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From: Fabio Estevam <fabio.estevam@nxp.com>
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Currently the mxs-dcp driver fails to probe:
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mxs-dcp 80028000.dcp: Failed to register sha1 hash!
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mxs-dcp: probe of 80028000.dcp failed with error -22
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This happens since commit 8996eafdcbad ("crypto: ahash - ensure statesize
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is non-zero"), which requires statesize to be filled.
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Other than filling statesize, we also need to provide the import/export
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functions.
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Based on the implementation of the sahara and caam drivers.
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Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
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---
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Changes since v2:
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- Newly introduced in this series
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drivers/crypto/mxs-dcp.c | 24 ++++++++++++++++++++++++
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1 file changed, 24 insertions(+)
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--- a/drivers/crypto/mxs-dcp.c
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+++ b/drivers/crypto/mxs-dcp.c
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@@ -775,6 +775,24 @@ static void dcp_sha_cra_exit(struct cryp
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{
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}
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+static int dcp_sha_export(struct ahash_request *req, void *out)
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+{
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+ struct dcp_sha_req_ctx *rctx = ahash_request_ctx(req);
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+
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+ memcpy(out, rctx, sizeof(struct dcp_sha_req_ctx));
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+
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+ return 0;
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+}
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+
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+static int dcp_sha_import(struct ahash_request *req, const void *in)
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+{
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+ struct dcp_sha_req_ctx *rctx = ahash_request_ctx(req);
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+
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+ memcpy(rctx, in, sizeof(struct dcp_sha_req_ctx));
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+
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+ return 0;
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+}
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+
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/* AES 128 ECB and AES 128 CBC */
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static struct crypto_alg dcp_aes_algs[] = {
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{
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@@ -834,8 +852,11 @@ static struct ahash_alg dcp_sha1_alg = {
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.final = dcp_sha_final,
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.finup = dcp_sha_finup,
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.digest = dcp_sha_digest,
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+ .import = dcp_sha_import,
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+ .export = dcp_sha_export,
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.halg = {
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.digestsize = SHA1_DIGEST_SIZE,
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+ .statesize = sizeof(struct dcp_sha_req_ctx),
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.base = {
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.cra_name = "sha1",
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.cra_driver_name = "sha1-dcp",
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@@ -858,8 +879,11 @@ static struct ahash_alg dcp_sha256_alg =
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.final = dcp_sha_final,
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.finup = dcp_sha_finup,
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.digest = dcp_sha_digest,
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+ .import = dcp_sha_import,
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+ .export = dcp_sha_export,
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.halg = {
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.digestsize = SHA256_DIGEST_SIZE,
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+ .statesize = sizeof(struct dcp_sha_req_ctx),
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.base = {
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.cra_name = "sha256",
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.cra_driver_name = "sha256-dcp",
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