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Date: Fri, 30 Nov 2012 09:15:24 -0800
From: Randy Dunlap <rdunlap@...otime.net>
To: Grant Likely <grant.likely@...retlab.ca>
CC: linux-kernel@...r.kernel.org, devicetree-discuss@...ts.ozlabs.org,
Ville Syrjala <syrjala@....fi>
Subject: Re: [PATCH] Fix build when CONFIG_W1_MASTER_GPIO=m b exporting "allnodes"
On 11/30/2012 02:04 AM, Grant Likely wrote:
> From: Randy Dunlap <rdunlap@...radead.org>
>
> ERROR: "allnodes" [drivers/w1/masters/w1-gpio.ko] undefined!
>
> Signed-off-by: Randy Dunlap <rdunlap@...radead.org>
> [grant.likely: allnodes is too generic; rename to of_allnodes]
> Signed-off-by: Grant Likely <grant.likely@...retlab.ca>
> Cc: Ville Syrjala <syrjala@....fi>
That builds. Thanks.
(using xenotime.net for email temporarily)
> ---
> arch/arm/mach-vexpress/v2m.c | 2 +-
> drivers/of/base.c | 29 +++++++++++++++--------------
> drivers/of/fdt.c | 2 +-
> drivers/of/pdt.c | 12 ++++++------
> include/linux/of.h | 4 ++--
> 5 files changed, 25 insertions(+), 24 deletions(-)
>
> diff --git a/arch/arm/mach-vexpress/v2m.c b/arch/arm/mach-vexpress/v2m.c
> index 560e0df..359f782 100644
> --- a/arch/arm/mach-vexpress/v2m.c
> +++ b/arch/arm/mach-vexpress/v2m.c
> @@ -589,7 +589,7 @@ void __init v2m_dt_init_early(void)
> return;
>
> /* Confirm board type against DT property, if available */
> - if (of_property_read_u32(allnodes, "arm,hbi", &dt_hbi) == 0) {
> + if (of_property_read_u32(of_allnodes, "arm,hbi", &dt_hbi) == 0) {
> int site = v2m_get_master_site();
> u32 id = readl(v2m_sysreg_base + (site == SYS_CFG_SITE_DB2 ?
> V2M_SYS_PROCID1 : V2M_SYS_PROCID0));
> diff --git a/drivers/of/base.c b/drivers/of/base.c
> index c372411..538e3cf 100644
> --- a/drivers/of/base.c
> +++ b/drivers/of/base.c
> @@ -45,7 +45,8 @@ struct alias_prop {
>
> static LIST_HEAD(aliases_lookup);
>
> -struct device_node *allnodes;
> +struct device_node *of_allnodes;
> +EXPORT_SYMBOL(of_allnodes);
> struct device_node *of_chosen;
> struct device_node *of_aliases;
>
> @@ -199,7 +200,7 @@ struct device_node *of_find_all_nodes(struct device_node *prev)
> struct device_node *np;
>
> read_lock(&devtree_lock);
> - np = prev ? prev->allnext : allnodes;
> + np = prev ? prev->allnext : of_allnodes;
> for (; np != NULL; np = np->allnext)
> if (of_node_get(np))
> break;
> @@ -422,7 +423,7 @@ EXPORT_SYMBOL(of_get_child_by_name);
> */
> struct device_node *of_find_node_by_path(const char *path)
> {
> - struct device_node *np = allnodes;
> + struct device_node *np = of_allnodes;
>
> read_lock(&devtree_lock);
> for (; np; np = np->allnext) {
> @@ -452,7 +453,7 @@ struct device_node *of_find_node_by_name(struct device_node *from,
> struct device_node *np;
>
> read_lock(&devtree_lock);
> - np = from ? from->allnext : allnodes;
> + np = from ? from->allnext : of_allnodes;
> for (; np; np = np->allnext)
> if (np->name && (of_node_cmp(np->name, name) == 0)
> && of_node_get(np))
> @@ -481,7 +482,7 @@ struct device_node *of_find_node_by_type(struct device_node *from,
> struct device_node *np;
>
> read_lock(&devtree_lock);
> - np = from ? from->allnext : allnodes;
> + np = from ? from->allnext : of_allnodes;
> for (; np; np = np->allnext)
> if (np->type && (of_node_cmp(np->type, type) == 0)
> && of_node_get(np))
> @@ -512,7 +513,7 @@ struct device_node *of_find_compatible_node(struct device_node *from,
> struct device_node *np;
>
> read_lock(&devtree_lock);
> - np = from ? from->allnext : allnodes;
> + np = from ? from->allnext : of_allnodes;
> for (; np; np = np->allnext) {
> if (type
> && !(np->type && (of_node_cmp(np->type, type) == 0)))
> @@ -545,7 +546,7 @@ struct device_node *of_find_node_with_property(struct device_node *from,
> struct property *pp;
>
> read_lock(&devtree_lock);
> - np = from ? from->allnext : allnodes;
> + np = from ? from->allnext : of_allnodes;
> for (; np; np = np->allnext) {
> for (pp = np->properties; pp; pp = pp->next) {
> if (of_prop_cmp(pp->name, prop_name) == 0) {
> @@ -616,7 +617,7 @@ struct device_node *of_find_matching_node_and_match(struct device_node *from,
> *match = NULL;
>
> read_lock(&devtree_lock);
> - np = from ? from->allnext : allnodes;
> + np = from ? from->allnext : of_allnodes;
> for (; np; np = np->allnext) {
> if (of_match_node(matches, np) && of_node_get(np)) {
> if (match)
> @@ -669,7 +670,7 @@ struct device_node *of_find_node_by_phandle(phandle handle)
> struct device_node *np;
>
> read_lock(&devtree_lock);
> - for (np = allnodes; np; np = np->allnext)
> + for (np = of_allnodes; np; np = np->allnext)
> if (np->phandle == handle)
> break;
> of_node_get(np);
> @@ -1254,9 +1255,9 @@ void of_attach_node(struct device_node *np)
>
> write_lock_irqsave(&devtree_lock, flags);
> np->sibling = np->parent->child;
> - np->allnext = allnodes;
> + np->allnext = of_allnodes;
> np->parent->child = np;
> - allnodes = np;
> + of_allnodes = np;
> write_unlock_irqrestore(&devtree_lock, flags);
> }
>
> @@ -1277,11 +1278,11 @@ void of_detach_node(struct device_node *np)
> if (!parent)
> goto out_unlock;
>
> - if (allnodes == np)
> - allnodes = np->allnext;
> + if (of_allnodes == np)
> + of_allnodes = np->allnext;
> else {
> struct device_node *prev;
> - for (prev = allnodes;
> + for (prev = of_allnodes;
> prev->allnext != np;
> prev = prev->allnext)
> ;
> diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c
> index e36ff40..a65c39c 100644
> --- a/drivers/of/fdt.c
> +++ b/drivers/of/fdt.c
> @@ -712,7 +712,7 @@ int __init early_init_dt_scan_chosen(unsigned long node, const char *uname,
> */
> void __init unflatten_device_tree(void)
> {
> - __unflatten_device_tree(initial_boot_params, &allnodes,
> + __unflatten_device_tree(initial_boot_params, &of_allnodes,
> early_init_dt_alloc_memory_arch);
>
> /* Get pointer to "/chosen" and "/aliasas" nodes for use everywhere */
> diff --git a/drivers/of/pdt.c b/drivers/of/pdt.c
> index 07cc1d6..37b56fd 100644
> --- a/drivers/of/pdt.c
> +++ b/drivers/of/pdt.c
> @@ -241,15 +241,15 @@ void __init of_pdt_build_devicetree(phandle root_node, struct of_pdt_ops *ops)
> BUG_ON(!ops);
> of_pdt_prom_ops = ops;
>
> - allnodes = of_pdt_create_node(root_node, NULL);
> + of_allnodes = of_pdt_create_node(root_node, NULL);
> #if defined(CONFIG_SPARC)
> - allnodes->path_component_name = "";
> + of_allnodes->path_component_name = "";
> #endif
> - allnodes->full_name = "/";
> + of_allnodes->full_name = "/";
>
> - nextp = &allnodes->allnext;
> - allnodes->child = of_pdt_build_tree(allnodes,
> - of_pdt_prom_ops->getchild(allnodes->phandle), &nextp);
> + nextp = &of_allnodes->allnext;
> + of_allnodes->child = of_pdt_build_tree(of_allnodes,
> + of_pdt_prom_ops->getchild(of_allnodes->phandle), &nextp);
>
> /* Get pointer to "/chosen" and "/aliasas" nodes for use everywhere */
> of_alias_scan(kernel_tree_alloc);
> diff --git a/include/linux/of.h b/include/linux/of.h
> index 7337dc1..60053bd 100644
> --- a/include/linux/of.h
> +++ b/include/linux/of.h
> @@ -88,14 +88,14 @@ static inline void of_node_put(struct device_node *node) { }
> #ifdef CONFIG_OF
>
> /* Pointer for first entry in chain of all nodes. */
> -extern struct device_node *allnodes;
> +extern struct device_node *of_allnodes;
> extern struct device_node *of_chosen;
> extern struct device_node *of_aliases;
> extern rwlock_t devtree_lock;
>
> static inline bool of_have_populated_dt(void)
> {
> - return allnodes != NULL;
> + return of_allnodes != NULL;
> }
>
> static inline bool of_node_is_root(const struct device_node *node)
--
~Randy
--
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