From: "Gustavo A. R. Silva" <gustavoars@kernel.org>
To: Ping-Ke Shih <pkshih@realtek.com>, Kalle Valo <kvalo@kernel.org>,
"David S. Miller" <davem@davemloft.net>,
Jakub Kicinski <kuba@kernel.org>
Cc: 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] tw89: core.h: Replace zero-length array with flexible-array member
Date: Wed, 16 Feb 2022 13:50:47 -0600 [thread overview]
Message-ID: <20220216195047.GA904198@embeddedor> (raw)
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/v5.16/process/deprecated.html#zero-length-and-one-element-arrays
Link: https://github.com/KSPP/linux/issues/78
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
---
drivers/net/wireless/realtek/rtw89/core.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/wireless/realtek/rtw89/core.h b/drivers/net/wireless/realtek/rtw89/core.h
index 7c84556ec4ad..b15b529e19ed 100644
--- a/drivers/net/wireless/realtek/rtw89/core.h
+++ b/drivers/net/wireless/realtek/rtw89/core.h
@@ -2847,7 +2847,7 @@ struct rtw89_dev {
int napi_budget_countdown;
/* HCI related data, keep last */
- u8 priv[0] __aligned(sizeof(void *));
+ u8 priv[] __aligned(sizeof(void *));
};
static inline int rtw89_hci_tx_write(struct rtw89_dev *rtwdev,
--
2.27.0
next reply other threads:[~2022-02-16 19:43 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-02-16 19:50 Gustavo A. R. Silva [this message]
2022-02-16 20:35 ` [PATCH][next] tw89: core.h: Replace zero-length array with flexible-array member Kees Cook
2022-02-17 0:25 ` Pkshih
2022-02-17 2:42 ` Jakub Kicinski
2022-02-17 10:06 ` Kalle Valo
2022-02-21 9:01 ` [next] rtw89: " Kalle Valo
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