From a7815fff3d292ada671347320dd171f9915993cf Mon Sep 17 00:00:00 2001
From: Uwe Bonnes <bon@elektron.ikp.physik.tu-darmstadt.de>
Date: Wed, 4 Oct 2017 14:35:26 +0200
Subject: [PATCH] target.c: No need to split write while still in same flash
 block.

---
 src/target/target.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/target/target.c b/src/target/target.c
index c984ffe6..a0da26c6 100644
--- a/src/target/target.c
+++ b/src/target/target.c
@@ -213,7 +213,8 @@ int target_flash_write(target *t,
 	int ret = 0;
 	while (len) {
 		struct target_flash *f = flash_for_addr(t, dest);
-		size_t tmplen = MIN(len, f->length - (dest % f->length));
+		size_t tmptarget = MIN(dest + len, f->start + f->length);
+		size_t tmplen = tmptarget - dest;
 		if (f->align > 1) {
 			uint32_t offset = dest % f->align;
 			uint8_t data[ALIGN(offset + tmplen, f->align)];