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netmem, devmem, tcp: access pp fields through @desc in net_iov

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Convert all the legacy code directly accessing the pp fields in net_iov
to access them through @desc in net_iov.

Signed-off-by: Byungchul Park <byungchul@sk.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Byungchul Park
2025-11-26 13:36:46 +09:00
committed by Jakub Kicinski
parent db4029859d
commit df59bb5b9a
3 changed files with 6 additions and 6 deletions
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4
include/linux/skbuff.h
View File

@@ -3778,8 +3778,8 @@ static inline dma_addr_t __skb_frag_dma_map(struct device *dev,
enum dma_data_direction dir)
{
if (skb_frag_is_net_iov(frag)) {
return netmem_to_net_iov(frag->netmem)->dma_addr + offset +
frag->offset;
return netmem_to_net_iov(frag->netmem)->desc.dma_addr +
offset + frag->offset;
}
return dma_map_page(dev, skb_frag_page(frag),
skb_frag_off(frag) + offset, size, dir);

6
net/core/devmem.c
View File

@@ -97,9 +97,9 @@ net_devmem_alloc_dmabuf(struct net_devmem_dmabuf_binding *binding)
index = offset / PAGE_SIZE;
niov = &owner->area.niovs[index];
niov->pp_magic = 0;
niov->pp = NULL;
atomic_long_set(&niov->pp_ref_count, 0);
niov->desc.pp_magic = 0;
niov->desc.pp = NULL;
atomic_long_set(&niov->desc.pp_ref_count, 0);
return niov;
}

2
net/ipv4/tcp.c
View File

@@ -2587,7 +2587,7 @@ static int tcp_recvmsg_dmabuf(struct sock *sk, const struct sk_buff *skb,
if (err)
goto out;
atomic_long_inc(&niov->pp_ref_count);
atomic_long_inc(&niov->desc.pp_ref_count);
tcp_xa_pool.netmems[tcp_xa_pool.idx++] = skb_frag_netmem(frag);
sent += copy;