diff mbox

[06/28] crypto: omap-sham: avoid executing tasklet where not needed

Message ID 1464771389-10640-7-git-send-email-t-kristo@ti.com (mailing list archive)
State Changes Requested
Delegated to: Herbert Xu
Headers show

Commit Message

Tero Kristo June 1, 2016, 8:56 a.m. UTC 
Some of the call paths of OMAP SHA driver can avoid executing the next
step of the crypto queue under tasklet; instead, execute the next step
directly via function call. This avoids a costly round-trip via the
scheduler giving a slight performance boost.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
---
 drivers/crypto/omap-sham.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
diff mbox

Patch

diff --git a/drivers/crypto/omap-sham.c b/drivers/crypto/omap-sham.c
index a5c823b..34ebe1d 100644
--- a/drivers/crypto/omap-sham.c
+++ b/drivers/crypto/omap-sham.c
@@ -240,6 +240,8 @@  static struct omap_sham_drv sham = {
 	.lock = __SPIN_LOCK_UNLOCKED(sham.lock),
 };
 
+static void omap_sham_done_task(unsigned long data);
+
 static inline u32 omap_sham_read(struct omap_sham_dev *dd, u32 offset)
 {
 	return __raw_readl(dd->io_base + offset);
@@ -994,7 +996,7 @@  static void omap_sham_finish_req(struct ahash_request *req, int err)
 		req->base.complete(&req->base, err);
 
 	/* handle new request */
-	tasklet_schedule(&dd->done_task);
+	omap_sham_done_task((unsigned long)dd);
 }
 
 static int omap_sham_handle_queue(struct omap_sham_dev *dd,