openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

of/fdt: remove unused of_scan_flat_dt_by_path 

of_scan_flat_dt_by_path is unused anywhere in the kernel, so remove it.

Signed-off-by: Rob Herring <robh@kernel.org>
Tested-by: Michal Simek <michal.simek@xilinx.com>
Tested-by: Grant Likely <grant.likely@linaro.org>
Tested-by: Stephen Chivers <schivers@csc.com>
This commit is contained in:
Rob Herring 2014-03-29 14:14:17 -05:00
parent 0ee0496de9
commit bba04d965d
2 changed files with 0 additions and 70 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

67
drivers/of/fdt.c
View File

@ -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;

3
include/linux/of_fdt.h
View File

@ -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);