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Commit 2766d2ee authored by Zubin Mithra's avatar Zubin Mithra Committed by Ingo Molnar
Browse files

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: default avatarZubin Mithra <zsm@chromium.org>
Reviewed-by: default avatarKees Cook <keescook@chromium.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: acme@kernel.org
Cc: alexander.shishkin@linux.intel.com
Cc: groeck@chromium.org
Link: http://lkml.kernel.org/r/20180810154314.96710-1-zsm@chromium.org


Signed-off-by: default avatarIngo Molnar <mingo@kernel.org>
parent ba6cc93d

arch/x86/events/core.c

+4 −4
Original line number Diff line number Diff line
@@ -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,

};