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Subject[PATCH 7/9] perf/x86: Use update attribute groups for extra format
Date
Using the new pmu::update_attrs attribute group for
extra "format" directory.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
---
arch/x86/events/intel/core.c | 18 +++++++++++++-----
1 file changed, 13 insertions(+), 5 deletions(-)

diff --git a/arch/x86/events/intel/core.c b/arch/x86/events/intel/core.c
index fff73623cf80..524b390a2c26 100644
--- a/arch/x86/events/intel/core.c
+++ b/arch/x86/events/intel/core.c
@@ -4408,6 +4408,12 @@ lbr_is_visible(struct kobject *kobj, struct attribute *attr, int i)
return x86_pmu.lbr_nr ? attr->mode : 0;
}

+static umode_t
+exra_is_visible(struct kobject *kobj, struct attribute *attr, int i)
+{
+ return x86_pmu.version >= 2 ? attr->mode : 0;
+}
+
static struct attribute_group group_events_td = {
.name = "events",
};
@@ -4433,12 +4439,18 @@ static struct attribute_group group_caps_lbr = {
.is_visible = lbr_is_visible,
};

+static struct attribute_group group_format_extra = {
+ .name = "format",
+ .is_visible = exra_is_visible,
+};
+
static const struct attribute_group *attr_update[] = {
&group_events_td,
&group_events_mem,
&group_events_tsx,
&group_caps_gen,
&group_caps_lbr,
+ &group_format_extra,
NULL,
};

@@ -5007,15 +5019,11 @@ __init int intel_pmu_init(void)

snprintf(pmu_name_str, sizeof(pmu_name_str), "%s", name);

- if (version >= 2 && extra_attr) {
- x86_pmu.format_attrs = merge_attr(intel_arch3_formats_attr,
- extra_attr);
- WARN_ON(!x86_pmu.format_attrs);
- }

group_events_td.attrs = td_attr;
group_events_mem.attrs = mem_attr;
group_events_tsx.attrs = tsx_attr;
+ group_format_extra.attrs = extra_attr;

x86_pmu.attr_update = attr_update;

--
2.20.1
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