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| author | Jason A. Donenfeld <Jason@zx2c4.com> | 2021-06-04 18:17:32 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-06-05 00:25:14 +0300 |
| commit | cc5060ca0285efe2728bced399a1955a7ce808b2 (patch) | |
| tree | e850506b1b951c200cb81c86ca85457030203877 /drivers/net/wireguard/Makefile | |
| parent | f8873d11d4121aad35024f9379e431e0c83abead (diff) | |
| download | linux-cc5060ca0285efe2728bced399a1955a7ce808b2.tar.xz | |
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: e7096c131e51 ("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/net/wireguard/Makefile')
| -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 fc52b2cb500b..dbe1f8514efc 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 |