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Date:   Thu,  6 Oct 2022 12:20:52 -0700
From:   Kees Cook <>
To:     Felix Fietkau <>, John Crispin <>,
        Sean Wang <>,
        Mark Lee <>
Cc:     Kees Cook <>,,,
        "David S. Miller" <>,
        Eric Dumazet <>,
        Jakub Kicinski <>,
        Paolo Abeni <>
Subject: [PATCH] net: ethernet: mediatek: Remove -Warray-bounds exception

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.


Signed-off-by: Kees Cook <>
 drivers/net/ethernet/mediatek/Makefile |    5 -----
 1 file changed, 5 deletions(-)

diff --git a/drivers/net/ethernet/mediatek/Makefile b/drivers/net/ethernet/mediatek/Makefile
index fe66ba8793cf..45ba0970504a 100644
--- a/drivers/net/ethernet/mediatek/Makefile
+++ b/drivers/net/ethernet/mediatek/Makefile
@@ -11,8 +11,3 @@ mtk_eth-$(CONFIG_NET_MEDIATEK_SOC_WED) += mtk_wed_debugfs.o
 obj-$(CONFIG_NET_MEDIATEK_SOC_WED) += mtk_wed_ops.o
 obj-$(CONFIG_NET_MEDIATEK_STAR_EMAC) += mtk_star_emac.o
-# FIXME: temporarily silence -Warray-bounds on non W=1+ builds
-CFLAGS_mtk_ppe.o += -Wno-array-bounds

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