powerpc: Allow mem=x cmdline to work with 4G+

We're currently choking on mem=4g (and above) due to memory_limit
being specified as an unsigned long. Make memory_limit
phys_addr_t to fix this.

Signed-off-by: Becky Bruce <beckyb@kernel.crashing.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

1 files changed, 2 insertions, 2 deletions

diff --git a/arch/powerpc/kernel/machine_kexec.c b/arch/powerpc/kernel/machine_kexec.c
index d59e2b1bdcba..bb3d893a8353 100644
--- a/arch/powerpc/kernel/machine_kexec.c
+++ b/arch/powerpc/kernel/machine_kexec.c
@@ -125,8 +125,8 @@ void __init reserve_crashkernel(void)
         /* Crash kernel trumps memory limit */
         if (memory_limit && memory_limit <= crashk_res.end) {
                 memory_limit = crashk_res.end + 1;
-                printk("Adjusted memory limit for crashkernel, now 0x%lx\n",
-                                memory_limit);
+                printk("Adjusted memory limit for crashkernel, now 0x%llx\n",
+                       (unsigned long long)memory_limit);
         }
 
         printk(KERN_INFO "Reserving %ldMB of memory at %ldMB "