From: "Enrico Weigelt, metux IT consult" <info@metux.net>
To: linux-kernel@vger.kernel.org
Cc: rafael@kernel.org, info@metux.net, linus.walleij@linaro.org,
bgolaszewski@baylibre.com, robh+dt@kernel.org,
frowand.list@gmail.com, pantelis.antoniou@konsulko.com,
linux-gpio@vger.kernel.org, devicetree@vger.kernel.org
Subject: [RFC PATCH 09/12] drivers: base: reintroduce find_bus()
Date: Mon, 8 Feb 2021 23:22:00 +0100 [thread overview]
Message-ID: <20210208222203.22335-10-info@metux.net> (raw)
In-Reply-To: <20210208222203.22335-1-info@metux.net>
---
drivers/base/bus.c | 14 ++++++++++----
include/linux/device/bus.h | 2 ++
2 files changed, 12 insertions(+), 4 deletions(-)
diff --git a/drivers/base/bus.c b/drivers/base/bus.c
index 450d3ed6cf1f..a06ae2786092 100644
--- a/drivers/base/bus.c
+++ b/drivers/base/bus.c
@@ -754,13 +754,19 @@ EXPORT_SYMBOL_GPL(device_reprobe);
*
* Note that kset_find_obj increments bus' reference count.
*/
-#if 0
-struct bus_type *find_bus(char *name)
+struct bus_type *find_bus(const char *name)
{
struct kobject *k = kset_find_obj(bus_kset, name);
- return k ? to_bus(k) : NULL;
+ struct subsys_private *subsys_priv;
+
+ if (!k)
+ return NULL;
+
+ subsys_priv = container_of(to_kset(k), struct subsys_private, subsys);
+
+ return subsys_priv->bus;
}
-#endif /* 0 */
+EXPORT_SYMBOL_GPL(find_bus);
static int bus_add_groups(struct bus_type *bus,
const struct attribute_group **groups)
diff --git a/include/linux/device/bus.h b/include/linux/device/bus.h
index 36a1dae26c95..b4cbcfe176c5 100644
--- a/include/linux/device/bus.h
+++ b/include/linux/device/bus.h
@@ -254,6 +254,8 @@ void bus_sort_breadthfirst(struct bus_type *bus,
int (*compare)(const struct device *a,
const struct device *b));
+struct bus_type *find_bus(const char *name);
+
/**
* bus_unregister_device_by_name - remove device by bus id from specific bus
* and unregister it from device core
--
2.11.0
next prev parent reply other threads:[~2021-02-08 22:25 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-08 22:21 RFC: oftree based setup of composite board devices Enrico Weigelt, metux IT consult
2021-02-08 22:21 ` [RFC PATCH 01/12] of: base: improve error message in of_phandle_iterator_next() Enrico Weigelt, metux IT consult
2021-02-08 22:21 ` [RFC PATCH 02/12] of: base: introduce of_find_node_by_phandle_from() Enrico Weigelt, metux IT consult
2021-02-08 22:21 ` [RFC PATCH 03/12] of: base: record root node in interator and use it for phandle lookup Enrico Weigelt, metux IT consult
2021-02-08 22:21 ` [RFC PATCH 04/12] of: base: introduce of_match_string() Enrico Weigelt, metux IT consult
2021-02-08 23:52 ` Rob Herring
2021-02-08 22:21 ` [RFC PATCH 05/12] of: kobj: __of_attach_node_sysfs(): add optional basename parameter Enrico Weigelt, metux IT consult
2021-02-08 22:21 ` [RFC PATCH 06/12] of: kobj: introduce of_attach_tree_sysfs() Enrico Weigelt, metux IT consult
2021-02-08 22:21 ` [RFC PATCH 07/12] gpio: amd-fch: add oftree probing support Enrico Weigelt, metux IT consult
2021-02-11 9:57 ` Bartosz Golaszewski
2021-03-01 14:51 ` Linus Walleij
2021-03-11 10:17 ` Enrico Weigelt, metux IT consult
2021-03-11 10:42 ` Andy Shevchenko
2021-03-18 8:00 ` Enrico Weigelt, metux IT consult
2021-03-25 9:09 ` Linus Walleij
2021-02-08 22:21 ` [RFC PATCH 08/12] drivers: base: introduce bus_remove_device_by_name() Enrico Weigelt, metux IT consult
2021-02-08 22:22 ` Enrico Weigelt, metux IT consult [this message]
2021-02-13 10:20 ` [RFC PATCH 09/12] drivers: base: reintroduce find_bus() Greg KH
2021-02-23 20:13 ` Enrico Weigelt, metux IT consult
2021-02-24 8:00 ` Greg KH
2021-02-24 15:30 ` Enrico Weigelt, metux IT consult
2021-02-24 16:28 ` Greg KH
2021-02-08 22:22 ` [RFC PATCH 10/12] export bus_get() / bus_put() Enrico Weigelt, metux IT consult
2021-02-08 22:22 ` [RFC PATCH 11/12] platform/x86: skeleton for oftree based board device initialization Enrico Weigelt, metux IT consult
2021-02-10 10:32 ` Andy Shevchenko
2021-02-12 9:58 ` Linus Walleij
2021-02-12 11:54 ` Enrico Weigelt, metux IT consult
2021-02-15 1:18 ` Frank Rowand
2021-02-23 20:41 ` Enrico Weigelt, metux IT consult
2021-03-02 13:33 ` Linus Walleij
2021-02-08 22:22 ` [RFC PATCH 12/12] platform/x86/of: add support for PC Engines APU v2/3/4 boards Enrico Weigelt, metux IT consult
2021-02-09 0:06 ` Rob Herring
2021-02-11 13:15 ` Enrico Weigelt, metux IT consult
2021-03-01 14:55 ` Linus Walleij
2021-02-08 23:48 ` RFC: oftree based setup of composite board devices Rob Herring
2021-02-10 22:13 ` Enrico Weigelt, metux IT consult
2021-02-15 1:12 ` Frank Rowand
2021-02-15 15:35 ` Andy Shevchenko
2021-02-24 13:00 ` Enrico Weigelt, metux IT consult
2021-02-24 23:14 ` Frank Rowand
2021-03-05 18:29 ` Rob Herring
2021-02-10 10:30 ` Andy Shevchenko
2021-02-11 11:08 ` Enrico Weigelt, metux IT consult
2021-02-11 11:41 ` Andy Shevchenko
2021-02-11 17:01 ` Enrico Weigelt, metux IT consult
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