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wifi: rndis_wlan: Replace fake flex-array with flexible-array member

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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 <gustavoars@kernel.org>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/ZBtIbU77L9eXqa4j@work
This commit is contained in:
Gustavo A. R. Silva 2023-03-22 12:26:53 -06:00 committed by Kalle Valo
parent 703f15b6dc
commit 06dabcccc0
1 changed files with 1 additions and 1 deletions
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2
drivers/net/wireless/legacy/rndis_wlan.c
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@ -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;