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net/stmmac: Apply TBS config only to used queues

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While opening stmmac driver, there is enabling of TBS (Time-Based Scheduling)
option in dma config. Currently this is executed for all possible TX queues via
MTL_MAX_TX_QUEUES macro, but actual number of queues used might differ.
While setting this is generally harmless, since memory for MTL_MAX_TX_QUEUES
is allocated, it is incorrect, because it prepares config for unused queues.

Change this to apply tbs config only to tx_queues_to_use.

Co-developed-by: Chang-Sub Lee <cs0617.lee@samsung.com>
Signed-off-by: Chang-Sub Lee <cs0617.lee@samsung.com>
Signed-off-by: Jakub Raczynski <j.raczynski@samsung.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20260611113358.3379518-2-j.raczynski@samsung.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Jakub Raczynski 2026-06-11 13:33:57 +02:00 committed by Jakub Kicinski
parent 8f4695fb67
commit 8b10877d9d
1 changed files with 1 additions and 1 deletions
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2
drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
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@ -4142,7 +4142,7 @@ static int __stmmac_open(struct net_device *dev,
u8 chan;
int ret;
for (int i = 0; i < MTL_MAX_TX_QUEUES; i++)
for (int i = 0; i < priv->plat->tx_queues_to_use; i++)
if (priv->dma_conf.tx_queue[i].tbs & STMMAC_TBS_EN)
dma_conf->tx_queue[i].tbs = priv->dma_conf.tx_queue[i].tbs;
memcpy(&priv->dma_conf, dma_conf, sizeof(*dma_conf));