net/udp/udp_netpoll.c: Report POLLHUP and POLLERR in 'revents' regardless the requested 'events' set. Per Opengroup.org, these bits must be ignored in the 'events' set.
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@ -135,7 +135,7 @@ static uint16_t udp_poll_eventhandler(FAR struct net_driver_s *dev,
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if ((flags & NETDEV_DOWN) != 0)
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{
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eventset |= ((POLLHUP | POLLERR) & info->fds->events);
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eventset |= (POLLHUP | POLLERR);
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}
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/* Awaken the caller of poll() is requested event occurred. */
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@ -344,25 +344,20 @@ int udp_pollsetup(FAR struct socket *psock, FAR struct pollfd *fds)
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* callback processing.
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*/
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cb->flags = 0;
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cb->flags = NETDEV_DOWN;
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cb->priv = (FAR void *)info;
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cb->event = udp_poll_eventhandler;
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if ((info->fds->events & POLLOUT) != 0)
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if ((fds->events & POLLOUT) != 0)
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{
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cb->flags |= UDP_POLL;
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}
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if ((info->fds->events & POLLIN) != 0)
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if ((fds->events & POLLIN) != 0)
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{
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cb->flags |= UDP_NEWDATA;
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}
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if ((info->fds->events & (POLLHUP | POLLERR)) != 0)
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{
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cb->flags |= NETDEV_DOWN;
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}
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/* Save the reference in the poll info structure as fds private as well
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* for use during poll teardown as well.
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*/
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