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Message-Id: <20250521-airopha-desc-sram-v3-2-a6e9b085b4f0@kernel.org>
Date: Wed, 21 May 2025 09:16:37 +0200
From: Lorenzo Bianconi <lorenzo@...nel.org>
To: Andrew Lunn <andrew+netdev@...n.ch>,
"David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>,
Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>, Lorenzo Bianconi <lorenzo@...nel.org>
Cc: linux-arm-kernel@...ts.infradead.org,
linux-mediatek@...ts.infradead.org, netdev@...r.kernel.org,
devicetree@...r.kernel.org
Subject: [PATCH net-next v3 2/4] net: airoha: Do not store hfwd references
in airoha_qdma struct
Since hfwd descriptor and buffer queues are allocated via
dmam_alloc_coherent() we do not need to store their references
in airoha_qdma struct. This patch does not introduce any logical changes,
just code clean-up.
Signed-off-by: Lorenzo Bianconi <lorenzo@...nel.org>
---
drivers/net/ethernet/airoha/airoha_eth.c | 8 ++------
drivers/net/ethernet/airoha/airoha_eth.h | 6 ------
2 files changed, 2 insertions(+), 12 deletions(-)
diff --git a/drivers/net/ethernet/airoha/airoha_eth.c b/drivers/net/ethernet/airoha/airoha_eth.c
index 16c7896f931fd9532aa3b8cc78f41afc676aa117..5f7cbbcbb1d469836dfcea95137c960bfd076744 100644
--- a/drivers/net/ethernet/airoha/airoha_eth.c
+++ b/drivers/net/ethernet/airoha/airoha_eth.c
@@ -1081,17 +1081,13 @@ static int airoha_qdma_init_hfwd_queues(struct airoha_qdma *qdma)
int size;
size = HW_DSCP_NUM * sizeof(struct airoha_qdma_fwd_desc);
- qdma->hfwd.desc = dmam_alloc_coherent(eth->dev, size, &dma_addr,
- GFP_KERNEL);
- if (!qdma->hfwd.desc)
+ if (!dmam_alloc_coherent(eth->dev, size, &dma_addr, GFP_KERNEL))
return -ENOMEM;
airoha_qdma_wr(qdma, REG_FWD_DSCP_BASE, dma_addr);
size = AIROHA_MAX_PACKET_SIZE * HW_DSCP_NUM;
- qdma->hfwd.q = dmam_alloc_coherent(eth->dev, size, &dma_addr,
- GFP_KERNEL);
- if (!qdma->hfwd.q)
+ if (!dmam_alloc_coherent(eth->dev, size, &dma_addr, GFP_KERNEL))
return -ENOMEM;
airoha_qdma_wr(qdma, REG_FWD_BUF_BASE, dma_addr);
diff --git a/drivers/net/ethernet/airoha/airoha_eth.h b/drivers/net/ethernet/airoha/airoha_eth.h
index 531a3c49c1562a986111a1ce1c215c8751c16e09..3e03ae9a5d0d21c0d8d717f2a282ff06ef3b9fbf 100644
--- a/drivers/net/ethernet/airoha/airoha_eth.h
+++ b/drivers/net/ethernet/airoha/airoha_eth.h
@@ -513,12 +513,6 @@ struct airoha_qdma {
struct airoha_queue q_tx[AIROHA_NUM_TX_RING];
struct airoha_queue q_rx[AIROHA_NUM_RX_RING];
-
- /* descriptor and packet buffers for qdma hw forward */
- struct {
- void *desc;
- void *q;
- } hfwd;
};
struct airoha_gdm_port {
--
2.49.0
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