Merge drm/drm-fixes into drm-misc-fixes

Let's start the 5.18 fixes cycle.

Signed-off-by: Maxime Ripard <maxime@cerno.tech>

Merge tag 'net-5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Pull more networking updates from Jakub Kicinski:
"Networking fixes and rethook patches.

Features:

- kpro

Merge tag 'net-5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Pull more networking updates from Jakub Kicinski:
"Networking fixes and rethook patches.

Features:

- kprobes: rethook: x86: replace kretprobe trampoline with rethook

Current release - regressions:

- sfc: avoid null-deref on systems without NUMA awareness in the new
queue sizing code

Current release - new code bugs:

- vxlan: do not feed vxlan_vnifilter_dump_dev with non-vxlan devices

- eth: lan966x: fix null-deref on PHY pointer in timestamp ioctl when
interface is down

Previous releases - always broken:

- openvswitch: correct neighbor discovery target mask field in the
flow dump

- wireguard: ignore v6 endpoints when ipv6 is disabled and fix a leak

- rxrpc: fix call timer start racing with call destruction

- rxrpc: fix null-deref when security type is rxrpc_no_security

- can: fix UAF bugs around echo skbs in multiple drivers

Misc:

- docs: move netdev-FAQ to the 'process' section of the
documentation"

* tag 'net-5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (57 commits)
vxlan: do not feed vxlan_vnifilter_dump_dev with non vxlan devices
openvswitch: Add recirc_id to recirc warning
rxrpc: fix some null-ptr-deref bugs in server_key.c
rxrpc: Fix call timer start racing with call destruction
net: hns3: fix software vlan talbe of vlan 0 inconsistent with hardware
net: hns3: fix the concurrency between functions reading debugfs
docs: netdev: move the netdev-FAQ to the process pages
docs: netdev: broaden the new vs old code formatting guidelines
docs: netdev: call out the merge window in tag checking
docs: netdev: add missing back ticks
docs: netdev: make the testing requirement more stringent
docs: netdev: add a question about re-posting frequency
docs: netdev: rephrase the 'should I update patchwork' question
docs: netdev: rephrase the 'Under review' question
docs: netdev: shorten the name and mention msgid for patch status
docs: netdev: note that RFC postings are allowed any time
docs: netdev: turn the net-next closed into a Warning
docs: netdev: move the patch marking section up
docs: netdev: minor reword
docs: netdev: replace references to old archives
...

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Merge https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf

Alexei Starovoitov says:

====================
pull-request: bpf 2022-03-29

We've added 16 non-merge commits during the last 1 day(s) w

Merge https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf

Alexei Starovoitov says:

====================
pull-request: bpf 2022-03-29

We've added 16 non-merge commits during the last 1 day(s) which contain
a total of 24 files changed, 354 insertions(+), 187 deletions(-).

The main changes are:

1) x86 specific bits of fprobe/rethook, from Masami and Peter.

2) ice/xsk fixes, from Maciej and Magnus.

3) Various small fixes, from Andrii, Yonghong, Geliang and others.

* https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf:
selftests/bpf: Fix clang compilation errors
ice: xsk: Fix indexing in ice_tx_xsk_pool()
ice: xsk: Stop Rx processing when ntc catches ntu
ice: xsk: Eliminate unnecessary loop iteration
xsk: Do not write NULL in SW ring at allocation failure
x86,kprobes: Fix optprobe trampoline to generate complete pt_regs
x86,rethook: Fix arch_rethook_trampoline() to generate a complete pt_regs
x86,rethook,kprobes: Replace kretprobe with rethook on x86
kprobes: Use rethook for kretprobe if possible
bpftool: Fix generated code in codegen_asserts
selftests/bpf: fix selftest after random: Urandom_read tracepoint removal
bpf: Fix maximum permitted number of arguments check
bpf: Sync comments for bpf_get_stack
fprobe: Fix sparse warning for acccessing __rcu ftrace_hash
fprobe: Fix smatch type mismatch warning
bpf/bpftool: Add unprivileged_bpf_disabled check against value of 2
====================

Link: https://lore.kernel.org/r/20220329234924.39053-1-alexei.starovoitov@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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Merge branch 'kprobes: rethook: x86: Replace kretprobe trampoline with rethook'

Masami Hiramatsu says:

====================
Here are the 3rd version for generic kretprobe and kretprobe on x86 for
r

Merge branch 'kprobes: rethook: x86: Replace kretprobe trampoline with rethook'

Masami Hiramatsu says:

====================
Here are the 3rd version for generic kretprobe and kretprobe on x86 for
replacing the kretprobe trampoline with rethook. The previous version
is here[1]

[1] https://lore.kernel.org/all/164821817332.2373735.12048266953420821089.stgit@devnote2/T/#u

This version fixed typo and build issues for bpf-next and CONFIG_RETHOOK=y
error. I also add temporary mitigation lines for ANNOTATE_NOENDBR macro
issue for bpf-next tree [2/4].

This will be removed after merging kernel IBT series.

Background:

This rethook came from Jiri's request of multiple kprobe for bpf[2].
He tried to solve an issue that starting bpf with multiple kprobe will
take a long time because bpf-kprobe will wait for RCU grace period for
sync rcu events.

Jiri wanted to attach a single bpf handler to multiple kprobes and
he tried to introduce multiple-probe interface to kprobe. So I asked
him to use ftrace and kretprobe-like hook if it is only for the
function entry and exit, instead of adding ad-hoc interface
to kprobes.
For this purpose, I introduced the fprobe (kprobe like interface for
ftrace) with the rethook (this is a generic return hook feature for
fprobe exit handler)[3].

[2] https://lore.kernel.org/all/20220104080943.113249-1-jolsa@kernel.org/T/#u
[3] https://lore.kernel.org/all/164191321766.806991.7930388561276940676.stgit@devnote2/T/#u

The rethook is basically same as the kretprobe trampoline. I just made
it decoupled from kprobes. Eventually, the all arch dependent kretprobe
trampolines will be replaced with the rethook trampoline instead of
cloning and set HAVE_RETHOOK=y.
When I port the rethook for all arch which supports kretprobe, the
legacy kretprobe specific code (which is for CONFIG_KRETPROBE_ON_RETHOOK=n)
will be removed eventually.
====================

Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

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x86,kprobes: Fix optprobe trampoline to generate complete pt_regs

Currently the optprobe trampoline template code ganerate an
almost complete pt_regs on-stack, everything except regs->ss.
The 'regs-

x86,kprobes: Fix optprobe trampoline to generate complete pt_regs

Currently the optprobe trampoline template code ganerate an
almost complete pt_regs on-stack, everything except regs->ss.
The 'regs->ss' points to the top of stack, which is not a
valid segment decriptor.

As same as the rethook does, complete the job by also pushing ss.

Suggested-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/164826166027.2455864.14759128090648961900.stgit@devnote2

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Merge tag 'v5.17-rc4' into for-linus

Merge with mainline to get the Intel ASoC generic helpers header and
other changes.

Merge tag 'v5.16' into next

Sync up with mainline to bring in the latest API changes.

Merge branch 'for-next' into for-linus

Pull 5.17 materials.

Signed-off-by: Takashi Iwai <tiwai@suse.de>

Merge drm/drm-next into drm-misc-next-fixes

Backmerging to bring drm-misc-next-fixes up to the latest state for
the current release cycle.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>

Merge branch 'reset/of-get-optional-exclusive' of git://git.pengutronix.de/pza/linux into timers/drivers/next

"Add optional variant of of_reset_control_get_exclusive(). If the
requested reset is not

Merge branch 'reset/of-get-optional-exclusive' of git://git.pengutronix.de/pza/linux into timers/drivers/next

"Add optional variant of of_reset_control_get_exclusive(). If the
requested reset is not specified in the device tree, this function
returns NULL instead of an error."

This dependency is needed for the Generic Timer Module (a.k.a OSTM)
support for RZ/G2L.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>

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Merge drm/drm-next into drm-intel-next

Sync up with drm-next to get v5.16-rc2.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>

Merge drm/drm-next into drm-intel-gt-next

Thomas needs the dma_resv_for_each_fence API for i915/ttm async migration
work.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>

Merge drm/drm-next into drm-misc-next

Backmerging from drm/drm-next for v5.16-rc1.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>

Merge drm/drm-fixes into drm-misc-fixes

We need -rc1 to address a breakage in drm/scheduler affecting panfrost.

Signed-off-by: Maxime Ripard <maxime@cerno.tech>

Merge remote-tracking branch 'torvalds/master' into perf/core

To pick up some tools/perf/ patches that went via tip/perf/core, such
as:

tools/perf: Add mem_hops field in perf_mem_data_src structu

Merge remote-tracking branch 'torvalds/master' into perf/core

To pick up some tools/perf/ patches that went via tip/perf/core, such
as:

tools/perf: Add mem_hops field in perf_mem_data_src structure

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

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Merge tag 'trace-v5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

Pull tracing updates from Steven Rostedt:

- kprobes: Restructured stack unwinder to show properly on x8

Merge tag 'trace-v5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

Pull tracing updates from Steven Rostedt:

- kprobes: Restructured stack unwinder to show properly on x86 when a
stack dump happens from a kretprobe callback.

- Fix to bootconfig parsing

- Have tracefs allow owner and group permissions by default (only
denying others). There's been pressure to allow non root to tracefs
in a controlled fashion, and using groups is probably the safest.

- Bootconfig memory managament updates.

- Bootconfig clean up to have the tools directory be less dependent on
changes in the kernel tree.

- Allow perf to be traced by function tracer.

- Rewrite of function graph tracer to be a callback from the function
tracer instead of having its own trampoline (this change will happen
on an arch by arch basis, and currently only x86_64 implements it).

- Allow multiple direct trampolines (bpf hooks to functions) be batched
together in one synchronization.

- Allow histogram triggers to add variables that can perform
calculations against the event's fields.

- Use the linker to determine architecture callbacks from the ftrace
trampoline to allow for proper parameter prototypes and prevent
warnings from the compiler.

- Extend histogram triggers to key off of variables.

- Have trace recursion use bit magic to determine preempt context over
if branches.

- Have trace recursion disable preemption as all use cases do anyway.

- Added testing for verification of tracing utilities.

- Various small clean ups and fixes.

* tag 'trace-v5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (101 commits)
tracing/histogram: Fix semicolon.cocci warnings
tracing/histogram: Fix documentation inline emphasis warning
tracing: Increase PERF_MAX_TRACE_SIZE to handle Sentinel1 and docker together
tracing: Show size of requested perf buffer
bootconfig: Initialize ret in xbc_parse_tree()
ftrace: do CPU checking after preemption disabled
ftrace: disable preemption when recursion locked
tracing/histogram: Document expression arithmetic and constants
tracing/histogram: Optimize division by a power of 2
tracing/histogram: Covert expr to const if both operands are constants
tracing/histogram: Simplify handling of .sym-offset in expressions
tracing: Fix operator precedence for hist triggers expression
tracing: Add division and multiplication support for hist triggers
tracing: Add support for creating hist trigger variables from literal
selftests/ftrace: Stop tracing while reading the trace file by default
MAINTAINERS: Update KPROBES and TRACING entries
test_kprobes: Move it from kernel/ to lib/
docs, kprobes: Remove invalid URL and add new reference
samples/kretprobes: Fix return value if register_kretprobe() failed
lib/bootconfig: Fix the xbc_get_info kerneldoc
...

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kprobes: treewide: Use 'kprobe_opcode_t *' for the code address in get_optimized_kprobe()

Since get_optimized_kprobe() is only used inside kprobes,
it doesn't need to use 'unsigned long' type for 'a

kprobes: treewide: Use 'kprobe_opcode_t *' for the code address in get_optimized_kprobe()

Since get_optimized_kprobe() is only used inside kprobes,
it doesn't need to use 'unsigned long' type for 'addr' parameter.
Make it use 'kprobe_opcode_t *' for the 'addr' parameter and
subsequent call of arch_within_optimized_kprobe() also should use
'kprobe_opcode_t *'.

Note that MAX_OPTIMIZED_LENGTH and RELATIVEJUMP_SIZE are defined
by byte-size, but the size of 'kprobe_opcode_t' depends on the
architecture. Therefore, we must be careful when calculating
addresses using those macros.

Link: https://lkml.kernel.org/r/163163040680.489837.12133032364499833736.stgit@devnote2

Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>

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Merge branch 'next' into for-linus

Prepare input updates for 5.15 merge window.

Merge tag 'v5.13' into next

Sync up with the mainline to get the latest parport API.

Merge tag 'v5.13-rc3' into asoc-5.13

Linux 5.13-rc3

Merge drm/drm-next into drm-intel-gt-next

Pulling in -rc2 fixes and TTM changes that next upcoming patches depend
on.

Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>

Merge tag 'v5.13-rc2' into spi-5.13

Linux 5.13-rc2

Merge branch 'fixes-rc1' into fixes

Merge drm/drm-next into drm-intel-next

Time to get back in sync...

Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

Merge drm/drm-next into drm-misc-next

Backmerging to get v5.12 fixes. Requested for vmwgfx.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>