linux-kernel - [PATCH v4 12/28] soc: fsl: cpm1: qmc: Remove no more needed checks from qmc_check

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Message-ID: <cfe9f648f849526b1aac01ca13ee7e5f3f51a3e5.1692376361.git.christophe.leroy@csgroup.eu>
Date:   Fri, 18 Aug 2023 18:39:06 +0200
From:   Christophe Leroy <christophe.leroy@...roup.eu>
To:     Herve Codina <herve.codina@...tlin.com>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>, Andrew Lunn <andrew@...n.ch>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>, Lee Jones <lee@...nel.org>,
        Linus Walleij <linus.walleij@...aro.org>,
        Qiang Zhao <qiang.zhao@....com>, Li Yang <leoyang.li@....com>,
        Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>,
        Shengjiu Wang <shengjiu.wang@...il.com>,
        Xiubo Li <Xiubo.Lee@...il.com>,
        Fabio Estevam <festevam@...il.com>,
        Nicolin Chen <nicoleotsuka@...il.com>,
        Christophe Leroy <christophe.leroy@...roup.eu>,
        Randy Dunlap <rdunlap@...radead.org>
Cc:     netdev@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-gpio@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        alsa-devel@...a-project.org,
        Thomas Petazzoni <thomas.petazzoni@...tlin.com>
Subject: [PATCH v4 12/28] soc: fsl: cpm1: qmc: Remove no more needed checks from qmc_check_chans()

From: Herve Codina <herve.codina@...tlin.com>

The newly introduced qmc_chan_setup_tsa* functions check that the
channel entries are not already used.
These checks are also performed by qmc_check_chans() and are no more
needed.

Remove them from qmc_check_chans().

Signed-off-by: Herve Codina <herve.codina@...tlin.com>
Reviewed-by: Christophe Leroy <christophe.leroy@...roup.eu>
Signed-off-by: Christophe Leroy <christophe.leroy@...roup.eu>
---
 drivers/soc/fsl/qe/qmc.c | 20 --------------------
 1 file changed, 20 deletions(-)

diff --git a/drivers/soc/fsl/qe/qmc.c b/drivers/soc/fsl/qe/qmc.c
index bddff0b74252..2416408bb7e7 100644
--- a/drivers/soc/fsl/qe/qmc.c
+++ b/drivers/soc/fsl/qe/qmc.c
@@ -884,10 +884,7 @@ EXPORT_SYMBOL(qmc_chan_reset);
 static int qmc_check_chans(struct qmc *qmc)
 {
 	struct tsa_serial_info info;
-	bool is_one_table = false;
 	struct qmc_chan *chan;
-	u64 tx_ts_mask = 0;
-	u64 rx_ts_mask = 0;
 	u64 tx_ts_assigned_mask;
 	u64 rx_ts_assigned_mask;
 	int ret;
@@ -911,7 +908,6 @@ static int qmc_check_chans(struct qmc *qmc)
 			dev_err(qmc->dev, "Number of TSA Tx/Rx TS assigned are not equal\n");
 			return -EINVAL;
 		}
-		is_one_table = true;
 	}
 
 	tx_ts_assigned_mask = info.nb_tx_ts == 64 ? U64_MAX : (((u64)1) << info.nb_tx_ts) - 1;
@@ -922,27 +918,11 @@ static int qmc_check_chans(struct qmc *qmc)
 			dev_err(qmc->dev, "chan %u uses TSA unassigned Tx TS\n", chan->id);
 			return -EINVAL;
 		}
-		if (tx_ts_mask & chan->tx_ts_mask) {
-			dev_err(qmc->dev, "chan %u uses an already used Tx TS\n", chan->id);
-			return -EINVAL;
-		}
 
 		if (chan->rx_ts_mask > rx_ts_assigned_mask) {
 			dev_err(qmc->dev, "chan %u uses TSA unassigned Rx TS\n", chan->id);
 			return -EINVAL;
 		}
-		if (rx_ts_mask & chan->rx_ts_mask) {
-			dev_err(qmc->dev, "chan %u uses an already used Rx TS\n", chan->id);
-			return -EINVAL;
-		}
-
-		if (is_one_table && (chan->tx_ts_mask != chan->rx_ts_mask)) {
-			dev_err(qmc->dev, "chan %u uses different Rx and Tx TS\n", chan->id);
-			return -EINVAL;
-		}
-
-		tx_ts_mask |= chan->tx_ts_mask;
-		rx_ts_mask |= chan->rx_ts_mask;
 	}
 
 	return 0;
-- 
2.41.0