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eth: tg3: silence the GCC 12 array-bounds warning 

GCC 12 currently generates a rather inconsistent warning:

drivers/net/ethernet/broadcom/tg3.c:17795:51: warning: array subscript 5 is above array bounds of ‘struct tg3_napi[5]’ [-Warray-bounds]
17795 |                 struct tg3_napi *tnapi = &tp->napi[i];
      |                                           ~~~~~~~~^~~

i is guaranteed < tp->irq_max which in turn is either 1 or 5.
There are more loops like this one in the driver, but strangely
GCC 12 dislikes only this single one.

Silence this silliness for now.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jakub Kicinski 2022-05-20 12:56:05 -07:00 committed by David S. Miller
parent 385bc51b41
commit 9dec850fd7
1 changed files with 5 additions and 0 deletions
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5
drivers/net/ethernet/broadcom/Makefile
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@ -17,3 +17,8 @@ obj-$(CONFIG_BGMAC_BCMA) += bgmac-bcma.o bgmac-bcma-mdio.o
obj-$(CONFIG_BGMAC_PLATFORM) += bgmac-platform.o
obj-$(CONFIG_SYSTEMPORT) += bcmsysport.o
obj-$(CONFIG_BNXT) += bnxt/
# FIXME: temporarily silence -Warray-bounds on non W=1+ builds
ifndef KBUILD_EXTRA_WARN
CFLAGS_tg3.o += -Wno-array-bounds
endif