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Subject[PATCH][next] Bluetooth: HCI: Replace zero-length arrays with flexible-array members
Zero-length arrays are deprecated[1] and we are moving towards
adopting C99 flexible-array members instead. So, replace zero-length
arrays in a couple of structures with flex-array members.

This helps with the ongoing efforts to tighten the FORTIFY_SOURCE
routines on memcpy() and help us make progress towards globally
enabling -fstrict-flex-arrays=3 [2].

Link: https://www.kernel.org/doc/html/latest/process/deprecated.html#zero-length-and-one-element-arrays [1]
Link: https://gcc.gnu.org/pipermail/gcc-patches/2022-October/602902.html [2]
Link: https://github.com/KSPP/linux/issues/78
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
---
include/net/bluetooth/hci.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index 8d773b042c85..400f8a7d0c3f 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -2156,7 +2156,7 @@ struct hci_cp_le_big_create_sync {
__u8 mse;
__le16 timeout;
__u8 num_bis;
- __u8 bis[0];
+ __u8 bis[];
} __packed;

#define HCI_OP_LE_BIG_TERM_SYNC 0x206c
@@ -2174,7 +2174,7 @@ struct hci_cp_le_setup_iso_path {
__le16 codec_vid;
__u8 delay[3];
__u8 codec_cfg_len;
- __u8 codec_cfg[0];
+ __u8 codec_cfg[];
} __packed;

struct hci_rp_le_setup_iso_path {
--
2.34.1
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