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From: Jeff Johnson <quic_jjohnson@quicinc.com>
Date: Tue, 5 Dec 2023 13:00:17 -0800
Subject: [PATCH v2] wifi: ath11k: Fix ath11k_htc_record flexible record
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Message-ID: <20231205-flexarray-htc_record-v2-1-fbb56d436951@quicinc.com>
To: Kalle Valo <kvalo@kernel.org>
CC: "Gustavo A. R. Silva" <gustavoars@kernel.org>,
        Kees Cook
	<keescook@chromium.org>, <ath11k@lists.infradead.org>,
        <linux-wireless@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
        "Jeff
 Johnson" <quic_jjohnson@quicinc.com>

Transform the zero-length ath11k_htc_record::credit_report array into
a proper flexible array. Since this is the only array in
ath11k_htc_record, remove the unnecessary union.

Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
---
Changes in v2:
- Original patches 1/4 2/4 3/4 already accepted
- This is original patch 4/4, updated to incorporate Gustavo's review
  comment, removing the `union` and just do a direct transformation
  [0] -> [ ]
- Link to v1: https://lore.kernel.org/r/20231127-flexarray-htc_record-v1-0-6be1f36126fd@quicinc.com
---
 drivers/net/wireless/ath/ath11k/htc.h | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/net/wireless/ath/ath11k/htc.h b/drivers/net/wireless/ath/ath11k/htc.h
index d5864a35e75b..86f77eacaea7 100644
--- a/drivers/net/wireless/ath/ath11k/htc.h
+++ b/drivers/net/wireless/ath/ath11k/htc.h
@@ -151,9 +151,7 @@ struct ath11k_htc_credit_report {
 
 struct ath11k_htc_record {
 	struct ath11k_htc_record_hdr hdr;
-	union {
-		struct ath11k_htc_credit_report credit_report[0];
-	};
+	struct ath11k_htc_credit_report credit_report[];
 } __packed __aligned(4);
 
 enum ath11k_htc_svc_gid {

---
base-commit: c8a5f34ad811743d1b3aeb5c54198eebd413bc6d
change-id: 20231116-flexarray-htc_record-ae46f039d4bf