1 files changed, 9 insertions, 4 deletions

diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
index 7c155c254e72..4356ceb1e366 100644
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -304,10 +304,8 @@ static void __init setup_bootmem(void)
          */
         max_low_pfn = max_pfn;
 
-        if ((bootmap_pfn - bootmap_start_pfn) != bootmap_pages) {
-                printk(KERN_WARNING "WARNING! bootmap sizing is messed up!\n");
-                BUG();
-        }
+        /* bootmap sizing messed up? */
+        BUG_ON((bootmap_pfn - bootmap_start_pfn) != bootmap_pages);
 
         /* reserve PAGE0 pdc memory, kernel text/data/bss & bootmap */
 
@@ -458,6 +456,13 @@ void __init mem_init(void)
 {
         int codesize, reservedpages, datasize, initsize;
 
+        /* Do sanity checks on page table constants */
+        BUILD_BUG_ON(PTE_ENTRY_SIZE != sizeof(pte_t));
+        BUILD_BUG_ON(PMD_ENTRY_SIZE != sizeof(pmd_t));
+        BUILD_BUG_ON(PGD_ENTRY_SIZE != sizeof(pgd_t));
+        BUILD_BUG_ON(PAGE_SHIFT + BITS_PER_PTE + BITS_PER_PMD + BITS_PER_PGD
+                        > BITS_PER_LONG);
+
         high_memory = __va((max_pfn << PAGE_SHIFT));
 
 #ifndef CONFIG_DISCONTIGMEM