From 3d83e6752d5595351a47309aab0749984c5909b7 Mon Sep 17 00:00:00 2001 From: Lukasz Majewski Date: Tue, 10 Jun 2014 12:25:59 +0200 Subject: [PATCH] dfu: Disable default calculation of CRC32 Patch (SHA1: bd694244db7bc969954) dfu: Introduction of the "dfu_hash_algo" env variable for checksum method setting already introduced more generic handling of the crc32 calculation. Up till now the CRC32 of received data was calculated unconditionally. This patch changes this and from now - by default the crc32 is NOT calculated anymore. Signed-off-by: Lukasz Majewski Cc: Marek Vasut --- drivers/dfu/dfu.c | 20 +++++++------------- 1 file changed, 7 insertions(+), 13 deletions(-) diff --git a/drivers/dfu/dfu.c b/drivers/dfu/dfu.c index 5878f991d9..dc09ff6466 100644 --- a/drivers/dfu/dfu.c +++ b/drivers/dfu/dfu.c @@ -106,21 +106,15 @@ static char *dfu_get_hash_algo(void) char *s; s = getenv("dfu_hash_algo"); - /* - * By default the legacy behaviour to calculate the crc32 hash - * value is preserved. - * - * To disable calculation of the hash algorithm for received data - * specify the "dfu_hash_algo = disabled" at your board envs. - */ - debug("%s: DFU hash method: %s\n", __func__, s ? s : "not specified"); - - if (!s || !strcmp(s, "crc32")) - return "crc32"; - - if (!strcmp(s, "disabled")) + if (!s) return NULL; + if (!strcmp(s, "crc32")) { + debug("%s: DFU hash method: %s\n", __func__, s); + return s; + } + + error("DFU hash method: %s not supported!\n", s); return NULL; } -- 2.39.2