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Since there is no change in the page table after early fixmap initialization, an initialization flag was added. Signed-off-by: Daero Lee --- arch/arm64/mm/fixmap.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/arch/arm64/mm/fixmap.c b/arch/arm64/mm/fixmap.c index c0a3301203bd..fbdd5f30f3a1 100644 --- a/arch/arm64/mm/fixmap.c +++ b/arch/arm64/mm/fixmap.c @@ -32,6 +32,8 @@ static pte_t bm_pte[NR_BM_PTE_TABLES][PTRS_PER_PTE] __page_aligned_bss; static pmd_t bm_pmd[PTRS_PER_PMD] __page_aligned_bss __maybe_unused; static pud_t bm_pud[PTRS_PER_PUD] __page_aligned_bss __maybe_unused; +static int early_fixmap_initialized __initdata; + static inline pte_t *fixmap_pte(unsigned long addr) { return &bm_pte[BM_PTE_TABLE_IDX(addr)][pte_index(addr)]; @@ -100,10 +102,15 @@ void __init early_fixmap_init(void) unsigned long addr = FIXADDR_TOT_START; unsigned long end = FIXADDR_TOP; + if (early_fixmap_initialized) + return; + pgd_t *pgdp = pgd_offset_k(addr); p4d_t *p4dp = p4d_offset(pgdp, addr); early_fixmap_init_pud(p4dp, addr, end); + + early_fixmap_initialized = 1; } /* -- 2.25.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel