From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Jiong Wang <jiong.wang@netronome.com>,
Daniel Borkmann <daniel@iogearbox.net>,
Sasha Levin <sashal@kernel.org>,
netdev@vger.kernel.org, bpf@vger.kernel.org,
oss-drivers@netronome.com
Subject: [PATCH AUTOSEL 4.20 54/60] nfp: bpf: fix code-gen bug on BPF_ALU | BPF_XOR | BPF_K
Date: Wed, 13 Mar 2019 15:10:15 -0400 [thread overview]
Message-ID: <20190313191021.158171-54-sashal@kernel.org> (raw)
In-Reply-To: <20190313191021.158171-1-sashal@kernel.org>
From: Jiong Wang <jiong.wang@netronome.com>
[ Upstream commit 71c190249f0ced5b26377ea6bf829ab3af77a40c ]
The intended optimization should be A ^ 0 = A, not A ^ -1 = A.
Fixes: cd7df56ed3e6 ("nfp: add BPF to NFP code translator")
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Jiong Wang <jiong.wang@netronome.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/ethernet/netronome/nfp/bpf/jit.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/netronome/nfp/bpf/jit.c b/drivers/net/ethernet/netronome/nfp/bpf/jit.c
index 97d33bb4d84d..0762401ee3fe 100644
--- a/drivers/net/ethernet/netronome/nfp/bpf/jit.c
+++ b/drivers/net/ethernet/netronome/nfp/bpf/jit.c
@@ -2309,7 +2309,7 @@ static int xor_reg(struct nfp_prog *nfp_prog, struct nfp_insn_meta *meta)
static int xor_imm(struct nfp_prog *nfp_prog, struct nfp_insn_meta *meta)
{
- return wrp_alu32_imm(nfp_prog, meta, ALU_OP_XOR, !~meta->insn.imm);
+ return wrp_alu32_imm(nfp_prog, meta, ALU_OP_XOR, !meta->insn.imm);
}
static int and_reg(struct nfp_prog *nfp_prog, struct nfp_insn_meta *meta)
--
2.19.1
next prev parent reply other threads:[~2019-03-13 19:30 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20190313191021.158171-1-sashal@kernel.org>
2019-03-13 19:09 ` [PATCH AUTOSEL 4.20 15/60] net: systemport: Fix reception of BPDUs Sasha Levin
2019-03-13 19:09 ` [PATCH AUTOSEL 4.20 16/60] net: dsa: bcm_sf2: Do not assume DSA master supports WoL Sasha Levin
2019-03-13 19:09 ` [PATCH AUTOSEL 4.20 18/60] qmi_wwan: apply SET_DTR quirk to Sierra WP7607 Sasha Levin
2019-03-13 19:09 ` [PATCH AUTOSEL 4.20 19/60] net: mv643xx_eth: disable clk on error path in mv643xx_eth_shared_probe() Sasha Levin
2019-03-13 19:09 ` [PATCH AUTOSEL 4.20 20/60] xfrm: Fix inbound traffic via XFRM interfaces across network namespaces Sasha Levin
2019-03-13 19:09 ` [PATCH AUTOSEL 4.20 24/60] bpf/test_run: fix unkillable BPF_PROG_TEST_RUN Sasha Levin
2019-03-13 19:09 ` [PATCH AUTOSEL 4.20 25/60] qed: Fix iWARP buffer size provided for syn packet processing Sasha Levin
2019-03-13 19:09 ` [PATCH AUTOSEL 4.20 26/60] qed: Fix iWARP syn packet mac address validation Sasha Levin
2019-03-13 19:09 ` [PATCH AUTOSEL 4.20 33/60] net: marvell: mvneta: fix DMA debug warning Sasha Levin
2019-03-13 19:10 ` [PATCH AUTOSEL 4.20 40/60] ixgbe: fix older devices that do not support IXGBE_MRQC_L3L4TXSWEN Sasha Levin
2019-03-13 19:10 ` [PATCH AUTOSEL 4.20 41/60] i40e: fix potential RX buffer starvation for AF_XDP Sasha Levin
2019-03-13 19:10 ` [PATCH AUTOSEL 4.20 42/60] ixgbe: " Sasha Levin
2019-03-13 19:10 ` [PATCH AUTOSEL 4.20 46/60] i40e: fix XDP_REDIRECT/XDP xmit ring cleanup race Sasha Levin
2019-03-13 19:10 ` [PATCH AUTOSEL 4.20 47/60] ixgbe: don't do any AF_XDP zero-copy transmit if netif is not OK Sasha Levin
2019-03-13 19:10 ` [PATCH AUTOSEL 4.20 49/60] phonet: fix building with clang Sasha Levin
2019-03-13 19:10 ` [PATCH AUTOSEL 4.20 50/60] mac80211_hwsim: propagate genlmsg_reply return code Sasha Levin
2019-03-13 19:10 ` [PATCH AUTOSEL 4.20 51/60] bpf, lpm: fix lookup bug in map_delete_elem Sasha Levin
2019-03-13 19:10 ` [PATCH AUTOSEL 4.20 52/60] net: thunderx: make CFG_DONE message to run through generic send-ack sequence Sasha Levin
2019-03-13 19:10 ` [PATCH AUTOSEL 4.20 53/60] net: thunderx: add nicvf_send_msg_to_pf result check for set_rx_mode_task Sasha Levin
2019-03-13 19:10 ` Sasha Levin [this message]
2019-03-13 19:10 ` [PATCH AUTOSEL 4.20 55/60] nfp: bpf: fix ALU32 high bits clearance bug Sasha Levin
2019-03-13 19:10 ` [PATCH AUTOSEL 4.20 56/60] bnxt_en: Fix typo in firmware message timeout logic Sasha Levin
2019-03-13 19:10 ` [PATCH AUTOSEL 4.20 57/60] bnxt_en: Wait longer for the firmware message response to complete Sasha Levin
2019-03-13 19:10 ` [PATCH AUTOSEL 4.20 58/60] mdio_bus: Fix use-after-free on device_register fails Sasha Levin
2019-03-13 19:10 ` [PATCH AUTOSEL 4.20 59/60] net: set static variable an initial value in atl2_probe() Sasha Levin
2019-03-13 19:10 ` [PATCH AUTOSEL 4.20 60/60] selftests: fib_tests: sleep after changing carrier. again Sasha Levin
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