| Message ID | E1OMtjl-0006PB-9z@gondolin.me.apana.org.au |
|---|---|
| State | Accepted, archived |
| Delegated to: | David Miller |
| Headers | show |
diff --git a/include/linux/netpoll.h b/include/linux/netpoll.h index f3ad74a..4c77fe7 100644 --- a/include/linux/netpoll.h +++ b/include/linux/netpoll.h @@ -116,6 +116,11 @@ static inline void netpoll_poll_unlock(void *have) } } +static inline int netpoll_tx_running(struct net_device *dev) +{ + return irqs_disabled(); +} + #else static inline int netpoll_rx(struct sk_buff *skb) { @@ -139,6 +144,10 @@ static inline void netpoll_poll_unlock(void *have) static inline void netpoll_netdev_init(struct net_device *dev) { } +static inline int netpoll_tx_running(struct net_device *dev) +{ + return 0; +} #endif #endif
netpoll: Add netpoll_tx_running This patch adds the helper netpoll_tx_running for use within ndo_start_xmit. It returns non-zero if ndo_start_xmit is being invoked by netpoll, and zero otherwise. This is currently implemented by simply looking at the hardirq count. This is because for all non-netpoll uses of ndo_start_xmit, IRQs must be enabled while netpoll always disables IRQs before calling ndo_start_xmit. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> --- include/linux/netpoll.h | 9 +++++++++ 1 file changed, 9 insertions(+) -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html