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[POWERPC] Generalise device_node flag interface

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The struct device_node currently has a _flags variable, although
it's only used for one flag - OF_DYNAMIC.  Generalise the flag
accessors so we can use them with other flags in future.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Michael Ellerman 2007-06-19 16:07:58 +10:00 committed by Paul Mackerras
parent 972d17c9db
commit d3b814bb1e
3 changed files with 13 additions and 5 deletions
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2
arch/powerpc/kernel/prom.c
View File

@ -1375,7 +1375,7 @@ static void of_node_release(struct kref *kref)
struct device_node *node = kref_to_device_node(kref); struct device_node *node = kref_to_device_node(kref);
struct property *prop = node->properties; struct property *prop = node->properties;
if (!OF_IS_DYNAMIC(node)) if (!of_node_check_flag(node, OF_DYNAMIC))
return; return;
while (prop) { while (prop) {
struct property *next = prop->next; struct property *next = prop->next;

2
arch/powerpc/platforms/pseries/reconfig.c
View File

@ -123,7 +123,7 @@ static int pSeries_reconfig_add_node(const char *path, struct property *proplist
strcpy(np->full_name, path); strcpy(np->full_name, path);
np->properties = proplist; np->properties = proplist;
OF_MARK_DYNAMIC(np); of_node_set_flag(np, OF_DYNAMIC);
kref_init(&np->kref); kref_init(&np->kref);
np->parent = derive_parent(path); np->parent = derive_parent(path);

14
include/asm-powerpc/prom.h
View File

@ -98,10 +98,18 @@ struct device_node {
extern struct device_node *of_chosen; extern struct device_node *of_chosen;
/* flag descriptions */ /* flag descriptions */
#define OF_DYNAMIC 1 /* node and properties were allocated via kmalloc */ #define OF_DYNAMIC 1 /* node and properties were allocated via kmalloc */
static inline int of_node_check_flag(struct device_node *n, unsigned long flag)
{
return test_bit(flag, &n->_flags);
}
static inline void of_node_set_flag(struct device_node *n, unsigned long flag)
{
set_bit(flag, &n->_flags);
}
#define OF_IS_DYNAMIC(x) test_bit(OF_DYNAMIC, &x->_flags)
#define OF_MARK_DYNAMIC(x) set_bit(OF_DYNAMIC, &x->_flags)
#define HAVE_ARCH_DEVTREE_FIXUPS #define HAVE_ARCH_DEVTREE_FIXUPS