return 0;
}
+/*
+ * Copy kernel to iovec. Returns -EFAULT on error.
+ */
+
+int memcpy_toiovecend(const struct iovec *iov, unsigned char *kdata,
+ int offset, int len)
+{
+ int copy;
+ for (; len > 0; ++iov) {
+ /* Skip over the finished iovecs */
+ if (unlikely(offset >= iov->iov_len)) {
+ offset -= iov->iov_len;
+ continue;
+ }
+ copy = min_t(unsigned int, iov->iov_len - offset, len);
+ if (copy_to_user(iov->iov_base + offset, kdata, copy))
+ return -EFAULT;
+ offset = 0;
+ kdata += copy;
+ len -= copy;
+ }
+
+ return 0;
+}
+
/*
* Copy iovec to kernel. Returns -EFAULT on error.
*
}
/*
- * For use with ip_build_xmit
+ * Copy iovec from kernel. Returns -EFAULT on error.
*/
-int memcpy_fromiovecend(unsigned char *kdata, struct iovec *iov, int offset,
- int len)
+
+int memcpy_fromiovecend(unsigned char *kdata, const struct iovec *iov,
+ int offset, int len)
{
/* Skip over the finished iovecs */
while (offset >= iov->iov_len) {
EXPORT_SYMBOL(memcpy_fromiovec);
EXPORT_SYMBOL(memcpy_fromiovecend);
EXPORT_SYMBOL(memcpy_toiovec);
+EXPORT_SYMBOL(memcpy_toiovecend);