From patchwork Wed Aug 11 08:06:37 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= X-Patchwork-Id: 12430297 X-Patchwork-Delegate: bhelgaas@google.com Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id F2960C4320A for ; Wed, 11 Aug 2021 08:08:54 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D833860E52 for ; Wed, 11 Aug 2021 08:08:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235837AbhHKIJM (ORCPT ); Wed, 11 Aug 2021 04:09:12 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51188 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235884AbhHKIH2 (ORCPT ); Wed, 11 Aug 2021 04:07:28 -0400 Received: from metis.ext.pengutronix.de (metis.ext.pengutronix.de [IPv6:2001:67c:670:201:290:27ff:fe1d:cc33]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 41191C061798 for ; Wed, 11 Aug 2021 01:06:48 -0700 (PDT) Received: from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1mDjG9-00017p-TR; Wed, 11 Aug 2021 10:06:45 +0200 Received: from [2a0a:edc0:0:900:1d::77] (helo=ptz.office.stw.pengutronix.de) by drehscheibe.grey.stw.pengutronix.de with esmtp (Exim 4.92) (envelope-from ) id 1mDjG9-0000P3-CS; Wed, 11 Aug 2021 10:06:45 +0200 Received: from ukl by ptz.office.stw.pengutronix.de with local (Exim 4.92) (envelope-from ) id 1mDjG6-0002xp-AQ; Wed, 11 Aug 2021 10:06:42 +0200 From: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= To: Bjorn Helgaas Cc: Greg Kroah-Hartman , linux-pci@vger.kernel.org, kernel@pengutronix.de Subject: [PATCH v3 8/8] PCI: Drop duplicated tracking of a pci_dev's bound driver Date: Wed, 11 Aug 2021 10:06:37 +0200 Message-Id: <20210811080637.2596434-9-u.kleine-koenig@pengutronix.de> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210811080637.2596434-1-u.kleine-koenig@pengutronix.de> References: <20210811080637.2596434-1-u.kleine-koenig@pengutronix.de> MIME-Version: 1.0 X-Patch-Hashes: v=1; h=sha256; i=yGEodBYjARp1eJPqP9/n/KpfKo6ALJzXr+t0LDtBUZM=; m=JRVTmu6nPliiiBslnXnYAnMTr94GnCwSSGQey1Vdrcw=; p=rv0aVc4k04hVGAp5b4bWm/VdX4YI7e2/eYWOrVGVROU=; g=f3b7d22ed7c914b1939595bea1dcb198b436a8ca X-Patch-Sig: m=pgp; i=u.kleine-koenig@pengutronix.de; s=0x0D2511F322BFAB1C1580266BE2DCDD9132669BD6; b=iQEzBAABCgAdFiEEfnIqFpAYrP8+dKQLwfwUeK3K7AkFAmEThQUACgkQwfwUeK3K7Am3oAgAoMx pMpGM06uIV7Xo2rMowk67L2rW1jPh0AYqtOu3RsEMq91tE9tgxF/mi1THKyWCBvJbS2eQRjxw9yAx z82fz1J+63tT2fE6KMdJqSDIfpCzUqMPoYfcZL+wLb3Y9BvS1Qu5GDeDWdXBUWWqF4FsQc2nP8Bdu 9zshiwoeIivagRO+EDdhccg4thu6TXEzHdpHOSdzBgqPiMVCRTK/zpPA+tOo2VbyHb7ijCmufFeIn WZg2fvaLSnX1VTYxYSM5KuCdRWMUY8BBVlRuQGJz+J27ZLikzhDBvhKff/SqobOMtMBnFtd8LSJPm kwVcwedWCDIf57gSLdktCp2rucHafrA== X-SA-Exim-Connect-IP: 2a0a:edc0:0:c01:1d::a2 X-SA-Exim-Mail-From: ukl@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-pci@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org Currently it's tracked twice which driver is bound to a given pci device. Now that all users of the pci specific one (struct pci_dev::driver) are updated to use an access macro (pci_driver_of_dev()), change the macro to use the information from the driver core and remove the driver member from struct pci_dev. Signed-off-by: Uwe Kleine-König --- drivers/pci/pci-driver.c | 4 ---- include/linux/pci.h | 1 - 2 files changed, 5 deletions(-) diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c index e4bab9d0d6d8..cfc4cb6da8c0 100644 --- a/drivers/pci/pci-driver.c +++ b/drivers/pci/pci-driver.c @@ -305,12 +305,10 @@ static long local_pci_probe(void *_ddi) * its remove routine. */ pm_runtime_get_sync(dev); - pci_dev->driver = pci_drv; rc = pci_drv->probe(pci_dev, ddi->id); if (!rc) return rc; if (rc < 0) { - pci_dev->driver = NULL; pm_runtime_put_sync(dev); return rc; } @@ -376,7 +374,6 @@ static int pci_call_probe(struct pci_driver *drv, struct pci_dev *dev, * @pci_dev: PCI device being probed * * returns 0 on success, else error. - * side-effect: pci_dev->driver is set to drv when drv claims pci_dev. */ static int __pci_device_probe(struct pci_driver *drv, struct pci_dev *pci_dev) { @@ -451,7 +448,6 @@ static int pci_device_remove(struct device *dev) pm_runtime_put_noidle(dev); } pcibios_free_irq(pci_dev); - pci_dev->driver = NULL; pci_iov_remove(pci_dev); /* Undo the runtime PM settings in local_pci_probe() */ diff --git a/include/linux/pci.h b/include/linux/pci.h index 540b377ca8f6..019a8f2e0fdd 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -342,7 +342,6 @@ struct pci_dev { u16 pcie_flags_reg; /* Cached PCIe Capabilities Register */ unsigned long *dma_alias_mask;/* Mask of enabled devfn aliases */ - struct pci_driver *driver; /* Driver bound to this device */ u64 dma_mask; /* Mask of the bits of bus address this device implements. Normally this is 0xffffffff. You only need to change