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mirror-linux/drivers/net
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Larysa Zaremba 75d9228982 libeth, idpf: use truesize as XDP RxQ info frag_size 
The only user of frag_size field in XDP RxQ info is
bpf_xdp_frags_increase_tail(). It clearly expects whole buffer size instead
of DMA write size. Different assumptions in idpf driver configuration lead
to negative tailroom.

To make it worse, buffer sizes are not actually uniform in idpf when
splitq is enabled, as there are several buffer queues, so rxq->rx_buf_size
is meaningless in this case.

Use truesize of the first bufq in AF_XDP ZC, as there is only one. Disable
growing tail for regular splitq.

Fixes: ac8a861f63 ("idpf: prepare structures to support XDP")
Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>
Signed-off-by: Larysa Zaremba <larysa.zaremba@intel.com>
Link: https://patch.msgid.link/20260305111253.2317394-8-larysa.zaremba@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 		2026-03-05 08:02:05 -08:00
..
arcnet Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
bonding bpf/bonding: reject vlan+srcmac xmit_hash_policy change when XDP is loaded 2026-03-03 10:47:37 +01:00
caif treewide: Replace kmalloc with kmalloc_obj for non-scalar types 2026-02-21 01:02:28 -08:00
can can: gs_usb: gs_can_open(): always configure bitrates before starting device 2026-03-02 11:09:36 +01:00
dsa net: dsa: realtek: rtl8365mb: fix rtl8365mb_phy_ocp_write return value 2026-03-02 18:32:40 -08:00
ethernet libeth, idpf: use truesize as XDP RxQ info frag_size 2026-03-05 08:02:05 -08:00
fddi
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fjes Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
hamradio Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
hyperv Convert more 'alloc_obj' cases to default GFP_KERNEL arguments 2026-02-21 20:03:00 -08:00
ieee802154 Convert more 'alloc_obj' cases to default GFP_KERNEL arguments 2026-02-21 20:03:00 -08:00
ipa Convert more 'alloc_obj' cases to default GFP_KERNEL arguments 2026-02-21 20:03:00 -08:00
ipvlan Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
mctp Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
mdio
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netdevsim Convert remaining multi-line kmalloc_obj/flex GFP_KERNEL uses 2026-02-22 08:26:33 -08:00
ovpn Including fixes from IPsec, Bluetooth and netfilter 2026-02-26 08:00:13 -08:00
pcs Convert more 'alloc_obj' cases to default GFP_KERNEL arguments 2026-02-21 20:03:00 -08:00
phy Including fixes from IPsec, Bluetooth and netfilter 2026-02-26 08:00:13 -08:00
plip
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ppp Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
pse-pd Convert remaining multi-line kmalloc_obj/flex GFP_KERNEL uses 2026-02-22 08:26:33 -08:00
slip Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
team Including fixes from IPsec, Bluetooth and netfilter 2026-02-26 08:00:13 -08:00
thunderbolt
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usb net: usb: r8152: add TRENDnet TUC-ET2G 2026-02-27 19:27:31 -08:00
vmxnet3
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vxlan net: vxlan: fix nd_tbl NULL dereference when IPv6 is disabled 2026-03-05 07:52:56 -08:00
wan Including fixes from IPsec, Bluetooth and netfilter 2026-02-26 08:00:13 -08:00
wireguard Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
wireless wifi: mt76: Fix possible oob access in mt76_connac2_mac_write_txwi_80211() 2026-03-03 12:13:36 +01:00
wwan Convert more 'alloc_obj' cases to default GFP_KERNEL arguments 2026-02-21 20:03:00 -08:00
xen-netback Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
Kconfig printk: add CONFIG_PRINTK dependency for netconsole 2026-02-17 13:04:20 +01:00
LICENSE.SRC
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Makefile
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Space.c
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amt.c treewide: Replace kmalloc with kmalloc_obj for non-scalar types 2026-02-21 01:02:28 -08:00
bareudp.c
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dummy.c
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eql.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
geneve.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
gtp.c treewide: Replace kmalloc with kmalloc_obj for non-scalar types 2026-02-21 01:02:28 -08:00
ifb.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
loopback.c
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macsec.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
macvlan.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
macvtap.c
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mdio.c
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mhi_net.c
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mii.c
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net_failover.c net: remove unnecessary module_init/exit functions 2026-02-02 17:25:23 -08:00
netconsole.c netconsole: fix sysdata_release_enabled_show checking wrong flag 2026-03-03 17:23:50 -08:00
netkit.c treewide: Replace kmalloc with kmalloc_obj for non-scalar types 2026-02-21 01:02:28 -08:00
nlmon.c
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ntb_netdev.c
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pfcp.c
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rionet.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
sungem_phy.c
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tap.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
tun.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
tun_vnet.h
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veth.c treewide: Replace kmalloc with kmalloc_obj for non-scalar types 2026-02-21 01:02:28 -08:00
virtio_net.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
vrf.c treewide: Replace kmalloc with kmalloc_obj for non-scalar types 2026-02-21 01:02:28 -08:00
vsockmon.c
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xen-netfront.c Convert more 'alloc_obj' cases to default GFP_KERNEL arguments 2026-02-21 20:03:00 -08:00