commit b9192a4c80ec96044442bedbe122e2afd624c4a0
author Carles Cufi <carles.cufi@nordicsemi.no> Thu Feb 10 11:41:57 2022 +0100
committer Fabio Utzig <utzig@utzig.org> Thu Feb 10 09:47:08 2022 -0300
tree 82a56261122d0c310447fcf99876d62df1c8ccdd
parent e3822f8180edfa0d29c229c8c2046567bde9d3aa

boot: serial: Adapt to Zephyr's new CRC APIs

As part of https://github.com/zephyrproject-rtos/zephyr/pull/42457,
Zephyr recently changed its CRC APIs. The commit below
adapted the use of mcumgr in-tree, but MCUboot was missing the change:
https://github.com/zephyrproject-rtos/zephyr/commit/07c78e515c827c8346a758a5ce04cd56a46ae124

Note that although on other platforms the function called is
crc_ccitt(), the CRC16 actually used by MCUboot/mcumgr is:
https://reveng.sourceforge.io/crc-catalogue/16.htm#crc.cat.crc-16-xmodem

Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>

boot/boot_serial/src/boot_serial.c

diff --git a/boot/boot_serial/src/boot_serial.c b/boot/boot_serial/src/boot_serial.c
index 680cdf0..4b30d17 100644
--- a/boot/boot_serial/src/boot_serial.c
+++ b/boot/boot_serial/src/boot_serial.c
@@ -589,9 +589,8 @@
     bs_hdr->nh_group = htons(bs_hdr->nh_group);
 
 #ifdef __ZEPHYR__
-    crc =  crc16((uint8_t *)bs_hdr, sizeof(*bs_hdr), CRC_CITT_POLYMINAL,
-                 CRC16_INITIAL_CRC, false);
-    crc =  crc16(data, len, CRC_CITT_POLYMINAL, crc, true);
+    crc =  crc16_itu_t(CRC16_INITIAL_CRC, (uint8_t *)bs_hdr, sizeof(*bs_hdr));
+    crc =  crc16_itu_t(crc, data, len);
 #else
     crc = crc16_ccitt(CRC16_INITIAL_CRC, bs_hdr, sizeof(*bs_hdr));
     crc = crc16_ccitt(crc, data, len);
@@ -665,7 +664,7 @@
 
     out += sizeof(uint16_t);
 #ifdef __ZEPHYR__
-    crc = crc16(out, len, CRC_CITT_POLYMINAL, CRC16_INITIAL_CRC, true);
+    crc = crc16_itu_t(CRC16_INITIAL_CRC, out, len);
 #else
     crc = crc16_ccitt(CRC16_INITIAL_CRC, out, len);
 #endif