From a1fcaf07ec718bb1f11e29e952c9a4cb733d57a5 Mon Sep 17 00:00:00 2001
From: Dave Jiang <dave.jiang@intel.com>
Date: Tue, 10 Mar 2020 10:50:30 -0700
Subject: [PATCH] dmaengine: idxd: reflect shadow copy of traffic class programming
Git-commit: a1fcaf07ec718bb1f11e29e952c9a4cb733d57a5
Patch-mainline: v5.7-rc1
References: jsc#SLE-12688

The traffic class are set to -1 at initialization until the user programs
them. If the user choose not to, the driver will program appropriate
defaults. The driver also needs to update the shadowed copies of the values
after doing the programming.

Fixes: c52ca478233c ("dmaengine: idxd: add configuration component of driver")
Reported-by: Yixin Zhang <yixin.zhang@intel.com>
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/158386263076.10898.4586509576813094559.stgit@djiang5-desk3.ch.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 drivers/dma/idxd/device.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/dma/idxd/device.c b/drivers/dma/idxd/device.c
index ada69e722f84..f6f49f0f6fae 100644
--- a/drivers/dma/idxd/device.c
+++ b/drivers/dma/idxd/device.c
@@ -584,11 +584,11 @@ static void idxd_group_flags_setup(struct idxd_device *idxd)
 		struct idxd_group *group = &idxd->groups[i];
 
 		if (group->tc_a == -1)
-			group->grpcfg.flags.tc_a = 0;
+			group->tc_a = group->grpcfg.flags.tc_a = 0;
 		else
 			group->grpcfg.flags.tc_a = group->tc_a;
 		if (group->tc_b == -1)
-			group->grpcfg.flags.tc_b = 1;
+			group->tc_b = group->grpcfg.flags.tc_b = 1;
 		else
 			group->grpcfg.flags.tc_b = group->tc_b;
 		group->grpcfg.flags.use_token_limit = group->use_token_limit;
-- 
2.16.4