qcacld-3.0: 4.8 Kernel Migration - Remove ablkcipher

As of version 4.8 of the Linux kernel, the ablkcipher Api is removed.
Remove all obsolete crypto functions that reference this Api.

Change-Id: Ia82743d048834a67dfce23b91f660beb59b1e94d
CRs-Fixed: 1079951
(cherry picked from commit bf349575d765f53f207c7cb2ad6c66a198cf07de)

core/cds/inc/cds_crypto.h

@@ -34,28 +34,7 @@
  *
  */
 
-#include <qdf_types.h>
-#include <qdf_status.h>
-#include <qdf_mem.h>
-#include <qdf_list.h>
-#include <qdf_trace.h>
-#include <qdf_event.h>
-#include <qdf_lock.h>
-#include <cds_reg_service.h>
-#include <cds_mq.h>
-#include <cds_packet.h>
-#include <cds_sched.h>
-#include <qdf_threads.h>
-#include <qdf_mc_timer.h>
-#include <cds_pack_align.h>
-#include <crypto/aes.h>
-#include <crypto/hash.h>
-
-static inline struct crypto_ahash *cds_crypto_alloc_ahash(const char *alg_name,
-	u32 type, u32 mask)
-{
-	return crypto_alloc_ahash(alg_name, type, mask);
-}
+#include <linux/crypto.h>
 
 static inline struct crypto_cipher *
 cds_crypto_alloc_cipher(const char *alg_name, u32 type, u32 mask)
@@ -68,36 +47,4 @@ static inline void cds_crypto_free_cipher(struct crypto_cipher *tfm)
 	crypto_free_cipher(tfm);
 }
 
-static inline void cds_crypto_free_ahash(struct crypto_ahash *tfm)
-{
-	crypto_free_ahash(tfm);
-}
-
-static inline int cds_crypto_ahash_setkey(struct crypto_ahash *tfm,
-	const u8 *key, unsigned int keylen)
-{
-	return crypto_ahash_setkey(tfm, key, keylen);
-}
-
-static inline int cds_crypto_ahash_digest(struct ahash_request *req)
-{
-	return crypto_ahash_digest(req);
-}
-
-static inline struct crypto_ablkcipher *
-cds_crypto_alloc_ablkcipher(const char *alg_name, u32 type, u32 mask)
-{
-	return crypto_alloc_ablkcipher(alg_name, type, mask);
-}
-
-static inline void cds_ablkcipher_request_free(struct ablkcipher_request *req)
-{
-	ablkcipher_request_free(req);
-}
-
-static inline void cds_crypto_free_ablkcipher(struct crypto_ablkcipher *tfm)
-{
-	crypto_free_ablkcipher(tfm);
-}
-
 #endif /* if !defined __CDS_CRYPTO_H */

core/cds/inc/cds_utils.h

@@ -118,72 +118,6 @@ QDF_STATUS cds_crypto_deinit(uint32_t hCryptProv);
 QDF_STATUS cds_rand_get_bytes(uint32_t handle, uint8_t *pbBuf,
 			      uint32_t numBytes);
 
-/**
- * cds_sha1_hmac_str
- *
- * FUNCTION:
- * Generate the HMAC-SHA1 of a string given a key.
- *
- * LOGIC:
- * Standard HMAC processing from RFC 2104. The code is provided in the
- * appendix of the RFC.
- *
- * ASSUMPTIONS:
- * The RFC is correct.
- *
- * @param text text to be hashed
- * @param textLen length of text
- * @param key key to use for HMAC
- * @param keyLen length of key
- * @param digest holds resultant SHA1 HMAC (20B)
- *
- * @return QDF_STATUS_SUCCSS if the operation succeeds
- *
- */
-QDF_STATUS cds_sha1_hmac_str(uint32_t cryptHandle,      /* Handle */
-			     uint8_t *text,    /* pointer to data stream */
-			     uint32_t textLen,  /* length of data stream */
-			     uint8_t *key,     /* pointer to authentication key */
-			     uint32_t keyLen,   /* length of authentication key */
-			     uint8_t digest[CDS_DIGEST_SHA1_SIZE]);     /* caller digest to be filled in */
-
-/**
- * cds_md5_hmac_str
- *
- * FUNCTION:
- * Generate the HMAC-MD5 of a string given a key.
- *
- * LOGIC:
- * Standard HMAC processing from RFC 2104. The code is provided in the
- * appendix of the RFC.
- *
- * ASSUMPTIONS:
- * The RFC is correct.
- *
- * @param text text to be hashed
- * @param textLen length of text
- * @param key key to use for HMAC
- * @param keyLen length of key
- * @param digest holds resultant MD5 HMAC (16B)
- *
- * @return QDF_STATUS_SUCCSS if the operation succeeds
- *
- */
-QDF_STATUS cds_md5_hmac_str(uint32_t cryptHandle,       /* Handle */
-			    uint8_t *text,     /* pointer to data stream */
-			    uint32_t textLen,   /* length of data stream */
-			    uint8_t *key,      /* pointer to authentication key */
-			    uint32_t keyLen,    /* length of authentication key */
-			    uint8_t digest[CDS_DIGEST_MD5_SIZE]);       /* caller digest to be filled in */
-
-QDF_STATUS cds_encrypt_aes(uint32_t cryptHandle,        /* Handle */
-			   uint8_t *pText,      /* pointer to data stream */
-			   uint8_t *Encrypted, uint8_t *pKey);          /* pointer to authentication key */
-
-QDF_STATUS cds_decrypt_aes(uint32_t cryptHandle,        /* Handle */
-			   uint8_t *pText,      /* pointer to data stream */
-			   uint8_t *pDecrypted, uint8_t *pKey);         /* pointer to authentication key */
-
 uint32_t cds_chan_to_freq(uint8_t chan);
 uint8_t cds_freq_to_chan(uint32_t freq);
 enum cds_band_type cds_chan_to_band(uint32_t chan);

core/cds/src/cds_utils.c

@@ -38,9 +38,6 @@
    cds_crypto_init() - Initializes Crypto module
    cds_crypto_deinit() - De-initializes Crypto module
    cds_rand_get_bytes() - Generates random byte
-   cds_sha1_hmac_str() - Generate the HMAC-SHA1 of a string given a key
-   cds_encrypt_aes() - Generate AES Encrypted byte stream
-   cds_decrypt_aes() - Decrypts an AES Encrypted byte stream
 
    DEPENDENCIES:
    ============================================================================*/
@@ -568,532 +565,6 @@ err_tfm:
 }
 
 #endif /* WLAN_FEATURE_11W */
-/**
- * cds_sha1_hmac_str
- *
- * FUNCTION:
- * Generate the HMAC-SHA1 of a string given a key.
- *
- * LOGIC:
- * Standard HMAC processing from RFC 2104. The code is provided in the
- * appendix of the RFC.
- *
- * ASSUMPTIONS:
- * The RFC is correct.
- *
- * @param text text to be hashed
- * @param textLen length of text
- * @param key key to use for HMAC
- * @param keyLen length of key
- * @param digest holds resultant SHA1 HMAC (20B)
- *
- * @return QDF_STATUS_SUCCSS if the operation succeeds
- *
- */
-
-struct hmac_sha1_result {
-	struct completion completion;
-	int err;
-};
-
-static void hmac_sha1_complete(struct crypto_async_request *req, int err)
-{
-	struct hmac_sha1_result *r = req->data;
-	if (err == -EINPROGRESS)
-		return;
-	r->err = err;
-	complete(&r->completion);
-}
-
-static int
-hmac_sha1(uint8_t *key, uint8_t ksize, char *plaintext, uint8_t psize,
-	  uint8_t *output, uint8_t outlen)
-{
-	int ret = 0;
-	struct crypto_ahash *tfm;
-	struct scatterlist sg;
-	struct ahash_request *req;
-	struct hmac_sha1_result tresult;
-	void *hash_buff = NULL;
-
-	unsigned char hash_result[64];
-	int i;
-
-	memset(output, 0, outlen);
-
-	init_completion(&tresult.completion);
-
-	tfm = cds_crypto_alloc_ahash("hmac(sha1)", CRYPTO_ALG_TYPE_AHASH,
-				 CRYPTO_ALG_TYPE_AHASH_MASK);
-	if (IS_ERR(tfm)) {
-		QDF_TRACE(QDF_MODULE_ID_QDF, QDF_TRACE_LEVEL_ERROR,
-			  "crypto_alloc_ahash failed");
-		ret = PTR_ERR(tfm);
-		goto err_tfm;
-	}
-
-	req = ahash_request_alloc(tfm, GFP_KERNEL);
-	if (!req) {
-		QDF_TRACE(QDF_MODULE_ID_QDF, QDF_TRACE_LEVEL_ERROR,
-			  "failed to allocate request for hmac(sha1)");
-		ret = -ENOMEM;
-		goto err_req;
-	}
-
-	ahash_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG,
-				   hmac_sha1_complete, &tresult);
-
-	hash_buff = kzalloc(psize, GFP_KERNEL);
-	if (!hash_buff) {
-		QDF_TRACE(QDF_MODULE_ID_QDF, QDF_TRACE_LEVEL_ERROR,
-			  "failed to kzalloc hash_buff");
-		ret = -ENOMEM;
-		goto err_hash_buf;
-	}
-
-	memset(hash_result, 0, 64);
-	memcpy(hash_buff, plaintext, psize);
-	sg_init_one(&sg, hash_buff, psize);
-
-	if (ksize) {
-		crypto_ahash_clear_flags(tfm, ~0);
-		ret = cds_crypto_ahash_setkey(tfm, key, ksize);
-		if (ret) {
-			QDF_TRACE(QDF_MODULE_ID_QDF, QDF_TRACE_LEVEL_ERROR,
-				  "crypto_ahash_setkey failed");
-			goto err_setkey;
-		}
-	}
-
-	ahash_request_set_crypt(req, &sg, hash_result, psize);
-	ret = cds_crypto_ahash_digest(req);
-	QDF_TRACE(QDF_MODULE_ID_QDF, QDF_TRACE_LEVEL_ERROR, "ret 0x%x", ret);
-
-	switch (ret) {
-	case 0:
-		for (i = 0; i < outlen; i++)
-			output[i] = hash_result[i];
-		break;
-	case -EINPROGRESS:
-	case -EBUSY:
-		ret = wait_for_completion_interruptible(&tresult.completion);
-		if (!ret && !tresult.err) {
-			for (i = 0; i < outlen; i++)
-				output[i] = hash_result[i];
-			INIT_COMPLETION(tresult.completion);
-			break;
-		} else {
-			QDF_TRACE(QDF_MODULE_ID_QDF, QDF_TRACE_LEVEL_ERROR,
-				  "wait_for_completion_interruptible failed");
-			if (!ret)
-				ret = tresult.err;
-			goto out;
-		}
-	default:
-		goto out;
-	}
-
-out:
-err_setkey:
-	kfree(hash_buff);
-err_hash_buf:
-	ahash_request_free(req);
-err_req:
-	cds_crypto_free_ahash(tfm);
-err_tfm:
-	return ret;
-}
-
-QDF_STATUS cds_sha1_hmac_str(uint32_t cryptHandle,      /* Handle */
-			     uint8_t *pText,    /* pointer to data stream */
-			     uint32_t textLen,  /* length of data stream */
-			     uint8_t *pKey,     /* pointer to authentication key */
-			     uint32_t keyLen,   /* length of authentication key */
-			     uint8_t digest[CDS_DIGEST_SHA1_SIZE])
-{                               /* caller digest to be filled in */
-	int ret = 0;
-
-	ret = hmac_sha1(pKey,   /* uint8_t *key, */
-			(uint8_t) keyLen,       /* uint8_t ksize, */
-			(char *)pText,  /* char *plaintext, */
-			(uint8_t) textLen,      /* uint8_t psize, */
-			digest, /* uint8_t *output, */
-			CDS_DIGEST_SHA1_SIZE    /* uint8_t outlen */
-			);
-
-	if (ret != 0) {
-		QDF_TRACE(QDF_MODULE_ID_QDF, QDF_TRACE_LEVEL_ERROR,
-			  "hmac_sha1() call failed");
-		return QDF_STATUS_E_FAULT;
-	}
-
-	return QDF_STATUS_SUCCESS;
-}
-
-/**
- * cds_md5_hmac_str
- *
- * FUNCTION:
- * Generate the HMAC-MD5 of a string given a key.
- *
- * LOGIC:
- * Standard HMAC processing from RFC 2104. The code is provided in the
- * appendix of the RFC.
- *
- * ASSUMPTIONS:
- * The RFC is correct.
- *
- * @param text text to be hashed
- * @param textLen length of text
- * @param key key to use for HMAC
- * @param keyLen length of key
- * @param digest holds resultant MD5 HMAC (20B)
- *
- * @return QDF_STATUS_SUCCSS if the operation succeeds
- *
- */
-struct hmac_md5_result {
-	struct completion completion;
-	int err;
-};
-
-static void hmac_md5_complete(struct crypto_async_request *req, int err)
-{
-	struct hmac_md5_result *r = req->data;
-	if (err == -EINPROGRESS)
-		return;
-	r->err = err;
-	complete(&r->completion);
-}
-
-static int
-hmac_md5(uint8_t *key, uint8_t ksize, char *plaintext, uint8_t psize,
-	 uint8_t *output, uint8_t outlen)
-{
-	int ret = 0;
-	struct crypto_ahash *tfm;
-	struct scatterlist sg;
-	struct ahash_request *req;
-	struct hmac_md5_result tresult = {.err = 0 };
-	void *hash_buff = NULL;
-
-	unsigned char hash_result[64];
-	int i;
-
-	memset(output, 0, outlen);
-
-	init_completion(&tresult.completion);
-
-	tfm = cds_crypto_alloc_ahash("hmac(md5)", CRYPTO_ALG_TYPE_AHASH,
-				 CRYPTO_ALG_TYPE_AHASH_MASK);
-	if (IS_ERR(tfm)) {
-		QDF_TRACE(QDF_MODULE_ID_QDF, QDF_TRACE_LEVEL_ERROR,
-			  "crypto_alloc_ahash failed");
-		ret = PTR_ERR(tfm);
-		goto err_tfm;
-	}
-
-	req = ahash_request_alloc(tfm, GFP_KERNEL);
-	if (!req) {
-		QDF_TRACE(QDF_MODULE_ID_QDF, QDF_TRACE_LEVEL_ERROR,
-			  "failed to allocate request for hmac(md5)");
-		ret = -ENOMEM;
-		goto err_req;
-	}
-
-	ahash_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG,
-				   hmac_md5_complete, &tresult);
-
-	hash_buff = kzalloc(psize, GFP_KERNEL);
-	if (!hash_buff) {
-		QDF_TRACE(QDF_MODULE_ID_QDF, QDF_TRACE_LEVEL_ERROR,
-			  "failed to kzalloc hash_buff");
-		ret = -ENOMEM;
-		goto err_hash_buf;
-	}
-
-	memset(hash_result, 0, 64);
-	memcpy(hash_buff, plaintext, psize);
-	sg_init_one(&sg, hash_buff, psize);
-
-	if (ksize) {
-		crypto_ahash_clear_flags(tfm, ~0);
-		ret = cds_crypto_ahash_setkey(tfm, key, ksize);
-		if (ret) {
-			QDF_TRACE(QDF_MODULE_ID_QDF, QDF_TRACE_LEVEL_ERROR,
-				  "crypto_ahash_setkey failed");
-			goto err_setkey;
-		}
-	}
-
-	ahash_request_set_crypt(req, &sg, hash_result, psize);
-	ret = cds_crypto_ahash_digest(req);
-
-	QDF_TRACE(QDF_MODULE_ID_QDF, QDF_TRACE_LEVEL_ERROR, "ret 0x%x", ret);
-
-	switch (ret) {
-	case 0:
-		for (i = 0; i < outlen; i++)
-			output[i] = hash_result[i];
-		break;
-	case -EINPROGRESS:
-	case -EBUSY:
-		ret = wait_for_completion_interruptible(&tresult.completion);
-		if (!ret && !tresult.err) {
-			INIT_COMPLETION(tresult.completion);
-			break;
-		} else {
-			QDF_TRACE(QDF_MODULE_ID_QDF, QDF_TRACE_LEVEL_ERROR,
-				  "wait_for_completion_interruptible failed");
-			if (!ret)
-				ret = tresult.err;
-			goto out;
-		}
-	default:
-		goto out;
-	}
-
-out:
-err_setkey:
-	kfree(hash_buff);
-err_hash_buf:
-	ahash_request_free(req);
-err_req:
-	cds_crypto_free_ahash(tfm);
-err_tfm:
-	return ret;
-}
-
-QDF_STATUS cds_md5_hmac_str(uint32_t cryptHandle,       /* Handle */
-			    uint8_t *pText,     /* pointer to data stream */
-			    uint32_t textLen,   /* length of data stream */
-			    uint8_t *pKey,      /* pointer to authentication key */
-			    uint32_t keyLen,    /* length of authentication key */
-			    uint8_t digest[CDS_DIGEST_MD5_SIZE])
-{                               /* caller digest to be filled in */
-	int ret = 0;
-
-	ret = hmac_md5(pKey,    /* uint8_t *key, */
-		       (uint8_t) keyLen,        /* uint8_t ksize, */
-		       (char *)pText,   /* char *plaintext, */
-		       (uint8_t) textLen,       /* uint8_t psize, */
-		       digest,  /* uint8_t *output, */
-		       CDS_DIGEST_MD5_SIZE      /* uint8_t outlen */
-		       );
-
-	if (ret != 0) {
-		QDF_TRACE(QDF_MODULE_ID_QDF, QDF_TRACE_LEVEL_ERROR,
-			  "hmac_md5() call failed");
-		return QDF_STATUS_E_FAULT;
-	}
-
-	return QDF_STATUS_SUCCESS;
-}
-
-struct ecb_aes_result {
-	struct completion completion;
-	int err;
-};
-
-static void ecb_aes_complete(struct crypto_async_request *req, int err)
-{
-	struct ecb_aes_result *r = req->data;
-	if (err == -EINPROGRESS)
-		return;
-	r->err = err;
-	complete(&r->completion);
-}
-
-/*--------------------------------------------------------------------------
-
-   \brief cds_encrypt_aes() - Generate AES Encrypted byte stream
-
-   The cds_encrypt_aes() function generates the encrypted byte stream for given text.
-
-   Buffer should be allocated before calling cds_rand_get_bytes().
-
-   Attempting to initialize an already initialized lock results in
-   a failure.
-
-   \param lock - pointer to the opaque lock object to initialize
-
-   \return QDF_STATUS_SUCCESS - Successfully generated random memory.
-
-   QDF_STATUS_E_FAULT  - pbBuf is an invalid pointer.
-
-   QDF_STATUS_E_FAILURE - default return value if it fails due to
-   unknown reasons
-
-  ***QDF_STATUS_E_RESOURCES - System resources (other than memory)
-  are unavailable
-   \sa
-
-    ( *** return value not considered yet )
-   --------------------------------------------------------------------------*/
-
-QDF_STATUS cds_encrypt_aes(uint32_t cryptHandle,        /* Handle */
-			   uint8_t *pPlainText,         /* pointer to data stream */
-			   uint8_t *pCiphertext, uint8_t *pKey)
-{                               /* pointer to authentication key */
-	struct ecb_aes_result result;
-	struct ablkcipher_request *req;
-	struct crypto_ablkcipher *tfm;
-	int ret = 0;
-	char iv[IV_SIZE_AES_128];
-	struct scatterlist sg_in;
-	struct scatterlist sg_out;
-
-	init_completion(&result.completion);
-
-	tfm = cds_crypto_alloc_ablkcipher("cbc(aes)", 0, 0);
-	if (IS_ERR(tfm)) {
-		QDF_TRACE(QDF_MODULE_ID_QDF, QDF_TRACE_LEVEL_ERROR,
-			  "crypto_alloc_ablkcipher failed");
-		ret = PTR_ERR(tfm);
-		goto err_tfm;
-	}
-
-	req = ablkcipher_request_alloc(tfm, GFP_KERNEL);
-	if (!req) {
-		QDF_TRACE(QDF_MODULE_ID_QDF, QDF_TRACE_LEVEL_ERROR,
-			  "Failed to allocate request for cbc(aes)");
-		ret = -ENOMEM;
-		goto err_req;
-	}
-
-	ablkcipher_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG,
-					ecb_aes_complete, &result);
-
-	crypto_ablkcipher_clear_flags(tfm, ~0);
-
-	ret = crypto_ablkcipher_setkey(tfm, pKey, AES_KEYSIZE_128);
-	if (ret) {
-		QDF_TRACE(QDF_MODULE_ID_QDF, QDF_TRACE_LEVEL_ERROR,
-			  "crypto_cipher_setkey failed");
-		goto err_setkey;
-	}
-
-	memset(iv, 0, IV_SIZE_AES_128);
-
-	sg_init_one(&sg_in, pPlainText, AES_BLOCK_SIZE);
-
-	sg_init_one(&sg_out, pCiphertext, AES_BLOCK_SIZE);
-
-	ablkcipher_request_set_crypt(req, &sg_in, &sg_out, AES_BLOCK_SIZE, iv);
-
-	crypto_ablkcipher_encrypt(req);
-
-/* ------------------------------------- */
-err_setkey:
-	cds_ablkcipher_request_free(req);
-err_req:
-	cds_crypto_free_ablkcipher(tfm);
-err_tfm:
-	/* return ret; */
-	if (ret != 0) {
-		QDF_TRACE(QDF_MODULE_ID_QDF, QDF_TRACE_LEVEL_ERROR,
-			  "%s() call failed", __func__);
-		return QDF_STATUS_E_FAULT;
-	}
-
-	return QDF_STATUS_SUCCESS;
-}
-
-/*--------------------------------------------------------------------------
-
-   \brief cds_decrypt_aes() - Decrypts an AES Encrypted byte stream
-
-   The cds_decrypt_aes() function decrypts the encrypted byte stream.
-
-   Buffer should be allocated before calling cds_rand_get_bytes().
-
-   Attempting to initialize an already initialized lock results in
-   a failure.
-
-   \param lock - pointer to the opaque lock object to initialize
-
-   \return QDF_STATUS_SUCCESS - Successfully generated random memory.
-
-   QDF_STATUS_E_FAULT  - pbBuf is an invalid pointer.
-
-   QDF_STATUS_E_FAILURE - default return value if it fails due to
-   unknown reasons
-
-  ***QDF_STATUS_E_RESOURCES - System resources (other than memory)
-  are unavailable
-   \sa
-
-    ( *** return value not considered yet )
-   --------------------------------------------------------------------------*/
-
-QDF_STATUS cds_decrypt_aes(uint32_t cryptHandle,        /* Handle */
-			   uint8_t *pText,      /* pointer to data stream */
-			   uint8_t *pDecrypted, uint8_t *pKey)
-{                               /* pointer to authentication key */
-/*    QDF_STATUS uResult = QDF_STATUS_E_FAILURE; */
-	struct ecb_aes_result result;
-	struct ablkcipher_request *req;
-	struct crypto_ablkcipher *tfm;
-	int ret = 0;
-	char iv[IV_SIZE_AES_128];
-	struct scatterlist sg_in;
-	struct scatterlist sg_out;
-
-	init_completion(&result.completion);
-
-	tfm = cds_crypto_alloc_ablkcipher("cbc(aes)", 0, 0);
-	if (IS_ERR(tfm)) {
-		QDF_TRACE(QDF_MODULE_ID_QDF, QDF_TRACE_LEVEL_ERROR,
-			  "crypto_alloc_ablkcipher failed");
-		ret = PTR_ERR(tfm);
-		goto err_tfm;
-	}
-
-	req = ablkcipher_request_alloc(tfm, GFP_KERNEL);
-	if (!req) {
-		QDF_TRACE(QDF_MODULE_ID_QDF, QDF_TRACE_LEVEL_ERROR,
-			  "Failed to allocate request for cbc(aes)");
-		ret = -ENOMEM;
-		goto err_req;
-	}
-
-	ablkcipher_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG,
-					ecb_aes_complete, &result);
-
-	crypto_ablkcipher_clear_flags(tfm, ~0);
-
-	ret = crypto_ablkcipher_setkey(tfm, pKey, AES_KEYSIZE_128);
-	if (ret) {
-		QDF_TRACE(QDF_MODULE_ID_QDF, QDF_TRACE_LEVEL_ERROR,
-			  "crypto_cipher_setkey failed");
-		goto err_setkey;
-	}
-
-	memset(iv, 0, IV_SIZE_AES_128);
-
-	sg_init_one(&sg_in, pText, AES_BLOCK_SIZE);
-
-	sg_init_one(&sg_out, pDecrypted, AES_BLOCK_SIZE);
-
-	ablkcipher_request_set_crypt(req, &sg_in, &sg_out, AES_BLOCK_SIZE, iv);
-
-	crypto_ablkcipher_decrypt(req);
-
-/* ------------------------------------- */
-err_setkey:
-	cds_ablkcipher_request_free(req);
-err_req:
-	cds_crypto_free_ablkcipher(tfm);
-err_tfm:
-	/* return ret; */
-	if (ret != 0) {
-		QDF_TRACE(QDF_MODULE_ID_QDF, QDF_TRACE_LEVEL_ERROR,
-			  "%s() call failed", __func__);
-		return QDF_STATUS_E_FAULT;
-	}
-
-	return QDF_STATUS_SUCCESS;
-}
 
 uint32_t cds_chan_to_freq(uint8_t chan)
 {