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    Subject[PATCH] crypto: mxs-dcp: Add empty hash export and import
    Date
    Crypto framework will require async hash export/import, so add empty
    functions to prevent OOPS.

    Signed-off-by: Kamil Konieczny <k.konieczny@partner.samsung.com>
    ---
    drivers/crypto/mxs-dcp.c | 14 ++++++++++++++
    1 file changed, 14 insertions(+)

    diff --git a/drivers/crypto/mxs-dcp.c b/drivers/crypto/mxs-dcp.c
    index 764be3e6933c..a10c418d4e5c 100644
    --- a/drivers/crypto/mxs-dcp.c
    +++ b/drivers/crypto/mxs-dcp.c
    @@ -759,6 +759,16 @@ static int dcp_sha_digest(struct ahash_request *req)
    return dcp_sha_finup(req);
    }

    +static int dcp_sha_noimport(struct ahash_request *req, const void *in)
    +{
    + return -ENOSYS;
    +}
    +
    +static int dcp_sha_noexport(struct ahash_request *req, void *out)
    +{
    + return -ENOSYS;
    +}
    +
    static int dcp_sha_cra_init(struct crypto_tfm *tfm)
    {
    crypto_ahash_set_reqsize(__crypto_ahash_cast(tfm),
    @@ -829,6 +839,8 @@ static struct ahash_alg dcp_sha1_alg = {
    .final = dcp_sha_final,
    .finup = dcp_sha_finup,
    .digest = dcp_sha_digest,
    + .import = dcp_sha_noimport,
    + .export = dcp_sha_noexport,
    .halg = {
    .digestsize = SHA1_DIGEST_SIZE,
    .base = {
    @@ -853,6 +865,8 @@ static struct ahash_alg dcp_sha256_alg = {
    .final = dcp_sha_final,
    .finup = dcp_sha_finup,
    .digest = dcp_sha_digest,
    + .import = dcp_sha_noimport,
    + .export = dcp_sha_noexport,
    .halg = {
    .digestsize = SHA256_DIGEST_SIZE,
    .base = {
    --
    2.15.0
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