diff options
author | LEROY Christophe | 2017-10-06 15:04:57 +0200 |
---|---|---|
committer | Herbert Xu | 2017-10-12 22:55:33 +0800 |
commit | da9de146ebd99e162c4724ebce46a2bf2bc06085 (patch) | |
tree | f9dd6e0ccadb50ef0ebfd57e432e3a03396f92fb /drivers | |
parent | 9c02e2852fcabf0e1542929e887867d01414dec6 (diff) |
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>
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/crypto/talitos.c | 56 |
1 files changed, 21 insertions, 35 deletions
diff --git a/drivers/crypto/talitos.c b/drivers/crypto/talitos.c index e7e1bada03df..7e96db75347a 100644 --- a/drivers/crypto/talitos.c +++ b/drivers/crypto/talitos.c @@ -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, |