When a character array without a terminating NUL character has a static initializer, GCC 15's -Wunterminated-string-initialization will only warn if the array lacks the "nonstring" attribute[1]. Mark the arrays with __nonstring to and correctly identify the char array as "not a C string" and thereby eliminate the warning. Link: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117178 [1] Signed-off-by: Kees Cook <kees@xxxxxxxxxx> --- v1: https://lore.kernel.org/lkml/20250310222318.work.395-kees@xxxxxxxxxx/ v2: correctly split and fix subject Cc: Johannes Berg <johannes@xxxxxxxxxxxxxxxx> Cc: Eric Dumazet <edumazet@xxxxxxxxxx> Cc: En-Wei Wu <en-wei.wu@xxxxxxxxxxxxx> Cc: Kalle Valo <kvalo@xxxxxxxxxx> Cc: linux-wireless@xxxxxxxxxxxxxxx --- drivers/net/wireless/virtual/virt_wifi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/wireless/virtual/virt_wifi.c b/drivers/net/wireless/virtual/virt_wifi.c index 4ee374080466..fc122b79301a 100644 --- a/drivers/net/wireless/virtual/virt_wifi.c +++ b/drivers/net/wireless/virtual/virt_wifi.c @@ -146,7 +146,7 @@ static void virt_wifi_inform_bss(struct wiphy *wiphy) static const struct { u8 tag; u8 len; - u8 ssid[8]; + u8 ssid[8] __nonstring; } __packed ssid = { .tag = WLAN_EID_SSID, .len = VIRT_WIFI_SSID_LEN, -- 2.34.1
