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Diffstat (limited to 'arch/powerpc/kexec/file_load_64.c')
-rw-r--r--arch/powerpc/kexec/file_load_64.c11
1 files changed, 7 insertions, 4 deletions
diff --git a/arch/powerpc/kexec/file_load_64.c b/arch/powerpc/kexec/file_load_64.c
index af8854f9eae3..52085751f5f4 100644
--- a/arch/powerpc/kexec/file_load_64.c
+++ b/arch/powerpc/kexec/file_load_64.c
@@ -989,10 +989,13 @@ unsigned int kexec_extra_fdt_size_ppc64(struct kimage *image)
* linux,drconf-usable-memory properties. Get an approximate on the
* number of usable memory entries and use for FDT size estimation.
*/
- usm_entries = ((memblock_end_of_DRAM() / drmem_lmb_size()) +
- (2 * (resource_size(&crashk_res) / drmem_lmb_size())));
-
- extra_size = (unsigned int)(usm_entries * sizeof(u64));
+ if (drmem_lmb_size()) {
+ usm_entries = ((memory_hotplug_max() / drmem_lmb_size()) +
+ (2 * (resource_size(&crashk_res) / drmem_lmb_size())));
+ extra_size = (unsigned int)(usm_entries * sizeof(u64));
+ } else {
+ extra_size = 0;
+ }
/*
* Get the number of CPU nodes in the current DT. This allows to