From dce846293982409b4027cd93e03b686750ab6195 Mon Sep 17 00:00:00 2001
From: Stefan Schmidt <stefan@datenfreihafen.org>
Date: Thu, 31 Mar 2016 22:30:29 +0200
Subject: [PATCH] atusb: fw: leave the FCS check to the kernel stack

This check is more harm than good. For example in promiscuous mode we might want
to get frames with invalid CRC. The kernel subsystem is in a way better
situation to understand what the user want thus we deliver all packets and leave
the decision to him.
---
 atusb/fw/mac.c | 8 --------
 1 file changed, 8 deletions(-)

diff --git a/atusb/fw/mac.c b/atusb/fw/mac.c
index 01df184..016e9c5 100644
--- a/atusb/fw/mac.c
+++ b/atusb/fw/mac.c
@@ -126,15 +126,7 @@ static void receive_frame(void)
 	uint8_t *buf;
 
 	spi_begin();
-#ifdef AT86RF231
-	if (!(spi_io(AT86RF230_BUF_READ) & RX_CRC_VALID)) {
-		spi_end();
-		return;
-	}
-#endif
-#ifdef AT86RF230
 	spi_io(AT86RF230_BUF_READ);
-#endif
 
 	size = spi_recv();
 	if (!size || (size & 0x80)) {