Commit-ID: 2766d2ee960c52adc415931130dd6910158dd04d
Gitweb: https://git.kernel.org/tip/2766d2ee960c52adc415931130dd6910158dd04d
Author: Zubin Mithra <zsm@xxxxxxxxxxxx>
AuthorDate: Fri, 10 Aug 2018 08:43:14 -0700
Committer: Ingo Molnar <mingo@xxxxxxxxxx>
CommitDate: Mon, 10 Sep 2018 14:55:36 +0200
perf/x86: Add __ro_after_init annotations
x86_pmu_{format,events,attr,caps}_group is written to in
init_hw_perf_events and not modified after. This makes them suitable
candidates for annotating as __ro_after_init.
Signed-off-by: Zubin Mithra <zsm@xxxxxxxxxxxx>
Reviewed-by: Kees Cook <keescook@xxxxxxxxxxxx>
Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: acme@xxxxxxxxxx
Cc: alexander.shishkin@xxxxxxxxxxxxxxx
Cc: groeck@xxxxxxxxxxxx
Link: http://lkml.kernel.org/r/20180810154314.96710-1-zsm@xxxxxxxxxxxx
Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx>
---
arch/x86/events/core.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/arch/x86/events/core.c b/arch/x86/events/core.c
index dfb2f7c0d019..7a6fb9b2bec5 100644
--- a/arch/x86/events/core.c
+++ b/arch/x86/events/core.c
@@ -1584,7 +1584,7 @@ static void __init pmu_check_apic(void)
}
-static struct attribute_group x86_pmu_format_group = {
+static struct attribute_group x86_pmu_format_group __ro_after_init = {
.name = "format",
.attrs = NULL,
};
@@ -1715,7 +1715,7 @@ static struct attribute *events_attr[] = {
NULL,
};
-static struct attribute_group x86_pmu_events_group = {
+static struct attribute_group x86_pmu_events_group __ro_after_init = {
.name = "events",
.attrs = events_attr,
};
@@ -2230,7 +2230,7 @@ static struct attribute *x86_pmu_attrs[] = {
NULL,
};
-static struct attribute_group x86_pmu_attr_group = {
+static struct attribute_group x86_pmu_attr_group __ro_after_init = {
.attrs = x86_pmu_attrs,
};
@@ -2248,7 +2248,7 @@ static struct attribute *x86_pmu_caps_attrs[] = {
NULL
};
-static struct attribute_group x86_pmu_caps_group = {
+static struct attribute_group x86_pmu_caps_group __ro_after_init = {
.name = "caps",
.attrs = x86_pmu_caps_attrs,
};
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