mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-26 19:00:25 +00:00
crypto: omap-aes - Populate number of SG elements
Crypto layer only passes nbytes but number of SG elements is needed for mapping or unmapping SGs at one time using dma_map* API and also needed to pass in for dmaengine prep function. We call function added to scatterwalk for this purpose in omap_aes_handle_queue to populate the values which are used later. Signed-off-by: Joel Fernandes <joelf@ti.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
parent
016af9b5c5
commit
e77c756eca
1 changed files with 6 additions and 0 deletions
|
@ -165,6 +165,8 @@ struct omap_aes_dev {
|
|||
void *buf_out;
|
||||
int dma_out;
|
||||
struct dma_chan *dma_lch_out;
|
||||
int in_sg_len;
|
||||
int out_sg_len;
|
||||
dma_addr_t dma_addr_out;
|
||||
|
||||
const struct omap_aes_pdata *pdata;
|
||||
|
@ -725,6 +727,10 @@ static int omap_aes_handle_queue(struct omap_aes_dev *dd,
|
|||
dd->out_offset = 0;
|
||||
dd->out_sg = req->dst;
|
||||
|
||||
dd->in_sg_len = scatterwalk_bytes_sglen(dd->in_sg, dd->total);
|
||||
dd->out_sg_len = scatterwalk_bytes_sglen(dd->out_sg, dd->total);
|
||||
BUG_ON(dd->in_sg_len < 0 || dd->out_sg_len < 0);
|
||||
|
||||
rctx = ablkcipher_request_ctx(req);
|
||||
ctx = crypto_ablkcipher_ctx(crypto_ablkcipher_reqtfm(req));
|
||||
rctx->mode &= FLAGS_MODE_MASK;
|
||||
|
|
Loading…
Reference in a new issue