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nfp: bpf: zero extend 4 byte context loads 

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

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jakub Kicinski 2016-09-28 23:47:37 +01:00 committed by David S. Miller
parent 5038056e6b
commit 6cd80b5547
1 changed files with 2 additions and 0 deletions
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2
drivers/net/ethernet/netronome/nfp/nfp_bpf_jit.c
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@ -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;
}