From patchwork Tue May 17 16:34:41 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Miquel Raynal X-Patchwork-Id: 12852739 X-Patchwork-Delegate: kuba@kernel.org Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1476CC433F5 for ; Tue, 17 May 2022 16:35:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1350963AbiEQQfF (ORCPT ); Tue, 17 May 2022 12:35:05 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35020 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1350959AbiEQQfA (ORCPT ); Tue, 17 May 2022 12:35:00 -0400 Received: from relay8-d.mail.gandi.net (relay8-d.mail.gandi.net [217.70.183.201]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6D2FF4EDF1; Tue, 17 May 2022 09:34:58 -0700 (PDT) Received: (Authenticated sender: miquel.raynal@bootlin.com) by mail.gandi.net (Postfix) with ESMTPSA id BBAD11BF20B; Tue, 17 May 2022 16:34:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1652805297; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=sHe7QpRZDkkDN5jx8ES3bIsouncXdhD8eetbRXsACsQ=; b=VDsskbylzk/uVJdYhL7VKYo4gUMAH4vh+6o4Z32Ei3/wjtTIFEWu7R920E3BA6fGh3jxKS vp+cp0i+3bAuZK3zmjk/vKukr+uHMW1+2aU/7Dq5VXVHVRalFhkUhaMiL9eLselu5vQHqF dOjCupA0Yj/WxAKqmMdAmbSgkAWpmfOhxSdtX9sb/Is4pSrgRxX1CoXCnPYq7Yxm9pZYTv bhOz6j5NPT3C2MgwN55wB79TcK20Nio69f9GgbZkTs3+xdgAfOeOw+nVNz7wals8jKET57 WawuUOrJfBGmXq+3szkoDa8cSv/OxKAK52Kf5/6aFLktLx1PV966GicESo0HpA== From: Miquel Raynal To: Alexander Aring , Stefan Schmidt , linux-wpan@vger.kernel.org Cc: David Girault , Romuald Despres , Frederic Blain , Nicolas Schodet , Thomas Petazzoni , "David S. Miller" , Jakub Kicinski , Paolo Abeni , netdev@vger.kernel.org, Miquel Raynal Subject: [PATCH wpan-next v3 02/11] net: mac802154: Rename the main tx_work struct Date: Tue, 17 May 2022 18:34:41 +0200 Message-Id: <20220517163450.240299-3-miquel.raynal@bootlin.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220517163450.240299-1-miquel.raynal@bootlin.com> References: <20220517163450.240299-1-miquel.raynal@bootlin.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org 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 --- net/mac802154/ieee802154_i.h | 2 +- net/mac802154/main.c | 2 +- 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;