[PATCH 3/6] fw_env: add ROUND_UP() helper

Rafał Miłecki zajec5 at gmail.com
Sat Feb 21 11:00:08 CET 2026


From: Rafał Miłecki <rafal at milecki.pl>

We already have DIV_ROUND_UP() to simplify code so add ROUND_UP() as
well. This makes code in flash_write_buf() easier to follow.

Signed-off-by: Rafał Miłecki <rafal at milecki.pl>
---
 tools/env/fw_env.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/env/fw_env.c b/tools/env/fw_env.c
index fcbe09ea981..c369bda1b85 100644
--- a/tools/env/fw_env.c
+++ b/tools/env/fw_env.c
@@ -50,6 +50,7 @@ struct env_opts default_opts = {
 };
 
 #define DIV_ROUND_UP(n, d)	(((n) + (d) - 1) / (d))
+#define ROUND_UP(x, y)		(DIV_ROUND_UP(x, y) * (y))
 
 #define min(x, y) ({				\
 	typeof(x) _min1 = (x);			\
@@ -1027,8 +1028,7 @@ static int flash_write_buf(int dev, int fd, void *buf, size_t count)
 		 * to the start of the data, then count bytes of data, and
 		 * to the end of the block
 		 */
-		write_total = ((block_seek + count + blocklen - 1) /
-			       blocklen) * blocklen;
+		write_total = ROUND_UP(block_seek + count, blocklen);
 	}
 
 	/*
-- 
2.51.0



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