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2023-03-30KVM: arm64: timers: Abstract per-timer IRQ accessMarc Zyngier
As we are about to move the location of the per-timer IRQ into the VM structure, abstract the location of the IRQ behind an accessor. This will make the repainting sligntly less painful. Reviewed-by: Colton Lewis <coltonlewis@google.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20230330174800.2677007-11-maz@kernel.org
2023-03-30KVM: arm64: timers: Rationalise per-vcpu timer initMarc Zyngier
The way we initialise our timer contexts may be satisfactory for two timers, but will be getting pretty annoying with four. Cleanup the whole thing by removing the code duplication and getting rid of unused IRQ configuration elements. Reviewed-by: Colton Lewis <coltonlewis@google.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20230330174800.2677007-10-maz@kernel.org
2023-03-30KVM: arm64: timers: Allow userspace to set the global counter offsetMarc Zyngier
And this is the moment you have all been waiting for: setting the counter offset from userspace. We expose a brand new capability that reports the ability to set the offset for both the virtual and physical sides. In keeping with the architecture, the offset is expressed as a delta that is substracted from the physical counter value. Once this new API is used, there is no going back, and the counters cannot be written to to set the offsets implicitly (the writes are instead ignored). Reviewed-by: Colton Lewis <coltonlewis@google.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20230330174800.2677007-8-maz@kernel.org
2023-03-30KVM: arm64: timers: Use CNTPOFF_EL2 to offset the physical timerMarc Zyngier
With ECV and CNTPOFF_EL2, it is very easy to offer an offset for the physical timer. So let's do just that. Nothing can set the offset yet, so this should have no effect whatsoever (famous last words...). Reviewed-by: Colton Lewis <coltonlewis@google.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20230330174800.2677007-5-maz@kernel.org
2023-03-30KVM: arm64: timers: Use a per-vcpu, per-timer accumulator for fractional nsMarc Zyngier
Instead of accumulating the fractional ns value generated every time we compute a ns delta in a global variable, use a per-vcpu, per-timer variable. This keeps the fractional ns local to the timer instead of contributing to any odd, unrelated timer. Reviewed-by: Colton Lewis <coltonlewis@google.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20230330174800.2677007-2-maz@kernel.org
2023-03-30Revert "drm/scheduler: track GPU active time per entity"Lucas Stach
This reverts commit df622729ddbf as it introduces a use-after-free, which isn't easy to fix without going back to the design drawing board. Reported-by: Danilo Krummrich <dakr@redhat.com> Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
2023-03-30HID: Recognize "Digitizer" as a valid input applicationJason Gerecke
"Digitizer" is a generic usage that may be used by various devices but which is particularly used by non-display pen tablets. This patch adds the usage to the list of values matched by the IS_INPUT_APPLICATION() macro that determines if an input device should be allocated or not. Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com> Reviewed-by: Ping Cheng <ping.cheng@wacom.com> Link: https://lore.kernel.org/r/20221019151832.44522-1-jason.gerecke@wacom.com Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
2023-03-30ALSA: ac97: Define dummy functions for snd_ac97_suspend() and resume()Takashi Iwai
For allowing the build without CONFIG_PM, add definitions of dummy functions for snd_ac97_suspend() and snd_ac97_resume() without CONFIG_PM, too. Link: https://lore.kernel.org/r/20230330132847.12882-1-tiwai@suse.de Reviewed-by: Jaroslav Kysela <perex@perex.cz> Reviewed-by: Tasos Sahanidis <tasos@tasossah.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-03-30iov_iter: overlay struct iovec and ubuf/lenJens Axboe
Add an internal struct iovec that we can return as a pointer, with the fields of the iovec overlapping with the ITER_UBUF ubuf and length fields. Then we can have iter_iov() check for the appropriate type, and return &iter->__ubuf_iovec for ITER_UBUF and iter->__iov for ITER_IOVEC and things will magically work out for a single segment request regardless of either type. Signed-off-by: Jens Axboe <axboe@kernel.dk>
2023-03-30iov_iter: set nr_segs = 1 for ITER_UBUFJens Axboe
To avoid needing to check if a given user backed iov_iter is of type ITER_IOVEC or ITER_UBUF, set the number of segments for the ITER_UBUF case to 1 as we're carrying a single segment. Signed-off-by: Jens Axboe <axboe@kernel.dk>
2023-03-30iov_iter: remove iov_iter_iovec()Jens Axboe
No more users are left of this function. Signed-off-by: Jens Axboe <axboe@kernel.dk>
2023-03-30iov_iter: add iter_iov_addr() and iter_iov_len() helpersJens Axboe
These just return the address and length of the current iovec segment in the iterator. Convert existing iov_iter_iovec() users to use them instead of getting a copy of the current vec. Signed-off-by: Jens Axboe <axboe@kernel.dk>
2023-03-30iov_iter: add iter_iovec() helperJens Axboe
This returns a pointer to the current iovec entry in the iterator. Only useful with ITER_IOVEC right now, but it prepares us to treat ITER_UBUF and ITER_IOVEC identically for the first segment. Rename struct iov_iter->iov to iov_iter->__iov to find any potentially troublesome spots, and also to prevent anyone from adding new code that accesses iter->iov directly. Signed-off-by: Jens Axboe <axboe@kernel.dk>
2023-03-30dt-bindings: clock: r8a7779: Add PWM module clockGeert Uytterhoeven
Add the module clock used by the PWM Timers on the Renesas R-Car H1 (R8A7779) SoC. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/1397b517fccbe716a71cfae770512ed577730a25.1679329211.git.geert+renesas@glider.be
2023-03-30spi: s3c64xx: add no_cs descriptionJaewon Kim
This patch adds missing variable no_cs descriptions. Signed-off-by: Jaewon Kim <jaewon02.kim@samsung.com> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Reviewed-by: Andi Shyti <andi@etezian.org> Link: https://lore.kernel.org/r/20230306014239.80570-1-jaewon02.kim@samsung.com Signed-off-by: Mark Brown <broonie@kernel.org>
2023-03-30net: add softnet_data.in_net_rx_actionEric Dumazet
We want to make two optimizations in napi_schedule_rps() and ____napi_schedule() which require to know if these helpers are called from net_rx_action(), instead of being called from other contexts. sd.in_net_rx_action is only read/written by the owning cpu. Signed-off-by: Eric Dumazet <edumazet@google.com> Reviewed-by: Jason Xing <kerneljasonxing@gmail.com> Tested-by: Jason Xing <kerneljasonxing@gmail.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2023-03-30wifi: nl80211: support advertising S1G capabilitiesKieran Frewen
Include S1G capabilities in netlink band info messages. Signed-off-by: Kieran Frewen <kieran.frewen@morsemicro.com> Co-developed-by: Gilad Itzkovitch <gilad.itzkovitch@morsemicro.com> Signed-off-by: Gilad Itzkovitch <gilad.itzkovitch@morsemicro.com> Link: https://lore.kernel.org/r/20230223212917.4010246-1-gilad.itzkovitch@virscient.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2023-03-30nfs: use vfs setgid helperChristian Brauner
We've aligned setgid behavior over multiple kernel releases. The details can be found in the following two merge messages: cf619f891971 ("Merge tag 'fs.ovl.setgid.v6.2') 426b4ca2d6a5 ("Merge tag 'fs.setgid.v6.0') Consistent setgid stripping behavior is now encapsulated in the setattr_should_drop_sgid() helper which is used by all filesystems that strip setgid bits outside of vfs proper. Switch nfs to rely on this helper as well. Without this patch the setgid stripping tests in xfstests will fail. Signed-off-by: Christian Brauner (Microsoft) <brauner@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de> Message-Id: <20230313-fs-nfs-setgid-v2-1-9a59f436cfc0@kernel.org> Signed-off-by: Christian Brauner <brauner@kernel.org>
2023-03-29kunit: increase KUNIT_LOG_SIZE to 2048 bytesHeiko Carstens
The s390 specific test_unwind kunit test has 39 parameterized tests. The results in debugfs are truncated since the full log doesn't fit into 1500 bytes. Therefore increase KUNIT_LOG_SIZE to 2048 bytes in a similar way like it was done recently with commit "kunit: fix bug in debugfs logs of parameterized tests". With that the whole test result is present. Reported-by: Alexander Egorenkov <egorenar@linux.ibm.com> Signed-off-by: Heiko Carstens <hca@linux.ibm.com> Reviewed-by: Rae Moar <rmoar@google.com> Reviewed-by: David Gow <davidgow@google.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2023-03-29f2fs: convert to use bitmap APIYangtao Li
Let's use BIT() and GENMASK() instead of open it. Signed-off-by: Yangtao Li <frank.li@vivo.com> Reviewed-by: Chao Yu <chao@kernel.org> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2023-03-29power: supply: generic-adc-battery: use simple-battery APISebastian Reichel
Constant battery data is available through power-supply's simple-battery API. This works automatically, so the manual handling can be removed without loosing any feature :) Note, that the POWER_SUPPLY_STATUS_FULL check for the level variable can be dropped, since the variable is never written. It can be re-introduced properly once the driver gets functionality to calculate the current charge level. Apart from that the check must be done fuzzy anyways, since charge estimation usually is not precise enough to always return exactly the full charge capacity for a full battery. Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Matti Vaittinen <mazziesaccount@gmail.com> Signed-off-by: Sebastian Reichel <sre@kernel.org>
2023-03-29power: supply: generic-adc-battery: drop charge now supportSebastian Reichel
Drop CHARGE_NOW support, which requires a platform specific calculation method. Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Matti Vaittinen <mazziesaccount@gmail.com> Signed-off-by: Sebastian Reichel <sre@kernel.org>
2023-03-29power: supply: generic-adc-battery: drop jitter delay supportSebastian Reichel
Drop support for configuring IRQ jitter delay by using big enough fixed value. Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Sebastian Reichel <sre@kernel.org>
2023-03-29power: supply: core: auto-exposure of simple-battery dataSebastian Reichel
Automatically expose data from the simple-battery firmware node for all battery drivers. Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Matti Vaittinen <mazziesaccount@gmail.com> Signed-off-by: Sebastian Reichel <sre@kernel.org>
2023-03-29Merge tag 'f2fs-fix-6.3-rc5' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs Pull f2fs fix from Jaegeuk Kim: "This fixes a tracepoint field size in f2fs in preparation for stricter rules for tracing fields" * tag 'f2fs-fix-6.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs: f2fs: Fix f2fs_truncate_partial_nodes ftrace event
2023-03-29Merge v6.3-rc4 into drm-nextDaniel Vetter
I just landed the fence deadline PR from Rob that a bunch of drivers want/need to apply driver-specific patches. Backmerge -rc4 so that they don't have to be stuck on -rc2 for no reason at all. Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2023-03-29Merge tag 'dma-fence-deadline' of https://gitlab.freedesktop.org/drm/msm ↵Daniel Vetter
into drm-next This series adds a deadline hint to fences, so realtime deadlines such as vblank can be communicated to the fence signaller for power/ frequency management decisions. This is partially inspired by a trick i915 does, but implemented via dma-fence for a couple of reasons: 1) To continue to be able to use the atomic helpers 2) To support cases where display and gpu are different drivers See https://patchwork.freedesktop.org/series/93035/ This does not yet add any UAPI, although this will be needed in a number of cases: 1) Workloads "ping-ponging" between CPU and GPU, where we don't want the GPU freq governor to interpret time stalled waiting for GPU as "idle" time 2) Cases where the compositor is waiting for fences to be signaled before issuing the atomic ioctl, for example to maintain 60fps cursor updates even when the GPU is not able to maintain that framerate. Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> From: Rob Clark <robdclark@gmail.com> Link: https://patchwork.freedesktop.org/patch/msgid/CAF6AEGt5nDQpa6J86V1oFKPA30YcJzPhAVpmF7N1K1g2N3c=Zg@mail.gmail.com
2023-03-29regmap: Removed compressed cache supportMark Brown
The compressed register cache support has assumptions that make it hard to cover in testing, mainly that it requires raw registers defaults be provided. Rather than either address these assumptions or leave it untested by the forthcoming KUnit tests let's remove it, the use case is quite thin and there are no current users. Signed-off-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20230324-regcache-lzo-v1-1-08c5d63e2a5e@kernel.org
2023-03-29tracing/user_events: Align structs with tabs for readabilityBeau Belgrave
Add tabs to make struct members easier to read and unify the style of the code. Link: https://lkml.kernel.org/r/20230328235219.203-13-beaub@linux.microsoft.com Signed-off-by: Beau Belgrave <beaub@linux.microsoft.com> Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
2023-03-29tracing/user_events: Add ioctl for disabling addressesBeau Belgrave
Enablements are now tracked by the lifetime of the task/mm. User processes need to be able to disable their addresses if tracing is requested to be turned off. Before unmapping the page would suffice. However, we now need a stronger contract. Add an ioctl to enable this. A new flag bit is added, freeing, to user_event_enabler to ensure that if the event is attempted to be removed while a fault is being handled that the remove is delayed until after the fault is reattempted. Link: https://lkml.kernel.org/r/20230328235219.203-6-beaub@linux.microsoft.com Signed-off-by: Beau Belgrave <beaub@linux.microsoft.com> Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
2023-03-29tracing/user_events: Use remote writes for event enablementBeau Belgrave
As part of the discussions for user_events aligned with user space tracers, it was determined that user programs should register a aligned value to set or clear a bit when an event becomes enabled. Currently a shared page is being used that requires mmap(). Remove the shared page implementation and move to a user registered address implementation. In this new model during the event registration from user programs 3 new values are specified. The first is the address to update when the event is either enabled or disabled. The second is the bit to set/clear to reflect the event being enabled. The third is the size of the value at the specified address. This allows for a local 32/64-bit value in user programs to support both kernel and user tracers. As an example, setting bit 31 for kernel tracers when the event becomes enabled allows for user tracers to use the other bits for ref counts or other flags. The kernel side updates the bit atomically, user programs need to also update these values atomically. User provided addresses must be aligned on a natural boundary, this allows for single page checking and prevents odd behaviors such as a enable value straddling 2 pages instead of a single page. Currently page faults are only logged, future patches will handle these. Link: https://lkml.kernel.org/r/20230328235219.203-4-beaub@linux.microsoft.com Suggested-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Signed-off-by: Beau Belgrave <beaub@linux.microsoft.com> Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
2023-03-29tracing/user_events: Track fork/exec/exit for mm lifetimeBeau Belgrave
During tracefs discussions it was decided instead of requiring a mapping within a user-process to track the lifetime of memory descriptors we should hook the appropriate calls. Do this by adding the minimal stubs required for task fork, exec, and exit. Currently this is just a NOP. Future patches will implement these calls fully. Link: https://lkml.kernel.org/r/20230328235219.203-3-beaub@linux.microsoft.com Suggested-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Signed-off-by: Beau Belgrave <beaub@linux.microsoft.com> Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
2023-03-29tracing/user_events: Split header into uapi and kernelBeau Belgrave
The UAPI parts need to be split out from the kernel parts of user_events now that other parts of the kernel will reference it. Do so by moving the existing include/linux/user_events.h into include/uapi/linux/user_events.h. Link: https://lkml.kernel.org/r/20230328235219.203-2-beaub@linux.microsoft.com Signed-off-by: Beau Belgrave <beaub@linux.microsoft.com> Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
2023-03-29mtd: spi-nor: Enhance locking to support reads while writesMiquel Raynal
On devices featuring several banks, the Read While Write (RWW) feature is here to improve the overall performance when performing parallel reads and writes at different locations (different banks). The following constraints have to be taken into account: 1#: A single operation can be performed in a given bank. 2#: Only a single program or erase operation can happen on the entire chip (common hardware limitation to limit costs) 3#: Reads must remain serialized even though reads crossing bank boundaries are allowed. 4#: The I/O bus is unique and thus is the most constrained resource, all spi-nor operations requiring access to the spi bus (through the spi controller) must be serialized until the bus exchanges are over. So we must ensure a single operation can be "sent" at a time. 5#: Any other operation that would not be either a read or a write or an erase is considered requiring access to the full chip and cannot be parallelized, we then need to ensure the full chip is in the idle state when this occurs. All these constraints can easily be managed with a proper locking model: 1#: Is enforced by a bitfield of the in-use banks, so that only a single operation can happen in a specific bank at any time. 2#: Is handled by the ongoing_pe boolean which is set before any write or erase, and is released only at the very end of the operation. This way, no other destructive operation on the chip can start during this time frame. 3#: An ongoing_rd boolean allows to track the ongoing reads, so that only one can be performed at a time. 4#: An ongoing_io boolean is introduced in order to capture and serialize bus accessed. This is the one being released "sooner" than before, because we only need to protect the chip against other SPI accesses during the I/O phase, which for the destructive operations is the beginning of the operation (when we send the command cycles and possibly the data), while the second part of the operation (the erase delay or the programmation delay) is when we can do something else in another bank. 5#: Is handled by the three booleans presented above, if any of them is set, the chip is not yet ready for the operation and must wait. All these internal variables are protected by the existing lock, so that changes in this structure are atomic. The serialization is handled with a wait queue. Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Link: https://lore.kernel.org/r/20230328154105.448540-8-miquel.raynal@bootlin.com Signed-off-by: Tudor Ambarus <tudor.ambarus@linaro.org>
2023-03-29cdx: add device attributesNipun Gupta
Create sysfs entry for CDX devices. Sysfs entries provided in each of the CDX device detected by the CDX controller - vendor id - device id - remove - reset of the device. - driver override Signed-off-by: Puneet Gupta <puneet.gupta@amd.com> Signed-off-by: Nipun Gupta <nipun.gupta@amd.com> Signed-off-by: Tarak Reddy <tarak.reddy@amd.com> Reviewed-by: Pieter Jansen van Vuuren <pieter.jansen-van-vuuren@amd.com> Tested-by: Nikhil Agarwal <nikhil.agarwal@amd.com> Link: https://lore.kernel.org/r/20230313132636.31850-8-nipun.gupta@amd.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-03-29cdx: add the cdx bus driverNipun Gupta
Introduce AMD CDX bus, which provides a mechanism for scanning and probing CDX devices. These devices are memory mapped on system bus for Application Processors(APUs). CDX devices can be changed dynamically in the Fabric and CDX bus interacts with CDX controller to rescan the bus and rediscover the devices. Signed-off-by: Nipun Gupta <nipun.gupta@amd.com> Reviewed-by: Pieter Jansen van Vuuren <pieter.jansen-van-vuuren@amd.com> Tested-by: Nikhil Agarwal <nikhil.agarwal@amd.com> Link: https://lore.kernel.org/r/20230313132636.31850-2-nipun.gupta@amd.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-03-29tty: n_gsm: add ioctl for DLC specific parameter configurationDaniel Starke
Parameter negotiation has been introduced with commit 92f1f0c3290d ("tty: n_gsm: add parameter negotiation support") However, means to set individual parameters per DLCI are not yet implemented. Furthermore, it is currently not possible to keep a DLCI half open until the user application sets the right parameters for it. This is required to allow a user application to set its specific parameters before the underlying link is established. Otherwise, the link is opened and re-established right afterwards if the user application sets incompatible parameters. This may be an unexpected behavior for the peer. Add parameter 'wait_config' to 'gsm_config' to support setups where the DLCI specific user application sets its specific parameters after open() and before the link gets fully established. Setting this to zero disables the user application specific DLCI configuration option. Add the ioctls 'GSMIOC_GETCONF_DLCI' and 'GSMIOC_SETCONF_DLCI' for the ldisc and virtual ttys. This gets/sets the DLCI specific parameters and may trigger a reconnect of the DLCI if incompatible values have been set. Only the parameters for the DLCI associated with the virtual tty can be set or retrieved if called on these. Add remark within the documentation to introduce the new ioctls. Link: https://lore.kernel.org/oe-kbuild-all/202302281856.S9Lz4gHB-lkp@intel.com/ Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Daniel Starke <daniel.starke@siemens.com> Link: https://lore.kernel.org/r/20230315105354.6234-1-daniel.starke@siemens.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-03-29Merge branch 'slab/for-6.4/slob-removal' into slab/for-nextVlastimil Babka
A series by myself to remove CONFIG_SLOB: The SLOB allocator was deprecated in 6.2 and there have been no complaints so far so let's proceed with the removal. Besides the code cleanup, the main immediate benefit will be allowing kfree() family of function to work on kmem_cache_alloc() objects, which was incompatible with SLOB. This includes kfree_rcu() which had no kmem_cache_free_rcu() counterpart yet and now it shouldn't be necessary anymore. Otherwise it's all straightforward removal. After this series, 'git grep slob' or 'git grep SLOB' will have 3 remaining relevant hits in non-mm code: - tomoyo - patch submitted and carried there, doesn't need to wait for this series - skbuff - patch to cleanup now-unnecessary #ifdefs will be posted to netdev after this is merged, as requested to avoid conflicts - ftrace ring_buffer - patch to remove obsolete comment is carried there The rest of 'git grep SLOB' hits are false positives, or intentional (CREDITS, and mm/Kconfig SLUB_TINY description to help those that will happen to migrate later).
2023-03-29Merge branch 'slab/for-6.4/trivial' into slab/for-nextVlastimil Babka
Trivial slab and slub fixes for 6.4. A comment fix, a structure constification, and a config SLUB_DEBUG help text fix.
2023-03-29linux/vt_buffer.h: allow either builtin or modular for macrosRandy Dunlap
Fix build errors on ARCH=alpha when CONFIG_MDA_CONSOLE=m. This allows the ARCH macros to be the only ones defined. In file included from ../drivers/video/console/mdacon.c:37: ../arch/alpha/include/asm/vga.h:17:40: error: expected identifier or '(' before 'volatile' 17 | static inline void scr_writew(u16 val, volatile u16 *addr) | ^~~~~~~~ ../include/linux/vt_buffer.h:24:34: note: in definition of macro 'scr_writew' 24 | #define scr_writew(val, addr) (*(addr) = (val)) | ^~~~ ../include/linux/vt_buffer.h:24:40: error: expected ')' before '=' token 24 | #define scr_writew(val, addr) (*(addr) = (val)) | ^ ../arch/alpha/include/asm/vga.h:17:20: note: in expansion of macro 'scr_writew' 17 | static inline void scr_writew(u16 val, volatile u16 *addr) | ^~~~~~~~~~ ../arch/alpha/include/asm/vga.h:25:29: error: expected identifier or '(' before 'volatile' 25 | static inline u16 scr_readw(volatile const u16 *addr) | ^~~~~~~~ Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Jiri Slaby <jirislaby@kernel.org> Cc: dri-devel@lists.freedesktop.org Cc: linux-fbdev@vger.kernel.org Link: https://lore.kernel.org/r/20230329021529.16188-1-rdunlap@infradead.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-03-29mm/slab: document kfree() as allowed for kmem_cache_alloc() objectsVlastimil Babka
This will make it easier to free objects in situations when they can come from either kmalloc() or kmem_cache_alloc(), and also allow kfree_rcu() for freeing objects from kmem_cache_alloc(). For the SLAB and SLUB allocators this was always possible so with SLOB gone, we can document it as supported. Signed-off-by: Vlastimil Babka <vbabka@suse.cz> Reviewed-by: Mike Rapoport (IBM) <rppt@kernel.org> Cc: Jonathan Corbet <corbet@lwn.net> Cc: "Paul E. McKenney" <paulmck@kernel.org> Cc: Frederic Weisbecker <frederic@kernel.org> Cc: Neeraj Upadhyay <quic_neeraju@quicinc.com> Cc: Josh Triplett <josh@joshtriplett.org> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Cc: Lai Jiangshan <jiangshanlai@gmail.com> Cc: Joel Fernandes <joel@joelfernandes.org>
2023-03-29mm/slab: remove CONFIG_SLOB code from slab common codeVlastimil Babka
CONFIG_SLOB has been removed from Kconfig. Remove code and #ifdef's specific to SLOB in the slab headers and common code. Signed-off-by: Vlastimil Babka <vbabka@suse.cz> Reviewed-by: Hyeonggon Yoo <42.hyeyoo@gmail.com> Acked-by: Lorenzo Stoakes <lstoakes@gmail.com> Acked-by: Mike Rapoport (IBM) <rppt@kernel.org>
2023-03-29mm, page_flags: remove PG_slob_freeVlastimil Babka
With SLOB removed we no longer need the PG_slob_free alias for PG_private. Also update tools/mm/page-types. Signed-off-by: Vlastimil Babka <vbabka@suse.cz> Acked-by: Hyeonggon Yoo <42.hyeyoo@gmail.com> Acked-by: Lorenzo Stoakes <lstoakes@gmail.com> Acked-by: Mike Rapoport (IBM) <rppt@kernel.org>
2023-03-29usb: gadget: Add function wakeup supportElson Roy Serrao
USB3.2 spec section 9.2.5.4 quotes that a function may signal that it wants to exit from Function Suspend by sending a Function Wake Notification to the host if it is enabled for function remote wakeup. Add an api in composite layer that can be used by the function drivers to support this feature. Also expose a gadget op so that composite layer can trigger a wakeup request to the UDC driver. Reviewed-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com> Signed-off-by: Elson Roy Serrao <quic_eserrao@quicinc.com> Link: https://lore.kernel.org/r/1679694482-16430-4-git-send-email-quic_eserrao@quicinc.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-03-29usb: gadget: Properly configure the device for remote wakeupElson Roy Serrao
The wakeup bit in the bmAttributes field indicates whether the device is configured for remote wakeup. But this field should be allowed to set only if the UDC supports such wakeup mechanism. So configure this field based on UDC capability. Also inform the UDC whether the device is configured for remote wakeup by implementing a gadget op. Reviewed-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com> Signed-off-by: Elson Roy Serrao <quic_eserrao@quicinc.com> Link: https://lore.kernel.org/r/1679694482-16430-2-git-send-email-quic_eserrao@quicinc.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-03-29macvlan: Add netlink attribute for broadcast cutoffHerbert Xu
Make the broadcast cutoff configurable through netlink. Note that macvlan is weird because there is no central device for us to configure (the lowerdev could be anything). So all the options are duplicated over what could be thousands of child devices. IFLA_MACVLAN_BC_QUEUE_LEN took the approach of taking the maximum of all child device settings. This is unnecessary as we could simply store the option in the port device and take the last child device that gets updated as the value to use. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2023-03-29ipv6: Remove in6addr_any alternatives.Kuniyuki Iwashima
Some code defines the IPv6 wildcard address as a local variable and use it with memcmp() or ipv6_addr_equal(). Let's use in6addr_any and ipv6_addr_any() instead. Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com> Reviewed-by: Mark Bloch <mbloch@nvidia.com> Reviewed-by: David Ahern <dsahern@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2023-03-29vsock: support sockmapBobby Eshleman
This patch adds sockmap support for vsock sockets. It is intended to be usable by all transports, but only the virtio and loopback transports are implemented. SOCK_STREAM, SOCK_DGRAM, and SOCK_SEQPACKET are all supported. Signed-off-by: Bobby Eshleman <bobby.eshleman@bytedance.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Stefano Garzarella <sgarzare@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2023-03-29Merge branch 'mlx5-next' into wip/leon-for-nextLeon Romanovsky
* mlx5-next: net/mlx5: Introduce other vport query for Q-counters
2023-03-29net/mlx5: Introduce other vport query for Q-countersPatrisious Haddad
These new fields in QUERY_Q_COUNTER command allow us to access another vport counters during the query command, which is specially useful to query representor vports. In addition also add the required caps to check if this capability is actually supported. Signed-off-by: Patrisious Haddad <phaddad@nvidia.com> Reviewed-by: Michael Guralnik <michaelgur@nvidia.com> Link: https://lore.kernel.org/r/75c73a4a0e60f18c37b35a4a11ca2e2415e4a6f3.1679566038.git.leon@kernel.org Signed-off-by: Leon Romanovsky <leon@kernel.org>