This patch fixes pfn_to_kaddr() to use phys_addr_t. Without this,
this macro is broken on LPAE systems. For physical addresses above
first 4GB result of shifting pfn with PAGE_SHIFT may be truncated.
Signed-off-by: Vitaly Andrianov <vitalya@ti.com> Acked-by: Nicolas Pitre <nico@linaro.org> Acked-by: Santosh Shilimkar <ssantosh@kernel.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>