* patch "platform/surface: aggregator: make ssam_bus_type constant and static" added to char-misc-testing
@ 2024-01-04 15:55 gregkh
0 siblings, 0 replies; only message in thread
From: gregkh @ 2024-01-04 15:55 UTC (permalink / raw
To: gregkh, hdegoede, ilpo.jarvinen, luzmaximilian,
platform-driver-x86
This is a note to let you know that I've just added the patch titled
platform/surface: aggregator: make ssam_bus_type constant and static
to my char-misc git tree which can be found at
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc.git
in the char-misc-testing branch.
The patch will show up in the next release of the linux-next tree
(usually sometime within the next 24 hours during the week.)
The patch will be merged to the char-misc-next branch sometime soon,
after it passes testing, and the merge window is open.
If you have any questions about this process, please let me know.
From 554644d2e07c890ad70aa584e6a9627bd0a6c8fe Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Tue, 19 Dec 2023 18:18:58 +0100
Subject: platform/surface: aggregator: make ssam_bus_type constant and static
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Now that the driver core can properly handle constant struct bus_type,
move the ssam_bus_type variable to be a constant structure as well,
placing it into read-only memory which can not be modified at runtime.
It's also never used outside of
drivers/platform/surface/aggregator/bus.c so make it static and don't
export it as no one is using it.
Cc: Maximilian Luz <luzmaximilian@gmail.com>
Cc: Hans de Goede <hdegoede@redhat.com>
Cc: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Cc: <platform-driver-x86@vger.kernel.org>
Reviewed-by: Maximilian Luz <luzmaximilian@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/2023121957-tapered-upswing-8326@gregkh
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/platform/surface/aggregator/bus.c | 5 +++--
include/linux/surface_aggregator/device.h | 1 -
2 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/platform/surface/aggregator/bus.c b/drivers/platform/surface/aggregator/bus.c
index 42ccd7f1c9b9..118caa651bec 100644
--- a/drivers/platform/surface/aggregator/bus.c
+++ b/drivers/platform/surface/aggregator/bus.c
@@ -35,6 +35,8 @@ static struct attribute *ssam_device_attrs[] = {
};
ATTRIBUTE_GROUPS(ssam_device);
+static const struct bus_type ssam_bus_type;
+
static int ssam_device_uevent(const struct device *dev, struct kobj_uevent_env *env)
{
const struct ssam_device *sdev = to_ssam_device(dev);
@@ -329,13 +331,12 @@ static void ssam_bus_remove(struct device *dev)
sdrv->remove(to_ssam_device(dev));
}
-struct bus_type ssam_bus_type = {
+static const struct bus_type ssam_bus_type = {
.name = "surface_aggregator",
.match = ssam_bus_match,
.probe = ssam_bus_probe,
.remove = ssam_bus_remove,
};
-EXPORT_SYMBOL_GPL(ssam_bus_type);
/**
* __ssam_device_driver_register() - Register a SSAM client device driver.
diff --git a/include/linux/surface_aggregator/device.h b/include/linux/surface_aggregator/device.h
index 42b249b4c24b..8cd8c38cf3f3 100644
--- a/include/linux/surface_aggregator/device.h
+++ b/include/linux/surface_aggregator/device.h
@@ -193,7 +193,6 @@ struct ssam_device_driver {
#ifdef CONFIG_SURFACE_AGGREGATOR_BUS
-extern struct bus_type ssam_bus_type;
extern const struct device_type ssam_device_type;
/**
--
2.43.0
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