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authorDirk Behme <dirk.behme@de.bosch.com>2016-02-04 18:06:10 +0100
committerWill Deacon <will.deacon@arm.com>2016-02-09 11:18:39 +0000
commitc6b90653f1f7ea383734f8ce9e8df285a0c23f5b (patch)
treed9ed3415c8c573894d82331aec651d2077842ecc /drivers/perf
parent8d1a0ae724ad74ef7946a45e3b2d3e01f39df02b (diff)
downloadop-kernel-dev-c6b90653f1f7ea383734f8ce9e8df285a0c23f5b.zip
op-kernel-dev-c6b90653f1f7ea383734f8ce9e8df285a0c23f5b.tar.gz
drivers/perf: arm_pmu: make info messages more verbose
On a big.LITTLE system e.g. with Cortex A57 and A53 in case not all cores are online at PMU probe time we might get hw perfevents: failed to probe PMU! hw perfevents: failed to register PMU devices! making it unclear which cores failed, here. Add the device tree full name which failed and the error value resulting in a more verbose and helpful message like hw perfevents: /soc/pmu_a53: failed to probe PMU! Error -6 hw perfevents: /soc/pmu_a53: failed to register PMU devices! Error -6 Signed-off-by: Dirk Behme <dirk.behme@de.bosch.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'drivers/perf')
-rw-r--r--drivers/perf/arm_pmu.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/perf/arm_pmu.c b/drivers/perf/arm_pmu.c
index eb5bee0..ca63a45 100644
--- a/drivers/perf/arm_pmu.c
+++ b/drivers/perf/arm_pmu.c
@@ -907,7 +907,8 @@ int arm_pmu_device_probe(struct platform_device *pdev,
}
if (ret) {
- pr_info("failed to probe PMU!\n");
+ pr_info("%s: failed to probe PMU! Error %i\n",
+ node->full_name, ret);
goto out_free;
}
@@ -927,7 +928,8 @@ int arm_pmu_device_probe(struct platform_device *pdev,
out_destroy:
cpu_pmu_destroy(pmu);
out_free:
- pr_info("failed to register PMU devices!\n");
+ pr_info("%s: failed to register PMU devices! Error %i\n",
+ node->full_name, ret);
kfree(pmu);
return ret;
}
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