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drivers/hwtracing: make coresight-* explicitly non-modular 

None of the Kconfig currently controlling compilation of any of
the files here are tristate, meaning that none of it currently
is being built as a module by anyone.

We need not be concerned about .remove functions and blocking the
unbind sysfs operations, since that was already done in a recent
commit.

Lets remove any remaining modular references, so that when reading the
drivers there is no doubt they are builtin-only.

All drivers get mostly the same changes, so they are handled in batch.
Changes are (1) convert to builtin_amba_driver, (2) delete module.h
include where unused, and (3) relocate the description into the
comments so we don't need MODULE_DESCRIPTION and associated tags.

The etm3x and etm4x use module_param_named, and have been adjusted
to just include moduleparam.h for that purpose.

In commit f309d44431 ("platform_device:
better support builtin boilerplate avoidance") we introduced the
builtin_driver macro.

Here we use that support and extend it to amba driver registration,
so where a driver is clearly non-modular and builtin-only, we can
update with the simple mapping of

     module_amba_driver(...)  ---> builtin_amba_driver(...)

Since module_amba_driver() uses the same init level priority as
builtin_amba_driver() the init ordering remains unchanged with
this commit.

Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Paul Gortmaker 2016-02-17 17:52:03 -07:00 committed by Greg Kroah-Hartman
parent 17534ceb83
commit 941943cf51
11 changed files with 33 additions and 45 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
drivers/hwtracing/coresight/coresight-etb10.c
View File

@ -1,4 +1,6 @@
/* Copyright (c) 2011-2012, The Linux Foundation. All rights reserved.
*
* Description: CoreSight Embedded Trace Buffer driver
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
@ -12,7 +14,6 @@
#include <asm/local.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/types.h>
#include <linux/device.h>
@ -781,8 +782,4 @@ static struct amba_driver etb_driver = {
.probe = etb_probe,
.id_table = etb_ids,
};
module_amba_driver(etb_driver);
MODULE_LICENSE("GPL v2");
MODULE_DESCRIPTION("CoreSight Embedded Trace Buffer driver");
builtin_amba_driver(etb_driver);

14
drivers/hwtracing/coresight/coresight-etm3x.c
View File

@ -1,4 +1,6 @@
/* Copyright (c) 2011-2012, The Linux Foundation. All rights reserved.
*
* Description: CoreSight Program Flow Trace driver
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
@ -11,7 +13,7 @@
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/init.h>
#include <linux/types.h>
#include <linux/device.h>
@ -38,6 +40,10 @@
#include "coresight-etm.h"
#include "coresight-etm-perf.h"
/*
* Not really modular but using module_param is the easiest way to
* remain consistent with existing use cases for now.
*/
static int boot_enable;
module_param_named(boot_enable, boot_enable, int, S_IRUGO);
@ -912,8 +918,4 @@ static struct amba_driver etm_driver = {
.probe = etm_probe,
.id_table = etm_ids,
};
module_amba_driver(etm_driver);
MODULE_LICENSE("GPL v2");
MODULE_DESCRIPTION("CoreSight Program Flow Trace driver");
builtin_amba_driver(etm_driver);

4
drivers/hwtracing/coresight/coresight-etm4x.c
View File

@ -15,7 +15,6 @@
#include <linux/init.h>
#include <linux/types.h>
#include <linux/device.h>
#include <linux/module.h>
#include <linux/io.h>
#include <linux/err.h>
#include <linux/fs.h>
@ -2710,5 +2709,4 @@ static struct amba_driver etm4x_driver = {
.probe = etm4_probe,
.id_table = etm4_ids,
};
module_amba_driver(etm4x_driver);
builtin_amba_driver(etm4x_driver);

9
drivers/hwtracing/coresight/coresight-funnel.c
View File

@ -1,4 +1,6 @@
/* Copyright (c) 2011-2012, The Linux Foundation. All rights reserved.
*
* Description: CoreSight Funnel driver
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
@ -11,7 +13,6 @@
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/types.h>
#include <linux/device.h>
@ -268,8 +269,4 @@ static struct amba_driver funnel_driver = {
.probe = funnel_probe,
.id_table = funnel_ids,
};
module_amba_driver(funnel_driver);
MODULE_LICENSE("GPL v2");
MODULE_DESCRIPTION("CoreSight Funnel driver");
builtin_amba_driver(funnel_driver);

4
drivers/hwtracing/coresight/coresight-replicator-qcom.c
View File

@ -15,7 +15,6 @@
#include <linux/clk.h>
#include <linux/coresight.h>
#include <linux/device.h>
#include <linux/module.h>
#include <linux/err.h>
#include <linux/init.h>
#include <linux/io.h>
@ -198,5 +197,4 @@ static struct amba_driver replicator_driver = {
.probe = replicator_probe,
.id_table = replicator_ids,
};
module_amba_driver(replicator_driver);
builtin_amba_driver(replicator_driver);

7
drivers/hwtracing/coresight/coresight-replicator.c
View File

@ -1,4 +1,6 @@
/* Copyright (c) 2011-2012, The Linux Foundation. All rights reserved.
*
* Description: CoreSight Replicator driver
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
@ -11,7 +13,6 @@
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/device.h>
#include <linux/platform_device.h>
#include <linux/io.h>
@ -166,8 +167,4 @@ static struct platform_driver replicator_driver = {
.suppress_bind_attrs = true,
},
};
builtin_platform_driver(replicator_driver);
MODULE_LICENSE("GPL v2");
MODULE_DESCRIPTION("CoreSight Replicator driver");

9
drivers/hwtracing/coresight/coresight-tmc.c
View File

@ -1,4 +1,6 @@
/* Copyright (c) 2012, The Linux Foundation. All rights reserved.
*
* Description: CoreSight Trace Memory Controller driver
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
@ -11,7 +13,6 @@
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/types.h>
#include <linux/device.h>
@ -782,8 +783,4 @@ static struct amba_driver tmc_driver = {
.probe = tmc_probe,
.id_table = tmc_ids,
};
module_amba_driver(tmc_driver);
MODULE_LICENSE("GPL v2");
MODULE_DESCRIPTION("CoreSight Trace Memory Controller driver");
builtin_amba_driver(tmc_driver);

9
drivers/hwtracing/coresight/coresight-tpiu.c
View File

@ -1,4 +1,6 @@
/* Copyright (c) 2011-2012, The Linux Foundation. All rights reserved.
*
* Description: CoreSight Trace Port Interface Unit driver
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
@ -11,7 +13,6 @@
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/device.h>
#include <linux/io.h>
@ -218,8 +219,4 @@ static struct amba_driver tpiu_driver = {
.probe = tpiu_probe,
.id_table = tpiu_ids,
};
module_amba_driver(tpiu_driver);
MODULE_LICENSE("GPL v2");
MODULE_DESCRIPTION("CoreSight Trace Port Interface Unit driver");
builtin_amba_driver(tpiu_driver);

3
drivers/hwtracing/coresight/coresight.c
View File

@ -11,7 +11,6 @@
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/types.h>
#include <linux/device.h>
@ -894,5 +893,3 @@ void coresight_unregister(struct coresight_device *csdev)
device_unregister(&csdev->dev);
}
EXPORT_SYMBOL_GPL(coresight_unregister);
MODULE_LICENSE("GPL v2");

1
drivers/hwtracing/coresight/of_coresight.c
View File

@ -10,7 +10,6 @@
* GNU General Public License for more details.
*/
#include <linux/module.h>
#include <linux/types.h>
#include <linux/err.h>
#include <linux/slab.h>

9
include/linux/amba/bus.h
View File

@ -163,4 +163,13 @@ struct amba_device name##_device = { \
#define module_amba_driver(__amba_drv) \
module_driver(__amba_drv, amba_driver_register, amba_driver_unregister)
/*
* builtin_amba_driver() - Helper macro for drivers that don't do anything
* special in driver initcall. This eliminates a lot of boilerplate. Each
* driver may only use this macro once, and calling it replaces the instance
* device_initcall().
*/
#define builtin_amba_driver(__amba_drv) \
builtin_driver(__amba_drv, amba_driver_register)
#endif