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| author |   Jason Wang <jasowang@redhat.com> | 2017-05-17 12:14:41 +0800 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2017-05-18 10:07:40 -0400 |
| commit | 83339c6b159ea6429a1db40b0d9d1083ab574733 (patch) | |
| tree | 7d926f806685e9dedd488e93f68a9696d48bbe4d | |
| parent | skb_array: introduce batch dequeuing (diff) | |
| download | linux-dev-83339c6b159ea6429a1db40b0d9d1083ab574733.tar.xz linux-dev-83339c6b159ea6429a1db40b0d9d1083ab574733.zip | |
tun: export skb_array
This patch exports skb_array through tun_get_skb_array(). Caller can
then manipulate skb array directly.
Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/tun.c | 13 | ||||
| -rw-r--r-- | include/linux/if_tun.h | 5 |
2 files changed, 18 insertions, 0 deletions
diff --git a/drivers/net/tun.c b/drivers/net/tun.c index bbd707b9ef7a..3cbfc5c707e3 100644 --- a/drivers/net/tun.c +++ b/drivers/net/tun.c @@ -2626,6 +2626,19 @@ struct socket *tun_get_socket(struct file *file) } EXPORT_SYMBOL_GPL(tun_get_socket); +struct skb_array *tun_get_skb_array(struct file *file) +{ + struct tun_file *tfile; + + if (file->f_op != &tun_fops) + return ERR_PTR(-EINVAL); + tfile = file->private_data; + if (!tfile) + return ERR_PTR(-EBADFD); + return &tfile->tx_array; +} +EXPORT_SYMBOL_GPL(tun_get_skb_array); + module_init(tun_init); module_exit(tun_cleanup); MODULE_DESCRIPTION(DRV_DESCRIPTION); diff --git a/include/linux/if_tun.h b/include/linux/if_tun.h index ed6da2e6df90..bf9bdf42d577 100644 --- a/include/linux/if_tun.h +++ b/include/linux/if_tun.h @@ -19,6 +19,7 @@ #if defined(CONFIG_TUN) || defined(CONFIG_TUN_MODULE) struct socket *tun_get_socket(struct file *); +struct skb_array *tun_get_skb_array(struct file *file); #else #include <linux/err.h> #include <linux/errno.h> @@ -28,5 +29,9 @@ static inline struct socket *tun_get_socket(struct file *f) { return ERR_PTR(-EINVAL); } +static inline struct skb_array *tun_get_skb_array(struct file *f) +{ + return ERR_PTR(-EINVAL); +} #endif /* CONFIG_TUN */ #endif /* __IF_TUN_H */ |