Fix build with SMP disabled and preemption enabled. (b188ffe8) · Commits · e / devices / android_kernel_xiaomi_markw

arch/mips/kernel/gdb-stub.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -637,15 +637,18 @@ static struct gdb_bp_save async_bp;
		* and only one can be active at a time.
		*/
		extern spinlock_t smp_call_lock;

		void set_async_breakpoint(unsigned long *epc)
		{
		/* skip breaking into userland */
		if ((*epc & 0x80000000) == 0)
		return;

		#ifdef CONFIG_SMP
		/* avoid deadlock if someone is make IPC */
		if (spin_is_locked(&smp_call_lock))
		return;
		#endif

		async_bp.addr = *epc;
		*epc = (unsigned long)async_breakpoint;