[PATCH] staging: fbtft: Use ARRAY_SIZE() to get argument count

From: Deepak R Varma <drv@mailo.com>
To: outreachy@lists.linux.dev,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	dri-devel@lists.freedesktop.org, linux-fbdev@vger.kernel.org,
	linux-staging@lists.linux.dev, linux-kernel@vger.kernel.org
Subject: [PATCH] staging: fbtft: Use ARRAY_SIZE() to get argument count
Date: Fri, 28 Oct 2022 19:00:05 +0530	[thread overview]
Message-ID: <Y1vZXUi0Bjiub8HZ@ubunlion> (raw)

The ARRAY_SIZE(foo) macro should be preferred over sizeof operator
based computation such as sizeof(foo)/sizeof(foo[0]) for finding
number of elements in an array. Issue identified using coccicheck.

Signed-off-by: Deepak R Varma <drv@mailo.com>
---
 drivers/staging/fbtft/fbtft.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/fbtft/fbtft.h b/drivers/staging/fbtft/fbtft.h
index 2c2b5f1c1df3..5506a473be91 100644
--- a/drivers/staging/fbtft/fbtft.h
+++ b/drivers/staging/fbtft/fbtft.h
@@ -231,7 +231,7 @@ struct fbtft_par {
 	bool polarity;
 };

-#define NUMARGS(...)  (sizeof((int[]){__VA_ARGS__}) / sizeof(int))
+#define NUMARGS(...)  ARRAY_SIZE(((int[]){ __VA_ARGS__ }))

 #define write_reg(par, ...)                                            \
 	((par)->fbtftops.write_register(par, NUMARGS(__VA_ARGS__), __VA_ARGS__))
--
2.34.1



