From patchwork Tue Dec 12 02:27:26 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yury Norov X-Patchwork-Id: 753476 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="JJLyLa4Q" Received: from mail-yw1-x1134.google.com (mail-yw1-x1134.google.com [IPv6:2607:f8b0:4864:20::1134]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 73D62B8; Mon, 11 Dec 2023 18:28:13 -0800 (PST) Received: by mail-yw1-x1134.google.com with SMTP id 00721157ae682-5df4993c25dso28748587b3.2; Mon, 11 Dec 2023 18:28:13 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1702348092; x=1702952892; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=QFEJBK39s2HmgQ9VlPsn5925TKEumn+jH4TGZrUP5qg=; b=JJLyLa4QYqY3UTMvyfTXmI+k01iktZdN0dSV/P/pIhBze7LcIH0wjn+tbOgGzLHa6x LDzaXWFjoijnWIfNBAzwJunRa6sdZBeqFpS9bP1R/NpWXZ7ud8pWO30VMe+cbYiCXYVh LqNBEdLeTrY5/kjUO4IOrlVOcvGzfyFcmklk8GyvbfRNed8SskX4JoaBh1xwRqrTb08U 2lDqkklEyVBWrclNEwm/hGCHO1U9TZFGtj/Ynu/EFX5T87EYTAUNSK8g6EDaMGXmzE+f RLX/YCCX6bJBoHMdnONlevaPGX3YBOPo3c7kb30ssESng6yuOXPQ3e7XP8NLUep9E2Qf yX6A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1702348092; x=1702952892; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=QFEJBK39s2HmgQ9VlPsn5925TKEumn+jH4TGZrUP5qg=; b=bI9VFZshKuS5EttZv9bXmUS/0sZn9qBPI9wjec8TBRlG5F5xJf3kZaEvssAvumnrs5 bKmprBmQKp9lNXNTgL14UHiwlsFjZjrrYKS1lleeUBgLS3e8BgBxcXRVVfsUuV7MymfZ 5msAw+lRLb62HkTZq9mS2AvLVORhRgHaVaSYv9m3VhCyY4TzOfl8NBEyYNbtJcsS8EZS O2iIkMKADAXxr+gTnmfP8npPV1QgSWUyafGHzjfqQt7CalGx+8NwIL5p3lX8Szks5DNf mOZhSsa2LQ5W3Yejn2DROhMpQTBNQDHEwe8gh6+3e/9whxC/QzXWs/soYoAvMf98A0m8 J1aA== X-Gm-Message-State: AOJu0YzTcwadPqquOiYx9OWYYcAbjCZZTAcdGdJWMaGbgFYzHBuqbkPF b6N0dtC5PSm9abLB6XOC745ibKVU3sKOJw== X-Google-Smtp-Source: AGHT+IFeSOkqzijdoImeBErfWETX/wo40h7f/thFLgfzuT+2B28dRbzyEy4kpoJKGuVN+4D5yT1XSg== X-Received: by 2002:a0d:ca05:0:b0:5d7:6a55:b589 with SMTP id m5-20020a0dca05000000b005d76a55b589mr4755536ywd.24.1702348091703; Mon, 11 Dec 2023 18:28:11 -0800 (PST) Received: from localhost ([2601:344:8301:57f0:38aa:1c88:df05:9b73]) by smtp.gmail.com with ESMTPSA id x9-20020a0dd509000000b005d951c0084esm3427568ywd.21.2023.12.11.18.28.10 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 11 Dec 2023 18:28:11 -0800 (PST) From: Yury Norov To: linux-kernel@vger.kernel.org, Ping-Ke Shih , Kalle Valo , linux-wireless@vger.kernel.org Cc: Yury Norov , Jan Kara , Mirsad Todorovac , Matthew Wilcox , Rasmus Villemoes , Andy Shevchenko , Maxim Kuvyrkov , Alexey Klimov , Bart Van Assche , Sergey Shtylyov Subject: [PATCH v3 12/35] wifi: rtw88: optimize the driver by using atomic iterator Date: Mon, 11 Dec 2023 18:27:26 -0800 Message-Id: <20231212022749.625238-13-yury.norov@gmail.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20231212022749.625238-1-yury.norov@gmail.com> References: <20231212022749.625238-1-yury.norov@gmail.com> Precedence: bulk X-Mailing-List: linux-wireless@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 rtw_pci_tx_kick_off() and rtw89_pci_tx_kick_off_pending() traverse bitmaps bit by bit. Simplify it by using atomic for_each_test_and_clear_bit() iterator. Signed-off-by: Yury Norov --- drivers/net/wireless/realtek/rtw88/pci.c | 5 ++--- drivers/net/wireless/realtek/rtw89/pci.c | 5 +---- 2 files changed, 3 insertions(+), 7 deletions(-) diff --git a/drivers/net/wireless/realtek/rtw88/pci.c b/drivers/net/wireless/realtek/rtw88/pci.c index 2bfc0e822b8d..a0d69c75a381 100644 --- a/drivers/net/wireless/realtek/rtw88/pci.c +++ b/drivers/net/wireless/realtek/rtw88/pci.c @@ -789,9 +789,8 @@ static void rtw_pci_tx_kick_off(struct rtw_dev *rtwdev) struct rtw_pci *rtwpci = (struct rtw_pci *)rtwdev->priv; enum rtw_tx_queue_type queue; - for (queue = 0; queue < RTK_MAX_TX_QUEUE_NUM; queue++) - if (test_and_clear_bit(queue, rtwpci->tx_queued)) - rtw_pci_tx_kick_off_queue(rtwdev, queue); + for_each_test_and_clear_bit(queue, rtwpci->tx_queued, RTK_MAX_TX_QUEUE_NUM) + rtw_pci_tx_kick_off_queue(rtwdev, queue); } static int rtw_pci_tx_write_data(struct rtw_dev *rtwdev, diff --git a/drivers/net/wireless/realtek/rtw89/pci.c b/drivers/net/wireless/realtek/rtw89/pci.c index 14ddb0d39e63..184d41b774d7 100644 --- a/drivers/net/wireless/realtek/rtw89/pci.c +++ b/drivers/net/wireless/realtek/rtw89/pci.c @@ -1077,10 +1077,7 @@ static void rtw89_pci_tx_kick_off_pending(struct rtw89_dev *rtwdev) struct rtw89_pci_tx_ring *tx_ring; int txch; - for (txch = 0; txch < RTW89_TXCH_NUM; txch++) { - if (!test_and_clear_bit(txch, rtwpci->kick_map)) - continue; - + for_each_test_and_clear_bit(txch, rtwpci->kick_map, RTW89_TXCH_NUM) { tx_ring = &rtwpci->tx_rings[txch]; __rtw89_pci_tx_kick_off(rtwdev, tx_ring); }