From: Thomas Fourier <fourier.thomas@gmail.com>
Cc: Thomas Fourier <fourier.thomas@gmail.com>,
Potnuri Bharat Teja <bharat@chelsio.com>,
Andrew Lunn <andrew+netdev@lunn.ch>,
"David S. Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
Santosh Rastapur <santosh@chelsio.com>,
Arjun Vynipadath <arjun@chelsio.com>,
Michael Werner <werner@chelsio.com>,
Ganesh GR <ganeshgr@chelsio.com>,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH net] ethernet: cxgb4: Fix dma_unmap_sg() nents value
Date: Mon, 23 Jun 2025 14:25:55 +0200 [thread overview]
Message-ID: <20250623122557.116906-2-fourier.thomas@gmail.com> (raw)
The dma_unmap_sg() functions should be called with the same nents as the
dma_map_sg(), not the value the map function returned.
Fixes: 8b4e6b3ca2ed ("cxgb4: Add HMA support")
Signed-off-by: Thomas Fourier <fourier.thomas@gmail.com>
---
drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
index 51395c96b2e9..73bb1f413761 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
@@ -3998,7 +3998,7 @@ static void adap_free_hma_mem(struct adapter *adapter)
if (adapter->hma.flags & HMA_DMA_MAPPED_FLAG) {
dma_unmap_sg(adapter->pdev_dev, adapter->hma.sgt->sgl,
- adapter->hma.sgt->nents, DMA_BIDIRECTIONAL);
+ adapter->hma.sgt->orig_nents, DMA_BIDIRECTIONAL);
adapter->hma.flags &= ~HMA_DMA_MAPPED_FLAG;
}
--
2.43.0
next reply other threads:[~2025-06-23 12:26 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-06-23 12:25 Thomas Fourier [this message]
2025-06-24 15:17 ` [PATCH net] ethernet: cxgb4: Fix dma_unmap_sg() nents value Potnuri Bharat Teja
2025-06-25 13:27 ` Thomas Fourier
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