From: Caleb Connolly <caleb.connolly@linaro.org>
Date: Fri, 18 Oct 2024 13:51:07 +0000 (+0200)
Subject: lmb: notify when adjacent regions are added
X-Git-Url: http://git.dujemihanovic.xyz/img/sics.gif?a=commitdiff_plain;h=491195769dbeed62f0a2f20cfa198bd2b297720e;p=u-boot.git

lmb: notify when adjacent regions are added

lmb_add_region() returns a positive integer if the added regions causes
existing regions to be coalesced. We still want to notify the EFI
subsystem about these added regions though, so adjust lmb_add() to only
bail on errors.

This fixes EFI memory allocation on boards with adjacent memory banks as is the
case on several Qualcomm boards like the RB3 Gen 2.

Fixes: 2f6191526a13 (lmb: notify of any changes to the LMB memory map)
Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
Reviewed-by: Sughosh Ganu <sughosh.ganu@linaro.org>
Tested-by: Neil Armstrong <neil.armstrong@linaro.org>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
---

diff --git a/lib/lmb.c b/lib/lmb.c
index 78fe2d4de7..7e90f17876 100644
--- a/lib/lmb.c
+++ b/lib/lmb.c
@@ -487,7 +487,7 @@ long lmb_add(phys_addr_t base, phys_size_t size)
 	struct alist *lmb_rgn_lst = &lmb.free_mem;
 
 	ret = lmb_add_region(lmb_rgn_lst, base, size);
-	if (ret)
+	if (ret < 0)
 		return ret;
 
 	if (lmb_should_notify(LMB_NONE))