netdev - [PATCH] net/macmace: Replace zero-length array with DECLARE_FLEX

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Date: Sun, 30 Jul 2023 16:14:42 -0700
From: Atul Raut <rauji.raut@...il.com>
To: avem@...emloft.net
Cc: netdev@...r.kernel.org,
	kuba@...nel.org,
	pabeni@...hat.com,
	rafal@...ecki.pl,
	linux-kernel-mentees@...ts.linuxfoundation.org
Subject: [PATCH] net/macmace: Replace zero-length array with DECLARE_FLEX_ARRAY() helper

Since zero-length arrays are deprecated, we are replacing
them with C99 flexible-array members. As a result, instead
of declaring a zero-length array, use the new
DECLARE_FLEX_ARRAY() helper macro.

This fixes warnings such as:
./drivers/net/ethernet/apple/macmace.c:80:4-8: WARNING use flexible-array member instead (https://www.kernel.org/doc/html/latest/process/deprecated.html#zero-length-and-one-element-arrays)

Signed-off-by: Atul Raut <rauji.raut@...il.com>
---
 drivers/net/ethernet/apple/macmace.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/apple/macmace.c b/drivers/net/ethernet/apple/macmace.c
index 8fcaf1639920..8775c3234e91 100644
--- a/drivers/net/ethernet/apple/macmace.c
+++ b/drivers/net/ethernet/apple/macmace.c
@@ -77,7 +77,7 @@ struct mace_frame {
 	u8	pad4;
 	u32	pad5;
 	u32	pad6;
-	u8	data[1];
+	DECLARE_FLEX_ARRAY(u8, data);
 	/* And frame continues.. */
 };
 
-- 
2.34.1