46 lines
1.1 KiB
C
46 lines
1.1 KiB
C
#include "asm/uaccess.h"
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#include "linux/errno.h"
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#include "linux/module.h"
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extern unsigned int arch_csum_partial(const char *buff, int len, int sum);
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extern unsigned int csum_partial(char *buff, int len, int sum)
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{
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return(arch_csum_partial(buff, len, sum));
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}
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EXPORT_SYMBOL(csum_partial);
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unsigned int csum_partial_copy_to(const char *src, char *dst, int len,
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int sum, int *err_ptr)
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{
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if(copy_to_user(dst, src, len)){
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*err_ptr = -EFAULT;
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return(-1);
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}
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return(arch_csum_partial(src, len, sum));
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}
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unsigned int csum_partial_copy_from(const char *src, char *dst, int len,
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int sum, int *err_ptr)
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{
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if(copy_from_user(dst, src, len)){
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*err_ptr = -EFAULT;
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return(-1);
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}
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return(arch_csum_partial(dst, len, sum));
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}
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/*
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* Overrides for Emacs so that we follow Linus's tabbing style.
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* Emacs will notice this stuff at the end of the file and automatically
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* adjust the settings for this buffer only. This must remain at the end
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* of the file.
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* ---------------------------------------------------------------------------
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* Local variables:
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* c-file-style: "linux"
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* End:
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*/
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