drmkpi: Fix the definition of BITS_PER_LONG

Author: markjdb

sys/dev/drm/drmkpi/include/linux/bitops.h

@@ -40,13 +40,8 @@
 
 #define	BIT(nr)			(1UL << (nr))
 #define	BIT_ULL(nr)		(1ULL << (nr))
-#ifdef __LP64__
-#define	BITS_PER_LONG		64
-#else
-#define	BITS_PER_LONG		32
-#endif
-
-#define	BITS_PER_LONG_LONG	64
+#define	BITS_PER_LONG		(__SIZEOF_LONG__ * __CHAR_BIT__)
+#define	BITS_PER_LONG_LONG	(__SIZEOF_LONG_LONG__ * __CHAR_BIT__)
 
 #define	BITMAP_FIRST_WORD_MASK(start)	(~0UL << ((start) % BITS_PER_LONG))
 #define	BITMAP_LAST_WORD_MASK(n)	(~0UL >> (BITS_PER_LONG - (n)))