[PATCH 5.15 060/230] s390/setup: use physical pointers for memblock_reserve()

Greg Kroah-Hartman
2022-07-11T09:45:35Z

From: Alexander Gordeev <agordeev@linux.ibm.com>

[ Upstream commit 04f11ed7d8e018e1f01ebda5814ddfeb3a1e6ae1 ]

memblock_reserve() function accepts physcal address of a memory
block to be reserved, but provided with virtual memory pointers.

Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/s390/kernel/setup.c | 7 ++-----
1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index e38de9e8ee13..2ebde341d057 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -797,13 +797,10 @@ static void __init check_initrd(void)
*/
static void __init reserve_kernel(void)
{
- unsigned long start_pfn = PFN_UP(__pa(_end));
-
memblock_reserve(0, STARTUP_NORMAL_OFFSET);
- memblock_reserve((unsigned long)sclp_early_sccb, EXT_SCCB_READ_SCP);
memblock_reserve(__amode31_base, __eamode31 - __samode31);
- memblock_reserve((unsigned long)_stext, PFN_PHYS(start_pfn)
- - (unsigned long)_stext);
+ memblock_reserve(__pa(sclp_early_sccb), EXT_SCCB_READ_SCP);
+ memblock_reserve(__pa(_stext), _end - _stext);
}

static void __init setup_memory(void)
--
2.35.1