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| author | Grant Likely <grant.likely@secretlab.ca> | 2010-04-14 03:12:26 +0400 |
|---|---|---|
| committer | Grant Likely <grant.likely@secretlab.ca> | 2010-04-29 04:20:29 +0400 |
| commit | 8bfe9b5c3a684fe39eb58a65e466c103d1c32c9a (patch) | |
| tree | eb7709a314b7ec5ba3eef1dcd60018f41d512a45 /include | |
| parent | cf32eb89cb4e674f88e4af5025839d85d02485c6 (diff) | |
| download | linux-8bfe9b5c3a684fe39eb58a65e466c103d1c32c9a.tar.xz | |
of/flattree: Make unflatten_device_tree() safe to call from any arch
This patch makes unflatten_device_tree() safe to call from any arch
setup code with the following changes:
- Make sure initial_boot_params actually points to a device tree blob
before unflattening
- Make sure the initial_boot_params->magic field is correct
- If CONFIG_OF_FLATTREE is not set, then make unflatten_device_tree()
an empty static inline function.
This patch also adds some additional debug output to the top of
unflatten_device_tree().
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/of_fdt.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/of_fdt.h b/include/linux/of_fdt.h index f0fdd1f43688..71e1a916d3fa 100644 --- a/include/linux/of_fdt.h +++ b/include/linux/of_fdt.h @@ -99,6 +99,8 @@ extern int early_init_dt_scan_root(unsigned long node, const char *uname, /* Other Prototypes */ extern void unflatten_device_tree(void); extern void early_init_devtree(void *); +#else /* CONFIG_OF_FLATTREE */ +static inline void unflatten_device_tree(void) {} #endif /* CONFIG_OF_FLATTREE */ #endif /* __ASSEMBLY__ */ |