From: Raymond Mao <raymond.mao@linaro.org>
Date: Fri, 18 Jul 2025 14:16:15 +0000 (-0700)
Subject: bloblist: add helper functions
X-Git-Tag: v2026.07-rc1~7^2~4
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ad82e750fd2af6d7f098e78e70cbba1678e84b2f;p=thirdparty%2Fu-boot.git

bloblist: add helper functions

Add two helper functions for:
1. marking a blob void
2. getting blob record from a given blob data pointer.

Signed-off-by: Raymond Mao <raymond.mao@linaro.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
Tested-by: Michal Simek <michal.simek@amd.com>
---

diff --git a/common/bloblist.c b/common/bloblist.c
index 1c690f58b56..488908f605e 100644
--- a/common/bloblist.c
+++ b/common/bloblist.c
@@ -97,6 +97,19 @@ static inline uint rec_tag(struct bloblist_rec *rec)
 		BLOBLISTR_TAG_SHIFT;
 }
 
+static inline void void_blob(struct bloblist_rec *rec)
+{
+	if (rec_tag(rec) == BLOBLISTT_VOID)
+		return;
+	rec->tag_and_hdr_size = BLOBLISTT_VOID |
+				sizeof(*rec) << BLOBLISTR_HDR_SIZE_SHIFT;
+}
+
+static inline struct bloblist_rec *rec_from_blob(void *blob)
+{
+	return (blob - sizeof(struct bloblist_rec));
+}
+
 static ulong bloblist_blob_end_ofs(struct bloblist_hdr *hdr,
 				   struct bloblist_rec *rec)
 {