s390/zcrypt: remove unused function zcrypt_type6_mex_key_de()

Signed-off-by: Harald Freudenberger <freude@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

diff --git a/drivers/s390/crypto/zcrypt_cca_key.h b/drivers/s390/crypto/zcrypt_cca_key.h
index 771cbb9..12cff62 100644 (file)
--- a/drivers/s390/crypto/zcrypt_cca_key.h
+++ b/drivers/s390/crypto/zcrypt_cca_key.h
@@ -48,26 +48,6 @@ struct cca_token_hdr {
 
 #define CCA_TKN_HDR_ID_EXT 0x1E
 
-/**
- * mapping for the cca private ME section
- */
-struct cca_private_ext_ME_sec {
-       unsigned char  section_identifier;
-       unsigned char  version;
-       unsigned short section_length;
-       unsigned char  private_key_hash[20];
-       unsigned char  reserved1[4];
-       unsigned char  key_format;
-       unsigned char  reserved2;
-       unsigned char  key_name_hash[20];
-       unsigned char  key_use_flags[4];
-       unsigned char  reserved3[6];
-       unsigned char  reserved4[24];
-       unsigned char  confounder[24];
-       unsigned char  exponent[128];
-       unsigned char  modulus[128];
-} __attribute__((packed));
-
 #define CCA_PVT_USAGE_ALL 0x80
 
 /**
@@ -124,71 +104,6 @@ struct cca_pvt_ext_CRT_sec {
 #define CCA_PVT_EXT_CRT_SEC_FMT_CL 0x40
 
 /**
- * Set up private key fields of a type6 MEX message.
- * Note that all numerics in the key token are big-endian,
- * while the entries in the key block header are little-endian.
- *
- * @mex: pointer to user input data
- * @p: pointer to memory area for the key
- *
- * Returns the size of the key area or -EFAULT
- */
-static inline int zcrypt_type6_mex_key_de(struct ica_rsa_modexpo *mex, void *p)
-{
-       static struct cca_token_hdr static_pvt_me_hdr = {
-               .token_identifier       =  0x1E,
-               .token_length           =  0x0183,
-       };
-       static struct cca_private_ext_ME_sec static_pvt_me_sec = {
-               .section_identifier     =  0x02,
-               .section_length         =  0x016C,
-               .key_use_flags          = {0x80,0x00,0x00,0x00},
-       };
-       static struct cca_public_sec static_pub_me_sec = {
-               .section_identifier     =  0x04,
-               .section_length         =  0x000F,
-               .exponent_len           =  0x0003,
-       };
-       static char pk_exponent[3] = { 0x01, 0x00, 0x01 };
-       struct {
-               struct T6_keyBlock_hdr t6_hdr;
-               struct cca_token_hdr pvtMeHdr;
-               struct cca_private_ext_ME_sec pvtMeSec;
-               struct cca_public_sec pubMeSec;
-               char exponent[3];
-       } __attribute__((packed)) *key = p;
-       unsigned char *temp;
-
-       memset(key, 0, sizeof(*key));
-
-       key->t6_hdr.blen = 0x189;
-       key->t6_hdr.ulen = 0x189 - 2;
-       key->pvtMeHdr = static_pvt_me_hdr;
-       key->pvtMeSec = static_pvt_me_sec;
-       key->pubMeSec = static_pub_me_sec;
-       /*
-        * In a private key, the modulus doesn't appear in the public
-        * section. So, an arbitrary public exponent of 0x010001 will be
-        * used.
-        */
-       memcpy(key->exponent, pk_exponent, 3);
-
-       /* key parameter block */
-       temp = key->pvtMeSec.exponent +
-               sizeof(key->pvtMeSec.exponent) - mex->inputdatalength;
-       if (copy_from_user(temp, mex->b_key, mex->inputdatalength))
-               return -EFAULT;
-
-       /* modulus */
-       temp = key->pvtMeSec.modulus +
-               sizeof(key->pvtMeSec.modulus) - mex->inputdatalength;
-       if (copy_from_user(temp, mex->n_modulus, mex->inputdatalength))
-               return -EFAULT;
-       key->pubMeSec.modulus_bit_len = 8 * mex->inputdatalength;
-       return sizeof(*key);
-}
-
-/**
  * Set up private key fields of a type6 MEX message. The _pad variant
  * strips leading zeroes from the b_key.
  * Note that all numerics in the key token are big-endian,