1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _ASM_GENERIC_FLAT_H
3 #define _ASM_GENERIC_FLAT_H
4
5 #include <linux/uaccess.h>
6
7 static inline int flat_get_addr_from_rp(u32 __user *rp, u32 relval, u32 flags,
8 u32 *addr)
9 {
10 #ifndef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
11 return copy_from_user(addr, rp, 4) ? -EFAULT : 0;
12 #else
13 return get_user(*addr, rp);
14 #endif
15 }
16
17 static inline int flat_put_addr_at_rp(u32 __user *rp, u32 addr, u32 rel)
18 {
19 #ifndef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
20 return copy_to_user(rp, &addr, 4) ? -EFAULT : 0;
21 #else
22 return put_user(addr, rp);
23 #endif
24 }
25
26 #endif /* _ASM_GENERIC_FLAT_H */
27
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