linux-kernel - [PATCH 2/4] wifi: ath10k: Use DECLARE_FLEX_ARRAY() for ath10k_htc

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Message-ID: <20231127-flexarray-htc_record-v1-2-6be1f36126fd@quicinc.com>
Date:   Mon, 27 Nov 2023 08:14:48 -0800
From:   Jeff Johnson <quic_jjohnson@...cinc.com>
To:     Kalle Valo <kvalo@...nel.org>
CC:     "Gustavo A. R. Silva" <gustavoars@...nel.org>,
        Kees Cook <keescook@...omium.org>,
        <ath10k@...ts.infradead.org>, <ath11k@...ts.infradead.org>,
        <linux-wireless@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        Jeff Johnson <quic_jjohnson@...cinc.com>
Subject: [PATCH 2/4] wifi: ath10k: Use DECLARE_FLEX_ARRAY() for
 ath10k_htc_record

Transform the zero-length arrays in ath10k_htc_record into proper
flexible arrays via the DECLARE_FLEX_ARRAY() macro. This helps with
ongoing efforts to globally enable -Warray-bounds.

Signed-off-by: Jeff Johnson <quic_jjohnson@...cinc.com>
---
 drivers/net/wireless/ath/ath10k/htc.h | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/htc.h b/drivers/net/wireless/ath/ath10k/htc.h
index 9cbb901d35e5..c6c392f8630c 100644
--- a/drivers/net/wireless/ath/ath10k/htc.h
+++ b/drivers/net/wireless/ath/ath10k/htc.h
@@ -246,9 +246,9 @@ struct ath10k_htc_lookahead_bundle {
 struct ath10k_htc_record {
 	struct ath10k_ath10k_htc_record_hdr hdr;
 	union {
-		struct ath10k_htc_credit_report credit_report[0];
-		struct ath10k_htc_lookahead_report lookahead_report[0];
-		struct ath10k_htc_lookahead_bundle lookahead_bundle[0];
+		DECLARE_FLEX_ARRAY(struct ath10k_htc_credit_report, credit_report);
+		DECLARE_FLEX_ARRAY(struct ath10k_htc_lookahead_report, lookahead_report);
+		DECLARE_FLEX_ARRAY(struct ath10k_htc_lookahead_bundle, lookahead_bundle);
 	};
 } __packed __aligned(4);
 

-- 
2.42.0