[PATCH 3/3] lib: asn1_encode: remove obsolete asn1_encode_oid

[James Bottomley <James.Bottomley@HansenPartnership.com>]

This has been replaced by encode_OID from the OID_registry.  To use,
consumers must make sure the OID is present in enum OID in
oid_registry.h and then use encode_OID with the enum.

Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
---
 include/linux/asn1_encoder.h |  3 --
 lib/asn1_encoder.c           | 91 ------------------------------------
 2 files changed, 94 deletions(-)

diff --git a/include/linux/asn1_encoder.h b/include/linux/asn1_encoder.h
index 08cd0c2ad34f..5f8cf47ede59 100644
--- a/include/linux/asn1_encoder.h
+++ b/include/linux/asn1_encoder.h
@@ -13,9 +13,6 @@ unsigned char *
 asn1_encode_integer(unsigned char *data, const unsigned char *end_data,
 		    s64 integer);
 unsigned char *
-asn1_encode_oid(unsigned char *data, const unsigned char *end_data,
-		u32 oid[], int oid_len);
-unsigned char *
 asn1_encode_tag(unsigned char *data, const unsigned char *end_data,
 		u32 tag, const unsigned char *string, int len);
 unsigned char *
diff --git a/lib/asn1_encoder.c b/lib/asn1_encoder.c
index 0fd3c454a468..c0db3cbebe89 100644
--- a/lib/asn1_encoder.c
+++ b/lib/asn1_encoder.c
@@ -85,97 +85,6 @@ asn1_encode_integer(unsigned char *data, const unsigned char *end_data,
 }
 EXPORT_SYMBOL_GPL(asn1_encode_integer);
 
-/* calculate the base 128 digit values setting the top bit of the first octet */
-static int asn1_encode_oid_digit(unsigned char **_data, int *data_len, u32 oid)
-{
-	unsigned char *data = *_data;
-	int start = 7 + 7 + 7 + 7;
-	int ret = 0;
-
-	if (*data_len < 1)
-		return -EINVAL;
-
-	/* quick case */
-	if (oid == 0) {
-		*data++ = 0x80;
-		(*data_len)--;
-		goto out;
-	}
-
-	while (oid >> start == 0)
-		start -= 7;
-
-	while (start > 0 && *data_len > 0) {
-		u8 byte;
-
-		byte = oid >> start;
-		oid = oid - (byte << start);
-		start -= 7;
-		byte |= 0x80;
-		*data++ = byte;
-		(*data_len)--;
-	}
-
-	if (*data_len > 0) {
-		*data++ = oid;
-		(*data_len)--;
-	} else {
-		ret = -EINVAL;
-	}
-
- out:
-	*_data = data;
-	return ret;
-}
-
-/**
- * asn1_encode_oid() - encode an oid to ASN.1
- * @data:	position to begin encoding at
- * @end_data:	end of data pointer, points one beyond last usable byte in @data
- * @oid:	array of oids
- * @oid_len:	length of oid array
- *
- * this encodes an OID up to ASN.1 when presented as an array of OID values
- */
-unsigned char *
-asn1_encode_oid(unsigned char *data, const unsigned char *end_data,
-		u32 oid[], int oid_len)
-{
-	int data_len = end_data - data;
-	unsigned char *d = data + 2;
-	int i, ret;
-
-	if (WARN(oid_len < 2, "OID must have at least two elements"))
-		return ERR_PTR(-EINVAL);
-
-	if (WARN(oid_len > 32, "OID is too large"))
-		return ERR_PTR(-EINVAL);
-
-	if (IS_ERR(data))
-		return data;
-
-
-	/* need at least 3 bytes for tag, length and OID encoding */
-	if (data_len < 3)
-		return ERR_PTR(-EINVAL);
-
-	data[0] = _tag(UNIV, PRIM, OID);
-	*d++ = oid[0] * 40 + oid[1];
-
-	data_len -= 3;
-
-	for (i = 2; i < oid_len; i++) {
-		ret = asn1_encode_oid_digit(&d, &data_len, oid[i]);
-		if (ret < 0)
-			return ERR_PTR(ret);
-	}
-
-	data[1] = d - data - 2;
-
-	return d;
-}
-EXPORT_SYMBOL_GPL(asn1_encode_oid);
-
 /**
  * asn1_encode_length() - encode a length to follow an ASN.1 tag
  * @data: pointer to encode at
-- 
2.35.3