From 2585fe4893a0c4c18f0727a8185c5281c8a7c59e Mon Sep 17 00:00:00 2001 From: Christophe Leroy Date: Fri, 16 Nov 2018 17:27:42 +0000 Subject: [PATCH] powerpc/book3s/32: fix number of bats in p/v_block_mapped() [ Upstream commit e93ba1b7eb5b188c749052df7af1c90821c5f320 ] This patch fixes the loop in p_block_mapped() and v_block_mapped() to scan the entire bat_addrs[] array. Signed-off-by: Christophe Leroy Signed-off-by: Michael Ellerman Signed-off-by: Sasha Levin --- arch/powerpc/mm/ppc_mmu_32.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/powerpc/mm/ppc_mmu_32.c b/arch/powerpc/mm/ppc_mmu_32.c index 2a049fb8523d..96c52271e9c2 100644 --- a/arch/powerpc/mm/ppc_mmu_32.c +++ b/arch/powerpc/mm/ppc_mmu_32.c @@ -52,7 +52,7 @@ struct batrange { /* stores address ranges mapped by BATs */ phys_addr_t v_block_mapped(unsigned long va) { int b; - for (b = 0; b < 4; ++b) + for (b = 0; b < ARRAY_SIZE(bat_addrs); ++b) if (va >= bat_addrs[b].start && va < bat_addrs[b].limit) return bat_addrs[b].phys + (va - bat_addrs[b].start); return 0; @@ -64,7 +64,7 @@ phys_addr_t v_block_mapped(unsigned long va) unsigned long p_block_mapped(phys_addr_t pa) { int b; - for (b = 0; b < 4; ++b) + for (b = 0; b < ARRAY_SIZE(bat_addrs); ++b) if (pa >= bat_addrs[b].phys && pa < (bat_addrs[b].limit-bat_addrs[b].start) +bat_addrs[b].phys) -- 2.20.1