From nobody Wed Apr 29 00:43:48 2026 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 D2B08C433EF for ; Thu, 26 May 2022 08:16:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238362AbiEZIQP (ORCPT ); Thu, 26 May 2022 04:16:15 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37030 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1346346AbiEZIP7 (ORCPT ); Thu, 26 May 2022 04:15:59 -0400 Received: from mail-pg1-x54a.google.com (mail-pg1-x54a.google.com [IPv6:2607:f8b0:4864:20::54a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7DCDCB0D04 for ; Thu, 26 May 2022 01:15:57 -0700 (PDT) Received: by mail-pg1-x54a.google.com with SMTP id e1-20020a656781000000b003f9d9fa2ce4so527844pgr.21 for ; Thu, 26 May 2022 01:15:57 -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=1IM3Fvbt8ArJUmTPEiiyr+pPYoVHFzyhPnAJGlSaBT4=; b=hAnSk3S9Qg0dtqCUypketAd2iTMRbAyagepCTA0NOJrVOCYo/te3z7FpVSX+BIFv7w HFcBaSe8ey43rsPOJ4EjkpljhrSmzZ1XVfIWV1DDuCsC0XNnyEb5qUDG+IdRWB1l+ul8 1+Z/Ua4o1ESvV/9Kg1g2lrH9ViDRc2EvuOCNnW0G2m+ijHjBO1KC5Ck9UQlUnR4EKgjD We+nltaFfzSRtA+CLFGxgY+57TX8DeoDR4srqJYZz+sXUodRK7yMpUhoEFX98DiW0heG FyUxGgvp4/hgqLihCcZx8cKb4bTu089o4kruA0ivqPzW49fGKGvzAR3Epx0sWNWjAIVq 1iDg== 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=1IM3Fvbt8ArJUmTPEiiyr+pPYoVHFzyhPnAJGlSaBT4=; b=aAbx2hjpG2B+e+W6DgIUmpdJ4LqvWyJfxHrwjJu/T5UHhC8XvXGZ9Wm2nWSffKsKpF 6o+yq8ZB+P40wzCz/n43El/Vw1j/fkEJ+VktaSYCZHGYrv7n6U0fFSrgzcxluuyra8pA mKbOCFrNHMS68/2sqLvHtQrWzKnyt0IpdcwCG4l7vaiG6lpE79FZNSJ1ZIlTarc+bPwn wzZY0TfWHUnagrRnfzfFUx15GCsAzgNxa0X8zCyeE19GP7iRnpO9qw+MxVlvhbFrjA9m qLnO8z6Frt1NeC0vRb4rRkzOFCOVVs0QA4n6aj1xVFpQKEEV40Qs+/PmJUBlJioCa8Fl Yk7w== X-Gm-Message-State: AOAM530im7C5pkOlj1VE2KA1IhMOJBFIoKWWMGarxfyxukgAr0XLj07P glCoto+4YIuAV1U1CREKbl7+BDYCPBS/MWQ= X-Google-Smtp-Source: ABdhPJymfPGXL/xfcU37VydiB6tPwHU4G2U1fbHUW+y/HyW7OlytTUy4MZTLFHGyXEorOunFh2vZDJQB7oQgrz0= X-Received: from saravanak.san.corp.google.com ([2620:15c:2d:3:ff1f:a3b7:b6de:d30f]) (user=saravanak job=sendgmr) by 2002:a17:902:ecd1:b0:163:6120:563c with SMTP id a17-20020a170902ecd100b001636120563cmr5819104plh.90.1653552956872; Thu, 26 May 2022 01:15:56 -0700 (PDT) Date: Thu, 26 May 2022 01:15:40 -0700 In-Reply-To: <20220526081550.1089805-1-saravanak@google.com> Message-Id: <20220526081550.1089805-2-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 1/9] PM: domains: Delete usage of driver_deferred_probe_check_state() 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-kernel@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Now that fw_devlink=3Don by default and fw_devlink supports "power-domains" property, the execution will never get to the point where driver_deferred_probe_check_state() is called before the supplier has probed successfully or before deferred probe timeout has expired. So, delete the call and replace it with -ENODEV. Signed-off-by: Saravana Kannan Tested-by: Geert Uytterhoeven --- drivers/base/power/domain.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/base/power/domain.c b/drivers/base/power/domain.c index 739e52cd4aba..3e86772d5fac 100644 --- a/drivers/base/power/domain.c +++ b/drivers/base/power/domain.c @@ -2730,7 +2730,7 @@ static int __genpd_dev_pm_attach(struct device *dev, = struct device *base_dev, mutex_unlock(&gpd_list_lock); dev_dbg(dev, "%s() failed to find PM domain: %ld\n", __func__, PTR_ERR(pd)); - return driver_deferred_probe_check_state(base_dev); + return -ENODEV; } =20 dev_dbg(dev, "adding to PM domain %s\n", pd->name); --=20 2.36.1.124.g0e6072fb45-goog From nobody Wed Apr 29 00:43:48 2026 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 C1DD7C4332F for ; Thu, 26 May 2022 08:16:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240498AbiEZIQU (ORCPT ); Thu, 26 May 2022 04:16:20 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37270 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229606AbiEZIQJ (ORCPT ); Thu, 26 May 2022 04:16:09 -0400 Received: from mail-yw1-x114a.google.com (mail-yw1-x114a.google.com [IPv6:2607:f8b0:4864:20::114a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8C685B41FC for ; Thu, 26 May 2022 01:16:00 -0700 (PDT) Received: by mail-yw1-x114a.google.com with SMTP id 00721157ae682-30047b94aa8so8006907b3.1 for ; Thu, 26 May 2022 01:16:00 -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=dlvkAQYsuGB8Wv9lxWmQ5ia/pAj0723lrMJL/F7FmGY=; b=PY2a/ZfTWLOTKMXKyETU+koM0WgQW4QxqX3sYrgc5F8Fync7J+e5f3GBKiPIqpwgPZ SkDAVoB1jl7cjlSJwUihxgqBvVZnvCxi9I4QUaG5WqMu1pOMKtmDRTxpQFAeblPdDleX mxDvzcfuqk3TE1tsWfuNrUDu6y3Z2uQsLnSOUjywddi7iE0G0uqUtlpP3c2Gm0KnZoNS dnyI/ZOgNUHpkp0mB2EIPEiSrxIsj2RY5G5poVzBbXn9Rg97rrWC6Adibg/wQrj3n2xT kI+LY0Yk8J7Hl0wWscTOZw/YR4+r0mDtAk/VmmToHBZWaKhAHd+W02rgl8RuAea8avYR u8FQ== 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=dlvkAQYsuGB8Wv9lxWmQ5ia/pAj0723lrMJL/F7FmGY=; b=AIpqa0GmWVeYI3tqZCuT0iSjo+jECNXlf112zfdRYCTXw9REqTtpAU5BwpZ0fevuYl mJhgt+TQJpBjSx7cKF9f4fJ7rV4YCf3nenMt2/Mg33yX8WacvNVF00pVq1Kn96vIfEic sZJhAJjy2jU+s7okL9mSv3mQLdfj5uH5w/tg4d8rOzAhVioONpfcSBsSFAlA2J9u0f7a SzcvYV2n4JOXB1aiHRCqSGtcxfOJfnU77ZiypxarNK7O1PEUK/4uWFRAY2yC0N2obuKO ciN/mlssvupsahaMdU9xCxos69r8Nq25QCZTPXpkv3MoUv/Boj8mvM1PjmUHqU6HWlHy 7Lgw== X-Gm-Message-State: AOAM533IqzPeJ520mKBdWAURFLiPhw3J9cFBvBTuOARmqFHtGQtYRgJ5 EwuvvBM8Jovs3VhxgasesN1+PmltswFOmeE= X-Google-Smtp-Source: ABdhPJxNRFl0/Al5aF4+hw2juEzzxnRNoJ08VAGxc9iz3rkpIotBWNb9jqq9kR5GKz6VAnObadTZe+xq9PgYyao= X-Received: from saravanak.san.corp.google.com ([2620:15c:2d:3:ff1f:a3b7:b6de:d30f]) (user=saravanak job=sendgmr) by 2002:a81:4757:0:b0:2ff:d34d:4d59 with SMTP id u84-20020a814757000000b002ffd34d4d59mr20437021ywa.511.1653552959732; Thu, 26 May 2022 01:15:59 -0700 (PDT) Date: Thu, 26 May 2022 01:15:41 -0700 In-Reply-To: <20220526081550.1089805-1-saravanak@google.com> Message-Id: <20220526081550.1089805-3-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 2/9] pinctrl: devicetree: Delete usage of driver_deferred_probe_check_state() 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-kernel@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Now that fw_devlink=3Don by default and fw_devlink supports "pinctrl-[0-8]" property, the execution will never get to the point where driver_deferred_probe_check_state() is called before the supplier has probed successfully or before deferred probe timeout has expired. So, delete the call and replace it with -ENODEV. Signed-off-by: Saravana Kannan Tested-by: Geert Uytterhoeven --- drivers/pinctrl/devicetree.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/pinctrl/devicetree.c b/drivers/pinctrl/devicetree.c index 3fb238714718..ef898ee8ca6b 100644 --- a/drivers/pinctrl/devicetree.c +++ b/drivers/pinctrl/devicetree.c @@ -129,7 +129,7 @@ static int dt_to_map_one_config(struct pinctrl *p, np_pctldev =3D of_get_next_parent(np_pctldev); if (!np_pctldev || of_node_is_root(np_pctldev)) { of_node_put(np_pctldev); - ret =3D driver_deferred_probe_check_state(p->dev); + ret =3D -ENODEV; /* keep deferring if modules are enabled */ if (IS_ENABLED(CONFIG_MODULES) && !allow_default && ret < 0) ret =3D -EPROBE_DEFER; --=20 2.36.1.124.g0e6072fb45-goog From nobody Wed Apr 29 00:43:48 2026 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 52AA0C433EF for ; Thu, 26 May 2022 08:16:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1346685AbiEZIQb (ORCPT ); Thu, 26 May 2022 04:16:31 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37344 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1346648AbiEZIQJ (ORCPT ); Thu, 26 May 2022 04:16:09 -0400 Received: from mail-pj1-x1049.google.com (mail-pj1-x1049.google.com [IPv6:2607:f8b0:4864:20::1049]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 23B21BA55C for ; Thu, 26 May 2022 01:16:03 -0700 (PDT) Received: by mail-pj1-x1049.google.com with SMTP id d12-20020a17090a628c00b001dcd2efca39so793989pjj.2 for ; Thu, 26 May 2022 01:16:03 -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=DUCLIv3fIFZkN4IwkAbrdxyKeVczdAPuMH/CpPcV4SU=; b=CyzwtSa5kL7asxlJAQxy6KynJEIdFhvGau0g94npATBUb08mCN7xWPYiqWSpgyW7pp AeKTLb8s+1yIbjcvPRGqkRXa/d5TFin/hQLWeMaJAETlo6oYW5f14ntDOqjhIvmFKH7Y to71h+gy1/+mvnPHDbGWIsuAvvkUo1tnVwOwiNBYAz/Th1IFA4cu6ZOpIDrj4HrVUFgZ 8TxgahJGhhjYVYLYmfpUFt435KgFpIWHwyX3O6yL6OwYx2jNmvoxtX57zkKnPlBhHjOv 6ap3F7Gzmj4ck2T+A1f3T4XMo/l1Sr7ClNm8Ko3J8AHf9Vnb1FGRV7j+BHxzraC/ZahT 26MA== 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=DUCLIv3fIFZkN4IwkAbrdxyKeVczdAPuMH/CpPcV4SU=; b=gkU/s045WaZE7+tQzK79lX6KujyfLGBjT2XNA6sQTfzHMlbJ9PVdZcENBAjbvNt3wB MnjxIpqFHkJZJm3Gdaf2fgXw5HV6u3NLvzyaq6K1DWEgNGm87e6pBiRCX1UYxBsxcyjT Doe6JYBNBcOQTTc6Ok99Fn021Z/jld1acDymdQPthrTZqfOg/0X6EquRsCj5pEd4WVY+ YgNcziuzS5tGz7DOYobjS0ejH6CZF/SXHkOG0XXMdnD9pZX9tyDauxKbVTC5aORNZjR8 qLT2oEoURcHZkRSY0OYjIQdifI3HDqdSugiYXjyCZZ7iDVljzgOQMfA4RJObgvoyPyln JF0w== X-Gm-Message-State: AOAM533U9F246//Ai/m1bNN5SyGtoEPH4/yPzZTxhiInOHKVr2QHaBzF vY9PNufJOxJJZV7kp/ovNmsTPt2PcAG5Bns= X-Google-Smtp-Source: ABdhPJw2pOLycSo0Dk2hnHYGrYjnmnj9FmTbJXx5Eil6VtjWJt3Y4OCof/7QvyjmXMAMae1GQK5aRzIjQ2vExSg= X-Received: from saravanak.san.corp.google.com ([2620:15c:2d:3:ff1f:a3b7:b6de:d30f]) (user=saravanak job=sendgmr) by 2002:a63:343:0:b0:3f6:52e5:edbe with SMTP id 64-20020a630343000000b003f652e5edbemr29501334pgd.272.1653552962496; Thu, 26 May 2022 01:16:02 -0700 (PDT) Date: Thu, 26 May 2022 01:15:42 -0700 In-Reply-To: <20220526081550.1089805-1-saravanak@google.com> Message-Id: <20220526081550.1089805-4-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 3/9] net: mdio: Delete usage of driver_deferred_probe_check_state() 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-kernel@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Now that fw_devlink=3Don by default and fw_devlink supports interrupt properties, the execution will never get to the point where driver_deferred_probe_check_state() is called before the supplier has probed successfully or before deferred probe timeout has expired. So, delete the call and replace it with -ENODEV. Signed-off-by: Saravana Kannan Tested-by: Geert Uytterhoeven --- drivers/net/mdio/fwnode_mdio.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/net/mdio/fwnode_mdio.c b/drivers/net/mdio/fwnode_mdio.c index 1c1584fca632..3e79c2c51929 100644 --- a/drivers/net/mdio/fwnode_mdio.c +++ b/drivers/net/mdio/fwnode_mdio.c @@ -47,9 +47,7 @@ int fwnode_mdiobus_phy_device_register(struct mii_bus *md= io, * just fall back to poll mode */ if (rc =3D=3D -EPROBE_DEFER) - rc =3D driver_deferred_probe_check_state(&phy->mdio.dev); - if (rc =3D=3D -EPROBE_DEFER) - return rc; + rc =3D -ENODEV; =20 if (rc > 0) { phy->irq =3D rc; --=20 2.36.1.124.g0e6072fb45-goog From nobody Wed Apr 29 00:43:48 2026 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 DC7F0C433FE for ; Thu, 26 May 2022 08:16:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1346650AbiEZIQ0 (ORCPT ); Thu, 26 May 2022 04:16:26 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37364 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1346657AbiEZIQK (ORCPT ); Thu, 26 May 2022 04:16:10 -0400 Received: from mail-pf1-x449.google.com (mail-pf1-x449.google.com [IPv6:2607:f8b0:4864:20::449]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 43340B8BFD for ; Thu, 26 May 2022 01:16:06 -0700 (PDT) Received: by mail-pf1-x449.google.com with SMTP id g69-20020a625248000000b00519150d186bso721487pfb.18 for ; Thu, 26 May 2022 01:16:06 -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=BAxCptwO7y2xVPn5yxfUXuZaiLDAgG5VdQuxNau2t/A=; b=SSAklAtF5M2MvdVlYodbyAxTphyyK02Oj42SVcd3FTLXmUoOWmKohwP0jyuy7Dywnn z+Rwg5B5m390JADA/tH9Kd5hrRor7L7xc2HarYOOY1eeh0X5ooFq6gop9u+FKPEH68sX PSmyWhcvNVI+KSAsfLsiJwAoZy4hoOLroAWm7/PcoZRZ5RRn7c5QPkSzY4al45bC9y1m rxt4J+H9awRoebh/t2rs9NdCgcDLPVKf5pbTahtHh4OEILiQvhD1Izdrf/nBW5LrZ6Hr cCTqNUjkmGwlDPIsIOZy6KsBLIleiDr0kGVZMU24uQyWpnq1xNF84jdZo+Qvww3Nq5FM 6uTA== 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=BAxCptwO7y2xVPn5yxfUXuZaiLDAgG5VdQuxNau2t/A=; b=pvAnLRUEutnezcrVHBoPh8dV5XHBLZ3Nvs9G1slTJdoCiDfJbh1xx1ZXXdCus9XSzd oClW7Yo+1Q/gZLGigH5J5WtkXoUFOuUmtwIfUQ2Jf9rBvElgt3q3wQDZKk1KjBjJB8Aw Ot61USddmPq5brvVGwu8MczD1Ax3RxdrvkYYDNoRrASezMDACxsPcXihUNm5LlXfjkZs hh6N9oZ9Wh5DxNC8Lg9knx0gbmVw+l48jue2t/Yuew74IS5P/wgn2L8EhwYMpsWv8va6 xMyzTkl62ZzvEwX/3xZKAwfDLZnQ8yq6wsrZoB6Mf8O09UCb+W+FuIPgJ1LsDZ/vXb0u hkCQ== X-Gm-Message-State: AOAM530pXQUi7EOfO0bLHNX9TGpTErN21n7kkA4FQbM9lJ6joR31VIlD 00kdYbbkIKsRFO/NlE2st4ZDZK7R4n3CtJ4= X-Google-Smtp-Source: ABdhPJz4snZQEDVmZXj6RODHXR7rp3pbTlyyKgm6WM3ongSTDnEvvxBi0qJKrzgY36D1YxzBeGXt+A93QwpkuHs= X-Received: from saravanak.san.corp.google.com ([2620:15c:2d:3:ff1f:a3b7:b6de:d30f]) (user=saravanak job=sendgmr) by 2002:a17:902:b58f:b0:15e:b2f4:b75 with SMTP id a15-20020a170902b58f00b0015eb2f40b75mr37115965pls.25.1653552965291; Thu, 26 May 2022 01:16:05 -0700 (PDT) Date: Thu, 26 May 2022 01:15:43 -0700 In-Reply-To: <20220526081550.1089805-1-saravanak@google.com> Message-Id: <20220526081550.1089805-5-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 4/9] Revert "driver core: Set default deferred_probe_timeout back to 0." 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-kernel@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" This reverts commit 11f7e7ef553b6b93ac1aa74a3c2011b9cc8aeb61. Let's take another shot at getting deferred_probe_timeout=3D10 to work. Signed-off-by: Saravana Kannan Tested-by: Geert Uytterhoeven --- drivers/base/dd.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/base/dd.c b/drivers/base/dd.c index 11b0fb6414d3..f963d9010d7f 100644 --- a/drivers/base/dd.c +++ b/drivers/base/dd.c @@ -256,7 +256,12 @@ static int deferred_devs_show(struct seq_file *s, void= *data) } DEFINE_SHOW_ATTRIBUTE(deferred_devs); =20 +#ifdef CONFIG_MODULES +int driver_deferred_probe_timeout =3D 10; +#else int driver_deferred_probe_timeout; +#endif + EXPORT_SYMBOL_GPL(driver_deferred_probe_timeout); =20 static int __init deferred_probe_timeout_setup(char *str) --=20 2.36.1.124.g0e6072fb45-goog From nobody Wed Apr 29 00:43:48 2026 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 07B12C433EF for ; Thu, 26 May 2022 08:16:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1346780AbiEZIQq (ORCPT ); Thu, 26 May 2022 04:16:46 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37374 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1346641AbiEZIQL (ORCPT ); Thu, 26 May 2022 04:16:11 -0400 Received: from mail-yb1-xb49.google.com (mail-yb1-xb49.google.com [IPv6:2607:f8b0:4864:20::b49]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 350C15F9E for ; Thu, 26 May 2022 01:16:09 -0700 (PDT) Received: by mail-yb1-xb49.google.com with SMTP id i204-20020a2522d5000000b006524ae5d7d7so980328ybi.16 for ; Thu, 26 May 2022 01:16:09 -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=5GHBoFboCsQPgW0xnX8626mjCMc2pUtGqVQ4b897WKc=; b=IrILs6/SrbLE4LxEZxNKCm/JFj6eee7zIC+Pzx0k28blExnst8p510N+Mrt6f7Ati/ fhCLg+kIuoSBGxRzYVVkBrn63L8QzTnZkJYc+jKZnJm5JNaCL1XmmvYBctVPcR+qBS4Q 4wGC14+pYhcdcXPlJ8KKsOY776WVCqrKd5R2mTvBd9JNSJx0gAZsEcqFNfNjwN61LpwP wY12x1+QnyJW06iCpgYiPtLxT3ic3L0/CM/Hl9WavuWnDT7UzG67QuvgYRK2zzxRr467 x76TkjjCfbOV/OiKelBwG+ZZI+ODSVX9nCHAb3bfLDYI4sagD3QOzDplraPR35J1ch4q W9tw== 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=5GHBoFboCsQPgW0xnX8626mjCMc2pUtGqVQ4b897WKc=; b=j8hrthY4zq8295QwCJyPaLqAibcHrb+dSKiD/VwwydFO5NWDMSOkxvIb9Edah4DUmQ oIJ5AL/NYsYpRhKXXkBCOMl50/lPKlaGNl8RLBwsVvS+97kLw9RdZ/ALJCIQhamFseNO uHkB3D9qonLxX/o3mLb/6buk2CRc1xebgiTOFUmxCF9Wj1qVEqs5epSatSUFygtzDeax OGA6sRz2ZWBMrgQdTgH5TfdFvtR2aLNnV3IQhYIb4hJTXGyBWukdcyeikWlNn9OwplXe iT6Tsrbbr0pFI4WZlFEpdfAV3tCfRcC0x7K/z2QyPQKm4DOrugkfG0EiTtZ6m9oD3cJ6 zMyg== X-Gm-Message-State: AOAM530AKh5C0Lf23wzGs/r1GrXaTaWUnqYoMJiCogu6AiVkV9rwgJbf G1vUyrNLUEzPMKYfwlzvPBYI/Pz8WuAevMk= X-Google-Smtp-Source: ABdhPJwfT06c9prMUark3SgFprxU4855waPyfG4Z17nnwU6nQsbeq/CDsaY7uVT4Uffa6yH95LJ8lA+usCDNGiw= X-Received: from saravanak.san.corp.google.com ([2620:15c:2d:3:ff1f:a3b7:b6de:d30f]) (user=saravanak job=sendgmr) by 2002:a25:8e08:0:b0:64d:b20e:bf73 with SMTP id p8-20020a258e08000000b0064db20ebf73mr34625441ybl.558.1653552968266; Thu, 26 May 2022 01:16:08 -0700 (PDT) Date: Thu, 26 May 2022 01:15:44 -0700 In-Reply-To: <20220526081550.1089805-1-saravanak@google.com> Message-Id: <20220526081550.1089805-6-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 5/9] driver core: Set fw_devlink.strict=1 by default 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-kernel@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Now that deferred_probe_timeout is non-zero by default, fw_devlink will never permanently block the probing of devices. It'll try its best to probe the devices in the right order and then finally let devices probe even if their suppliers don't have any drivers. Signed-off-by: Saravana Kannan Tested-by: Geert Uytterhoeven --- drivers/base/core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/base/core.c b/drivers/base/core.c index 7cd789c4985d..7672f23231c1 100644 --- a/drivers/base/core.c +++ b/drivers/base/core.c @@ -1581,7 +1581,7 @@ static int __init fw_devlink_setup(char *arg) } early_param("fw_devlink", fw_devlink_setup); =20 -static bool fw_devlink_strict; +static bool fw_devlink_strict =3D true; static int __init fw_devlink_strict_setup(char *arg) { return strtobool(arg, &fw_devlink_strict); --=20 2.36.1.124.g0e6072fb45-goog From nobody Wed Apr 29 00:43:48 2026 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 CC9FFC43217 for ; Thu, 26 May 2022 08:16:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238756AbiEZIQw (ORCPT ); Thu, 26 May 2022 04:16:52 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37622 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1345414AbiEZIQP (ORCPT ); Thu, 26 May 2022 04:16:15 -0400 Received: from mail-yb1-xb4a.google.com (mail-yb1-xb4a.google.com [IPv6:2607:f8b0:4864:20::b4a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D9AE341982 for ; Thu, 26 May 2022 01:16:11 -0700 (PDT) Received: by mail-yb1-xb4a.google.com with SMTP id m9-20020a056902004900b0064fb755258dso999398ybh.13 for ; Thu, 26 May 2022 01:16:11 -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=kqnLyT5BScBmxPie/jUOGEmzvdpZW3OfuWkwvvKbmIQ=; b=O8dwYlRm5myWtMCUjluMS06m9OQufbVTaL0SA/1SSpLb6Q1H1ZeyGd0a6SHjz/l2AC gRRr/WCLHTFyURFv63GZWekkODW7A8O4IB2yzQJWM+/K0NtEVu9a5tsIpy3YI44fV34Q uTpUGoCbwChTFA2pkNGTMrYZa0xzpaUUIVE8dYXjTIu+gHcpLFh+pcu5hZYghuiUoJm2 ZKupDPbYJUcArPC1Umnaoqe/6Zgos/v0q8iU1hCEpHdc6TOgYFCUzgVDj2Q/pbkNtaXd 2RxGcLTqBsnDUI0hj8KfYCR16HfmSlIsdyhfQgPBL+wYl36dau32BugaaSnT2tbIlwGz BC+g== 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=kqnLyT5BScBmxPie/jUOGEmzvdpZW3OfuWkwvvKbmIQ=; b=In/menmporgeOFJoIUBT+b0H3zim7P5WDoLqgd0vL/m9SAdRjo5m75Gx7WJKzHZ/hg 1BF6wlKUCbHt3oanYv0VLqs5MSvEadfRL2j+UYWm9D20+TU2QBw/to49N7Gp31AJVWd5 XmTEnItFzrPC5T3Vg6ovjAx3pmBogMIS26Oxwu0bTLMTO6clVVzjOq85gwu8wF6Kbr2r 3X7YtC4vzXzLOfPjdrFSR9sw+kwyDbHxHQkhILZhcpYajAY1cRIKS+rmh/pkKyS0+lSC 8J39lDlQFWLucW0k7T+VH9FeGyXuD7lstWPa3aZEnHGq07bhfL6RbbV1Ynu6QDTD283O 3gZg== X-Gm-Message-State: AOAM533a8CmpUlcGd7oNyuHBbT1r645soBXvbaO0BZ/oB4+tlq28SOVZ UDzDmICdD1D/DAB/FRqmMa/1UMpDHKriwMk= X-Google-Smtp-Source: ABdhPJz3E2nD3dyR5epKdpx7T0AcqAuln5UJYq6/LusJXLA9qDXoEEc3OI/BRFh9Q4xJz3OuN7NXxtEIzJwaSYI= X-Received: from saravanak.san.corp.google.com ([2620:15c:2d:3:ff1f:a3b7:b6de:d30f]) (user=saravanak job=sendgmr) by 2002:a81:4fd4:0:b0:2ff:2c4c:a687 with SMTP id d203-20020a814fd4000000b002ff2c4ca687mr37158577ywb.500.1653552971096; Thu, 26 May 2022 01:16:11 -0700 (PDT) Date: Thu, 26 May 2022 01:15:45 -0700 In-Reply-To: <20220526081550.1089805-1-saravanak@google.com> Message-Id: <20220526081550.1089805-7-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 6/9] iommu/of: Delete usage of driver_deferred_probe_check_state() 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-kernel@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Now that fw_devlink=3Don and fw_devlink.strict=3D1 by default and fw_devlink supports iommu DT properties, the execution will never get to the point where driver_deferred_probe_check_state() is called before the supplier has probed successfully or before deferred probe timeout has expired. So, delete the call and replace it with -ENODEV. Signed-off-by: Saravana Kannan Tested-by: Geert Uytterhoeven --- drivers/iommu/of_iommu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iommu/of_iommu.c b/drivers/iommu/of_iommu.c index 5696314ae69e..41f4eb005219 100644 --- a/drivers/iommu/of_iommu.c +++ b/drivers/iommu/of_iommu.c @@ -40,7 +40,7 @@ static int of_iommu_xlate(struct device *dev, * a proper probe-ordering dependency mechanism in future. */ if (!ops) - return driver_deferred_probe_check_state(dev); + return -ENODEV; =20 if (!try_module_get(ops->owner)) return -ENODEV; --=20 2.36.1.124.g0e6072fb45-goog From nobody Wed Apr 29 00:43:48 2026 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 E9747C4332F for ; Thu, 26 May 2022 08:17:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1346609AbiEZIQ7 (ORCPT ); Thu, 26 May 2022 04:16:59 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37352 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1346661AbiEZIQQ (ORCPT ); Thu, 26 May 2022 04:16:16 -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 24C0F23148 for ; Thu, 26 May 2022 01:16:15 -0700 (PDT) Received: by mail-yw1-x1149.google.com with SMTP id 00721157ae682-3004ab92b7aso7398857b3.11 for ; Thu, 26 May 2022 01:16:15 -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=LHvrfQT4UXFPIW7HvFCMhDyzwcScgNhuNK8AAkQqhh0=; b=ckTLEE9Ka8zRBQWZF8bw1bzPyohHSB7lFDGLGx8zTrvE1U6jlLS2u8eGVyiyeggEvU f2EkV92DxtJdRwumDctwEA2IQx70gREKkuzwEB+3OV15TZsv4nnJNeHpcR3jy+FuEHO1 E+wXrf/OpSIAmM7QLQFDf1+Hl/jJe7k56R5tSxkJdxRlRw2RMnjPZSIzlQ613IfRTFOa Zx8mX+wckPdc1dHZYVMnSMTwB7wl2UW03yvyEnDwGVANY6EkvB+fRXiLFfl04V8Uv38Y DXO0NJt9s3+k0LJaHseJ6m+c87C0hU/eJug6HuK1f5WfFNhgvCbmyh04c4hNdwY8HvkX PXvg== 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=LHvrfQT4UXFPIW7HvFCMhDyzwcScgNhuNK8AAkQqhh0=; b=JFVpLgKpvgBRnjMZ2thoMvn3UiGqbOOBjUjmQw0E1DUWrSUOuO3p6Clzpd0glsZesl x51srz1bjVmuRLXme8n9/LcKpw13R8t9+VUGZu6USfVSGO8P2spp6PK2xibQcm84n8xp OqrcT/K3BsQKg2+x6vVfPSf9b5O9BTt8dk80aaHcLHtwpnVP295ZApKqSfSBi7ib78h+ BM+Cdg9gk668ZWz5WcK4kDYfmwMEox9jWgfw7HFURUu37WPp3D9W4yNt3gPjMsEOtjXt 1LYDDgKR2/6AuVEeh9OTL3aFVv5NYpR5FvfYITLcqfkS0QmJvqax/+rLNprx+3tQ17oq RgXg== X-Gm-Message-State: AOAM533GtcO4N1XJlFLTOjo76Mp9NYIoADAdV7+X+89+zfAnwULXMcze eQpJS7o7wsAkdAkib4yBBatgob538fZF1AU= X-Google-Smtp-Source: ABdhPJw4+9jAT07QlqTfVdN89DFF1UyFTJg5uRAxow4srxchUBWqQAUPj+CYeVjLPhmM3eADjwvBI1mMP+o/3L0= X-Received: from saravanak.san.corp.google.com ([2620:15c:2d:3:ff1f:a3b7:b6de:d30f]) (user=saravanak job=sendgmr) by 2002:a25:928b:0:b0:64a:f505:427f with SMTP id y11-20020a25928b000000b0064af505427fmr33415597ybl.146.1653552974289; Thu, 26 May 2022 01:16:14 -0700 (PDT) Date: Thu, 26 May 2022 01:15:46 -0700 In-Reply-To: <20220526081550.1089805-1-saravanak@google.com> Message-Id: <20220526081550.1089805-8-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 7/9] driver core: Add fw_devlink_unblock_may_probe() helper function 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 , Len Brown 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-kernel@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" This function can be used during the kernel boot sequence to forcefully override fw_devlink=3Don and unblock the probing of all devices that have a driver. It's mainly meant to be called from late_initcall() or late_initcall_sync() where a device needs to probe before the kernel can mount rootfs. Signed-off-by: Saravana Kannan Tested-by: Geert Uytterhoeven --- drivers/base/base.h | 1 + drivers/base/core.c | 58 ++++++++++++++++++++++++++++++++++++++++++ drivers/base/dd.c | 2 +- include/linux/fwnode.h | 2 ++ 4 files changed, 62 insertions(+), 1 deletion(-) diff --git a/drivers/base/base.h b/drivers/base/base.h index ab71403d102f..b3a43a164dcd 100644 --- a/drivers/base/base.h +++ b/drivers/base/base.h @@ -160,6 +160,7 @@ extern int devres_release_all(struct device *dev); extern void device_block_probing(void); extern void device_unblock_probing(void); extern void deferred_probe_extend_timeout(void); +extern void driver_deferred_probe_trigger(void); =20 /* /sys/devices directory */ extern struct kset *devices_kset; diff --git a/drivers/base/core.c b/drivers/base/core.c index 7672f23231c1..7ff7fbb00643 100644 --- a/drivers/base/core.c +++ b/drivers/base/core.c @@ -1655,6 +1655,64 @@ void fw_devlink_drivers_done(void) device_links_write_unlock(); } =20 +static int fw_devlink_may_probe(struct device *dev, void *data) +{ + struct device_link *link =3D to_devlink(dev); + + if (!link->supplier->can_match && link->consumer->can_match) + fw_devlink_relax_link(link); + + return 0; +} + +/** + * fw_devlink_unblock_may_probe - Force unblock any device that has a driv= er + * + * This function is more of a sledge hammer than a scalpel. Use this very + * sparingly. + * + * Some devices might need to be probed and bound successfully before the = kernel + * boot sequence can finish and move on to init/userspace. For example, a + * network interface might need to be bound to be able to mount a NFS root= fs. + * + * With fw_devlink=3Don by default, some of these devices might be blocked= from + * probing because they are waiting on a optional supplier that doesn't ha= ve a + * driver. While fw_devlink will eventually identify such devices and unbl= ock + * the probing automatically, it might be too late by the time it unblocks= the + * probing of devices. For example, the IP4 autoconfig might timeout before + * fw_devlink unblocks probing of the network interface. This function is + * available to unblock the probing of such devices. + * + * Since there's no easy way to know which unprobed device needs to probe = for + * boot to succeed, this function makes sure fw_devlink doesn't block any = device + * that has a driver at the point in time this function is called. + * + * It does this by relaxing (fw_devlink=3Dpermissive behavior) all the dev= ice + * links created by fw_devlink where the consumer has a driver and the sup= plier + * doesn't have a driver. + * + * It's extremely unlikely that a proper use of this function will be outs= ide of + * an initcall. So, until a case is made for that, this function is + * intentionally marked with __init. + */ +void __init fw_devlink_unblock_may_probe(void) +{ + struct device_link *link, *ln; + + if (!fw_devlink_flags || fw_devlink_is_permissive()) + return; + + /* Wait for current probes to finish to limit impact. */ + wait_for_device_probe(); + + device_links_write_lock(); + class_for_each_device(&devlink_class, NULL, NULL, + fw_devlink_may_probe); + device_links_write_unlock(); + + driver_deferred_probe_trigger(); +} + static void fw_devlink_unblock_consumers(struct device *dev) { struct device_link *link; diff --git a/drivers/base/dd.c b/drivers/base/dd.c index f963d9010d7f..af8138d44e6c 100644 --- a/drivers/base/dd.c +++ b/drivers/base/dd.c @@ -172,7 +172,7 @@ static bool driver_deferred_probe_enable; * changes in the midst of a probe, then deferred processing should be tri= ggered * again. */ -static void driver_deferred_probe_trigger(void) +void driver_deferred_probe_trigger(void) { if (!driver_deferred_probe_enable) return; diff --git a/include/linux/fwnode.h b/include/linux/fwnode.h index 9a81c4410b9f..0770edda7068 100644 --- a/include/linux/fwnode.h +++ b/include/linux/fwnode.h @@ -13,6 +13,7 @@ #include #include #include +#include =20 struct fwnode_operations; struct device; @@ -199,5 +200,6 @@ extern bool fw_devlink_is_strict(void); int fwnode_link_add(struct fwnode_handle *con, struct fwnode_handle *sup); void fwnode_links_purge(struct fwnode_handle *fwnode); void fw_devlink_purge_absent_suppliers(struct fwnode_handle *fwnode); +void __init fw_devlink_unblock_may_probe(void); =20 #endif --=20 2.36.1.124.g0e6072fb45-goog From nobody Wed Apr 29 00:43:48 2026 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 0813FC433EF for ; Thu, 26 May 2022 08:17:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S241025AbiEZIRL (ORCPT ); Thu, 26 May 2022 04:17:11 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37342 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1346686AbiEZIQg (ORCPT ); Thu, 26 May 2022 04:16:36 -0400 Received: from mail-yw1-x114a.google.com (mail-yw1-x114a.google.com [IPv6:2607:f8b0:4864:20::114a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 829204C7B6 for ; Thu, 26 May 2022 01:16:17 -0700 (PDT) Received: by mail-yw1-x114a.google.com with SMTP id 00721157ae682-2f4dfd09d7fso8176837b3.0 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=iO/dDRtrRBOUjANtnwGihSK4F9PPoaLcv0PrfzBvwVVd0J8WVtvORrbrjoG3azUb0c CdIjAHUOOu/4YoTOQucKF545yn1Ybv2X/HSSRfK74RbuVu71l8PXfflF8ovuKz4OY7yU pAyPPbSSxgHuNbD1eGOTDZpo/Kr2zkWY25wRMx74Dq8r2a2ciGRSXGFpTF9wR+IY2pi2 uKtRRLIgwW0uN4Pj4/o7tFtfNR39jKp5ijudQEV21fcU3SGLSxJoVJ/CF+IHWzKN/DZs 8RaRLdDTzM2t79EwRz1JxIa6VmB92t1653WUaF4AfDenmay6E/xqpbYLXVnLKtqPgkoK cnng== X-Gm-Message-State: AOAM533Csl1PI+/AILM7B49r7pKNre8yaA+tIFeuiA3CPazk5qWvc36L s91Q/mQqOkEeO66QrFwMpKOpsLzE2aQwOf0= 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-kernel@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" 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=3Don 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 Tested-by: Geert Uytterhoeven --- 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; =20 + fw_devlink_unblock_may_probe(); + for (i =3D 0; i < DEVICE_WAIT_MAX; i++) { struct net_device *dev; int found =3D 0; --=20 2.36.1.124.g0e6072fb45-goog From nobody Wed Apr 29 00:43:48 2026 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 82226C433F5 for ; Thu, 26 May 2022 08:17:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231450AbiEZIRF (ORCPT ); Thu, 26 May 2022 04:17:05 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39794 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1346699AbiEZIQm (ORCPT ); Thu, 26 May 2022 04:16:42 -0400 Received: from mail-pj1-x104a.google.com (mail-pj1-x104a.google.com [IPv6:2607:f8b0:4864:20::104a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 234AC4EDDF for ; Thu, 26 May 2022 01:16:21 -0700 (PDT) Received: by mail-pj1-x104a.google.com with SMTP id u1-20020a17090a2b8100b001d9325a862fso775380pjd.6 for ; Thu, 26 May 2022 01:16:21 -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=2cafqgyvMaG8pnmb2DwUPLH+NwqexHFaoGplVLqjY6c=; b=Qhvec8EM5waM3couwB4Dum8OsNReKnA1EIAEV8LpsepiAu+NTnpIDd6zPzvaScyoHi joLxHL0NnhEkyS300O8xI9N1fgEmoiNW+tHhgRg+C3VgA1m7nuIAVZgpAAN0SCoZaXb3 HEB/SDIh21LxIk12AKALJ8PaTt3HoxW0TucqgFk8I+2nWe8sV+SOqE/1qyqqfeteZr3g EufhH6H9hKX80HxUrjS4SaCSZY+0yU4qfhVpbOF9hKztCUUvRR36MTpKRlzF3fXGT8kL xXPgN+vDeTbaZIcJj1bpAuXYJV78EUX8wvpAl/KOGx8ob/jDmnzqVjFH+adTvCIPzWq4 hKpQ== 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=2cafqgyvMaG8pnmb2DwUPLH+NwqexHFaoGplVLqjY6c=; b=KeelyJ5c6Jj0VxOixTr6YJ1Z31hjIgzoXdToVDIMmUKyt26kfvY6ZLTM8GEUeJoHcA iLBqSBY05d8e1yXaLx8akGLfjpAQgUuM22luz94hydWE8CcUQvAovIujR4x7OmD6Sf2D DjVLEzuOMM0RJqvfx8Uz8KEWfTBxgK6n2gOuaFLfTZzdOC6uoLquJeMsoDYTu+iE0lkY dUpGuMCH0zugsA03N/4DgeocLLdLkt+amB4oFKeRfbpFIAxk+ZlYYV+VM5tDqUF6vhx1 j68s4BQz3jC43KSlwoTqJTNiVmqu70jWDfPJmQQlSHI8gsYXLuag5CbI9ZyQOFeKrzgz QITQ== X-Gm-Message-State: AOAM531U7SEvMk47YYCmrVjmZFfZJP4JnSDJH6EPN7RYU+5pDDsZ+RYT eEKmVz2CIKhH9qFb4xIOTymmjuMykvM3wYc= X-Google-Smtp-Source: ABdhPJyinReesiUqDbMmyw2id5J+MedifDe6OonBttcETpmdQGcuAvMkhqslxCFm255z4G73O9ROU101o9oWZy4= X-Received: from saravanak.san.corp.google.com ([2620:15c:2d:3:ff1f:a3b7:b6de:d30f]) (user=saravanak job=sendgmr) by 2002:a17:902:7004:b0:161:f216:4f3f with SMTP id y4-20020a170902700400b00161f2164f3fmr30173525plk.98.1653552980455; Thu, 26 May 2022 01:16:20 -0700 (PDT) Date: Thu, 26 May 2022 01:15:48 -0700 In-Reply-To: <20220526081550.1089805-1-saravanak@google.com> Message-Id: <20220526081550.1089805-10-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 9/9] driver core: Delete driver_deferred_probe_check_state() 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-kernel@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" The function is no longer used. So delete it. Signed-off-by: Saravana Kannan Tested-by: Geert Uytterhoeven --- drivers/base/dd.c | 30 ------------------------------ include/linux/device/driver.h | 1 - 2 files changed, 31 deletions(-) diff --git a/drivers/base/dd.c b/drivers/base/dd.c index af8138d44e6c..789b0871dc45 100644 --- a/drivers/base/dd.c +++ b/drivers/base/dd.c @@ -274,42 +274,12 @@ static int __init deferred_probe_timeout_setup(char *= str) } __setup("deferred_probe_timeout=3D", deferred_probe_timeout_setup); =20 -/** - * driver_deferred_probe_check_state() - Check deferred probe state - * @dev: device to check - * - * Return: - * * -ENODEV if initcalls have completed and modules are disabled. - * * -ETIMEDOUT if the deferred probe timeout was set and has expired - * and modules are enabled. - * * -EPROBE_DEFER in other cases. - * - * Drivers or subsystems can opt-in to calling this function instead of di= rectly - * returning -EPROBE_DEFER. - */ -int driver_deferred_probe_check_state(struct device *dev) -{ - if (!IS_ENABLED(CONFIG_MODULES) && initcalls_done) { - dev_warn(dev, "ignoring dependency for device, assuming no driver\n"); - return -ENODEV; - } - - if (!driver_deferred_probe_timeout && initcalls_done) { - dev_warn(dev, "deferred probe timeout, ignoring dependency\n"); - return -ETIMEDOUT; - } - - return -EPROBE_DEFER; -} -EXPORT_SYMBOL_GPL(driver_deferred_probe_check_state); - static void deferred_probe_timeout_work_func(struct work_struct *work) { struct device_private *p; =20 fw_devlink_drivers_done(); =20 - driver_deferred_probe_timeout =3D 0; driver_deferred_probe_trigger(); flush_work(&deferred_probe_work); =20 diff --git a/include/linux/device/driver.h b/include/linux/device/driver.h index 700453017e1c..7c245d269feb 100644 --- a/include/linux/device/driver.h +++ b/include/linux/device/driver.h @@ -241,7 +241,6 @@ driver_find_device_by_acpi_dev(struct device_driver *dr= v, const void *adev) =20 extern int driver_deferred_probe_timeout; void driver_deferred_probe_add(struct device *dev); -int driver_deferred_probe_check_state(struct device *dev); void driver_init(void); =20 /** --=20 2.36.1.124.g0e6072fb45-goog