diff options
| author | Dmitry Kasatkin <dmitry.kasatkin@nokia.com> | 2011-06-02 20:10:07 +0200 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2011-06-30 01:44:03 +0200 |
| commit | ed3ea9a82b4c63e591ceaa065b2e04a3fe946265 (patch) | |
| tree | d30c1cb1df749adf31102b69bc9e664845edf78a /drivers/crypto | |
| parent | crypto: omap-sham - replace flags operation with atomic bit operations (diff) | |
| download | linux-ed3ea9a82b4c63e591ceaa065b2e04a3fe946265.tar.xz linux-ed3ea9a82b4c63e591ceaa065b2e04a3fe946265.zip | |
crypto: omap-sham - move some flags to device context
Couple of context flags have been moved to device flags.
IRQ and tasklet handlers does not need to access request
context anymore.
Signed-off-by: Dmitry Kasatkin <dmitry.kasatkin@nokia.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto')
| -rw-r--r-- | drivers/crypto/omap-sham.c | 19 |
1 files changed, 6 insertions, 13 deletions
diff --git a/drivers/crypto/omap-sham.c b/drivers/crypto/omap-sham.c index 208404e20ef7..b959dc6dbbde 100644 --- a/drivers/crypto/omap-sham.c +++ b/drivers/crypto/omap-sham.c @@ -303,7 +303,7 @@ static int omap_sham_xmit_cpu(struct omap_sham_dev *dd, const u8 *buf, return -ETIMEDOUT; if (final) - set_bit(FLAGS_FINAL, &ctx->flags); /* catch last interrupt */ + set_bit(FLAGS_FINAL, &dd->flags); /* catch last interrupt */ len32 = DIV_ROUND_UP(length, sizeof(u32)); @@ -336,7 +336,7 @@ static int omap_sham_xmit_dma(struct omap_sham_dev *dd, dma_addr_t dma_addr, ctx->digcnt += length; if (final) - set_bit(FLAGS_FINAL, &ctx->flags); /* catch last interrupt */ + set_bit(FLAGS_FINAL, &dd->flags); /* catch last interrupt */ set_bit(FLAGS_DMA_ACTIVE, &dd->flags); @@ -642,7 +642,7 @@ static void omap_sham_finish_req(struct ahash_request *req, int err) if (!err) { omap_sham_copy_hash(req, 1); - if (test_bit(FLAGS_FINAL, &ctx->flags)) + if (test_bit(FLAGS_FINAL, &dd->flags)) err = omap_sham_finish(req); } else { ctx->flags |= BIT(FLAGS_ERROR); @@ -1034,10 +1034,9 @@ static void omap_sham_done_task(unsigned long data) { struct omap_sham_dev *dd = (struct omap_sham_dev *)data; struct ahash_request *req = dd->req; - struct omap_sham_reqctx *ctx = ahash_request_ctx(req); int ready = 0, err = 0; - if (test_and_clear_bit(FLAGS_OUTPUT_READY, &ctx->flags)) + if (test_and_clear_bit(FLAGS_OUTPUT_READY, &dd->flags)) ready = 1; if (test_and_clear_bit(FLAGS_DMA_ACTIVE, &dd->flags)) { @@ -1067,14 +1066,8 @@ static void omap_sham_queue_task(unsigned long data) static irqreturn_t omap_sham_irq(int irq, void *dev_id) { struct omap_sham_dev *dd = dev_id; - struct omap_sham_reqctx *ctx = ahash_request_ctx(dd->req); - - if (!ctx) { - dev_err(dd->dev, "unknown interrupt.\n"); - return IRQ_HANDLED; - } - if (unlikely(test_bit(FLAGS_FINAL, &ctx->flags))) + if (unlikely(test_bit(FLAGS_FINAL, &dd->flags))) /* final -> allow device to go to power-saving mode */ omap_sham_write_mask(dd, SHA_REG_CTRL, 0, SHA_REG_CTRL_LENGTH); @@ -1082,7 +1075,7 @@ static irqreturn_t omap_sham_irq(int irq, void *dev_id) SHA_REG_CTRL_OUTPUT_READY); omap_sham_read(dd, SHA_REG_CTRL); - set_bit(FLAGS_OUTPUT_READY, &ctx->flags); + set_bit(FLAGS_OUTPUT_READY, &dd->flags); dd->err = 0; tasklet_schedule(&dd->done_task); |