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Commit 40acb558 authored by Dinesh K Garg's avatar Dinesh K Garg
Browse files

Setting correct HW crypto driver instance for FDE 



HW crypto provides different instance for different use cases.
Dm-req-crypt should use the one for full disk encryption use case.

Change-Id: I22d3f6ab1dd6f83b0d5b83a681236719e2340934
Signed-off-by: default avatarDinesh K Garg <dineshg@codeaurora.org>
parent 62a8ead9

drivers/md/dm-req-crypt.c

+15 −0
Original line number Diff line number Diff line
@@ -46,6 +46,7 @@ 


#define DM_REQ_CRYPT_ERROR -1

#define DM_REQ_CRYPT_ERROR_AFTER_PAGE_MALLOC -2

#define FDE_CRYPTO_DEVICE 0



struct req_crypt_result {

	struct completion completion;
@@ -196,6 +197,13 @@ static void req_cryptd_crypt_read_convert(struct req_dm_crypt_io *io) 
	ablkcipher_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG,

					req_crypt_cipher_complete, &result);

	init_completion(&result.completion);

	err = qcrypto_cipher_set_device(req, FDE_CRYPTO_DEVICE);

	if (err != 0) {

		DMERR("%s qcrypto_cipher_set_device failed with err %d\n",

				__func__, err);

		error = DM_REQ_CRYPT_ERROR;

		goto ablkcipher_req_alloc_failure;

	}

	qcrypto_cipher_set_flag(req,

		QCRYPTO_CTX_USE_PIPE_KEY | QCRYPTO_CTX_XTS_DU_SIZE_512B);

	crypto_ablkcipher_clear_flags(tfm, ~0);
@@ -322,6 +330,13 @@ static void req_cryptd_crypt_write_convert(struct req_dm_crypt_io *io) 
				req_crypt_cipher_complete, &result);



	init_completion(&result.completion);

	error = qcrypto_cipher_set_device(req, FDE_CRYPTO_DEVICE);

	if (error != 0) {

		DMERR("%s qcrypto_cipher_set_device failed with error %d\n",

				__func__, error);

		error = DM_REQ_CRYPT_ERROR;

		goto ablkcipher_req_alloc_failure;

	}

	qcrypto_cipher_set_flag(req,

		QCRYPTO_CTX_USE_PIPE_KEY | QCRYPTO_CTX_XTS_DU_SIZE_512B);

	crypto_ablkcipher_clear_flags(tfm, ~0);