6c01706217
Create include/linux/uaccess.h with stub implementations for user-space access functions. In U-Boot there's no user/kernel separation, so these are simple memory copies. Includes: - copy_from_user() - copy_to_user() - get_user() / put_user() - access_ok() Update compat.h to include uaccess.h and remove the duplicate declaration. Co-developed-by: Claude Opus 4.5 <noreply@anthropic.com> Signed-off-by: Simon Glass <simon.glass@canonical.com>
33 lines
711 B
C
33 lines
711 B
C
/* SPDX-License-Identifier: GPL-2.0-only */
|
|
#ifndef _LINUX_UACCESS_H
|
|
#define _LINUX_UACCESS_H
|
|
|
|
#include <linux/types.h>
|
|
#include <string.h>
|
|
|
|
/*
|
|
* Stub definitions for Linux kernel user-space access functions.
|
|
* In U-Boot there's no user/kernel separation, so these are simple copies.
|
|
*/
|
|
|
|
static inline unsigned long copy_from_user(void *to, const void *from,
|
|
unsigned long n)
|
|
{
|
|
memcpy(to, from, n);
|
|
return 0;
|
|
}
|
|
|
|
static inline unsigned long copy_to_user(void *to, const void *from,
|
|
unsigned long n)
|
|
{
|
|
memcpy(to, from, n);
|
|
return 0;
|
|
}
|
|
|
|
#define get_user(x, ptr) ({ x = *(ptr); 0; })
|
|
#define put_user(x, ptr) ({ *(ptr) = x; 0; })
|
|
|
|
#define access_ok(addr, size) 1
|
|
|
|
#endif /* _LINUX_UACCESS_H */
|