Revision 17829c5a42f776463b305f8a9ccac55a3f473e1d authored by Linus Torvalds on 13 March 2020, 19:45:23 UTC, committed by Linus Torvalds on 13 March 2020, 19:45:23 UTC
Pull block fixes from Jens Axboe: "A few fixes that should go into this release. This contains: - Fix for a corruption issue with the s390 dasd driver (Stefan) - Fixup/improvement for the flush insertion change that we had in this series (Ming) - Fix for the partition suppor for host aware zoned devices (Shin'ichiro) - Fix incorrect blk-iocost comparison (Tejun) The diffstat looks large, but that's a) mostly dasd, and b) the flush fix from Ming adds a big comment" * tag 'block-5.6-2020-03-13' of git://git.kernel.dk/linux-block: block: Fix partition support for host aware zoned block devices blk-mq: insert flush request to the front of dispatch queue s390/dasd: fix data corruption for thin provisioned devices blk-iocost: fix incorrect vtime comparison in iocg_is_idle()
util.c
// SPDX-License-Identifier: GPL-2.0-only
/*
*
* Authors:
* Alexander Aring <aar@pengutronix.de>
*
* Based on: net/mac80211/util.c
*/
#include "ieee802154_i.h"
#include "driver-ops.h"
/* privid for wpan_phys to determine whether they belong to us or not */
const void *const mac802154_wpan_phy_privid = &mac802154_wpan_phy_privid;
void ieee802154_wake_queue(struct ieee802154_hw *hw)
{
struct ieee802154_local *local = hw_to_local(hw);
struct ieee802154_sub_if_data *sdata;
rcu_read_lock();
list_for_each_entry_rcu(sdata, &local->interfaces, list) {
if (!sdata->dev)
continue;
netif_wake_queue(sdata->dev);
}
rcu_read_unlock();
}
EXPORT_SYMBOL(ieee802154_wake_queue);
void ieee802154_stop_queue(struct ieee802154_hw *hw)
{
struct ieee802154_local *local = hw_to_local(hw);
struct ieee802154_sub_if_data *sdata;
rcu_read_lock();
list_for_each_entry_rcu(sdata, &local->interfaces, list) {
if (!sdata->dev)
continue;
netif_stop_queue(sdata->dev);
}
rcu_read_unlock();
}
EXPORT_SYMBOL(ieee802154_stop_queue);
enum hrtimer_restart ieee802154_xmit_ifs_timer(struct hrtimer *timer)
{
struct ieee802154_local *local =
container_of(timer, struct ieee802154_local, ifs_timer);
ieee802154_wake_queue(&local->hw);
return HRTIMER_NORESTART;
}
void ieee802154_xmit_complete(struct ieee802154_hw *hw, struct sk_buff *skb,
bool ifs_handling)
{
if (ifs_handling) {
struct ieee802154_local *local = hw_to_local(hw);
u8 max_sifs_size;
/* If transceiver sets CRC on his own we need to use lifs
* threshold len above 16 otherwise 18, because it's not
* part of skb->len.
*/
if (hw->flags & IEEE802154_HW_TX_OMIT_CKSUM)
max_sifs_size = IEEE802154_MAX_SIFS_FRAME_SIZE -
IEEE802154_FCS_LEN;
else
max_sifs_size = IEEE802154_MAX_SIFS_FRAME_SIZE;
if (skb->len > max_sifs_size)
hrtimer_start(&local->ifs_timer,
hw->phy->lifs_period * NSEC_PER_USEC,
HRTIMER_MODE_REL);
else
hrtimer_start(&local->ifs_timer,
hw->phy->sifs_period * NSEC_PER_USEC,
HRTIMER_MODE_REL);
} else {
ieee802154_wake_queue(hw);
}
dev_consume_skb_any(skb);
}
EXPORT_SYMBOL(ieee802154_xmit_complete);
void ieee802154_stop_device(struct ieee802154_local *local)
{
flush_workqueue(local->workqueue);
hrtimer_cancel(&local->ifs_timer);
drv_stop(local);
}
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