coreboot memrange: Two changes for zero size or empty memrange
1) Add check for zero size in memrange.
2) Add public memrange_init_empty function to allow initializing only the
memrange structure without filling in device resources
BUG=None
BRANCH=None
TEST=Compiles and runs succesfully for rush MMU memranges.
Original-Change-Id: I8e4d864cbc9a770cd208f8a9f83f509dc7ace894
Original-Signed-off-by: Furquan Shaikh <furquan@google.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/208957
Original-Tested-by: Furquan Shaikh <furquan@chromium.org>
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Original-Commit-Queue: Furquan Shaikh <furquan@chromium.org>
(cherry picked from commit 5c42301c2a51a1a2a29ef58012f210d03bd37f94)
Signed-off-by: Marc Jones <marc.jones@se-eng.com>
Change-Id: I8d63abb15efda74270ef6fa3c0df55c05659595d
Reviewed-on: http://review.coreboot.org/8597
Tested-by: build bot (Jenkins)
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
diff --git a/src/include/memrange.h b/src/include/memrange.h
index ba85bef..048c287 100644
--- a/src/include/memrange.h
+++ b/src/include/memrange.h
@@ -75,6 +75,9 @@
#define memranges_each_entry(r, ranges) \
for (r = (ranges)->entries; r != NULL; r = r->next)
+/* Initialize memranges structure */
+void memranges_init_empty(struct memranges *ranges);
+
/* Initialize and fill a memranges structure according to the
* mask and match type for all memory resources. Tag each entry with the
* specified type. */