Re: [PATCH v2 16/19] crypto: rockchip: convert tasklets to use new tasklet_setup() API

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On Thu, 7 Jan 2021 at 13:32, Allen Pais <allen.lkml@xxxxxxxxx> wrote:

From: Allen Pais <apais@xxxxxxxxxxxxxxxxxxx>

In preparation for unconditionally passing the
struct tasklet_struct pointer to all tasklet
callbacks, switch to using the new tasklet_setup()
and from_tasklet() to pass the tasklet pointer explicitly.

Signed-off-by: Romain Perier <romain.perier@xxxxxxxxx>
Signed-off-by: Allen Pais <apais@xxxxxxxxxxxxxxxxxxx>
---
  drivers/crypto/rockchip/rk3288_crypto.c | 14 ++++++--------
  1 file changed, 6 insertions(+), 8 deletions(-)

diff --git a/drivers/crypto/rockchip/rk3288_crypto.c b/drivers/crypto/rockchip/rk3288_crypto.c
index 35d73061d156..af6ad9f49009 100644
--- a/drivers/crypto/rockchip/rk3288_crypto.c
+++ b/drivers/crypto/rockchip/rk3288_crypto.c
@@ -201,9 +201,9 @@ static int rk_crypto_enqueue(struct rk_crypto_info *dev,
         return ret;
  }

-static void rk_crypto_queue_task_cb(unsigned long data)
+static void rk_crypto_queue_task_cb(struct tasklet_struct *T)
  {
-       struct rk_crypto_info *dev = (struct rk_crypto_info *)data;
+       struct rk_crypto_info *dev = from_tasklet(dev, t, queue_task);

This doesn't look right. First it's called T and then t. I wonder how
this even compiles..


Thanks for catching it. I am not sure how I missed it and it even compiled. I will fix it.

Thanks.

         struct crypto_async_request *async_req, *backlog;
         unsigned long flags;
         int err = 0;
@@ -231,9 +231,9 @@ static void rk_crypto_queue_task_cb(unsigned long data)
                 dev->complete(dev->async_req, err);
  }

-static void rk_crypto_done_task_cb(unsigned long data)
+static void rk_crypto_done_task_cb(struct tasklet_struct *t)
  {
-       struct rk_crypto_info *dev = (struct rk_crypto_info *)data;
+       struct rk_crypto_info *dev = from_tasklet(dev, t, done_task);

         if (dev->err) {
                 dev->complete(dev->async_req, dev->err);
@@ -389,10 +389,8 @@ static int rk_crypto_probe(struct platform_device *pdev)
         crypto_info->dev = &pdev->dev;
         platform_set_drvdata(pdev, crypto_info);

-       tasklet_init(&crypto_info->queue_task,
-                    rk_crypto_queue_task_cb, (unsigned long)crypto_info);
-       tasklet_init(&crypto_info->done_task,
-                    rk_crypto_done_task_cb, (unsigned long)crypto_info);
+       tasklet_setup(&crypto_info->queue_task, rk_crypto_queue_task_cb);
+       tasklet_setup(&crypto_info->done_task, rk_crypto_done_task_cb);
         crypto_init_queue(&crypto_info->queue, 50);

         crypto_info->enable_clk = rk_crypto_enable_clk;
--
2.25.1


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