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[uaccess] Remove redundant read_user()

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Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Michael Brown
2025-04-21 18:55:30 +01:00
parent 050df80bbc
commit 04d0b2fdf9
4 changed files with 11 additions and 25 deletions
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9
src/core/posix_io.c
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@@ -254,15 +254,14 @@ int select ( fd_set *readfds, int wait ) {
/**
* Read data from file
*
* @v buffer Data buffer
* @v offset Starting offset within data buffer
* @v len Maximum length to read
* @v buf Data buffer
* @v max_len Maximum length to read
* @ret len Actual length read, or negative error number
*
* This call is non-blocking; if no data is available to read then
* -EWOULDBLOCK will be returned.
*/
ssize_t read_user ( int fd, userptr_t buffer, off_t offset, size_t max_len ) {
ssize_t read ( int fd, void *buf, size_t max_len ) {
struct posix_file *file;
struct io_buffer *iobuf;
size_t len;
@@ -281,7 +280,7 @@ ssize_t read_user ( int fd, userptr_t buffer, off_t offset, size_t max_len ) {
len = iob_len ( iobuf );
if ( len > max_len )
len = max_len;
copy_to_user ( buffer, offset, iobuf->data, len );
memcpy ( buf, iobuf->data, len );
iob_pull ( iobuf, len );
if ( ! iob_len ( iobuf ) ) {
list_del ( &iobuf->list );