From e1d24c0bb76648cdf789b168defb6e31adb0b1b1 Mon Sep 17 00:00:00 2001 From: Antoine Tenart Date: Tue, 13 Feb 2018 09:26:51 +0100 Subject: [PATCH] crypto: inside-secure - do not overwrite the threshold value This patch fixes the Inside Secure SafeXcel driver not to overwrite the interrupt threshold value. In certain cases the value of this register, which controls when to fire an interrupt, was overwritten. This lead to packet not being processed or acked as the driver never was aware of their completion. This patch fixes this behaviour by not setting the threshold when requests are being processed by the engine. Fixes: dc7e28a3286e ("crypto: inside-secure - dequeue all requests at once") Suggested-by: Ofer Heifetz Signed-off-by: Antoine Tenart Signed-off-by: Herbert Xu --- drivers/crypto/inside-secure/safexcel.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/crypto/inside-secure/safexcel.c b/drivers/crypto/inside-secure/safexcel.c index 225e74a7f724..5cb90bcd3f18 100644 --- a/drivers/crypto/inside-secure/safexcel.c +++ b/drivers/crypto/inside-secure/safexcel.c @@ -514,8 +514,7 @@ finalize: if (!priv->ring[ring].busy) { nreq -= safexcel_try_push_requests(priv, ring, nreq); - if (nreq) - priv->ring[ring].busy = true; + priv->ring[ring].busy = true; } priv->ring[ring].requests_left += nreq; -- 2.20.1