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path: root/drivers/crypto/talitos.c
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Diffstat (limited to 'drivers/crypto/talitos.c')
-rw-r--r--drivers/crypto/talitos.c620
1 files changed, 288 insertions, 332 deletions
diff --git a/drivers/crypto/talitos.c b/drivers/crypto/talitos.c
index 83aca95a9..3b20a1bce 100644
--- a/drivers/crypto/talitos.c
+++ b/drivers/crypto/talitos.c
@@ -766,6 +766,7 @@ static int talitos_rng_init(struct hwrng *rng)
static int talitos_register_rng(struct device *dev)
{
struct talitos_private *priv = dev_get_drvdata(dev);
+ int err;
priv->rng.name = dev_driver_string(dev),
priv->rng.init = talitos_rng_init,
@@ -773,14 +774,22 @@ static int talitos_register_rng(struct device *dev)
priv->rng.data_read = talitos_rng_data_read,
priv->rng.priv = (unsigned long)dev;
- return hwrng_register(&priv->rng);
+ err = hwrng_register(&priv->rng);
+ if (!err)
+ priv->rng_registered = true;
+
+ return err;
}
static void talitos_unregister_rng(struct device *dev)
{
struct talitos_private *priv = dev_get_drvdata(dev);
+ if (!priv->rng_registered)
+ return;
+
hwrng_unregister(&priv->rng);
+ priv->rng_registered = false;
}
/*
@@ -799,7 +808,6 @@ struct talitos_ctx {
unsigned int keylen;
unsigned int enckeylen;
unsigned int authkeylen;
- unsigned int authsize;
};
#define HASH_MAX_BLOCK_SIZE SHA512_BLOCK_SIZE
@@ -819,16 +827,6 @@ struct talitos_ahash_req_ctx {
struct scatterlist *psrc;
};
-static int aead_setauthsize(struct crypto_aead *authenc,
- unsigned int authsize)
-{
- struct talitos_ctx *ctx = crypto_aead_ctx(authenc);
-
- ctx->authsize = authsize;
-
- return 0;
-}
-
static int aead_setkey(struct crypto_aead *authenc,
const u8 *key, unsigned int keylen)
{
@@ -857,12 +855,11 @@ badkey:
/*
* talitos_edesc - s/w-extended descriptor
- * @assoc_nents: number of segments in associated data scatterlist
* @src_nents: number of segments in input scatterlist
* @dst_nents: number of segments in output scatterlist
- * @assoc_chained: whether assoc is chained or not
* @src_chained: whether src is chained or not
* @dst_chained: whether dst is chained or not
+ * @icv_ool: whether ICV is out-of-line
* @iv_dma: dma address of iv for checking continuity and link table
* @dma_len: length of dma mapped link_tbl space
* @dma_link_tbl: bus physical address of link_tbl/buf
@@ -875,12 +872,11 @@ badkey:
* of link_tbl data
*/
struct talitos_edesc {
- int assoc_nents;
int src_nents;
int dst_nents;
- bool assoc_chained;
bool src_chained;
bool dst_chained;
+ bool icv_ool;
dma_addr_t iv_dma;
int dma_len;
dma_addr_t dma_link_tbl;
@@ -952,14 +948,6 @@ static void ipsec_esp_unmap(struct device *dev,
unmap_single_talitos_ptr(dev, &edesc->desc.ptr[2], DMA_TO_DEVICE);
unmap_single_talitos_ptr(dev, &edesc->desc.ptr[0], DMA_TO_DEVICE);
- if (edesc->assoc_chained)
- talitos_unmap_sg_chain(dev, areq->assoc, DMA_TO_DEVICE);
- else if (areq->assoclen)
- /* assoc_nents counts also for IV in non-contiguous cases */
- dma_unmap_sg(dev, areq->assoc,
- edesc->assoc_nents ? edesc->assoc_nents - 1 : 1,
- DMA_TO_DEVICE);
-
talitos_sg_unmap(dev, edesc, areq->src, areq->dst);
if (edesc->dma_len)
@@ -976,7 +964,7 @@ static void ipsec_esp_encrypt_done(struct device *dev,
{
struct aead_request *areq = context;
struct crypto_aead *authenc = crypto_aead_reqtfm(areq);
- struct talitos_ctx *ctx = crypto_aead_ctx(authenc);
+ unsigned int authsize = crypto_aead_authsize(authenc);
struct talitos_edesc *edesc;
struct scatterlist *sg;
void *icvdata;
@@ -986,13 +974,12 @@ static void ipsec_esp_encrypt_done(struct device *dev,
ipsec_esp_unmap(dev, edesc, areq);
/* copy the generated ICV to dst */
- if (edesc->dst_nents) {
+ if (edesc->icv_ool) {
icvdata = &edesc->link_tbl[edesc->src_nents +
- edesc->dst_nents + 2 +
- edesc->assoc_nents];
+ edesc->dst_nents + 2];
sg = sg_last(areq->dst, edesc->dst_nents);
- memcpy((char *)sg_virt(sg) + sg->length - ctx->authsize,
- icvdata, ctx->authsize);
+ memcpy((char *)sg_virt(sg) + sg->length - authsize,
+ icvdata, authsize);
}
kfree(edesc);
@@ -1006,10 +993,10 @@ static void ipsec_esp_decrypt_swauth_done(struct device *dev,
{
struct aead_request *req = context;
struct crypto_aead *authenc = crypto_aead_reqtfm(req);
- struct talitos_ctx *ctx = crypto_aead_ctx(authenc);
+ unsigned int authsize = crypto_aead_authsize(authenc);
struct talitos_edesc *edesc;
struct scatterlist *sg;
- void *icvdata;
+ char *oicv, *icv;
edesc = container_of(desc, struct talitos_edesc, desc);
@@ -1017,16 +1004,18 @@ static void ipsec_esp_decrypt_swauth_done(struct device *dev,
if (!err) {
/* auth check */
- if (edesc->dma_len)
- icvdata = &edesc->link_tbl[edesc->src_nents +
- edesc->dst_nents + 2 +
- edesc->assoc_nents];
- else
- icvdata = &edesc->link_tbl[0];
-
sg = sg_last(req->dst, edesc->dst_nents ? : 1);
- err = memcmp(icvdata, (char *)sg_virt(sg) + sg->length -
- ctx->authsize, ctx->authsize) ? -EBADMSG : 0;
+ icv = (char *)sg_virt(sg) + sg->length - authsize;
+
+ if (edesc->dma_len) {
+ oicv = (char *)&edesc->link_tbl[edesc->src_nents +
+ edesc->dst_nents + 2];
+ if (edesc->icv_ool)
+ icv = oicv + authsize;
+ } else
+ oicv = (char *)&edesc->link_tbl[0];
+
+ err = memcmp(oicv, icv, authsize) ? -EBADMSG : 0;
}
kfree(edesc);
@@ -1059,53 +1048,69 @@ static void ipsec_esp_decrypt_hwauth_done(struct device *dev,
* convert scatterlist to SEC h/w link table format
* stop at cryptlen bytes
*/
-static int sg_to_link_tbl(struct scatterlist *sg, int sg_count,
- int cryptlen, struct talitos_ptr *link_tbl_ptr)
+static int sg_to_link_tbl_offset(struct scatterlist *sg, int sg_count,
+ unsigned int offset, int cryptlen,
+ struct talitos_ptr *link_tbl_ptr)
{
int n_sg = sg_count;
+ int count = 0;
- while (sg && n_sg--) {
- to_talitos_ptr(link_tbl_ptr, sg_dma_address(sg), 0);
- link_tbl_ptr->len = cpu_to_be16(sg_dma_len(sg));
- link_tbl_ptr->j_extent = 0;
- link_tbl_ptr++;
- cryptlen -= sg_dma_len(sg);
- sg = sg_next(sg);
- }
+ while (cryptlen && sg && n_sg--) {
+ unsigned int len = sg_dma_len(sg);
+
+ if (offset >= len) {
+ offset -= len;
+ goto next;
+ }
+
+ len -= offset;
+
+ if (len > cryptlen)
+ len = cryptlen;
- /* adjust (decrease) last one (or two) entry's len to cryptlen */
- link_tbl_ptr--;
- while (be16_to_cpu(link_tbl_ptr->len) <= (-cryptlen)) {
- /* Empty this entry, and move to previous one */
- cryptlen += be16_to_cpu(link_tbl_ptr->len);
- link_tbl_ptr->len = 0;
- sg_count--;
- link_tbl_ptr--;
+ to_talitos_ptr(link_tbl_ptr + count,
+ sg_dma_address(sg) + offset, 0);
+ link_tbl_ptr[count].len = cpu_to_be16(len);
+ link_tbl_ptr[count].j_extent = 0;
+ count++;
+ cryptlen -= len;
+ offset = 0;
+
+next:
+ sg = sg_next(sg);
}
- link_tbl_ptr->len = cpu_to_be16(be16_to_cpu(link_tbl_ptr->len)
- + cryptlen);
/* tag end of link table */
- link_tbl_ptr->j_extent = DESC_PTR_LNKTBL_RETURN;
+ if (count > 0)
+ link_tbl_ptr[count - 1].j_extent = DESC_PTR_LNKTBL_RETURN;
- return sg_count;
+ return count;
+}
+
+static inline int sg_to_link_tbl(struct scatterlist *sg, int sg_count,
+ int cryptlen,
+ struct talitos_ptr *link_tbl_ptr)
+{
+ return sg_to_link_tbl_offset(sg, sg_count, 0, cryptlen,
+ link_tbl_ptr);
}
/*
* fill in and submit ipsec_esp descriptor
*/
static int ipsec_esp(struct talitos_edesc *edesc, struct aead_request *areq,
- u64 seq, void (*callback) (struct device *dev,
- struct talitos_desc *desc,
- void *context, int error))
+ void (*callback)(struct device *dev,
+ struct talitos_desc *desc,
+ void *context, int error))
{
struct crypto_aead *aead = crypto_aead_reqtfm(areq);
+ unsigned int authsize = crypto_aead_authsize(aead);
struct talitos_ctx *ctx = crypto_aead_ctx(aead);
struct device *dev = ctx->dev;
struct talitos_desc *desc = &edesc->desc;
unsigned int cryptlen = areq->cryptlen;
- unsigned int authsize = ctx->authsize;
unsigned int ivsize = crypto_aead_ivsize(aead);
+ int tbl_off = 0;
int sg_count, ret;
int sg_link_tbl_len;
@@ -1113,36 +1118,27 @@ static int ipsec_esp(struct talitos_edesc *edesc, struct aead_request *areq,
map_single_talitos_ptr(dev, &desc->ptr[0], ctx->authkeylen, &ctx->key,
DMA_TO_DEVICE);
+ sg_count = talitos_map_sg(dev, areq->src, edesc->src_nents ?: 1,
+ (areq->src == areq->dst) ? DMA_BIDIRECTIONAL
+ : DMA_TO_DEVICE,
+ edesc->src_chained);
+
/* hmac data */
- desc->ptr[1].len = cpu_to_be16(areq->assoclen + ivsize);
- if (edesc->assoc_nents) {
- int tbl_off = edesc->src_nents + edesc->dst_nents + 2;
- struct talitos_ptr *tbl_ptr = &edesc->link_tbl[tbl_off];
+ desc->ptr[1].len = cpu_to_be16(areq->assoclen);
+ if (sg_count > 1 &&
+ (ret = sg_to_link_tbl_offset(areq->src, sg_count, 0,
+ areq->assoclen,
+ &edesc->link_tbl[tbl_off])) > 1) {
+ tbl_off += ret;
to_talitos_ptr(&desc->ptr[1], edesc->dma_link_tbl + tbl_off *
sizeof(struct talitos_ptr), 0);
desc->ptr[1].j_extent = DESC_PTR_LNKTBL_JUMP;
- /* assoc_nents - 1 entries for assoc, 1 for IV */
- sg_count = sg_to_link_tbl(areq->assoc, edesc->assoc_nents - 1,
- areq->assoclen, tbl_ptr);
-
- /* add IV to link table */
- tbl_ptr += sg_count - 1;
- tbl_ptr->j_extent = 0;
- tbl_ptr++;
- to_talitos_ptr(tbl_ptr, edesc->iv_dma, 0);
- tbl_ptr->len = cpu_to_be16(ivsize);
- tbl_ptr->j_extent = DESC_PTR_LNKTBL_RETURN;
-
dma_sync_single_for_device(dev, edesc->dma_link_tbl,
edesc->dma_len, DMA_BIDIRECTIONAL);
} else {
- if (areq->assoclen)
- to_talitos_ptr(&desc->ptr[1],
- sg_dma_address(areq->assoc), 0);
- else
- to_talitos_ptr(&desc->ptr[1], edesc->iv_dma, 0);
+ to_talitos_ptr(&desc->ptr[1], sg_dma_address(areq->src), 0);
desc->ptr[1].j_extent = 0;
}
@@ -1150,8 +1146,6 @@ static int ipsec_esp(struct talitos_edesc *edesc, struct aead_request *areq,
to_talitos_ptr(&desc->ptr[2], edesc->iv_dma, 0);
desc->ptr[2].len = cpu_to_be16(ivsize);
desc->ptr[2].j_extent = 0;
- /* Sync needed for the aead_givencrypt case */
- dma_sync_single_for_device(dev, edesc->iv_dma, ivsize, DMA_TO_DEVICE);
/* cipher key */
map_single_talitos_ptr(dev, &desc->ptr[3], ctx->enckeylen,
@@ -1167,33 +1161,24 @@ static int ipsec_esp(struct talitos_edesc *edesc, struct aead_request *areq,
desc->ptr[4].len = cpu_to_be16(cryptlen);
desc->ptr[4].j_extent = authsize;
- sg_count = talitos_map_sg(dev, areq->src, edesc->src_nents ? : 1,
- (areq->src == areq->dst) ? DMA_BIDIRECTIONAL
- : DMA_TO_DEVICE,
- edesc->src_chained);
-
- if (sg_count == 1) {
+ sg_link_tbl_len = cryptlen;
+ if (edesc->desc.hdr & DESC_HDR_MODE1_MDEU_CICV)
+ sg_link_tbl_len += authsize;
+
+ if (sg_count > 1 &&
+ (ret = sg_to_link_tbl_offset(areq->src, sg_count, areq->assoclen,
+ sg_link_tbl_len,
+ &edesc->link_tbl[tbl_off])) > 1) {
+ tbl_off += ret;
+ desc->ptr[4].j_extent |= DESC_PTR_LNKTBL_JUMP;
+ to_talitos_ptr(&desc->ptr[4], edesc->dma_link_tbl +
+ tbl_off *
+ sizeof(struct talitos_ptr), 0);
+ dma_sync_single_for_device(dev, edesc->dma_link_tbl,
+ edesc->dma_len,
+ DMA_BIDIRECTIONAL);
+ } else
to_talitos_ptr(&desc->ptr[4], sg_dma_address(areq->src), 0);
- } else {
- sg_link_tbl_len = cryptlen;
-
- if (edesc->desc.hdr & DESC_HDR_MODE1_MDEU_CICV)
- sg_link_tbl_len = cryptlen + authsize;
-
- sg_count = sg_to_link_tbl(areq->src, sg_count, sg_link_tbl_len,
- &edesc->link_tbl[0]);
- if (sg_count > 1) {
- desc->ptr[4].j_extent |= DESC_PTR_LNKTBL_JUMP;
- to_talitos_ptr(&desc->ptr[4], edesc->dma_link_tbl, 0);
- dma_sync_single_for_device(dev, edesc->dma_link_tbl,
- edesc->dma_len,
- DMA_BIDIRECTIONAL);
- } else {
- /* Only one segment now, so no link tbl needed */
- to_talitos_ptr(&desc->ptr[4],
- sg_dma_address(areq->src), 0);
- }
- }
/* cipher out */
desc->ptr[5].len = cpu_to_be16(cryptlen);
@@ -1204,16 +1189,17 @@ static int ipsec_esp(struct talitos_edesc *edesc, struct aead_request *areq,
edesc->dst_nents ? : 1,
DMA_FROM_DEVICE, edesc->dst_chained);
- if (sg_count == 1) {
- to_talitos_ptr(&desc->ptr[5], sg_dma_address(areq->dst), 0);
- } else {
- int tbl_off = edesc->src_nents + 1;
+ edesc->icv_ool = false;
+
+ if (sg_count > 1 &&
+ (sg_count = sg_to_link_tbl_offset(areq->dst, sg_count,
+ areq->assoclen, cryptlen,
+ &edesc->link_tbl[tbl_off])) >
+ 1) {
struct talitos_ptr *tbl_ptr = &edesc->link_tbl[tbl_off];
to_talitos_ptr(&desc->ptr[5], edesc->dma_link_tbl +
tbl_off * sizeof(struct talitos_ptr), 0);
- sg_count = sg_to_link_tbl(areq->dst, sg_count, cryptlen,
- tbl_ptr);
/* Add an entry to the link table for ICV data */
tbl_ptr += sg_count - 1;
@@ -1224,13 +1210,16 @@ static int ipsec_esp(struct talitos_edesc *edesc, struct aead_request *areq,
/* icv data follows link tables */
to_talitos_ptr(tbl_ptr, edesc->dma_link_tbl +
- (tbl_off + edesc->dst_nents + 1 +
- edesc->assoc_nents) *
- sizeof(struct talitos_ptr), 0);
+ (edesc->src_nents + edesc->dst_nents +
+ 2) * sizeof(struct talitos_ptr) +
+ authsize, 0);
desc->ptr[5].j_extent |= DESC_PTR_LNKTBL_JUMP;
dma_sync_single_for_device(ctx->dev, edesc->dma_link_tbl,
edesc->dma_len, DMA_BIDIRECTIONAL);
- }
+
+ edesc->icv_ool = true;
+ } else
+ to_talitos_ptr(&desc->ptr[5], sg_dma_address(areq->dst), 0);
/* iv out */
map_single_talitos_ptr(dev, &desc->ptr[6], ivsize, ctx->iv,
@@ -1268,7 +1257,6 @@ static int sg_count(struct scatterlist *sg_list, int nbytes, bool *chained)
* allocate and map the extended descriptor
*/
static struct talitos_edesc *talitos_edesc_alloc(struct device *dev,
- struct scatterlist *assoc,
struct scatterlist *src,
struct scatterlist *dst,
u8 *iv,
@@ -1281,8 +1269,8 @@ static struct talitos_edesc *talitos_edesc_alloc(struct device *dev,
bool encrypt)
{
struct talitos_edesc *edesc;
- int assoc_nents = 0, src_nents, dst_nents, alloc_len, dma_len;
- bool assoc_chained = false, src_chained = false, dst_chained = false;
+ int src_nents, dst_nents, alloc_len, dma_len;
+ bool src_chained = false, dst_chained = false;
dma_addr_t iv_dma = 0;
gfp_t flags = cryptoflags & CRYPTO_TFM_REQ_MAY_SLEEP ? GFP_KERNEL :
GFP_ATOMIC;
@@ -1298,48 +1286,35 @@ static struct talitos_edesc *talitos_edesc_alloc(struct device *dev,
if (ivsize)
iv_dma = dma_map_single(dev, iv, ivsize, DMA_TO_DEVICE);
- if (assoclen) {
- /*
- * Currently it is assumed that iv is provided whenever assoc
- * is.
- */
- BUG_ON(!iv);
-
- assoc_nents = sg_count(assoc, assoclen, &assoc_chained);
- talitos_map_sg(dev, assoc, assoc_nents, DMA_TO_DEVICE,
- assoc_chained);
- assoc_nents = (assoc_nents == 1) ? 0 : assoc_nents;
-
- if (assoc_nents || sg_dma_address(assoc) + assoclen != iv_dma)
- assoc_nents = assoc_nents ? assoc_nents + 1 : 2;
- }
-
if (!dst || dst == src) {
- src_nents = sg_count(src, cryptlen + authsize, &src_chained);
+ src_nents = sg_count(src, assoclen + cryptlen + authsize,
+ &src_chained);
src_nents = (src_nents == 1) ? 0 : src_nents;
dst_nents = dst ? src_nents : 0;
} else { /* dst && dst != src*/
- src_nents = sg_count(src, cryptlen + (encrypt ? 0 : authsize),
+ src_nents = sg_count(src, assoclen + cryptlen +
+ (encrypt ? 0 : authsize),
&src_chained);
src_nents = (src_nents == 1) ? 0 : src_nents;
- dst_nents = sg_count(dst, cryptlen + (encrypt ? authsize : 0),
+ dst_nents = sg_count(dst, assoclen + cryptlen +
+ (encrypt ? authsize : 0),
&dst_chained);
dst_nents = (dst_nents == 1) ? 0 : dst_nents;
}
/*
* allocate space for base edesc plus the link tables,
- * allowing for two separate entries for ICV and generated ICV (+ 2),
- * and the ICV data itself
+ * allowing for two separate entries for AD and generated ICV (+ 2),
+ * and space for two sets of ICVs (stashed and generated)
*/
alloc_len = sizeof(struct talitos_edesc);
- if (assoc_nents || src_nents || dst_nents) {
+ if (src_nents || dst_nents) {
if (is_sec1)
dma_len = (src_nents ? cryptlen : 0) +
(dst_nents ? cryptlen : 0);
else
- dma_len = (src_nents + dst_nents + 2 + assoc_nents) *
- sizeof(struct talitos_ptr) + authsize;
+ dma_len = (src_nents + dst_nents + 2) *
+ sizeof(struct talitos_ptr) + authsize * 2;
alloc_len += dma_len;
} else {
dma_len = 0;
@@ -1348,13 +1323,6 @@ static struct talitos_edesc *talitos_edesc_alloc(struct device *dev,
edesc = kmalloc(alloc_len, GFP_DMA | flags);
if (!edesc) {
- if (assoc_chained)
- talitos_unmap_sg_chain(dev, assoc, DMA_TO_DEVICE);
- else if (assoclen)
- dma_unmap_sg(dev, assoc,
- assoc_nents ? assoc_nents - 1 : 1,
- DMA_TO_DEVICE);
-
if (iv_dma)
dma_unmap_single(dev, iv_dma, ivsize, DMA_TO_DEVICE);
@@ -1362,10 +1330,8 @@ static struct talitos_edesc *talitos_edesc_alloc(struct device *dev,
return ERR_PTR(-ENOMEM);
}
- edesc->assoc_nents = assoc_nents;
edesc->src_nents = src_nents;
edesc->dst_nents = dst_nents;
- edesc->assoc_chained = assoc_chained;
edesc->src_chained = src_chained;
edesc->dst_chained = dst_chained;
edesc->iv_dma = iv_dma;
@@ -1382,12 +1348,13 @@ static struct talitos_edesc *aead_edesc_alloc(struct aead_request *areq, u8 *iv,
int icv_stashing, bool encrypt)
{
struct crypto_aead *authenc = crypto_aead_reqtfm(areq);
+ unsigned int authsize = crypto_aead_authsize(authenc);
struct talitos_ctx *ctx = crypto_aead_ctx(authenc);
unsigned int ivsize = crypto_aead_ivsize(authenc);
- return talitos_edesc_alloc(ctx->dev, areq->assoc, areq->src, areq->dst,
+ return talitos_edesc_alloc(ctx->dev, areq->src, areq->dst,
iv, areq->assoclen, areq->cryptlen,
- ctx->authsize, ivsize, icv_stashing,
+ authsize, ivsize, icv_stashing,
areq->base.flags, encrypt);
}
@@ -1405,14 +1372,14 @@ static int aead_encrypt(struct aead_request *req)
/* set encrypt */
edesc->desc.hdr = ctx->desc_hdr_template | DESC_HDR_MODE0_ENCRYPT;
- return ipsec_esp(edesc, req, 0, ipsec_esp_encrypt_done);
+ return ipsec_esp(edesc, req, ipsec_esp_encrypt_done);
}
static int aead_decrypt(struct aead_request *req)
{
struct crypto_aead *authenc = crypto_aead_reqtfm(req);
+ unsigned int authsize = crypto_aead_authsize(authenc);
struct talitos_ctx *ctx = crypto_aead_ctx(authenc);
- unsigned int authsize = ctx->authsize;
struct talitos_private *priv = dev_get_drvdata(ctx->dev);
struct talitos_edesc *edesc;
struct scatterlist *sg;
@@ -1437,7 +1404,7 @@ static int aead_decrypt(struct aead_request *req)
/* reset integrity check result bits */
edesc->desc.hdr_lo = 0;
- return ipsec_esp(edesc, req, 0, ipsec_esp_decrypt_hwauth_done);
+ return ipsec_esp(edesc, req, ipsec_esp_decrypt_hwauth_done);
}
/* Have to check the ICV with software */
@@ -1445,40 +1412,16 @@ static int aead_decrypt(struct aead_request *req)
/* stash incoming ICV for later cmp with ICV generated by the h/w */
if (edesc->dma_len)
- icvdata = &edesc->link_tbl[edesc->src_nents +
- edesc->dst_nents + 2 +
- edesc->assoc_nents];
+ icvdata = (char *)&edesc->link_tbl[edesc->src_nents +
+ edesc->dst_nents + 2];
else
icvdata = &edesc->link_tbl[0];
sg = sg_last(req->src, edesc->src_nents ? : 1);
- memcpy(icvdata, (char *)sg_virt(sg) + sg->length - ctx->authsize,
- ctx->authsize);
+ memcpy(icvdata, (char *)sg_virt(sg) + sg->length - authsize, authsize);
- return ipsec_esp(edesc, req, 0, ipsec_esp_decrypt_swauth_done);
-}
-
-static int aead_givencrypt(struct aead_givcrypt_request *req)
-{
- struct aead_request *areq = &req->areq;
- struct crypto_aead *authenc = crypto_aead_reqtfm(areq);
- struct talitos_ctx *ctx = crypto_aead_ctx(authenc);
- struct talitos_edesc *edesc;
-
- /* allocate extended descriptor */
- edesc = aead_edesc_alloc(areq, req->giv, 0, true);
- if (IS_ERR(edesc))
- return PTR_ERR(edesc);
-
- /* set encrypt */
- edesc->desc.hdr = ctx->desc_hdr_template | DESC_HDR_MODE0_ENCRYPT;
-
- memcpy(req->giv, ctx->iv, crypto_aead_ivsize(authenc));
- /* avoid consecutive packets going out with same IV */
- *(__be64 *)req->giv ^= cpu_to_be64(req->seq);
-
- return ipsec_esp(edesc, areq, req->seq, ipsec_esp_encrypt_done);
+ return ipsec_esp(edesc, req, ipsec_esp_decrypt_swauth_done);
}
static int ablkcipher_setkey(struct crypto_ablkcipher *cipher,
@@ -1710,7 +1653,7 @@ static struct talitos_edesc *ablkcipher_edesc_alloc(struct ablkcipher_request *
struct talitos_ctx *ctx = crypto_ablkcipher_ctx(cipher);
unsigned int ivsize = crypto_ablkcipher_ivsize(cipher);
- return talitos_edesc_alloc(ctx->dev, NULL, areq->src, areq->dst,
+ return talitos_edesc_alloc(ctx->dev, areq->src, areq->dst,
areq->info, 0, areq->nbytes, 0, ivsize, 0,
areq->base.flags, encrypt);
}
@@ -1895,7 +1838,7 @@ static struct talitos_edesc *ahash_edesc_alloc(struct ahash_request *areq,
struct talitos_ctx *ctx = crypto_ahash_ctx(tfm);
struct talitos_ahash_req_ctx *req_ctx = ahash_request_ctx(areq);
- return talitos_edesc_alloc(ctx->dev, NULL, req_ctx->psrc, NULL, NULL, 0,
+ return talitos_edesc_alloc(ctx->dev, req_ctx->psrc, NULL, NULL, 0,
nbytes, 0, 0, 0, areq->base.flags, false);
}
@@ -1986,7 +1929,7 @@ static int ahash_process_req(struct ahash_request *areq, unsigned int nbytes)
sg_init_table(req_ctx->bufsl, nsg);
sg_set_buf(req_ctx->bufsl, req_ctx->buf, req_ctx->nbuf);
if (nsg > 1)
- scatterwalk_sg_chain(req_ctx->bufsl, 2, areq->src);
+ sg_chain(req_ctx->bufsl, 2, areq->src);
req_ctx->psrc = req_ctx->bufsl;
} else
req_ctx->psrc = areq->src;
@@ -2161,6 +2104,7 @@ struct talitos_alg_template {
union {
struct crypto_alg crypto;
struct ahash_alg hash;
+ struct aead_alg aead;
} alg;
__be32 desc_hdr_template;
};
@@ -2168,15 +2112,16 @@ struct talitos_alg_template {
static struct talitos_alg_template driver_algs[] = {
/* AEAD algorithms. These use a single-pass ipsec_esp descriptor */
{ .type = CRYPTO_ALG_TYPE_AEAD,
- .alg.crypto = {
- .cra_name = "authenc(hmac(sha1),cbc(aes))",
- .cra_driver_name = "authenc-hmac-sha1-cbc-aes-talitos",
- .cra_blocksize = AES_BLOCK_SIZE,
- .cra_flags = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_ASYNC,
- .cra_aead = {
- .ivsize = AES_BLOCK_SIZE,
- .maxauthsize = SHA1_DIGEST_SIZE,
- }
+ .alg.aead = {
+ .base = {
+ .cra_name = "authenc(hmac(sha1),cbc(aes))",
+ .cra_driver_name = "authenc-hmac-sha1-"
+ "cbc-aes-talitos",
+ .cra_blocksize = AES_BLOCK_SIZE,
+ .cra_flags = CRYPTO_ALG_ASYNC,
+ },
+ .ivsize = AES_BLOCK_SIZE,
+ .maxauthsize = SHA1_DIGEST_SIZE,
},
.desc_hdr_template = DESC_HDR_TYPE_IPSEC_ESP |
DESC_HDR_SEL0_AESU |
@@ -2187,15 +2132,17 @@ static struct talitos_alg_template driver_algs[] = {
DESC_HDR_MODE1_MDEU_SHA1_HMAC,
},
{ .type = CRYPTO_ALG_TYPE_AEAD,
- .alg.crypto = {
- .cra_name = "authenc(hmac(sha1),cbc(des3_ede))",
- .cra_driver_name = "authenc-hmac-sha1-cbc-3des-talitos",
- .cra_blocksize = DES3_EDE_BLOCK_SIZE,
- .cra_flags = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_ASYNC,
- .cra_aead = {
- .ivsize = DES3_EDE_BLOCK_SIZE,
- .maxauthsize = SHA1_DIGEST_SIZE,
- }
+ .alg.aead = {
+ .base = {
+ .cra_name = "authenc(hmac(sha1),"
+ "cbc(des3_ede))",
+ .cra_driver_name = "authenc-hmac-sha1-"
+ "cbc-3des-talitos",
+ .cra_blocksize = DES3_EDE_BLOCK_SIZE,
+ .cra_flags = CRYPTO_ALG_ASYNC,
+ },
+ .ivsize = DES3_EDE_BLOCK_SIZE,
+ .maxauthsize = SHA1_DIGEST_SIZE,
},
.desc_hdr_template = DESC_HDR_TYPE_IPSEC_ESP |
DESC_HDR_SEL0_DEU |
@@ -2207,15 +2154,16 @@ static struct talitos_alg_template driver_algs[] = {
DESC_HDR_MODE1_MDEU_SHA1_HMAC,
},
{ .type = CRYPTO_ALG_TYPE_AEAD,
- .alg.crypto = {
- .cra_name = "authenc(hmac(sha224),cbc(aes))",
- .cra_driver_name = "authenc-hmac-sha224-cbc-aes-talitos",
- .cra_blocksize = AES_BLOCK_SIZE,
- .cra_flags = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_ASYNC,
- .cra_aead = {
- .ivsize = AES_BLOCK_SIZE,
- .maxauthsize = SHA224_DIGEST_SIZE,
- }
+ .alg.aead = {
+ .base = {
+ .cra_name = "authenc(hmac(sha224),cbc(aes))",
+ .cra_driver_name = "authenc-hmac-sha224-"
+ "cbc-aes-talitos",
+ .cra_blocksize = AES_BLOCK_SIZE,
+ .cra_flags = CRYPTO_ALG_ASYNC,
+ },
+ .ivsize = AES_BLOCK_SIZE,
+ .maxauthsize = SHA224_DIGEST_SIZE,
},
.desc_hdr_template = DESC_HDR_TYPE_IPSEC_ESP |
DESC_HDR_SEL0_AESU |
@@ -2226,15 +2174,17 @@ static struct talitos_alg_template driver_algs[] = {
DESC_HDR_MODE1_MDEU_SHA224_HMAC,
},
{ .type = CRYPTO_ALG_TYPE_AEAD,
- .alg.crypto = {
- .cra_name = "authenc(hmac(sha224),cbc(des3_ede))",
- .cra_driver_name = "authenc-hmac-sha224-cbc-3des-talitos",
- .cra_blocksize = DES3_EDE_BLOCK_SIZE,
- .cra_flags = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_ASYNC,
- .cra_aead = {
- .ivsize = DES3_EDE_BLOCK_SIZE,
- .maxauthsize = SHA224_DIGEST_SIZE,
- }
+ .alg.aead = {
+ .base = {
+ .cra_name = "authenc(hmac(sha224),"
+ "cbc(des3_ede))",
+ .cra_driver_name = "authenc-hmac-sha224-"
+ "cbc-3des-talitos",
+ .cra_blocksize = DES3_EDE_BLOCK_SIZE,
+ .cra_flags = CRYPTO_ALG_ASYNC,
+ },
+ .ivsize = DES3_EDE_BLOCK_SIZE,
+ .maxauthsize = SHA224_DIGEST_SIZE,
},
.desc_hdr_template = DESC_HDR_TYPE_IPSEC_ESP |
DESC_HDR_SEL0_DEU |
@@ -2246,15 +2196,16 @@ static struct talitos_alg_template driver_algs[] = {
DESC_HDR_MODE1_MDEU_SHA224_HMAC,
},
{ .type = CRYPTO_ALG_TYPE_AEAD,
- .alg.crypto = {
- .cra_name = "authenc(hmac(sha256),cbc(aes))",
- .cra_driver_name = "authenc-hmac-sha256-cbc-aes-talitos",
- .cra_blocksize = AES_BLOCK_SIZE,
- .cra_flags = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_ASYNC,
- .cra_aead = {
- .ivsize = AES_BLOCK_SIZE,
- .maxauthsize = SHA256_DIGEST_SIZE,
- }
+ .alg.aead = {
+ .base = {
+ .cra_name = "authenc(hmac(sha256),cbc(aes))",
+ .cra_driver_name = "authenc-hmac-sha256-"
+ "cbc-aes-talitos",
+ .cra_blocksize = AES_BLOCK_SIZE,
+ .cra_flags = CRYPTO_ALG_ASYNC,
+ },
+ .ivsize = AES_BLOCK_SIZE,
+ .maxauthsize = SHA256_DIGEST_SIZE,
},
.desc_hdr_template = DESC_HDR_TYPE_IPSEC_ESP |
DESC_HDR_SEL0_AESU |
@@ -2265,15 +2216,17 @@ static struct talitos_alg_template driver_algs[] = {
DESC_HDR_MODE1_MDEU_SHA256_HMAC,
},
{ .type = CRYPTO_ALG_TYPE_AEAD,
- .alg.crypto = {
- .cra_name = "authenc(hmac(sha256),cbc(des3_ede))",
- .cra_driver_name = "authenc-hmac-sha256-cbc-3des-talitos",
- .cra_blocksize = DES3_EDE_BLOCK_SIZE,
- .cra_flags = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_ASYNC,
- .cra_aead = {
- .ivsize = DES3_EDE_BLOCK_SIZE,
- .maxauthsize = SHA256_DIGEST_SIZE,
- }
+ .alg.aead = {
+ .base = {
+ .cra_name = "authenc(hmac(sha256),"
+ "cbc(des3_ede))",
+ .cra_driver_name = "authenc-hmac-sha256-"
+ "cbc-3des-talitos",
+ .cra_blocksize = DES3_EDE_BLOCK_SIZE,
+ .cra_flags = CRYPTO_ALG_ASYNC,
+ },
+ .ivsize = DES3_EDE_BLOCK_SIZE,
+ .maxauthsize = SHA256_DIGEST_SIZE,
},
.desc_hdr_template = DESC_HDR_TYPE_IPSEC_ESP |
DESC_HDR_SEL0_DEU |
@@ -2285,15 +2238,16 @@ static struct talitos_alg_template driver_algs[] = {
DESC_HDR_MODE1_MDEU_SHA256_HMAC,
},
{ .type = CRYPTO_ALG_TYPE_AEAD,
- .alg.crypto = {
- .cra_name = "authenc(hmac(sha384),cbc(aes))",
- .cra_driver_name = "authenc-hmac-sha384-cbc-aes-talitos",
- .cra_blocksize = AES_BLOCK_SIZE,
- .cra_flags = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_ASYNC,
- .cra_aead = {
- .ivsize = AES_BLOCK_SIZE,
- .maxauthsize = SHA384_DIGEST_SIZE,
- }
+ .alg.aead = {
+ .base = {
+ .cra_name = "authenc(hmac(sha384),cbc(aes))",
+ .cra_driver_name = "authenc-hmac-sha384-"
+ "cbc-aes-talitos",
+ .cra_blocksize = AES_BLOCK_SIZE,
+ .cra_flags = CRYPTO_ALG_ASYNC,
+ },
+ .ivsize = AES_BLOCK_SIZE,
+ .maxauthsize = SHA384_DIGEST_SIZE,
},
.desc_hdr_template = DESC_HDR_TYPE_IPSEC_ESP |
DESC_HDR_SEL0_AESU |
@@ -2304,15 +2258,17 @@ static struct talitos_alg_template driver_algs[] = {
DESC_HDR_MODE1_MDEUB_SHA384_HMAC,
},
{ .type = CRYPTO_ALG_TYPE_AEAD,
- .alg.crypto = {
- .cra_name = "authenc(hmac(sha384),cbc(des3_ede))",
- .cra_driver_name = "authenc-hmac-sha384-cbc-3des-talitos",
- .cra_blocksize = DES3_EDE_BLOCK_SIZE,
- .cra_flags = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_ASYNC,
- .cra_aead = {
- .ivsize = DES3_EDE_BLOCK_SIZE,
- .maxauthsize = SHA384_DIGEST_SIZE,
- }
+ .alg.aead = {
+ .base = {
+ .cra_name = "authenc(hmac(sha384),"
+ "cbc(des3_ede))",
+ .cra_driver_name = "authenc-hmac-sha384-"
+ "cbc-3des-talitos",
+ .cra_blocksize = DES3_EDE_BLOCK_SIZE,
+ .cra_flags = CRYPTO_ALG_ASYNC,
+ },
+ .ivsize = DES3_EDE_BLOCK_SIZE,
+ .maxauthsize = SHA384_DIGEST_SIZE,
},
.desc_hdr_template = DESC_HDR_TYPE_IPSEC_ESP |
DESC_HDR_SEL0_DEU |
@@ -2324,15 +2280,16 @@ static struct talitos_alg_template driver_algs[] = {
DESC_HDR_MODE1_MDEUB_SHA384_HMAC,
},
{ .type = CRYPTO_ALG_TYPE_AEAD,
- .alg.crypto = {
- .cra_name = "authenc(hmac(sha512),cbc(aes))",
- .cra_driver_name = "authenc-hmac-sha512-cbc-aes-talitos",
- .cra_blocksize = AES_BLOCK_SIZE,
- .cra_flags = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_ASYNC,
- .cra_aead = {
- .ivsize = AES_BLOCK_SIZE,
- .maxauthsize = SHA512_DIGEST_SIZE,
- }
+ .alg.aead = {
+ .base = {
+ .cra_name = "authenc(hmac(sha512),cbc(aes))",
+ .cra_driver_name = "authenc-hmac-sha512-"
+ "cbc-aes-talitos",
+ .cra_blocksize = AES_BLOCK_SIZE,
+ .cra_flags = CRYPTO_ALG_ASYNC,
+ },
+ .ivsize = AES_BLOCK_SIZE,
+ .maxauthsize = SHA512_DIGEST_SIZE,
},
.desc_hdr_template = DESC_HDR_TYPE_IPSEC_ESP |
DESC_HDR_SEL0_AESU |
@@ -2343,15 +2300,17 @@ static struct talitos_alg_template driver_algs[] = {
DESC_HDR_MODE1_MDEUB_SHA512_HMAC,
},
{ .type = CRYPTO_ALG_TYPE_AEAD,
- .alg.crypto = {
- .cra_name = "authenc(hmac(sha512),cbc(des3_ede))",
- .cra_driver_name = "authenc-hmac-sha512-cbc-3des-talitos",
- .cra_blocksize = DES3_EDE_BLOCK_SIZE,
- .cra_flags = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_ASYNC,
- .cra_aead = {
- .ivsize = DES3_EDE_BLOCK_SIZE,
- .maxauthsize = SHA512_DIGEST_SIZE,
- }
+ .alg.aead = {
+ .base = {
+ .cra_name = "authenc(hmac(sha512),"
+ "cbc(des3_ede))",
+ .cra_driver_name = "authenc-hmac-sha512-"
+ "cbc-3des-talitos",
+ .cra_blocksize = DES3_EDE_BLOCK_SIZE,
+ .cra_flags = CRYPTO_ALG_ASYNC,
+ },
+ .ivsize = DES3_EDE_BLOCK_SIZE,
+ .maxauthsize = SHA512_DIGEST_SIZE,
},
.desc_hdr_template = DESC_HDR_TYPE_IPSEC_ESP |
DESC_HDR_SEL0_DEU |
@@ -2363,15 +2322,16 @@ static struct talitos_alg_template driver_algs[] = {
DESC_HDR_MODE1_MDEUB_SHA512_HMAC,
},
{ .type = CRYPTO_ALG_TYPE_AEAD,
- .alg.crypto = {
- .cra_name = "authenc(hmac(md5),cbc(aes))",
- .cra_driver_name = "authenc-hmac-md5-cbc-aes-talitos",
- .cra_blocksize = AES_BLOCK_SIZE,
- .cra_flags = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_ASYNC,
- .cra_aead = {
- .ivsize = AES_BLOCK_SIZE,
- .maxauthsize = MD5_DIGEST_SIZE,
- }
+ .alg.aead = {
+ .base = {
+ .cra_name = "authenc(hmac(md5),cbc(aes))",
+ .cra_driver_name = "authenc-hmac-md5-"
+ "cbc-aes-talitos",
+ .cra_blocksize = AES_BLOCK_SIZE,
+ .cra_flags = CRYPTO_ALG_ASYNC,
+ },
+ .ivsize = AES_BLOCK_SIZE,
+ .maxauthsize = MD5_DIGEST_SIZE,
},
.desc_hdr_template = DESC_HDR_TYPE_IPSEC_ESP |
DESC_HDR_SEL0_AESU |
@@ -2382,15 +2342,16 @@ static struct talitos_alg_template driver_algs[] = {
DESC_HDR_MODE1_MDEU_MD5_HMAC,
},
{ .type = CRYPTO_ALG_TYPE_AEAD,
- .alg.crypto = {
- .cra_name = "authenc(hmac(md5),cbc(des3_ede))",
- .cra_driver_name = "authenc-hmac-md5-cbc-3des-talitos",
- .cra_blocksize = DES3_EDE_BLOCK_SIZE,
- .cra_flags = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_ASYNC,
- .cra_aead = {
- .ivsize = DES3_EDE_BLOCK_SIZE,
- .maxauthsize = MD5_DIGEST_SIZE,
- }
+ .alg.aead = {
+ .base = {
+ .cra_name = "authenc(hmac(md5),cbc(des3_ede))",
+ .cra_driver_name = "authenc-hmac-md5-"
+ "cbc-3des-talitos",
+ .cra_blocksize = DES3_EDE_BLOCK_SIZE,
+ .cra_flags = CRYPTO_ALG_ASYNC,
+ },
+ .ivsize = DES3_EDE_BLOCK_SIZE,
+ .maxauthsize = MD5_DIGEST_SIZE,
},
.desc_hdr_template = DESC_HDR_TYPE_IPSEC_ESP |
DESC_HDR_SEL0_DEU |
@@ -2658,15 +2619,9 @@ static int talitos_cra_init(struct crypto_tfm *tfm)
return 0;
}
-static int talitos_cra_init_aead(struct crypto_tfm *tfm)
+static int talitos_cra_init_aead(struct crypto_aead *tfm)
{
- struct talitos_ctx *ctx = crypto_tfm_ctx(tfm);
-
- talitos_cra_init(tfm);
-
- /* random first IV */
- get_random_bytes(ctx->iv, TALITOS_MAX_IV_LENGTH);
-
+ talitos_cra_init(crypto_aead_tfm(tfm));
return 0;
}
@@ -2713,9 +2668,9 @@ static int talitos_remove(struct platform_device *ofdev)
list_for_each_entry_safe(t_alg, n, &priv->alg_list, entry) {
switch (t_alg->algt.type) {
case CRYPTO_ALG_TYPE_ABLKCIPHER:
- case CRYPTO_ALG_TYPE_AEAD:
- crypto_unregister_alg(&t_alg->algt.alg.crypto);
break;
+ case CRYPTO_ALG_TYPE_AEAD:
+ crypto_unregister_aead(&t_alg->algt.alg.aead);
case CRYPTO_ALG_TYPE_AHASH:
crypto_unregister_ahash(&t_alg->algt.alg.hash);
break;
@@ -2727,7 +2682,7 @@ static int talitos_remove(struct platform_device *ofdev)
if (hw_supports(dev, DESC_HDR_SEL0_RNG))
talitos_unregister_rng(dev);
- for (i = 0; i < priv->num_channels; i++)
+ for (i = 0; priv->chan && i < priv->num_channels; i++)
kfree(priv->chan[i].fifo);
kfree(priv->chan);
@@ -2774,15 +2729,11 @@ static struct talitos_crypto_alg *talitos_alg_alloc(struct device *dev,
alg->cra_ablkcipher.geniv = "eseqiv";
break;
case CRYPTO_ALG_TYPE_AEAD:
- alg = &t_alg->algt.alg.crypto;
- alg->cra_init = talitos_cra_init_aead;
- alg->cra_type = &crypto_aead_type;
- alg->cra_aead.setkey = aead_setkey;
- alg->cra_aead.setauthsize = aead_setauthsize;
- alg->cra_aead.encrypt = aead_encrypt;
- alg->cra_aead.decrypt = aead_decrypt;
- alg->cra_aead.givencrypt = aead_givencrypt;
- alg->cra_aead.geniv = "<built-in>";
+ alg = &t_alg->algt.alg.aead.base;
+ t_alg->algt.alg.aead.init = talitos_cra_init_aead;
+ t_alg->algt.alg.aead.setkey = aead_setkey;
+ t_alg->algt.alg.aead.encrypt = aead_encrypt;
+ t_alg->algt.alg.aead.decrypt = aead_decrypt;
break;
case CRYPTO_ALG_TYPE_AHASH:
alg = &t_alg->algt.alg.hash.halg.base;
@@ -3041,7 +2992,7 @@ static int talitos_probe(struct platform_device *ofdev)
for (i = 0; i < ARRAY_SIZE(driver_algs); i++) {
if (hw_supports(dev, driver_algs[i].desc_hdr_template)) {
struct talitos_crypto_alg *t_alg;
- char *name = NULL;
+ struct crypto_alg *alg = NULL;
t_alg = talitos_alg_alloc(dev, &driver_algs[i]);
if (IS_ERR(t_alg)) {
@@ -3053,21 +3004,26 @@ static int talitos_probe(struct platform_device *ofdev)
switch (t_alg->algt.type) {
case CRYPTO_ALG_TYPE_ABLKCIPHER:
- case CRYPTO_ALG_TYPE_AEAD:
err = crypto_register_alg(
&t_alg->algt.alg.crypto);
- name = t_alg->algt.alg.crypto.cra_driver_name;
+ alg = &t_alg->algt.alg.crypto;
break;
+
+ case CRYPTO_ALG_TYPE_AEAD:
+ err = crypto_register_aead(
+ &t_alg->algt.alg.aead);
+ alg = &t_alg->algt.alg.aead.base;
+ break;
+
case CRYPTO_ALG_TYPE_AHASH:
err = crypto_register_ahash(
&t_alg->algt.alg.hash);
- name =
- t_alg->algt.alg.hash.halg.base.cra_driver_name;
+ alg = &t_alg->algt.alg.hash.halg.base;
break;
}
if (err) {
dev_err(dev, "%s alg registration failed\n",
- name);
+ alg->cra_driver_name);
kfree(t_alg);
} else
list_add_tail(&t_alg->entry, &priv->alg_list);
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-11-01 15:05:52 +0000