cregit-Linux how code gets into the kernel

Release 4.14 arch/sh/include/asm/uaccess_64.h

#ifndef __ASM_SH_UACCESS_64_H

#define __ASM_SH_UACCESS_64_H

/*
 * include/asm-sh/uaccess_64.h
 *
 * Copyright (C) 2000, 2001  Paolo Alberelli
 * Copyright (C) 2003, 2004  Paul Mundt
 *
 * User space memory access functions
 *
 * Copyright (C) 1999  Niibe Yutaka
 *
 *  Based on:
 *     MIPS implementation version 1.15 by
 *              Copyright (C) 1996, 1997, 1998 by Ralf Baechle
 *     and i386 version.
 *
 * This file is subject to the terms and conditions of the GNU General Public
 * License.  See the file "COPYING" in the main directory of this archive
 * for more details.
 */


#define __get_user_size(x,ptr,size,retval)			\
do {                                                            \
        retval = 0;                                             \
        x = 0;                                                  \
        switch (size) {                                         \
        case 1:                                                 \
                retval = __get_user_asm_b((void *)&x,           \
                                          (long)ptr);           \
                break;                                          \
        case 2:                                                 \
                retval = __get_user_asm_w((void *)&x,           \
                                          (long)ptr);           \
                break;                                          \
        case 4:                                                 \
                retval = __get_user_asm_l((void *)&x,           \
                                          (long)ptr);           \
                break;                                          \
        case 8:                                                 \
                retval = __get_user_asm_q((void *)&x,           \
                                          (long)ptr);           \
                break;                                          \
        default:                                                \
                __get_user_unknown();                           \
                break;                                          \
        }                                                       \
} while (0)

extern long __get_user_asm_b(void *, long);
extern long __get_user_asm_w(void *, long);
extern long __get_user_asm_l(void *, long);
extern long __get_user_asm_q(void *, long);
extern void __get_user_unknown(void);


#define __put_user_size(x,ptr,size,retval)			\
do {                                                            \
        retval = 0;                                             \
        switch (size) {                                         \
        case 1:                                                 \
                retval = __put_user_asm_b((void *)&x,           \
                                          (__force long)ptr);   \
                break;                                          \
        case 2:                                                 \
                retval = __put_user_asm_w((void *)&x,           \
                                          (__force long)ptr);   \
                break;                                          \
        case 4:                                                 \
                retval = __put_user_asm_l((void *)&x,           \
                                          (__force long)ptr);   \
                break;                                          \
        case 8:                                                 \
                retval = __put_user_asm_q((void *)&x,           \
                                          (__force long)ptr);   \
                break;                                          \
        default:                                                \
                __put_user_unknown();                           \
        }                                                       \
} while (0)

extern long __put_user_asm_b(void *, long);
extern long __put_user_asm_w(void *, long);
extern long __put_user_asm_l(void *, long);
extern long __put_user_asm_q(void *, long);
extern void __put_user_unknown(void);

#endif /* __ASM_SH_UACCESS_64_H */

Overall Contributors

PersonTokensPropCommitsCommitProp
Paul Mundt13098.48%250.00%
Michael S. Tsirkin10.76%125.00%
Al Viro10.76%125.00%
Total132100.00%4100.00%
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