linux-kernel - [PATCH] Input: synaptics-rmi4: fix array

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Message-ID: <20160210022744.GA8648@lkp-nex05>
Date:	Wed, 10 Feb 2016 10:27:44 +0800
From:	kbuild test robot <lkp@...el.com>
To:	Andrew Duggan <aduggan@...aptics.com>
Cc:	kbuild-all@...org, linux-input@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Andrew Duggan <aduggan@...aptics.com>,
	Dmitry Torokhov <dmitry.torokhov@...il.com>,
	Linus Walleij <linus.walleij@...aro.org>,
	Jiri Kosina <jikos@...nel.org>,
	Benjamin Tissoires <benjamin.tissoires@...hat.com>,
	Christopher Heiny <cheiny@...aptics.com>,
	Stephen Chandler Paul <cpaul@...hat.com>,
	Vincent Huang <vincent.huang@...synaptics.com>,
	Chris Healy <cphealy@...il.com>,
	Andrey Gusakov <andrey.gusakov@...entembedded.com>
Subject: [PATCH] Input: synaptics-rmi4: fix array_size.cocci warnings

drivers/input/rmi4/rmi_bus.c:295:20-21: WARNING: Use ARRAY_SIZE

 Use ARRAY_SIZE instead of dividing sizeof array with sizeof an element

Semantic patch information:
 This makes an effort to find cases where ARRAY_SIZE can be used such as
 where there is a division of sizeof the array by the sizeof its first
 element or by any indexed element or the element type. It replaces the
 division of the two sizeofs by ARRAY_SIZE.

Generated by: scripts/coccinelle/misc/array_size.cocci

CC: Andrew Duggan <aduggan@...aptics.com>
Signed-off-by: Fengguang Wu <fengguang.wu@...el.com>
---

 rmi_bus.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/input/rmi4/rmi_bus.c
+++ b/drivers/input/rmi4/rmi_bus.c
@@ -292,7 +292,7 @@ static struct rmi_function_handler *fn_h
 };
 
 #define RMI_FN_HANDLER_ARRAY_SIZE \
-	(sizeof(fn_handlers) / sizeof(struct rmi_function_handler *))
+	ARRAY_SIZE(fn_handlers)
 
 static void __rmi_unregister_function_handlers(int start_idx)
 {