From patchwork Tue May 9 19:03:01 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Benjamin Bara X-Patchwork-Id: 680404 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 BA6CFC7EE23 for ; Tue, 9 May 2023 19:03:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234986AbjEITDy (ORCPT ); Tue, 9 May 2023 15:03:54 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39184 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234959AbjEITDp (ORCPT ); Tue, 9 May 2023 15:03:45 -0400 Received: from mail-ej1-x632.google.com (mail-ej1-x632.google.com [IPv6:2a00:1450:4864:20::632]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BEB9C4201; Tue, 9 May 2023 12:03:40 -0700 (PDT) Received: by mail-ej1-x632.google.com with SMTP id a640c23a62f3a-966400ee79aso631858866b.0; Tue, 09 May 2023 12:03:40 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1683659019; x=1686251019; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:from:to:cc:subject:date:message-id :reply-to; bh=bX5R8Ja4/uQ1bZhivXwMqgCiLJVs+CVwud3ONCpJxg4=; b=s3/JyypJhOLprfB5qLzC/3u3JxM2Qm9MfuueSbMua157cqQO9vFJRafYM7+nr3WGQN Zmxe5ilXRu18zAkWwenKRiH5ly/tsRgRXzfTYjp0li6qwAgz6kzorHxhnIYZ9oWHhG3a +tHLPRuAfbaWYYoXZS8KhMaRqX/jYzUNMNEGK8WWI6oiX9YxrSiWMxRzz/fqcCFLOjxm G2rKzN1+yFkLJbMDXuE7Gd/mPh3sR/QAttNgs9buDSlsDf4DtD1XZxFuyywe4/1LEuPY 5gZ99ytLogoS/crM7Uvzp+ry0QqdixlDeVqij2uG3cLbiRKT7KvYkc371OP5q+YYFOoE jsuQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1683659019; x=1686251019; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=bX5R8Ja4/uQ1bZhivXwMqgCiLJVs+CVwud3ONCpJxg4=; b=VnK2JUhmiwqPsQftzDtKVE+ZL71svw6E6ktA3oU/Jck1+GtzGy07JWHcCDPpvn2qyo ETtPXtBLpCyU/sX+pu5XHPFfZ2hcEl2zc0ejt2t8yU2VaN0X5d8e8PRryn4zO3ObIqvA kah0CWcUILaXfBbG2wA5ksfry69YT4FU+k5F14aP/nDMNtJv6o0Z9MEavru36kLHiiQb /+gQd1JJQWAT7VLjlZT1y7natDjMZjmh3wII3u5y5bxK3Vksrj5NOHM6l7fOQTV3q4Pu 9K0sXXmmdRQfjZZ/l7mZz8zk0x6xvc5htfsmudO9PrQPR5orKdhgBqmh455VLe/IIuAw X19Q== X-Gm-Message-State: AC+VfDwySyXO0osuH7jxxCWmwQ9U9HNC7w8y5zemzx4z0kMs+nFE27vV f52KFvoMYoWMvjcrPaX6IwmTMETX70jEChmX X-Google-Smtp-Source: ACHHUZ4N9Cw7QXnfUCKm9htZoVdj+Co7WubEXVF1adu9SzJ+miBh5FHrk9VJot7LX2j+iIODsr3nPA== X-Received: by 2002:a17:907:e8f:b0:94e:e082:15b9 with SMTP id ho15-20020a1709070e8f00b0094ee08215b9mr14861016ejc.77.1683659018329; Tue, 09 May 2023 12:03:38 -0700 (PDT) Received: from [127.0.1.1] ([91.230.2.244]) by smtp.gmail.com with ESMTPSA id e2-20020a170906c00200b009697aa5acfcsm1640232ejz.122.2023.05.09.12.03.37 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 09 May 2023 12:03:38 -0700 (PDT) From: Benjamin Bara Date: Tue, 09 May 2023 21:03:01 +0200 Subject: [PATCH v6 3/5] kernel/reboot: add device to sys_off_handler MIME-Version: 1.0 Message-Id: <20230327-tegra-pmic-reboot-v6-3-af44a4cd82e9@skidata.com> References: <20230327-tegra-pmic-reboot-v6-0-af44a4cd82e9@skidata.com> In-Reply-To: <20230327-tegra-pmic-reboot-v6-0-af44a4cd82e9@skidata.com> To: Wolfram Sang , Lee Jones , rafael.j.wysocki@intel.com Cc: dmitry.osipenko@collabora.com, peterz@infradead.org, jonathanh@nvidia.com, richard.leitner@linux.dev, treding@nvidia.com, linux-kernel@vger.kernel.org, linux-i2c@vger.kernel.org, linux-tegra@vger.kernel.org, Benjamin Bara X-Mailer: b4 0.12.2 Precedence: bulk List-ID: X-Mailing-List: linux-i2c@vger.kernel.org From: Benjamin Bara If the dev is known (e.g. a devm-based sys_off_handler is used), it can be passed to the handler's callback to have it available there. Otherwise, cb_data might be set to the dev in most of the cases. Signed-off-by: Benjamin Bara --- include/linux/reboot.h | 3 +++ kernel/reboot.c | 3 +++ 2 files changed, 6 insertions(+) diff --git a/include/linux/reboot.h b/include/linux/reboot.h index 2b6bb593be5b..c4cc3b89ced1 100644 --- a/include/linux/reboot.h +++ b/include/linux/reboot.h @@ -129,11 +129,14 @@ enum sys_off_mode { * @cb_data: User's callback data. * @cmd: Command string. Currently used only by the sys-off restart mode, * NULL otherwise. + * @dev: Device of the sys-off handler. Only if known (devm_register_*), + * NULL otherwise. */ struct sys_off_data { int mode; void *cb_data; const char *cmd; + struct device *dev; }; struct sys_off_handler * diff --git a/kernel/reboot.c b/kernel/reboot.c index 6ebef11c8876..395a0ea3c7a8 100644 --- a/kernel/reboot.c +++ b/kernel/reboot.c @@ -55,6 +55,7 @@ struct sys_off_handler { enum sys_off_mode mode; bool blocking; void *list; + struct device *dev; }; /* @@ -324,6 +325,7 @@ static int sys_off_notify(struct notifier_block *nb, data.cb_data = handler->cb_data; data.mode = mode; data.cmd = cmd; + data.dev = handler->dev; return handler->sys_off_cb(&data); } @@ -511,6 +513,7 @@ int devm_register_sys_off_handler(struct device *dev, handler = register_sys_off_handler(mode, priority, callback, cb_data); if (IS_ERR(handler)) return PTR_ERR(handler); + handler->dev = dev; return devm_add_action_or_reset(dev, devm_unregister_sys_off_handler, handler);