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author | Jason A. Donenfeld <Jason@zx2c4.com> | 2021-06-04 17:17:32 +0200 |
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committer | David S. Miller <davem@davemloft.net> | 2021-06-04 14:25:14 -0700 |
commit | cb25fbb7237d8e3258f811c95a90798910bd84fd (patch) | |
tree | bb6eb462f0dc75027e9c0062b0ebeaec72a38786 /drivers | |
parent | ce66a19b21f704230b5ba75283e385cabd0ed836 (diff) | |
download | wireguard-linux-trimmed-cb25fbb7237d8e3258f811c95a90798910bd84fd.tar.gz wireguard-linux-trimmed-cb25fbb7237d8e3258f811c95a90798910bd84fd.zip |
wireguard: do not use -O3
Apparently, various versions of gcc have O3-related miscompiles. Looking
at the difference between -O2 and -O3 for gcc 11 doesn't indicate
miscompiles, but the difference also doesn't seem so significant for
performance that it's worth risking.
Link: https://lore.kernel.org/lkml/CAHk-=wjuoGyxDhAF8SsrTkN0-YfCx7E6jUN3ikC_tn2AKWTTsA@mail.gmail.com/
Link: https://lore.kernel.org/lkml/CAHmME9otB5Wwxp7H8bR_i2uH2esEMvoBMC8uEXBMH9p0q1s6Bw@mail.gmail.com/
Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Fixes: a8f1bc7bdea3 ("net: WireGuard secure network tunnel")
Cc: stable@vger.kernel.org
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/net/wireguard/Makefile | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/net/wireguard/Makefile b/drivers/net/wireguard/Makefile index fc52b2c..dbe1f85 100644 --- a/drivers/net/wireguard/Makefile +++ b/drivers/net/wireguard/Makefile @@ -1,5 +1,4 @@ -ccflags-y := -O3 -ccflags-y += -D'pr_fmt(fmt)=KBUILD_MODNAME ": " fmt' +ccflags-y := -D'pr_fmt(fmt)=KBUILD_MODNAME ": " fmt' ccflags-$(CONFIG_WIREGUARD_DEBUG) += -DDEBUG wireguard-y := main.o wireguard-y += noise.o |