tile: replace some BUG_ON checks with BUILD_BUG_ON checks

Some BUG_ON checks can be detected at compile time rather than
at runtime.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>

diff --git a/arch/tile/lib/atomic_32.c b/arch/tile/lib/atomic_32.c
index 8040b42..7a5cc70 100644 (file)
--- a/arch/tile/lib/atomic_32.c
+++ b/arch/tile/lib/atomic_32.c
@@ -300,7 +300,7 @@ void __init __init_atomic_per_cpu(void)
 #else /* ATOMIC_LOCKS_FOUND_VIA_TABLE() */
 
        /* Validate power-of-two and "bigger than cpus" assumption */
-       BUG_ON(ATOMIC_HASH_SIZE & (ATOMIC_HASH_SIZE-1));
+       BUILD_BUG_ON(ATOMIC_HASH_SIZE & (ATOMIC_HASH_SIZE-1));
        BUG_ON(ATOMIC_HASH_SIZE < nr_cpu_ids);
 
        /*
@@ -314,17 +314,17 @@ void __init __init_atomic_per_cpu(void)
        BUG_ON((unsigned long)atomic_locks % PAGE_SIZE != 0);
 
        /* The locks must all fit on one page. */
-       BUG_ON(ATOMIC_HASH_SIZE * sizeof(int) > PAGE_SIZE);
+       BUILD_BUG_ON(ATOMIC_HASH_SIZE * sizeof(int) > PAGE_SIZE);
 
        /*
         * We use the page offset of the atomic value's address as
         * an index into atomic_locks, excluding the low 3 bits.
         * That should not produce more indices than ATOMIC_HASH_SIZE.
         */
-       BUG_ON((PAGE_SIZE >> 3) > ATOMIC_HASH_SIZE);
+       BUILD_BUG_ON((PAGE_SIZE >> 3) > ATOMIC_HASH_SIZE);
 
 #endif /* ATOMIC_LOCKS_FOUND_VIA_TABLE() */
 
        /* The futex code makes this assumption, so we validate it here. */
-       BUG_ON(sizeof(atomic_t) != sizeof(int));
+       BUILD_BUG_ON(sizeof(atomic_t) != sizeof(int));
 }