Line data    Source code

       1             : // SPDX-License-Identifier: GPL-2.0-only
       2             : /*
       3             :  * A generic implementation of binary search for the Linux kernel
       4             :  *
       5             :  * Copyright (C) 2008-2009 Ksplice, Inc.
       6             :  * Author: Tim Abbott <tabbott@ksplice.com>
       7             :  */
       8             : 
       9             : #include <linux/export.h>
      10             : #include <linux/bsearch.h>
      11             : #include <linux/kprobes.h>
      12             : 
      13             : /*
      14             :  * bsearch - binary search an array of elements
      15             :  * @key: pointer to item being searched for
      16             :  * @base: pointer to first element to search
      17             :  * @num: number of elements
      18             :  * @size: size of each element
      19             :  * @cmp: pointer to comparison function
      20             :  *
      21             :  * This function does a binary search on the given array.  The
      22             :  * contents of the array should already be in ascending sorted order
      23             :  * under the provided comparison function.
      24             :  *
      25             :  * Note that the key need not have the same type as the elements in
      26             :  * the array, e.g. key could be a string and the comparison function
      27             :  * could compare the string with the struct's name field.  However, if
      28             :  * the key and elements in the array are of the same type, you can use
      29             :  * the same comparison function for both sort() and bsearch().
      30             :  */
      31         611 : void *bsearch(const void *key, const void *base, size_t num, size_t size, cmp_func_t cmp)
      32             : {
      33         611 :         return __inline_bsearch(key, base, num, size, cmp);
      34             : }
      35             : EXPORT_SYMBOL(bsearch);
      36             : NOKPROBE_SYMBOL(bsearch);