powerpc/perf/imc: Use cpu_to_node() not topology_physical_package_id()

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init_imc_pmu() uses topology_physical_package_id() to detect the
node id of the processor it is on to get local memory, but that's
wrong, and can lead to crashes. Fix it to use cpu_to_node().

Fixes: 885dcd709b ("powerpc/perf: Add nest IMC PMU support")
Cc: stable@vger.kernel.org # v4.14+
Reported-By: Rob Lippert <rlippert@google.com>
Tested-By: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
Signed-off-by: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

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This commit is contained in:

Michael Ellerman 2017-10-16 00:13:41 +05:30

parent 62b49c4210

commit f3f1dfd600

1 changed files with 6 additions and 6 deletions

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arch/powerpc/perf/imc-pmu.c

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