[PATCH v2 02/14] crypto: caam - fix return code in completion callbacks

From: Iuliana Prodan
Date: Thu Jul 18 2019 - 19:58:36 EST

From: Horia GeantÄ <horia.geanta@xxxxxxx>

Modify drive to provide a valid errno (and not the HW error ID)
to the user, via completion callbacks.

A "valid errno" is currently not explicitly mentioned in the docs,
however the error code is expected to match the one returned by the
generic SW implementation.

Note: in most error cases caam/qi and caam/qi2 returned -EIO; align all
caam drivers to return -EINVAL.

While here, ratelimit prints triggered by fuzz testing, such that
console is not flooded.

Signed-off-by: Horia GeantÄ <horia.geanta@xxxxxxx>
Signed-off-by: Iuliana Prodan <iuliana.prodan@xxxxxxx>
---
drivers/crypto/caam/caamalg.c | 26 ++++++++--------
drivers/crypto/caam/caamalg_qi.c | 21 ++++---------
drivers/crypto/caam/caamalg_qi2.c | 62 ++++++++++++---------------------------
drivers/crypto/caam/caamhash.c | 20 ++++++++-----
drivers/crypto/caam/caampkc.c | 20 ++++++++-----
drivers/crypto/caam/error.c | 60 +++++++++++++++++++++++--------------
drivers/crypto/caam/error.h | 2 +-
drivers/crypto/caam/key_gen.c | 5 ++--
drivers/crypto/caam/qi.c | 5 ++--
9 files changed, 104 insertions(+), 117 deletions(-)

diff --git a/drivers/crypto/caam/caamalg.c b/drivers/crypto/caam/caamalg.c
index 43f1825..06b4f2d 100644
--- a/drivers/crypto/caam/caamalg.c
+++ b/drivers/crypto/caam/caamalg.c
@@ -930,19 +930,20 @@ static void aead_encrypt_done(struct device *jrdev, u32 *desc, u32 err,
{
struct aead_request *req = context;
struct aead_edesc *edesc;
+ int ecode = 0;

dev_dbg(jrdev, "%s %d: err 0x%x\n", __func__, __LINE__, err);

edesc = container_of(desc, struct aead_edesc, hw_desc[0]);

if (err)
- caam_jr_strstatus(jrdev, err);
+ ecode = caam_jr_strstatus(jrdev, err);

aead_unmap(jrdev, edesc, req);

kfree(edesc);

- aead_request_complete(req, err);
+ aead_request_complete(req, ecode);
}

static void aead_decrypt_done(struct device *jrdev, u32 *desc, u32 err,
@@ -950,25 +951,20 @@ static void aead_decrypt_done(struct device *jrdev, u32 *desc, u32 err,
{
struct aead_request *req = context;
struct aead_edesc *edesc;
+ int ecode = 0;

dev_dbg(jrdev, "%s %d: err 0x%x\n", __func__, __LINE__, err);

edesc = container_of(desc, struct aead_edesc, hw_desc[0]);

if (err)
- caam_jr_strstatus(jrdev, err);
+ ecode = caam_jr_strstatus(jrdev, err);

aead_unmap(jrdev, edesc, req);

- /*
- * verify hw auth check passed else return -EBADMSG
- */
- if ((err & JRSTA_CCBERR_ERRID_MASK) == JRSTA_CCBERR_ERRID_ICVCHK)
- err = -EBADMSG;
-
kfree(edesc);

- aead_request_complete(req, err);
+ aead_request_complete(req, ecode);
}

static void skcipher_encrypt_done(struct device *jrdev, u32 *desc, u32 err,
@@ -978,13 +974,14 @@ static void skcipher_encrypt_done(struct device *jrdev, u32 *desc, u32 err,
struct skcipher_edesc *edesc;
struct crypto_skcipher *skcipher = crypto_skcipher_reqtfm(req);
int ivsize = crypto_skcipher_ivsize(skcipher);
+ int ecode = 0;

dev_dbg(jrdev, "%s %d: err 0x%x\n", __func__, __LINE__, err);

edesc = container_of(desc, struct skcipher_edesc, hw_desc[0]);

if (err)
- caam_jr_strstatus(jrdev, err);
+ ecode = caam_jr_strstatus(jrdev, err);

skcipher_unmap(jrdev, edesc, req);

@@ -1008,7 +1005,7 @@ static void skcipher_encrypt_done(struct device *jrdev, u32 *desc, u32 err,

kfree(edesc);

- skcipher_request_complete(req, err);
+ skcipher_request_complete(req, ecode);
}

static void skcipher_decrypt_done(struct device *jrdev, u32 *desc, u32 err,
@@ -1018,12 +1015,13 @@ static void skcipher_decrypt_done(struct device *jrdev, u32 *desc, u32 err,
struct skcipher_edesc *edesc;
struct crypto_skcipher *skcipher = crypto_skcipher_reqtfm(req);
int ivsize = crypto_skcipher_ivsize(skcipher);
+ int ecode = 0;

dev_dbg(jrdev, "%s %d: err 0x%x\n", __func__, __LINE__, err);

edesc = container_of(desc, struct skcipher_edesc, hw_desc[0]);
if (err)
- caam_jr_strstatus(jrdev, err);
+ ecode = caam_jr_strstatus(jrdev, err);

skcipher_unmap(jrdev, edesc, req);

@@ -1047,7 +1045,7 @@ static void skcipher_decrypt_done(struct device *jrdev, u32 *desc, u32 err,

kfree(edesc);

- skcipher_request_complete(req, err);
+ skcipher_request_complete(req, ecode);
}

/*
diff --git a/drivers/crypto/caam/caamalg_qi.c b/drivers/crypto/caam/caamalg_qi.c
index 32f0f8a..ab263b1 100644
--- a/drivers/crypto/caam/caamalg_qi.c
+++ b/drivers/crypto/caam/caamalg_qi.c
@@ -884,20 +884,8 @@ static void aead_done(struct caam_drv_req *drv_req, u32 status)

qidev = caam_ctx->qidev;

- if (unlikely(status)) {
- u32 ssrc = status & JRSTA_SSRC_MASK;
- u8 err_id = status & JRSTA_CCBERR_ERRID_MASK;
-
- caam_jr_strstatus(qidev, status);
- /*
- * verify hw auth check passed else return -EBADMSG
- */
- if (ssrc == JRSTA_SSRC_CCB_ERROR &&
- err_id == JRSTA_CCBERR_ERRID_ICVCHK)
- ecode = -EBADMSG;
- else
- ecode = -EIO;
- }
+ if (unlikely(status))
+ ecode = caam_jr_strstatus(qidev, status);

edesc = container_of(drv_req, typeof(*edesc), drv_req);
aead_unmap(qidev, edesc, aead_req);
@@ -1190,13 +1178,14 @@ static void skcipher_done(struct caam_drv_req *drv_req, u32 status)
struct caam_ctx *caam_ctx = crypto_skcipher_ctx(skcipher);
struct device *qidev = caam_ctx->qidev;
int ivsize = crypto_skcipher_ivsize(skcipher);
+ int ecode = 0;

dev_dbg(qidev, "%s %d: status 0x%x\n", __func__, __LINE__, status);

edesc = container_of(drv_req, typeof(*edesc), drv_req);

if (status)
- caam_jr_strstatus(qidev, status);
+ ecode = caam_jr_strstatus(qidev, status);

print_hex_dump_debug("dstiv @" __stringify(__LINE__)": ",
DUMP_PREFIX_ADDRESS, 16, 4, req->iv,
@@ -1215,7 +1204,7 @@ static void skcipher_done(struct caam_drv_req *drv_req, u32 status)
memcpy(req->iv, (u8 *)&edesc->sgt[0] + edesc->qm_sg_bytes, ivsize);

qi_cache_free(edesc);
- skcipher_request_complete(req, status);
+ skcipher_request_complete(req, ecode);
}

static struct skcipher_edesc *skcipher_edesc_alloc(struct skcipher_request *req,
diff --git a/drivers/crypto/caam/caamalg_qi2.c b/drivers/crypto/caam/caamalg_qi2.c
index 06bf32c..2681581 100644
--- a/drivers/crypto/caam/caamalg_qi2.c
+++ b/drivers/crypto/caam/caamalg_qi2.c
@@ -1227,10 +1227,8 @@ static void aead_encrypt_done(void *cbk_ctx, u32 status)

dev_dbg(ctx->dev, "%s %d: err 0x%x\n", __func__, __LINE__, status);

- if (unlikely(status)) {
- caam_qi2_strstatus(ctx->dev, status);
- ecode = -EIO;
- }
+ if (unlikely(status))
+ ecode = caam_qi2_strstatus(ctx->dev, status);

aead_unmap(ctx->dev, edesc, req);
qi_cache_free(edesc);
@@ -1250,17 +1248,8 @@ static void aead_decrypt_done(void *cbk_ctx, u32 status)

dev_dbg(ctx->dev, "%s %d: err 0x%x\n", __func__, __LINE__, status);

- if (unlikely(status)) {
- caam_qi2_strstatus(ctx->dev, status);
- /*
- * verify hw auth check passed else return -EBADMSG
- */
- if ((status & JRSTA_CCBERR_ERRID_MASK) ==
- JRSTA_CCBERR_ERRID_ICVCHK)
- ecode = -EBADMSG;
- else
- ecode = -EIO;
- }
+ if (unlikely(status))
+ ecode = caam_qi2_strstatus(ctx->dev, status);

aead_unmap(ctx->dev, edesc, req);
qi_cache_free(edesc);
@@ -1352,10 +1341,8 @@ static void skcipher_encrypt_done(void *cbk_ctx, u32 status)

dev_dbg(ctx->dev, "%s %d: err 0x%x\n", __func__, __LINE__, status);

- if (unlikely(status)) {
- caam_qi2_strstatus(ctx->dev, status);
- ecode = -EIO;
- }
+ if (unlikely(status))
+ ecode = caam_qi2_strstatus(ctx->dev, status);

print_hex_dump_debug("dstiv @" __stringify(__LINE__)": ",
DUMP_PREFIX_ADDRESS, 16, 4, req->iv,
@@ -1390,10 +1377,8 @@ static void skcipher_decrypt_done(void *cbk_ctx, u32 status)

dev_dbg(ctx->dev, "%s %d: err 0x%x\n", __func__, __LINE__, status);

- if (unlikely(status)) {
- caam_qi2_strstatus(ctx->dev, status);
- ecode = -EIO;
- }
+ if (unlikely(status))
+ ecode = caam_qi2_strstatus(ctx->dev, status);

print_hex_dump_debug("dstiv @" __stringify(__LINE__)": ",
DUMP_PREFIX_ADDRESS, 16, 4, req->iv,
@@ -3094,10 +3079,7 @@ static void split_key_sh_done(void *cbk_ctx, u32 err)

dev_dbg(res->dev, "%s %d: err 0x%x\n", __func__, __LINE__, err);

- if (err)
- caam_qi2_strstatus(res->dev, err);
-
- res->err = err;
+ res->err = err ? caam_qi2_strstatus(res->dev, err) : 0;
complete(&res->completion);
}

@@ -3282,10 +3264,8 @@ static void ahash_done(void *cbk_ctx, u32 status)

dev_dbg(ctx->dev, "%s %d: err 0x%x\n", __func__, __LINE__, status);

- if (unlikely(status)) {
- caam_qi2_strstatus(ctx->dev, status);
- ecode = -EIO;
- }
+ if (unlikely(status))
+ ecode = caam_qi2_strstatus(ctx->dev, status);

ahash_unmap_ctx(ctx->dev, edesc, req, DMA_FROM_DEVICE);
memcpy(req->result, state->caam_ctx, digestsize);
@@ -3310,10 +3290,8 @@ static void ahash_done_bi(void *cbk_ctx, u32 status)

dev_dbg(ctx->dev, "%s %d: err 0x%x\n", __func__, __LINE__, status);

- if (unlikely(status)) {
- caam_qi2_strstatus(ctx->dev, status);
- ecode = -EIO;
- }
+ if (unlikely(status))
+ ecode = caam_qi2_strstatus(ctx->dev, status);

ahash_unmap_ctx(ctx->dev, edesc, req, DMA_BIDIRECTIONAL);
switch_buf(state);
@@ -3343,10 +3321,8 @@ static void ahash_done_ctx_src(void *cbk_ctx, u32 status)

dev_dbg(ctx->dev, "%s %d: err 0x%x\n", __func__, __LINE__, status);

- if (unlikely(status)) {
- caam_qi2_strstatus(ctx->dev, status);
- ecode = -EIO;
- }
+ if (unlikely(status))
+ ecode = caam_qi2_strstatus(ctx->dev, status);

ahash_unmap_ctx(ctx->dev, edesc, req, DMA_BIDIRECTIONAL);
memcpy(req->result, state->caam_ctx, digestsize);
@@ -3371,10 +3347,8 @@ static void ahash_done_ctx_dst(void *cbk_ctx, u32 status)

dev_dbg(ctx->dev, "%s %d: err 0x%x\n", __func__, __LINE__, status);

- if (unlikely(status)) {
- caam_qi2_strstatus(ctx->dev, status);
- ecode = -EIO;
- }
+ if (unlikely(status))
+ ecode = caam_qi2_strstatus(ctx->dev, status);

ahash_unmap_ctx(ctx->dev, edesc, req, DMA_FROM_DEVICE);
switch_buf(state);
@@ -4700,7 +4674,7 @@ static void dpaa2_caam_process_fd(struct dpaa2_caam_priv *priv,

fd_err = dpaa2_fd_get_ctrl(fd) & FD_CTRL_ERR_MASK;
if (unlikely(fd_err))
- dev_err(priv->dev, "FD error: %08x\n", fd_err);
+ dev_err_ratelimited(priv->dev, "FD error: %08x\n", fd_err);

/*
* FD[ADDR] is guaranteed to be valid, irrespective of errors reported
diff --git a/drivers/crypto/caam/caamhash.c b/drivers/crypto/caam/caamhash.c
index e4ac5d5..73abefa 100644
--- a/drivers/crypto/caam/caamhash.c
+++ b/drivers/crypto/caam/caamhash.c
@@ -584,12 +584,13 @@ static void ahash_done(struct device *jrdev, u32 *desc, u32 err,
int digestsize = crypto_ahash_digestsize(ahash);
struct caam_hash_state *state = ahash_request_ctx(req);
struct caam_hash_ctx *ctx = crypto_ahash_ctx(ahash);
+ int ecode = 0;

dev_dbg(jrdev, "%s %d: err 0x%x\n", __func__, __LINE__, err);

edesc = container_of(desc, struct ahash_edesc, hw_desc[0]);
if (err)
- caam_jr_strstatus(jrdev, err);
+ ecode = caam_jr_strstatus(jrdev, err);

ahash_unmap_ctx(jrdev, edesc, req, digestsize, DMA_FROM_DEVICE);
memcpy(req->result, state->caam_ctx, digestsize);
@@ -599,7 +600,7 @@ static void ahash_done(struct device *jrdev, u32 *desc, u32 err,
DUMP_PREFIX_ADDRESS, 16, 4, state->caam_ctx,
ctx->ctx_len, 1);

- req->base.complete(&req->base, err);
+ req->base.complete(&req->base, ecode);
}

static void ahash_done_bi(struct device *jrdev, u32 *desc, u32 err,
@@ -611,12 +612,13 @@ static void ahash_done_bi(struct device *jrdev, u32 *desc, u32 err,
struct caam_hash_ctx *ctx = crypto_ahash_ctx(ahash);
struct caam_hash_state *state = ahash_request_ctx(req);
int digestsize = crypto_ahash_digestsize(ahash);
+ int ecode = 0;

dev_dbg(jrdev, "%s %d: err 0x%x\n", __func__, __LINE__, err);

edesc = container_of(desc, struct ahash_edesc, hw_desc[0]);
if (err)
- caam_jr_strstatus(jrdev, err);
+ ecode = caam_jr_strstatus(jrdev, err);

ahash_unmap_ctx(jrdev, edesc, req, ctx->ctx_len, DMA_BIDIRECTIONAL);
switch_buf(state);
@@ -630,7 +632,7 @@ static void ahash_done_bi(struct device *jrdev, u32 *desc, u32 err,
DUMP_PREFIX_ADDRESS, 16, 4, req->result,
digestsize, 1);

- req->base.complete(&req->base, err);
+ req->base.complete(&req->base, ecode);
}

static void ahash_done_ctx_src(struct device *jrdev, u32 *desc, u32 err,
@@ -642,12 +644,13 @@ static void ahash_done_ctx_src(struct device *jrdev, u32 *desc, u32 err,
int digestsize = crypto_ahash_digestsize(ahash);
struct caam_hash_state *state = ahash_request_ctx(req);
struct caam_hash_ctx *ctx = crypto_ahash_ctx(ahash);
+ int ecode = 0;

dev_dbg(jrdev, "%s %d: err 0x%x\n", __func__, __LINE__, err);

edesc = container_of(desc, struct ahash_edesc, hw_desc[0]);
if (err)
- caam_jr_strstatus(jrdev, err);
+ ecode = caam_jr_strstatus(jrdev, err);

ahash_unmap_ctx(jrdev, edesc, req, digestsize, DMA_BIDIRECTIONAL);
memcpy(req->result, state->caam_ctx, digestsize);
@@ -657,7 +660,7 @@ static void ahash_done_ctx_src(struct device *jrdev, u32 *desc, u32 err,
DUMP_PREFIX_ADDRESS, 16, 4, state->caam_ctx,
ctx->ctx_len, 1);

- req->base.complete(&req->base, err);
+ req->base.complete(&req->base, ecode);
}

static void ahash_done_ctx_dst(struct device *jrdev, u32 *desc, u32 err,
@@ -669,12 +672,13 @@ static void ahash_done_ctx_dst(struct device *jrdev, u32 *desc, u32 err,
struct caam_hash_ctx *ctx = crypto_ahash_ctx(ahash);
struct caam_hash_state *state = ahash_request_ctx(req);
int digestsize = crypto_ahash_digestsize(ahash);
+ int ecode = 0;

dev_dbg(jrdev, "%s %d: err 0x%x\n", __func__, __LINE__, err);

edesc = container_of(desc, struct ahash_edesc, hw_desc[0]);
if (err)
- caam_jr_strstatus(jrdev, err);
+ ecode = caam_jr_strstatus(jrdev, err);

ahash_unmap_ctx(jrdev, edesc, req, ctx->ctx_len, DMA_FROM_DEVICE);
switch_buf(state);
@@ -688,7 +692,7 @@ static void ahash_done_ctx_dst(struct device *jrdev, u32 *desc, u32 err,
DUMP_PREFIX_ADDRESS, 16, 4, req->result,
digestsize, 1);

- req->base.complete(&req->base, err);
+ req->base.complete(&req->base, ecode);
}

/*
diff --git a/drivers/crypto/caam/caampkc.c b/drivers/crypto/caam/caampkc.c
index 8057410..574428c7 100644
--- a/drivers/crypto/caam/caampkc.c
+++ b/drivers/crypto/caam/caampkc.c
@@ -107,9 +107,10 @@ static void rsa_pub_done(struct device *dev, u32 *desc, u32 err, void *context)
{
struct akcipher_request *req = context;
struct rsa_edesc *edesc;
+ int ecode = 0;

if (err)
- caam_jr_strstatus(dev, err);
+ ecode = caam_jr_strstatus(dev, err);

edesc = container_of(desc, struct rsa_edesc, hw_desc[0]);

@@ -117,7 +118,7 @@ static void rsa_pub_done(struct device *dev, u32 *desc, u32 err, void *context)
rsa_io_unmap(dev, edesc, req);
kfree(edesc);

- akcipher_request_complete(req, err);
+ akcipher_request_complete(req, ecode);
}

static void rsa_priv_f1_done(struct device *dev, u32 *desc, u32 err,
@@ -125,9 +126,10 @@ static void rsa_priv_f1_done(struct device *dev, u32 *desc, u32 err,
{
struct akcipher_request *req = context;
struct rsa_edesc *edesc;
+ int ecode = 0;

if (err)
- caam_jr_strstatus(dev, err);
+ ecode = caam_jr_strstatus(dev, err);

edesc = container_of(desc, struct rsa_edesc, hw_desc[0]);

@@ -135,7 +137,7 @@ static void rsa_priv_f1_done(struct device *dev, u32 *desc, u32 err,
rsa_io_unmap(dev, edesc, req);
kfree(edesc);

- akcipher_request_complete(req, err);
+ akcipher_request_complete(req, ecode);
}

static void rsa_priv_f2_done(struct device *dev, u32 *desc, u32 err,
@@ -143,9 +145,10 @@ static void rsa_priv_f2_done(struct device *dev, u32 *desc, u32 err,
{
struct akcipher_request *req = context;
struct rsa_edesc *edesc;
+ int ecode = 0;

if (err)
- caam_jr_strstatus(dev, err);
+ ecode = caam_jr_strstatus(dev, err);

edesc = container_of(desc, struct rsa_edesc, hw_desc[0]);

@@ -153,7 +156,7 @@ static void rsa_priv_f2_done(struct device *dev, u32 *desc, u32 err,
rsa_io_unmap(dev, edesc, req);
kfree(edesc);

- akcipher_request_complete(req, err);
+ akcipher_request_complete(req, ecode);
}

static void rsa_priv_f3_done(struct device *dev, u32 *desc, u32 err,
@@ -161,9 +164,10 @@ static void rsa_priv_f3_done(struct device *dev, u32 *desc, u32 err,
{
struct akcipher_request *req = context;
struct rsa_edesc *edesc;
+ int ecode = 0;

if (err)
- caam_jr_strstatus(dev, err);
+ ecode = caam_jr_strstatus(dev, err);

edesc = container_of(desc, struct rsa_edesc, hw_desc[0]);

@@ -171,7 +175,7 @@ static void rsa_priv_f3_done(struct device *dev, u32 *desc, u32 err,
rsa_io_unmap(dev, edesc, req);
kfree(edesc);

- akcipher_request_complete(req, err);
+ akcipher_request_complete(req, ecode);
}

/**
diff --git a/drivers/crypto/caam/error.c b/drivers/crypto/caam/error.c
index 95da6ae..b7fbf1b 100644
--- a/drivers/crypto/caam/error.c
+++ b/drivers/crypto/caam/error.c
@@ -211,8 +211,8 @@ static const char * const rng_err_id_list[] = {
"Secure key generation",
};

-static void report_ccb_status(struct device *jrdev, const u32 status,
- const char *error)
+static int report_ccb_status(struct device *jrdev, const u32 status,
+ const char *error)
{
u8 cha_id = (status & JRSTA_CCBERR_CHAID_MASK) >>
JRSTA_CCBERR_CHAID_SHIFT;
@@ -248,22 +248,27 @@ static void report_ccb_status(struct device *jrdev, const u32 status,
* CCB ICV check failures are part of normal operation life;
* we leave the upper layers to do what they want with them.
*/
- if (err_id != JRSTA_CCBERR_ERRID_ICVCHK)
- dev_err(jrdev, "%08x: %s: %s %d: %s%s: %s%s\n",
- status, error, idx_str, idx,
- cha_str, cha_err_code,
- err_str, err_err_code);
+ if (err_id == JRSTA_CCBERR_ERRID_ICVCHK)
+ return -EBADMSG;
+
+ dev_err_ratelimited(jrdev, "%08x: %s: %s %d: %s%s: %s%s\n", status,
+ error, idx_str, idx, cha_str, cha_err_code,
+ err_str, err_err_code);
+
+ return -EINVAL;
}

-static void report_jump_status(struct device *jrdev, const u32 status,
- const char *error)
+static int report_jump_status(struct device *jrdev, const u32 status,
+ const char *error)
{
dev_err(jrdev, "%08x: %s: %s() not implemented\n",
status, error, __func__);
+
+ return -EINVAL;
}

-static void report_deco_status(struct device *jrdev, const u32 status,
- const char *error)
+static int report_deco_status(struct device *jrdev, const u32 status,
+ const char *error)
{
u8 err_id = status & JRSTA_DECOERR_ERROR_MASK;
u8 idx = (status & JRSTA_DECOERR_INDEX_MASK) >>
@@ -289,10 +294,12 @@ static void report_deco_status(struct device *jrdev, const u32 status,

dev_err(jrdev, "%08x: %s: %s %d: %s%s\n",
status, error, idx_str, idx, err_str, err_err_code);
+
+ return -EINVAL;
}

-static void report_qi_status(struct device *qidev, const u32 status,
- const char *error)
+static int report_qi_status(struct device *qidev, const u32 status,
+ const char *error)
{
u8 err_id = status & JRSTA_QIERR_ERROR_MASK;
const char *err_str = "unidentified error value 0x";
@@ -310,27 +317,33 @@ static void report_qi_status(struct device *qidev, const u32 status,

dev_err(qidev, "%08x: %s: %s%s\n",
status, error, err_str, err_err_code);
+
+ return -EINVAL;
}

-static void report_jr_status(struct device *jrdev, const u32 status,
- const char *error)
+static int report_jr_status(struct device *jrdev, const u32 status,
+ const char *error)
{
dev_err(jrdev, "%08x: %s: %s() not implemented\n",
status, error, __func__);
+
+ return -EINVAL;
}

-static void report_cond_code_status(struct device *jrdev, const u32 status,
- const char *error)
+static int report_cond_code_status(struct device *jrdev, const u32 status,
+ const char *error)
{
dev_err(jrdev, "%08x: %s: %s() not implemented\n",
status, error, __func__);
+
+ return -EINVAL;
}

-void caam_strstatus(struct device *jrdev, u32 status, bool qi_v2)
+int caam_strstatus(struct device *jrdev, u32 status, bool qi_v2)
{
static const struct stat_src {
- void (*report_ssed)(struct device *jrdev, const u32 status,
- const char *error);
+ int (*report_ssed)(struct device *jrdev, const u32 status,
+ const char *error);
const char *error;
} status_src[16] = {
{ NULL, "No error" },
@@ -358,11 +371,14 @@ void caam_strstatus(struct device *jrdev, u32 status, bool qi_v2)
* Otherwise print the error source name.
*/
if (status_src[ssrc].report_ssed)
- status_src[ssrc].report_ssed(jrdev, status, error);
- else if (error)
+ return status_src[ssrc].report_ssed(jrdev, status, error);
+
+ if (error)
dev_err(jrdev, "%d: %s\n", ssrc, error);
else
dev_err(jrdev, "%d: unknown error source\n", ssrc);
+
+ return -EINVAL;
}
EXPORT_SYMBOL(caam_strstatus);

diff --git a/drivers/crypto/caam/error.h b/drivers/crypto/caam/error.h
index d9726e6..16809fa 100644
--- a/drivers/crypto/caam/error.h
+++ b/drivers/crypto/caam/error.h
@@ -12,7 +12,7 @@

#define CAAM_ERROR_STR_MAX 302

-void caam_strstatus(struct device *dev, u32 status, bool qi_v2);
+int caam_strstatus(struct device *dev, u32 status, bool qi_v2);

#define caam_jr_strstatus(jrdev, status) caam_strstatus(jrdev, status, false)
#define caam_qi2_strstatus(qidev, status) caam_strstatus(qidev, status, true)
diff --git a/drivers/crypto/caam/key_gen.c b/drivers/crypto/caam/key_gen.c
index 48dd353..c6f8375 100644
--- a/drivers/crypto/caam/key_gen.c
+++ b/drivers/crypto/caam/key_gen.c
@@ -15,13 +15,14 @@ void split_key_done(struct device *dev, u32 *desc, u32 err,
void *context)
{
struct split_key_result *res = context;
+ int ecode = 0;

dev_dbg(dev, "%s %d: err 0x%x\n", __func__, __LINE__, err);

if (err)
- caam_jr_strstatus(dev, err);
+ ecode = caam_jr_strstatus(dev, err);

- res->err = err;
+ res->err = ecode;

complete(&res->completion);
}
diff --git a/drivers/crypto/caam/qi.c b/drivers/crypto/caam/qi.c
index 19a378b..378f627 100644
--- a/drivers/crypto/caam/qi.c
+++ b/drivers/crypto/caam/qi.c
@@ -577,8 +577,9 @@ static enum qman_cb_dqrr_result caam_rsp_fq_dqrr_cb(struct qman_portal *p,

if (ssrc != JRSTA_SSRC_CCB_ERROR ||
err_id != JRSTA_CCBERR_ERRID_ICVCHK)
- dev_err(qidev, "Error: %#x in CAAM response FD\n",
- status);
+ dev_err_ratelimited(qidev,
+ "Error: %#x in CAAM response FD\n",
+ status);
}

if (unlikely(qm_fd_get_format(fd) != qm_fd_compound)) {
--
2.1.0