File: flat.h

package info (click to toggle)
linux 6.18.3-1
  • links: PTS, VCS
  • area: main
  • in suites: sid
  • size: 1,742,780 kB
  • sloc: ansic: 26,780,494; asm: 272,079; sh: 148,752; python: 79,241; makefile: 57,741; perl: 36,527; xml: 19,542; cpp: 5,911; yacc: 4,939; lex: 2,950; awk: 1,607; sed: 30; ruby: 25
file content (26 lines) | stat: -rw-r--r-- 610 bytes parent folder | download | duplicates (33)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_GENERIC_FLAT_H
#define _ASM_GENERIC_FLAT_H

#include <linux/uaccess.h>

static inline int flat_get_addr_from_rp(u32 __user *rp, u32 relval, u32 flags,
		u32 *addr)
{
#ifndef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
	return copy_from_user(addr, rp, 4) ? -EFAULT : 0;
#else
	return get_user(*addr, rp);
#endif
}

static inline int flat_put_addr_at_rp(u32 __user *rp, u32 addr, u32 rel)
{
#ifndef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
	return copy_to_user(rp, &addr, 4) ? -EFAULT : 0;
#else
	return put_user(addr, rp);
#endif
}

#endif /* _ASM_GENERIC_FLAT_H */