[PATCH net-next] nfp: bpf: zero extend 4 byte context loads

Subsystems: netronome ethernet drivers, networking drivers, the rest

STALE3665d

2 messages, 2 authors, 2016-09-30 · open the first message on its own page

[PATCH net-next] nfp: bpf: zero extend 4 byte context loads

From: Jakub Kicinski <hidden>
Date: 2016-09-28 22:47:49

Set upper 32 bits of destination register to zeros after
load from the context structure.

Signed-off-by: Jakub Kicinski <redacted>
---
 drivers/net/ethernet/netronome/nfp/nfp_bpf_jit.c | 2 ++
 1 file changed, 2 insertions(+)
diff --git a/drivers/net/ethernet/netronome/nfp/nfp_bpf_jit.c b/drivers/net/ethernet/netronome/nfp/nfp_bpf_jit.c
index 3de819acd68c..f8df5300f49c 100644
--- a/drivers/net/ethernet/netronome/nfp/nfp_bpf_jit.c
+++ b/drivers/net/ethernet/netronome/nfp/nfp_bpf_jit.c
@@ -1134,6 +1134,8 @@ static int mem_ldx4(struct nfp_prog *nfp_prog, struct nfp_insn_meta *meta)
 	else
 		return -ENOTSUPP;
 
+	wrp_immed(nfp_prog, reg_both(meta->insn.dst_reg * 2 + 1), 0);
+
 	return 0;
 }
 
-- 
1.9.1

Re: [PATCH net-next] nfp: bpf: zero extend 4 byte context loads

From: David Miller <davem@davemloft.net>
Date: 2016-09-30 06:10:44

From: Jakub Kicinski <redacted>
Date: Wed, 28 Sep 2016 23:47:37 +0100
Set upper 32 bits of destination register to zeros after
load from the context structure.

Signed-off-by: Jakub Kicinski <redacted>
Applied, thanks.
Keyboard shortcuts
hback out one level
jnext message in thread
kprevious message in thread
ldrill in
Escclose help / fold thread tree
?toggle this help