arm64: perf: replace arch_find_n_match_cpu_physical_id with of_cpu_device_node_get
authorSudeep Holla <sudeep.holla@arm.com>
Tue, 30 Jun 2015 12:56:56 +0000 (13:56 +0100)
committerWill Deacon <will.deacon@arm.com>
Mon, 27 Jul 2015 10:08:38 +0000 (11:08 +0100)
commitd09ce834dfffd93aa4586b3e07faaf901ee8706f
tree34de1308aa1e53b8cc2ad0a875a9c1d4429bdc0c
parent2d23ed04de933625bc777cc474d2cd9a2a3fa860
arm64: perf: replace arch_find_n_match_cpu_physical_id with of_cpu_device_node_get

arch_find_n_match_cpu_physical_id parses the device tree to get the
device node for a given logical cpu index. However, since ARM PMUs get
probed after the CPU device nodes are stashed while registering the
cpus, we can use of_cpu_device_node_get to avoid another DT parse.

This patch replaces arch_find_n_match_cpu_physical_id with
of_cpu_device_node_get to reuse the stashed value directly instead.

Cc: Will Deacon <will.deacon@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
arch/arm64/kernel/perf_event.c