From: Gustavo A. R. Silva <gustavoars@kernel.org>
Date: Mon, 31 Aug 2020 13:25:42 +0000 (-0500)
Subject: Bluetooth: Replace zero-length array with flexible-array member
X-Git-Tag: rel_imx_5.10.35_2.0.0-somdevices.0~847^2~10
X-Git-Url: https://git.somdevices.com/?a=commitdiff_plain;h=b08eadd2726356eb4867397fafd046d2b8aad4bf;p=linux.git

Bluetooth: Replace zero-length array with flexible-array member

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”[1] for these cases. The older style of
one-element or zero-length arrays should no longer be used[2].

[1] https://en.wikipedia.org/wiki/Flexible_array_member
[2] https://www.kernel.org/doc/html/v5.9-rc1/process/deprecated.html#zero-length-and-one-element-arrays

Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
---

diff --git a/net/bluetooth/msft.c b/net/bluetooth/msft.c
index 8579bfeb2836..4b39534a14a1 100644
--- a/net/bluetooth/msft.c
+++ b/net/bluetooth/msft.c
@@ -12,12 +12,13 @@
 struct msft_cp_read_supported_features {
 	__u8   sub_opcode;
 } __packed;
+
 struct msft_rp_read_supported_features {
 	__u8   status;
 	__u8   sub_opcode;
 	__le64 features;
 	__u8   evt_prefix_len;
-	__u8   evt_prefix[0];
+	__u8   evt_prefix[];
 } __packed;
 
 struct msft_data {