netdev - [PATCH] bluetooth: mgmt: Replace zero-length array with flexible-array member

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Date:   Fri, 21 Jan 2022 01:35:08 +0000
From:   cgel.zte@...il.com
To:     marcel@...tmann.org
Cc:     johan.hedberg@...il.com, luiz.dentz@...il.com, davem@...emloft.net,
        kuba@...nel.org, linux-bluetooth@...r.kernel.org,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        Changcheng Deng <deng.changcheng@....com.cn>,
        Zeal Robot <zealci@....com.cn>
Subject: [PATCH] bluetooth: mgmt: Replace zero-length array with flexible-array member

From: Changcheng Deng <deng.changcheng@....com.cn>

There is a regular need in the kernel to provide a way to declare having
a dynamically sized set of trailing elements in a structure. Kernel code
should always use "flexible array members" for these cases. The older
style of one-element or zero-length arrays should no longer be used.
Reference:
https://www.kernel.org/doc/html/latest/process/deprecated.html#zero-length-and-one-element-arrays

Reported-by: Zeal Robot <zealci@....com.cn>
Signed-off-by: Changcheng Deng <deng.changcheng@....com.cn>
---
 include/net/bluetooth/mgmt.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/net/bluetooth/mgmt.h b/include/net/bluetooth/mgmt.h
index 99266f7aebdc..3d26e6a3478b 100644
--- a/include/net/bluetooth/mgmt.h
+++ b/include/net/bluetooth/mgmt.h
@@ -1112,7 +1112,7 @@ struct mgmt_ev_adv_monitor_device_found {
 	__s8   rssi;
 	__le32 flags;
 	__le16 eir_len;
-	__u8   eir[0];
+	__u8   eir[];
 } __packed;
 
 #define MGMT_EV_ADV_MONITOR_DEVICE_LOST		0x0030
-- 
2.25.1