From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sat, 16 Apr 2005 15:20:36 -0700 Subject: Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip! --- arch/um/kernel/checksum.c | 36 ++++++++++++++++++++++++++++++++++++ 1 file changed, 36 insertions(+) create mode 100644 arch/um/kernel/checksum.c (limited to 'arch/um/kernel/checksum.c') diff --git a/arch/um/kernel/checksum.c b/arch/um/kernel/checksum.c new file mode 100644 index 000000000000..e69b2be951d1 --- /dev/null +++ b/arch/um/kernel/checksum.c @@ -0,0 +1,36 @@ +#include "asm/uaccess.h" +#include "linux/errno.h" +#include "linux/module.h" + +unsigned int arch_csum_partial(const unsigned char *buff, int len, int sum); + +unsigned int csum_partial(unsigned char *buff, int len, int sum) +{ + return arch_csum_partial(buff, len, sum); +} + +EXPORT_SYMBOL(csum_partial); + +unsigned int csum_partial_copy_to(const unsigned char *src, + unsigned char __user *dst, int len, int sum, + int *err_ptr) +{ + if(copy_to_user(dst, src, len)){ + *err_ptr = -EFAULT; + return(-1); + } + + return(arch_csum_partial(src, len, sum)); +} + +unsigned int csum_partial_copy_from(const unsigned char __user *src, + unsigned char *dst, int len, int sum, + int *err_ptr) +{ + if(copy_from_user(dst, src, len)){ + *err_ptr = -EFAULT; + return(-1); + } + + return arch_csum_partial(dst, len, sum); +} -- cgit v1.2.2