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Commit 8642b31b authored by Helge Deller's avatar Helge Deller
Browse files

parisc: Fix detection of nonsynchronous cr16 cycle counters 



For CPUs which have an unknown or invalid CPU location (physical location)
assume that their cycle counters aren't syncronized across CPUs.

Signed-off-by: default avatarHelge Deller <deller@gmx.de>
Fixes: c8c37359 ("parisc: Enhance detection of synchronous cr16 clocksources")
Cc: stable@vger.kernel.org # 4.13+
Signed-off-by: default avatarHelge Deller <deller@gmx.de>
parent 2aae008c

arch/parisc/kernel/time.c

+4 −1
Original line number Diff line number Diff line
@@ -253,7 +253,10 @@ static int __init init_cr16_clocksource(void) 
		cpu0_loc = per_cpu(cpu_data, 0).cpu_loc;



		for_each_online_cpu(cpu) {

			if (cpu0_loc == per_cpu(cpu_data, cpu).cpu_loc)

			if (cpu == 0)

				continue;

			if ((cpu0_loc != 0) &&

			    (cpu0_loc == per_cpu(cpu_data, cpu).cpu_loc))

				continue;



			clocksource_cr16.name = "cr16_unstable";