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Filename Latest commit message Latest commit date
Nitesh Narayan Lal 18c4c35782 i40e: Use irq_update_affinity_hint() 
[ Upstream commit d34c54d1739c2cdf2e4437b74e6da269147f4987 ]

The driver uses irq_set_affinity_hint() for two purposes:

 - To set the affinity_hint which is consumed by the userspace for
   distributing the interrupts

 - To apply an affinity that it provides for the i40e interrupts

The latter is done to ensure that all the interrupts are evenly spread
across all available CPUs. However, since commit a0c9259dc4 ("irq/matrix:
Spread interrupts on allocation") the spreading of interrupts is
dynamically performed at the time of allocation. Hence, there is no need
for the drivers to enforce their own affinity for the spreading of
interrupts.

Also, irq_set_affinity_hint() applying the provided cpumask as an affinity
for the interrupt is an undocumented side effect. To remove this side
effect irq_set_affinity_hint() has been marked as deprecated and new
interfaces have been introduced. Hence, replace the irq_set_affinity_hint()
with the new interface irq_update_affinity_hint() that only sets the
pointer for the affinity_hint.

Signed-off-by: Nitesh Narayan Lal <nitesh@redhat.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Link: https://lore.kernel.org/r/20210903152430.244937-4-nitesh@redhat.com
Stable-dep-of: 915470e1b44e ("i40e: fix IRQ freeing in i40e_vsi_request_irq_msix error path")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-10-02 13:34:29 +02:00
arch KVM: x86: Take irqfds.lock when adding/deleting IRQ bypass producer 2025-09-09 18:44:00 +02:00
block
certs
crypto
Documentation Documentation: ACPI: Fix parent device references 2025-08-28 16:21:23 +02:00
drivers i40e: Use irq_update_affinity_hint() 2025-10-02 13:34:29 +02:00
fs fuse: prevent overflow in copy_file_range return value 2025-10-02 13:34:28 +02:00
include genirq: Provide new interfaces for affinity hints 2025-10-02 13:34:29 +02:00
init bpfilter: match bit size of bpfilter_umh to that of the kernel 2025-07-17 18:24:51 +02:00
ipc
kernel genirq: Provide new interfaces for affinity hints 2025-10-02 13:34:29 +02:00
lib lib: test_objagg: Set error message in check_expect_hints_stats() 2025-07-17 18:24:56 +02:00
LICENSES
mm mm/khugepaged: fix the address passed to notifier on testing young 2025-10-02 13:34:28 +02:00
net tcp_bpf: Call sk_msg_free() when tcp_bpf_send_verdict() fails to allocate psock->cork. 2025-10-02 13:34:27 +02:00
samples samples: mei: Fix building on musl libc 2025-08-28 16:21:19 +02:00
scripts randstruct: gcc-plugin: Fix attribute addition 2025-09-09 18:44:01 +02:00
security securityfs: don't pin dentries twice, once is enough... 2025-08-28 16:21:24 +02:00
sound ALSA: hda/hdmi: Add pin fix for another HP EliteDesk 800 G4 model 2025-09-09 18:44:01 +02:00
tools act_mirred: use the backlog for nested calls to mirred ingress 2025-08-28 16:21:36 +02:00
usr kbuild: hdrcheck: fix cross build with clang 2025-07-17 18:24:51 +02:00
virt
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS platform: Add Surface platform directory 2025-06-27 11:02:56 +01:00
Makefile Linux 5.4.299 2025-09-09 18:44:02 +02:00
README

README 

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.