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-rw-r--r--arch/arm64/mm/mmu.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c
index f1eb15e0e864..267d2b79d52d 100644
--- a/arch/arm64/mm/mmu.c
+++ b/arch/arm64/mm/mmu.c
@@ -778,6 +778,10 @@ void __init early_fixmap_init(void)
}
}
+/*
+ * Unusually, this is also called in IRQ context (ghes_iounmap_irq) so if we
+ * ever need to use IPIs for TLB broadcasting, then we're in trouble here.
+ */
void __set_fixmap(enum fixed_addresses idx,
phys_addr_t phys, pgprot_t flags)
{