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https://github.com/edk2-porting/linux-next.git
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1e6760c5c4
This patch changes copy_from_user() and copy_to_user() from macros into static inline functions. This way we can use them as function pointers. Also unify the 64 bit and 32 bit versions. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
35 lines
826 B
C
35 lines
826 B
C
#ifndef __ASM_SH_UACCESS_H
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#define __ASM_SH_UACCESS_H
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#ifdef CONFIG_SUPERH32
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# include "uaccess_32.h"
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#else
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# include "uaccess_64.h"
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#endif
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static inline unsigned long
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copy_from_user(void *to, const void __user *from, unsigned long n)
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{
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unsigned long __copy_from = (unsigned long) from;
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__kernel_size_t __copy_size = (__kernel_size_t) n;
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if (__copy_size && __access_ok(__copy_from, __copy_size))
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return __copy_user(to, from, __copy_size);
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return __copy_size;
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}
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static inline unsigned long
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copy_to_user(void __user *to, const void *from, unsigned long n)
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{
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unsigned long __copy_to = (unsigned long) to;
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__kernel_size_t __copy_size = (__kernel_size_t) n;
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if (__copy_size && __access_ok(__copy_to, __copy_size))
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return __copy_user(to, from, __copy_size);
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return __copy_size;
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}
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#endif /* __ASM_SH_UACCESS_H */
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