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9131cb44ff
Introduce EN7581 SoC support with currently rfb board supported. This is a new 64bit SoC from Airoha that is currently almost fully supported upstream with only the DTS missing. Setting source-only waiting for the full upstream support to be completed. Link: https://github.com/openwrt/openwrt/pull/16730 Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
47 lines
1.6 KiB
Diff
47 lines
1.6 KiB
Diff
From 1f038d5897fe6b439039fc28420842abcc0d126b Mon Sep 17 00:00:00 2001
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From: Lorenzo Bianconi <lorenzo@kernel.org>
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Date: Wed, 17 Jul 2024 10:15:46 +0200
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Subject: [PATCH] net: airoha: fix error branch in airoha_dev_xmit and
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airoha_set_gdm_ports
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Fix error case management in airoha_dev_xmit routine since we need to
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DMA unmap pending buffers starting from q->head.
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Moreover fix a typo in error case branch in airoha_set_gdm_ports
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routine.
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Fixes: 23020f049327 ("net: airoha: Introduce ethernet support for EN7581 SoC")
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Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
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Reviewed-by: Simon Horman <horms@kernel.org>
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Link: https://patch.msgid.link/b628871bc8ae4861b5e2ab4db90aaf373cbb7cee.1721203880.git.lorenzo@kernel.org
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Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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---
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drivers/net/ethernet/mediatek/airoha_eth.c | 10 ++++++----
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1 file changed, 6 insertions(+), 4 deletions(-)
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--- a/drivers/net/ethernet/mediatek/airoha_eth.c
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+++ b/drivers/net/ethernet/mediatek/airoha_eth.c
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@@ -977,7 +977,7 @@ static int airoha_set_gdm_ports(struct a
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return 0;
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error:
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- for (i--; i >= 0; i++)
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+ for (i--; i >= 0; i--)
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airoha_set_gdm_port(eth, port_list[i], false);
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return err;
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@@ -2432,9 +2432,11 @@ static netdev_tx_t airoha_dev_xmit(struc
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return NETDEV_TX_OK;
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error_unmap:
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- for (i--; i >= 0; i++)
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- dma_unmap_single(dev->dev.parent, q->entry[i].dma_addr,
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- q->entry[i].dma_len, DMA_TO_DEVICE);
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+ for (i--; i >= 0; i--) {
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+ index = (q->head + i) % q->ndesc;
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+ dma_unmap_single(dev->dev.parent, q->entry[index].dma_addr,
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+ q->entry[index].dma_len, DMA_TO_DEVICE);
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+ }
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spin_unlock_bh(&q->lock);
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error:
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