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

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Reading from the HI register to get the division result is wrong.
The quotient is placed in the LO register.

Signed-off-by: Markos 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: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Markos Chandras
2014-06-23 10:38:47 +01:00
committed by Ralf Baechle
parent 84c68cbc66
commit 35a8e16abe
1 changed files with 1 additions and 1 deletions
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2
arch/mips/net/bpf_jit.c
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@@ -408,7 +408,7 @@ static inline void emit_div(unsigned int dst, unsigned int src,
u32 *p = &ctx->target[ctx->idx]; u32 *p = &ctx->target[ctx->idx];
uasm_i_divu(&p, dst, src); uasm_i_divu(&p, dst, src);
p = &ctx->target[ctx->idx + 1]; p = &ctx->target[ctx->idx + 1];
uasm_i_mfhi(&p, dst); uasm_i_mflo(&p, dst);
} }
ctx->idx += 2; /* 2 insts */ ctx->idx += 2; /* 2 insts */
} }