From 13182526173679c3be794c8149226fc258fdfdbe Mon Sep 17 00:00:00 2001 From: Jakub Kicinski Date: Fri, 20 May 2022 12:43:20 -0700 Subject: wifi: carl9170: silence a GCC 12 -Warray-bounds warning carl9170 has a big union (struct carl9170_cmd) with all the command types in it. But it allocates buffers only large enough for a given command. This upsets GCC 12: drivers/net/wireless/ath/carl9170/cmd.c:125:30: warning: array subscript ‘struct carl9170_cmd[0]’ is partly outside array bounds of ‘unsigned char[8]’ [-Warray-bounds] 125 | tmp->hdr.cmd = cmd; | ~~~~~~~~~~~~~^~~~~ Punt the warning to W=1 for now. Hopefully GCC will learn to recognize which fields are in-bounds. Acked-by: Christian Lamparter Acked-by: Kalle Valo Signed-off-by: Jakub Kicinski --- drivers/net/wireless/ath/carl9170/Makefile | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'drivers') diff --git a/drivers/net/wireless/ath/carl9170/Makefile b/drivers/net/wireless/ath/carl9170/Makefile index 1a81868ce26d..7463baa62fa8 100644 --- a/drivers/net/wireless/ath/carl9170/Makefile +++ b/drivers/net/wireless/ath/carl9170/Makefile @@ -3,3 +3,8 @@ carl9170-objs := main.o usb.o cmd.o mac.o phy.o led.o fw.o tx.o rx.o carl9170-$(CONFIG_CARL9170_DEBUGFS) += debug.o obj-$(CONFIG_CARL9170) += carl9170.o + +# FIXME: temporarily silence -Warray-bounds on non W=1+ builds +ifndef KBUILD_EXTRA_WARN +CFLAGS_cmd.o += -Wno-array-bounds +endif -- cgit v1.2.3