From: Zijun Hu <zijun_hu@icloud.com>
To: "Greg Kroah-Hartman" <gregkh@linuxfoundation.org>,
"Rafael J. Wysocki" <rafael@kernel.org>,
"Chun-Kuang Hu" <chunkuang.hu@kernel.org>,
"Philipp Zabel" <p.zabel@pengutronix.de>,
"David Airlie" <airlied@gmail.com>,
"Simona Vetter" <simona@ffwll.ch>,
"Matthias Brugger" <matthias.bgg@gmail.com>,
"AngeloGioacchino Del Regno"
<angelogioacchino.delregno@collabora.com>,
"Jean Delvare" <jdelvare@suse.com>,
"Guenter Roeck" <linux@roeck-us.net>,
"Martin Tuma" <martin.tuma@digiteqautomotive.com>,
"Mauro Carvalho Chehab" <mchehab@kernel.org>,
"Andreas Noever" <andreas.noever@gmail.com>,
"Michael Jamet" <michael.jamet@intel.com>,
"Mika Westerberg" <mika.westerberg@linux.intel.com>,
"Yehezkel Bernat" <YehezkelShB@gmail.com>,
"Linus Walleij" <linus.walleij@linaro.org>,
"Bartosz Golaszewski" <brgl@bgdev.pl>,
"Andrew Lunn" <andrew@lunn.ch>,
"Vladimir Oltean" <olteanv@gmail.com>,
"David S. Miller" <davem@davemloft.net>,
"Eric Dumazet" <edumazet@google.com>,
"Jakub Kicinski" <kuba@kernel.org>,
"Paolo Abeni" <pabeni@redhat.com>,
"Simon Horman" <horms@kernel.org>,
"Uwe Kleine-König" <ukleinek@kernel.org>,
"Dan Williams" <dan.j.williams@intel.com>,
"Vishal Verma" <vishal.l.verma@intel.com>,
"Dave Jiang" <dave.jiang@intel.com>,
"Ira Weiny" <ira.weiny@intel.com>,
"Takashi Sakamoto" <o-takashi@sakamocchi.jp>,
"Jiri Slaby" <jirislaby@kernel.org>,
"Heikki Krogerus" <heikki.krogerus@linux.intel.com>,
"Srinivas Kandagatla" <srinivas.kandagatla@linaro.org>,
"Lee Duncan" <lduncan@suse.com>,
"Chris Leech" <cleech@redhat.com>,
"Mike Christie" <michael.christie@oracle.com>,
"James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>,
"Martin K. Petersen" <martin.petersen@oracle.com>,
"Nilesh Javali" <njavali@marvell.com>,
"Manish Rangankar" <mrangankar@marvell.com>,
GR-QLogic-Storage-Upstream@marvell.com,
"Davidlohr Bueso" <dave@stgolabs.net>,
"Jonathan Cameron" <jonathan.cameron@huawei.com>,
"Alison Schofield" <alison.schofield@intel.com>,
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"Laurentiu Tudor" <laurentiu.tudor@nxp.com>,
"Jens Axboe" <axboe@kernel.dk>,
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"Ard Biesheuvel" <ardb@kernel.org>,
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"Mathieu Poirier" <mathieu.poirier@linaro.org>
Cc: Zijun Hu <zijun_hu@icloud.com>,
linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org,
linux-mediatek@lists.infradead.org,
linux-arm-kernel@lists.infradead.org,
linux-hwmon@vger.kernel.org, linux-media@vger.kernel.org,
linux-usb@vger.kernel.org, linux-gpio@vger.kernel.org,
netdev@vger.kernel.org, linux-pwm@vger.kernel.org,
nvdimm@lists.linux.dev, linux1394-devel@lists.sourceforge.net,
linux-serial@vger.kernel.org, linux-sound@vger.kernel.org,
open-iscsi@googlegroups.com, linux-scsi@vger.kernel.org,
linux-cxl@vger.kernel.org, sparclinux@vger.kernel.org,
linux-block@vger.kernel.org, arm-scmi@vger.kernel.org,
linux-efi@vger.kernel.org, linux-remoteproc@vger.kernel.org,
Zijun Hu <quic_zijuhu@quicinc.com>
Subject: [PATCH v2 02/32] driver core: Introduce device_match_type() to match device with a device type
Date: Tue, 03 Dec 2024 08:33:24 +0800 [thread overview]
Message-ID: <20241203-const_dfc_done-v2-2-7436a98c497f@quicinc.com> (raw)
In-Reply-To: <20241203-const_dfc_done-v2-0-7436a98c497f@quicinc.com>
From: Zijun Hu <quic_zijuhu@quicinc.com>
Introduce device_match_type() to simplify operations below:
- Test if a device matches with specified device type.
- Find a device with specified device type via various device finding APIs.
device_find_child() will use it as argument to simplify operations later.
Signed-off-by: Zijun Hu <quic_zijuhu@quicinc.com>
---
drivers/base/core.c | 6 ++++++
include/linux/device/bus.h | 1 +
2 files changed, 7 insertions(+)
diff --git a/drivers/base/core.c b/drivers/base/core.c
index a122ea1d84a3b08fce16dd1abdfa7746d31dc430..5bda2edcd83149decd50bb5e9a0ed4267b1f8f6c 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -5239,6 +5239,12 @@ int device_match_name(struct device *dev, const void *name)
}
EXPORT_SYMBOL_GPL(device_match_name);
+int device_match_type(struct device *dev, const void *type)
+{
+ return dev->type == type;
+}
+EXPORT_SYMBOL_GPL(device_match_type);
+
int device_match_of_node(struct device *dev, const void *np)
{
return dev->of_node == np;
diff --git a/include/linux/device/bus.h b/include/linux/device/bus.h
index cdc4757217f9bb4b36b5c3b8a48bab45737e44c5..bc3fd74bb763e6d2d862859bd2ec3f0d443f2d7a 100644
--- a/include/linux/device/bus.h
+++ b/include/linux/device/bus.h
@@ -131,6 +131,7 @@ typedef int (*device_match_t)(struct device *dev, const void *data);
/* Generic device matching functions that all busses can use to match with */
int device_match_name(struct device *dev, const void *name);
+int device_match_type(struct device *dev, const void *type);
int device_match_of_node(struct device *dev, const void *np);
int device_match_fwnode(struct device *dev, const void *fwnode);
int device_match_devt(struct device *dev, const void *pdevt);
--
2.34.1
next prev parent reply other threads:[~2024-12-03 0:35 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-12-03 0:33 [PATCH v2 00/32] driver core: Constify API device_find_child() and adapt for various existing usages Zijun Hu
2024-12-03 0:33 ` [PATCH v2 01/32] driver core: Constify API device_find_child() Zijun Hu
2024-12-03 0:33 ` Zijun Hu [this message]
2024-12-03 0:33 ` [PATCH v2 03/32] drm/mediatek: Adapt for constified device_find_child() Zijun Hu
2024-12-03 0:33 ` [PATCH v2 04/32] hwmon: " Zijun Hu
2024-12-03 0:33 ` [PATCH v2 05/32] media: pci: mgb4: " Zijun Hu
2024-12-03 0:33 ` [PATCH v2 06/32] thunderbolt: " Zijun Hu
2024-12-03 0:33 ` [PATCH v2 07/32] gpio: sim: Remove gpio_sim_dev_match_fwnode() Zijun Hu
2024-12-03 0:33 ` [PATCH v2 08/32] net: dsa: Adapt for constified device_find_child() Zijun Hu
2024-12-03 0:33 ` [PATCH v2 09/32] pwm: " Zijun Hu
2024-12-03 0:33 ` [PATCH v2 10/32] nvdimm: " Zijun Hu
2024-12-03 0:33 ` [PATCH v2 11/32] libnvdimm: Simplify nd_namespace_store() implementation Zijun Hu
2024-12-03 2:29 ` [PATCH v2 00/32] driver core: Constify API device_find_child() and adapt for various existing usages quic_zijuhu
2024-12-03 12:00 ` Uwe Kleine-König
2024-12-03 12:23 ` Zijun Hu
2024-12-03 12:41 ` Greg Kroah-Hartman
2024-12-03 13:02 ` Zijun Hu
2024-12-03 13:58 ` James Bottomley
2024-12-03 14:07 ` Thomas Weißschuh
2024-12-03 14:56 ` Zijun Hu
2024-12-03 15:34 ` James Bottomley
2024-12-04 12:26 ` Zijun Hu
2024-12-04 16:42 ` James Bottomley
2024-12-05 0:07 ` Zijun Hu
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