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| author | Miquel Raynal <miquel.raynal@bootlin.com> | 2022-05-19 17:05:07 +0200 |
|---|---|---|
| committer | Stefan Schmidt <stefan@datenfreihafen.org> | 2022-06-10 09:48:40 +0200 |
| commit | 983a974b40f66d202b075ab8ac584c698a3fc141 (patch) | |
| tree | 5c871270ef84147406e55132c1c851d0224d405a /net/mac802154 | |
| parent | be8c6d86d558860bbc493ad3fbc51fc96ab0c2e4 (diff) | |
| download | lwn-983a974b40f66d202b075ab8ac584c698a3fc141.tar.gz lwn-983a974b40f66d202b075ab8ac584c698a3fc141.zip | |
net: mac802154: Rename the main tx_work struct
This entry is dedicated to synchronous transmissions done by drivers
without async hook. Make this clearer that this is not a work that any
driver can use by at least prefixing it with "sync_". While at it, let's
enhance the comment explaining why we choose one or the other.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Acked-by: Alexander Aring <aahringo@redhat.com>
Link: https://lore.kernel.org/r/20220519150516.443078-3-miquel.raynal@bootlin.com
Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org>
Diffstat (limited to 'net/mac802154')
| -rw-r--r-- | net/mac802154/ieee802154_i.h | 2 | ||||
| -rw-r--r-- | net/mac802154/main.c | 2 | ||||
| -rw-r--r-- | net/mac802154/tx.c | 9 |
3 files changed, 8 insertions, 5 deletions
diff --git a/net/mac802154/ieee802154_i.h b/net/mac802154/ieee802154_i.h index d7632c6d225f..a8b7b9049f14 100644 --- a/net/mac802154/ieee802154_i.h +++ b/net/mac802154/ieee802154_i.h @@ -55,7 +55,7 @@ struct ieee802154_local { struct sk_buff_head skb_queue; struct sk_buff *tx_skb; - struct work_struct tx_work; + struct work_struct sync_tx_work; /* A negative Linux error code or a null/positive MLME error status */ int tx_result; }; diff --git a/net/mac802154/main.c b/net/mac802154/main.c index 392771bba9dd..40fab08df24b 100644 --- a/net/mac802154/main.c +++ b/net/mac802154/main.c @@ -95,7 +95,7 @@ ieee802154_alloc_hw(size_t priv_data_len, const struct ieee802154_ops *ops) skb_queue_head_init(&local->skb_queue); - INIT_WORK(&local->tx_work, ieee802154_xmit_sync_worker); + INIT_WORK(&local->sync_tx_work, ieee802154_xmit_sync_worker); /* init supported flags with 802.15.4 default ranges */ phy->supported.max_minbe = 8; diff --git a/net/mac802154/tx.c b/net/mac802154/tx.c index 97df5985b830..a01689ddd547 100644 --- a/net/mac802154/tx.c +++ b/net/mac802154/tx.c @@ -25,7 +25,7 @@ void ieee802154_xmit_sync_worker(struct work_struct *work) { struct ieee802154_local *local = - container_of(work, struct ieee802154_local, tx_work); + container_of(work, struct ieee802154_local, sync_tx_work); struct sk_buff *skb = local->tx_skb; struct net_device *dev = skb->dev; int res; @@ -76,7 +76,10 @@ ieee802154_tx(struct ieee802154_local *local, struct sk_buff *skb) /* Stop the netif queue on each sub_if_data object. */ ieee802154_stop_queue(&local->hw); - /* async is priority, otherwise sync is fallback */ + /* Drivers should preferably implement the async callback. In some rare + * cases they only provide a sync callback which we will use as a + * fallback. + */ if (local->ops->xmit_async) { unsigned int len = skb->len; @@ -90,7 +93,7 @@ ieee802154_tx(struct ieee802154_local *local, struct sk_buff *skb) dev->stats.tx_bytes += len; } else { local->tx_skb = skb; - queue_work(local->workqueue, &local->tx_work); + queue_work(local->workqueue, &local->sync_tx_work); } return NETDEV_TX_OK; |