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powerpc/book3s/32: fix number of bats in p/v_block_mapped()

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[ Upstream commit e93ba1b7eb ]

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 <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Christophe Leroy
2018-11-16 17:27:42 +00:00
committed by Greg Kroah-Hartman
parent a2773e0f82
commit dbf29e9ba3
1 changed files with 2 additions and 2 deletions
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4
arch/powerpc/mm/ppc_mmu_32.c
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@@ -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)