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crypto: talitos - remove to_talitos_ptr_len() 

to_talitos_ptr() and to_talitos_ptr_len() are always called together
in order to fully set a ptr, so lets merge them into a single
helper.

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
LEROY Christophe 2017-10-06 15:04:57 +02:00 committed by Herbert Xu
parent 9c02e2852f
commit da9de146eb
1 changed files with 21 additions and 35 deletions
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56
drivers/crypto/talitos.c
View File

@ -56,28 +56,26 @@
#include "talitos.h"
static void to_talitos_ptr(struct talitos_ptr *ptr, dma_addr_t dma_addr,
bool is_sec1)
unsigned int len, bool is_sec1)
{
ptr->ptr = cpu_to_be32(lower_32_bits(dma_addr));
if (!is_sec1)
if (is_sec1) {
ptr->len1 = cpu_to_be16(len);
} else {
ptr->len = cpu_to_be16(len);
ptr->eptr = upper_32_bits(dma_addr);
}
}
static void copy_talitos_ptr(struct talitos_ptr *dst_ptr,
struct talitos_ptr *src_ptr, bool is_sec1)
{
dst_ptr->ptr = src_ptr->ptr;
if (!is_sec1)
dst_ptr->eptr = src_ptr->eptr;
}
static void to_talitos_ptr_len(struct talitos_ptr *ptr, unsigned int len,
bool is_sec1)
{
if (is_sec1) {
ptr->len1 = cpu_to_be16(len);
dst_ptr->len1 = src_ptr->len1;
} else {
ptr->len = cpu_to_be16(len);
dst_ptr->len = src_ptr->len;
dst_ptr->eptr = src_ptr->eptr;
}
}
@ -115,8 +113,7 @@ static void map_single_talitos_ptr(struct device *dev,
struct talitos_private *priv = dev_get_drvdata(dev);
bool is_sec1 = has_ftr_sec1(priv);
to_talitos_ptr_len(ptr, len, is_sec1);
to_talitos_ptr(ptr, dma_addr, is_sec1);
to_talitos_ptr(ptr, dma_addr, len, is_sec1);
}
/*
@ -1090,8 +1087,7 @@ static int sg_to_link_tbl_offset(struct scatterlist *sg, int sg_count,
len = cryptlen;
to_talitos_ptr(link_tbl_ptr + count,
sg_dma_address(sg) + offset, 0);
to_talitos_ptr_len(link_tbl_ptr + count, len, 0);
sg_dma_address(sg) + offset, len, 0);
to_talitos_ptr_ext_set(link_tbl_ptr + count, 0, 0);
count++;
cryptlen -= len;
@ -1117,14 +1113,12 @@ static int talitos_sg_map(struct device *dev, struct scatterlist *src,
struct talitos_private *priv = dev_get_drvdata(dev);
bool is_sec1 = has_ftr_sec1(priv);
to_talitos_ptr_len(ptr, len, is_sec1);
if (sg_count == 1) {
to_talitos_ptr(ptr, sg_dma_address(src) + offset, is_sec1);
to_talitos_ptr(ptr, sg_dma_address(src) + offset, len, is_sec1);
return sg_count;
}
if (is_sec1) {
to_talitos_ptr(ptr, edesc->dma_link_tbl + offset, is_sec1);
to_talitos_ptr(ptr, edesc->dma_link_tbl + offset, len, is_sec1);
return sg_count;
}
sg_count = sg_to_link_tbl_offset(src, sg_count, offset, len,
@ -1135,7 +1129,7 @@ static int talitos_sg_map(struct device *dev, struct scatterlist *src,
return sg_count;
}
to_talitos_ptr(ptr, edesc->dma_link_tbl +
tbl_off * sizeof(struct talitos_ptr), is_sec1);
tbl_off * sizeof(struct talitos_ptr), len, is_sec1);
to_talitos_ptr_ext_or(ptr, DESC_PTR_LNKTBL_JUMP, is_sec1);
return sg_count;
@ -1186,13 +1180,10 @@ static int ipsec_esp(struct talitos_edesc *edesc, struct aead_request *areq,
}
/* cipher iv */
if (desc->hdr & DESC_HDR_TYPE_IPSEC_ESP) {
to_talitos_ptr(&desc->ptr[2], edesc->iv_dma, is_sec1);
to_talitos_ptr_len(&desc->ptr[2], ivsize, is_sec1);
} else {
to_talitos_ptr(&desc->ptr[3], edesc->iv_dma, is_sec1);
to_talitos_ptr_len(&desc->ptr[3], ivsize, is_sec1);
}
if (desc->hdr & DESC_HDR_TYPE_IPSEC_ESP)
to_talitos_ptr(&desc->ptr[2], edesc->iv_dma, ivsize, is_sec1);
else
to_talitos_ptr(&desc->ptr[3], edesc->iv_dma, ivsize, is_sec1);
/* cipher key */
if (desc->hdr & DESC_HDR_TYPE_IPSEC_ESP)
@ -1210,8 +1201,6 @@ static int ipsec_esp(struct talitos_edesc *edesc, struct aead_request *areq,
* extent is bytes of HMAC postpended to ciphertext,
* typically 12 for ipsec
*/
to_talitos_ptr_len(&desc->ptr[4], cryptlen, is_sec1);
sg_link_tbl_len = cryptlen;
if (desc->hdr & DESC_HDR_TYPE_IPSEC_ESP) {
@ -1257,11 +1246,10 @@ static int ipsec_esp(struct talitos_edesc *edesc, struct aead_request *areq,
to_talitos_ptr_ext_set(tbl_ptr - 1, 0, is_sec1);
to_talitos_ptr_ext_set(tbl_ptr, DESC_PTR_LNKTBL_RETURN,
is_sec1);
to_talitos_ptr_len(tbl_ptr, authsize, is_sec1);
/* icv data follows link tables */
to_talitos_ptr(tbl_ptr, edesc->dma_link_tbl + offset,
is_sec1);
authsize, is_sec1);
} else {
dma_addr_t addr = edesc->dma_link_tbl;
@ -1270,8 +1258,7 @@ static int ipsec_esp(struct talitos_edesc *edesc, struct aead_request *areq,
else
addr += sizeof(struct talitos_ptr) * tbl_off;
to_talitos_ptr(&desc->ptr[6], addr, is_sec1);
to_talitos_ptr_len(&desc->ptr[6], authsize, is_sec1);
to_talitos_ptr(&desc->ptr[6], addr, authsize, is_sec1);
}
} else if (!(desc->hdr & DESC_HDR_TYPE_IPSEC_ESP)) {
ret = talitos_sg_map(dev, areq->dst, authsize, edesc,
@ -1567,8 +1554,7 @@ static int common_nonsnoop(struct talitos_edesc *edesc,
/* first DWORD empty */
/* cipher iv */
to_talitos_ptr(&desc->ptr[1], edesc->iv_dma, is_sec1);
to_talitos_ptr_len(&desc->ptr[1], ivsize, is_sec1);
to_talitos_ptr(&desc->ptr[1], edesc->iv_dma, ivsize, is_sec1);
/* cipher key */
map_single_talitos_ptr(dev, &desc->ptr[2], ctx->keylen,