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MIPS: Fix BREAK code interpretation heuristics
Do not lose the other half of the BREAK code where there is an upper half. This is so that e.g. `BREAK 7, 7' is not interpreted as a divide by zero trap, while `BREAK 0, 7' or `BREAK 7, 0' still are. Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/9697/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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@ -943,7 +943,7 @@ asmlinkage void do_bp(struct pt_regs *regs)
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* We handle both cases with a simple heuristics. --macro
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*/
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if (bcode >= (1 << 10))
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bcode >>= 10;
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bcode = ((bcode & ((1 << 10) - 1)) << 10) | (bcode >> 10);
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/*
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* notify the kprobe handlers, if instruction is likely to
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