linux-kernel - [PATCH 13/18] mfd: menelaus: Make it explicitly non-modular

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Wed, 18 Dec 2019 15:48:52 -0500
From:   Paul Gortmaker <paul.gortmaker@...driver.com>
To:     Lee Jones <lee.jones@...aro.org>
Cc:     linux-kernel@...r.kernel.org,
        Paul Gortmaker <paul.gortmaker@...driver.com>,
        Tony Lindgren <tony@...mide.com>, linux-omap@...r.kernel.org
Subject: [PATCH 13/18] mfd: menelaus: Make it explicitly non-modular

The Kconfig currently controlling compilation of this code is:

drivers/mfd/Kconfig:config MENELAUS
drivers/mfd/Kconfig:    bool "TI TWL92330/Menelaus PM chip"

...meaning that it currently is not being built as a module by anyone.

Lets remove the modular code that is essentially orphaned, so that
when reading the driver there is no doubt it is builtin-only.

We explicitly disallow a driver unbind, since that doesn't have a
sensible use case anyway, and it allows us to drop the ".remove"
code for non-modular drivers.

Since module_i2c_driver() uses the same init level priority as
builtin_i2c_driver() the init ordering remains unchanged with
this commit.

Also note that MODULE_DEVICE_TABLE is a no-op for non-modular code.

We also delete the MODULE_LICENSE tag etc. since all that information
is already contained at the top of the file in the comments.

Cc: Tony Lindgren <tony@...mide.com>
Cc: Lee Jones <lee.jones@...aro.org>
Cc: linux-omap@...r.kernel.org
Signed-off-by: Paul Gortmaker <paul.gortmaker@...driver.com>
---
 drivers/mfd/menelaus.c | 24 ++++--------------------
 1 file changed, 4 insertions(+), 20 deletions(-)

diff --git a/drivers/mfd/menelaus.c b/drivers/mfd/menelaus.c
index b64d3315a5e1..65a268d11aaa 100644
--- a/drivers/mfd/menelaus.c
+++ b/drivers/mfd/menelaus.c
@@ -18,7 +18,7 @@
  * Copyright (C) 2005, 2006 Nokia Corporation
  */
 
-#include <linux/module.h>
+#include <linux/init.h>
 #include <linux/i2c.h>
 #include <linux/interrupt.h>
 #include <linux/sched.h>
@@ -1222,33 +1222,17 @@ static int menelaus_probe(struct i2c_client *client,
 	return err;
 }
 
-static int menelaus_remove(struct i2c_client *client)
-{
-	struct menelaus_chip	*menelaus = i2c_get_clientdata(client);
-
-	free_irq(client->irq, menelaus);
-	flush_work(&menelaus->work);
-	the_menelaus = NULL;
-	return 0;
-}
-
 static const struct i2c_device_id menelaus_id[] = {
 	{ "menelaus", 0 },
 	{ }
 };
-MODULE_DEVICE_TABLE(i2c, menelaus_id);
 
 static struct i2c_driver menelaus_i2c_driver = {
 	.driver = {
-		.name		= DRIVER_NAME,
+		.name			= DRIVER_NAME,
+		.suppress_bind_attrs	= true,
 	},
 	.probe		= menelaus_probe,
-	.remove		= menelaus_remove,
 	.id_table	= menelaus_id,
 };
-
-module_i2c_driver(menelaus_i2c_driver);
-
-MODULE_AUTHOR("Texas Instruments, Inc. (and others)");
-MODULE_DESCRIPTION("I2C interface for Menelaus.");
-MODULE_LICENSE("GPL");
+builtin_i2c_driver(menelaus_i2c_driver);
-- 
2.7.4