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cxl/region: Delete 'region' attribute from root decoders

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For switch and endpoint decoders the relationship of decoders to regions
is 1:1. However, for root decoders the relationship is 1:N. Also,
regions are already children of root decoders, so the 1:N relationship
is observed by walking the following glob:

    /sys/bus/cxl/devices/$decoder/region*

Hide the vestigial 'region' attribute for root decoders.

Reviewed-by: Vishal Verma <vishal.l.verma@intel.com>
Reviewed-by: Alison Schofield <alison.schofield@intel.com>
Link: https://lore.kernel.org/r/165853776328.2430596.4647259305040072751.stgit@dwillia2-xfh.jf.intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
This commit is contained in:
Dan Williams 2022-07-22 17:56:03 -07:00
parent a53c28b6ae
commit 2bde6dbebc
1 changed files with 2 additions and 1 deletions
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3
drivers/cxl/core/port.c
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@ -290,7 +290,6 @@ static struct attribute *cxl_decoder_base_attrs[] = {
&dev_attr_locked.attr, &dev_attr_locked.attr,
&dev_attr_interleave_granularity.attr, &dev_attr_interleave_granularity.attr,
&dev_attr_interleave_ways.attr, &dev_attr_interleave_ways.attr,
SET_CXL_REGION_ATTR(region)
NULL, NULL,
}; };
@ -345,6 +344,7 @@ static const struct attribute_group *cxl_decoder_root_attribute_groups[] = {
static struct attribute *cxl_decoder_switch_attrs[] = { static struct attribute *cxl_decoder_switch_attrs[] = {
&dev_attr_target_type.attr, &dev_attr_target_type.attr,
&dev_attr_target_list.attr, &dev_attr_target_list.attr,
SET_CXL_REGION_ATTR(region)
NULL, NULL,
}; };
@ -364,6 +364,7 @@ static struct attribute *cxl_decoder_endpoint_attrs[] = {
&dev_attr_mode.attr, &dev_attr_mode.attr,
&dev_attr_dpa_size.attr, &dev_attr_dpa_size.attr,
&dev_attr_dpa_resource.attr, &dev_attr_dpa_resource.attr,
SET_CXL_REGION_ATTR(region)
NULL, NULL,
}; };