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- #include <linux/export.h>
- #include <linux/kernel.h>
- int __weak __ctzsi2(int val);
- int __weak __ctzsi2(int val)
- {
- return __ffs(val);
- }
- EXPORT_SYMBOL(__ctzsi2);
- int __weak __clzsi2(int val);
- int __weak __clzsi2(int val)
- {
- return 32 - fls(val);
- }
- EXPORT_SYMBOL(__clzsi2);
- int __weak __clzdi2(long val);
- int __weak __ctzdi2(long val);
- #if BITS_PER_LONG == 32
- int __weak __clzdi2(long val)
- {
- return 32 - fls((int)val);
- }
- EXPORT_SYMBOL(__clzdi2);
- int __weak __ctzdi2(long val)
- {
- return __ffs((u32)val);
- }
- EXPORT_SYMBOL(__ctzdi2);
- #elif BITS_PER_LONG == 64
- int __weak __clzdi2(long val)
- {
- return 64 - fls64((u64)val);
- }
- EXPORT_SYMBOL(__clzdi2);
- int __weak __ctzdi2(long val)
- {
- return __ffs64((u64)val);
- }
- EXPORT_SYMBOL(__ctzdi2);
- #else
- #error BITS_PER_LONG not 32 or 64
- #endif
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