From f12d2997fcde22afdf681a09262f3f819f241055 Mon Sep 17 00:00:00 2001
From: Patrick Rudolph <patrick.rudolph@9elements.com>
Date: Sun, 22 Feb 2026 16:40:28 +0100
Subject: [PATCH] lib/cbfs: Don't include unused LZ4 code to shrink postcar
 stage

When ramstage is not LZ4 compressed then don't include the LZ4
decompressor into postcar stage.

TEST=Reduces postcar size on Lenovo x220 by 1224 bytes.

Change-Id: I51e25d94213b42474c8cedd9e7bae9e81568566d
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/91385
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@mailbox.org>
---
 src/lib/cbfs.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/lib/cbfs.c b/src/lib/cbfs.c
index 0c602474b3..25a29a2885 100644
--- a/src/lib/cbfs.c
+++ b/src/lib/cbfs.c
@@ -137,6 +137,9 @@ static inline bool cbfs_lz4_enabled(void)
 	if (ENV_SMM)
 		return false;
 
+	if (ENV_RAMSTAGE_LOADER && !CONFIG(COMPRESS_RAMSTAGE_LZ4))
+		return false;
+
 	return true;
 }