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| author | Akihiko Odaki <akihiko.odaki@daynix.com> | 2024-04-28 16:00:44 +0900 |
|---|---|---|
| committer | Jason Wang <jasowang@redhat.com> | 2024-06-04 15:14:25 +0800 |
| commit | 52a7ff526964e7810ec1ccc71efbdd60952dd20b (patch) | |
| tree | 8cef0a19baaeade8ecfac931edcbc3c2497c0574 /net/tap-linux.c | |
| parent | 3ab42e46acf867c45bc929fcc37693e327a35a24 (diff) | |
| download | qemu-52a7ff526964e7810ec1ccc71efbdd60952dd20b.zip qemu-52a7ff526964e7810ec1ccc71efbdd60952dd20b.tar.gz qemu-52a7ff526964e7810ec1ccc71efbdd60952dd20b.tar.bz2 | |
tap: Remove tap_probe_vnet_hdr_len()
It was necessary since an Linux older than 2.6.35 may implement the
virtio-net header but may not allow to change its length. Remove it
since such an old Linux is no longer supported.
Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Diffstat (limited to 'net/tap-linux.c')
| -rw-r--r-- | net/tap-linux.c | 20 |
1 files changed, 0 insertions, 20 deletions
diff --git a/net/tap-linux.c b/net/tap-linux.c index c7e514e..1226d5f 100644 --- a/net/tap-linux.c +++ b/net/tap-linux.c @@ -185,26 +185,6 @@ int tap_probe_has_uso(int fd) return 1; } -/* Verify that we can assign given length */ -int tap_probe_vnet_hdr_len(int fd, int len) -{ - int orig; - if (ioctl(fd, TUNGETVNETHDRSZ, &orig) == -1) { - return 0; - } - if (ioctl(fd, TUNSETVNETHDRSZ, &len) == -1) { - return 0; - } - /* Restore original length: we can't handle failure. */ - if (ioctl(fd, TUNSETVNETHDRSZ, &orig) == -1) { - fprintf(stderr, "TUNGETVNETHDRSZ ioctl() failed: %s. Exiting.\n", - strerror(errno)); - abort(); - return -errno; - } - return 1; -} - void tap_fd_set_vnet_hdr_len(int fd, int len) { if (ioctl(fd, TUNSETVNETHDRSZ, &len) == -1) { |