diff options
| author | Scott Wood <scottwood@freescale.com> | 2007-03-12 14:41:42 -0600 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2007-03-13 21:15:44 +1100 |
| commit | 7c71c04625483c1da91846fd6746057d24ad6be8 (patch) | |
| tree | 7cf4ae6e3e450ae387054fa06c8d7b4b3949d650 /arch/powerpc/boot/flatdevtree.c | |
| parent | ce3edb30ec2b6350c4258e3d52e73b410e2ea12d (diff) | |
[POWERPC] bootwrapper: Add ft_root_node().
Clean up some of the open-coded data structure references by providing a
function to return a pointer to the tree's root node. This is only used
in high-level functions trying to access the root of the tree, not in
low-level code that is actually manipulating the data structure.
Signed-off-by: Scott Wood <scottwood@freescale.com>
Acked-by: Mark A. Greer <mgreer@mvista.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/boot/flatdevtree.c')
| -rw-r--r-- | arch/powerpc/boot/flatdevtree.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/arch/powerpc/boot/flatdevtree.c b/arch/powerpc/boot/flatdevtree.c index c76c194715b2..02823a868b95 100644 --- a/arch/powerpc/boot/flatdevtree.c +++ b/arch/powerpc/boot/flatdevtree.c @@ -29,6 +29,11 @@ #define _ALIGN(x, al) (((x) + (al) - 1) & ~((al) - 1)) +static char *ft_root_node(struct ft_cxt *cxt) +{ + return cxt->rgn[FT_STRUCT].start; +} + /* Routines for keeping node ptrs returned by ft_find_device current */ /* First entry not used b/c it would return 0 and be taken as NULL/error */ static void *ft_node_add(struct ft_cxt *cxt, char *node) @@ -590,7 +595,7 @@ int ft_add_rsvmap(struct ft_cxt *cxt, u64 physaddr, u64 size) void ft_begin_tree(struct ft_cxt *cxt) { - cxt->p = cxt->rgn[FT_STRUCT].start; + cxt->p = ft_root_node(cxt); } void ft_end_tree(struct ft_cxt *cxt) @@ -636,7 +641,7 @@ void *ft_find_device(struct ft_cxt *cxt, const char *srch_path) /* require absolute path */ if (srch_path[0] != '/') return NULL; - node = ft_find_descendent(cxt, cxt->rgn[FT_STRUCT].start, srch_path); + node = ft_find_descendent(cxt, ft_root_node(cxt), srch_path); return ft_node_add(cxt, node); } @@ -717,7 +722,7 @@ void *ft_get_parent(struct ft_cxt *cxt, const void *phandle) return cxt->genealogy[d > 0 ? d - 1 : 0]; /* have to do it the hard way... */ - p = cxt->rgn[FT_STRUCT].start; + p = ft_root_node(cxt); d = 0; while ((p = ft_next(cxt, p, &atom)) != NULL) { switch (atom.tag) { @@ -855,7 +860,7 @@ void *ft_create_node(struct ft_cxt *cxt, const void *parent, const char *path) char *p, *next; int depth = 0; - p = cxt->rgn[FT_STRUCT].start; + p = ft_root_node(cxt); while ((next = ft_next(cxt, p, &atom)) != NULL) { switch (atom.tag) { case OF_DT_BEGIN_NODE: |