Change in coreboot[master]: commonlib/region: Add rdev_readat_full helper method

[Raul Rangel (Code Review)]

Raul Rangel has submitted this change. ( https://review.coreboot.org/c/coreboot/+/58761 )

Change subject: commonlib/region: Add rdev_readat_full helper method
......................................................................

commonlib/region: Add rdev_readat_full helper method

This helper method makes the code a bit cleaner.

BUG=b:179699789
TEST=none

Suggested-by: Julius Werner 
Signed-off-by: Raul E Rangel 
Change-Id: Ie442217eba2e8f99de1407d61f965428b5c6f3bf
Reviewed-on: https://review.coreboot.org/c/coreboot/+/58761
Tested-by: build bot (Jenkins) 
Reviewed-by: Julius Werner 
Reviewed-by: Karthik Ramasubramanian 
---
M src/commonlib/include/commonlib/region.h
1 file changed, 11 insertions(+), 0 deletions(-)

Approvals:
  build bot (Jenkins): Verified
  Julius Werner: Looks good to me, approved
  Karthik Ramasubramanian: Looks good to me, approved

diff --git a/src/commonlib/include/commonlib/region.h b/src/commonlib/include/commonlib/region.h
index 764870f..5d73d9e 100644
--- a/src/commonlib/include/commonlib/region.h
+++ b/src/commonlib/include/commonlib/region.h
@@ -158,6 +158,17 @@
 }

/*
+ * Returns < 0 on error otherwise returns size of data read at provided
+ * offset filling in the buffer passed.
+ *
+ * You must ensure the buffer is large enough to hold the full region_device.
+ */
+static inline ssize_t rdev_readat_full(const struct region_device *rd, void *b)
+{
+	return rdev_readat(rd, b, 0, region_device_sz(rd));
+}
+
+/*
  * Compute relative offset of the child (c) w.r.t. the parent (p). Returns < 0
  * when child is not within the parent's region.
  */