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software node: remove separate handling of references 

Now that all users of references have moved to reference properties,
we can remove separate handling of references.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Dmitry Torokhov 2019-11-07 20:22:24 -08:00 committed by Rafael J. Wysocki
parent 53c24c2932
commit e933bedd45
2 changed files with 17 additions and 43 deletions
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46
drivers/base/swnode.c
View File

@ -479,9 +479,8 @@ software_node_get_reference_args(const struct fwnode_handle *fwnode,
struct fwnode_reference_args *args)
{
struct swnode *swnode = to_swnode(fwnode);
const struct software_node_reference *ref;
const struct software_node_ref_args *ref_array;
const struct software_node_ref_args *ref_args;
const struct software_node_ref_args *ref;
const struct property_entry *prop;
struct fwnode_handle *refnode;
u32 nargs_prop_val;
@ -492,37 +491,26 @@ software_node_get_reference_args(const struct fwnode_handle *fwnode,
return -ENOENT;
prop = property_entry_get(swnode->node->properties, propname);
if (prop) {
if (prop->type != DEV_PROP_REF)
return -EINVAL;
if (!prop)
return -ENOENT;
/*
* We expect that references are never stored inline, even
* single ones, as they are too big.
*/
if (prop->is_inline)
return -EINVAL;
if (prop->type != DEV_PROP_REF)
return -EINVAL;
if (index * sizeof(*ref_args) >= prop->length)
return -ENOENT;
/*
* We expect that references are never stored inline, even
* single ones, as they are too big.
*/
if (prop->is_inline)
return -EINVAL;
ref_array = prop->pointer;
ref_args = &ref_array[index];
} else {
if (!swnode->node->references)
return -ENOENT;
if (index * sizeof(*ref) >= prop->length)
return -ENOENT;
for (ref = swnode->node->references; ref->name; ref++)
if (!strcmp(ref->name, propname))
break;
ref_array = prop->pointer;
ref = &ref_array[index];
if (!ref->name || index > (ref->nrefs - 1))
return -ENOENT;
ref_args = &ref->refs[index];
}
refnode = software_node_fwnode(ref_args->node);
refnode = software_node_fwnode(ref->node);
if (!refnode)
return -ENOENT;
@ -543,7 +531,7 @@ software_node_get_reference_args(const struct fwnode_handle *fwnode,
args->nargs = nargs;
for (i = 0; i < nargs; i++)
args->args[i] = ref_args->args[i];
args->args[i] = ref->args[i];
return 0;
}

14
include/linux/property.h
View File

@ -416,30 +416,16 @@ int fwnode_graph_parse_endpoint(const struct fwnode_handle *fwnode,
/* -------------------------------------------------------------------------- */
/* Software fwnode support - when HW description is incomplete or missing */
/**
* struct software_node_reference - Named software node reference property
* @name: Name of the property
* @nrefs: Number of elements in @refs array
* @refs: Array of references with optional arguments
*/
struct software_node_reference {
const char *name;
unsigned int nrefs;
const struct software_node_ref_args *refs;
};
/**
* struct software_node - Software node description
* @name: Name of the software node
* @parent: Parent of the software node
* @properties: Array of device properties
* @references: Array of software node reference properties
*/
struct software_node {
const char *name;
const struct software_node *parent;
const struct property_entry *properties;
const struct software_node_reference *references;
};
bool is_software_node(const struct fwnode_handle *fwnode);