diff mbox series

[v3,4/7] soc/fsl/qbman: Fix drain_mr_fqni()

Message ID 1564690599-29713-5-git-send-email-roy.pledge@nxp.com (mailing list archive)
State Mainlined
Commit 627da8bad530ec18c2111347fe559c5c21679220
Headers show
Series soc/fsl/qbman: Enable Kexec for DPAA1 devices | expand

Commit Message

Roy Pledge Aug. 1, 2019, 8:16 p.m. UTC 
The drain_mr_fqni() function may be called fron uninterruptable
context so convert the msleep() to an mdelay().  Also ensure that
the valid bit is updated while polling.

Signed-off-by: Roy Pledge <roy.pledge@nxp.com>
---
 drivers/soc/fsl/qbman/qman.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/soc/fsl/qbman/qman.c b/drivers/soc/fsl/qbman/qman.c
index f10f77d..2989504 100644
--- a/drivers/soc/fsl/qbman/qman.c
+++ b/drivers/soc/fsl/qbman/qman.c
@@ -1164,6 +1164,7 @@  static int drain_mr_fqrni(struct qm_portal *p)
 {
 	const union qm_mr_entry *msg;
 loop:
+	qm_mr_pvb_update(p);
 	msg = qm_mr_current(p);
 	if (!msg) {
 		/*
@@ -1180,7 +1181,8 @@  static int drain_mr_fqrni(struct qm_portal *p)
 		 * entries well before the ring has been fully consumed, so
 		 * we're being *really* paranoid here.
 		 */
-		msleep(1);
+		mdelay(1);
+		qm_mr_pvb_update(p);
 		msg = qm_mr_current(p);
 		if (!msg)
 			return 0;