Since, according to a recent devicetree ML posting by Rob Herring,
the node "/chosen@0" is most likely for real Open Firmware and does
not apply to DTSpec, remove all remaining tests and references for
that node, of which there are very few left:
arch/microblaze/kernel/prom.c | 3 +--
arch/mips/generic/yamon-dt.c | 4 ----
arch/powerpc/boot/oflib.c | 7 ++-----
drivers/of/base.c | 2 --
drivers/of/fdt.c | 5 +----
5 files changed, 4 insertions(+), 17 deletions(-)
This should be innocuous as, in all of the three arch/ files above,
there is a test for "chosen" immediately before the test for
"chosen@0", so nothing should change.
Signed-off-by: Robert P. J. Day <rpjday@xxxxxxxxxxxxxx>
---
if this patch is premature, then just ignore it, thanks.
diff --git a/arch/microblaze/kernel/prom.c b/arch/microblaze/kernel/prom.c
index 68f0999..c81bfd7 100644
--- a/arch/microblaze/kernel/prom.c
+++ b/arch/microblaze/kernel/prom.c
@@ -53,8 +53,7 @@ static int __init early_init_dt_scan_chosen_serial(unsigned long node,
pr_debug("%s: depth: %d, uname: %s\n", __func__, depth, uname);
- if (depth == 1 && (strcmp(uname, "chosen") == 0 ||
- strcmp(uname, "chosen@0") == 0)) {
+ if (depth == 1 && (strcmp(uname, "chosen") == 0)) {
p = of_get_flat_dt_prop(node, "linux,stdout-path", &l);
if (p != NULL && l > 0)
stdout = p; /* store pointer to stdout-path */
diff --git a/arch/mips/generic/yamon-dt.c b/arch/mips/generic/yamon-dt.c
index 6077bca..3a241b2 100644
--- a/arch/mips/generic/yamon-dt.c
+++ b/arch/mips/generic/yamon-dt.c
@@ -28,8 +28,6 @@ __init int yamon_dt_append_cmdline(void *fdt)
/* find or add chosen node */
chosen_off = fdt_path_offset(fdt, "/chosen");
if (chosen_off == -FDT_ERR_NOTFOUND)
- chosen_off = fdt_path_offset(fdt, "/chosen@0");
- if (chosen_off == -FDT_ERR_NOTFOUND)
chosen_off = fdt_add_subnode(fdt, 0, "chosen");
if (chosen_off < 0) {
pr_err("Unable to find or add DT chosen node: %d\n",
@@ -221,8 +219,6 @@ __init int yamon_dt_serial_config(void *fdt)
/* find or add chosen node */
chosen_off = fdt_path_offset(fdt, "/chosen");
if (chosen_off == -FDT_ERR_NOTFOUND)
- chosen_off = fdt_path_offset(fdt, "/chosen@0");
- if (chosen_off == -FDT_ERR_NOTFOUND)
chosen_off = fdt_add_subnode(fdt, 0, "chosen");
if (chosen_off < 0) {
pr_err("Unable to find or add DT chosen node: %d\n",
diff --git a/arch/powerpc/boot/oflib.c b/arch/powerpc/boot/oflib.c
index 46c98a4..a01471f 100644
--- a/arch/powerpc/boot/oflib.c
+++ b/arch/powerpc/boot/oflib.c
@@ -131,11 +131,8 @@ static int check_of_version(void)
return 0;
chosen = of_finddevice("/chosen");
if (chosen == (phandle) -1) {
- chosen = of_finddevice("/chosen@0");
- if (chosen == (phandle) -1) {
- printf("no chosen\n");
- return 0;
- }
+ printf("no chosen\n");
+ return 0;
}
if (of_getprop(chosen, "mmu", &chosen_mmu, sizeof(chosen_mmu)) <= 0) {
printf("no mmu\n");
diff --git a/drivers/of/base.c b/drivers/of/base.c
index 686628d..e0f636d 100644
--- a/drivers/of/base.c
+++ b/drivers/of/base.c
@@ -1659,8 +1659,6 @@ void of_alias_scan(void * (*dt_alloc)(u64 size, u64 align))
of_aliases = of_find_node_by_path("/aliases");
of_chosen = of_find_node_by_path("/chosen");
- if (of_chosen == NULL)
- of_chosen = of_find_node_by_path("/chosen@0");
if (of_chosen) {
/* linux,stdout-path and /aliases/stdout are for legacy compatibility */
diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c
index ce30c9a..0b0a709 100644
--- a/drivers/of/fdt.c
+++ b/drivers/of/fdt.c
@@ -980,8 +980,6 @@ int __init early_init_dt_scan_chosen_stdout(void)
offset = fdt_path_offset(fdt, "/chosen");
if (offset < 0)
- offset = fdt_path_offset(fdt, "/chosen@0");
- if (offset < 0)
return -ENOENT;
p = fdt_getprop(fdt, offset, "stdout-path", &l);
@@ -1117,8 +1115,7 @@ int __init early_init_dt_scan_chosen(unsigned long node, const char *uname,
pr_debug("search \"chosen\", depth: %d, uname: %s\n", depth, uname);
- if (depth != 1 || !data ||
- (strcmp(uname, "chosen") != 0 && strcmp(uname, "chosen@0") != 0))
+ if (depth != 1 || !data || (strcmp(uname, "chosen") != 0))
return 0;
early_init_dt_check_for_initrd(node);
--
========================================================================
Robert P. J. Day Ottawa, Ontario, CANADA
http://crashcourse.ca
Twitter: http://twitter.com/rpjday
LinkedIn: http://ca.linkedin.com/in/rpjday
========================================================================
