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Date: Tue, 22 Apr 2014 20:18:10 -0500
From: Rob Herring <robherring2@...il.com>
To: Grant Likely <grant.likely@...aro.org>,
linux-kernel@...r.kernel.org, devicetree@...r.kernel.org
Cc: Rob Herring <robh@...nel.org>
Subject: [PATCH v2 10/21] of/fdt: remove unused of_scan_flat_dt_by_path
From: Rob Herring <robh@...nel.org>
of_scan_flat_dt_by_path is unused anywhere in the kernel, so remove it.
Signed-off-by: Rob Herring <robh@...nel.org>
---
v2: no change
drivers/of/fdt.c | 67 --------------------------------------------------
include/linux/of_fdt.h | 3 ---
2 files changed, 70 deletions(-)
diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c
index 63bdcee..9c85352 100644
--- a/drivers/of/fdt.c
+++ b/drivers/of/fdt.c
@@ -671,73 +671,6 @@ struct fdt_scan_status {
void *data;
};
-/**
- * fdt_scan_node_by_path - iterator for of_scan_flat_dt_by_path function
- */
-static int __init fdt_scan_node_by_path(unsigned long node, const char *uname,
- int depth, void *data)
-{
- struct fdt_scan_status *st = data;
-
- /*
- * if scan at the requested fdt node has been completed,
- * return -ENXIO to abort further scanning
- */
- if (depth <= st->depth)
- return -ENXIO;
-
- /* requested fdt node has been found, so call iterator function */
- if (st->found)
- return st->iterator(node, uname, depth, st->data);
-
- /* check if scanning automata is entering next level of fdt nodes */
- if (depth == st->depth + 1 &&
- strncmp(st->name, uname, st->namelen) == 0 &&
- uname[st->namelen] == 0) {
- st->depth += 1;
- if (st->name[st->namelen] == 0) {
- st->found = 1;
- } else {
- const char *next = st->name + st->namelen + 1;
- st->name = next;
- st->namelen = strcspn(next, "/");
- }
- return 0;
- }
-
- /* scan next fdt node */
- return 0;
-}
-
-/**
- * of_scan_flat_dt_by_path - scan flattened tree blob and call callback on each
- * child of the given path.
- * @path: path to start searching for children
- * @it: callback function
- * @data: context data pointer
- *
- * This function is used to scan the flattened device-tree starting from the
- * node given by path. It is used to extract information (like reserved
- * memory), which is required on ealy boot before we can unflatten the tree.
- */
-int __init of_scan_flat_dt_by_path(const char *path,
- int (*it)(unsigned long node, const char *name, int depth, void *data),
- void *data)
-{
- struct fdt_scan_status st = {path, 0, -1, 0, it, data};
- int ret = 0;
-
- if (initial_boot_params)
- ret = of_scan_flat_dt(fdt_scan_node_by_path, &st);
-
- if (!st.found)
- return -ENOENT;
- else if (ret == -ENXIO) /* scan has been completed */
- return 0;
- else
- return ret;
-}
-
const char * __init of_flat_dt_get_machine_name(void)
{
const char *name;
diff --git a/include/linux/of_fdt.h b/include/linux/of_fdt.h
index d4d0efe..991ec74 100644
--- a/include/linux/of_fdt.h
+++ b/include/linux/of_fdt.h
@@ -93,9 +93,6 @@ extern void *of_get_flat_dt_prop(unsigned long node, const char *name,
extern int of_flat_dt_is_compatible(unsigned long node, const char *name);
extern int of_flat_dt_match(unsigned long node, const char *const *matches);
extern unsigned long of_get_flat_dt_root(void);
-extern int of_scan_flat_dt_by_path(const char *path,
- int (*it)(unsigned long node, const char *name, int depth, void *data),
- void *data);
extern int early_init_dt_scan_chosen(unsigned long node, const char *uname,
int depth, void *data);
--
1.9.1
--
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