[tip:smp/urgent] coresight/etm3/4x: Consolidate hotplug state space

From: tip-bot for Thomas Gleixner
Date: Sun Dec 25 2016 - 05:08:30 EST


Commit-ID: 36e5b0e39194b09a10f19697fb9ea4ccc44eb166
Gitweb: http://git.kernel.org/tip/36e5b0e39194b09a10f19697fb9ea4ccc44eb166
Author: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
AuthorDate: Wed, 21 Dec 2016 20:19:55 +0100
Committer: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
CommitDate: Sun, 25 Dec 2016 10:47:44 +0100

coresight/etm3/4x: Consolidate hotplug state space

Even if both drivers are compiled in only one instance can run on a given
system depending on the available tracer cell.

So having seperate hotplug states for them is pointless.

Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Sebastian Siewior <bigeasy@xxxxxxxxxxxxx>
Cc: Mathieu Poirier <mathieu.poirier@xxxxxxxxxx>
Link: http://lkml.kernel.org/r/20161221192112.162765484@xxxxxxxxxxxxx
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>

---
drivers/hwtracing/coresight/coresight-etm4x.c | 4 ++--
include/linux/cpuhotplug.h | 1 -
2 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/hwtracing/coresight/coresight-etm4x.c b/drivers/hwtracing/coresight/coresight-etm4x.c
index 5edc63f..031480f 100644
--- a/drivers/hwtracing/coresight/coresight-etm4x.c
+++ b/drivers/hwtracing/coresight/coresight-etm4x.c
@@ -986,7 +986,7 @@ static int etm4_probe(struct amba_device *adev, const struct amba_id *id)
dev_err(dev, "ETM arch init failed\n");

if (!etm4_count++) {
- cpuhp_setup_state_nocalls(CPUHP_AP_ARM_CORESIGHT4_STARTING,
+ cpuhp_setup_state_nocalls(CPUHP_AP_ARM_CORESIGHT_STARTING,
"arm/coresight4:starting",
etm4_starting_cpu, etm4_dying_cpu);
ret = cpuhp_setup_state_nocalls(CPUHP_AP_ONLINE_DYN,
@@ -1037,7 +1037,7 @@ static int etm4_probe(struct amba_device *adev, const struct amba_id *id)

err_arch_supported:
if (--etm4_count == 0) {
- cpuhp_remove_state_nocalls(CPUHP_AP_ARM_CORESIGHT4_STARTING);
+ cpuhp_remove_state_nocalls(CPUHP_AP_ARM_CORESIGHT_STARTING);
if (hp_online)
cpuhp_remove_state_nocalls(hp_online);
}
diff --git a/include/linux/cpuhotplug.h b/include/linux/cpuhotplug.h
index 0d5ef85..4a938be 100644
--- a/include/linux/cpuhotplug.h
+++ b/include/linux/cpuhotplug.h
@@ -119,7 +119,6 @@ enum cpuhp_state {
CPUHP_AP_DUMMY_TIMER_STARTING,
CPUHP_AP_ARM_XEN_STARTING,
CPUHP_AP_ARM_CORESIGHT_STARTING,
- CPUHP_AP_ARM_CORESIGHT4_STARTING,
CPUHP_AP_ARM64_ISNDEP_STARTING,
CPUHP_AP_SMPCFD_DYING,
CPUHP_AP_X86_TBOOT_DYING,