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authorKevin Brodsky <kevin.brodsky@arm.com>2025-12-18 10:05:40 +0000
committerAndrew Morton <akpm@linux-foundation.org>2026-01-31 14:22:40 -0800
commit3a64d5b82eccc0dc629d43cde791a2c19bd67dfc (patch)
treed267ee3139ee71e9aaafae09aaf724b7095270d5
parented0a826ce3025832c8d8b79924fd638f75b62bb7 (diff)
sparc/mm: export symbols for lazy_mmu_mode KUnit tests
The lazy_mmu_mode KUnit tests call lazy_mmu_mode_{enable,disable}. These tests may be built as a module, and because of inlining this means that arch_{enter,flush,leave}_lazy_mmu_mode need to be exported. [akpm@linux-foundation.org: remove mm/tests/lazy_mmu_mode_kunit.c comment, per Kevin] Link: https://lkml.kernel.org/r/20251218100541.2667405-1-kevin.brodsky@arm.com Fixes: ee628d9cc8d5 ("mm: add basic tests for lazy_mmu") Signed-off-by: Kevin Brodsky <kevin.brodsky@arm.com> Acked-by: Andreas Larsson <andreas@gaisler.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
-rw-r--r--arch/sparc/mm/tlb.c6
-rw-r--r--mm/tests/lazy_mmu_mode_kunit.c1
2 files changed, 6 insertions, 1 deletions
diff --git a/arch/sparc/mm/tlb.c b/arch/sparc/mm/tlb.c
index 3a852071d260..6d9dd5eb1328 100644
--- a/arch/sparc/mm/tlb.c
+++ b/arch/sparc/mm/tlb.c
@@ -11,6 +11,8 @@
#include <linux/preempt.h>
#include <linux/pagemap.h>
+#include <kunit/visibility.h>
+
#include <asm/tlbflush.h>
#include <asm/cacheflush.h>
#include <asm/mmu_context.h>
@@ -54,6 +56,8 @@ void arch_enter_lazy_mmu_mode(void)
{
preempt_disable();
}
+/* For lazy_mmu_mode KUnit tests */
+EXPORT_SYMBOL_IF_KUNIT(arch_enter_lazy_mmu_mode);
void arch_flush_lazy_mmu_mode(void)
{
@@ -62,12 +66,14 @@ void arch_flush_lazy_mmu_mode(void)
if (tb->tlb_nr)
flush_tlb_pending();
}
+EXPORT_SYMBOL_IF_KUNIT(arch_flush_lazy_mmu_mode);
void arch_leave_lazy_mmu_mode(void)
{
arch_flush_lazy_mmu_mode();
preempt_enable();
}
+EXPORT_SYMBOL_IF_KUNIT(arch_leave_lazy_mmu_mode);
static void tlb_batch_add_one(struct mm_struct *mm, unsigned long vaddr,
bool exec, unsigned int hugepage_shift)
diff --git a/mm/tests/lazy_mmu_mode_kunit.c b/mm/tests/lazy_mmu_mode_kunit.c
index 1c23456b467e..b689241c6bef 100644
--- a/mm/tests/lazy_mmu_mode_kunit.c
+++ b/mm/tests/lazy_mmu_mode_kunit.c
@@ -2,7 +2,6 @@
#include <kunit/test.h>
#include <linux/pgtable.h>
-/* For some symbols referenced by arch_{enter,leave}_lazy_mmu_mode on powerpc */
MODULE_IMPORT_NS("EXPORTED_FOR_KUNIT_TESTING");
static void expect_not_active(struct kunit *test)