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From: "Enrico Weigelt, metux IT consult" <info@metux.net>
To: linux-kernel@vger.kernel.org
Cc: tim@buttersideup.com, james.morse@arm.com, rrichter@marvell.com,
	jdelvare@suse.com, linux@roeck-us.net, miquel.raynal@bootlin.com,
	richard@nod.at, vigneshr@ti.com, linux-crypto@vger.kernel.org,
	linux-edac@vger.kernel.org, linux-hwmon@vger.kernel.org,
	linux-mtd@lists.infradead.org, linux-pci@vger.kernel.org
Subject: [PATCH 1/6] include: linux: pci.h: introduce pci_get_device_by_id()
Date: Thu, 28 Nov 2019 13:54:01 +0100
Message-ID: <20191128125406.10417-1-info@metux.net> (raw)

From: Enrico Weigelt <info@metux.net>

Introduce a little helper for getting pci device via struct pci_device_id,
helpful for reducing a little bit of boilerplate.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
---
 include/linux/pci.h | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/include/linux/pci.h b/include/linux/pci.h
index eb9f371aa77c..f6650b13724a 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -1050,6 +1050,21 @@ struct pci_bus *pci_find_next_bus(const struct pci_bus *from);
 
 struct pci_dev *pci_get_device(unsigned int vendor, unsigned int device,
 			       struct pci_dev *from);
+
+/**
+ * pci_get_device_by_id() - get pci dev by struct pci_device_id
+ * @id: pci_device_id struct
+ *
+ * Retrieve PCI device by struct pci_device_id struct
+ *
+ * @return: pointer to struct pci_dev if sucessful, NULL otherwise
+ */
+static inline struct pci_dev *pci_get_device_by_id(
+	const struct pci_device_id *id)
+{
+	return pci_get_device(id->vendor, id->device, NULL);
+}
+
 struct pci_dev *pci_get_subsys(unsigned int vendor, unsigned int device,
 			       unsigned int ss_vendor, unsigned int ss_device,
 			       struct pci_dev *from);
-- 
2.11.0


             reply index

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-11-28 12:54 Enrico Weigelt, metux IT consult [this message]
2019-11-28 12:54 ` [PATCH 2/6] mtd: maps: esb2rom: use pci_get_device_by_id() Enrico Weigelt, metux IT consult
2019-11-28 12:54 ` [PATCH 3/6] mtd: maps: amd76xrom: " Enrico Weigelt, metux IT consult
2019-11-28 12:54 ` [PATCH 4/6] edac: i82443bxgx_edac: " Enrico Weigelt, metux IT consult
2019-11-28 13:28   ` Robert Richter
2019-11-28 12:54 ` [PATCH 5/6] char: hw_random: intel-rng: " Enrico Weigelt, metux IT consult
2019-11-28 12:54 ` [PATCH 6/6] (v3) drivers: hwmon: i5k_amb: simplify probing / device identification Enrico Weigelt, metux IT consult
2019-11-28 14:21   ` Guenter Roeck
2019-12-10 23:25     ` Bjorn Helgaas

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