ARM: kprobes: Remove redundant code in space_1111
The tests to explicitly reject probing CPS, RFE and SRS instructions are redundant as the default case is now to reject undecoded patterns. Signed-off-by: Jon Medhurst <tixy@yxit.co.uk> Signed-off-by: Nicolas Pitre <nicolas.pitre@linaro.org>
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@ -927,14 +927,6 @@ prep_emulate_rdhi16rdlo12rs8rm0_wflags(kprobe_opcode_t insn,
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static enum kprobe_insn __kprobes
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space_1111(kprobe_opcode_t insn, struct arch_specific_insn *asi)
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{
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/* CPS mmod == 1 : 1111 0001 0000 xx10 xxxx xxxx xx0x xxxx */
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/* RFE : 1111 100x x0x1 xxxx xxxx 1010 xxxx xxxx */
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/* SRS : 1111 100x x1x0 1101 xxxx 0101 xxxx xxxx */
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if ((insn & 0xfff30020) == 0xf1020000 ||
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(insn & 0xfe500f00) == 0xf8100a00 ||
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(insn & 0xfe5f0f00) == 0xf84d0500)
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return INSN_REJECTED;
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/* memory hint : 1111 0100 x001 xxxx xxxx xxxx xxxx xxxx : */
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/* PLDI : 1111 0100 x101 xxxx xxxx xxxx xxxx xxxx : */
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/* PLDW : 1111 0101 x001 xxxx xxxx xxxx xxxx xxxx : */
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@ -950,7 +942,11 @@ space_1111(kprobe_opcode_t insn, struct arch_specific_insn *asi)
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return INSN_GOOD_NO_SLOT;
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}
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/* SETEND : 1111 0001 0000 0001 xxxx xxxx 0000 xxxx */
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/* CPS : 1111 0001 0000 xxx0 xxxx xxxx xx0x xxxx */
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/* SETEND: 1111 0001 0000 0001 xxxx xxxx 0000 xxxx */
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/* SRS : 1111 100x x1x0 xxxx xxxx xxxx xxxx xxxx */
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/* RFE : 1111 100x x0x1 xxxx xxxx xxxx xxxx xxxx */
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/* Coprocessor instructions... */
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/* MCRR2 : 1111 1100 0100 xxxx xxxx xxxx xxxx xxxx : (Rd != Rn) */
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