From: Gustavo A. R. Silva Date: Wed, 22 Mar 2023 18:26:53 +0000 (-0600) Subject: wifi: rndis_wlan: Replace fake flex-array with flexible-array member X-Git-Tag: v6.4-rc1~132^2~133^2~24 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=06dabcccc08b6323c56062c7fdbb9dba88168565;p=thirdparty%2Fkernel%2Flinux.git wifi: rndis_wlan: Replace fake flex-array with flexible-array member Zero-length arrays as fake flexible arrays are deprecated and we are moving towards adopting C99 flexible-array members instead. Address the following warning found with GCC-13 and -fstrict-flex-array=3 enabled: drivers/net/wireless/rndis_wlan.c:2902:23: warning: array subscript 0 is outside array bounds of ‘struct ndis_80211_auth_request[0]’ [-Warray-bounds=] This helps with the ongoing efforts to tighten the FORTIFY_SOURCE routines on memcpy() and help us make progress towards globally enabling -fstrict-flex-arrays=3 [1]. Link: https://github.com/KSPP/linux/issues/21 Link: https://github.com/KSPP/linux/issues/274 Link: https://gcc.gnu.org/pipermail/gcc-patches/2022-October/602902.html [1] Signed-off-by: Gustavo A. R. Silva Signed-off-by: Kalle Valo Link: https://lore.kernel.org/r/ZBtIbU77L9eXqa4j@work --- diff --git a/drivers/net/wireless/legacy/rndis_wlan.c b/drivers/net/wireless/legacy/rndis_wlan.c index cc361d35a90f5..712038d46bdb3 100644 --- a/drivers/net/wireless/legacy/rndis_wlan.c +++ b/drivers/net/wireless/legacy/rndis_wlan.c @@ -209,7 +209,7 @@ struct ndis_80211_status_indication { union { __le32 media_stream_mode; __le32 radio_status; - struct ndis_80211_auth_request auth_request[0]; + DECLARE_FLEX_ARRAY(struct ndis_80211_auth_request, auth_request); struct ndis_80211_pmkid_cand_list cand_list; } u; } __packed;