From: "Gustavo A. R. Silva" <gustavoars@kernel.org>
To: Kalle Valo <kvalo@kernel.org>,
"David S. Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>
Cc: ath10k@lists.infradead.org, linux-wireless@vger.kernel.org,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
"Gustavo A. R. Silva" <gustavoars@kernel.org>,
linux-hardening@vger.kernel.org
Subject: [PATCH][next] ath10k: Replace zero-length arrays with DECLARE_FLEX_ARRAY() helper
Date: Mon, 26 Sep 2022 16:41:54 -0500 [thread overview]
Message-ID: <YzIcoloIQBDqGlgc@work> (raw)
Zero-length arrays are deprecated and we are moving towards adopting
C99 flexible-array members, instead. So, replace zero-length arrays
declarations in anonymous union with the new DECLARE_FLEX_ARRAY()
helper macro.
This helper allows for flexible-array members in unions.
Link: https://github.com/KSPP/linux/issues/193
Link: https://github.com/KSPP/linux/issues/212
Link: https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
---
drivers/net/wireless/ath/ath10k/htt.h | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/net/wireless/ath/ath10k/htt.h b/drivers/net/wireless/ath/ath10k/htt.h
index f06cf39204e2..c051a22fce14 100644
--- a/drivers/net/wireless/ath/ath10k/htt.h
+++ b/drivers/net/wireless/ath/ath10k/htt.h
@@ -1108,8 +1108,10 @@ struct htt_rx_in_ord_ind {
u8 reserved;
__le16 msdu_count;
union {
- struct htt_rx_in_ord_msdu_desc msdu_descs32[0];
- struct htt_rx_in_ord_msdu_desc_ext msdu_descs64[0];
+ DECLARE_FLEX_ARRAY(struct htt_rx_in_ord_msdu_desc,
+ msdu_descs32);
+ DECLARE_FLEX_ARRAY(struct htt_rx_in_ord_msdu_desc_ext,
+ msdu_descs64);
} __packed;
} __packed;
--
2.34.1
next reply other threads:[~2022-09-26 21:42 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-26 21:41 Gustavo A. R. Silva [this message]
2022-09-26 22:00 ` [PATCH][next] ath10k: Replace zero-length arrays with DECLARE_FLEX_ARRAY() helper Kees Cook
2022-09-28 7:45 ` Kalle Valo
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