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* [PATCH] net: ethernet: bgmac: Remove -Warray-bounds exception
@ 2022-10-06 19:20 Kees Cook
  2022-10-07  8:00 ` patchwork-bot+netdevbpf
  0 siblings, 1 reply; 2+ messages in thread
From: Kees Cook @ 2022-10-06 19:20 UTC (permalink / raw)
  To: David S. Miller, Eric Dumazet, Jakub Kicinski, Paolo Abeni
  Cc: Kees Cook, netdev, linux-kernel

GCC-12 emits false positive -Warray-bounds warnings with
CONFIG_UBSAN_SHIFT (-fsanitize=shift). This is fixed in GCC 13[1],
and there is top-level Makefile logic to remove -Warray-bounds for
known-bad GCC versions staring with commit f0be87c42cbd ("gcc-12: disable
'-Warray-bounds' universally for now").

Remove the local work-around.

[1] https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105679

Signed-off-by: Kees Cook <keescook@chromium.org>
---
 drivers/net/ethernet/broadcom/Makefile |    5 -----
 1 file changed, 5 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/Makefile b/drivers/net/ethernet/broadcom/Makefile
index 2e6c5f258a1f..0ddfb5b5d53c 100644
--- a/drivers/net/ethernet/broadcom/Makefile
+++ b/drivers/net/ethernet/broadcom/Makefile
@@ -17,8 +17,3 @@ 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


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2022-10-06 19:20 [PATCH] net: ethernet: bgmac: Remove -Warray-bounds exception Kees Cook
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