Let the caller check whether it can pass MHP_MEMMAP_ON_MEMORY by
checking mhp_supports_memmap_on_memory().
MHP_MEMMAP_ON_MEMORY can only be set in case
ARCH_MHP_MEMMAP_ON_MEMORY_ENABLE is enabled, the architecture supports
altmap, and the range to be added spans a single memory block.
Signed-off-by: Oscar Salvador <osalva...@suse.de>
---
drivers/acpi/acpi_memhotplug.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/acpi/acpi_memhotplug.c b/drivers/acpi/acpi_memhotplug.c
index b02fd51e5589..8cc195c4c861 100644
--- a/drivers/acpi/acpi_memhotplug.c
+++ b/drivers/acpi/acpi_memhotplug.c
@@ -171,6 +171,7 @@ static int acpi_memory_enable_device(struct
acpi_memory_device *mem_device)
acpi_handle handle = mem_device->device->handle;
int result, num_enabled = 0;
struct acpi_memory_info *info;
+ mhp_t mhp_flags = MHP_NONE;
int node;
node = acpi_get_node(handle);
@@ -194,8 +195,10 @@ static int acpi_memory_enable_device(struct
acpi_memory_device *mem_device)
if (node < 0)
node = memory_add_physaddr_to_nid(info->start_addr);
+ if (mhp_supports_memmap_on_memory(info->length))
+ mhp_flags |= MHP_MEMMAP_ON_MEMORY;
result = __add_memory(node, info->start_addr, info->length,
- MHP_NONE);
+ mhp_flags);
/*
* If the memory block has been used by the kernel, add_memory()
--
2.26.2
