38 pub unsafe fn copy_to_user(dest: VirtAddr, src: &[u8]) -> Result<usize, SystemError> {  in copy_to_user()
39     verify_area(dest, src.len()).map_err(|_| SystemError::EFAULT)?;  in copy_to_user()
43     p.copy_from_nonoverlapping(src.as_ptr(), src.len());  in copy_to_user()
44     return Ok(src.len());  in copy_to_user()
48 pub unsafe fn copy_from_user(dst: &mut [u8], src: VirtAddr) -> Result<usize, SystemError> {  in copy_from_user()
49     verify_area(src, dst.len()).map_err(|_| SystemError::EFAULT)?;  in copy_from_user()
51     let src: &[u8] = core::slice::from_raw_parts(src.data() as *const u8, dst.len());  in copy_from_user()  localVariable
53     dst.copy_from_slice(src);  in copy_from_user()
241     fn convert_with_offset<T>(&self, src: &[u8], offset: usize) -> Result<&[T], SystemError> {  in convert_with_offset()
242         if offset >= src.len() {  in convert_with_offset()
245         let byte_buffer: &[u8] = &src[offset..];  in convert_with_offset()
259     fn convert_one_with_offset<T>(&self, src: &[u8], offset: usize) -> Result<&T, SystemError> {  in convert_one_with_offset()
260         if offset + core::mem::size_of::<T>() > src.len() {  in convert_one_with_offset()
263         let byte_buffer: &[u8] = &src[offset..offset + core::mem::size_of::<T>()];  in convert_one_with_offset()
300         src: &[T],  in copy_to_user()
304         dst.copy_from_slice(src);  in copy_to_user()
305         return Ok(src.len());  in copy_to_user()
316         src: &T,  in copy_one_to_user()
320         dst.clone_from(src);  in copy_one_to_user()
328     fn convert_with_offset<T>(src: &mut [u8], offset: usize) -> Result<&mut [T], SystemError> {  in convert_with_offset()
329         if offset >= src.len() {  in convert_with_offset()
332         let byte_buffer: &mut [u8] = &mut src[offset..];  in convert_with_offset()
346     fn convert_one_with_offset<T>(src: &mut [u8], offset: usize) -> Result<&mut T, SystemError> {  in convert_one_with_offset()
347         if offset + core::mem::size_of::<T>() > src.len() {  in convert_one_with_offset()
350         let byte_buffer: &mut [u8] = &mut src[offset..offset + core::mem::size_of::<T>()];  in convert_one_with_offset()