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From: Vaishali Thakkar <vthakkar1994@gmail.com>
To: Evgeniy Polyakov <zbr@ioremap.net>
Cc: linux-kernel@vger.kernel.org
Subject: [PATCH] w1: Use module_pci_driver
Date: Tue, 7 Jul 2015 12:23:49 +0530	[thread overview]
Message-ID: <20150707065349.GA11853@vaishali-Ideapad-Z570> (raw)

Use module_pci_driver for drivers whose init and exit functions
only register and unregister, respectively.

A simplified version of the Coccinelle semantic patch that performs
this transformation is as follows:

@a@
identifier f, x;
@@
-static f(...) { return pci_register_driver(&x); }

@b depends on a@
identifier e, a.x;
@@
-static e(...) { pci_unregister_driver(&x); }

@c depends on a && b@
identifier a.f;
declarer name module_init;
@@
-module_init(f);

@d depends on a && b && c@
identifier b.e, a.x;
declarer name module_exit;
declarer name module_pci_driver;
@@
-module_exit(e);
+module_pci_driver(x);

Signed-off-by: Vaishali Thakkar <vthakkar1994@gmail.com>
---
 drivers/w1/masters/matrox_w1.c | 14 +-------------
 1 file changed, 1 insertion(+), 13 deletions(-)

diff --git a/drivers/w1/masters/matrox_w1.c b/drivers/w1/masters/matrox_w1.c
index d8667b0..684bc9d 100644
--- a/drivers/w1/masters/matrox_w1.c
+++ b/drivers/w1/masters/matrox_w1.c
@@ -232,16 +232,4 @@ static void matrox_w1_remove(struct pci_dev *pdev)
 	}
 	kfree(dev);
 }
-
-static int __init matrox_w1_init(void)
-{
-	return pci_register_driver(&matrox_w1_pci_driver);
-}
-
-static void __exit matrox_w1_fini(void)
-{
-	pci_unregister_driver(&matrox_w1_pci_driver);
-}
-
-module_init(matrox_w1_init);
-module_exit(matrox_w1_fini);
+module_pci_driver(matrox_w1_pci_driver);
-- 
1.9.1


             reply	other threads:[~2015-07-07  6:54 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-07-07  6:53 Vaishali Thakkar [this message]
2015-07-11 14:42 ` Evgeniy Polyakov

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