From d2d62615396fa96fc8d520c8fe0ddd29f18b753b Mon Sep 17 00:00:00 2001
From: Vladimir Oltean <vladimir.oltean@nxp.com>
Date: Mon, 8 Nov 2021 22:28:54 +0200
Subject: [PATCH] net: stmmac: allow a tc-taprio base-time of zero
Git-commit: f64ab8e4f368f48afb08ae91928e103d17b235e9
Patch-mainline: v5.16-rc1
References: stable-5.14.19
[ Upstream commit f64ab8e4f368f48afb08ae91928e103d17b235e9 ]
Commit fe28c53ed71d ("net: stmmac: fix taprio configuration when
base_time is in the past") allowed some base time values in the past,
but apparently not all, the base-time value of 0 (Jan 1st 1970) is still
explicitly denied by the driver.
Remove the bogus check.
Fixes: b60189e0392f ("net: stmmac: Integrate EST with TAPRIO scheduler API")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Kurt Kanzenbach <kurt@linutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c
index 8160087ee92f..1c4ea0b1b845 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c
@@ -786,8 +786,6 @@ static int tc_setup_taprio(struct stmmac_priv *priv,
goto disable;
if (qopt->num_entries >= dep)
return -EINVAL;
- if (!qopt->base_time)
- return -ERANGE;
if (!qopt->cycle_time)
return -ERANGE;
--
2.26.2