Fix build with SMP disabled and preemption enabled.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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1 changed files with 3 additions and 0 deletions
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@ -637,15 +637,18 @@ static struct gdb_bp_save async_bp;
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* and only one can be active at a time.
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*/
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extern spinlock_t smp_call_lock;
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void set_async_breakpoint(unsigned long *epc)
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{
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/* skip breaking into userland */
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if ((*epc & 0x80000000) == 0)
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return;
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#ifdef CONFIG_SMP
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/* avoid deadlock if someone is make IPC */
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if (spin_is_locked(&smp_call_lock))
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return;
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#endif
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async_bp.addr = *epc;
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*epc = (unsigned long)async_breakpoint;
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