提交 35a8e16a 编写于 作者: M Markos Chandras 提交者: Ralf Baechle

MIPS: bpf: Use the LO register to get division's quotient

Reading from the HI register to get the division result is wrong.
The quotient is placed in the LO register.
Signed-off-by: NMarkos Chandras <markos.chandras@imgtec.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Daniel Borkmann <dborkman@redhat.com>
Cc: Alexei Starovoitov <ast@plumgrid.com>
Cc: netdev@vger.kernel.org
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/7122/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
上级 84c68cbc
......@@ -408,7 +408,7 @@ static inline void emit_div(unsigned int dst, unsigned int src,
u32 *p = &ctx->target[ctx->idx];
uasm_i_divu(&p, dst, src);
p = &ctx->target[ctx->idx + 1];
uasm_i_mfhi(&p, dst);
uasm_i_mflo(&p, dst);
}
ctx->idx += 2; /* 2 insts */
}
......
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