pstore/ram: Use memcpy_toio instead of memcpy

persistent_ram_update uses vmap / iomap based on whether the buffer is in
memory region or reserved region. However, both map it as non-cacheable
memory. For armv8 specifically, non-cacheable mapping requests use a
memory type that has to be accessed aligned to the request size. memcpy()
doesn't guarantee that.

Signed-off-by: Furquan Shaikh <[email protected]>
Signed-off-by: Enric Balletbo Serra <[email protected]>
Reviewed-by: Aaron Durbin <[email protected]>
Reviewed-by: Olof Johansson <[email protected]>
Tested-by: Furquan Shaikh <[email protected]>
Signed-off-by: Kees Cook <[email protected]>
Cc: [email protected]

0 files changed, 0 insertions, 0 deletions