is confusing:
passing extra_bits to __stack_depot_save makes it seem that the extra
bits are somehow stored in stack depot. In reality, they are only
embedded into a stack depot handle and are not used within stack depot.

Drop the extra_bits argument from __stack_depot_save and instead provide
a new stack_depot_set_extra_bits function (similar to the exsiting
stack_depot_get_extra_bits) that saves extra bits into a stack depot
handle.

Update the callers of __stack_depot_save to use the new interace.

This change also fixes a minor issue in the old code: __stack_depot_save
does not return NULL if saving stack trace fails and extra_bits is used.

Link: https://lkml.kernel.org/r/317123b5c05e2f82854fc55d8b285e0869d3cb77.1676063693.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Alexander Potapenko <glider@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2023-02-16 20:43:51 -08:00
Andrey Konovalov
1c0310add7 lib/stackdepot, mm: rename stack_depot_want_early_init
Rename stack_depot_want_early_init to stack_depot_request_early_init.

The old name is confusing, as it hints at returning some kind of intention
of stack depot.  The new name reflects that this function requests an
action from stack depot instead.

No functional changes.

[akpm@linux-foundation.org: update mm/kmemleak.c]
Link: https://lkml.kernel.org/r/359f31bf67429a06e630b4395816a967214ef753.1676063693.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Alexander Potapenko <glider@google.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2023-02-16 20:43:49 -08:00
Andrey Konovalov
15ef6a982f lib/stackdepot: put functions in logical order
Patch series "lib/stackdepot: fixes and clean-ups", v2.

A set of fixes, comments, and clean-ups I came up with while reading
the stack depot code.


This patch (of 18):

Put stack depot functions' declarations and definitions in a more logical
order:

1. Functions that save stack traces into stack depot.
2. Functions that fetch and print stack traces.
3. stack_depot_get_extra_bits that operates on stack depot handles
   and does not interact with the stack depot storage.

No functional changes.

Link: https://lkml.kernel.org/r/cover.1676063693.git.andreyknvl@google.com
Link: https://lkml.kernel.org/r/daca1319b665d826b94c596b992a8d8117846147.1676063693.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Alexander Potapenko <glider@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Marco Elver <elver@google.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2023-02-16 20:43:48 -08:00
Linus Torvalds
ec35307e18 drm fixes for 6.2 final
drm:
 - dynamic debug disable for now
 
 fbdev:
 - deferred i/o device close fix
 
 amdgpu:
 - Fix GC11.x suspend warning
 - Fix display warning
 
 vc4:
 - YUV planes fix
 - hdmi display fix
 - crtc reduced blanking fix
 
 ast:
 - fix start address computation
 
 vmwgfx:
 - fix bo/handle races
 
 i915:
 - gen11 WA fix
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Merge tag 'drm-fixes-2023-02-17' of git://anongit.freedesktop.org/drm/drm

Pull drm fixes from Dave Airlie:
 "Just a final collection of misc fixes, the biggest disables the
  recently added dynamic debugging support, it has a regression that
  needs some bigger fixes.

  Otherwise a bunch of fixes across the board, vc4, amdgpu and vmwgfx
  mostly, with some smaller i915 and ast fixes.

  drm:
   - dynamic debug disable for now

  fbdev:
   - deferred i/o device close fix

  amdgpu:
   - Fix GC11.x suspend warning
   - Fix display warning

  vc4:
   - YUV planes fix
   - hdmi display fix
   - crtc reduced blanking fix

  ast:
   - fix start address computation

  vmwgfx:
   - fix bo/handle races

  i915:
   - gen11 WA fix"

* tag 'drm-fixes-2023-02-17' of git://anongit.freedesktop.org/drm/drm:
  drm/amd/display: Fail atomic_check early on normalize_zpos error
  drm/amd/amdgpu: fix warning during suspend
  drm/vmwgfx: Do not drop the reference to the handle too soon
  drm/vmwgfx: Stop accessing buffer objects which failed init
  drm/i915/gen11: Wa_1408615072/Wa_1407596294 should be on GT list
  drm: Disable dynamic debug as broken
  drm/ast: Fix start address computation
  fbdev: Fix invalid page access after closing deferred I/O devices
  drm/vc4: crtc: Increase setup cost in core clock calculation to handle extreme reduced blanking
  drm/vc4: hdmi: Always enable GCP with AVMUTE cleared
  drm/vc4: Fix YUV plane handling when planes are in different buffers
2023-02-16 20:23:32 -08:00
Aidan MacDonald
c74e7af124
regmap-irq: Remove unused mask_invert flag
mask_invert is deprecated and no longer used; it can now be removed.

Signed-off-by: Aidan MacDonald <aidanmacdonald.0x0@gmail.com>
Link: https://lore.kernel.org/r/20230216223200.150679-2-aidanmacdonald.0x0@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2023-02-17 00:08:44 +00:00
Aidan MacDonald
483e6ea1b3
regmap-irq: Remove unused type_invert flag
type_invert is deprecated and no longer used; it can now be removed.

Signed-off-by: Aidan MacDonald <aidanmacdonald.0x0@gmail.com>
Link: https://lore.kernel.org/r/20230216223200.150679-1-aidanmacdonald.0x0@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2023-02-17 00:08:43 +00:00
Dave Airlie
a2a04b5155 Multiple fixes in vc4 to address issues with YUV planes, HDMI and CRTC;
an invalid page access fix for fbdev, mark dynamic debug as broken, a
 double free and refcounting fix for vmwgfx.
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Merge tag 'drm-misc-fixes-2023-02-16' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes

Multiple fixes in vc4 to address issues with YUV planes, HDMI and CRTC;
an invalid page access fix for fbdev, mark dynamic debug as broken, a
double free and refcounting fix for vmwgfx.

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20230216091905.i5wswy4dd74x4br5@houat
2023-02-17 09:24:05 +10:00
Mark Rutland
61d0386273 arm_pmu: fix event CPU filtering
Janne reports that perf has been broken on Apple M1 as of commit:

  bd27568117 ("perf: Rewrite core context handling")

That commit replaced the pmu::filter_match() callback with
pmu::filter(), whose return value has the opposite polarity, with true
implying events should be ignored rather than scheduled. While an
attempt was made to update the logic in armv8pmu_filter() and
armpmu_filter() accordingly, the return value remains inverted in a
couple of cases:

* If the arm_pmu does not have an arm_pmu::filter() callback,
  armpmu_filter() will always return whether the CPU is supported rather
  than whether the CPU is not supported.

  As a result, the perf core will not schedule events on supported CPUs,
  resulting in a loss of events. Additionally, the perf core will
  attempt to schedule events on unsupported CPUs, but this will be
  rejected by armpmu_add(), which may result in a loss of events from
  other PMUs on those unsupported CPUs.

* If the arm_pmu does have an arm_pmu::filter() callback, and
  armpmu_filter() is called on a CPU which is not supported by the
  arm_pmu, armpmu_filter() will return false rather than true.

  As a result, the perf core will attempt to schedule events on
  unsupported CPUs, but this will be rejected by armpmu_add(), which may
  result in a loss of events from other PMUs on those unsupported CPUs.

This means a loss of events can be seen with any arm_pmu driver, but
with the ARMv8 PMUv3 driver (which is the only arm_pmu driver with an
arm_pmu::filter() callback) the event loss will be more limited and may
go unnoticed, which is how this issue evaded testing so far.

Fix the CPU filtering by performing this consistently in
armpmu_filter(), and remove the redundant arm_pmu::filter() callback and
armv8pmu_filter() implementation.

Commit bd27568117 also silently removed the CHAIN event filtering from
armv8pmu_filter(), which will be addressed by a separate patch without
using the filter callback.

Fixes: bd27568117 ("perf: Rewrite core context handling")
Reported-by: Janne Grunau <j@jannau.net>
Link: https://lore.kernel.org/asahi/20230215-arm_pmu_m1_regression-v1-1-f5a266577c8d@jannau.net/
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ravi Bangoria <ravi.bangoria@amd.com>
Cc: Asahi Lina <lina@asahilina.net>
Cc: Eric Curtin <ecurtin@redhat.com>
Tested-by: Janne Grunau <j@jannau.net>
Link: https://lore.kernel.org/r/20230216141240.3833272-2-mark.rutland@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
2023-02-16 21:23:52 +00:00
Linus Torvalds
3ac88fa460 Fixes from the main networking tree only.
Current release - regressions:
 
   - fix unwanted sign extension in netdev_stats_to_stats64()
 
 Current release - new code bugs:
 
  - initialize net->notrefcnt_tracker earlier
 
  - devlink: fix netdev notifier chain corruption
 
  - nfp: make sure mbox accesses in IPsec code are atomic
 
  - ice: fix check for weight and priority of a scheduling node
 
 Previous releases - regressions:
 
  - ice: xsk: fix cleaning of XDP_TX frame, prevent inf loop
 
  - igb: fix I2C bit banging config with external thermal sensor
 
 Previous releases - always broken:
 
  - sched: tcindex: update imperfect hash filters respecting rcu
 
  - mpls: fix stale pointer if allocation fails during device rename
 
  - dccp/tcp: avoid negative sk_forward_alloc by ipv6_pinfo.pktoptions
 
  - remove WARN_ON_ONCE(sk->sk_forward_alloc) from sk_stream_kill_queues()
 
  - af_key: fix heap information leak
 
  - ipv6: fix socket connection with DSCP (correct interpretation
    of the tclass field vs fib rule matching)
 
  - tipc: fix kernel warning when sending SYN message
 
  - vmxnet3: read RSS information from the correct descriptor (eop)
 
 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-6.2-final' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Pull networking fixes from Jakub Kicinski:
 "Fixes from the main networking tree only, probably because all
  sub-trees have backed off and haven't submitted their changes.

  None of the fixes here are particularly scary and no outstanding
  regressions. In an ideal world the "current release" sections would be
  empty at this stage but that never happens.

  Current release - regressions:

   - fix unwanted sign extension in netdev_stats_to_stats64()

  Current release - new code bugs:

   - initialize net->notrefcnt_tracker earlier

   - devlink: fix netdev notifier chain corruption

   - nfp: make sure mbox accesses in IPsec code are atomic

   - ice: fix check for weight and priority of a scheduling node

  Previous releases - regressions:

   - ice: xsk: fix cleaning of XDP_TX frame, prevent inf loop

   - igb: fix I2C bit banging config with external thermal sensor

  Previous releases - always broken:

   - sched: tcindex: update imperfect hash filters respecting rcu

   - mpls: fix stale pointer if allocation fails during device rename

   - dccp/tcp: avoid negative sk_forward_alloc by ipv6_pinfo.pktoptions

   - remove WARN_ON_ONCE(sk->sk_forward_alloc) from
     sk_stream_kill_queues()

   - af_key: fix heap information leak

   - ipv6: fix socket connection with DSCP (correct interpretation of
     the tclass field vs fib rule matching)

   - tipc: fix kernel warning when sending SYN message

   - vmxnet3: read RSS information from the correct descriptor (eop)"

* tag 'net-6.2-final' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (35 commits)
  devlink: Fix netdev notifier chain corruption
  igb: conditionalize I2C bit banging on external thermal sensor support
  net: mpls: fix stale pointer if allocation fails during device rename
  net/sched: tcindex: search key must be 16 bits
  tipc: fix kernel warning when sending SYN message
  igb: Fix PPS input and output using 3rd and 4th SDP
  net: use a bounce buffer for copying skb->mark
  ixgbe: add double of VLAN header when computing the max MTU
  i40e: add double of VLAN header when computing the max MTU
  ixgbe: allow to increase MTU to 3K with XDP enabled
  net: stmmac: Restrict warning on disabling DMA store and fwd mode
  net/sched: act_ctinfo: use percpu stats
  net: stmmac: fix order of dwmac5 FlexPPS parametrization sequence
  ice: fix lost multicast packets in promisc mode
  ice: Fix check for weight and priority of a scheduling node
  bnxt_en: Fix mqprio and XDP ring checking logic
  net: Fix unwanted sign extension in netdev_stats_to_stats64()
  net/usb: kalmia: Don't pass act_len in usb_bulk_msg error path
  net: openvswitch: fix possible memory leak in ovs_meter_cmd_set()
  af_key: Fix heap information leak
  ...
2023-02-16 12:13:58 -08:00
Jakub Kicinski
84cb1b53cd Merge branch 'mlx5-next' of https://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux
Leon Romanovsky says:

====================
mlx5-next changes

Following previous conversations [1] and our clear commitment to do
the TC work [2], please pull mlx5-next shared branch, which includes
low-level steering logic to allow RoCEv2 traffic to be encrypted/
decrypted through IPsec.

[1] https://lore.kernel.org/all/20230126230815.224239-1-saeed@kernel.org/
[2] https://lore.kernel.org/all/Y+Z7lVVWqnRBiPh2@nvidia.com/

* 'mlx5-next' of https://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux:
  net/mlx5: Configure IPsec steering for egress RoCEv2 traffic
  net/mlx5: Configure IPsec steering for ingress RoCEv2 traffic
  net/mlx5: Add IPSec priorities in RDMA namespaces
  net/mlx5: Implement new destination type TABLE_TYPE
  net/mlx5: Introduce new destination type TABLE_TYPE
====================

Link: https://lore.kernel.org/r/20230215095624.1365200-1-leon@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-02-16 11:36:14 -08:00
Guenter Roeck
5720a18baa hwmon: Deprecate [devm_]hwmon_device_register_with_groups
Even though the hardware monitoring documentation already stated that new
drivers should use [devm_]devm_hwmon_device_register_with_info() to
register with the hardware monitoring subsystem, we still get submissions
for new drivers using the older APIs. There is no benefit to use those
APIs. On the contrary, using the older APIs results in substantially larger
code size. Explicitly deprecate [devm_]hwmon_device_register_with_groups()
to ensure that all new drivers use the latest API.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2023-02-16 11:34:19 -08:00
Jakub Kicinski
ca0df43d21 Major stack changes:
* EHT channel puncturing support (client & AP)
  * some support for AP MLD without mac80211
  * fixes for A-MSDU on mesh connections
 
 Major driver changes:
 
 iwlwifi
  * EHT rate reporting
  * Bump FW API to 74 for AX devices
  * STEP equalizer support: transfer some STEP (connection to radio
    on platforms with integrated wifi) related parameters from the
    BIOS to the firmware
 
 mt76
  * switch to using page pool allocator
  * mt7996 EHT (Wi-Fi 7) support
  * Wireless Ethernet Dispatch (WED) reset support
 
 libertas
  * WPS enrollee support
 
 brcmfmac
  * Rename Cypress 89459 to BCM4355
  * BCM4355 and BCM4377 support
 
 mwifiex
  * SD8978 chipset support
 
 rtl8xxxu
  * LED support
 
 ath12k
  * new driver for Qualcomm Wi-Fi 7 devices
 
 ath11k
  * IPQ5018 support
  * Fine Timing Measurement (FTM) responder role support
  * channel 177 support
 
 ath10k
  * store WLAN firmware version in SMEM image table
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Merge tag 'wireless-next-2023-03-16' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next

Johannes Berg says:

====================
Major stack changes:
 * EHT channel puncturing support (client & AP)
 * some support for AP MLD without mac80211
 * fixes for A-MSDU on mesh connections

Major driver changes:

iwlwifi
 * EHT rate reporting
 * Bump FW API to 74 for AX devices
 * STEP equalizer support: transfer some STEP (connection to radio
   on platforms with integrated wifi) related parameters from the
   BIOS to the firmware

mt76
 * switch to using page pool allocator
 * mt7996 EHT (Wi-Fi 7) support
 * Wireless Ethernet Dispatch (WED) reset support

libertas
 * WPS enrollee support

brcmfmac
 * Rename Cypress 89459 to BCM4355
 * BCM4355 and BCM4377 support

mwifiex
 * SD8978 chipset support

rtl8xxxu
 * LED support

ath12k
 * new driver for Qualcomm Wi-Fi 7 devices

ath11k
 * IPQ5018 support
 * Fine Timing Measurement (FTM) responder role support
 * channel 177 support

ath10k
 * store WLAN firmware version in SMEM image table

* tag 'wireless-next-2023-03-16' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next: (207 commits)
  wifi: brcmfmac: p2p: Introduce generic flexible array frame member
  wifi: mac80211: add documentation for amsdu_mesh_control
  wifi: cfg80211: remove gfp parameter from cfg80211_obss_color_collision_notify description
  wifi: mac80211: always initialize link_sta with sta
  wifi: mac80211: pass 'sta' to ieee80211_rx_data_set_sta()
  wifi: cfg80211: Set SSID if it is not already set
  wifi: rtw89: move H2C of del_pkt_offload before polling FW status ready
  wifi: rtw89: use readable return 0 in rtw89_mac_cfg_ppdu_status()
  wifi: rtw88: usb: drop now unnecessary URB size check
  wifi: rtw88: usb: send Zero length packets if necessary
  wifi: rtw88: usb: Set qsel correctly
  wifi: mac80211: fix off-by-one link setting
  wifi: mac80211: Fix for Rx fragmented action frames
  wifi: mac80211: avoid u32_encode_bits() warning
  wifi: mac80211: Don't translate MLD addresses for multicast
  wifi: cfg80211: call reg_notifier for self managed wiphy from driver hint
  wifi: cfg80211: get rid of gfp in cfg80211_bss_color_notify
  wifi: nl80211: Allow authentication frames and set keys on NAN interface
  wifi: mac80211: fix non-MLO station association
  wifi: mac80211: Allow NSS change only up to capability
  ...
====================

Link: https://lore.kernel.org/r/20230216105406.208416-1-johannes@sipsolutions.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-02-16 11:33:10 -08:00
Christoph Hellwig
5e7b9a6ae8 swiotlb: remove swiotlb_max_segment
swiotlb_max_segment has always been a bogus API, so remove it now that
the remaining callers are gone.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
2023-02-16 18:10:18 +01:00
Takashi Iwai
1bdb78368f ASoC: Updates for v6.3
There's been quite a lot of activity this release, but not really
 one big feature - lots of new devices, plus a lot of cleanup and
 modernisation work spread throughout the subsystem:
 
  - More factoring out of common operations into helper functions
    by Morimoto-san.
  - DT schema conversons and stylistic nits.
  - Continued work on building out the new SOF IPC4 scheme.
  - Support for Awinc AT88395, Infineon PEB2466, Iron Device
    SMA1303, Mediatek MT8188, Realtek RT712, Renesas IDT821034,
    Samsung/Tesla FSD SoC I2S, and TI TAS5720A-Q1.
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Merge tag 'asoc-v6.3' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-next

ASoC: Updates for v6.3

There's been quite a lot of activity this release, but not really
one big feature - lots of new devices, plus a lot of cleanup and
modernisation work spread throughout the subsystem:

 - More factoring out of common operations into helper functions
   by Morimoto-san.
 - DT schema conversons and stylistic nits.
 - Continued work on building out the new SOF IPC4 scheme.
 - Support for Awinc AT88395, Infineon PEB2466, Iron Device
   SMA1303, Mediatek MT8188, Realtek RT712, Renesas IDT821034,
   Samsung/Tesla FSD SoC I2S, and TI TAS5720A-Q1.
2023-02-16 14:32:04 +01:00
Takashi Iwai
5661706efa Merge branch 'topic/apple-gmux' into for-next
Pull vga_switcheroo fix for Macs

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-02-16 14:18:54 +01:00
Josh Triplett
7d3fd88d61 io_uring: Support calling io_uring_register with a registered ring fd
Add a new flag IORING_REGISTER_USE_REGISTERED_RING (set via the high bit
of the opcode) to treat the fd as a registered index rather than a file
descriptor.

This makes it possible for a library to open an io_uring, register the
ring fd, close the ring fd, and subsequently use the ring entirely via
registered index.

Signed-off-by: Josh Triplett <josh@joshtriplett.org>
Link: https://lore.kernel.org/r/f2396369e638284586b069dbddffb8c992afba95.1676419314.git.josh@joshtriplett.org
[axboe: remove extra high bit clear]
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2023-02-16 06:09:30 -07:00
Daniel Starke
72206cc730 tty: n_gsm: add keep alive support
n_gsm is based on the 3GPP 07.010 and its newer version is the 3GPP 27.010.
See https://portal.3gpp.org/desktopmodules/Specifications/SpecificationDetails.aspx?specificationId=1516
The changes from 07.010 to 27.010 are non-functional. Therefore, I refer to
the newer 27.010 here. Chapters 5.4.6.3.4 and 5.1.8.1.3 describe the test
command which can be used to test the mux connection between both sides.

Currently, no algorithm is implemented to make use of this command. This
requires that each multiplexed upper layer protocol supervises the
underlying muxer connection to handle possible connection losses.

Introduce ioctl commands and functions to optionally enable keep alive
handling via the test command as described in chapter 5.4.6.3.4. A single
incrementing octet "ka_num" is being used for unique identification of each
single keep alive packet. Retries will use the same "ka_num" value as the
original packet. Retry count and interval are taken from the general
parameters N2 and T2.

Add usage description and basic example for the new ioctl to the n_gsm
documentation.

Note that support for the test command is mandatory and already present in
the muxer implementation since the very first version.
Also note that the previous ioctl structure gsm_config cannot be extended
due to missing checks against zero of the field "unused".

Signed-off-by: Daniel Starke <daniel.starke@siemens.com>
Link: https://lore.kernel.org/r/20230214122737.1976-1-daniel.starke@siemens.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-02-16 13:50:50 +01:00
Randy Dunlap
007ed7900a i3c: fix device.h kernel-doc warnings
Fix all kernel-doc warnings in <linux/i3c/device.h>:

include/linux/i3c/device.h:27: warning: contents before sections
include/linux/i3c/device.h:196: warning: Excess function parameter 'dev' description in 'dev_to_i3cdev'

Fixes: fa838c8ce5 ("i3c: move dev_to_i3cdev() to use container_of_const()")
Fixes: 3a379bbcea ("i3c: Add core I3C infrastructure")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Boris Brezillon <boris.brezillon@bootlin.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: linux-i3c@lists.infradead.org
Link: https://lore.kernel.org/r/20230213070324.1564-1-rdunlap@infradead.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-02-16 13:42:22 +01:00
Ido Schimmel
b20b8aec6f devlink: Fix netdev notifier chain corruption
Cited commit changed devlink to register its netdev notifier block on
the global netdev notifier chain instead of on the per network namespace
one.

However, when changing the network namespace of the devlink instance,
devlink still tries to unregister its notifier block from the chain of
the old namespace and register it on the chain of the new namespace.
This results in corruption of the notifier chains, as the same notifier
block is registered on two different chains: The global one and the per
network namespace one. In turn, this causes other problems such as the
inability to dismantle namespaces due to netdev reference count issues.

Fix by preventing devlink from moving its notifier block between
namespaces.

Reproducer:

 # echo "10 1" > /sys/bus/netdevsim/new_device
 # ip netns add test123
 # devlink dev reload netdevsim/netdevsim10 netns test123
 # ip netns del test123
 [   71.935619] unregister_netdevice: waiting for lo to become free. Usage count = 2
 [   71.938348] leaked reference.

Fixes: 565b4824c3 ("devlink: change port event netdev notifier from per-net to global")
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Link: https://lore.kernel.org/r/20230215073139.1360108-1-idosch@nvidia.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2023-02-16 11:53:47 +01:00
Chaitanya Kumar Borah
61b795a9c3 drm/i915: Add RPL-U sub platform
Separate out RPLU device ids and add them to both RPL and
newly created RPL-U subplatforms.

v2: (Matt)
    - Sort PCI-IDs numerically
    - Name the sub-platform to accurately depict what it is for
    - Make RPL-U part of RPL subplatform

v3: revert to RPL-U subplatform (Jani)

v4: (Jani)
    - Add RPL-U ids to RPL-P platform
    - Remove redundant comment

Signed-off-by: Chaitanya Kumar Borah <chaitanya.kumar.borah@intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230130100806.1373883-2-chaitanya.kumar.borah@intel.com
2023-02-16 12:29:51 +02:00
Pedro Tammela
288864effe net/sched: act_connmark: transition to percpu stats and rcu
The tc action act_connmark was using shared stats and taking the per
action lock in the datapath. Improve it by using percpu stats and rcu.

perf before:
- 13.55% tcf_connmark_act
   - 81.18% _raw_spin_lock
       80.46% native_queued_spin_lock_slowpath

perf after:
- 2.85% tcf_connmark_act

tdc results:
1..15
ok 1 2002 - Add valid connmark action with defaults
ok 2 56a5 - Add valid connmark action with control pass
ok 3 7c66 - Add valid connmark action with control drop
ok 4 a913 - Add valid connmark action with control pipe
ok 5 bdd8 - Add valid connmark action with control reclassify
ok 6 b8be - Add valid connmark action with control continue
ok 7 d8a6 - Add valid connmark action with control jump
ok 8 aae8 - Add valid connmark action with zone argument
ok 9 2f0b - Add valid connmark action with invalid zone argument
ok 10 9305 - Add connmark action with unsupported argument
ok 11 71ca - Add valid connmark action and replace it
ok 12 5f8f - Add valid connmark action with cookie
ok 13 c506 - Replace connmark with invalid goto chain control
ok 14 6571 - Delete connmark action with valid index
ok 15 3426 - Delete connmark action with invalid index

Reviewed-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: Pedro Tammela <pctammela@mojatatu.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2023-02-16 10:39:28 +01:00
Pedro Tammela
7d12057b45 net/sched: act_nat: transition to percpu stats and rcu
The tc action act_nat was using shared stats and taking the per action
lock in the datapath. Improve it by using percpu stats and rcu.

perf before:
- 10.48% tcf_nat_act
   - 81.83% _raw_spin_lock
        81.08% native_queued_spin_lock_slowpath

perf after:
- 0.48% tcf_nat_act

tdc results:
1..27
ok 1 7565 - Add nat action on ingress with default control action
ok 2 fd79 - Add nat action on ingress with pipe control action
ok 3 eab9 - Add nat action on ingress with continue control action
ok 4 c53a - Add nat action on ingress with reclassify control action
ok 5 76c9 - Add nat action on ingress with jump control action
ok 6 24c6 - Add nat action on ingress with drop control action
ok 7 2120 - Add nat action on ingress with maximum index value
ok 8 3e9d - Add nat action on ingress with invalid index value
ok 9 f6c9 - Add nat action on ingress with invalid IP address
ok 10 be25 - Add nat action on ingress with invalid argument
ok 11 a7bd - Add nat action on ingress with DEFAULT IP address
ok 12 ee1e - Add nat action on ingress with ANY IP address
ok 13 1de8 - Add nat action on ingress with ALL IP address
ok 14 8dba - Add nat action on egress with default control action
ok 15 19a7 - Add nat action on egress with pipe control action
ok 16 f1d9 - Add nat action on egress with continue control action
ok 17 6d4a - Add nat action on egress with reclassify control action
ok 18 b313 - Add nat action on egress with jump control action
ok 19 d9fc - Add nat action on egress with drop control action
ok 20 a895 - Add nat action on egress with DEFAULT IP address
ok 21 2572 - Add nat action on egress with ANY IP address
ok 22 37f3 - Add nat action on egress with ALL IP address
ok 23 6054 - Add nat action on egress with cookie
ok 24 79d6 - Add nat action on ingress with cookie
ok 25 4b12 - Replace nat action with invalid goto chain control
ok 26 b811 - Delete nat action with valid index
ok 27 a521 - Delete nat action with invalid index

Reviewed-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: Pedro Tammela <pctammela@mojatatu.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2023-02-16 10:39:28 +01:00
Kees Cook
1a30a6b25f wifi: brcmfmac: p2p: Introduce generic flexible array frame member
Silence run-time memcpy() false positive warning when processing
management frames:

  memcpy: detected field-spanning write (size 27) of single field "&mgmt_frame->u" at drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c:1469 (size 26)

Due to this (soon to be fixed) GCC bug[1], FORTIFY_SOURCE (via
__builtin_dynamic_object_size) doesn't recognize that the union may end
with a flexible array, and returns "26" (the fixed size of the union),
rather than the remaining size of the allocation. Add an explicit
flexible array member and set it as the destination here, so that we
get the correct coverage for the memcpy().

[1] https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101832

Reported-by: Ard Biesheuvel <ardb@kernel.org>
Cc: Arend van Spriel <aspriel@gmail.com>
Cc: Franky Lin <franky.lin@broadcom.com>
Cc: Hante Meuleman <hante.meuleman@broadcom.com>
Cc: Kalle Valo <kvalo@kernel.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Paolo Abeni <pabeni@redhat.com>
Cc: Johannes Berg <johannes@sipsolutions.net>
Cc: "Jason A. Donenfeld" <Jason@zx2c4.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: "Darrick J. Wong" <djwong@kernel.org>
Cc: Colin Ian King <colin.i.king@gmail.com>
Cc: Brian Henriquez <brian.henriquez@cypress.com>
Cc: linux-wireless@vger.kernel.org
Cc: brcm80211-dev-list.pdl@broadcom.com
Cc: SHA-cyfmac-dev-list@infineon.com
Cc: netdev@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20230215224110.never.022-kees@kernel.org
[rename 'frame' to 'body']
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2023-02-16 09:33:25 +01:00
Jamal Hadi Salim
265b4da82d net/sched: Retire rsvp classifier
The rsvp classifier has served us well for about a quarter of a century but has
has not been getting much maintenance attention due to lack of known users.

Signed-off-by: Jamal Hadi Salim <jhs@mojatatu.com>
Acked-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2023-02-16 09:27:07 +01:00
Jamal Hadi Salim
8c710f7525 net/sched: Retire tcindex classifier
The tcindex classifier has served us well for about a quarter of a century
but has not been getting much TLC due to lack of known users. Most recently
it has become easy prey to syzkaller. For this reason, we are retiring it.

Signed-off-by: Jamal Hadi Salim <jhs@mojatatu.com>
Acked-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2023-02-16 09:27:07 +01:00
Jakub Kicinski
0f19f514de mlx5-updates-2023-02-10
1) From Roi and Mark: MultiPort eswitch support
 
 MultiPort E-Switch builds on newer hardware's capabilities and introduces
 a mode where a single E-Switch is used and all the vports and physical
 ports on the NIC are connected to it.
 
 The new mode will allow in the future a decrease in the memory used by the
 driver and advanced features that aren't possible today.
 
 This represents a big change in the current E-Switch implantation in mlx5.
 Currently, by default, each E-Switch manager manages its E-Switch.
 Steering rules in each E-Switch can only forward traffic to the native
 physical port associated with that E-Switch. While there are ways to target
 non-native physical ports, for example using a bond or via special TC
 rules. None of the ways allows a user to configure the driver
 to operate by default in such a mode nor can the driver decide
 to move to this mode by default as it's user configuration-driven right now.
 
 While MultiPort E-Switch single FDB mode is the preferred mode, older
 generations of ConnectX hardware couldn't support this mode so it was never
 implemented. Now that there is capable hardware present, start the
 transition to having this mode by default.
 
 Introduce a devlink parameter to control MultiPort Eswitch single FDB mode.
 This will allow users to select this mode on their system right now
 and in the future will allow the driver to move to this mode by default.
 
 2) From Jiri: Improvements and fixes for mlx5 netdev's devlink logic
  2.1) Cleanups related to mlx5's devlink port logic
  2.2) Move devlink port registration to be done before netdev alloc
  2.3) Create auxdev devlink instance in the same ns as parent devlink
  2.4) Suspend auxiliary devices only in case of PCI device suspend
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Merge tag 'mlx5-updates-2023-02-10' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux

Saeed Mahameed says:

====================
mlx5-updates-2023-02-10

1) From Roi and Mark: MultiPort eswitch support

MultiPort E-Switch builds on newer hardware's capabilities and introduces
a mode where a single E-Switch is used and all the vports and physical
ports on the NIC are connected to it.

The new mode will allow in the future a decrease in the memory used by the
driver and advanced features that aren't possible today.

This represents a big change in the current E-Switch implantation in mlx5.
Currently, by default, each E-Switch manager manages its E-Switch.
Steering rules in each E-Switch can only forward traffic to the native
physical port associated with that E-Switch. While there are ways to target
non-native physical ports, for example using a bond or via special TC
rules. None of the ways allows a user to configure the driver
to operate by default in such a mode nor can the driver decide
to move to this mode by default as it's user configuration-driven right now.

While MultiPort E-Switch single FDB mode is the preferred mode, older
generations of ConnectX hardware couldn't support this mode so it was never
implemented. Now that there is capable hardware present, start the
transition to having this mode by default.

Introduce a devlink parameter to control MultiPort Eswitch single FDB mode.
This will allow users to select this mode on their system right now
and in the future will allow the driver to move to this mode by default.

2) From Jiri: Improvements and fixes for mlx5 netdev's devlink logic
 2.1) Cleanups related to mlx5's devlink port logic
 2.2) Move devlink port registration to be done before netdev alloc
 2.3) Create auxdev devlink instance in the same ns as parent devlink
 2.4) Suspend auxiliary devices only in case of PCI device suspend

* tag 'mlx5-updates-2023-02-10' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux:
  net/mlx5: Suspend auxiliary devices only in case of PCI device suspend
  net/mlx5: Remove "recovery" arg from mlx5_load_one() function
  net/mlx5e: Create auxdev devlink instance in the same ns as parent devlink
  net/mlx5e: Move devlink port registration to be done before netdev alloc
  net/mlx5e: Move dl_port to struct mlx5e_dev
  net/mlx5e: Replace usage of mlx5e_devlink_get_dl_port() by netdev->devlink_port
  net/mlx5e: Pass mdev to mlx5e_devlink_port_register()
  net/mlx5: Remove outdated comment
  net/mlx5e: TC, Remove redundant parse_attr argument
  net/mlx5e: Use a simpler comparison for uplink rep
  net/mlx5: Lag, Add single RDMA device in multiport mode
  net/mlx5: Lag, set different uplink vport metadata in multiport eswitch mode
  net/mlx5: E-Switch, rename bond update function to be reused
  net/mlx5e: TC, Add peer flow in mpesw mode
  net/mlx5: Lag, Control MultiPort E-Switch single FDB mode
====================

Link: https://lore.kernel.org/r/20230214221239.159033-1-saeed@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-02-15 19:24:52 -08:00
Moshe Shemesh
d0ab772c1f devlink: Fix TP_STRUCT_entry in trace of devlink health report
Fix a bug in trace point definition for devlink health report, as
TP_STRUCT_entry of reporter_name should get reporter_name and not msg.

Note no fixes tag as this is a harmless bug as both reporter_name and
msg are strings and TP_fast_assign for this entry is correct.

Signed-off-by: Moshe Shemesh <moshe@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-02-15 19:15:44 -08:00