diff options
Diffstat (limited to 'meta-arm/meta-arm-bsp/recipes-kernel/linux/linux-arm64-ack-5.10/tc/0018-perf-arm-cmn-Fix-CPU-hotplug-unregistration.patch')
| -rw-r--r-- | meta-arm/meta-arm-bsp/recipes-kernel/linux/linux-arm64-ack-5.10/tc/0018-perf-arm-cmn-Fix-CPU-hotplug-unregistration.patch | 46 |
1 files changed, 0 insertions, 46 deletions
diff --git a/meta-arm/meta-arm-bsp/recipes-kernel/linux/linux-arm64-ack-5.10/tc/0018-perf-arm-cmn-Fix-CPU-hotplug-unregistration.patch b/meta-arm/meta-arm-bsp/recipes-kernel/linux/linux-arm64-ack-5.10/tc/0018-perf-arm-cmn-Fix-CPU-hotplug-unregistration.patch deleted file mode 100644 index e06fb888bf..0000000000 --- a/meta-arm/meta-arm-bsp/recipes-kernel/linux/linux-arm64-ack-5.10/tc/0018-perf-arm-cmn-Fix-CPU-hotplug-unregistration.patch +++ /dev/null @@ -1,46 +0,0 @@ -From 249304c3517a38863c8e45e63d509d01bd67dead Mon Sep 17 00:00:00 2001 -From: Robin Murphy <robin.murphy@arm.com> -Date: Fri, 3 Dec 2021 11:44:50 +0000 -Subject: [PATCH 02/14] perf/arm-cmn: Fix CPU hotplug unregistration - -Attempting to migrate the PMU context after we've unregistered the PMU -device, or especially if we never successfully registered it in the -first place, is a woefully bad idea. It's also fundamentally pointless -anyway. Make sure to unregister an instance from the hotplug handler -*without* invoking the teardown callback. - -Fixes: 0ba64770a2f2 ("perf: Add Arm CMN-600 PMU driver") -Signed-off-by: Robin Murphy <robin.murphy@arm.com> - -Upstream-Status: Backport [https://lore.kernel.org/r/2c221d745544774e4b07583b65b5d4d94f7e0fe4.1638530442.git.robin.murphy@arm.com] -Signed-off-by: Rupinderjit Singh <rupinderjit.singh@arm.com> ---- - drivers/perf/arm-cmn.c | 5 +++-- - 1 file changed, 3 insertions(+), 2 deletions(-) - -diff --git a/drivers/perf/arm-cmn.c b/drivers/perf/arm-cmn.c -index 38fa6f89d0bc..fe7f3e945481 100644 ---- a/drivers/perf/arm-cmn.c -+++ b/drivers/perf/arm-cmn.c -@@ -1561,7 +1561,8 @@ static int arm_cmn_probe(struct platform_device *pdev) - - err = perf_pmu_register(&cmn->pmu, name, -1); - if (err) -- cpuhp_state_remove_instance(arm_cmn_hp_state, &cmn->cpuhp_node); -+ cpuhp_state_remove_instance_nocalls(arm_cmn_hp_state, &cmn->cpuhp_node); -+ - return err; - } - -@@ -1572,7 +1573,7 @@ static int arm_cmn_remove(struct platform_device *pdev) - writel_relaxed(0, cmn->dtc[0].base + CMN_DT_DTC_CTL); - - perf_pmu_unregister(&cmn->pmu); -- cpuhp_state_remove_instance(arm_cmn_hp_state, &cmn->cpuhp_node); -+ cpuhp_state_remove_instance_nocalls(arm_cmn_hp_state, &cmn->cpuhp_node); - return 0; - } - --- -2.25.1 - |