linux-kernel - [PATCH 09/10] driver core: drop use of BUS

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Date:   Fri, 21 Dec 2018 08:54:41 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        "Rafael J. Wysocki" <rafael.j.wysocki@...el.com>
Subject: [PATCH 09/10] driver core: drop use of BUS_ATTR()

We are trying to get rid of BUS_ATTR() so drop the last user of it from
the tree.  We had to "open code" it in order to prevent a function name
conflict due to the use of DEVICE_ATTR_WO() earlier in the file :(

Cc: "Rafael J. Wysocki" <rafael.j.wysocki@...el.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/base/bus.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/base/bus.c b/drivers/base/bus.c
index f10d56c61a46..575bd6d752bd 100644
--- a/drivers/base/bus.c
+++ b/drivers/base/bus.c
@@ -830,7 +830,14 @@ static ssize_t bus_uevent_store(struct bus_type *bus,
 	kobject_synth_uevent(&bus->p->subsys.kobj, buf, count);
 	return count;
 }
-static BUS_ATTR(uevent, S_IWUSR, NULL, bus_uevent_store);
+/*
+ * "open code" the old BUS_ATTR() macro here.  We want to use BUS_ATTR_WO()
+ * here, but can not use it as earlier in the file we have
+ * DEVICE_ATTR_WO(uevent), which would cause a clash with the with the store
+ * function name.
+ */
+static struct bus_attribute bus_attr_uevent = __ATTR(uevent, S_IWUSR, NULL,
+						     bus_uevent_store);
 
 /**
  * bus_register - register a driver-core subsystem
-- 
2.20.1