From patchwork Thu May 26 08:15:47 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Saravana Kannan X-Patchwork-Id: 12862089 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 6C5F4C4332F for ; Thu, 26 May 2022 08:16:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1345368AbiEZIQw (ORCPT ); Thu, 26 May 2022 04:16:52 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39296 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1346687AbiEZIQg (ORCPT ); Thu, 26 May 2022 04:16:36 -0400 Received: from mail-yw1-x1149.google.com (mail-yw1-x1149.google.com [IPv6:2607:f8b0:4864:20::1149]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 83FA04C7BB for ; Thu, 26 May 2022 01:16:17 -0700 (PDT) Received: by mail-yw1-x1149.google.com with SMTP id 00721157ae682-2fed274f3fbso7281627b3.17 for ; Thu, 26 May 2022 01:16:17 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=date:in-reply-to:message-id:mime-version:references:subject:from:to :cc; bh=6dgEjD+4R2dKDRgscs/xv70YgyhfXrRwkUylnVTphfk=; b=XL1eUaOAcssMtqvMAb2JLoXAqGRiBPWRpPBJh6rTDvytgReAH+LjXHDFnDZXS9f9I2 35g3JMRGxQZlCvxOhWMcOSoY7fmD/fBdQK3AfpTe4+KDVzo3ISAmWs2bpcJGBQMEHxn2 XOrBvHACbTqtONiyNPB/vydyMzterA8qUwVfxsEqd+Vz+8qcEbmdk9FVpwyv4JToLFBL EPR58mdlFaKlltO8fCr0xZCvNvm+F4UFw5xJYUT6ue5rms9F3TPGMAGF7HdiGvNufzye R8r2YJjaY8RuLAuVFWX7SLMYTTkhhepWRDKwQDGC55z4gixqwa9JauWCwnOhgDgX/TTb SoiA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=6dgEjD+4R2dKDRgscs/xv70YgyhfXrRwkUylnVTphfk=; b=i6ymNG0txeD66k0R4/XzqEnHlx5LF222RMIsVaBosi+/1FDDPSTWprdv1kEUVqRuvd 8mmtyCbGwtn0qnF6q8YWP5hvUM0D3O6xc5IAulSJggjzXuYJFmXNWv+PLTo7uNas6HyJ m8EKcPmtbvLktreew1IbyIsiCAiBWdvaC3p7or3zYV7d80xwO6P/PGcI9MWKOhPe2f41 KFlO40/WW8/eDO/NERAzRYa6BrbIx8KfcwWAHJRZFxHT1xU+nSL6tsA46dlojOZ0PRrU TM8wVrs41p6kYXtOituy9MDvy843jQeKCr3blTKFuaWcCos2BfmYpVK+3+Ox2NK5j5ib nyEQ== X-Gm-Message-State: AOAM533WFQg1fwqVt3QNCwzQDt1jup6kMdn6eF9/2C/JKcUuz6ViLz37 OG2TIs9VsACUGIcevYoCjbUFo5cjKLoMGZA= X-Google-Smtp-Source: ABdhPJx5hTzSS2LFu7RkqlQ7KLRzxV0Py+PZHVG9x+dcAcINC/1HXYTnTXlf9OdhjLu3DXMEHDG7SkiPohYReIE= X-Received: from saravanak.san.corp.google.com ([2620:15c:2d:3:ff1f:a3b7:b6de:d30f]) (user=saravanak job=sendgmr) by 2002:a25:fb12:0:b0:64d:d6fb:406a with SMTP id j18-20020a25fb12000000b0064dd6fb406amr34790013ybe.433.1653552977155; Thu, 26 May 2022 01:16:17 -0700 (PDT) Date: Thu, 26 May 2022 01:15:47 -0700 In-Reply-To: <20220526081550.1089805-1-saravanak@google.com> Message-Id: <20220526081550.1089805-9-saravanak@google.com> Mime-Version: 1.0 References: <20220526081550.1089805-1-saravanak@google.com> X-Mailer: git-send-email 2.36.1.124.g0e6072fb45-goog Subject: [RFC PATCH v1 8/9] net: ipconfig: Force fw_devlink to unblock any devices that might probe From: Saravana Kannan To: Greg Kroah-Hartman , "Rafael J. Wysocki" , Kevin Hilman , Ulf Hansson , Len Brown , Pavel Machek , Joerg Roedel , Will Deacon , Andrew Lunn , Heiner Kallweit , Russell King , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Linus Walleij , Andy Shevchenko , Daniel Scally , Heikki Krogerus , Sakari Ailus , Hideaki YOSHIFUJI , David Ahern Cc: Saravana Kannan , Mark Brown , Rob Herring , Geert Uytterhoeven , Yoshihiro Shimoda , John Stultz , Nathan Chancellor , Sebastian Andrzej Siewior , kernel-team@android.com, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, iommu@lists.linux-foundation.org, netdev@vger.kernel.org, linux-gpio@vger.kernel.org, linux-acpi@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org If there are network devices that could probe without some of their suppliers probing and those network devices are needed for IP auto config to work, then fw_devlink=on might break that usecase by blocking the network devices from probing by the time IP auto config starts. So, when IP auto config is enabled, make sure fw_devlink doesn't block the probing of any device that has a driver by the time we get to IP auto config. Signed-off-by: Saravana Kannan --- net/ipv4/ipconfig.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/net/ipv4/ipconfig.c b/net/ipv4/ipconfig.c index 9d41d5d5cd1e..aa7b8ba68ca6 100644 --- a/net/ipv4/ipconfig.c +++ b/net/ipv4/ipconfig.c @@ -1435,6 +1435,8 @@ static int __init wait_for_devices(void) { int i; + fw_devlink_unblock_may_probe(); + for (i = 0; i < DEVICE_WAIT_MAX; i++) { struct net_device *dev; int found = 0;