diff options
| author |   Zhi Yong Wu <wuzhy@linux.vnet.ibm.com> | 2013-12-07 04:54:59 +0800 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2013-12-09 20:35:42 -0500 |
| commit | 41e4af69a5984a3193ba3108fb4e067b0e34dc73 (patch) | |
| tree | 8f0ab590e83d6a9fc0e550dcebf71bb1f435aaa1 /drivers/net/macvtap.c | |
| parent | xen-netback: improve guest-receive-side flow control (diff) | |
| download | linux-dev-41e4af69a5984a3193ba3108fb4e067b0e34dc73.tar.xz linux-dev-41e4af69a5984a3193ba3108fb4e067b0e34dc73.zip | |
macvtap: remove useless codes in macvtap_aio_read() and macvtap_recvmsg()
By checking related codes, it is impossible that ret > len or total_len,
so we should remove some useless coeds in both above functions.
Signed-off-by: Zhi Yong Wu <wuzhy@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/macvtap.c')
| -rw-r--r-- | drivers/net/macvtap.c | 5 |
1 files changed, 0 insertions, 5 deletions
diff --git a/drivers/net/macvtap.c b/drivers/net/macvtap.c index 4a34bcb6549f..2aa5e973ef17 100644 --- a/drivers/net/macvtap.c +++ b/drivers/net/macvtap.c @@ -871,7 +871,6 @@ static ssize_t macvtap_aio_read(struct kiocb *iocb, const struct iovec *iv, } ret = macvtap_do_read(q, iv, len, file->f_flags & O_NONBLOCK); - ret = min_t(ssize_t, ret, len); /* XXX copied from tun.c. Why? */ if (ret > 0) iocb->ki_pos = ret; out: @@ -1106,10 +1105,6 @@ static int macvtap_recvmsg(struct kiocb *iocb, struct socket *sock, return -EINVAL; ret = macvtap_do_read(q, m->msg_iov, total_len, flags & MSG_DONTWAIT); - if (ret > total_len) { - m->msg_flags |= MSG_TRUNC; - ret = flags & MSG_TRUNC ? ret : total_len; - } return ret; } |