CSUM_PARTIAL_COPY_FROM_USER
Section: (9)
Updated: 09 October 2005
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NAME
csum_partial_copy_from_user - Copy and checksum from user space.
SYNOPSIS
"SYNOPSIS"
unsigned int csum_partial_copy_from_user (const unsigned char __user * src, unsigned char * dst, int len, unsigned int isum, int * errp);
ARGUMENTS
- src
-
source address (user space)
- dst
-
destination address
- len
-
number of bytes to be copied.
- isum
-
initial sum that is added into the result (32bit unfolded)
- errp
-
set to -EFAULT for an bad source address.
DESCRIPTION
Returns an 32bit unfolded checksum of the buffer.
src and dst are best aligned to 64bits.
Index
- NAME
-
- SYNOPSIS
-
- ARGUMENTS
-
- DESCRIPTION
-
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Time: 00:02:02 GMT, October 09, 2005