From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Google-Smtp-Source: AB8JxZrSXG7vynKyEMTi6/fV+lTg7qIYcouNIOMFFJElKVyNTkfuKePy4yEcIudqkVLbRZ0f7w3j ARC-Seal: i=1; a=rsa-sha256; t=1525323847; cv=none; d=google.com; s=arc-20160816; b=LYA5Vz6tzys8/uLyjzKqT+t2kB2Bl92wjJ3qCpGA0ObveCG6anux3KwvrYuLTyXuRe 4yp/uqyxwjt0nu3ubZREelapf4KWV/hf+kMnIGZtHHBIQh3f9X/7DiNIUKtpByK64XM8 K+k+7Ivzy0n4eo9SiQdRIL7e+mYBvhHxdMfrxmfYOIeVVP3h5Lb+EwkSHbPzHN5fAL/f F7psxGZZCVJsOtdUoPaEIF99Fd5C3gCcrpQjFKs9KBAv2dG1VRThBUpF7EtrhyQhBRw/ 1SKGh3l3Sa9znCntNJDigGNuRpQne/pIJJSTqT+T5fKKLluHhhUz8wUf8onKj8oPhA6Q gquA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=references:in-reply-to:message-id:date:subject:cc:to:from :arc-authentication-results; bh=jVnavRtPW7QLrHDqBj1mvSLisgWy38a8+qEoZq4aJMc=; b=c1t+T3TDGh7NiNLdLsK0INH3Ti8IFi3U4syieJIaMlpoui8H91mg2xmHeS2fEp/vd7 jN8WWf+9kzVdXq8lY2pV7oPXkJFh3pU7KVqizm+iob4Jsr6SeqtdMuxGKpyFZ1vUBQ9i yRL4iwPnxh0QCz479zoZ9flHBxylTP0X2hTvhMJCV6khrU86dNEd7KYnktEQUpezKWX4 Cq1oly0VPZ5YkYimpaSfgutPMi3V53d+ZHOrQbXUOM85Fl9HyjDcEqjIyzC4N4DNwu29 dYrbo7RAHgO8QcwWC1J5I5nCngjrB9QXjtcx76eoePbLh71ZvdZjE9of/hosV5JABId2 k6OA== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of poza@qualcomm.com designates 65.197.215.72 as permitted sender) smtp.mailfrom=poza@qualcomm.com Authentication-Results: mx.google.com; spf=pass (google.com: domain of poza@qualcomm.com designates 65.197.215.72 as permitted sender) smtp.mailfrom=poza@qualcomm.com X-IronPort-AV: E=Sophos;i="5.49,356,1520924400"; d="scan'208";a="126361299" X-IronPort-AV: E=McAfee;i="5900,7806,8881"; a="182707667" From: Oza Pawandeep To: Bjorn Helgaas , Philippe Ombredanne , Thomas Gleixner , Greg Kroah-Hartman , Kate Stewart , linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, Dongdong Liu , Keith Busch , Wei Zhang , Sinan Kaya , Timur Tabi Cc: Oza Pawandeep Subject: [PATCH v15 7/9] PCI/PORTDRV: Implement generic find device Date: Thu, 3 May 2018 01:03:56 -0400 Message-Id: <1525323838-1735-8-git-send-email-poza@codeaurora.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1525323838-1735-1-git-send-email-poza@codeaurora.org> References: <1525323838-1735-1-git-send-email-poza@codeaurora.org> X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: =?utf-8?q?1599417978309229425?= X-GMAIL-MSGID: =?utf-8?q?1599417978309229425?= X-Mailing-List: linux-kernel@vger.kernel.org List-ID: This patch implements generic pcie_port_find_device() routine. Signed-off-by: Oza Pawandeep Reviewed-by: Keith Busch diff --git a/drivers/pci/pcie/portdrv.h b/drivers/pci/pcie/portdrv.h index ba6c963..896608a 100644 --- a/drivers/pci/pcie/portdrv.h +++ b/drivers/pci/pcie/portdrv.h @@ -114,4 +114,6 @@ static inline void pcie_pme_interrupt_enable(struct pci_dev *dev, bool en) {} struct pcie_port_service_driver *pcie_port_find_service(struct pci_dev *dev, u32 service); +struct device *pcie_port_find_device(struct pci_dev *dev, + u32 service); #endif /* _PORTDRV_H_ */ diff --git a/drivers/pci/pcie/portdrv_core.c b/drivers/pci/pcie/portdrv_core.c index d843055..c6147c4 100644 --- a/drivers/pci/pcie/portdrv_core.c +++ b/drivers/pci/pcie/portdrv_core.c @@ -20,6 +20,7 @@ #include "portdrv.h" struct portdrv_service_data { struct pcie_port_service_driver *drv; + struct device *dev; u32 service; }; @@ -415,6 +416,7 @@ static int find_service_iter(struct device *device, void *data) service_driver = to_service_driver(device->driver); if (service_driver->service == service) { pdrvs->drv = service_driver; + pdrvs->dev = device; return 1; } } @@ -443,6 +445,27 @@ struct pcie_port_service_driver *pcie_port_find_service(struct pci_dev *dev, } /** + * pcie_port_find_device - find the struct device + * @dev: PCI Express port the service devices associated with + * @service: For the service to find + * + * Find PCI Express port service driver associated with given service + */ +struct device *pcie_port_find_device(struct pci_dev *dev, + u32 service) +{ + struct device *device; + struct portdrv_service_data pdrvs; + + pdrvs.dev = NULL; + pdrvs.service = service; + device_for_each_child(&dev->dev, &pdrvs, find_service_iter); + + device = pdrvs.dev; + return device; +} + +/** * pcie_port_device_remove - unregister PCI Express port service devices * @dev: PCI Express port the service devices to unregister are associated with * -- 2.7.4