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authorGuo Ren <ren_guo@c-sky.com>2019-01-12 11:16:27 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2019-03-14 00:02:27 +0300
commitffabf74c67967ac6c14f66d8a4f0f218c890e2cd (patch)
tree5b805cee783809b0516fbd002d3ae8816af8ddc6 /arch/riscv/mm/init.c
parent9e1f977d82eca514e71826bdb9cb34da2e687f0d (diff)
downloadlinux-ffabf74c67967ac6c14f66d8a4f0f218c890e2cd.tar.xz
riscv: fixup max_low_pfn with PFN_DOWN.
[ Upstream commit 28198c4639b39899a728ac89aea29d2a7a72562f ] max_low_pfn should be pfn_size not byte_size. Signed-off-by: Guo Ren <ren_guo@c-sky.com> Signed-off-by: Mao Han <mao_han@c-sky.com> Signed-off-by: Palmer Dabbelt <palmer@sifive.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'arch/riscv/mm/init.c')
-rw-r--r--arch/riscv/mm/init.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/riscv/mm/init.c b/arch/riscv/mm/init.c
index 58a522f9bcc3..200a4b315e15 100644
--- a/arch/riscv/mm/init.c
+++ b/arch/riscv/mm/init.c
@@ -29,7 +29,8 @@ static void __init zone_sizes_init(void)
unsigned long max_zone_pfns[MAX_NR_ZONES] = { 0, };
#ifdef CONFIG_ZONE_DMA32
- max_zone_pfns[ZONE_DMA32] = PFN_DOWN(min(4UL * SZ_1G, max_low_pfn));
+ max_zone_pfns[ZONE_DMA32] = PFN_DOWN(min(4UL * SZ_1G,
+ (unsigned long) PFN_PHYS(max_low_pfn)));
#endif
max_zone_pfns[ZONE_NORMAL] = max_low_pfn;