+ kunit-enable-testing-smp_cond_load_relaxed_timeout.patch added to mm-new branch

+ kunit-enable-testing-smp_cond_load_relaxed_timeout.patch added to mm-new branch

[Andrew Morton]

The patch titled
     Subject: kunit: enable testing smp_cond_load_relaxed_timeout()
has been added to the -mm mm-new branch.  Its filename is
     kunit-enable-testing-smp_cond_load_relaxed_timeout.patch

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/kunit-enable-testing-smp_cond_load_relaxed_timeout.patch

This patch will later appear in the mm-new branch at
    git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Note, mm-new is a provisional staging ground for work-in-progress
patches, and acceptance into mm-new is a notification for others take
notice and to finish up reviews.  Please do not hesitate to respond to
review feedback and post updated versions to replace or incrementally
fixup patches in mm-new.

The mm-new branch of mm.git is not included in linux-next

If a few days of testing in mm-new is successful, the patch will me moved
into mm.git's mm-unstable branch, which is included in linux-next

Before you just go and hit "reply", please:
   a) Consider who else should be cc'ed
   b) Prefer to cc a suitable mailing list as well
   c) Ideally: find the original patch on the mailing list and do a
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*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***

The -mm tree is included into linux-next via various
branches at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
and is updated there most days

------------------------------------------------------
From: Ankur Arora <ankur.a.arora@oracle.com>
Subject: kunit: enable testing smp_cond_load_relaxed_timeout()
Date: Wed, 8 Apr 2026 17:55:37 +0530

This enables the barrier tests to be built as a module.

Link: https://lore.kernel.org/20260408122538.3610871-14-ankur.a.arora@oracle.com
Signed-off-by: Ankur Arora <ankur.a.arora@oracle.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: David Gow <davidgow@google.com>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Bjorn Andersson <andersson@kernel.org>
Cc: Boqun Feng <boqun.feng@gmail.com>
Cc: Boqun Feng <boqun@kernel.org>
Cc: Christoph Lameter <cl@linux.com>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: Gary Guo <gary@garyguo.net>
Cc: Haris Okanovic <harisokn@amazon.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Konrad Dybcio <konradybcio@kernel.org>
Cc: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rafael J. Wysocki (Intel) <rafael@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 arch/arm64/lib/delay.c               |    2 ++
 drivers/clocksource/arm_arch_timer.c |    2 ++
 2 files changed, 4 insertions(+)

--- a/arch/arm64/lib/delay.c~kunit-enable-testing-smp_cond_load_relaxed_timeout
+++ a/arch/arm64/lib/delay.c
@@ -12,6 +12,7 @@
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/timex.h>
+#include <kunit/visibility.h>
 #include <asm/delay-const.h>
 
 #include <clocksource/arm_arch_timer.h>
@@ -30,6 +31,7 @@ u64 notrace __delay_cycles(void)
 	guard(preempt_notrace)();
 	return __arch_counter_get_cntvct_stable();
 }
+EXPORT_SYMBOL_IF_KUNIT(__delay_cycles);
 
 void __delay(unsigned long cycles)
 {
--- a/drivers/clocksource/arm_arch_timer.c~kunit-enable-testing-smp_cond_load_relaxed_timeout
+++ a/drivers/clocksource/arm_arch_timer.c
@@ -28,6 +28,7 @@
 #include <linux/acpi.h>
 #include <linux/arm-smccc.h>
 #include <linux/ptp_kvm.h>
+#include <kunit/visibility.h>
 
 #include <asm/arch_timer.h>
 #include <asm/virt.h>
@@ -896,6 +897,7 @@ bool arch_timer_evtstrm_available(void)
 	 */
 	return cpumask_test_cpu(raw_smp_processor_id(), &evtstrm_available);
 }
+EXPORT_SYMBOL_IF_KUNIT(arch_timer_evtstrm_available);
 
 static struct arch_timer_kvm_info arch_timer_kvm_info;
 
_

Patches currently in -mm which might be from ankur.a.arora@oracle.com are

asm-generic-barrier-add-smp_cond_load_relaxed_timeout.patch
arm64-barrier-support-smp_cond_load_relaxed_timeout.patch
arm64-delay-move-some-constants-out-to-a-separate-header.patch
arm64-support-wfet-in-smp_cond_load_relaxed_timeout.patch
arm64-rqspinlock-remove-private-copy-of-smp_cond_load_acquire_timewait.patch
asm-generic-barrier-add-smp_cond_load_acquire_timeout.patch
atomic-add-atomic_cond_read__timeout.patch
locking-atomic-scripts-build-atomic_long_cond_read__timeout.patch
bpf-rqspinlock-switch-check_timeout-to-a-clock-interface.patch
bpf-rqspinlock-use-smp_cond_load_acquire_timeout.patch
sched-add-need-resched-timed-wait-interface.patch
cpuidle-poll_state-wait-for-need-resched-via-tif_need_resched_relaxed_wait.patch
kunit-enable-testing-smp_cond_load_relaxed_timeout.patch
kunit-add-tests-for-smp_cond_load_relaxed_timeout.patch