staging/rts5208/general.c

0001 // SPDX-License-Identifier: GPL-2.0+
0002 /*
0003  * Driver for Realtek PCI-Express card reader
0004  *
0005  * Copyright(c) 2009-2013 Realtek Semiconductor Corp. All rights reserved.
0006  *
0007  * Author:
0008  *   Wei WANG (wei_wang@realsil.com.cn)
0009  *   Micky Ching (micky_ching@realsil.com.cn)
0010  */
0011
0012 #include "general.h"
0013
0014 int bit1cnt_long(u32 data)
0015 {
0016     int i, cnt = 0;
0017
0018     for (i = 0; i < 32; i++) {
0019         if (data & 0x01)
0020             cnt++;
0021         data >>= 1;
0022     }
0023     return cnt;
0024 }
0025