From mboxrd@z Thu Jan 1 00:00:00 1970 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 E4141CD4F57 for ; Fri, 22 Sep 2023 11:13:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233512AbjIVLNP (ORCPT ); Fri, 22 Sep 2023 07:13:15 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33504 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229800AbjIVLNO (ORCPT ); Fri, 22 Sep 2023 07:13:14 -0400 Received: from mail-wr1-x431.google.com (mail-wr1-x431.google.com [IPv6:2a00:1450:4864:20::431]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6CEC0180; Fri, 22 Sep 2023 04:13:07 -0700 (PDT) Received: by mail-wr1-x431.google.com with SMTP id ffacd0b85a97d-31f7638be6eso1890521f8f.3; Fri, 22 Sep 2023 04:13:07 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1695381186; x=1695985986; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=Mo60L/CqsBXTZMp9OSNBO8agQpgsikCTWPBLj8xU0z8=; b=iYIerVfY1NbBVwujHou3raRdNzAq/EF0Qk2tI0vUChm7hYMLIcfWAF7yTChKMbt/xu tGecAjAF8gDIPCM1bgDJzItbEE5gVYhkVGwH51UOo7HsgntvJKsbNIKwmIuKUIL0vU3S dTru+vzXt5DoHzxDZGIjkpPiofTOc+n+W9U3m9XWvb5oFFc3ZW84uskbwnP8RYnEP+/c s5mFOyC3Wy7PZguQUg+WRixmBShv0+jQc/F3Oic2ZDnNCq7MfNRCV05OpKg7SnApAA/b GQIjcc+Yc0PWThaAiWl5SifhxBBgwhXk2wA/g4xMNCMHOTcZTT9t4EApNcxX40Am0yzW olOg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1695381186; x=1695985986; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=Mo60L/CqsBXTZMp9OSNBO8agQpgsikCTWPBLj8xU0z8=; b=ntKLU+7hRv+7pCDyEnjlTpVnnJC42DN+6XLjuXJSzGE9r/vGMxn0JEAsPcXhZDkmPW h4qdZvql9YyXofpq/AhKfxsedcBObDFeFKVf49jo3XHHweFyXZRDEr68RUFBOUi19dPJ 91Y2od2rIYEvMzJIrOm5b+QdnQFgKnnmE030dceZK+2ZaPPUfJQoHlIQqLnq/Gx6kmBc 1fGWGKp5A0lXFU6UhKuausSOI27O919xRNOO+bKjDqz3vK53rYWRaFfmQ6qaeQpmiijI JrOZ2brA0rpjjmHPrJrFibRKiRQawKPWsR8AJei1r5oBfXf1bykgE1RLCuIRiIpVM8UW OeFw== X-Gm-Message-State: AOJu0YzleksLRo03lHq3nQN6pm60xD2kmiwpNvTnuVafcPYniqe0T9y/ GSn+94I1DiSrrQHAbaqEtJw= X-Google-Smtp-Source: AGHT+IH7mPXmlPp61fOS1UbXVt881rz7wfseEorF4MkXdznkIZPNZgazS5rBLuHv+qOU+uGgsaXdlQ== X-Received: by 2002:a5d:694d:0:b0:314:12c:4322 with SMTP id r13-20020a5d694d000000b00314012c4322mr7281735wrw.4.1695381185667; Fri, 22 Sep 2023 04:13:05 -0700 (PDT) Received: from localhost.localdomain (93-34-89-13.ip49.fastwebnet.it. [93.34.89.13]) by smtp.googlemail.com with ESMTPSA id g10-20020adffc8a000000b003176c6e87b1sm4191765wrr.81.2023.09.22.04.13.03 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 22 Sep 2023 04:13:04 -0700 (PDT) From: Christian Marangi To: Vincent Whitchurch , Raju Rangoju , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Alexandre Torgue , Jose Abreu , Maxime Coquelin , Ping-Ke Shih , Kalle Valo , Simon Horman , Daniel Borkmann , Jiri Pirko , Hangbin Liu , netdev@vger.kernel.org, linux-kernel@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org, linux-wireless@vger.kernel.org Cc: Christian Marangi Subject: [net-next PATCH 1/3] net: introduce napi_is_scheduled helper Date: Fri, 22 Sep 2023 13:12:45 +0200 Message-Id: <20230922111247.497-1-ansuelsmth@gmail.com> X-Mailer: git-send-email 2.40.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org We currently have napi_if_scheduled_mark_missed that can be used to check if napi is scheduled but that does more thing than simply checking it and return a bool. Some driver already implement custom function to check if napi is scheduled. Drop these custom function and introduce napi_is_scheduled that simply check if napi is scheduled atomically. Update any driver and code that implement a similar check and instead use this new helper. Signed-off-by: Christian Marangi --- drivers/net/ethernet/chelsio/cxgb3/sge.c | 8 -------- drivers/net/wireless/realtek/rtw89/core.c | 2 +- include/linux/netdevice.h | 5 +++++ net/core/dev.c | 2 +- 4 files changed, 7 insertions(+), 10 deletions(-) diff --git a/drivers/net/ethernet/chelsio/cxgb3/sge.c b/drivers/net/ethernet/chelsio/cxgb3/sge.c index 2e9a74fe0970..71fa2dc19034 100644 --- a/drivers/net/ethernet/chelsio/cxgb3/sge.c +++ b/drivers/net/ethernet/chelsio/cxgb3/sge.c @@ -2501,14 +2501,6 @@ static int napi_rx_handler(struct napi_struct *napi, int budget) return work_done; } -/* - * Returns true if the device is already scheduled for polling. - */ -static inline int napi_is_scheduled(struct napi_struct *napi) -{ - return test_bit(NAPI_STATE_SCHED, &napi->state); -} - /** * process_pure_responses - process pure responses from a response queue * @adap: the adapter diff --git a/drivers/net/wireless/realtek/rtw89/core.c b/drivers/net/wireless/realtek/rtw89/core.c index 133bf289bacb..bbf4ea3639d4 100644 --- a/drivers/net/wireless/realtek/rtw89/core.c +++ b/drivers/net/wireless/realtek/rtw89/core.c @@ -1744,7 +1744,7 @@ static void rtw89_core_rx_to_mac80211(struct rtw89_dev *rtwdev, struct napi_struct *napi = &rtwdev->napi; /* In low power mode, napi isn't scheduled. Receive it to netif. */ - if (unlikely(!test_bit(NAPI_STATE_SCHED, &napi->state))) + if (unlikely(!napi_is_scheduled(napi))) napi = NULL; rtw89_core_hw_to_sband_rate(rx_status); diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index db3d8429d50d..8eac00cd3b92 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -482,6 +482,11 @@ static inline bool napi_prefer_busy_poll(struct napi_struct *n) return test_bit(NAPI_STATE_PREFER_BUSY_POLL, &n->state); } +static inline bool napi_is_scheduled(struct napi_struct *n) +{ + return test_bit(NAPI_STATE_SCHED, &n->state); +} + bool napi_schedule_prep(struct napi_struct *n); /** diff --git a/net/core/dev.c b/net/core/dev.c index cc03a5758d2d..32ba8002f65a 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -6523,7 +6523,7 @@ static int __napi_poll(struct napi_struct *n, bool *repoll) * accidentally calling ->poll() when NAPI is not scheduled. */ work = 0; - if (test_bit(NAPI_STATE_SCHED, &n->state)) { + if (napi_is_scheduled(n)) { work = n->poll(n, weight); trace_napi_poll(n, work, weight); } -- 2.40.1