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nfp: bpf: fix immed relocation for larger offsets 

Immed relocation is missing a shift which means for larger
offsets the lower and higher part of the address would be
ORed together.

Fixes: ce4ebfd859 ("nfp: bpf: add helpers for updating immediate instructions")
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Jiong Wang <jiong.wang@netronome.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
This commit is contained in:
Jakub Kicinski 2018-02-07 20:27:12 -08:00 committed by Daniel Borkmann
parent 035d808f7c
commit b7d9923547
1 changed files with 1 additions and 1 deletions
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2
drivers/net/ethernet/netronome/nfp/nfp_asm.c
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@ -107,7 +107,7 @@ u16 immed_get_value(u64 instr)
if (!unreg_is_imm(reg))
reg = FIELD_GET(OP_IMMED_B_SRC, instr);
return (reg & 0xff) | FIELD_GET(OP_IMMED_IMM, instr);
return (reg & 0xff) | FIELD_GET(OP_IMMED_IMM, instr) << 8;
}
void immed_set_value(u64 *instr, u16 immed)