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Peter Anvin" , "Liam R. Howlett" , Vlastimil Babka , Mike Rapoport , Suren Baghdasaryan , Michal Hocko , Jonas Bonn , Stefan Kristiansson , Stafford Horne Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, loongarch@lists.linux.dev, linux-mips@vger.kernel.org, linux-arch@vger.kernel.org, linux-mm@kvack.org, kvm@vger.kernel.org, kvm-riscv@lists.infradead.org, linux-riscv@lists.infradead.org, linux-openrisc@vger.kernel.org, Yeoreum Yun X-Mailer: b4 0.13.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=2497; i=yeoreum.yun@arm.com; h=from:subject:message-id; bh=zghhBXP63HUkMVsnVTW1BBI8m5GQHzJyarBmwmrVkLw=; b=owEB7QES/pANAwAKAW3Vw9FaxTEzAcsmYgBqsQ1RutA9R6RYKg0XGt206R+FZYSBvFY5A7m64 WCknKwpoKOJAbMEAAEKAB0WIQQtg+CS3QUzuFh1pJ1t1cPRWsUxMwUCarENUQAKCRBt1cPRWsUx M1QqC/48OSPJozKEnLVOpX6otIW9FV5BhnqTBmb/jwyRutaZTgzJxzVOUro/bD5JHER9PhjqHfC eNHCzQ1aUnfnS7hLDorqqVWwzassmuk8DAzqYuKYx91zEvDYa7JHkMxtVu+yZwGD4suG0HUTQf+ dBbV/wqn4/Ti6iKvRok/awM2egxq3wOCeRisJK0d/rzhD4FGVvxR1DillMtTLyoQbZfBChN9JQP NS9xULrwDo4o0EjfcCUWv39K5oJhzQyWbtp9oqdCn/su/PFFe/MqZkv7neLUboJQqVqggUuY8T9 0m+0FAwi7HeXPlZGKY54LikTFhGv8+Q1tjO3XDJqbLRmZjXxuoSNMR53I02cOkTtEfur207dk5u PqU8kFQ9uSI+wNPOym96FPcqi5SPQomkOAkxT1DTaDPdy9LP/KsdH6btJ2oVPH4ATfgpa/1ZL5h FjqEaVjHTPbvc7Tq5zEvipHN2jBSw3foGfVlRqGbIDxVSrv3u88KbKb0TC3yEmyALLVEY= X-Developer-Key: i=yeoreum.yun@arm.com; a=openpgp; fpr=2D83E092DD0533B85875A49D6DD5C3D15AC53133 X-Rspamd-Server: rspam02 X-Rspamd-Queue-Id: 92FFD180007 X-Stat-Signature: 1x4yyr5f46wp8gwtkn918ookhoe8hf9i X-Rspam-User: X-HE-Tag: 1789988295-928645 X-HE-Meta: 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 kmeyBB8h XJmqQofVMOTbHxK90VbBVCMTi9E+kzeKzXDA7clXEtOT98agRgRzK7oVNn92TCJrbAD6zNnCtlasfmG8TLDNeeAg4DQ4Wq+NT1dd9hIukn5x4MfLwk0vBjMBnSLpzL+UqRrh+5JAoXgAvRJlhkWZc5D+PQ9Xo6RkpajvPBDCXt8P4tF3fwQQeKs6H1xtfVuHQcBD8fduJbddTTIN8cd7FHTOsvXmTjhgdKrWBKAHSVTD1p3fszs9FEqCFUJsSvCW4tvd5glRkigwolA217sAUqMeY6xg2DyYUBM9JlCPVAnV9r438g2ctVzjy2l0g8qfSmjlSwUPxPTtarKHh6b9BdjVqxPQprk88tq3i Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Instead of using hard-coded integers in effective_prot_pXd(), use the page-table level enum so that architecture code does not need to know the numeric value of each page-table level, while also providing type safety. This also prepares for using generic MM helpers, mm_first_pgtable_level() which use symbolic names for page-table levels rather than integers. There should be no functional change. Reviewed-by: David Hildenbrand (Arm) Acked-by: Dave Hansen Signed-off-by: Yeoreum Yun --- arch/x86/mm/dump_pagetables.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/arch/x86/mm/dump_pagetables.c b/arch/x86/mm/dump_pagetables.c index 2afa7a23340e9..a18a61e732c3d 100644 --- a/arch/x86/mm/dump_pagetables.c +++ b/arch/x86/mm/dump_pagetables.c @@ -248,13 +248,13 @@ static void note_wx(struct pg_state *st, unsigned long addr) (void *)st->start_address); } -static void effective_prot(struct ptdump_state *pt_st, int level, u64 val) +static void effective_prot(struct ptdump_state *pt_st, enum pgtable_level level, u64 val) { struct pg_state *st = container_of(pt_st, struct pg_state, ptdump); pgprotval_t prot = val & PTE_FLAGS_MASK; pgprotval_t effective; - if (level > 0) { + if (level > PGTABLE_LEVEL_PGD) { pgprotval_t higher_prot = st->prot_levels[level - 1]; effective = (higher_prot & prot & (_PAGE_USER | _PAGE_RW)) | @@ -268,27 +268,27 @@ static void effective_prot(struct ptdump_state *pt_st, int level, u64 val) static void effective_prot_pte(struct ptdump_state *st, pte_t pte) { - effective_prot(st, 4, pte_val(pte)); + effective_prot(st, PGTABLE_LEVEL_PTE, pte_val(pte)); } static void effective_prot_pmd(struct ptdump_state *st, pmd_t pmd) { - effective_prot(st, 3, pmd_val(pmd)); + effective_prot(st, PGTABLE_LEVEL_PMD, pmd_val(pmd)); } static void effective_prot_pud(struct ptdump_state *st, pud_t pud) { - effective_prot(st, 2, pud_val(pud)); + effective_prot(st, PGTABLE_LEVEL_PUD, pud_val(pud)); } static void effective_prot_p4d(struct ptdump_state *st, p4d_t p4d) { - effective_prot(st, 1, p4d_val(p4d)); + effective_prot(st, PGTABLE_LEVEL_P4D, p4d_val(p4d)); } static void effective_prot_pgd(struct ptdump_state *st, pgd_t pgd) { - effective_prot(st, 0, pgd_val(pgd)); + effective_prot(st, PGTABLE_LEVEL_PGD, pgd_val(pgd)); } -- 2.43.0