02da283302
This way only the two architectures that do masking need to provide the helper. Signed-off-by: Christoph Hellwig <hch@lst.de> Tested-by: Vladimir Murzin <vladimir.murzin@arm.com> Reviewed-by: Vladimir Murzin <vladimir.murzin@arm.com> Signed-off-by: Greg Ungerer <gerg@linux-m68k.org>
34 lines
770 B
C
34 lines
770 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* arch/arm/include/asm/flat.h -- uClinux flat-format executables
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*/
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#ifndef __ARM_FLAT_H__
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#define __ARM_FLAT_H__
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#include <linux/uaccess.h>
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#define flat_argvp_envp_on_stack() 1
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#define flat_old_ram_flag(flags) (flags)
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static inline int flat_get_addr_from_rp(u32 __user *rp, u32 relval, u32 flags,
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u32 *addr, u32 *persistent)
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{
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#ifndef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
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return copy_from_user(addr, rp, 4) ? -EFAULT : 0;
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#else
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return get_user(*addr, rp);
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#endif
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}
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static inline int flat_put_addr_at_rp(u32 __user *rp, u32 addr, u32 rel)
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{
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#ifndef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
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return copy_to_user(rp, &addr, 4) ? -EFAULT : 0;
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#else
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return put_user(addr, rp);
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#endif
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}
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#endif /* __ARM_FLAT_H__ */
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