iort_node_map_rid() was designed for both PCI and platform
device, but the rid means requester id is for ITS mappings,
rename iort_node_map_rid() to iort_node_map_id() and update
its argument names to make it more generic.

Signed-off-by: Hanjun Guo <[email protected]>
Cc: Lorenzo Pieralisi <[email protected]>
Cc: Tomasz Nowicki <[email protected]>
---
 drivers/acpi/arm64/iort.c | 30 +++++++++++++++---------------
 1 file changed, 15 insertions(+), 15 deletions(-)

diff --git a/drivers/acpi/arm64/iort.c b/drivers/acpi/arm64/iort.c
index 208eac9..069a690 100644
--- a/drivers/acpi/arm64/iort.c
+++ b/drivers/acpi/arm64/iort.c
@@ -355,11 +355,11 @@ struct acpi_iort_node *iort_node_get_id(struct 
acpi_iort_node *node,
        return NULL;
 }
 
-static struct acpi_iort_node *iort_node_map_rid(struct acpi_iort_node *node,
-                                               u32 rid_in, u32 *rid_out,
-                                               u8 type_mask)
+static struct acpi_iort_node *iort_node_map_id(struct acpi_iort_node *node,
+                                              u32 id_in, u32 *id_out,
+                                              u8 type_mask)
 {
-       u32 rid = rid_in;
+       u32 id = id_in;
 
        /* Parse the ID mapping tree to find specified node type */
        while (node) {
@@ -367,8 +367,8 @@ static struct acpi_iort_node *iort_node_map_rid(struct 
acpi_iort_node *node,
                int i;
 
                if (IORT_TYPE_MASK(node->type) & type_mask) {
-                       if (rid_out)
-                               *rid_out = rid;
+                       if (id_out)
+                               *id_out = id;
                        return node;
                }
 
@@ -385,9 +385,9 @@ static struct acpi_iort_node *iort_node_map_rid(struct 
acpi_iort_node *node,
                        goto fail_map;
                }
 
-               /* Do the RID translation */
+               /* Do the ID translation */
                for (i = 0; i < node->mapping_count; i++, map++) {
-                       if (!iort_id_map(map, node->type, rid, &rid))
+                       if (!iort_id_map(map, node->type, id, &id))
                                break;
                }
 
@@ -399,9 +399,9 @@ static struct acpi_iort_node *iort_node_map_rid(struct 
acpi_iort_node *node,
        }
 
 fail_map:
-       /* Map input RID to output RID unchanged on mapping failure*/
-       if (rid_out)
-               *rid_out = rid_in;
+       /* Map input ID to output ID unchanged on mapping failure */
+       if (id_out)
+               *id_out = id_in;
 
        return NULL;
 }
@@ -439,7 +439,7 @@ u32 iort_msi_map_rid(struct device *dev, u32 req_id)
        if (!node)
                return req_id;
 
-       iort_node_map_rid(node, req_id, &dev_id, IORT_MSI_TYPE);
+       iort_node_map_id(node, req_id, &dev_id, IORT_MSI_TYPE);
        return dev_id;
 }
 
@@ -462,7 +462,7 @@ static int iort_dev_find_its_id(struct device *dev, u32 
req_id,
        if (!node)
                return -ENXIO;
 
-       node = iort_node_map_rid(node, req_id, NULL, IORT_MSI_TYPE);
+       node = iort_node_map_id(node, req_id, NULL, IORT_MSI_TYPE);
        if (!node)
                return -ENXIO;
 
@@ -591,8 +591,8 @@ const struct iommu_ops *iort_iommu_configure(struct device 
*dev)
                if (!node)
                        return NULL;
 
-               parent = iort_node_map_rid(node, rid, &streamid,
-                                          IORT_IOMMU_TYPE);
+               parent = iort_node_map_id(node, rid, &streamid,
+                                         IORT_IOMMU_TYPE);
 
                ops = iort_iommu_xlate(dev, parent, streamid);
 
-- 
1.9.1

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