diff options
Diffstat (limited to 'net/core/iovec.c')
| -rw-r--r-- | net/core/iovec.c | 47 |
1 files changed, 0 insertions, 47 deletions
diff --git a/net/core/iovec.c b/net/core/iovec.c index e1ec45ab1e63..dcbe98b3726a 100644 --- a/net/core/iovec.c +++ b/net/core/iovec.c @@ -28,53 +28,6 @@ #include <net/sock.h> /* - * Verify iovec. The caller must ensure that the iovec is big enough - * to hold the message iovec. - * - * Save time not doing access_ok. copy_*_user will make this work - * in any case. - */ - -int verify_iovec(struct msghdr *m, struct iovec *iov, struct sockaddr_storage *address, int mode) -{ - int size, ct, err; - - if (m->msg_name && m->msg_namelen) { - if (mode == VERIFY_READ) { - void __user *namep; - namep = (void __user __force *) m->msg_name; - err = move_addr_to_kernel(namep, m->msg_namelen, - address); - if (err < 0) - return err; - } - m->msg_name = address; - } else { - m->msg_name = NULL; - m->msg_namelen = 0; - } - - size = m->msg_iovlen * sizeof(struct iovec); - if (copy_from_user(iov, (void __user __force *) m->msg_iov, size)) - return -EFAULT; - - m->msg_iov = iov; - err = 0; - - for (ct = 0; ct < m->msg_iovlen; ct++) { - size_t len = iov[ct].iov_len; - - if (len > INT_MAX - err) { - len = INT_MAX - err; - iov[ct].iov_len = len; - } - err += len; - } - - return err; -} - -/* * And now for the all-in-one: copy and checksum from a user iovec * directly to a datagram * Calls to csum_partial but the last must be in 32 bit chunks |