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authorLinus Torvalds <torvalds@linux-foundation.org>2026-10-02 12:17:24 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2026-10-02 12:17:24 -0700
commit3f1fe48a36b0b6722dc3fd421d93512bac138e9a (patch)
treeb767d7f6e26bc64334d3f14f8422d187239dc45d /drivers/of/Kconfig
downloadlinux-stable-3f1fe48a36b0b6722dc3fd421d93512bac138e9a.tar.gz
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Merge tag 'io_uring-7.3-20261002' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linuxgrafted
Pull io_uring fixes from Jens Axboe: - Fix a task_work add use-after-free with SQPOLL. The sqpoll thread could pop and complete the last request while io_req_normal_work_add() was still looking at them after the mpscq push. Use the same approach as DEFER_TASKRUN to protect from that, holding an RCU read lock across the add, and have exit wait for an RCU grace period for SQPOLL rings as well. - CQE32 ring fixes: correct the free entry check for 32b CQEs, zero the big_cqe for aux CQEs, and only post the dummy skip CQE on CQE_MIXED rings - Mark the source filter table as COW when cloning bpf filters, so registering another filter on the source doesn't modify the shared table in place - Initialize the task context before running the BPF loop - Requeue zcrx multishot receives stopped by a local resource - End a TX_TIMESTAMP multishot cmd when the CQ is full (lollipopkit) * tag 'io_uring-7.3-20261002' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux: io_uring: fix task_work add use-after-free with SQPOLL io_uring/cmd_net: end TX_TIMESTAMP multishot when the CQ is full io_uring/zcrx: requeue multishot receives stopped by a local resource io_uring: initialize task context before running the BPF loop io_uring: zero big_cqe for aux CQEs on CQE32 rings io_uring: fix free entry check for 32b CQEs on CQE32 rings io_uring: only post the dummy skip CQE on CQE_MIXED rings io_uring/bpf_filter: mark source as COW when cloning filters
Diffstat (limited to 'drivers/of/Kconfig')
-rw-r--r--drivers/of/Kconfig129
1 files changed, 129 insertions, 0 deletions
diff --git a/drivers/of/Kconfig b/drivers/of/Kconfig
new file mode 100644
index 000000000..50697cc3b
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+++ b/drivers/of/Kconfig
@@ -0,0 +1,129 @@
+# SPDX-License-Identifier: GPL-2.0
+config DTC
+ bool
+
+config GENERIC_BUILTIN_DTB
+ bool
+
+config BUILTIN_DTB_ALL
+ bool
+
+menuconfig OF
+ bool "Device Tree and Open Firmware support"
+ help
+ This option enables the device tree infrastructure.
+ It is automatically selected by platforms that need it or can
+ be enabled manually for unittests, overlays or
+ compile-coverage.
+
+if OF
+
+config OF_UNITTEST
+ bool "Device Tree runtime unit tests"
+ depends on OF_EARLY_FLATTREE
+ select IRQ_DOMAIN
+ select OF_RESOLVE
+ help
+ This option builds in test cases for the device tree infrastructure
+ that are executed once at boot time, and the results dumped to the
+ console.
+
+ This option should only be enabled for a development kernel. The tests
+ will taint the kernel with TAINT_TEST. The tests will cause ERROR and
+ WARNING messages to print on the console. The tests will cause stack
+ traces to print on the console. It is possible that the tests will
+ leave the devicetree in a corrupted state.
+
+ The unittest output will be verbose. Copy the output to a file
+ via capturing the console output or via the dmesg command. Process
+ this file with scripts/dtc/of_unittest_expect to reduce the
+ verbosity, test whether expected output is present, and to
+ summarize the results.
+
+ If unsure, say N here. This option is not safe to enable.
+
+config OF_KUNIT_TEST
+ tristate "Devicetree KUnit Test" if !KUNIT_ALL_TESTS
+ depends on KUNIT
+ default KUNIT_ALL_TESTS
+ help
+ This option builds KUnit unit tests for device tree infrastructure.
+
+ If unsure, say N here, but this option is safe to enable.
+
+config OF_ALL_DTBS
+ bool "Build all Device Tree Blobs"
+ depends on COMPILE_TEST
+ select DTC
+ help
+ This option builds all possible Device Tree Blobs (DTBs) for the
+ current architecture.
+
+ If unsure, say N here, but this option is safe to enable.
+
+config OF_FLATTREE
+ bool
+ select DTC
+ select LIBFDT
+ select CRC32
+
+config OF_EARLY_FLATTREE
+ def_bool OF && !(SPARC || ALPHA || HEXAGON || M68K || PARISC || S390)
+ select DMA_DECLARE_COHERENT if HAS_DMA && HAS_IOMEM
+ select OF_FLATTREE
+
+config OF_PROMTREE
+ bool
+
+config OF_KOBJ
+ def_bool SYSFS
+
+# Hardly any platforms need this. It is safe to select, but only do so if you
+# need it.
+config OF_DYNAMIC
+ bool "Support for dynamic device trees" if OF_UNITTEST
+ select OF_KOBJ
+ help
+ On some platforms, the device tree can be manipulated at runtime.
+ While this option is selected automatically on such platforms, you
+ can enable it manually to improve device tree unit test coverage.
+
+config OF_ADDRESS
+ def_bool y
+ depends on !SPARC && (HAS_IOMEM || UML)
+
+config OF_IRQ
+ def_bool y
+ depends on !SPARC && IRQ_DOMAIN
+
+config OF_RESERVED_MEM
+ def_bool OF_EARLY_FLATTREE
+
+config OF_RESOLVE
+ bool
+
+config OF_OVERLAY
+ bool "Device Tree overlays"
+ select OF_DYNAMIC
+ select OF_FLATTREE
+ select OF_RESOLVE
+ help
+ Overlays are a method to dynamically modify part of the kernel's
+ device tree with dynamically loaded data.
+ While this option is selected automatically when needed, you can
+ enable it manually to improve device tree unit test coverage.
+
+config OF_OVERLAY_KUNIT_TEST
+ tristate "Device Tree overlay KUnit tests" if !KUNIT_ALL_TESTS
+ depends on KUNIT
+ default KUNIT_ALL_TESTS
+ select DTC
+ help
+ This option builds KUnit unit tests for the device tree overlay code.
+
+ If unsure, say N here, but this option is safe to enable.
+
+config OF_NUMA
+ bool
+
+endif # OF