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net: airoha: Fix always-true condition in PPE1 queue reservation loop

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In airoha_fe_pse_ports_init(), the inner condition for PPE1 queue
reservation is identical to the for-loop bound, making it always true
and the else branch dead code:

  for (q = 0; q < pse_port_num_queues[FE_PSE_PORT_PPE1]; q++) {
      if (q < pse_port_num_queues[FE_PSE_PORT_PPE1])  /* always true */
          set RSV_PAGES;
      else
          set 0;  /* unreachable */
  }

The intended behavior is to reserve pages only for the first half of
the queues, matching the PPE2 implementation on line 334 which
correctly uses the /2 divisor. Fix the PPE1 condition accordingly.

Fixes: 23020f0493 ("net: airoha: Introduce ethernet support for EN7581 SoC")
Signed-off-by: Wayen.Yan <win847@gmail.com>
Acked-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://patch.msgid.link/6a2ca3de.ad59c0a6.147df9.2ac1@mx.google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Wayen.Yan 2026-06-13 08:23:12 +08:00 committed by Jakub Kicinski
parent f3d64e5399
commit c66f8511a8
1 changed files with 1 additions and 1 deletions
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2
drivers/net/ethernet/airoha/airoha_eth.c
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@ -311,7 +311,7 @@ static void airoha_fe_pse_ports_init(struct airoha_eth *eth)
PSE_QUEUE_RSV_PAGES);
/* PPE1 */
for (q = 0; q < pse_port_num_queues[FE_PSE_PORT_PPE1]; q++) {
if (q < pse_port_num_queues[FE_PSE_PORT_PPE1])
if (q < pse_port_num_queues[FE_PSE_PORT_PPE1] / 2)
airoha_fe_set_pse_oq_rsv(eth, FE_PSE_PORT_PPE1, q,
PSE_QUEUE_RSV_PAGES);
else