Backports v5.4.27

Backports generated by toradex backports f6e8852f1ef28e6d3c9bae8400eb6a87a6b0c3e7
against mainline kernel tag v5.4.27

Signed-off-by: Oleksandr Suvorov <oleksandr.suvorov@toradex.com>

1 files changed, 25 insertions, 0 deletions

diff --git a/compat/backport-3.2.c b/compat/backport-3.2.c
new file mode 100644
index 0000000..601a168
--- /dev/null
+++ b/compat/backport-3.2.c
@@ -0,0 +1,25 @@
+/*
+ * Linux backport symbols for kernels 3.2.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/kernel.h>
+#include <linux/export.h>
+
+int hex2bin(u8 *dst, const char *src, size_t count)
+{
+	while (count--) {
+		int hi = hex_to_bin(*src++);
+		int lo = hex_to_bin(*src++);
+
+		if ((hi < 0) || (lo < 0))
+			return -1;
+
+		*dst++ = (hi << 4) | lo;
+	}
+	return 0;
+}
+EXPORT_SYMBOL_GPL(hex2bin);