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[PATCHv2,05/27] crypto: omap-sham: avoid executing tasklet where not needed

Message ID 1466601840-18486-6-git-send-email-t-kristo@ti.com
State New
Headers show

Commit Message

Tero Kristo June 22, 2016, 1:23 p.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(-)

-- 
1.9.1


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diff mbox

Patch

diff --git a/drivers/crypto/omap-sham.c b/drivers/crypto/omap-sham.c
index 6247887..84a0027 100644
--- a/drivers/crypto/omap-sham.c
+++ b/drivers/crypto/omap-sham.c
@@ -242,6 +242,8 @@  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);
@@ -1007,7 +1009,7 @@  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,