From: Maxime Méré <maxime.mere@xxxxxxxxxxx>
The finalize operation in interrupt mode produce a produces a spinlock
recursion warning. The reason is the fact that BH must be disabled
during this process.
Signed-off-by: Maxime Méré <maxime.mere@xxxxxxxxxxx>
---
drivers/crypto/stm32/stm32-cryp.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/crypto/stm32/stm32-cryp.c b/drivers/crypto/stm32/stm32-cryp.c
index 445276b848ed..937f6dab8955 100644
--- a/drivers/crypto/stm32/stm32-cryp.c
+++ b/drivers/crypto/stm32/stm32-cryp.c
@@ -11,6 +11,7 @@
#include <crypto/internal/des.h>
#include <crypto/internal/skcipher.h>
#include <crypto/scatterwalk.h>
+#include <linux/bottom_half.h>
#include <linux/clk.h>
#include <linux/delay.h>
#include <linux/dma-mapping.h>
@@ -2203,8 +2204,11 @@ static irqreturn_t stm32_cryp_irq_thread(int irq, void *arg)
it_mask &= ~IMSCR_OUT;
stm32_cryp_write(cryp, cryp->caps->imsc, it_mask);
- if (!cryp->payload_in && !cryp->header_in && !cryp->payload_out)
+ if (!cryp->payload_in && !cryp->header_in && !cryp->payload_out) {
+ local_bh_disable();
stm32_cryp_finish_req(cryp, 0);
+ local_bh_enable();
+ }
return IRQ_HANDLED;
}
--
2.25.1
