From: Gustavo A. R. Silva <gustavoars@kernel.org>
Date: Wed, 17 May 2023 15:03:17 +0000 (+0300)
Subject: wifi: wil6210: wmi: Replace zero-length array with DECLARE_FLEX_ARRAY() helper
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=27044b57f8a5328f4f7517f8a15d9fe3171ab279;p=linux.git

wifi: wil6210: wmi: Replace zero-length array with DECLARE_FLEX_ARRAY() helper

Zero-length arrays are deprecated, and we are moving towards adopting
C99 flexible-array members, instead. So, replace zero-length arrays
declarations alone in structs with the new DECLARE_FLEX_ARRAY()
helper macro.

This helper allows for flexible-array members alone in structs.

Link: https://github.com/KSPP/linux/issues/193
Link: https://github.com/KSPP/linux/issues/288
Link: https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/ZGKHM+MWFsuqzTjm@work
---

diff --git a/drivers/net/wireless/ath/wil6210/wmi.h b/drivers/net/wireless/ath/wil6210/wmi.h
index 9affa45256095..71bf2ae27a984 100644
--- a/drivers/net/wireless/ath/wil6210/wmi.h
+++ b/drivers/net/wireless/ath/wil6210/wmi.h
@@ -2763,7 +2763,7 @@ struct wmi_rf_xpm_write_result_event {
 
 /* WMI_TX_MGMT_PACKET_EVENTID */
 struct wmi_tx_mgmt_packet_event {
-	u8 payload[0];
+	DECLARE_FLEX_ARRAY(u8, payload);
 } __packed;
 
 /* WMI_RX_MGMT_PACKET_EVENTID */