LCOV - code coverage report
Current view: top level - include/asm-generic/bitops - sched.h (source / functions) Hit Total Coverage
Test: gcov_data_raspi2_real_modules_combined.info Lines: 3 8 37.5 %
Date: 2020-09-30 20:25:40 Functions: 1 1 100.0 %
Branches: 1 6 16.7 %

           Branch data     Line data    Source code
       1                 :            : /* SPDX-License-Identifier: GPL-2.0 */
       2                 :            : #ifndef _ASM_GENERIC_BITOPS_SCHED_H_
       3                 :            : #define _ASM_GENERIC_BITOPS_SCHED_H_
       4                 :            : 
       5                 :            : #include <linux/compiler.h>       /* unlikely() */
       6                 :            : #include <asm/types.h>
       7                 :            : 
       8                 :            : /*
       9                 :            :  * Every architecture must define this function. It's the fastest
      10                 :            :  * way of searching a 100-bit bitmap.  It's guaranteed that at least
      11                 :            :  * one of the 100 bits is cleared.
      12                 :            :  */
      13                 :        207 : static inline int sched_find_first_bit(const unsigned long *b)
      14                 :            : {
      15                 :            : #if BITS_PER_LONG == 64
      16                 :            :         if (b[0])
      17                 :            :                 return __ffs(b[0]);
      18                 :            :         return __ffs(b[1]) + 64;
      19                 :            : #elif BITS_PER_LONG == 32
      20         [ +  - ]:        207 :         if (b[0])
      21                 :        207 :                 return __ffs(b[0]);
      22         [ #  # ]:          0 :         if (b[1])
      23                 :          0 :                 return __ffs(b[1]) + 32;
      24         [ #  # ]:          0 :         if (b[2])
      25                 :          0 :                 return __ffs(b[2]) + 64;
      26                 :          0 :         return __ffs(b[3]) + 96;
      27                 :            : #else
      28                 :            : #error BITS_PER_LONG not defined
      29                 :            : #endif
      30                 :            : }
      31                 :            : 
      32                 :            : #endif /* _ASM_GENERIC_BITOPS_SCHED_H_ */

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