wic: Honor --size for --source partititions

Instead of simply creating partitions large enough to contain the
contents of a --source partition (and adding a pre-specified amount of
padding), use the --size used in the partition .wks statement.

If --size isn't used, or is smaller than the actual --source size,
retain the current behavior.

(From OE-Core rev: 23b6c5ea4d48cdf731e5202991961a0e4b10ff29)

Signed-off-by: Tom Zanussi <tom.zanussi@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 9 insertions, 1 deletions

diff --git a/scripts/lib/mic/plugins/source/bootimg-pcbios.py b/scripts/lib/mic/plugins/source/bootimg-pcbios.py
index 3cd446f052..fad150f940 100644
--- a/scripts/lib/mic/plugins/source/bootimg-pcbios.py
+++ b/scripts/lib/mic/plugins/source/bootimg-pcbios.py
@@ -154,7 +154,15 @@ class BootimgPcbiosPlugin(SourcePlugin):
         rc, out = exec_cmd(du_cmd)
         blocks = int(out.split()[0])
 
-        blocks += BOOTDD_EXTRA_SPACE
+        extra_blocks = part.get_extra_block_count(blocks)
+
+        if extra_blocks < BOOTDD_EXTRA_SPACE:
+            extra_blocks = BOOTDD_EXTRA_SPACE
+
+        blocks += extra_blocks
+
+        msger.debug("Added %d extra blocks to %s to get to %d total blocks" % \
+                    (extra_blocks, part.mountpoint, blocks))
 
         # Ensure total sectors is an integral number of sectors per
         # track or mcopy will complain. Sectors are 512 bytes, and we