diff options
Diffstat (limited to 'drivers/crypto/omap-aes.c')
| -rw-r--r-- | drivers/crypto/omap-aes.c | 36 |
1 files changed, 15 insertions, 21 deletions
diff --git a/drivers/crypto/omap-aes.c b/drivers/crypto/omap-aes.c index bad1adacbc84..551dd32a8db0 100644 --- a/drivers/crypto/omap-aes.c +++ b/drivers/crypto/omap-aes.c @@ -18,7 +18,6 @@ #include <crypto/internal/aead.h> #include <crypto/internal/engine.h> #include <crypto/internal/skcipher.h> -#include <crypto/scatterwalk.h> #include <linux/dma-mapping.h> #include <linux/dmaengine.h> #include <linux/err.h> @@ -272,9 +271,9 @@ static int omap_aes_crypt_dma(struct omap_aes_dev *dd, int ret; if (dd->pio_only) { - scatterwalk_start(&dd->in_walk, dd->in_sg); + dd->in_sg_offset = 0; if (out_sg_len) - scatterwalk_start(&dd->out_walk, dd->out_sg); + dd->out_sg_offset = 0; /* Enable DATAIN interrupt and let it take care of the rest */ @@ -871,21 +870,18 @@ static irqreturn_t omap_aes_irq(int irq, void *dev_id) BUG_ON(!dd->in_sg); - BUG_ON(_calc_walked(in) > dd->in_sg->length); + BUG_ON(dd->in_sg_offset > dd->in_sg->length); - src = sg_virt(dd->in_sg) + _calc_walked(in); + src = sg_virt(dd->in_sg) + dd->in_sg_offset; for (i = 0; i < AES_BLOCK_WORDS; i++) { omap_aes_write(dd, AES_REG_DATA_N(dd, i), *src); - - scatterwalk_advance(&dd->in_walk, 4); - if (dd->in_sg->length == _calc_walked(in)) { + dd->in_sg_offset += 4; + if (dd->in_sg_offset == dd->in_sg->length) { dd->in_sg = sg_next(dd->in_sg); if (dd->in_sg) { - scatterwalk_start(&dd->in_walk, - dd->in_sg); - src = sg_virt(dd->in_sg) + - _calc_walked(in); + dd->in_sg_offset = 0; + src = sg_virt(dd->in_sg); } } else { src++; @@ -904,20 +900,18 @@ static irqreturn_t omap_aes_irq(int irq, void *dev_id) BUG_ON(!dd->out_sg); - BUG_ON(_calc_walked(out) > dd->out_sg->length); + BUG_ON(dd->out_sg_offset > dd->out_sg->length); - dst = sg_virt(dd->out_sg) + _calc_walked(out); + dst = sg_virt(dd->out_sg) + dd->out_sg_offset; for (i = 0; i < AES_BLOCK_WORDS; i++) { *dst = omap_aes_read(dd, AES_REG_DATA_N(dd, i)); - scatterwalk_advance(&dd->out_walk, 4); - if (dd->out_sg->length == _calc_walked(out)) { + dd->out_sg_offset += 4; + if (dd->out_sg_offset == dd->out_sg->length) { dd->out_sg = sg_next(dd->out_sg); if (dd->out_sg) { - scatterwalk_start(&dd->out_walk, - dd->out_sg); - dst = sg_virt(dd->out_sg) + - _calc_walked(out); + dd->out_sg_offset = 0; + dst = sg_virt(dd->out_sg); } } else { dst++; @@ -1305,7 +1299,7 @@ static SIMPLE_DEV_PM_OPS(omap_aes_pm_ops, omap_aes_suspend, omap_aes_resume); static struct platform_driver omap_aes_driver = { .probe = omap_aes_probe, - .remove_new = omap_aes_remove, + .remove = omap_aes_remove, .driver = { .name = "omap-aes", .pm = &omap_aes_pm_ops, |