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authorLaura Abbott <lauraa@codeaurora.org>2014-07-15 21:03:35 +0400
committerGrant Likely <grant.likely@linaro.org>2014-07-30 07:26:45 +0400
commit704033cee2e5b3c1c6eaf5bb398e465a9c3667b5 (patch)
tree4b6e7a5ca961e3b8c82fd82295b53cca550a332a /include/linux/of_fdt.h
parent4972a74b888c6b52ca41fae6076786dbbeb746d5 (diff)
downloadlinux-704033cee2e5b3c1c6eaf5bb398e465a9c3667b5.tar.xz
of: Add memory limiting function for flattened devicetrees
Buggy bootloaders may pass bogus memory entries in the devicetree. Add of_fdt_limit_memory to add an upper bound on the number of entries that can be present in the devicetree. Signed-off-by: Laura Abbott <lauraa@codeaurora.org> Tested-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Grant Likely <grant.likely@linaro.org>
Diffstat (limited to 'include/linux/of_fdt.h')
-rw-r--r--include/linux/of_fdt.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/of_fdt.h b/include/linux/of_fdt.h
index ebb2449082fb..0ff360d5b3b3 100644
--- a/include/linux/of_fdt.h
+++ b/include/linux/of_fdt.h
@@ -86,6 +86,7 @@ extern void unflatten_and_copy_device_tree(void);
extern void early_init_devtree(void *);
extern void early_get_first_memblock_info(void *, phys_addr_t *);
extern u64 fdt_translate_address(const void *blob, int node_offset);
+extern void of_fdt_limit_memory(int limit);
#else /* CONFIG_OF_FLATTREE */
static inline void early_init_fdt_scan_reserved_mem(void) {}
static inline const char *of_flat_dt_get_machine_name(void) { return NULL; }