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Change ima_inode_post_setattr() definition, so that it can be registered as
implementation of the inode_post_setattr hook (to be introduced).
Signed-off-by: Roberto Sassu <roberto.sassu@huawei.com>
Reviewed-by: Stefan Berger <stefanb@linux.ibm.com>
Reviewed-by: Casey Schaufler <casey@schaufler-ca.com>
Reviewed-by: Mimi Zohar <zohar@linux.ibm.com>
Acked-by: Mimi Zohar <zohar@linux.ibm.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
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git://anongit.freedesktop.org/drm/drm-misc into drm-next
drm-misc-next for v6.9:
UAPI Changes:
Cross-subsystem Changes:
arch:
- powerpc/ps3: select CONFIG_VIDEO
Core Changes:
ci:
- msm: fix apq8016 runner
display:
- use newer DRM print helpers
documentation:
- fix typos
print:
- add device-specific error and debug printers
sysfb:
- set Linux parent device for firmware framebuffer
tests:
- mm: use newer DRM print helpers
Driver Changes:
bridge:
- switch to ->read_edid callback throughout the bridge
drivers
- remove old ->get_edid callback
i915:
- use newer DRM print helpers
lima:
- improve stability by fixes to error handling and recovery
mediathek:
- switch to ->read_edid callback
msm:
- switch to ->read_edid callback
omap:
- switch to ->read_edid callback
panel:
- add Powkiddy RGB10MAX3 plus DT bindings
- st7703: support panel rotation plus DT bindings
rockchip:
- DT bindings: remove port, add power-domains
xe:
- use newer DRM print helpers
xlnx:
- switch to ->read_edid callback
Signed-off-by: Dave Airlie <airlied@redhat.com>
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# gpg: Signature made Thu 15 Feb 2024 23:22:02 AEST
# gpg: using RSA key 7217FBAC8CE9CF6344A168E5680DC11D530B7A23
# gpg: Can't check signature: No public key
From: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20240215132610.GA1464@localhost.localdomain
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Stanislaw Gruszka says:
====================
thermal/netlink/intel_hfi: Enable HFI feature only when required
The patchset introduces a new genetlink family bind/unbind callbacks
and thermal/netlink notifications, which allow drivers to send netlink
multicast events based on the presence of actual user-space consumers.
This functionality optimizes resource usage by allowing disabling
of features when not needed.
v1: https://lore.kernel.org/linux-pm/20240131120535.933424-1-stanislaw.gruszka@linux.intel.com//
v2: https://lore.kernel.org/linux-pm/20240206133605.1518373-1-stanislaw.gruszka@linux.intel.com/
v3: https://lore.kernel.org/linux-pm/20240209120625.1775017-1-stanislaw.gruszka@linux.intel.com/
====================
Link: https://lore.kernel.org/r/20240212161615.161935-1-stanislaw.gruszka@linux.intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Add genetlink family bind()/unbind() callbacks when adding/removing
multicast group to/from netlink client socket via setsockopt() or
bind() syscall.
They can be used to track if consumers of netlink multicast messages
emerge or disappear. Thus, a client implementing callbacks, can now
send events only when there are active consumers, preventing unnecessary
work when none exist.
Suggested-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Link: https://lore.kernel.org/r/20240212161615.161935-2-stanislaw.gruszka@linux.intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The powerpc toolchain keeps a copy of the HWCAP bit masks in the TCB
for fast access by the __builtin_cpu_supports() built-in function. The
TCB space for the HWCAP entries - which are created in pairs - is an ABI
extension, so waiting to create the space for HWCAP3 and HWCAP4 until
they are needed is problematic. Define AT_HWCAP3 and AT_HWCAP4 in the
generic uapi header so they can be used in glibc to reserve space in the
powerpc TCB for their future use.
I scanned through the Linux and GLIBC source codes looking for unused
AT_* values and 29 and 30 did not seem to be used, so they are what I
went with.
Signed-off-by: Peter Bergner <bergner@linux.ibm.com>
Acked-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Acked-by: Nicholas Piggin <npiggin@gmail.com>
Acked-by: Szabolcs Nagy <szabolcs.nagy@arm.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/a406b535-dc55-4856-8ae9-5a063644a1af@linux.ibm.com
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git://anongit.freedesktop.org/drm/drm-intel into drm-next
UAPI Changes:
- Add GuC submission interface version query (Tvrtko Ursulin)
Driver Changes:
Fixes/improvements/new stuff:
- Atomically invalidate userptr on mmu-notifier (Jonathan Cavitt)
- Update handling of MMIO triggered reports (Umesh Nerlige Ramappa)
- Don't make assumptions about intel_wakeref_t type (Jani Nikula)
- Add workaround 14019877138 [xelpg] (Tejas Upadhyay)
- Allow for very slow HuC loading [huc] (John Harrison)
- Flush context destruction worker at suspend [guc] (Alan Previn)
- Close deregister-context race against CT-loss [guc] (Alan Previn)
- Avoid circular locking issue on busyness flush [guc] (John Harrison)
- Use rc6.supported flag from intel_gt for rc6_enable sysfs (Juan Escamilla)
- Reflect the true and current status of rc6_enable (Juan Escamilla)
- Wake GT before sending H2G message [mtl] (Vinay Belgaumkar)
- Restart the heartbeat timer when forcing a pulse (John Harrison)
Future platform enablement:
- Extend driver code of Xe_LPG to Xe_LPG+ [xelpg] (Harish Chegondi)
- Extend some workarounds/tuning to gfx version 12.74 [xelpg] (Matt Roper)
Miscellaneous:
- Reconcile Excess struct member kernel-doc warnings (Randy Dunlap)
- Change wa and EU_PERF_CNTL registers to MCR type [guc] (Shuicheng Lin)
- Add flex arrays to struct i915_syncmap (Erick Archer)
- Increasing the sleep time for live_rc6_manual [selftests] (Anirban Sk)
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/Zc3iIVsiAwo+bu10@tursulin-desk
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Cross-merge networking fixes after downstream PR.
No conflicts.
Adjacent changes:
net/core/dev.c
9f30831390ed ("net: add rcu safety to rtnl_prop_list_size()")
723de3ebef03 ("net: free altname using an RCU callback")
net/unix/garbage.c
11498715f266 ("af_unix: Remove io_uring code for GC.")
25236c91b5ab ("af_unix: Fix task hung while purging oob_skb in GC.")
drivers/net/ethernet/renesas/ravb_main.c
ed4adc07207d ("net: ravb: Count packets instead of descriptors in GbEth RX path"
)
c2da9408579d ("ravb: Add Rx checksum offload support for GbEth")
net/mptcp/protocol.c
bdd70eb68913 ("mptcp: drop the push_pending field")
28e5c1380506 ("mptcp: annotate lockless accesses around read-mostly fields")
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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1 usec is not as short as it used to be, and it makes sense to allow 0
for a busy poll timeout - this means just do one loop to check if we
have anything available. Add a separate ->napi_enabled to check if napi
has been enabled or not.
While at it, move the writing of the ctx napi values after we've copied
the old values back to userspace. This ensures that if the call fails,
we'll be in the same state as we were before, rather than some
indeterminate state.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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git://anongit.freedesktop.org/drm/drm-intel into drm-next
drm/i915 feature pull for v6.9:
Features and functionality:
- Early transport for panel replay and PSR (Jouni)
- New ARL PCI IDs (Matt)
- DP TPS4 PHY test pattern support (Khaled)
Refactoring and cleanups:
- Unify and improve VSC SDP for PSR and non-PSR cases (Jouni)
- Refactor memory regions and improve debug logging (Ville)
- Rework global state serialization (Ville)
- Remove unused CDCLK divider fields (Gustavo)
- Unify HDCP connector logging format (Jani)
- Use display instead of graphics version in display code (Jani)
- Move VBT and opregion debugfs next to the implementation (Jani)
- Abstract opregion interface, use opaque type (Jani)
Fixes:
- Fix MTL stolen memory access (Ville)
- Fix initial display plane readout for MTL (Ville)
- Fix HPD handling during driver init/shutdown (Imre)
- Cursor vblank evasion fixes (Ville)
- Various VSC SDP fixes (Jouni)
- Allow PSR mode changes without full modeset (Jouni)
- Fix CDCLK sanitization on module load for Xe2_LPD (Gustavo)
- Fix the max DSC bpc supported by the source (Ankit)
- Add missing LNL ALPM AUX wake configuration (Jouni)
- Cx0 PHY state readout and verify fixes (Mika)
- Fix PSR (panel replay) debugfs for MST connectors (Imre)
- Fail HDCP repeater authentication if Type1 device not present (Suraj)
- Ratelimit debug logging in vm_fault_ttm (Nirmoy)
- Use a fake PCH for MTL because south display is not on the PCH (Haridhar)
- Disable DSB for Xe driver for now (José)
- Fix some LNL display register changes (Lucas)
- Fix build on ChromeOS (Paz Zcharya)
- Preserve current shared DPLL for fastsets on Type-C ports (Ville)
- Fix state checker warnings for MG/TC/TBT PLLs (Ville)
- Fix HDCP repeater ctl register value on errors (Jani)
- Allow FBC with CCS modifiers on SKL+ (Ville)
- Fix HDCP GGTT pinning (Ville)
DRM core changes:
- Add ratelimited drm dbg print (Nirmoy)
- DPCD PSR early transport macro (Jouni)
Merges:
- Backmerge drm-next to bring Xe driver to drm-intel-next (Jani)
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/87cyt8cxsh.fsf@intel.com
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acpi_handle_path() will soon be required for node name comparison
elsewhere in ACPI framework. Remove the static keyword and add the
prototype to include/linux/acpi.h.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Commit c92a6b5d6335 ("scsi: core: Query VPD size before getting full
page") removed the logic which checks whether a VPD page is present on
the supported pages list before asking for the page itself. That was
done because SPC helpfully states "The Supported VPD Pages VPD page
list may or may not include all the VPD pages that are able to be
returned by the device server". Testing had revealed a few devices
that supported some of the 0xBn pages but didn't actually list them in
page 0.
Julian Sikorski bisected a problem with his drive resetting during
discovery to the commit above. As it turns out, this particular drive
firmware will crash if we attempt to fetch page 0xB9.
Various approaches were attempted to work around this. In the end,
reinstating the logic that consults VPD page 0 before fetching any
other page was the path of least resistance. A firmware update for the
devices which originally compelled us to remove the check has since
been released.
Link: https://lore.kernel.org/r/20240214221411.2888112-1-martin.petersen@oracle.com
Fixes: c92a6b5d6335 ("scsi: core: Query VPD size before getting full page")
Cc: stable@vger.kernel.org
Cc: Bart Van Assche <bvanassche@acm.org>
Reported-by: Julian Sikorski <belegdol@gmail.com>
Tested-by: Julian Sikorski <belegdol@gmail.com>
Reviewed-by: Lee Duncan <lee.duncan@suse.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Including fixes from can, wireless and netfilter.
Current release - regressions:
- af_unix: fix task hung while purging oob_skb in GC
- pds_core: do not try to run health-thread in VF path
Current release - new code bugs:
- sched: act_mirred: don't zero blockid when net device is being
deleted
Previous releases - regressions:
- netfilter:
- nat: restore default DNAT behavior
- nf_tables: fix bidirectional offload, broken when unidirectional
offload support was added
- openvswitch: limit the number of recursions from action sets
- eth: i40e: do not allow untrusted VF to remove administratively set
MAC address
Previous releases - always broken:
- tls: fix races and bugs in use of async crypto
- mptcp: prevent data races on some of the main socket fields, fix
races in fastopen handling
- dpll: fix possible deadlock during netlink dump operation
- dsa: lan966x: fix crash when adding interface under a lag when some
of the ports are disabled
- can: j1939: prevent deadlock by changing j1939_socks_lock to rwlock
Misc:
- a handful of fixes and reliability improvements for selftests
- fix sysfs documentation missing net/ in paths
- finish the work of squashing the missing MODULE_DESCRIPTION()
warnings in networking"
* tag 'net-6.8-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (92 commits)
net: fill in MODULE_DESCRIPTION()s for missing arcnet
net: fill in MODULE_DESCRIPTION()s for mdio_devres
net: fill in MODULE_DESCRIPTION()s for ppp
net: fill in MODULE_DESCRIPTION()s for fddik/skfp
net: fill in MODULE_DESCRIPTION()s for plip
net: fill in MODULE_DESCRIPTION()s for ieee802154/fakelb
net: fill in MODULE_DESCRIPTION()s for xen-netback
net: ravb: Count packets instead of descriptors in GbEth RX path
pppoe: Fix memory leak in pppoe_sendmsg()
net: sctp: fix skb leak in sctp_inq_free()
net: bcmasp: Handle RX buffer allocation failure
net-timestamp: make sk_tskey more predictable in error path
selftests: tls: increase the wait in poll_partial_rec_async
ice: Add check for lport extraction to LAG init
netfilter: nf_tables: fix bidirectional offload regression
netfilter: nat: restore default DNAT behavior
netfilter: nft_set_pipapo: fix missing : in kdoc
igc: Remove temporary workaround
igb: Fix string truncation warnings in igb_set_fw_version
can: netlink: Fix TDCO calculation using the old data bittiming
...
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git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull xen fixes from Juergen Gross:
"Fixes and simple cleanups:
- use a proper flexible array instead of a one-element array in order
to avoid array-bounds sanitizer errors
- add NULL pointer checks after allocating memory
- use memdup_array_user() instead of open-coding it
- fix a rare race condition in Xen event channel allocation code
- make struct bus_type instances const
- make kerneldoc inline comments match reality"
* tag 'for-linus-6.8a-rc5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
xen/events: close evtchn after mapping cleanup
xen/gntalloc: Replace UAPI 1-element array
xen: balloon: make balloon_subsys const
xen: pcpu: make xen_pcpu_subsys const
xen/privcmd: Use memdup_array_user() in alloc_ioreq()
x86/xen: Add some null pointer checking to smp.c
xen/xenbus: document will_handle argument for xenbus_watch_path()
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In commit 4356e9f841f7 ("work around gcc bugs with 'asm goto' with
outputs") I did the gcc workaround unconditionally, because the cause of
the bad code generation wasn't entirely clear.
In the meantime, Jakub Jelinek debugged the issue, and has come up with
a fix in gcc [2], which also got backported to the still maintained
branches of gcc-11, gcc-12 and gcc-13.
Note that while the fix technically wasn't in the original gcc-14
branch, Jakub says:
"while it is true that no GCC 14 snapshots until today (or whenever the
fix will be committed) have the fix, for GCC trunk it is up to the
distros to use the latest snapshot if they use it at all and would
allow better testing of the kernel code without the workaround, so
that if there are other issues they won't be discovered years later.
Most userland code doesn't actually use asm goto with outputs..."
so we will consider gcc-14 to be fixed - if somebody is using gcc
snapshots of the gcc-14 before the fix, they should upgrade.
Note that while the bug goes back to gcc-11, in practice other gcc
changes seem to have effectively hidden it since gcc-12.1 as per a
bisect by Jakub. So even a gcc-14 snapshot without the fix likely
doesn't show actual problems.
Also, make the default 'asm_goto_output()' macro mark the asm as
volatile by hand, because of an unrelated gcc issue [1] where it doesn't
match the documented behavior ("asm goto is always volatile").
Link: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103979 [1]
Link: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113921 [2]
Link: https://lore.kernel.org/all/20240208220604.140859-1-seanjc@google.com/
Requested-by: Jakub Jelinek <jakub@redhat.com>
Cc: Uros Bizjak <ubizjak@gmail.com>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Sean Christopherson <seanjc@google.com>
Cc: Andrew Pinski <quic_apinski@quicinc.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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There are plenty of issues with the kernel documentation here:
- misspelled word "sequence"
- different style of returned value descriptions
- missed Return sections
- unaligned style of ASCII / NUL-terminated / etc
- wrong function references
Fix all these.
Link: https://lkml.kernel.org/r/20240215152506.598340-1-andriy.shevchenko@linux.intel.com
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
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Update header inclusions to follow IWYU (Include What You Use)
principle.
Link: https://lkml.kernel.org/r/20240215142255.400264-1-andriy.shevchenko@linux.intel.com
Cc: "Matthew Wilcox (Oracle)" <willy@infradead.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
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Some platform-MSI implementations require that power management is
redirected to the underlying interrupt chip device. To make this work
with per device MSI domains provide a new feature flag and let the
core code handle the setup of dev->pm_dev when set during device MSI
domain creation.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20240127161753.114685-14-apatel@ventanamicro.com
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To support wire to MSI bridges proper in the MSI core infrastructure it is
required to have separate allocation/free interfaces which can be invoked
from the regular irqdomain allocaton/free functions.
The mechanism for allocation is:
- Allocate the next free MSI descriptor index in the domain
- Store the hardware interrupt number and the trigger type
which was extracted by the irqdomain core from the firmware spec
in the MSI descriptor device cookie so it can be retrieved by
the underlying interrupt domain and interrupt chip
- Use the regular MSI allocation mechanism for the newly allocated
index which returns a fully initialized Linux interrupt on succes
This works because:
- the domains have a fixed size
- each hardware interrupt is only allocated once
- the underlying domain does not care about the MSI index it only cares
about the hardware interrupt number and the trigger type
The free function looks up the MSI index in the MSI descriptor of the
provided Linux interrupt number and uses the regular index based free
functions of the MSI core.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20240127161753.114685-12-apatel@ventanamicro.com
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To support wire to MSI domains via the MSI infrastructure it is required to
use the firmware node of the device which implements this for creating the
MSI domain. Otherwise the existing firmware match mechanisms to find the
correct irqdomain for a wired interrupt which is connected to a wire to MSI
bridge would fail.
This cannot be used for the general case because not all devices provide
firmware nodes and all regular per device MSI domains are directly
associated to the device and have not be searched for.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20240127161753.114685-11-apatel@ventanamicro.com
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Provide a domain bus token for the upcoming support for wire to MSI device
domains so the domain can be distinguished from regular device MSI domains.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20240127161753.114685-10-apatel@ventanamicro.com
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irq_create_fwspec_mapping() requires translation of the firmware spec to a
hardware interrupt number and the trigger type information.
Wired interrupts which are connected to a wire to MSI bridge, like MBIGEN
are allocated that way. So far MBIGEN provides a regular irqdomain which
then hooks backwards into the MSI infrastructure. That's an unholy mess and
will be replaced with per device MSI domains which are regular MSI domains.
Interrupts on MSI domains are not supported by irq_create_fwspec_mapping(),
but for making the wire to MSI bridges sane it makes sense to provide a
special allocation/free interface in the MSI infrastructure. That avoids
the backdoors into the core MSI allocation code and just shares all the
regular MSI infrastructure.
Provide an optional translation callback in msi_domain_ops which can be
utilized by these wire to MSI bridges. No other MSI domain should provide a
translation callback. The default translation callback of the MSI
irqdomains will warn when it is invoked on a non-prepared MSI domain.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20240127161753.114685-8-apatel@ventanamicro.com
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Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Provide functions to create and remove per device MSI domains which replace
the platform-MSI domains. The new model is that each of the devices which
utilize platform-MSI gets now its private MSI domain which is "customized"
in size and with a device specific function to write the MSI message into
the device.
This is the same functionality as platform-MSI but it avoids all the down
sides of platform MSI, i.e. the extra ID book keeping, the special data
structure in the msi descriptor. Further the domains are only created when
the devices are really in use, so the burden is on the usage and not on the
infrastructure.
Fill in the domain template and provide two functions to init/allocate and
remove a per device MSI domain.
Until all users and parent domain providers are converted, the init/alloc
function invokes the original platform-MSI code when the irqdomain which is
associated to the device does not provide MSI parent functionality yet.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20240127161753.114685-6-apatel@ventanamicro.com
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Add a new domain bus token to prepare for device MSI which aims to replace
the existing platform MSI maze.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20240127161753.114685-5-apatel@ventanamicro.com
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Supporting per device MSI domains on ARM64, RISC-V and the zoo of
interrupt mechanisms needs a bit more information than what the
initial x86 implementation provides.
Add the following fields:
- required_flags: The flags which a parent domain requires to be set
- bus_select_token: The bus token of the parent domain for select()
- bus_select_mask: A bitmask of supported child domain bus types
This allows to provide library functions which can be shared between
various interrupt chip implementations and avoids replicating mostly
similar code all over the place.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20240127161753.114685-4-apatel@ventanamicro.com
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RISC-V was lacking a membarrier implementation for the store/fetch
ordering, which is a bit tricky because of the deferred icache flushing
we use in RISC-V.
* b4-shazam-merge:
membarrier: riscv: Provide core serializing command
locking: Introduce prepare_sync_core_cmd()
membarrier: Create Documentation/scheduler/membarrier.rst
membarrier: riscv: Add full memory barrier in switch_mm()
Link: https://lore.kernel.org/r/20240131144936.29190-1-parri.andrea@gmail.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
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Introduce an architecture function that architectures can use to set
up ("prepare") SYNC_CORE commands.
The function will be used by RISC-V to update its "deferred icache-
flush" data structures (icache_stale_mask).
Architectures defining prepare_sync_core_cmd() static inline need to
select ARCH_HAS_PREPARE_SYNC_CORE_CMD.
Suggested-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Andrea Parri <parri.andrea@gmail.com>
Reviewed-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Link: https://lore.kernel.org/r/20240131144936.29190-4-parri.andrea@gmail.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
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Fix misspellings of "hardware".
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Maxime Ripard <mripard@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/94c9b76ee906d1b790dfcc435f4221b1197df586.1708003402.git.geert+renesas@glider.be
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Pull the latest 6.8 stuff into devel branch for further development.
Fixed the trivial merge conflict for HD-audio Realtek stuff.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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In RFC 8981, REGEN_ADVANCE cannot be less than 2 seconds, and the RFC
does not permit the creation of temporary addresses with lifetimes
shorter than that:
> When processing a Router Advertisement with a
> Prefix Information option carrying a prefix for the purposes of
> address autoconfiguration (i.e., the A bit is set), the host MUST
> perform the following steps:
> 5. A temporary address is created only if this calculated preferred
> lifetime is greater than REGEN_ADVANCE time units.
However, some users want to change their IPv6 address as frequently as
possible regardless of the RFC's arbitrary minimum lifetime. For the
benefit of those users, add a regen_min_advance sysctl parameter that
can be set to below or above 2 seconds.
Link: https://datatracker.ietf.org/doc/html/rfc8981
Signed-off-by: Alex Henrie <alexhenrie24@gmail.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Since commit d492cc2573a0 ("driver core: device.h: make struct
bus_type a const *"), the driver core can properly handle constant
struct bus_type, move the mdio_bus_type variable to be a constant
structure as well, placing it into read-only memory which can not be
modified at runtime.
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ricardo B. Marliere <ricardo@marliere.net>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20240213-bus_cleanup-mdio-v1-1-f9e799da7fda@marliere.net
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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This function allocates a struct pwm_chip and driver data. Compared to
the status quo the split into pwm_chip and driver data is new, otherwise
it doesn't change anything relevant (yet).
The intention is that after all drivers are switched to use this
allocation function, its possible to add a struct device to struct
pwm_chip to properly track the latter's lifetime without touching all
drivers again. Proper lifetime tracking is a necessary precondition to
introduce character device support for PWMs (that implements atomic
setting and doesn't suffer from the sysfs overhead of the /sys/class/pwm
userspace support).
The new function pwmchip_priv() (obviously?) only works for chips
allocated with pwmchip_alloc().
Link: https://lore.kernel.org/r/9577d6053a5a52536057dc8654ff567181c2da82.1707900770.git.u.kleine-koenig@pengutronix.de
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
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These functions are useful to store and query driver private data
depending on the pwm_chip. After struct pwm_chip got its own struct
device, this can make use of dev_get_drvdata() and dev_set_drvdata() on
that device. These functions are required already now to convert
drivers to pwmchip_alloc() which must happen before changing
pwm_chip::dev.
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/67514cdf29d29bd8b4ad8d44fac87f6ae6dca1e5.1707900770.git.u.kleine-koenig@pengutronix.de
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
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Currently a pwm_chip stores in its struct device *dev member a pointer
to the parent device. Preparing a change that embeds a full struct
device in struct pwm_chip, this accessor function should be used in all
drivers directly accessing chip->dev now. This way struct pwm_chip and
this new function can be changed without having to touch all drivers in
the same change set.
Make use of this function in the framework's core sources.
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/cc30090d2f9762bed9854a55612144bccc910781.1707900770.git.u.kleine-koenig@pengutronix.de
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
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Apart from the two of_xlate implementations this member is write-only.
In the of_xlate functions of_pwm_xlate_with_flags() and
of_pwm_single_xlate() it's more sensible to check for args->args_count
because this is what is actually used in the device tree.
Acked-by: Douglas Anderson <dianders@chromium.org>
Link: https://lore.kernel.org/r/53d8c545aa8f79a920358be9e72e382b3981bdc4.1704835845.git.u.kleine-koenig@pengutronix.de
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
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Even if that's the same as IEEE80211_MAX_SSID_LEN, we really
should just use IEEE80211_MAX_MESH_ID_LEN for mesh, rather
than having the BUILD_BUG_ON()s.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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The documentation for default_values mentions high/low which can be
confusing, particularly when the ACTIVE_LOW flag is set.
Replace high/low with active/inactive to clarify that the values are
logical not physical.
Similarly, clarify the interpretation of values in struct gpiohandle_data.
Signed-off-by: Kent Gibson <warthog618@gmail.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux
Pull MIPS fixes from Thomas Bogendoerfer:
- Fix for broken ipv6 checksums
- Fix handling of exceptions in delay slots
* tag 'mips-fixes_6.8_2' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux:
mm/memory: Use exception ip to search exception tables
MIPS: Clear Cause.BD in instruction_pointer_set
ptrace: Introduce exception_ip arch hook
MIPS: Add 'memory' clobber to csum_ipv6_magic() inline assembler
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Extend the list of ADL-N PCI IDs to contain two new entries.
Bspec: 68397
Signed-off-by: Gustavo Sousa <gustavo.sousa@intel.com>
Reviewed-by: Dnyaneshwar Bhadane <dnyaneshwar.bhadane@intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240214144629.106702-2-gustavo.sousa@intel.com
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It has been observed that some USB/UAS devices return generic properties
hardcoded in firmware for mode pages for a period of time after a device
has been discovered. The reported properties are either garbage or they do
not accurately reflect the characteristics of the physical storage device
attached in the case of a bridge.
Prior to commit 1e029397d12f ("scsi: sd: Reorganize DIF/DIX code to
avoid calling revalidate twice") we would call revalidate several
times during device discovery. As a result, incorrect values would
eventually get replaced with ones accurately describing the attached
storage. When we did away with the redundant revalidate pass, several
cases were reported where devices reported nonsensical values or would
end up in write-protected state.
An initial attempt at addressing this issue involved introducing a
delayed second revalidate invocation. However, this approach still
left some devices reporting incorrect characteristics.
Tasos Sahanidis debugged the problem further and identified that
introducing a READ operation prior to MODE SENSE fixed the problem and that
it wasn't a timing issue. Issuing a READ appears to cause the devices to
update their state to reflect the actual properties of the storage
media. Device properties like vendor, model, and storage capacity appear to
be correctly reported from the get-go. It is unclear why these devices
defer populating the remaining characteristics.
Match the behavior of a well known commercial operating system and
trigger a READ operation prior to querying device characteristics to
force the device to populate the mode pages.
The additional READ is triggered by a flag set in the USB storage and
UAS drivers. We avoid issuing the READ for other transport classes
since some storage devices identify Linux through our particular
discovery command sequence.
Link: https://lore.kernel.org/r/20240213143306.2194237-1-martin.petersen@oracle.com
Fixes: 1e029397d12f ("scsi: sd: Reorganize DIF/DIX code to avoid calling revalidate twice")
Cc: stable@vger.kernel.org
Reported-by: Tasos Sahanidis <tasos@tasossah.com>
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Tested-by: Tasos Sahanidis <tasos@tasossah.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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DRAM row retirement depends on model-specific information that is best
done within the AMD Address Translation Library.
Export a generic wrapper function for other modules to use. Add any
model-specific helpers here.
Signed-off-by: Yazen Ghannam <yazen.ghannam@amd.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Link: https://lore.kernel.org/r/20240214033516.1344948-2-yazen.ghannam@amd.com
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The context-switch-time check for RCU Tasks Trace quiescence expects
current->trc_reader_special.b.need_qs to be zero, and if so, updates
it to TRC_NEED_QS_CHECKED. This is backwards, because if this value
is zero, there is no RCU Tasks Trace grace period in flight, an thus
no need for a quiescent state. Instead, when a grace period starts,
this field is set to TRC_NEED_QS.
This commit therefore changes the check from zero to TRC_NEED_QS.
Reported-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Tested-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Boqun Feng <boqun.feng@gmail.com>
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With commit '6a010a49b63a ("cgroup: Make !percpu threadgroup_rwsem
operations optional")' usage of rcu_sync_enter_start is removed.
So this function can also be removed.
In the words of Oleg Nesterov:
__rcu_sync_enter(wait => false) is a better alternative if
someone needs rcu_sync_enter_start() again.
Link: https://lore.kernel.org/all/20220725121208.GB28662@redhat.com/
Signed-off-by: Onkarnath <onkarnath.1@samsung.com>
Signed-off-by: Maninder Singh <maninder1.s@samsung.com>
Acked-by: Oleg Nesterov <oleg@redhat.com>
Acked-by: Tejun Heo <tj@kernel.org>
Reviewed-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Boqun Feng <boqun.feng@gmail.com>
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Add a new query to the GuC submission interface version.
Mesa intends to use this information to check for old firmware versions
with a known bug where using the render and compute command streamers
simultaneously can cause GPU hangs due issues in firmware scheduling.
Based on patches from Vivaik and Joonas.
Compile tested only.
v2:
* Added branch version.
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Kenneth Graunke <kenneth@whitecape.org>
Cc: Jose Souza <jose.souza@intel.com>
Cc: Sagar Ghuge <sagar.ghuge@intel.com>
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Cc: John Harrison <John.C.Harrison@Intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Vivaik Balasubrawmanian <vivaik.balasubrawmanian@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Reviewed-by: José Roberto de Souza <jose.souza@intel.com>
Tested-by: José Roberto de Souza <jose.souza@intel.com>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240208082510.1363268-1-tvrtko.ursulin@linux.intel.com
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http://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into char-misc-linus
Jonathan writes:
IIO: 1st set of fixes for the 6.8 cycle
Usual mixed bag of issues introduced this cycle and fixes for long term
issues that have been identified recently + one case where I messed up
a merge resolution and dropped the build file changes.
Most important is the userspace ABI fix for the iio_modifier enum
where we accidentally added new entries in the middle rather than at
the end.
IIO Core
- Close a memory leak in an error path.
- Move LIGHT_UVA and LIGHT_UVB definitions to end of the iio_modifier
enum to avoid breaking older userspace. (not yet in a released kernel
thankfully).
adi,adis
- Fix a DMA buffer alignment issue that was missing in series that fixed
these across IIO.
adi,ad-sigma-delta
- Fix a DMA buffer alignment issue that was missing in series that fixed
these across IIO.
adi,ad4130
- Zero init remaining fields of clock init data.
- Only set GPIO control bits on pins that aren't in use for anything else.
adi,ad5933
- Fix an old bug due to type mismatch. This is a rare device so good to
get some new test coverage.
adi,ad7091r
- Use right variable for an error return code.
bosch,bma400
- Add missing CONFIG_REGMAP_I2C dependency.
bosch,bmp280:
- Add missing bmp085 ID to the SPI table to avoid mismatch with the
of_device_id table.
hid-sensors:
- Avoid returning an error for timestamp read back that succeeds.
pni,rm3100
- Check value read from RM31000_REG_TMRC register is valid before using
it. Hardening to avoid a real world issue seen on some faulty hardware.
st,st-sensors
- Fix a DMA buffer alignment issue that was missing in series that fixed
these across IIO.
ti,hdc3020
- Add missing Kconfig and Makefile entrees accidentally dropped when patches
were applied.
- Fix wrong temperature offset (negated)
* tag 'iio-fixes-for-6.8a' of http://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio:
iio: adc: ad4130: only set GPIO_CTRL if pin is unused
iio: adc: ad4130: zero-initialize clock init data
iio: accel: bma400: Fix a compilation problem
iio: commom: st_sensors: ensure proper DMA alignment
iio: hid-sensor-als: Return 0 for HID_USAGE_SENSOR_TIME_TIMESTAMP
iio: move LIGHT_UVA and LIGHT_UVB to the end of iio_modifier
staging: iio: ad5933: fix type mismatch regression
iio: humidity: hdc3020: fix temperature offset
iio: adc: ad7091r8: Fix error code in ad7091r8_gpio_setup()
iio: adc: ad_sigma_delta: ensure proper DMA alignment
iio: imu: adis: ensure proper DMA alignment
iio: humidity: hdc3020: Add Makefile, Kconfig and MAINTAINERS entry
iio: imu: bno055: serdev requires REGMAP
iio: magnetometer: rm3100: add boundary check for the value read from RM3100_REG_TMRC
iio: pressure: bmp280: Add missing bmp085 to SPI id table
iio: core: fix memleak in iio_device_register_sysfs
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dev_base_lock is not needed anymore, all remaining users also hold RTNL.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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dev_base_lock is going away, add netdev_set_operstate() helper
so that hsr does not have to know core internals.
Remove dev_base_lock acquisition from rfc2863_policy()
v3: use an "unsigned int" for dev->operstate,
so that try_cmpxchg() can work on all arches.
( https://lore.kernel.org/oe-kbuild-all/202402081918.OLyGaea3-lkp@intel.com/ )
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Prepares things so that dev->reg_state reads can be lockless,
by adding WRITE_ONCE() on write side.
READ_ONCE()/WRITE_ONCE() do not support bitfields.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Add an ioctl for getting and setting epoll_params. User programs can use
this ioctl to get and set the busy poll usec time, packet budget, and
prefer busy poll params for a specific epoll context.
Parameters are limited:
- busy_poll_usecs is limited to <= s32_max
- busy_poll_budget is limited to <= NAPI_POLL_WEIGHT by unprivileged
users (!capable(CAP_NET_ADMIN))
- prefer_busy_poll must be 0 or 1
- __pad must be 0
Signed-off-by: Joe Damato <jdamato@fastly.com>
Acked-by: Stanislav Fomichev <sdf@google.com>
Reviewed-by: Jiri Slaby <jirislaby@kernel.org>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Correct a spello/typo in comments.
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: dri-devel@lists.freedesktop.org
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20240213224219.10644-1-rdunlap@infradead.org
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