From: Ian Rogers <irogers@google.com>
To: Kees Cook <kees@kernel.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Miguel Ojeda <ojeda@kernel.org>,
"Rafael J . Wysocki" <rafael@kernel.org>,
Danilo Krummrich <dakr@kernel.org>
Cc: "Nathan Chancellor" <nathan@kernel.org>,
"Nick Desaulniers" <ndesaulniers@google.com>,
"Miguel Ojeda" <miguel.ojeda.sandonis@gmail.com>,
"Christian König" <christian.koenig@amd.com>,
"Zhihao Cheng" <chengzhihao1@huawei.com>,
"Zhongqiu Han" <zhongqiu.han@oss.qualcomm.com>,
"Sumanth Korikkar" <sumanthk@linux.ibm.com>,
"Bill Wendling" <morbo@google.com>,
"Justin Stitt" <justinstitt@google.com>,
driver-core@lists.linux.dev, llvm@lists.linux.dev,
linux-hardening@vger.kernel.org, linux-fsdevel@vger.kernel.org,
linux-doc@vger.kernel.org, linux-acpi@vger.kernel.org,
linux-pm@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
linux-sh@vger.kernel.org, linux-s390@vger.kernel.org,
gfs2@lists.linux.dev, xen-devel@lists.xenproject.org,
linux-mtd@lists.infradead.org, amd-gfx@lists.freedesktop.org,
dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org,
"Ian Rogers" <irogers@google.com>,
"Viresh Kumar" <viresh.kumar@linaro.org>
Subject: [PATCH v2 4/9] cpufreq: governor: Initialize kobj_type release callback statically
Date: Tue, 27 Oct 2026 15:38:39 -0700 [thread overview]
Message-ID: <20261027223847.652884-5-irogers@google.com> (raw)
In-Reply-To: <20261027223847.652884-1-irogers@google.com>
Export cpufreq_dbs_data_release() and set .kobj_type.release statically
in the ondemand and conservative governors so their gov_attr_set
kobjects have a valid release callback statically initialized, matching
cpufreq_governor_dbs. Remove the redundant runtime assignment in
cpufreq_dbs_governor_init().
This prepares for annotating struct kobj_type::release with
__must_init.
Signed-off-by: Ian Rogers <irogers@google.com>
---
drivers/cpufreq/cpufreq_conservative.c | 5 ++++-
drivers/cpufreq/cpufreq_governor.c | 4 ++--
drivers/cpufreq/cpufreq_governor.h | 1 +
drivers/cpufreq/cpufreq_ondemand.c | 5 ++++-
4 files changed, 11 insertions(+), 4 deletions(-)
diff --git a/drivers/cpufreq/cpufreq_conservative.c b/drivers/cpufreq/cpufreq_conservative.c
index 02bfd46543e9..146a2353b1a2 100644
--- a/drivers/cpufreq/cpufreq_conservative.c
+++ b/drivers/cpufreq/cpufreq_conservative.c
@@ -318,7 +318,10 @@ static void cs_limits(struct cpufreq_policy *policy)
static struct dbs_governor cs_governor = {
.gov = CPUFREQ_DBS_GOVERNOR_INITIALIZER("conservative"),
- .kobj_type = { .default_groups = cs_groups },
+ .kobj_type = {
+ .release = cpufreq_dbs_data_release,
+ .default_groups = cs_groups,
+ },
.gov_dbs_update = cs_dbs_update,
.alloc = cs_alloc,
.free = cs_free,
diff --git a/drivers/cpufreq/cpufreq_governor.c b/drivers/cpufreq/cpufreq_governor.c
index f3bd3dbe7c41..f8b5aca09b6b 100644
--- a/drivers/cpufreq/cpufreq_governor.c
+++ b/drivers/cpufreq/cpufreq_governor.c
@@ -419,7 +419,7 @@ static void free_policy_dbs_info(struct policy_dbs_info *policy_dbs,
gov->free(policy_dbs);
}
-static void cpufreq_dbs_data_release(struct kobject *kobj)
+void cpufreq_dbs_data_release(struct kobject *kobj)
{
struct dbs_data *dbs_data = to_dbs_data(to_gov_attr_set(kobj));
struct dbs_governor *gov = dbs_data->gov;
@@ -427,6 +427,7 @@ static void cpufreq_dbs_data_release(struct kobject *kobj)
gov->exit(dbs_data);
kfree(dbs_data);
}
+EXPORT_SYMBOL_GPL(cpufreq_dbs_data_release);
int cpufreq_dbs_governor_init(struct cpufreq_policy *policy)
{
@@ -488,7 +489,6 @@ int cpufreq_dbs_governor_init(struct cpufreq_policy *policy)
policy->governor_data = policy_dbs;
gov->kobj_type.sysfs_ops = &governor_sysfs_ops;
- gov->kobj_type.release = cpufreq_dbs_data_release;
ret = kobject_init_and_add(&dbs_data->attr_set.kobj, &gov->kobj_type,
get_governor_parent_kobj(policy),
"%s", gov->gov.name);
diff --git a/drivers/cpufreq/cpufreq_governor.h b/drivers/cpufreq/cpufreq_governor.h
index 806d8fb4dff1..1026712bb79b 100644
--- a/drivers/cpufreq/cpufreq_governor.h
+++ b/drivers/cpufreq/cpufreq_governor.h
@@ -150,6 +150,7 @@ static inline struct dbs_governor *dbs_governor_of(struct cpufreq_policy *policy
}
/* Governor callback routines */
+void cpufreq_dbs_data_release(struct kobject *kobj);
int cpufreq_dbs_governor_init(struct cpufreq_policy *policy);
void cpufreq_dbs_governor_exit(struct cpufreq_policy *policy);
int cpufreq_dbs_governor_start(struct cpufreq_policy *policy);
diff --git a/drivers/cpufreq/cpufreq_ondemand.c b/drivers/cpufreq/cpufreq_ondemand.c
index 9942dbb38dae..7386d043c665 100644
--- a/drivers/cpufreq/cpufreq_ondemand.c
+++ b/drivers/cpufreq/cpufreq_ondemand.c
@@ -374,7 +374,10 @@ static struct od_ops od_ops = {
static struct dbs_governor od_dbs_gov = {
.gov = CPUFREQ_DBS_GOVERNOR_INITIALIZER("ondemand"),
- .kobj_type = { .default_groups = od_groups },
+ .kobj_type = {
+ .release = cpufreq_dbs_data_release,
+ .default_groups = od_groups,
+ },
.gov_dbs_update = od_dbs_update,
.alloc = od_alloc,
.free = od_free,
--
2.56.0.313.g2479322e68-goog
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http://lists.infradead.org/mailman/listinfo/linux-mtd/
next prev parent reply other threads:[~2026-10-27 22:39 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-27 22:38 [PATCH v2 0/9] Add __must_init and require explicit kobj_type::release Ian Rogers
2026-10-27 22:38 ` [PATCH v2 1/9] Compiler Attributes: Add __must_init macro Ian Rogers
2026-10-27 22:38 ` [PATCH v2 2/9] powerpc/secvar: Add missing kobject release callback to secvar_ktype Ian Rogers
2026-10-27 22:38 ` [PATCH v2 3/9] sh: sq: Add missing kobject release callback to ktype_percpu_entry Ian Rogers
2026-10-27 22:38 ` Ian Rogers [this message]
2026-10-27 22:38 ` [PATCH v2 5/9] dlm: Free dlm_ls in kobject release callback Ian Rogers
2026-10-27 22:38 ` [PATCH v2 6/9] xen/sys-hypervisor: Add release callback to hyp_sysfs_kobj_type Ian Rogers
2026-10-27 22:38 ` [PATCH v2 7/9] ubifs: sysfs: Use kset_create_and_add() for ubifs_kset Ian Rogers
2026-10-27 22:38 ` [PATCH v2 8/9] drm/amdkfd: Free queue in procfs_queue_type kobject release callback Ian Rogers
2026-10-27 23:15 ` Felix Kuehling
2026-10-27 22:38 ` [PATCH v2 9/9] kobject: Require explicit initialization of struct kobj_type::release Ian Rogers
2026-10-27 22:56 ` sashiko-bot
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