percpu: fix compile warnings

Fix the following two compile warnings which show up on i386.

mm/percpu.c:1873: warning: comparison of distinct pointer types lacks a cast
mm/percpu.c:1879: warning: format '%lx' expects type 'long unsigned int', but argument 2 has type 'size_t'

Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Randy Dunlap <randy.dunlap@oracle.com>

diff --git a/mm/percpu.c b/mm/percpu.c
index 4a048ab..6af78c1 100644 (file)
--- a/mm/percpu.c
+++ b/mm/percpu.c
@@ -1870,13 +1870,14 @@ int __init pcpu_embed_first_chunk(size_t reserved_size, ssize_t dyn_size,
        max_distance = 0;
        for (group = 0; group < ai->nr_groups; group++) {
                ai->groups[group].base_offset = areas[group] - base;
-               max_distance = max(max_distance, ai->groups[group].base_offset);
+               max_distance = max_t(size_t, max_distance,
+                                    ai->groups[group].base_offset);
        }
        max_distance += ai->unit_size;
 
        /* warn if maximum distance is further than 75% of vmalloc space */
        if (max_distance > (VMALLOC_END - VMALLOC_START) * 3 / 4) {
-               pr_warning("PERCPU: max_distance=0x%lx too large for vmalloc "
+               pr_warning("PERCPU: max_distance=0x%zx too large for vmalloc "
                           "space 0x%lx\n",
                           max_distance, VMALLOC_END - VMALLOC_START);
 #ifdef CONFIG_NEED_PER_CPU_PAGE_FIRST_CHUNK