1. Fix the following sparse/smatch warnings:
drivers/crypto/caam/ctrl.c:365:5: warning: symbol 'caam_get_era' was not declared. Should it be static?
drivers/crypto/caam/ctrl.c:372 caam_get_era() info: loop could be replaced with if statement.
drivers/crypto/caam/ctrl.c:368 caam_get_era() info: ignoring unreachable code.
drivers/crypto/caam/jr.c:68:5: warning: symbol 'caam_jr_shutdown' was not declared. Should it be static?
drivers/crypto/caam/jr.c:475:23: warning: incorrect type in assignment (different address spaces)
drivers/crypto/caam/jr.c:475:23: expected struct caam_job_ring [noderef] <asn:2>*rregs
drivers/crypto/caam/jr.c:475:23: got struct caam_job_ring *<noident>
drivers/crypto/caam/caamrng.c:343 caam_rng_init() error: no modifiers for allocation.
2. remove unreachable code in report_ccb_status
ERRID is a 4-bit field.
Since err_id values are in [0..15] and err_id_list array size is 16,
the condition "err_id < ARRAY_SIZE(err_id_list)" is always true.
3. remove unused / unneeded variables
4. remove precision loss warning - offset field in HW s/g table
5. replace offsetof with container_of
Signed-off-by: Horia Geanta <horia.geanta@xxxxxxxxxxxxx>
---
drivers/crypto/caam/caamalg.c | 59 ++++++++++++++++++----------------------
drivers/crypto/caam/caamhash.c | 12 +++-----
drivers/crypto/caam/caamrng.c | 2 +-
drivers/crypto/caam/ctrl.c | 8 ++++--
drivers/crypto/caam/error.c | 5 ++--
drivers/crypto/caam/jr.c | 4 +--
drivers/crypto/caam/sg_sw_sec4.h | 2 +-
7 files changed, 42 insertions(+), 50 deletions(-)
diff --git a/drivers/crypto/caam/caamalg.c b/drivers/crypto/caam/caamalg.c
index a80ea853701d..c3a845856cd0 100644
--- a/drivers/crypto/caam/caamalg.c
+++ b/drivers/crypto/caam/caamalg.c
@@ -925,8 +925,7 @@ static void aead_encrypt_done(struct device *jrdev, u32 *desc, u32 err,
dev_err(jrdev, "%s %d: err 0x%x\n", __func__, __LINE__, err);
#endif
- edesc = (struct aead_edesc *)((char *)desc -
- offsetof(struct aead_edesc, hw_desc));
+ edesc = container_of(desc, struct aead_edesc, hw_desc[0]);
if (err)
caam_jr_strstatus(jrdev, err);
@@ -964,8 +963,7 @@ static void aead_decrypt_done(struct device *jrdev, u32 *desc, u32 err,
dev_err(jrdev, "%s %d: err 0x%x\n", __func__, __LINE__, err);
#endif
- edesc = (struct aead_edesc *)((char *)desc -
- offsetof(struct aead_edesc, hw_desc));
+ edesc = container_of(desc, struct aead_edesc, hw_desc[0]);
#ifdef DEBUG
print_hex_dump(KERN_ERR, "dstiv @"__stringify(__LINE__)": ",
@@ -1019,8 +1017,7 @@ static void ablkcipher_encrypt_done(struct device *jrdev, u32 *desc, u32 err,
dev_err(jrdev, "%s %d: err 0x%x\n", __func__, __LINE__, err);
#endif
- edesc = (struct ablkcipher_edesc *)((char *)desc -
- offsetof(struct ablkcipher_edesc, hw_desc));
+ edesc = container_of(desc, struct ablkcipher_edesc, hw_desc[0]);
if (err)
caam_jr_strstatus(jrdev, err);
@@ -1052,8 +1049,7 @@ static void ablkcipher_decrypt_done(struct device *jrdev, u32 *desc, u32 err,
dev_err(jrdev, "%s %d: err 0x%x\n", __func__, __LINE__, err);
#endif
- edesc = (struct ablkcipher_edesc *)((char *)desc -
- offsetof(struct ablkcipher_edesc, hw_desc));
+ edesc = container_of(desc, struct ablkcipher_edesc, hw_desc[0]);
if (err)
caam_jr_strstatus(jrdev, err);
@@ -1286,7 +1282,6 @@ static struct aead_edesc *aead_edesc_alloc(struct aead_request *req,
int assoc_nents, src_nents, dst_nents = 0;
struct aead_edesc *edesc;
dma_addr_t iv_dma = 0;
- int sgc;
bool all_contig = true;
bool assoc_chained = false, src_chained = false, dst_chained = false;
int ivsize = crypto_aead_ivsize(aead);
@@ -1308,16 +1303,16 @@ static struct aead_edesc *aead_edesc_alloc(struct aead_request *req,
&src_chained);
}
- sgc = dma_map_sg_chained(jrdev, req->assoc, assoc_nents ? : 1,
- DMA_TO_DEVICE, assoc_chained);
+ dma_map_sg_chained(jrdev, req->assoc, assoc_nents ? : 1,
+ DMA_TO_DEVICE, assoc_chained);
if (likely(req->src == req->dst)) {
- sgc = dma_map_sg_chained(jrdev, req->src, src_nents ? : 1,
- DMA_BIDIRECTIONAL, src_chained);
+ dma_map_sg_chained(jrdev, req->src, src_nents ? : 1,
+ DMA_BIDIRECTIONAL, src_chained);
} else {
- sgc = dma_map_sg_chained(jrdev, req->src, src_nents ? : 1,
- DMA_TO_DEVICE, src_chained);
- sgc = dma_map_sg_chained(jrdev, req->dst, dst_nents ? : 1,
- DMA_FROM_DEVICE, dst_chained);
+ dma_map_sg_chained(jrdev, req->src, src_nents ? : 1,
+ DMA_TO_DEVICE, src_chained);
+ dma_map_sg_chained(jrdev, req->dst, dst_nents ? : 1,
+ DMA_FROM_DEVICE, dst_chained);
}
iv_dma = dma_map_single(jrdev, req->iv, ivsize, DMA_TO_DEVICE);
@@ -1485,7 +1480,6 @@ static struct aead_edesc *aead_giv_edesc_alloc(struct aead_givcrypt_request
int assoc_nents, src_nents, dst_nents = 0;
struct aead_edesc *edesc;
dma_addr_t iv_dma = 0;
- int sgc;
u32 contig = GIV_SRC_CONTIG | GIV_DST_CONTIG;
int ivsize = crypto_aead_ivsize(aead);
bool assoc_chained = false, src_chained = false, dst_chained = false;
@@ -1498,16 +1492,16 @@ static struct aead_edesc *aead_giv_edesc_alloc(struct aead_givcrypt_request
dst_nents = sg_count(req->dst, req->cryptlen + ctx->authsize,
&dst_chained);
- sgc = dma_map_sg_chained(jrdev, req->assoc, assoc_nents ? : 1,
- DMA_TO_DEVICE, assoc_chained);
+ dma_map_sg_chained(jrdev, req->assoc, assoc_nents ? : 1,
+ DMA_TO_DEVICE, assoc_chained);
if (likely(req->src == req->dst)) {
- sgc = dma_map_sg_chained(jrdev, req->src, src_nents ? : 1,
- DMA_BIDIRECTIONAL, src_chained);
+ dma_map_sg_chained(jrdev, req->src, src_nents ? : 1,
+ DMA_BIDIRECTIONAL, src_chained);
} else {
- sgc = dma_map_sg_chained(jrdev, req->src, src_nents ? : 1,
- DMA_TO_DEVICE, src_chained);
- sgc = dma_map_sg_chained(jrdev, req->dst, dst_nents ? : 1,
- DMA_FROM_DEVICE, dst_chained);
+ dma_map_sg_chained(jrdev, req->src, src_nents ? : 1,
+ DMA_TO_DEVICE, src_chained);
+ dma_map_sg_chained(jrdev, req->dst, dst_nents ? : 1,
+ DMA_FROM_DEVICE, dst_chained);
}
iv_dma = dma_map_single(jrdev, greq->giv, ivsize, DMA_TO_DEVICE);
@@ -1655,7 +1649,6 @@ static struct ablkcipher_edesc *ablkcipher_edesc_alloc(struct ablkcipher_request
struct ablkcipher_edesc *edesc;
dma_addr_t iv_dma = 0;
bool iv_contig = false;
- int sgc;
int ivsize = crypto_ablkcipher_ivsize(ablkcipher);
bool src_chained = false, dst_chained = false;
int sec4_sg_index;
@@ -1666,13 +1659,13 @@ static struct ablkcipher_edesc *ablkcipher_edesc_alloc(struct ablkcipher_request
dst_nents = sg_count(req->dst, req->nbytes, &dst_chained);
if (likely(req->src == req->dst)) {
- sgc = dma_map_sg_chained(jrdev, req->src, src_nents ? : 1,
- DMA_BIDIRECTIONAL, src_chained);
+ dma_map_sg_chained(jrdev, req->src, src_nents ? : 1,
+ DMA_BIDIRECTIONAL, src_chained);
} else {
- sgc = dma_map_sg_chained(jrdev, req->src, src_nents ? : 1,
- DMA_TO_DEVICE, src_chained);
- sgc = dma_map_sg_chained(jrdev, req->dst, dst_nents ? : 1,
- DMA_FROM_DEVICE, dst_chained);
+ dma_map_sg_chained(jrdev, req->src, src_nents ? : 1,
+ DMA_TO_DEVICE, src_chained);
+ dma_map_sg_chained(jrdev, req->dst, dst_nents ? : 1,
+ DMA_FROM_DEVICE, dst_chained);
}
iv_dma = dma_map_single(jrdev, req->info, ivsize, DMA_TO_DEVICE);
diff --git a/drivers/crypto/caam/caamhash.c b/drivers/crypto/caam/caamhash.c
index 56ec534337b3..386efb9e192c 100644
--- a/drivers/crypto/caam/caamhash.c
+++ b/drivers/crypto/caam/caamhash.c
@@ -640,8 +640,7 @@ static void ahash_done(struct device *jrdev, u32 *desc, u32 err,
dev_err(jrdev, "%s %d: err 0x%x\n", __func__, __LINE__, err);
#endif
- edesc = (struct ahash_edesc *)((char *)desc -
- offsetof(struct ahash_edesc, hw_desc));
+ edesc = container_of(desc, struct ahash_edesc, hw_desc[0]);
if (err)
caam_jr_strstatus(jrdev, err);
@@ -675,8 +674,7 @@ static void ahash_done_bi(struct device *jrdev, u32 *desc, u32 err,
dev_err(jrdev, "%s %d: err 0x%x\n", __func__, __LINE__, err);
#endif
- edesc = (struct ahash_edesc *)((char *)desc -
- offsetof(struct ahash_edesc, hw_desc));
+ edesc = container_of(desc, struct ahash_edesc, hw_desc[0]);
if (err)
caam_jr_strstatus(jrdev, err);
@@ -710,8 +708,7 @@ static void ahash_done_ctx_src(struct device *jrdev, u32 *desc, u32 err,
dev_err(jrdev, "%s %d: err 0x%x\n", __func__, __LINE__, err);
#endif
- edesc = (struct ahash_edesc *)((char *)desc -
- offsetof(struct ahash_edesc, hw_desc));
+ edesc = container_of(desc, struct ahash_edesc, hw_desc[0]);
if (err)
caam_jr_strstatus(jrdev, err);
@@ -745,8 +742,7 @@ static void ahash_done_ctx_dst(struct device *jrdev, u32 *desc, u32 err,
dev_err(jrdev, "%s %d: err 0x%x\n", __func__, __LINE__, err);
#endif
- edesc = (struct ahash_edesc *)((char *)desc -
- offsetof(struct ahash_edesc, hw_desc));
+ edesc = container_of(desc, struct ahash_edesc, hw_desc[0]);
if (err)
caam_jr_strstatus(jrdev, err);
diff --git a/drivers/crypto/caam/caamrng.c b/drivers/crypto/caam/caamrng.c
index 8b9df8deda67..5b288082e6ac 100644
--- a/drivers/crypto/caam/caamrng.c
+++ b/drivers/crypto/caam/caamrng.c
@@ -340,7 +340,7 @@ static int __init caam_rng_init(void)
pr_err("Job Ring Device allocation for transform failed\n");
return PTR_ERR(dev);
}
- rng_ctx = kmalloc(sizeof(struct caam_rng_ctx), GFP_DMA);
+ rng_ctx = kmalloc(sizeof(*rng_ctx), GFP_KERNEL | GFP_DMA);
if (!rng_ctx)
return -ENOMEM;
err = caam_init_rng(rng_ctx, dev);
diff --git a/drivers/crypto/caam/ctrl.c b/drivers/crypto/caam/ctrl.c
index cedb56500b61..be8c6c147395 100644
--- a/drivers/crypto/caam/ctrl.c
+++ b/drivers/crypto/caam/ctrl.c
@@ -15,6 +15,7 @@
#include "jr.h"
#include "desc_constr.h"
#include "error.h"
+#include "ctrl.h"
/*
* Descriptor to instantiate RNG State Handle 0 in normal mode and
@@ -209,7 +210,7 @@ static int instantiate_rng(struct device *ctrldev, int state_handle_mask,
* CAAM eras), then try again.
*/
rdsta_val =
- rd_reg32(&topregs->ctrl.r4tst[0].rdsta) & RDSTA_IFMASK;
+ rd_reg32(&r4tst->rdsta) & RDSTA_IFMASK;
if (status || !(rdsta_val & (1 << sh_idx)))
ret = -EAGAIN;
if (ret)
@@ -365,10 +366,13 @@ static void kick_trng(struct platform_device *pdev, int ent_delay)
int caam_get_era(void)
{
struct device_node *caam_node;
- for_each_compatible_node(caam_node, NULL, "fsl,sec-v4.0") {
+
+ caam_node = of_find_compatible_node(NULL, NULL, "fsl,sec-v4.0");
+ if (caam_node) {
const uint32_t *prop = (uint32_t *)of_get_property(caam_node,
"fsl,sec-era",
NULL);
+ of_node_put(caam_node);
return prop ? *prop : -ENOTSUPP;
}
diff --git a/drivers/crypto/caam/error.c b/drivers/crypto/caam/error.c
index 6531054a44c8..7d6ed4722345 100644
--- a/drivers/crypto/caam/error.c
+++ b/drivers/crypto/caam/error.c
@@ -146,10 +146,9 @@ static void report_ccb_status(struct device *jrdev, const u32 status,
strlen(rng_err_id_list[err_id])) {
/* RNG-only error */
err_str = rng_err_id_list[err_id];
- } else if (err_id < ARRAY_SIZE(err_id_list))
+ } else {
err_str = err_id_list[err_id];
- else
- snprintf(err_err_code, sizeof(err_err_code), "%02x", err_id);
+ }
dev_err(jrdev, "%08x: %s: %s %d: %s%s: %s%s\n",
status, error, idx_str, idx,
diff --git a/drivers/crypto/caam/jr.c b/drivers/crypto/caam/jr.c
index 50cd1b9af2ba..ec3652d62e93 100644
--- a/drivers/crypto/caam/jr.c
+++ b/drivers/crypto/caam/jr.c
@@ -65,7 +65,7 @@ static int caam_reset_hw_jr(struct device *dev)
/*
* Shutdown JobR independent of platform property code
*/
-int caam_jr_shutdown(struct device *dev)
+static int caam_jr_shutdown(struct device *dev)
{
struct caam_drv_private_jr *jrp = dev_get_drvdata(dev);
dma_addr_t inpbusaddr, outbusaddr;
@@ -472,7 +472,7 @@ static int caam_jr_probe(struct platform_device *pdev)
return -ENOMEM;
}
- jrpriv->rregs = (struct caam_job_ring __force *)ctrl;
+ jrpriv->rregs = (struct caam_job_ring __iomem __force *)ctrl;
if (sizeof(dma_addr_t) == sizeof(u64))
if (of_device_is_compatible(nprop, "fsl,sec-v5.0-job-ring"))
diff --git a/drivers/crypto/caam/sg_sw_sec4.h b/drivers/crypto/caam/sg_sw_sec4.h
index b12ff85f4241..a6e5b94756d4 100644
--- a/drivers/crypto/caam/sg_sw_sec4.h
+++ b/drivers/crypto/caam/sg_sw_sec4.h
@@ -17,7 +17,7 @@ static inline void dma_to_sec4_sg_one(struct sec4_sg_entry *sec4_sg_ptr,
sec4_sg_ptr->len = len;
sec4_sg_ptr->reserved = 0;
sec4_sg_ptr->buf_pool_id = 0;
- sec4_sg_ptr->offset = offset;
+ sec4_sg_ptr->offset = (u16)offset;
#ifdef DEBUG
print_hex_dump(KERN_ERR, "sec4_sg_ptr@: ",
DUMP_PREFIX_ADDRESS, 16, 4, sec4_sg_ptr,
--
1.8.3.1
--
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