New patch to review for coreboot: fmap: Add support for checking existence of region

[Furquan Shaikh]

Furquan Shaikh ([e-mail]) just uploaded a new patch set to gerrit, which you can find at https://review.coreboot.org/17238

-gerrit

commit d9dc0ec5f16f8fc8bdb40461edc2e5967027ecd9
Author: Furquan Shaikh 
Date:   Sat Nov 5 23:37:11 2016 -0700

fmap: Add support for checking existence of region

Implement fmap_region_exists which acts as a wrapper for checking if a
    region name exists in FMAP.

BUG=chrome-os-partner:59352
    BRANCH=None
    TEST=Verified that fmap_exists returns existence of region names present
    in FMAP.

Change-Id: I288ea8c7c57d3b0f237cdece42c4f5fe9c2c066a
    Signed-off-by: Furquan Shaikh 
---
 src/include/fmap.h | 3 +++
 src/lib/fmap.c     | 6 ++++++
 2 files changed, 9 insertions(+)

diff --git a/src/include/fmap.h b/src/include/fmap.h
index 5834831..774fbfe 100644
--- a/src/include/fmap.h
+++ b/src/include/fmap.h
@@ -36,6 +36,9 @@ int fmap_locate_area_as_rdev_rw(const char *name, struct region_device *area);
  * < 0 on error. */
 int fmap_locate_area(const char *name, struct region *r);

+/* Check if region exists in fmap. Return 1 on success, 0 on error. */
+int fmap_region_exists(const char *name);
+
 /* Find fmap area name by offset and size.
  * Return 0 on success, < 0 on error. */
 int fmap_find_region_name(const struct region * const ar,
diff --git a/src/lib/fmap.c b/src/lib/fmap.c
index 9602134..8cb7267 100644
--- a/src/lib/fmap.c
+++ b/src/lib/fmap.c
@@ -131,6 +131,12 @@ int fmap_locate_area(const char *name, struct region *ar)
    return -1;
 }

+int fmap_region_exists(const char *name)
+{
+	struct region ar;
+	return !fmap_locate_area(name, &ar);
+}
+
 int fmap_find_region_name(const struct region * const ar,
    char name[FMAP_STRLEN])
 {