From nobody Wed Dec 17 10:02:19 2025 Received: from m16.mail.163.com (m16.mail.163.com [220.197.31.2]) by smtp.subspace.kernel.org (Postfix) with ESMTP id F03F0DDC9 for ; Sun, 14 Jul 2024 05:06:01 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=220.197.31.2 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1720933568; cv=none; b=uNYRTTHD1IbbnfzDSnG7WI5TMIa7X4fw18h7wjP/haaMc9PK/+myGrjD2F+K9d1ypm/NpySvM6MWqVbZlZ83oXG5kP+QwjGmgzTOWAZui4nK1tXf7x5OZWnChiPRR0M9WqXlvSI2xVP2+N3hsJIFbLTVEbuF/udQDg/kityYEQc= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1720933568; c=relaxed/simple; bh=0tga5q/Ajix6V/Fe2NcEAHaE90bgyW4KctueeDpmFFM=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version:Content-Type; b=GqYAYhkZG0aeOZzh/48UZVgc+k49DXpPX5YRQwFLMrV/I5DWIQPIECqDBTZD4v6YWQRTpKG6DY7DjIUlH8Q2ry61fEEYtDPUDDV54F6pnxh6h+fK0EQ3IPu8f+Tqd3ecIJMP736XRp0HEfVicwOotBUXOpmpzUPF+R6ATtijkII= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=163.com; spf=pass smtp.mailfrom=163.com; dkim=pass (1024-bit key) header.d=163.com header.i=@163.com header.b=b2SPFDFL; arc=none smtp.client-ip=220.197.31.2 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=163.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=163.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=163.com header.i=@163.com header.b="b2SPFDFL" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=163.com; s=s110527; h=From:Subject:Date:Message-Id:MIME-Version: Content-Type; bh=nRiZSdk0sCkxQR9s9KDjVxr0G7YZIc4+CPU/H0Yzxes=; b=b2SPFDFLmeu4l7EzJbFsctFqZj05Z950yAXBiWTw6d3fn1FCw2fTPAkN8N93yE o0ESZlCYWhalHT0RdATDQGe8PDhJPFsFW5VKfKzsbyGu+e7I733FqHFKGVa1YWO5 vVup09knFcsVmRdL+YeTn4a+VESv/LlmmV4gM4LkaGbN4= Received: from localhost.localdomain (unknown [114.93.107.99]) by gzga-smtp-mta-g2-3 (Coremail) with SMTP id _____wDXP3+PXJNm8ea_Cg--.38349S2; Sun, 14 Jul 2024 13:05:37 +0800 (CST) From: =?UTF-8?q?=E6=9D=8E=E5=93=B2?= To: gregkh@linuxfoundation.org, rafael@kernel.org Cc: linux-kernel@vger.kernel.org, =?UTF-8?q?=E6=9D=8E=E5=93=B2?= Subject: [PATCH] driver:core: NO need to determine whether the driver is asynchronous Date: Sat, 13 Jul 2024 22:05:07 -0700 Message-Id: <20240714050507.2505-1-sensor1010@163.com> X-Mailer: git-send-email 2.17.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-CM-TRANSID: _____wDXP3+PXJNm8ea_Cg--.38349S2 X-Coremail-Antispam: 1Uf129KBjvdXoW7GrW7Kry7Ww4xuFyfKw17ZFb_yoWktFX_Cr yUWr97ur1rGa1rGFW7K343ZrZY9F4aqFWkXrZ8trWfWryUX3Z5Kwn8AF4qywn5WrW29Fnx W34DGrWxZ34I9jkaLaAFLSUrUUUUjb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUvcSsGvfC2KfnxnUUI43ZEXa7sRKcTm7UUUUU== X-CM-SenderInfo: 5vhq20jurqiii6rwjhhfrp/1tbiEBUcq2XAl60UJwABsf When rescanning the device, there is no need to determine whether the driver is asynchronous. Signed-off-by: =E6=9D=8E=E5=93=B2 --- drivers/base/dd.c | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-) diff --git a/drivers/base/dd.c b/drivers/base/dd.c index 47351d98f6e1..41fd4b1b4779 100644 --- a/drivers/base/dd.c +++ b/drivers/base/dd.c @@ -915,7 +915,7 @@ static int __device_attach_driver(struct device_driver = *drv, void *_data) { struct device_attach_data *data =3D _data; struct device *dev =3D data->dev; - bool async_allowed; + bool async_allowed =3D false; int ret; =20 ret =3D driver_match_device(drv, dev); @@ -936,12 +936,14 @@ static int __device_attach_driver(struct device_drive= r *drv, void *_data) return ret; } /* ret > 0 means positive match */ =20 - async_allowed =3D driver_allows_async_probing(drv); + if (data->check_async) { + async_allowed =3D driver_allows_async_probing(drv); =20 - if (async_allowed) - data->have_async =3D true; + if (async_allowed) + data->have_async =3D true; + } =20 - if (data->check_async && async_allowed !=3D data->want_async) + if (async_allowed !=3D data->want_async) return 0; =20 /* --=20 2.17.1