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authorHerbert Xu <herbert@gondor.apana.org.au>2013-09-06 22:53:35 -0400
committerHerbert Xu <herbert@gondor.apana.org.au>2013-09-06 22:53:35 -0400
commiteeca9fad52fc4bfdf42c38bfcf383e932eb3e9d6 (patch)
treecc51c880459d41c0e8d7576405bef4c987bc7aa0 /drivers/crypto
parentff6f83fc9d44db09997937c3475d525a6866fbb4 (diff)
parentb48a97be8e6c2afdba2f3b61fd88c3c7743fbd73 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux
Merge upstream tree in order to reinstate crct10dif.
Diffstat (limited to 'drivers/crypto')
-rw-r--r--drivers/crypto/caam/caamhash.c2
-rw-r--r--drivers/crypto/talitos.c60
2 files changed, 2 insertions, 60 deletions
diff --git a/drivers/crypto/caam/caamhash.c b/drivers/crypto/caam/caamhash.c
index aa65c6e0c430..e732bd962e98 100644
--- a/drivers/crypto/caam/caamhash.c
+++ b/drivers/crypto/caam/caamhash.c
@@ -428,7 +428,7 @@ static int hash_digest_key(struct caam_hash_ctx *ctx, const u8 *key_in,
428 dma_addr_t src_dma, dst_dma; 428 dma_addr_t src_dma, dst_dma;
429 int ret = 0; 429 int ret = 0;
430 430
431 desc = kmalloc(CAAM_CMD_SZ * 6 + CAAM_PTR_SZ * 2, GFP_KERNEL | GFP_DMA); 431 desc = kmalloc(CAAM_CMD_SZ * 8 + CAAM_PTR_SZ * 2, GFP_KERNEL | GFP_DMA);
432 if (!desc) { 432 if (!desc) {
433 dev_err(jrdev, "unable to allocate key input memory\n"); 433 dev_err(jrdev, "unable to allocate key input memory\n");
434 return -ENOMEM; 434 return -ENOMEM;
diff --git a/drivers/crypto/talitos.c b/drivers/crypto/talitos.c
index 5b2b5e61e4f9..661dc3eb1d66 100644
--- a/drivers/crypto/talitos.c
+++ b/drivers/crypto/talitos.c
@@ -1112,64 +1112,6 @@ static int sg_count(struct scatterlist *sg_list, int nbytes, bool *chained)
1112 return sg_nents; 1112 return sg_nents;
1113} 1113}
1114 1114
1115/**
1116 * sg_copy_end_to_buffer - Copy end data from SG list to a linear buffer
1117 * @sgl: The SG list
1118 * @nents: Number of SG entries
1119 * @buf: Where to copy to
1120 * @buflen: The number of bytes to copy
1121 * @skip: The number of bytes to skip before copying.
1122 * Note: skip + buflen should equal SG total size.
1123 *
1124 * Returns the number of copied bytes.
1125 *
1126 **/
1127static size_t sg_copy_end_to_buffer(struct scatterlist *sgl, unsigned int nents,
1128 void *buf, size_t buflen, unsigned int skip)
1129{
1130 unsigned int offset = 0;
1131 unsigned int boffset = 0;
1132 struct sg_mapping_iter miter;
1133 unsigned long flags;
1134 unsigned int sg_flags = SG_MITER_ATOMIC;
1135 size_t total_buffer = buflen + skip;
1136
1137 sg_flags |= SG_MITER_FROM_SG;
1138
1139 sg_miter_start(&miter, sgl, nents, sg_flags);
1140
1141 local_irq_save(flags);
1142
1143 while (sg_miter_next(&miter) && offset < total_buffer) {
1144 unsigned int len;
1145 unsigned int ignore;
1146
1147 if ((offset + miter.length) > skip) {
1148 if (offset < skip) {
1149 /* Copy part of this segment */
1150 ignore = skip - offset;
1151 len = miter.length - ignore;
1152 if (boffset + len > buflen)
1153 len = buflen - boffset;
1154 memcpy(buf + boffset, miter.addr + ignore, len);
1155 } else {
1156 /* Copy all of this segment (up to buflen) */
1157 len = miter.length;
1158 if (boffset + len > buflen)
1159 len = buflen - boffset;
1160 memcpy(buf + boffset, miter.addr, len);
1161 }
1162 boffset += len;
1163 }
1164 offset += miter.length;
1165 }
1166
1167 sg_miter_stop(&miter);
1168
1169 local_irq_restore(flags);
1170 return boffset;
1171}
1172
1173/* 1115/*
1174 * allocate and map the extended descriptor 1116 * allocate and map the extended descriptor
1175 */ 1117 */
@@ -1800,7 +1742,7 @@ static int ahash_process_req(struct ahash_request *areq, unsigned int nbytes)
1800 1742
1801 if (to_hash_later) { 1743 if (to_hash_later) {
1802 int nents = sg_count(areq->src, nbytes, &chained); 1744 int nents = sg_count(areq->src, nbytes, &chained);
1803 sg_copy_end_to_buffer(areq->src, nents, 1745 sg_pcopy_to_buffer(areq->src, nents,
1804 req_ctx->bufnext, 1746 req_ctx->bufnext,
1805 to_hash_later, 1747 to_hash_later,
1806 nbytes - to_hash_later); 1748 nbytes - to_hash_later);