From: Alexander Gordeev agordeev@linux.ibm.com
[ Upstream commit 9de209c7d584d6e06ad92f120d83d4f27c200497 ]
Due to historical reasons os_info handling functions misuse the notion of physical vs virtual addresses difference.
Note: this does not fix a bug currently, since virtual and physical addresses are identical.
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/os_info.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/s390/kernel/os_info.c b/arch/s390/kernel/os_info.c index e548844dde28..6b5b64e67eee 100644 --- a/arch/s390/kernel/os_info.c +++ b/arch/s390/kernel/os_info.c @@ -46,7 +46,7 @@ void os_info_crashkernel_add(unsigned long base, unsigned long size) */ void os_info_entry_add(int nr, void *ptr, u64 size) { - os_info.entry[nr].addr = (u64)(unsigned long)ptr; + os_info.entry[nr].addr = __pa(ptr); os_info.entry[nr].size = size; os_info.entry[nr].csum = (__force u32)csum_partial(ptr, size, 0); os_info.csum = os_info_csum(&os_info); @@ -63,7 +63,7 @@ void __init os_info_init(void) os_info.version_minor = OS_INFO_VERSION_MINOR; os_info.magic = OS_INFO_MAGIC; os_info.csum = os_info_csum(&os_info); - mem_assign_absolute(S390_lowcore.os_info, (unsigned long) ptr); + mem_assign_absolute(S390_lowcore.os_info, __pa(ptr)); }
#ifdef CONFIG_CRASH_DUMP