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dmarc=none X-Rspam-User: nil X-HE-Tag: 1643791502-965775 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: Instead of opencoding, use the new kasan_pXX_table() helpers. Signed-off-by: Christophe Leroy --- mm/ptdump.c | 23 ++++++----------------- 1 file changed, 6 insertions(+), 17 deletions(-) diff --git a/mm/ptdump.c b/mm/ptdump.c index da751448d0e4..bb6782de8203 100644 --- a/mm/ptdump.c +++ b/mm/ptdump.c @@ -4,7 +4,6 @@ #include #include =20 -#if defined(CONFIG_KASAN_GENERIC) || defined(CONFIG_KASAN_SW_TAGS) /* * This is an optimization for KASAN=3Dy case. Since all kasan page tables * eventually point to the kasan_early_shadow_page we could call note_page= () @@ -15,15 +14,16 @@ static inline int note_kasan_page_table(struct mm_walk *walk, unsigned long addr) { +#ifdef CONFIG_KASAN_SOFTWARE struct ptdump_state *st =3D walk->private; =20 st->note_page(st, addr, 4, pte_val(kasan_early_shadow_pte[0])); =20 walk->action =3D ACTION_CONTINUE; +#endif =20 return 0; } -#endif =20 static int ptdump_pgd_entry(pgd_t *pgd, unsigned long addr, unsigned long next, struct mm_walk *walk) @@ -31,11 +31,8 @@ static int ptdump_pgd_entry(pgd_t *pgd, unsigned long ad= dr, struct ptdump_state *st =3D walk->private; pgd_t val =3D READ_ONCE(*pgd); =20 -#if CONFIG_PGTABLE_LEVELS > 4 && \ - (defined(CONFIG_KASAN_GENERIC) || defined(CONFIG_KASAN_SW_TAGS)) - if (pgd_page(val) =3D=3D virt_to_page(lm_alias(kasan_early_shadow_p4d))) + if (kasan_p4d_table(val)) return note_kasan_page_table(walk, addr); -#endif =20 if (st->effective_prot) st->effective_prot(st, 0, pgd_val(val)); @@ -52,11 +49,8 @@ static int ptdump_p4d_entry(p4d_t *p4d, unsigned long ad= dr, struct ptdump_state *st =3D walk->private; p4d_t val =3D READ_ONCE(*p4d); =20 -#if CONFIG_PGTABLE_LEVELS > 3 && \ - (defined(CONFIG_KASAN_GENERIC) || defined(CONFIG_KASAN_SW_TAGS)) - if (p4d_page(val) =3D=3D virt_to_page(lm_alias(kasan_early_shadow_pud))) + if (kasan_pud_table(val)) return note_kasan_page_table(walk, addr); -#endif =20 if (st->effective_prot) st->effective_prot(st, 1, p4d_val(val)); @@ -73,11 +67,8 @@ static int ptdump_pud_entry(pud_t *pud, unsigned long ad= dr, struct ptdump_state *st =3D walk->private; pud_t val =3D READ_ONCE(*pud); =20 -#if CONFIG_PGTABLE_LEVELS > 2 && \ - (defined(CONFIG_KASAN_GENERIC) || defined(CONFIG_KASAN_SW_TAGS)) - if (pud_page(val) =3D=3D virt_to_page(lm_alias(kasan_early_shadow_pmd))) + if (kasan_pmd_table(val)) return note_kasan_page_table(walk, addr); -#endif =20 if (st->effective_prot) st->effective_prot(st, 2, pud_val(val)); @@ -94,10 +85,8 @@ static int ptdump_pmd_entry(pmd_t *pmd, unsigned long ad= dr, struct ptdump_state *st =3D walk->private; pmd_t val =3D READ_ONCE(*pmd); =20 -#if defined(CONFIG_KASAN_GENERIC) || defined(CONFIG_KASAN_SW_TAGS) - if (pmd_page(val) =3D=3D virt_to_page(lm_alias(kasan_early_shadow_pte))) + if (kasan_pte_table(val)) return note_kasan_page_table(walk, addr); -#endif =20 if (st->effective_prot) st->effective_prot(st, 3, pmd_val(val)); --=20 2.33.1