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stm class: Use memcat_p()

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Instead of a local copy, use the memcat_p() helper to merge policy
node attributes.

Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Tested-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Alexander Shishkin 2018-10-05 15:43:06 +03:00 committed by Greg Kroah-Hartman
parent ce76d938dd
commit a23bbec205
1 changed files with 1 additions and 28 deletions
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29
drivers/hwtracing/stm/policy.c
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@ -202,33 +202,6 @@ static struct configfs_attribute *stp_policy_node_attrs[] = {
static const struct config_item_type stp_policy_type;
static const struct config_item_type stp_policy_node_type;
/* lifted from arch/x86/events/core.c */
static struct configfs_attribute **merge_attr(struct configfs_attribute **a, struct configfs_attribute **b)
{
struct configfs_attribute **new;
int j, i;
for (j = 0; a[j]; j++)
;
for (i = 0; b[i]; i++)
j++;
j++;
new = kmalloc_array(j, sizeof(struct configfs_attribute *),
GFP_KERNEL);
if (!new)
return NULL;
j = 0;
for (i = 0; a[i]; i++)
new[j++] = a[i];
for (i = 0; b[i]; i++)
new[j++] = b[i];
new[j] = NULL;
return new;
}
const struct config_item_type *
get_policy_node_type(struct configfs_attribute **attrs)
{
@ -240,7 +213,7 @@ get_policy_node_type(struct configfs_attribute **attrs)
if (!type)
return NULL;
merged = merge_attr(stp_policy_node_attrs, attrs);
merged = memcat_p(stp_policy_node_attrs, attrs);
if (!merged) {
kfree(type);
return NULL;