* Re: [PATCH net v2] net: airoha: Fix possible TX queue stall in airoha_qdma_tx_napi_poll()
From: Simon Horman @ 2026-04-19 16:12 UTC (permalink / raw)
To: Lorenzo Bianconi
Cc: Andrew Lunn, David S. Miller, Eric Dumazet, Jakub Kicinski,
Paolo Abeni, linux-arm-kernel, linux-mediatek, netdev
In-Reply-To: <20260416-airoha-txq-potential-stall-v2-1-42c732074540@kernel.org>
On Thu, Apr 16, 2026 at 12:30:12PM +0200, Lorenzo Bianconi wrote:
> Since multiple net_device TX queues can share the same hw QDMA TX queue,
> there is no guarantee we have inflight packets queued in hw belonging to a
> net_device TX queue stopped in the xmit path because hw QDMA TX queue
> can be full. In this corner case the net_device TX queue will never be
> re-activated. In order to avoid any potential net_device TX queue stall,
> we need to wake all the net_device TX queues feeding the same hw QDMA TX
> queue in airoha_qdma_tx_napi_poll routine.
>
> Fixes: 23020f0493270 ("net: airoha: Introduce ethernet support for EN7581 SoC")
> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
> ---
> Changes in v2:
> - Add txq_stopped parameter to avoid any possible corner cases where the
> netdev queue stalls.
> - Link to v1: https://lore.kernel.org/r/20260413-airoha-txq-potential-stall-v1-1-7830363b1543@kernel.org
Reviewed-by: Simon Horman <horms@kernel.org>
FTR, I believe Sashiko's review does not need to block progress of this
patch as it flags pre-existing conditions.
^ permalink raw reply
* Re: [PATCH net-next v3 12/12] selftests: net: Add a test for BIG TCP in UDP tunnels
From: Alice Mikityanska @ 2026-04-19 16:24 UTC (permalink / raw)
To: Willem de Bruijn
Cc: Alice Mikityanska, Daniel Borkmann, David S. Miller, Eric Dumazet,
Jakub Kicinski, Paolo Abeni, Xin Long, David Ahern,
Nikolay Aleksandrov, Shuah Khan, Stanislav Fomichev, Andrew Lunn,
Simon Horman, Florian Westphal, netdev
In-Reply-To: <willemdebruijn.kernel.cb6bcf72d6ec@gmail.com>
On Thu, 16 Apr 2026 at 14:06, Willem de Bruijn
<willemdebruijn.kernel@gmail.com> wrote:
>
> Alice Mikityanska wrote:
> > From: Alice Mikityanska <alice@isovalent.com>
> >
> > The test sets up VXLAN and GENEVE tunnels over IPv4 and IPv6 and runs
> > IPv4 and IPv6 traffic through them with BIG TCP enabled. It checks that
> > a non-negligible amount of big aggregated packets are seen in tcpdump.
> >
> > Signed-off-by: Alice Mikityanska <alice@isovalent.com>
> > ---
> > tools/testing/selftests/net/Makefile | 1 +
> > .../testing/selftests/net/big_tcp_tunnels.sh | 145 ++++++++++++++++++
> > 2 files changed, 146 insertions(+)
> > create mode 100755 tools/testing/selftests/net/big_tcp_tunnels.sh
> >
> > diff --git a/tools/testing/selftests/net/Makefile b/tools/testing/selftests/net/Makefile
> > index cab74ebdaced..c8ea9d4bb94f 100644
> > --- a/tools/testing/selftests/net/Makefile
> > +++ b/tools/testing/selftests/net/Makefile
> > @@ -13,6 +13,7 @@ TEST_PROGS := \
> > arp_ndisc_untracked_subnets.sh \
> > bareudp.sh \
> > big_tcp.sh \
> > + big_tcp_tunnels.sh \
> > bind_bhash.sh \
> > bpf_offload.py \
> > bridge_vlan_dump.sh \
> > diff --git a/tools/testing/selftests/net/big_tcp_tunnels.sh b/tools/testing/selftests/net/big_tcp_tunnels.sh
> > new file mode 100755
> > index 000000000000..b819911519ac
> > --- /dev/null
> > +++ b/tools/testing/selftests/net/big_tcp_tunnels.sh
> > @@ -0,0 +1,145 @@
> > +#!/usr/bin/env bash
> > +# SPDX-License-Identifier: GPL-2.0
> > +#
> > +# Testing for IPv4 and IPv6 BIG TCP over VXLAN and GENEVE tunnels.
> > +
> > +SERVER_NS=$(mktemp -u server-XXXXXXXX)
> > +SERVER_IP4="192.168.1.1"
> > +SERVER_IP6="2001:db8::1:1"
> > +SERVER_IP4_TUN="192.168.2.1"
> > +SERVER_IP6_TUN="2001:db8::2:1"
> > +
> > +CLIENT_NS=$(mktemp -u client-XXXXXXXX)
> > +CLIENT_IP4="192.168.1.2"
> > +CLIENT_IP6="2001:db8::1:2"
> > +CLIENT_IP4_TUN="192.168.2.2"
> > +CLIENT_IP6_TUN="2001:db8::2:2"
> > +
> > +PACKETS_THRESHOLD=10000
> > +
> > +# Kselftest framework requirement - SKIP code is 4.
> > +ksft_skip=4
> > +
> > +setup() {
> > + ip netns add "$SERVER_NS"
> > + ip netns add "$CLIENT_NS"
> > + ip -netns "$SERVER_NS" link add link1 type veth peer name link0 netns "$CLIENT_NS"
> > +
> > + ip -netns "$CLIENT_NS" link set link0 up
> > + ip -netns "$CLIENT_NS" addr replace "$CLIENT_IP4/24" dev link0
> > + ip -netns "$CLIENT_NS" addr replace "$CLIENT_IP6/112" dev link0 nodad
> > + ip -netns "$CLIENT_NS" link set link0 \
> > + gso_max_size 196608 gso_ipv4_max_size 196608 \
> > + gro_max_size 196608 gro_ipv4_max_size 196608
> > + ip -netns "$SERVER_NS" link set link1 up
> > + ip -netns "$SERVER_NS" addr replace "$SERVER_IP4/24" dev link1
> > + ip -netns "$SERVER_NS" addr replace "$SERVER_IP6/112" dev link1 nodad
> > + ip -netns "$SERVER_NS" link set link1 \
> > + gso_max_size 196608 gso_ipv4_max_size 196608 \
> > + gro_max_size 196608 gro_ipv4_max_size 196608
> > +
> > + ip netns exec "$SERVER_NS" netserver >/dev/null
> > +}
> > +
> > +setup_tunnel() {
> > + if [ "$2" = 4 ]; then
> > + SERVER_IP="$SERVER_IP4"
> > + CLIENT_IP="$CLIENT_IP4"
> > + echo "Setting up ${1^^} over IPv4"
> > + else
> > + SERVER_IP="$SERVER_IP6"
> > + CLIENT_IP="$CLIENT_IP6"
> > + echo "Setting up ${1^^} over IPv6"
> > + fi
> > +
> > + if [ "$1" = vxlan ]; then
> > + ip -netns "$CLIENT_NS" link add tun0 type vxlan \
> > + id 5001 remote "$SERVER_IP" local "$CLIENT_IP" dev link0 dstport 4789
> > + else
> > + ip -netns "$CLIENT_NS" link add tun0 type geneve \
> > + id 5001 remote "$SERVER_IP"
> > + fi
> > + ip -netns "$CLIENT_NS" link set tun0 up
> > + ip -netns "$CLIENT_NS" addr replace "$CLIENT_IP4_TUN/24" dev tun0
> > + ip -netns "$CLIENT_NS" addr replace "$CLIENT_IP6_TUN/112" dev tun0 nodad
> > + ip -netns "$CLIENT_NS" link set tun0 \
> > + gso_max_size 196608 gso_ipv4_max_size 196608 \
> > + gro_max_size 196608 gro_ipv4_max_size 196608
> > + if [ "$1" = vxlan ]; then
> > + ip -netns "$SERVER_NS" link add tun1 type vxlan \
> > + id 5001 remote "$CLIENT_IP" local "$SERVER_IP" dev link1 dstport 4789
> > + else
> > + ip -netns "$SERVER_NS" link add tun1 type geneve \
> > + id 5001 remote "$CLIENT_IP"
> > + fi
> > + ip -netns "$SERVER_NS" link set tun1 up
> > + ip -netns "$SERVER_NS" addr replace "$SERVER_IP4_TUN/24" dev tun1
> > + ip -netns "$SERVER_NS" addr replace "$SERVER_IP6_TUN/112" dev tun1 nodad
> > + ip -netns "$SERVER_NS" link set tun1 \
> > + gso_max_size 196608 gso_ipv4_max_size 196608 \
> > + gro_max_size 196608 gro_ipv4_max_size 196608
> > +}
> > +
> > +cleanup_tunnel() {
> > + ip -netns "$CLIENT_NS" link del tun0
> > + ip -netns "$SERVER_NS" link del tun1
> > +}
> > +
> > +cleanup() {
> > + ip netns exec "$SERVER_NS" killall netserver
> > + ip netns del "$SERVER_NS"
> > + ip netns del "$CLIENT_NS"
> > +}
> > +
> > +do_test() {
> > + exec 3< <(ip netns exec "$SERVER_NS" tcpdump -nn -i link1 greater 65536 2> /dev/null)
> > + TCPDUMP_SERVER_PID="$!"
> > + exec 4< <(wc -l <&3)
> > + exec 5< <(ip netns exec "$CLIENT_NS" tcpdump -nn -i link0 greater 65536 2> /dev/null)
> > + TCPDUMP_CLIENT_PID="$!"
> > + exec 6< <(wc -l <&5)
> > +
> > + if [ "$1" = 4 ]; then
> > + SERVER_IP="$SERVER_IP4_TUN"
> > + echo "Running IPv4 traffic in the tunnel"
> > + else
> > + SERVER_IP="$SERVER_IP6_TUN"
> > + echo "Running IPv6 traffic in the tunnel"
> > + fi
> > +
> > + ip netns exec "$CLIENT_NS" netperf -t TCP_STREAM -l 5 -H "$SERVER_IP" -- \
> > + -r 80000:80000 > /dev/null
>
> is -r valid for TCP_STREAM
Yes, it controls how much data is sent in one send() syscall. If I set
a smaller size, the kernel will still try to aggregate the packets,
but there will be much fewer BIG TCP packets.
> > + kill "$TCPDUMP_SERVER_PID" "$TCPDUMP_CLIENT_PID"
> > + wait "$TCPDUMP_SERVER_PID" "$TCPDUMP_CLIENT_PID"
> > + PACKETS_SERVER=$(cat <&4)
> > + PACKETS_CLIENT=$(cat <&6)
> > + exec 3>&- 4>&- 5>&- 6>&-
> > +
> > + # One line is empty, each packet is two lines (inner and outer).
> > + echo "Captured BIG TCP GRO packets: $(((PACKETS_SERVER - 1) / 2))"
> > + echo "Captured BIG TCP GSO packets: $(((PACKETS_CLIENT - 1) / 2))"
> > + [ "$PACKETS_SERVER" -gt "$(( PACKETS_THRESHOLD * 2 + 1))" ] || return 1
> > + [ "$PACKETS_CLIENT" -gt "$(( PACKETS_THRESHOLD * 2 + 1))" ] || return 1
> > +}
> > +
> > +if ! netperf -V &> /dev/null; then
> > + echo "SKIP: Could not run test without netperf tool"
> > + exit "$ksft_skip"
> > +fi
> > +
> > +if ! ip link help 2>&1 | grep gso_ipv4_max_size &> /dev/null; then
> > + echo "SKIP: Could not run test without gso/gro_ipv4_max_size supported in ip-link"
> > + exit "$ksft_skip"
> > +fi
> > +
> > +trap cleanup EXIT
> > +setup
> > +for tunnel in vxlan geneve; do
> > + for tun_family in 4 6; do
> > + for traffic_family in 4 6; do
> > + setup_tunnel "$tunnel" "$tun_family" || exit "$?"
> > + do_test "$traffic_family" || exit "$?"
> > + cleanup_tunnel
> > + done
> > + done
> > +done
> > --
> > 2.53.0
> >
>
>
^ permalink raw reply
* [PATCH bpf] bpf: Fix NULL pointer dereference in bpf_skb_fib_lookup()
From: Weiming Shi @ 2026-04-19 17:01 UTC (permalink / raw)
To: Martin KaFai Lau, Daniel Borkmann, Alexei Starovoitov,
Andrii Nakryiko, David S . Miller, Eric Dumazet, Jakub Kicinski,
Paolo Abeni
Cc: John Fastabend, Stanislav Fomichev, Eduard Zingerman, Song Liu,
Yonghong Song, KP Singh, Hao Luo, Jiri Olsa, Simon Horman,
Jesper Dangaard Brouer, bpf, netdev, Xiang Mei, Weiming Shi
When tot_len is not provided by the user, bpf_skb_fib_lookup()
resolves the FIB result's output device via dev_get_by_index_rcu()
to check skb forwardability and fill in mtu_result. The returned
pointer is dereferenced without a NULL check. If the device is
concurrently unregistered, dev_get_by_index_rcu() returns NULL and
is_skb_forwardable() crashes at dev->flags:
KASAN: null-ptr-deref in range
[0x00000000000000b0-0x00000000000000b7]
Call Trace:
is_skb_forwardable (include/linux/netdevice.h:4365)
bpf_skb_fib_lookup (net/core/filter.c:6446)
bpf_prog_test_run_skb (net/bpf/test_run.c)
__sys_bpf (kernel/bpf/syscall.c)
Add the missing NULL check, returning -ENODEV to be consistent
with how bpf_ipv4_fib_lookup() and bpf_ipv6_fib_lookup() handle
the same condition.
Fixes: e1850ea9bd9e ("bpf: bpf_fib_lookup return MTU value as output when looked up")
Reported-by: Xiang Mei <xmei5@asu.edu>
Signed-off-by: Weiming Shi <bestswngs@gmail.com>
---
net/core/filter.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/net/core/filter.c b/net/core/filter.c
index 78b548158fb0..3e56b567bd18 100644
--- a/net/core/filter.c
+++ b/net/core/filter.c
@@ -6450,6 +6450,8 @@ BPF_CALL_4(bpf_skb_fib_lookup, struct sk_buff *, skb,
* against MTU of FIB lookup resulting net_device
*/
dev = dev_get_by_index_rcu(net, params->ifindex);
+ if (!dev)
+ return -ENODEV;
if (!is_skb_forwardable(dev, skb))
rc = BPF_FIB_LKUP_RET_FRAG_NEEDED;
--
2.43.0
^ permalink raw reply related
* Re: [PATCH] net: dsa: realtek: rtl8365mb: fix mode mask calculation
From: Luiz Angelo Daros de Luca @ 2026-04-19 19:08 UTC (permalink / raw)
To: Mieczyslaw Nalewaj, alrazj.abdulkader; +Cc: netdev
In-Reply-To: <c1519cfa-5a66-48b6-a578-e0ac03a57484@yahoo.com>
> The RTL8365MB_DIGITAL_INTERFACE_SELECT_MODE_MASK macro was shifting
> the 4-bit mask (0xF) by only (_extint % 2) bits instead of
> (_extint % 2) * 4. This caused the mask to overlap with the adjacent
> nibble when configuring odd-numbered external interfaces, selecting
> the wrong bits entirely.
>
> Align the shift calculation with the existing ...MODE_OFFSET macro.
>
> Signed-off-by: Abdulkader Alrezej <alrazj.abdulkader@gmail.com>
> Signed-off-by: Mieczyslaw Nalewaj <namiltd@yahoo.com>
> ---
> drivers/net/dsa/realtek/rtl8365mb.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/net/dsa/realtek/rtl8365mb.c b/drivers/net/dsa/realtek/rtl8365mb.c
> index ad7044b295ec..b85c99216648 100644
> --- a/drivers/net/dsa/realtek/rtl8365mb.c
> +++ b/drivers/net/dsa/realtek/rtl8365mb.c
> @@ -216,7 +216,7 @@
> (_extint) == 2 ? RTL8365MB_DIGITAL_INTERFACE_SELECT_REG1 : \
> 0x0)
> #define RTL8365MB_DIGITAL_INTERFACE_SELECT_MODE_MASK(_extint) \
> - (0xF << (((_extint) % 2)))
> + (0xF << (((_extint) % 2) * 4))
> #define RTL8365MB_DIGITAL_INTERFACE_SELECT_MODE_OFFSET(_extint) \
> (((_extint) % 2) * 4)
>
Hello Abdulkader and Mieczyslaw,
This bug has been present since the subdriver submission. I renamed
the macro (d18b59f48b318) but I didn't change the logic. Maybe we just
got luck with defaults. The patch is good. You still missed the Fixes
tag. Just add before the first Signed-off-by:
Fixes: 4af2950c50c8 ("net: dsa: realtek-smi: add rtl8365mb subdriver
for RTL8365MB-VC")
With that addiction, you can submit v2 with my Reviewed-by:
Regards,
Luiz
^ permalink raw reply
* [PATCH] idpf: do not perform flow ops when netdev is detached
From: Li Li @ 2026-04-19 19:25 UTC (permalink / raw)
To: Tony Nguyen, Przemek Kitszel, David S. Miller, Jakub Kicinski,
Eric Dumazet, intel-wired-lan
Cc: netdev, linux-kernel, David Decotigny, Anjali Singhai,
Sridhar Samudrala, Brian Vazquez, Li Li, emil.s.tantilov
Even though commit 2e281e1155fc ("idpf: detach and close netdevs while
handling a reset") prevents ethtool -N/-n operations to operate on
detached netdevs, we found that out-of-tree workflows like OpenOnload
can bypass ethtool core locks and call idpf_set_rxnfc directly during
an idpf HW reset. When this happens, we could get kernel crashes like
the following:
[ 4045.787439] BUG: kernel NULL pointer dereference, address: 0000000000000070
[ 4045.794420] #PF: supervisor read access in kernel mode
[ 4045.799580] #PF: error_code(0x0000) - not-present page
[ 4045.804739] PGD 0
[ 4045.806772] Oops: Oops: 0000 [#1] SMP NOPTI
...
[ 4045.836425] Workqueue: onload-wqueue oof_do_deferred_work_fn [onload]
[ 4045.842926] RIP: 0010:idpf_del_flow_steer+0x24/0x170 [idpf]
...
[ 4045.946323] Call Trace:
[ 4045.948796] <TASK>
[ 4045.950915] ? show_trace_log_lvl+0x1b0/0x2f0
[ 4045.955293] ? show_trace_log_lvl+0x1b0/0x2f0
[ 4045.959672] ? idpf_set_rxnfc+0x6f/0x80 [idpf]
[ 4045.964142] ? __die_body.cold+0x8/0x12
[ 4045.968000] ? page_fault_oops+0x148/0x160
[ 4045.972117] ? exc_page_fault+0x6f/0x160
[ 4045.976060] ? asm_exc_page_fault+0x22/0x30
[ 4045.980262] ? idpf_del_flow_steer+0x24/0x170 [idpf]
[ 4045.985245] idpf_set_rxnfc+0x6f/0x80 [idpf]
[ 4045.989535] af_xdp_filter_remove+0x7c/0xb0 [sfc_resource]
[ 4045.995069] oo_hw_filter_clear_hwports+0x6f/0xa0 [onload]
[ 4046.000589] oo_hw_filter_update+0x65/0x210 [onload]
[ 4046.005587] oof_hw_filter_update.constprop.0+0xe7/0x140 [onload]
[ 4046.011716] oof_manager_update_all_filters+0xad/0x270 [onload]
[ 4046.017671] __oof_do_deferred_work+0x15e/0x190 [onload]
[ 4046.023014] oof_do_deferred_work+0x2c/0x40 [onload]
[ 4046.028018] oof_do_deferred_work_fn+0x12/0x30 [onload]
[ 4046.033277] process_one_work+0x174/0x330
[ 4046.037304] worker_thread+0x246/0x390
[ 4046.041074] ? __pfx_worker_thread+0x10/0x10
[ 4046.045364] kthread+0xf6/0x240
[ 4046.048530] ? __pfx_kthread+0x10/0x10
[ 4046.052297] ret_from_fork+0x2d/0x50
[ 4046.055896] ? __pfx_kthread+0x10/0x10
[ 4046.059664] ret_from_fork_asm+0x1a/0x30
[ 4046.063613] </TASK>
To prevent this, we need to add checks in idpf_set_rxnfc and
idpf_get_rxnfc to error out if the netdev is already detached.
Tested: implemented the following patch to synthetically force idpf into
a HW reset:
diff --git a/drivers/net/ethernet/intel/idpf/idpf_txrx.c b/drivers/net/ethernet/intel/idpf/idpf_txrx.c
index 4fc0bb14c5b1..27476d57bcf0 100644
--- a/drivers/net/ethernet/intel/idpf/idpf_txrx.c
+++ b/drivers/net/ethernet/intel/idpf/idpf_txrx.c
@@ -10,6 +10,9 @@
#define idpf_tx_buf_next(buf) (*(u32 *)&(buf)->priv)
LIBETH_SQE_CHECK_PRIV(u32);
+static bool SIMULATE_TX_TIMEOUT;
+module_param(SIMULATE_TX_TIMEOUT, bool, 0644);
+
/**
* idpf_chk_linearize - Check if skb exceeds max descriptors per packet
* @skb: send buffer
@@ -46,6 +49,8 @@ void idpf_tx_timeout(struct net_device *netdev, unsigned int txqueue)
adapter->tx_timeout_count++;
+ SIMULATE_TX_TIMEOUT = false;
+
netdev_err(netdev, "Detected Tx timeout: Count %d, Queue %d\n",
adapter->tx_timeout_count, txqueue);
if (!idpf_is_reset_in_prog(adapter)) {
@@ -2225,6 +2230,8 @@ static bool idpf_tx_clean_complq(struct idpf_compl_queue *complq, int budget,
goto fetch_next_desc;
}
tx_q = complq->txq_grp->txqs[rel_tx_qid];
+ if (unlikely(SIMULATE_TX_TIMEOUT && (tx_q->idx % 2 == 1)))
+ goto fetch_next_desc;
/* Determine completion type */
ctype = le16_get_bits(tx_desc->common.qid_comptype_gen,
diff --git a/drivers/net/ethernet/intel/idpf/idpf_virtchnl.c b/drivers/net/ethernet/intel/idpf/idpf_virtchnl.c
index be66f9b2e101..ba5da2a86c15 100644
--- a/drivers/net/ethernet/intel/idpf/idpf_virtchnl.c
+++ b/drivers/net/ethernet/intel/idpf/idpf_virtchnl.c
@@ -8,6 +8,9 @@
#include "idpf_virtchnl.h"
#include "idpf_ptp.h"
+static bool VIRTCHNL_FAILED;
+module_param(VIRTCHNL_FAILED, bool, 0644);
+
/**
* struct idpf_vc_xn_manager - Manager for tracking transactions
* @ring: backing and lookup for transactions
@@ -3496,6 +3499,11 @@ int idpf_vc_core_init(struct idpf_adapter *adapter)
switch (adapter->state) {
case __IDPF_VER_CHECK:
err = idpf_send_ver_msg(adapter);
+
+ if (unlikely(VIRTCHNL_FAILED)) {
+ err = -EIO;
+ }
+
switch (err) {
case 0:
/* success, move state machine forward */
And tested by writing 1 to /sys/module/idpf/parameters/VIRTCHNL_FAILED
and /sys/module/idpf/parameters/SIMULATE_TX_TIMEOUT, and running
idpf_get_rxnfc() right after the HW reset.
Without the patch: encountered NULL pointer and kernel crash.
With the patch: no crashes.
Fixes: 2e281e1155fc ("idpf: detach and close netdevs while handling a reset")
Signed-off-by: Li Li <boolli@google.com>
---
drivers/net/ethernet/intel/idpf/idpf_ethtool.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/net/ethernet/intel/idpf/idpf_ethtool.c b/drivers/net/ethernet/intel/idpf/idpf_ethtool.c
index bb99d9e7c65d..8368a7e6a754 100644
--- a/drivers/net/ethernet/intel/idpf/idpf_ethtool.c
+++ b/drivers/net/ethernet/intel/idpf/idpf_ethtool.c
@@ -43,6 +43,9 @@ static int idpf_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd,
unsigned int cnt = 0;
int err = 0;
+ if (!netdev || !netif_device_present(netdev))
+ return -ENODEV;
+
idpf_vport_ctrl_lock(netdev);
vport = idpf_netdev_to_vport(netdev);
vport_config = np->adapter->vport_config[np->vport_idx];
@@ -349,6 +352,9 @@ static int idpf_set_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd)
{
int ret = -EOPNOTSUPP;
+ if (!netdev || !netif_device_present(netdev))
+ return -ENODEV;
+
idpf_vport_ctrl_lock(netdev);
switch (cmd->cmd) {
case ETHTOOL_SRXCLSRLINS:
--
2.54.0.rc1.513.gad8abe7a5a-goog
^ permalink raw reply related
* Re: [PATCH] Document TCP_DEFER_ACCEPT rounding
From: Alejandro Colomar @ 2026-04-19 19:45 UTC (permalink / raw)
To: Josh Triplett; +Cc: linux-man, netdev
In-Reply-To: <43b64cba-a7c5-41ed-8e45-c0508f482687@app.fastmail.com>
[-- Attachment #1: Type: text/plain, Size: 193 bytes --]
Hi Josh,
On 2026-04-16T14:57:19-0700, Josh Triplett wrote:
> Patch attached.
Thanks! I've applied the patch.
Have a lovely night!
Alex
--
<https://www.alejandro-colomar.es>
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^ permalink raw reply
* Re: [PATCH 4/9] iio: magnetometer: yas530: switch to using FIELD_GET_SIGNED()
From: Linus Walleij @ 2026-04-19 20:11 UTC (permalink / raw)
To: Yury Norov
Cc: Thomas Gleixner, Ingo Molnar, Borislav Petkov, Dave Hansen, x86,
H. Peter Anvin, Andy Lutomirski, Peter Zijlstra, Jonathan Cameron,
David Lechner, Nuno Sá, Andy Shevchenko, Ping-Ke Shih,
Richard Cochran, Andrew Lunn, David S. Miller, Eric Dumazet,
Jakub Kicinski, Paolo Abeni, Alexandre Belloni, Yury Norov,
Rasmus Villemoes, Hans de Goede, Sakari Ailus, Salah Triki,
Achim Gratz, Ben Collins, linux-kernel, linux-iio, linux-wireless,
netdev, linux-rtc
In-Reply-To: <20260417173621.368914-5-ynorov@nvidia.com>
On Fri, Apr 17, 2026 at 7:36 PM Yury Norov <ynorov@nvidia.com> wrote:
> Switch from sign_extend32(FIELD_GET()) to the dedicated
> FIELD_GET_SIGNED() and don't calculate the fields length explicitly.
>
> Signed-off-by: Yury Norov <ynorov@nvidia.com>
Very nice,
Reviewed-by: Linus Walleij <linusw@kernel.org>
Yours,
Linus Walleij
^ permalink raw reply
* [PATCH v2] net: dsa: realtek: rtl8365mb: fix mode mask calculation
From: Mieczyslaw Nalewaj @ 2026-04-19 19:37 UTC (permalink / raw)
To: netdev@vger.kernel.org
In-Reply-To: <400a6387-a444-4576-af6d-26be5410bce3.ref@yahoo.com>
The RTL8365MB_DIGITAL_INTERFACE_SELECT_MODE_MASK macro was shifting
the 4-bit mask (0xF) by only (_extint % 2) bits instead of
(_extint % 2) * 4. This caused the mask to overlap with the adjacent
nibble when configuring odd-numbered external interfaces, selecting
the wrong bits entirely.
Align the shift calculation with the existing ...MODE_OFFSET macro.
Fixes: 4af2950c50c8 ("net: dsa: realtek-smi: add rtl8365mb subdriver for RTL8365MB-VC")
Signed-off-by: Abdulkader Alrezej <alrazj.abdulkader@gmail.com>
Signed-off-by: Mieczyslaw Nalewaj <namiltd@yahoo.com>
Reviewed-by: Luiz Angelo Daros de Luca <luizluca@gmail.com>
---
drivers/net/dsa/realtek/rtl8365mb.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/dsa/realtek/rtl8365mb.c b/drivers/net/dsa/realtek/rtl8365mb.c
index ad7044b295ec..b85c99216648 100644
--- a/drivers/net/dsa/realtek/rtl8365mb.c
+++ b/drivers/net/dsa/realtek/rtl8365mb.c
@@ -216,7 +216,7 @@
(_extint) == 2 ? RTL8365MB_DIGITAL_INTERFACE_SELECT_REG1 : \
0x0)
#define RTL8365MB_DIGITAL_INTERFACE_SELECT_MODE_MASK(_extint) \
- (0xF << (((_extint) % 2)))
+ (0xF << (((_extint) % 2) * 4))
#define RTL8365MB_DIGITAL_INTERFACE_SELECT_MODE_OFFSET(_extint) \
(((_extint) % 2) * 4)
--
2.53.0
^ permalink raw reply related
* [PATCH] connector/Kconfig: Enable CONFIG_CONNECTOR by default
From: Qais Yousef @ 2026-04-19 21:42 UTC (permalink / raw)
To: Andrew Lunn, David S . Miller, Eric Dumazet, Jakub Kicinski,
Paolo Abeni
Cc: netdev, linux-kernel, Vincent Guittot, John Stultz,
Steven Rostedt, Qais Yousef
To make new tools that depend on it like schedqos [1] more reliable, it
is important to ensure users can find it by default on all system.
[1] https://lore.kernel.org/lkml/20260415000910.2h5misvwc45bdumu@airbuntu/
Signed-off-by: Qais Yousef <qyousef@layalina.io>
---
drivers/connector/Kconfig | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/connector/Kconfig b/drivers/connector/Kconfig
index 0c2d2aa82d8c..bad247d47146 100644
--- a/drivers/connector/Kconfig
+++ b/drivers/connector/Kconfig
@@ -3,6 +3,7 @@
menuconfig CONNECTOR
tristate "Connector - unified userspace <-> kernelspace linker"
depends on NET
+ default y
help
This is unified userspace <-> kernelspace connector working on top
of the netlink socket protocol.
--
2.34.1
^ permalink raw reply related
* Re: [PATCH RFC bpf-next 1/8] kasan: expose generic kasan helpers
From: Andrey Konovalov @ 2026-04-19 21:48 UTC (permalink / raw)
To: Alexei Starovoitov
Cc: Alexis Lothoré, Alexei Starovoitov, Daniel Borkmann,
Andrii Nakryiko, Martin KaFai Lau, Eduard Zingerman,
Kumar Kartikeya Dwivedi, Song Liu, Yonghong Song, Jiri Olsa,
John Fastabend, David S. Miller, David Ahern, Thomas Gleixner,
Ingo Molnar, Borislav Petkov, Dave Hansen, X86 ML, H. Peter Anvin,
Shuah Khan, Maxime Coquelin, Alexandre Torgue, Andrey Ryabinin,
Alexander Potapenko, Dmitry Vyukov, Vincenzo Frascino,
Andrew Morton, ebpf, Bastien Curutchet, Thomas Petazzoni,
Xu Kuohai, bpf, LKML, Network Development,
open list:KERNEL SELFTEST FRAMEWORK, linux-stm32,
linux-arm-kernel, kasan-dev, linux-mm
In-Reply-To: <CAADnVQKv5y+gq=TnOAEXSqgBRpmHNjwqCfxpLaw5XkcbQ+23bg@mail.gmail.com>
On Tue, Apr 14, 2026 at 5:58 PM Alexei Starovoitov
<alexei.starovoitov@gmail.com> wrote:
>
> I think we're talking past each other.
> We're not interested in KASAN_SW_TAGS or KASAN_HW_TAGS.
> We're not going to modify arm64 JIT at all.
>
> This is purely KASAN_GENRIC and only on x86-64.
> JIT will emit exactly what compilers emit for generic
> which is __asan_load/store. This is as stable ABI as it can get
> and we don't want to deviate from it.
OK, I supposed that's fair. You did throw me off point with your
performance comment. But if you decide to add SW_TAGS support at some
point, I think this discussion needs to be revisited.
But please add a comment saying that those functions are only exposed
for BPF JIT and they are not supposed to be used by other parts of the
kernel. And in case you do end up adding a new config option, guard
the public declarations by a corresponding ifdef.
> The goal here is to find bugs in the verifier.
> If something got past it, that shouldn't have,
> kasan generic on x86-64 is enough.
FWIW, I suspect HW_TAGS KASAN already just works with JITed BPF code.
^ permalink raw reply
* [PATCH] xfrm: ah: account for ESN high bits in async callbacks
From: Michael Bommarito @ 2026-04-19 22:35 UTC (permalink / raw)
To: Steffen Klassert, Herbert Xu, netdev
Cc: David S . Miller, David Ahern, Eric Dumazet, Jakub Kicinski,
Paolo Abeni, Simon Horman, Fan Du, linux-kernel, stable
AH allocates its temporary auth/ICV layout differently when ESN is enabled:
the async ahash setup appends a 4-byte seqhi slot before the ICV or
auth_data area, but the async completion callbacks still reconstruct the
temporary layout as if seqhi were absent.
With an async AH implementation selected, that makes AH copy or compare
the wrong bytes on both the IPv4 and IPv6 paths. In UML repro on IPv4 AH
with ESN and forced async hmac(sha1), ping fails with 100% packet loss,
and the callback logs show the pre-fix drift:
ah4 output_done: esn=1 err=0 icv_off=20 expected_off=24
ah4 input_done: esn=1 auth_off=20 expected_auth_off=24 icv_off=32 expected_icv_off=36
Reconstruct the callback-side layout the same way the setup path built it
by skipping the ESN seqhi slot before locating the saved auth_data or ICV.
Per RFC 4302, the ESN high-order 32 bits participate in the AH ICV
computation, so the async callbacks must account for the seqhi slot.
Post-fix, the same IPv4 AH+ESN+forced-async-hmac(sha1) UML repro shows
the corrected offset (ah4 output_done: esn=1 err=0 icv_off=24
expected_off=24) and ping succeeds; net/ipv4/ah4.o and net/ipv6/ah6.o
build clean at W=1. IPv6 AH+ESN was not exercised at runtime, and the
change has not been tested against a real async hardware AH engine.
Fixes: d4d573d0334d ("{IPv4,xfrm} Add ESN support for AH egress part")
Fixes: d8b2a8600b0e ("{IPv4,xfrm} Add ESN support for AH ingress part")
Fixes: 26dd70c3fad3 ("{IPv6,xfrm} Add ESN support for AH egress part")
Fixes: 8d6da6f32557 ("{IPv6,xfrm} Add ESN support for AH ingress part")
Cc: stable@vger.kernel.org
Assisted-by: Codex:gpt-5-4
Assisted-by: Claude:claude-opus-4-7
Signed-off-by: Michael Bommarito <michael.bommarito@gmail.com>
---
net/ipv4/ah4.c | 14 ++++++++++++--
net/ipv6/ah6.c | 14 ++++++++++++--
2 files changed, 24 insertions(+), 4 deletions(-)
diff --git a/net/ipv4/ah4.c b/net/ipv4/ah4.c
index 5fb812443a08..4366cbac3f06 100644
--- a/net/ipv4/ah4.c
+++ b/net/ipv4/ah4.c
@@ -124,9 +124,14 @@ static void ah_output_done(void *data, int err)
struct iphdr *top_iph = ip_hdr(skb);
struct ip_auth_hdr *ah = ip_auth_hdr(skb);
int ihl = ip_hdrlen(skb);
+ int seqhi_len = 0;
+ __be32 *seqhi;
+ if (x->props.flags & XFRM_STATE_ESN)
+ seqhi_len = sizeof(*seqhi);
iph = AH_SKB_CB(skb)->tmp;
- icv = ah_tmp_icv(iph, ihl);
+ seqhi = (__be32 *)((char *)iph + ihl);
+ icv = ah_tmp_icv(seqhi, seqhi_len);
memcpy(ah->auth_data, icv, ahp->icv_trunc_len);
top_iph->tos = iph->tos;
@@ -270,12 +275,17 @@ static void ah_input_done(void *data, int err)
struct ip_auth_hdr *ah = ip_auth_hdr(skb);
int ihl = ip_hdrlen(skb);
int ah_hlen = (ah->hdrlen + 2) << 2;
+ int seqhi_len = 0;
+ __be32 *seqhi;
if (err)
goto out;
+ if (x->props.flags & XFRM_STATE_ESN)
+ seqhi_len = sizeof(*seqhi);
work_iph = AH_SKB_CB(skb)->tmp;
- auth_data = ah_tmp_auth(work_iph, ihl);
+ seqhi = (__be32 *)((char *)work_iph + ihl);
+ auth_data = ah_tmp_auth(seqhi, seqhi_len);
icv = ah_tmp_icv(auth_data, ahp->icv_trunc_len);
err = crypto_memneq(icv, auth_data, ahp->icv_trunc_len) ? -EBADMSG : 0;
diff --git a/net/ipv6/ah6.c b/net/ipv6/ah6.c
index cb26beea4398..de1e68199a01 100644
--- a/net/ipv6/ah6.c
+++ b/net/ipv6/ah6.c
@@ -317,14 +317,19 @@ static void ah6_output_done(void *data, int err)
struct ipv6hdr *top_iph = ipv6_hdr(skb);
struct ip_auth_hdr *ah = ip_auth_hdr(skb);
struct tmp_ext *iph_ext;
+ int seqhi_len = 0;
+ __be32 *seqhi;
extlen = skb_network_header_len(skb) - sizeof(struct ipv6hdr);
if (extlen)
extlen += sizeof(*iph_ext);
+ if (x->props.flags & XFRM_STATE_ESN)
+ seqhi_len = sizeof(*seqhi);
iph_base = AH_SKB_CB(skb)->tmp;
iph_ext = ah_tmp_ext(iph_base);
- icv = ah_tmp_icv(iph_ext, extlen);
+ seqhi = (__be32 *)((char *)iph_ext + extlen);
+ icv = ah_tmp_icv(seqhi, seqhi_len);
memcpy(ah->auth_data, icv, ahp->icv_trunc_len);
memcpy(top_iph, iph_base, IPV6HDR_BASELEN);
@@ -471,13 +476,18 @@ static void ah6_input_done(void *data, int err)
struct ip_auth_hdr *ah = ip_auth_hdr(skb);
int hdr_len = skb_network_header_len(skb);
int ah_hlen = ipv6_authlen(ah);
+ int seqhi_len = 0;
+ __be32 *seqhi;
if (err)
goto out;
+ if (x->props.flags & XFRM_STATE_ESN)
+ seqhi_len = sizeof(*seqhi);
work_iph = AH_SKB_CB(skb)->tmp;
auth_data = ah_tmp_auth(work_iph, hdr_len);
- icv = ah_tmp_icv(auth_data, ahp->icv_trunc_len);
+ seqhi = (__be32 *)(auth_data + ahp->icv_trunc_len);
+ icv = ah_tmp_icv(seqhi, seqhi_len);
err = crypto_memneq(icv, auth_data, ahp->icv_trunc_len) ? -EBADMSG : 0;
if (err)
--
2.53.0
^ permalink raw reply related
* Re: [PATCH RFC bpf-next 1/8] kasan: expose generic kasan helpers
From: Alexei Starovoitov @ 2026-04-19 22:51 UTC (permalink / raw)
To: Andrey Konovalov
Cc: Alexis Lothoré, Alexei Starovoitov, Daniel Borkmann,
Andrii Nakryiko, Martin KaFai Lau, Eduard Zingerman,
Kumar Kartikeya Dwivedi, Song Liu, Yonghong Song, Jiri Olsa,
John Fastabend, David S. Miller, David Ahern, Thomas Gleixner,
Ingo Molnar, Borislav Petkov, Dave Hansen, X86 ML, H. Peter Anvin,
Shuah Khan, Maxime Coquelin, Alexandre Torgue, Andrey Ryabinin,
Alexander Potapenko, Dmitry Vyukov, Vincenzo Frascino,
Andrew Morton, ebpf, Bastien Curutchet, Thomas Petazzoni,
Xu Kuohai, bpf, LKML, Network Development,
open list:KERNEL SELFTEST FRAMEWORK, linux-stm32,
linux-arm-kernel, kasan-dev, linux-mm
In-Reply-To: <CA+fCnZe-b0Qqbo5gGv3HN20twquQETDfYYkE1r9tPr9zUFbW9Q@mail.gmail.com>
On Sun, Apr 19, 2026 at 2:49 PM Andrey Konovalov <andreyknvl@gmail.com> wrote:
>
> On Tue, Apr 14, 2026 at 5:58 PM Alexei Starovoitov
> <alexei.starovoitov@gmail.com> wrote:
> >
> > I think we're talking past each other.
> > We're not interested in KASAN_SW_TAGS or KASAN_HW_TAGS.
> > We're not going to modify arm64 JIT at all.
> >
> > This is purely KASAN_GENRIC and only on x86-64.
> > JIT will emit exactly what compilers emit for generic
> > which is __asan_load/store. This is as stable ABI as it can get
> > and we don't want to deviate from it.
>
> OK, I supposed that's fair. You did throw me off point with your
> performance comment. But if you decide to add SW_TAGS support at some
> point, I think this discussion needs to be revisited.
>
> But please add a comment saying that those functions are only exposed
> for BPF JIT and they are not supposed to be used by other parts of the
> kernel. And in case you do end up adding a new config option, guard
> the public declarations by a corresponding ifdef.
I feel concerns of misuse are overblown.
Being in include/linux/kasan.h doesn't make them free-for-all
all of a sudden, but if you prefer we can just copy paste:
+void __asan_load1(void *p);
+void __asan_store1(void *p);
into bpf_jit_comp.c
> > The goal here is to find bugs in the verifier.
> > If something got past it, that shouldn't have,
> > kasan generic on x86-64 is enough.
>
> FWIW, I suspect HW_TAGS KASAN already just works with JITed BPF code.
Ohh. Good point. Looks like modern arm64 cpus in public clouds
don't have that enabled, so one would need pixel phone to
catch verifier bugs via hw_tags.
So we still need this x86-specific jit kasan.
I guess eventually it can be removed when hw_tags support is widespread.
^ permalink raw reply
* Re: [PATCH net v2] ibmveth: Disable GSO for packets with small MSS
From: mingming cao @ 2026-04-20 0:12 UTC (permalink / raw)
To: Jakub Kicinski
Cc: netdev, davem, edumazet, pabeni, horms, bjking1, haren, ricklind,
maddy, mpe, linuxppc-dev, stable, shaik.abdulla1, naveedaus
In-Reply-To: <20260418175451.122193-1-kuba@kernel.org>
On 4/18/26 10:54 AM, Jakub Kicinski wrote:
> This is an AI-generated review of your patch. The human sending this
> email has considered the AI review valid, or at least plausible.
Thanks for the review and the questions!
> ---
> ibmveth: Disable GSO for packets with small MSS
>
> This commit adds an ndo_features_check callback to the ibmveth driver to
> disable segmentation offload when the MSS is less than 224 bytes. This
> prevents physical adapters in SEA configurations from freezing when given
> small MSS packets.
>
>> diff --git a/drivers/net/ethernet/ibm/ibmveth.c b/drivers/net/ethernet/ibm/ibmveth.c
>> --- a/drivers/net/ethernet/ibm/ibmveth.c
>> +++ b/drivers/net/ethernet/ibm/ibmveth.c
> [ ... ]
>
>> @@ -1756,6 +1756,25 @@ static int ibmveth_set_mac_addr(struct net_device *dev, void *p)
>> return 0;
>> }
>>
>> +static netdev_features_t ibmveth_features_check(struct sk_buff *skb,
>> + struct net_device *dev,
>> + netdev_features_t features)
>> +{
>> + /* Some physical adapters do not support segmentation offload with
>> + * MSS < 224. Disable GSO for such packets to avoid adapter freeze.
>> + */
>> + if (skb_is_gso(skb)) {
> The commit message mentions this matches the ibmvnic hardware errata from
> commit f10b09ef687f. That commit disabled GSO for both gso_size < 224 and
> gso_segs == 1.
>
> By omitting the check for skb_shinfo(skb)->gso_segs == 1, could a
> single-segment GSO packet still cause the adapter to freeze?
Good question. Unlike ibmvnic, ibmveth does not need to check for
single-segment GSO packets (gso_segs == 1).
In ibmvnic, the firmware processes all GSO packets, including
single-segment ones, through the same LSO code path. This means even
gso_segs == 1 packets can trigger the hardware errata.
In ibmveth, the PowerVM hypervisor intelligently bypasses the LSO path
for single-segment packets. When gso_segs == 1, the hypervisor treats
the packet as a regular (non-GSO) packet and transmits it directly
without invoking the problematic hardware segmentation logic. Therefore,
single-segment GSO packets never reach the code path that causes the freeze.
This architectural difference is why ibmvnic needs the gso_segs check
but ibmveth does not.
>
>> + if (skb_shinfo(skb)->gso_size < IBMVETH_MIN_LSO_MSS) {
>> + netdev_warn_once(dev,
>> + "MSS %u too small for LSO, disabling GSO\n",
>> + skb_shinfo(skb)->gso_size);
>> + features &= ~NETIF_F_GSO_MASK;
>> + }
>> + }
>> +
>> + return features;
> When implementing a custom ndo_features_check callback, netif_skb_features()
> will bypass the standard dflt_features_check() function. Does this mean
> vlan_features_check() is no longer called for this driver?
>
> If vlan_features_check() is skipped, multi-tagged (QinQ) VLAN packets
> might retain GSO and protocol-specific checksum offloads that the hardware
> parser cannot handle.
>
> Should this return vlan_features_check(skb, features) instead?
You’re correct about the interaction with the default feature filtering.
With a custom ndo_features_check(), the standard dflt_features_check()
path is bypassed, so vlan_features_check() must be called explicitly to
preserve existing VLAN/QinQ and checksum handling.
Thank you for catching this! I'll send v3 shortly with:
1. The vlan_features_check() call added
2. Updated commit message explaining why gso_segs check is not needed
for ibmveth
Best regards,
Mingming
>> +}
^ permalink raw reply
* Re: [PATCH net] sctp: fix sockets_allocated imbalance after sk_clone()
From: Kuniyuki Iwashima @ 2026-04-20 0:38 UTC (permalink / raw)
To: Xin Long
Cc: network dev, linux-sctp, davem, kuba, Eric Dumazet, Paolo Abeni,
Simon Horman, Marcelo Ricardo Leitner
In-Reply-To: <af8d66f928dec3e9fcbee8d4a85b7d5a6b86f515.1776460180.git.lucien.xin@gmail.com>
On Fri, Apr 17, 2026 at 2:09 PM Xin Long <lucien.xin@gmail.com> wrote:
>
> sk_clone() increments sockets_allocated and sets the socket refcount to 2.
> SCTP performs additional accounting in sctp_clone_sock(), so the clone-time
> increment must be undone to avoid double counting.
>
> Note we cannot simply remove the SCTP-side increment, because the SCTP
> destroy path in sctp_destroy_sock() only decrements sockets_allocated when
> sp->ep is set, which may not be true for all failure paths in
> sctp_clone_sock().
>
> Fixes: 16942cf4d3e3 ("sctp: Use sk_clone() in sctp_accept().")
> Signed-off-by: Xin Long <lucien.xin@gmail.com>
Thanks for the fix.
Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com>
I fixed a similar one in 622e8838a298. We may want to
perform inc/dec regardless of sp->ep and simplify the code
once net-next opens.
^ permalink raw reply
* Re: [PATCH net v5] openvswitch: cap upcall PID array size and pre-size vport replies
From: Ilya Maximets @ 2026-04-20 1:25 UTC (permalink / raw)
To: Weiming Shi, Aaron Conole, Eelco Chaudron, David S . Miller,
Eric Dumazet, Jakub Kicinski, Paolo Abeni
Cc: i.maximets, Simon Horman, netdev, dev, Xiang Mei
In-Reply-To: <20260416024653.153456-2-bestswngs@gmail.com>
On 4/16/26 4:46 AM, Weiming Shi wrote:
> The vport netlink reply helpers allocate a fixed-size skb with
> nlmsg_new(NLMSG_DEFAULT_SIZE, ...) but serialize the full upcall PID
> array via ovs_vport_get_upcall_portids(). Since
> ovs_vport_set_upcall_portids() accepts any non-zero multiple of
> sizeof(u32) with no upper bound, a CAP_NET_ADMIN user can install a PID
> array large enough to overflow the reply buffer, causing nla_put() to
> fail with -EMSGSIZE and hitting BUG_ON(err < 0). On systems with
> unprivileged user namespaces enabled (e.g., Ubuntu default), this is
> reachable via unshare -Urn since OVS vport mutation operations use
> GENL_UNS_ADMIN_PERM.
>
> kernel BUG at net/openvswitch/datapath.c:2414!
> Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
> CPU: 1 UID: 0 PID: 65 Comm: poc Not tainted 7.0.0-rc7-00195-geb216e422044 #1
> RIP: 0010:ovs_vport_cmd_set+0x34c/0x400
> Call Trace:
> <TASK>
> genl_family_rcv_msg_doit (net/netlink/genetlink.c:1116)
> genl_rcv_msg (net/netlink/genetlink.c:1194)
> netlink_rcv_skb (net/netlink/af_netlink.c:2550)
> genl_rcv (net/netlink/genetlink.c:1219)
> netlink_unicast (net/netlink/af_netlink.c:1344)
> netlink_sendmsg (net/netlink/af_netlink.c:1894)
> __sys_sendto (net/socket.c:2206)
> __x64_sys_sendto (net/socket.c:2209)
> do_syscall_64 (arch/x86/entry/syscall_64.c:63)
> entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
> </TASK>
> Kernel panic - not syncing: Fatal exception
>
> Reject attempts to set more PIDs than nr_cpu_ids in
> ovs_vport_set_upcall_portids(), and pre-compute the worst-case reply
> size in ovs_vport_cmd_msg_size() based on that bound, similar to the
> existing ovs_dp_cmd_msg_size(). nr_cpu_ids matches the cap already
> used by the per-CPU dispatch configuration on the datapath side
> (ovs_dp_cmd_fill_info() serialises at most nr_cpu_ids PIDs), so the
> two sides stay consistent.
>
> Fixes: 5cd667b0a456 ("openvswitch: Allow each vport to have an array of 'port_id's.")
> Reported-by: Xiang Mei <xmei5@asu.edu>
> Assisted-by: Claude:claude-opus-4-6
> Signed-off-by: Weiming Shi <bestswngs@gmail.com>
> ---
sashiko AI review is concerned about a few things:
1. Potentially higher memory usage for these messages on systems with
high core count. This is not really a problem as we have similarly
sized datapath info messages and even larger flow messages.
2. Technically a uAPI change since we're limiting the number of PIDs
that can be supplied. But, as I said before, this number should be
limited by some value regardless, it's not good to have it unbounded,
and also it is generally not a good idea to configure more handlers
than cores, as it will worsen the "thundering herd" issue the
per-vport dispatch method has. Existing userspace by default sizes
the number of threads to be lower than the number of cores.
In practice, per-vport dispatch is only used as a fallback in all modern
versions of Open vSwitch (since 2021). So, we should also, probably,
explore the ways to deprecate it and eventually remove, which would likely
require at least removing the warning for when the dp->upcall_portids
array is smaller than the cpu_id, so the users are not always required to
supply the full array, e.g. for tests, but that's a separate topic.
For this particular patch:
Reviewed-by: Ilya Maximets <i.maximets@ovn.org>
^ permalink raw reply
* Re: [net-next v2 1/5] dt-bindings: net: starfive,jh7110-dwmac: Remove JH8100
From: Minda Chen @ 2026-04-20 1:45 UTC (permalink / raw)
To: Andrew Lunn
Cc: Alexandre Torgue, Andrew Lunn, David S . Miller, Eric Dumazet,
Jakub Kicinski, Paolo Abeni, Maxime Coquelin,
Emil Renner Berthing, Rob Herring, Krzysztof Kozlowski,
Conor Dooley, netdev@vger.kernel.org,
linux-kernel@vger.kernel.org,
linux-stm32@st-md-mailman.stormreply.com,
devicetree@vger.kernel.org
In-Reply-To: <27151bd8-6a3b-411f-94fd-7b1b932b9aa9@lunn.ch>
>
> On Fri, Apr 17, 2026 at 10:45:19AM +0800, Minda Chen wrote:
> > Remove JH8100 dt-bindings because do not support it now.
>
> > StarFive have stopped JH8100 developing and will release it outside.
>
> Is there a missing "not" in that sentence?
>
> Andrew
>
> ---
> pw-bot: cr
I will change it next version
^ permalink raw reply
* Re: [PATCH] rhashtable: Restore insecure_elasticity toggle
From: kernel test robot @ 2026-04-20 1:46 UTC (permalink / raw)
To: Herbert Xu, Tejun Heo
Cc: llvm, oe-kbuild-all, Thomas Graf, David Vernet, Andrea Righi,
Changwoo Min, Emil Tsalapatis, linux-crypto, sched-ext,
linux-kernel, Florian Westphal, netdev, NeilBrown
In-Reply-To: <aeLgjAeJuidWNy3N@gondor.apana.org.au>
[-- Attachment #1: Type: text/plain, Size: 6029 bytes --]
Hi Herbert,
kernel test robot noticed the following build errors:
[auto build test ERROR on akpm-mm/mm-nonmm-unstable]
[also build test ERROR on net/main net-next/main linus/master horms-ipvs/master v7.0 next-20260417]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/Herbert-Xu/rhashtable-Restore-insecure_elasticity-toggle/20260418-233732
base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-nonmm-unstable
patch link: https://lore.kernel.org/r/aeLgjAeJuidWNy3N%40gondor.apana.org.au
patch subject: [PATCH] rhashtable: Restore insecure_elasticity toggle
config: arm-allnoconfig
compiler: clang version 23.0.0git (https://github.com/llvm/llvm-project 5bac06718f502014fade905512f1d26d578a18f3)
reproduce (this is a W=1 build):
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202604200130.mFcotUk0-lkp@intel.com/
All errors (new ones prefixed by >>):
In file included from lib/rhashtable.c:25:
>> include/linux/rhashtable.h:831:32: error: member reference type 'struct rhashtable_params' is not a pointer; did you mean to use '.'?
831 | if (elasticity <= 0 && !params->insecure_elasticity)
| ~~~~~~^~
| .
include/linux/rhashtable.h:839:13: error: member reference type 'struct rhashtable_params' is not a pointer; did you mean to use '.'?
839 | !params->insecure_elasticity)
| ~~~~~~^~
| .
>> lib/rhashtable.c:541:31: error: member reference type 'struct rhashtable_params' is not a pointer; did you mean to use '.'?
541 | if (elasticity <= 0 && !ht->p->insecure_elasticity)
| ~~~~~^~
| .
lib/rhashtable.c:572:12: error: member reference type 'struct rhashtable_params' is not a pointer; did you mean to use '.'?
572 | !ht->p->insecure_elasticity)
| ~~~~~^~
| .
4 errors generated.
vim +831 include/linux/rhashtable.h
756
757 /* Internal function, please use rhashtable_insert_fast() instead. This
758 * function returns the existing element already in hashes if there is a clash,
759 * otherwise it returns an error via ERR_PTR().
760 */
761 static __always_inline void *__rhashtable_insert_fast(
762 struct rhashtable *ht, const void *key, struct rhash_head *obj,
763 const struct rhashtable_params params, bool rhlist)
764 {
765 struct rhashtable_compare_arg arg = {
766 .ht = ht,
767 .key = key,
768 };
769 struct rhash_lock_head __rcu **bkt;
770 struct rhash_head __rcu **pprev;
771 struct bucket_table *tbl;
772 struct rhash_head *head;
773 unsigned long flags;
774 unsigned int hash;
775 int elasticity;
776 void *data;
777
778 rcu_read_lock();
779
780 tbl = rht_dereference_rcu(ht->tbl, ht);
781 hash = rht_head_hashfn(ht, tbl, obj, params);
782 elasticity = RHT_ELASTICITY;
783 bkt = rht_bucket_insert(ht, tbl, hash);
784 data = ERR_PTR(-ENOMEM);
785 if (!bkt)
786 goto out;
787 pprev = NULL;
788 flags = rht_lock(tbl, bkt);
789
790 if (unlikely(rcu_access_pointer(tbl->future_tbl))) {
791 slow_path:
792 rht_unlock(tbl, bkt, flags);
793 rcu_read_unlock();
794 return rhashtable_insert_slow(ht, key, obj);
795 }
796
797 rht_for_each_from(head, rht_ptr(bkt, tbl, hash), tbl, hash) {
798 struct rhlist_head *plist;
799 struct rhlist_head *list;
800
801 elasticity--;
802 if (!key ||
803 (params.obj_cmpfn ?
804 params.obj_cmpfn(&arg, rht_obj(ht, head)) :
805 rhashtable_compare(&arg, rht_obj(ht, head)))) {
806 pprev = &head->next;
807 continue;
808 }
809
810 data = rht_obj(ht, head);
811
812 if (!rhlist)
813 goto out_unlock;
814
815
816 list = container_of(obj, struct rhlist_head, rhead);
817 plist = container_of(head, struct rhlist_head, rhead);
818
819 RCU_INIT_POINTER(list->next, plist);
820 head = rht_dereference_bucket(head->next, tbl, hash);
821 RCU_INIT_POINTER(list->rhead.next, head);
822 if (pprev) {
823 rcu_assign_pointer(*pprev, obj);
824 rht_unlock(tbl, bkt, flags);
825 } else
826 rht_assign_unlock(tbl, bkt, obj, flags);
827 data = NULL;
828 goto out;
829 }
830
> 831 if (elasticity <= 0 && !params->insecure_elasticity)
832 goto slow_path;
833
834 data = ERR_PTR(-E2BIG);
835 if (unlikely(rht_grow_above_max(ht, tbl)))
836 goto out_unlock;
837
838 if (unlikely(rht_grow_above_100(ht, tbl)) &&
839 !params->insecure_elasticity)
840 goto slow_path;
841
842 /* Inserting at head of list makes unlocking free. */
843 head = rht_ptr(bkt, tbl, hash);
844
845 RCU_INIT_POINTER(obj->next, head);
846 if (rhlist) {
847 struct rhlist_head *list;
848
849 list = container_of(obj, struct rhlist_head, rhead);
850 RCU_INIT_POINTER(list->next, NULL);
851 }
852
853 atomic_inc(&ht->nelems);
854 rht_assign_unlock(tbl, bkt, obj, flags);
855
856 if (rht_grow_above_75(ht, tbl))
857 schedule_work(&ht->run_work);
858
859 data = NULL;
860 out:
861 rcu_read_unlock();
862
863 return data;
864
865 out_unlock:
866 rht_unlock(tbl, bkt, flags);
867 goto out;
868 }
869
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
[-- Attachment #2: reproduce --]
[-- Type: text/plain, Size: 924 bytes --]
reproduce (this is a W=1 build):
git remote add akpm-mm https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git
git fetch akpm-mm mm-nonmm-unstable
git checkout akpm-mm/mm-nonmm-unstable
b4 shazam https://lore.kernel.org/r/aeLgjAeJuidWNy3N@gondor.apana.org.au
# install arm cross compiling tool for clang build
# apt-get install binutils-arm-linux-gnueabi
# clang-23 might not be officially released. Try a lower version if installation fails.
git clone https://github.com/intel/lkp-tests.git ~/lkp-tests
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang-23 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=arm olddefconfig
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang-23 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=arm SHELL=/bin/bash lib/
[-- Attachment #3: config --]
[-- Type: text/plain, Size: 28234 bytes --]
#
# Automatically generated file; DO NOT EDIT.
# Linux/arm 7.0.0-rc5 Kernel Configuration
#
CONFIG_CC_VERSION_TEXT="clang version 23.0.0git (git://gitmirror/llvm_project 5bac06718f502014fade905512f1d26d578a18f3)"
CONFIG_GCC_VERSION=0
CONFIG_CC_IS_CLANG=y
CONFIG_CLANG_VERSION=230000
CONFIG_AS_IS_LLVM=y
CONFIG_AS_VERSION=230000
CONFIG_LD_VERSION=0
CONFIG_LD_IS_LLD=y
CONFIG_LLD_VERSION=230000
CONFIG_RUSTC_VERSION=108800
CONFIG_RUST_IS_AVAILABLE=y
CONFIG_RUSTC_LLVM_VERSION=200105
CONFIG_ARCH_HAS_CC_CAN_LINK=y
CONFIG_CC_CAN_LINK=y
CONFIG_CC_HAS_ASM_GOTO_OUTPUT=y
CONFIG_CC_HAS_ASM_GOTO_TIED_OUTPUT=y
CONFIG_TOOLS_SUPPORT_RELR=y
CONFIG_CC_HAS_ASM_INLINE=y
CONFIG_CC_HAS_ASSUME=y
CONFIG_CC_HAS_NO_PROFILE_FN_ATTR=y
CONFIG_CC_HAS_COUNTED_BY=y
CONFIG_CC_HAS_COUNTED_BY_PTR=y
CONFIG_CC_HAS_MULTIDIMENSIONAL_NONSTRING=y
CONFIG_LD_CAN_USE_KEEP_IN_OVERLAY=y
CONFIG_RUSTC_HAS_SLICE_AS_FLATTENED=y
CONFIG_RUSTC_HAS_COERCE_POINTEE=y
CONFIG_RUSTC_HAS_SPAN_FILE=y
CONFIG_RUSTC_HAS_UNNECESSARY_TRANSMUTES=y
CONFIG_PAHOLE_VERSION=131
CONFIG_IRQ_WORK=y
CONFIG_THREAD_INFO_IN_TASK=y
#
# General setup
#
CONFIG_BROKEN_ON_SMP=y
CONFIG_INIT_ENV_ARG_LIMIT=32
# CONFIG_COMPILE_TEST is not set
# CONFIG_WERROR is not set
CONFIG_LOCALVERSION=""
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_BUILD_SALT=""
CONFIG_HAVE_KERNEL_GZIP=y
CONFIG_HAVE_KERNEL_LZMA=y
CONFIG_HAVE_KERNEL_XZ=y
CONFIG_HAVE_KERNEL_LZO=y
CONFIG_HAVE_KERNEL_LZ4=y
CONFIG_KERNEL_GZIP=y
# CONFIG_KERNEL_LZMA is not set
# CONFIG_KERNEL_XZ is not set
# CONFIG_KERNEL_LZO is not set
# CONFIG_KERNEL_LZ4 is not set
CONFIG_DEFAULT_INIT=""
CONFIG_DEFAULT_HOSTNAME="(none)"
# CONFIG_SYSVIPC is not set
# CONFIG_WATCH_QUEUE is not set
CONFIG_HAVE_ARCH_AUDITSYSCALL=y
#
# IRQ subsystem
#
CONFIG_GENERIC_IRQ_PROBE=y
CONFIG_GENERIC_IRQ_SHOW=y
CONFIG_GENERIC_IRQ_SHOW_LEVEL=y
CONFIG_HARDIRQS_SW_RESEND=y
CONFIG_GENERIC_IRQ_CHIP=y
CONFIG_IRQ_DOMAIN=y
CONFIG_IRQ_DOMAIN_HIERARCHY=y
CONFIG_IRQ_FORCED_THREADING=y
CONFIG_SPARSE_IRQ=y
# end of IRQ subsystem
CONFIG_GENERIC_IRQ_MULTI_HANDLER=y
CONFIG_GENERIC_CLOCKEVENTS=y
#
# Timers subsystem
#
CONFIG_HZ_PERIODIC=y
# CONFIG_NO_HZ_IDLE is not set
# CONFIG_NO_HZ is not set
# CONFIG_HIGH_RES_TIMERS is not set
# CONFIG_POSIX_AUX_CLOCKS is not set
# end of Timers subsystem
CONFIG_HAVE_EBPF_JIT=y
#
# BPF subsystem
#
# CONFIG_BPF_SYSCALL is not set
# end of BPF subsystem
CONFIG_PREEMPT_VOLUNTARY_BUILD=y
CONFIG_PREEMPT_VOLUNTARY=y
# CONFIG_PREEMPT is not set
#
# CPU/Task time and stats accounting
#
CONFIG_TICK_CPU_ACCOUNTING=y
# CONFIG_VIRT_CPU_ACCOUNTING_GEN is not set
# CONFIG_IRQ_TIME_ACCOUNTING is not set
# CONFIG_BSD_PROCESS_ACCT is not set
# CONFIG_PSI is not set
# end of CPU/Task time and stats accounting
#
# RCU Subsystem
#
CONFIG_TINY_RCU=y
# CONFIG_RCU_EXPERT is not set
CONFIG_TINY_SRCU=y
# end of RCU Subsystem
# CONFIG_IKCONFIG is not set
# CONFIG_IKHEADERS is not set
CONFIG_LOG_BUF_SHIFT=17
CONFIG_GENERIC_SCHED_CLOCK=y
#
# Scheduler features
#
# end of Scheduler features
CONFIG_CC_IMPLICIT_FALLTHROUGH="-Wimplicit-fallthrough"
CONFIG_GCC10_NO_ARRAY_BOUNDS=y
CONFIG_GCC_NO_STRINGOP_OVERFLOW=y
# CONFIG_CGROUPS is not set
CONFIG_NAMESPACES=y
# CONFIG_UTS_NS is not set
# CONFIG_USER_NS is not set
# CONFIG_PID_NS is not set
# CONFIG_CHECKPOINT_RESTORE is not set
# CONFIG_SCHED_AUTOGROUP is not set
# CONFIG_RELAY is not set
# CONFIG_BLK_DEV_INITRD is not set
# CONFIG_BOOT_CONFIG is not set
CONFIG_CMDLINE_LOG_WRAP_IDEAL_LEN=1021
CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE=y
# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
CONFIG_HAVE_LD_DEAD_CODE_DATA_ELIMINATION=y
CONFIG_LD_ORPHAN_WARN=y
CONFIG_LD_ORPHAN_WARN_LEVEL="warn"
CONFIG_SYSCTL=y
CONFIG_HAVE_UID16=y
# CONFIG_SYSFS_SYSCALL is not set
# CONFIG_EXPERT is not set
CONFIG_UID16=y
CONFIG_MULTIUSER=y
CONFIG_FHANDLE=y
CONFIG_POSIX_TIMERS=y
CONFIG_PRINTK=y
CONFIG_BUG=y
CONFIG_ELF_CORE=y
CONFIG_FUTEX=y
CONFIG_FUTEX_PI=y
CONFIG_EPOLL=y
CONFIG_SIGNALFD=y
CONFIG_TIMERFD=y
CONFIG_EVENTFD=y
CONFIG_AIO=y
CONFIG_IO_URING=y
CONFIG_ADVISE_SYSCALLS=y
CONFIG_MEMBARRIER=y
CONFIG_RSEQ=y
CONFIG_CACHESTAT_SYSCALL=y
CONFIG_KALLSYMS=y
# CONFIG_KALLSYMS_SELFTEST is not set
CONFIG_ARCH_HAS_MEMBARRIER_SYNC_CORE=y
CONFIG_HAVE_PERF_EVENTS=y
CONFIG_PERF_USE_VMALLOC=y
#
# Kernel Performance Events And Counters
#
# CONFIG_PERF_EVENTS is not set
# end of Kernel Performance Events And Counters
# CONFIG_PROFILING is not set
#
# Kexec and crash features
#
# end of Kexec and crash features
#
# Live Update and Kexec HandOver
#
# end of Live Update and Kexec HandOver
# end of General setup
CONFIG_ARM=y
CONFIG_ARM_HAS_GROUP_RELOCS=y
CONFIG_SYS_SUPPORTS_APM_EMULATION=y
CONFIG_NO_IOPORT_MAP=y
CONFIG_STACKTRACE_SUPPORT=y
CONFIG_LOCKDEP_SUPPORT=y
CONFIG_GENERIC_HWEIGHT=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_ARCH_SUPPORTS_UPROBES=y
CONFIG_PHYS_OFFSET=0x00800000
CONFIG_GENERIC_BUG=y
CONFIG_PGTABLE_LEVELS=2
#
# System Type
#
# CONFIG_MMU is not set
CONFIG_ARM_SINGLE_ARMV7M=y
CONFIG_ARCH_MMAP_RND_BITS_MIN=8
CONFIG_ARCH_MMAP_RND_BITS_MAX=16
# CONFIG_ARCH_AT91 is not set
# CONFIG_ARCH_MXC is not set
# CONFIG_ARCH_STM32 is not set
# CONFIG_ARCH_LPC18XX is not set
# CONFIG_ARCH_MPS2 is not set
#
# Processor Type
#
CONFIG_CPU_V7M=y
CONFIG_CPU_THUMBONLY=y
CONFIG_CPU_THUMB_CAPABLE=y
CONFIG_CPU_32v7M=y
CONFIG_CPU_ABRT_NOMMU=y
CONFIG_CPU_PABRT_LEGACY=y
CONFIG_CPU_CACHE_NOP=y
CONFIG_CPU_CACHE_V7M=y
CONFIG_CPU_V7M_NUM_IRQ=240
#
# Processor Features
#
CONFIG_ARM_THUMB=y
CONFIG_CPU_LITTLE_ENDIAN=y
# CONFIG_CPU_ICACHE_DISABLE is not set
# CONFIG_CPU_DCACHE_DISABLE is not set
# CONFIG_CPU_BPREDICT_DISABLE is not set
CONFIG_ARM_L1_CACHE_SHIFT=5
# CONFIG_ARM_DMA_MEM_BUFFERABLE is not set
# CONFIG_SET_MEM_PARAM is not set
CONFIG_DRAM_BASE=0x00800000
CONFIG_DRAM_SIZE=0x00800000
# CONFIG_REMAP_VECTORS_TO_RAM is not set
# CONFIG_ARM_MPU is not set
# end of System Type
#
# Bus support
#
# end of Bus support
#
# Kernel Features
#
CONFIG_IRQSTACKS=y
CONFIG_PAGE_OFFSET=0x00800000
CONFIG_HZ_FIXED=0
CONFIG_HZ_100=y
# CONFIG_HZ_200 is not set
# CONFIG_HZ_250 is not set
# CONFIG_HZ_300 is not set
# CONFIG_HZ_500 is not set
# CONFIG_HZ_1000 is not set
CONFIG_HZ=100
CONFIG_THUMB2_KERNEL=y
CONFIG_AEABI=y
CONFIG_ARCH_SELECT_MEMORY_MODEL=y
CONFIG_ARCH_FLATMEM_ENABLE=y
CONFIG_ARCH_SPARSEMEM_ENABLE=y
CONFIG_ARCH_FORCE_MAX_ORDER=10
# CONFIG_PARAVIRT is not set
# CONFIG_PARAVIRT_TIME_ACCOUNTING is not set
# end of Kernel Features
#
# Boot options
#
CONFIG_USE_OF=y
CONFIG_ARCH_WANT_FLAT_DTB_INSTALL=y
# CONFIG_ATAGS is not set
CONFIG_ZBOOT_ROM_TEXT=0x0
CONFIG_ZBOOT_ROM_BSS=0x0
# CONFIG_ARM_APPENDED_DTB is not set
CONFIG_CMDLINE=""
# CONFIG_XIP_KERNEL is not set
CONFIG_ARCH_SUPPORTS_CRASH_DUMP=y
CONFIG_ARCH_DEFAULT_CRASH_DUMP=y
# CONFIG_AUTO_ZRELADDR is not set
# end of Boot options
#
# CPU Power Management
#
#
# CPU Frequency scaling
#
# CONFIG_CPU_FREQ is not set
# end of CPU Frequency scaling
#
# CPU Idle
#
# CONFIG_CPU_IDLE is not set
# end of CPU Idle
# end of CPU Power Management
#
# Floating point emulation
#
#
# At least one emulation must be selected
#
# end of Floating point emulation
CONFIG_ARCH_CC_CAN_LINK=y
CONFIG_ARCH_USERFLAGS="-mlittle-endian"
#
# Power management options
#
# CONFIG_SUSPEND is not set
# CONFIG_PM is not set
# CONFIG_APM_EMULATION is not set
CONFIG_ARCH_SUSPEND_POSSIBLE=y
# end of Power management options
CONFIG_CPU_MITIGATIONS=y
CONFIG_ARCH_HAS_DMA_OPS=y
#
# General architecture-dependent options
#
CONFIG_ARCH_USE_BUILTIN_BSWAP=y
CONFIG_HAVE_FUNCTION_ERROR_INJECTION=y
CONFIG_HAVE_NMI=y
CONFIG_HAVE_ARCH_TRACEHOOK=y
CONFIG_GENERIC_SMP_IDLE_THREAD=y
CONFIG_GENERIC_IDLE_POLL_SETUP=y
CONFIG_ARCH_HAS_FORTIFY_SOURCE=y
CONFIG_ARCH_HAS_KEEPINITRD=y
CONFIG_ARCH_HAS_SET_MEMORY=y
CONFIG_HAVE_ARCH_THREAD_STRUCT_WHITELIST=y
CONFIG_ARCH_32BIT_OFF_T=y
CONFIG_HAVE_REGS_AND_STACK_ACCESS_API=y
CONFIG_HAVE_RSEQ=y
CONFIG_HAVE_PERF_REGS=y
CONFIG_HAVE_PERF_USER_STACK_DUMP=y
CONFIG_MMU_LAZY_TLB_REFCOUNT=y
CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG=y
CONFIG_ARCH_WANT_IPC_PARSE_VERSION=y
CONFIG_HAVE_ARCH_SECCOMP=y
CONFIG_HAVE_ARCH_SECCOMP_FILTER=y
# CONFIG_SECCOMP is not set
CONFIG_HAVE_ARCH_KSTACK_ERASE=y
CONFIG_HAVE_STACKPROTECTOR=y
# CONFIG_STACKPROTECTOR is not set
CONFIG_LTO_NONE=y
CONFIG_ARCH_SUPPORTS_CFI=y
# CONFIG_CFI is not set
CONFIG_HAVE_CFI_ICALL_NORMALIZE_INTEGERS=y
CONFIG_HAVE_CONTEXT_TRACKING_USER=y
CONFIG_HAVE_VIRT_CPU_ACCOUNTING_GEN=y
CONFIG_HAVE_IRQ_TIME_ACCOUNTING=y
CONFIG_HAVE_MOD_ARCH_SPECIFIC=y
CONFIG_MODULES_USE_ELF_REL=y
CONFIG_HAVE_IRQ_EXIT_ON_IRQ_STACK=y
CONFIG_HAVE_SOFTIRQ_ON_OWN_STACK=y
CONFIG_SOFTIRQ_ON_OWN_STACK=y
CONFIG_ARCH_HAS_ELF_RANDOMIZE=y
CONFIG_HAVE_EXIT_THREAD=y
CONFIG_HAVE_PAGE_SIZE_4KB=y
CONFIG_PAGE_SIZE_4KB=y
CONFIG_PAGE_SIZE_LESS_THAN_64KB=y
CONFIG_PAGE_SIZE_LESS_THAN_256KB=y
CONFIG_PAGE_SHIFT=12
CONFIG_CLONE_BACKWARDS=y
CONFIG_OLD_SIGSUSPEND3=y
CONFIG_OLD_SIGACTION=y
# CONFIG_COMPAT_32BIT_TIME is not set
CONFIG_ARCH_WANT_LD_ORPHAN_WARN=y
CONFIG_HAVE_ARCH_PFN_VALID=y
#
# GCOV-based kernel profiling
#
CONFIG_ARCH_HAS_GCOV_PROFILE_ALL=y
# end of GCOV-based kernel profiling
CONFIG_HAVE_GCC_PLUGINS=y
CONFIG_FUNCTION_ALIGNMENT=0
CONFIG_CC_HAS_SANE_FUNCTION_ALIGNMENT=y
# end of General architecture-dependent options
CONFIG_RT_MUTEXES=y
# CONFIG_MODULES is not set
CONFIG_BLOCK=y
# CONFIG_BLOCK_LEGACY_AUTOLOAD is not set
# CONFIG_BLK_DEV_BSGLIB is not set
# CONFIG_BLK_DEV_INTEGRITY is not set
# CONFIG_BLK_DEV_WRITE_MOUNTED is not set
# CONFIG_BLK_DEV_ZONED is not set
# CONFIG_BLK_WBT is not set
# CONFIG_BLK_INLINE_ENCRYPTION is not set
#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_MSDOS_PARTITION=y
CONFIG_EFI_PARTITION=y
# end of Partition Types
#
# IO Schedulers
#
# CONFIG_MQ_IOSCHED_DEADLINE is not set
# CONFIG_MQ_IOSCHED_KYBER is not set
# CONFIG_IOSCHED_BFQ is not set
# end of IO Schedulers
CONFIG_INLINE_SPIN_UNLOCK_IRQ=y
CONFIG_INLINE_READ_UNLOCK=y
CONFIG_INLINE_READ_UNLOCK_IRQ=y
CONFIG_INLINE_WRITE_UNLOCK=y
CONFIG_INLINE_WRITE_UNLOCK_IRQ=y
CONFIG_ARCH_SUPPORTS_ATOMIC_RMW=y
CONFIG_ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE=y
#
# Executable file formats
#
# CONFIG_BINFMT_ELF_FDPIC is not set
# CONFIG_BINFMT_SCRIPT is not set
CONFIG_ARCH_HAS_BINFMT_FLAT=y
# CONFIG_BINFMT_FLAT is not set
CONFIG_BINFMT_FLAT_ARGVP_ENVP_ON_STACK=y
# CONFIG_BINFMT_MISC is not set
CONFIG_COREDUMP=y
# end of Executable file formats
#
# Memory Management options
#
#
# Slab allocator options
#
CONFIG_SLUB=y
# CONFIG_SLAB_MERGE_DEFAULT is not set
# CONFIG_SLAB_FREELIST_RANDOM is not set
# CONFIG_SLAB_FREELIST_HARDENED is not set
# CONFIG_SLAB_BUCKETS is not set
# CONFIG_SLUB_STATS is not set
# CONFIG_RANDOM_KMALLOC_CACHES is not set
# end of Slab allocator options
# CONFIG_SHUFFLE_PAGE_ALLOCATOR is not set
# CONFIG_COMPAT_BRK is not set
CONFIG_SELECT_MEMORY_MODEL=y
CONFIG_FLATMEM_MANUAL=y
# CONFIG_SPARSEMEM_MANUAL is not set
CONFIG_FLATMEM=y
CONFIG_ARCH_KEEP_MEMBLOCK=y
CONFIG_EXCLUSIVE_SYSTEM_RAM=y
# CONFIG_PAGE_REPORTING is not set
CONFIG_PCP_BATCH_SCALE_MAX=5
CONFIG_NOMMU_INITIAL_TRIM_EXCESS=1
CONFIG_ARCH_WANT_GENERAL_HUGETLB=y
CONFIG_PAGE_MAPCOUNT=y
CONFIG_NEED_PER_CPU_KM=y
CONFIG_PAGE_BLOCK_MAX_ORDER=10
CONFIG_GENERIC_EARLY_IOREMAP=y
CONFIG_ARCH_HAS_CPU_CACHE_ALIASING=y
CONFIG_ARCH_HAS_CACHE_LINE_SIZE=y
CONFIG_ARCH_HAS_CURRENT_STACK_POINTER=y
CONFIG_VM_EVENT_COUNTERS=y
# CONFIG_PERCPU_STATS is not set
#
# GUP_TEST needs to have DEBUG_FS enabled
#
# CONFIG_DMAPOOL_TEST is not set
CONFIG_ARCH_SUPPORTS_PER_VMA_LOCK=y
CONFIG_LOCK_MM_AND_FIND_VMA=y
#
# Data Access Monitoring
#
# CONFIG_DAMON is not set
# end of Data Access Monitoring
# end of Memory Management options
# CONFIG_NET is not set
#
# Device Drivers
#
CONFIG_GENERIC_PCI_IOMAP=y
# CONFIG_PCCARD is not set
#
# Generic Driver Options
#
# CONFIG_UEVENT_HELPER is not set
# CONFIG_DEVTMPFS is not set
# CONFIG_STANDALONE is not set
# CONFIG_PREVENT_FIRMWARE_BUILD is not set
#
# Firmware loader
#
CONFIG_FW_LOADER=y
CONFIG_EXTRA_FIRMWARE=""
# CONFIG_FW_LOADER_USER_HELPER is not set
# CONFIG_FW_LOADER_COMPRESS is not set
# CONFIG_FW_UPLOAD is not set
# end of Firmware loader
CONFIG_ALLOW_DEV_COREDUMP=y
CONFIG_GENERIC_CPU_DEVICES=y
CONFIG_GENERIC_CPU_AUTOPROBE=y
# CONFIG_FW_DEVLINK_SYNC_STATE_TIMEOUT is not set
# end of Generic Driver Options
#
# Bus devices
#
# CONFIG_VEXPRESS_CONFIG is not set
# CONFIG_MHI_BUS is not set
# CONFIG_MHI_BUS_EP is not set
# end of Bus devices
#
# Firmware Drivers
#
#
# ARM System Control and Management Interface Protocol
#
# CONFIG_ARM_SCMI_PROTOCOL is not set
# end of ARM System Control and Management Interface Protocol
# CONFIG_GOOGLE_FIRMWARE is not set
#
# Qualcomm firmware drivers
#
# end of Qualcomm firmware drivers
#
# Tegra firmware driver
#
# end of Tegra firmware driver
# end of Firmware Drivers
# CONFIG_FWCTL is not set
# CONFIG_GNSS is not set
# CONFIG_MTD is not set
CONFIG_DTC=y
CONFIG_OF=y
# CONFIG_OF_UNITTEST is not set
CONFIG_OF_FLATTREE=y
CONFIG_OF_EARLY_FLATTREE=y
CONFIG_OF_KOBJ=y
CONFIG_OF_ADDRESS=y
CONFIG_OF_IRQ=y
CONFIG_OF_RESERVED_MEM=y
# CONFIG_OF_OVERLAY is not set
CONFIG_ARCH_MIGHT_HAVE_PC_PARPORT=y
# CONFIG_PARPORT is not set
# CONFIG_BLK_DEV is not set
#
# NVME Support
#
# CONFIG_NVME_FC is not set
# CONFIG_NVME_TARGET is not set
# end of NVME Support
#
# Misc devices
#
# CONFIG_DUMMY_IRQ is not set
# CONFIG_RPMB is not set
# CONFIG_ENCLOSURE_SERVICES is not set
# CONFIG_SRAM is not set
# CONFIG_XILINX_SDFEC is not set
# CONFIG_OPEN_DICE is not set
# CONFIG_NTSYNC is not set
# CONFIG_VCPU_STALL_DETECTOR is not set
# CONFIG_C2PORT is not set
#
# EEPROM support
#
# CONFIG_EEPROM_93CX6 is not set
# end of EEPROM support
#
# Altera FPGA firmware download module (requires I2C)
#
# CONFIG_PVPANIC is not set
# end of Misc devices
#
# SCSI device support
#
CONFIG_SCSI_MOD=y
# CONFIG_RAID_ATTRS is not set
# CONFIG_SCSI is not set
# end of SCSI device support
# CONFIG_ATA is not set
# CONFIG_MD is not set
# CONFIG_TARGET_CORE is not set
#
# Input device support
#
CONFIG_INPUT=y
# CONFIG_INPUT_FF_MEMLESS is not set
# CONFIG_INPUT_SPARSEKMAP is not set
# CONFIG_INPUT_MATRIXKMAP is not set
#
# Userland interfaces
#
# CONFIG_INPUT_MOUSEDEV is not set
# CONFIG_INPUT_JOYDEV is not set
# CONFIG_INPUT_EVDEV is not set
#
# Input Device Drivers
#
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
# CONFIG_INPUT_JOYSTICK is not set
# CONFIG_INPUT_TABLET is not set
# CONFIG_INPUT_TOUCHSCREEN is not set
# CONFIG_INPUT_MISC is not set
# CONFIG_RMI4_CORE is not set
#
# Hardware I/O ports
#
# CONFIG_SERIO is not set
# CONFIG_GAMEPORT is not set
# end of Hardware I/O ports
# end of Input device support
#
# Character devices
#
CONFIG_TTY=y
CONFIG_VT=y
CONFIG_CONSOLE_TRANSLATIONS=y
CONFIG_VT_CONSOLE=y
# CONFIG_VT_HW_CONSOLE_BINDING is not set
CONFIG_UNIX98_PTYS=y
# CONFIG_LEGACY_PTYS is not set
# CONFIG_LEGACY_TIOCSTI is not set
# CONFIG_LDISC_AUTOLOAD is not set
#
# Serial drivers
#
# CONFIG_SERIAL_8250 is not set
#
# Non-8250 serial port support
#
# CONFIG_SERIAL_EARLYCON_SEMIHOST is not set
# CONFIG_SERIAL_UARTLITE is not set
# CONFIG_SERIAL_SIFIVE is not set
# CONFIG_SERIAL_SCCNXP is not set
# CONFIG_SERIAL_ALTERA_JTAGUART is not set
# CONFIG_SERIAL_ALTERA_UART is not set
# CONFIG_SERIAL_XILINX_PS_UART is not set
# CONFIG_SERIAL_ARC is not set
# CONFIG_SERIAL_FSL_LPUART is not set
# CONFIG_SERIAL_FSL_LINFLEXUART is not set
# CONFIG_SERIAL_CONEXANT_DIGICOLOR is not set
# CONFIG_SERIAL_ST_ASC is not set
# CONFIG_SERIAL_SPRD is not set
# end of Serial drivers
# CONFIG_SERIAL_NONSTANDARD is not set
# CONFIG_NULL_TTY is not set
# CONFIG_HVC_DCC is not set
# CONFIG_SERIAL_DEV_BUS is not set
# CONFIG_VIRTIO_CONSOLE is not set
# CONFIG_IPMI_HANDLER is not set
# CONFIG_HW_RANDOM is not set
# CONFIG_DEVMEM is not set
# CONFIG_DEVPORT is not set
# CONFIG_TCG_TPM is not set
# CONFIG_XILLYBUS is not set
# end of Character devices
#
# I2C support
#
# CONFIG_I2C is not set
# end of I2C support
# CONFIG_I3C is not set
# CONFIG_SPI is not set
# CONFIG_SPMI is not set
# CONFIG_HSI is not set
# CONFIG_PPS is not set
#
# PTP clock support
#
CONFIG_PTP_1588_CLOCK_OPTIONAL=y
#
# Enable PHYLIB and NETWORK_PHY_TIMESTAMPING to see the additional clocks.
#
# end of PTP clock support
#
# DPLL device support
#
# end of DPLL device support
# CONFIG_PINCTRL is not set
CONFIG_GPIOLIB_LEGACY=y
# CONFIG_GPIOLIB is not set
# CONFIG_W1 is not set
# CONFIG_POWER_RESET is not set
# CONFIG_POWER_SEQUENCING is not set
# CONFIG_POWER_SUPPLY is not set
# CONFIG_HWMON is not set
# CONFIG_THERMAL is not set
# CONFIG_WATCHDOG is not set
CONFIG_SSB_POSSIBLE=y
# CONFIG_SSB is not set
CONFIG_BCMA_POSSIBLE=y
# CONFIG_BCMA is not set
#
# Multifunction device drivers
#
# CONFIG_MFD_ATMEL_FLEXCOM is not set
# CONFIG_MFD_ATMEL_HLCDC is not set
# CONFIG_MFD_MADERA is not set
# CONFIG_MFD_HI6421_PMIC is not set
# CONFIG_MFD_KEMPLD is not set
# CONFIG_MFD_MT6397 is not set
# CONFIG_MFD_PM8XXX is not set
# CONFIG_MFD_SM501 is not set
# CONFIG_MFD_SYSCON is not set
# CONFIG_MFD_TQMX86 is not set
# end of Multifunction device drivers
# CONFIG_REGULATOR is not set
# CONFIG_RC_CORE is not set
#
# CEC support
#
# CONFIG_MEDIA_CEC_SUPPORT is not set
# end of CEC support
# CONFIG_MEDIA_SUPPORT is not set
#
# Graphics support
#
# CONFIG_AUXDISPLAY is not set
# CONFIG_DRM is not set
#
# Frame buffer Devices
#
# CONFIG_FB is not set
# end of Frame buffer Devices
#
# Backlight & LCD device support
#
# CONFIG_LCD_CLASS_DEVICE is not set
# CONFIG_BACKLIGHT_CLASS_DEVICE is not set
# end of Backlight & LCD device support
#
# Console display driver support
#
CONFIG_DUMMY_CONSOLE=y
CONFIG_DUMMY_CONSOLE_COLUMNS=80
CONFIG_DUMMY_CONSOLE_ROWS=30
# end of Console display driver support
# CONFIG_TRACE_GPU_MEM is not set
# end of Graphics support
# CONFIG_SOUND is not set
# CONFIG_HID_SUPPORT is not set
CONFIG_USB_OHCI_LITTLE_ENDIAN=y
# CONFIG_USB_SUPPORT is not set
# CONFIG_MMC is not set
# CONFIG_MEMSTICK is not set
# CONFIG_NEW_LEDS is not set
# CONFIG_ACCESSIBILITY is not set
CONFIG_EDAC_ATOMIC_SCRUB=y
CONFIG_EDAC_SUPPORT=y
CONFIG_RTC_LIB=y
# CONFIG_RTC_CLASS is not set
# CONFIG_DMADEVICES is not set
#
# DMABUF options
#
# CONFIG_SYNC_FILE is not set
# CONFIG_DMABUF_HEAPS is not set
# end of DMABUF options
# CONFIG_VFIO is not set
# CONFIG_VIRT_DRIVERS is not set
# CONFIG_VIRTIO_MENU is not set
# CONFIG_VHOST_MENU is not set
#
# Microsoft Hyper-V guest support
#
# end of Microsoft Hyper-V guest support
# CONFIG_GREYBUS is not set
# CONFIG_COMEDI is not set
# CONFIG_GPIB is not set
# CONFIG_STAGING is not set
# CONFIG_GOLDFISH is not set
# CONFIG_CHROME_PLATFORMS is not set
# CONFIG_MELLANOX_PLATFORM is not set
CONFIG_HAVE_CLK=y
CONFIG_HAVE_CLK_PREPARE=y
CONFIG_COMMON_CLK=y
#
# Clock driver for ARM Reference designs
#
# CONFIG_CLK_ICST is not set
# CONFIG_CLK_SP810 is not set
# end of Clock driver for ARM Reference designs
# CONFIG_COMMON_CLK_AXI_CLKGEN is not set
# CONFIG_COMMON_CLK_FIXED_MMIO is not set
# CONFIG_XILINX_VCU is not set
# CONFIG_COMMON_CLK_XLNX_CLKWZRD is not set
# CONFIG_HWSPINLOCK is not set
#
# Clock Source drivers
#
CONFIG_TIMER_OF=y
CONFIG_TIMER_PROBE=y
# CONFIG_ARM_TIMER_SP804 is not set
# CONFIG_MICROCHIP_PIT64B is not set
# end of Clock Source drivers
# CONFIG_MAILBOX is not set
#
# Remoteproc drivers
#
# CONFIG_REMOTEPROC is not set
# end of Remoteproc drivers
#
# Rpmsg drivers
#
# CONFIG_RPMSG_VIRTIO is not set
# end of Rpmsg drivers
#
# SOC (System On Chip) specific Drivers
#
#
# Amlogic SoC drivers
#
# end of Amlogic SoC drivers
#
# Broadcom SoC drivers
#
# end of Broadcom SoC drivers
#
# NXP/Freescale QorIQ SoC drivers
#
# CONFIG_QUICC_ENGINE is not set
# end of NXP/Freescale QorIQ SoC drivers
#
# fujitsu SoC drivers
#
# end of fujitsu SoC drivers
#
# i.MX SoC drivers
#
# end of i.MX SoC drivers
#
# Enable LiteX SoC Builder specific drivers
#
# CONFIG_LITEX_SOC_CONTROLLER is not set
# end of Enable LiteX SoC Builder specific drivers
# CONFIG_WPCM450_SOC is not set
#
# Qualcomm SoC drivers
#
# end of Qualcomm SoC drivers
# CONFIG_SOC_TI is not set
#
# Xilinx SoC drivers
#
# end of Xilinx SoC drivers
# end of SOC (System On Chip) specific Drivers
#
# PM Domains
#
#
# Amlogic PM Domains
#
# end of Amlogic PM Domains
#
# Broadcom PM Domains
#
# end of Broadcom PM Domains
#
# i.MX PM Domains
#
# end of i.MX PM Domains
#
# Qualcomm PM Domains
#
# end of Qualcomm PM Domains
# end of PM Domains
# CONFIG_PM_DEVFREQ is not set
# CONFIG_EXTCON is not set
# CONFIG_MEMORY is not set
# CONFIG_IIO is not set
# CONFIG_PWM is not set
#
# IRQ chip support
#
CONFIG_IRQCHIP=y
CONFIG_ARM_NVIC=y
# CONFIG_AL_FIC is not set
# CONFIG_XILINX_INTC is not set
# end of IRQ chip support
# CONFIG_IPACK_BUS is not set
# CONFIG_RESET_CONTROLLER is not set
#
# PHY Subsystem
#
# CONFIG_GENERIC_PHY is not set
# CONFIG_PHY_CAN_TRANSCEIVER is not set
#
# PHY drivers for Broadcom platforms
#
# CONFIG_BCM_KONA_USB2_PHY is not set
# end of PHY drivers for Broadcom platforms
# CONFIG_PHY_CADENCE_TORRENT is not set
# CONFIG_PHY_CADENCE_DPHY is not set
# CONFIG_PHY_CADENCE_DPHY_RX is not set
# CONFIG_PHY_CADENCE_SALVO is not set
# CONFIG_PHY_PXA_28NM_HSIC is not set
# CONFIG_PHY_PXA_28NM_USB2 is not set
# end of PHY Subsystem
# CONFIG_POWERCAP is not set
# CONFIG_MCB is not set
# CONFIG_RAS is not set
#
# Android
#
# end of Android
# CONFIG_DAX is not set
# CONFIG_NVMEM is not set
#
# HW tracing support
#
# CONFIG_STM is not set
# CONFIG_INTEL_TH is not set
# end of HW tracing support
# CONFIG_FPGA is not set
# CONFIG_FSI is not set
# CONFIG_SIOX is not set
# CONFIG_SLIMBUS is not set
# CONFIG_INTERCONNECT is not set
# CONFIG_COUNTER is not set
# CONFIG_PECI is not set
# CONFIG_HTE is not set
# end of Device Drivers
#
# File systems
#
# CONFIG_VALIDATE_FS_PARSER is not set
CONFIG_FS_IOMAP=y
# CONFIG_EXT2_FS is not set
# CONFIG_EXT4_FS is not set
# CONFIG_JFS_FS is not set
# CONFIG_XFS_FS is not set
# CONFIG_GFS2_FS is not set
# CONFIG_BTRFS_FS is not set
# CONFIG_NILFS2_FS is not set
# CONFIG_F2FS_FS is not set
CONFIG_EXPORTFS=y
# CONFIG_EXPORTFS_BLOCK_OPS is not set
CONFIG_FILE_LOCKING=y
# CONFIG_FS_ENCRYPTION is not set
# CONFIG_FS_VERITY is not set
# CONFIG_DNOTIFY is not set
# CONFIG_INOTIFY_USER is not set
# CONFIG_FANOTIFY is not set
# CONFIG_QUOTA is not set
# CONFIG_AUTOFS_FS is not set
# CONFIG_FUSE_FS is not set
# CONFIG_OVERLAY_FS is not set
#
# Caches
#
# end of Caches
#
# CD-ROM/DVD Filesystems
#
# CONFIG_ISO9660_FS is not set
# CONFIG_UDF_FS is not set
# end of CD-ROM/DVD Filesystems
#
# DOS/FAT/EXFAT/NT Filesystems
#
# CONFIG_MSDOS_FS is not set
# CONFIG_VFAT_FS is not set
# CONFIG_EXFAT_FS is not set
# CONFIG_NTFS3_FS is not set
# CONFIG_NTFS_FS is not set
# end of DOS/FAT/EXFAT/NT Filesystems
#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
CONFIG_PROC_SYSCTL=y
# CONFIG_PROC_CHILDREN is not set
CONFIG_KERNFS=y
CONFIG_SYSFS=y
# CONFIG_CONFIGFS_FS is not set
# end of Pseudo filesystems
# CONFIG_MISC_FILESYSTEMS is not set
# CONFIG_NLS is not set
# CONFIG_UNICODE is not set
CONFIG_IO_WQ=y
# end of File systems
#
# Security options
#
# CONFIG_KEYS is not set
# CONFIG_SECURITY_DMESG_RESTRICT is not set
CONFIG_PROC_MEM_ALWAYS_FORCE=y
# CONFIG_PROC_MEM_FORCE_PTRACE is not set
# CONFIG_PROC_MEM_NO_FORCE is not set
# CONFIG_SECURITY is not set
# CONFIG_SECURITYFS is not set
# CONFIG_STATIC_USERMODEHELPER is not set
CONFIG_DEFAULT_SECURITY_DAC=y
#
# Kernel hardening options
#
#
# Memory initialization
#
CONFIG_CC_HAS_AUTO_VAR_INIT_PATTERN=y
CONFIG_CC_HAS_AUTO_VAR_INIT_ZERO_BARE=y
CONFIG_CC_HAS_AUTO_VAR_INIT_ZERO=y
# CONFIG_INIT_STACK_NONE is not set
# CONFIG_INIT_STACK_ALL_PATTERN is not set
CONFIG_INIT_STACK_ALL_ZERO=y
CONFIG_CC_HAS_SANCOV_STACK_DEPTH_CALLBACK=y
# CONFIG_KSTACK_ERASE is not set
# CONFIG_INIT_ON_ALLOC_DEFAULT_ON is not set
# CONFIG_INIT_ON_FREE_DEFAULT_ON is not set
# end of Memory initialization
#
# Bounds checking
#
# CONFIG_FORTIFY_SOURCE is not set
# CONFIG_HARDENED_USERCOPY is not set
# end of Bounds checking
#
# Hardening of kernel data structures
#
# CONFIG_LIST_HARDENED is not set
# CONFIG_BUG_ON_DATA_CORRUPTION is not set
# end of Hardening of kernel data structures
CONFIG_CC_HAS_RANDSTRUCT=y
CONFIG_RANDSTRUCT_NONE=y
# CONFIG_RANDSTRUCT_FULL is not set
# end of Kernel hardening options
# end of Security options
# CONFIG_CRYPTO is not set
#
# Library routines
#
# CONFIG_PACKING is not set
CONFIG_BITREVERSE=y
CONFIG_HAVE_ARCH_BITREVERSE=y
CONFIG_GENERIC_STRNCPY_FROM_USER=y
CONFIG_GENERIC_STRNLEN_USER=y
# CONFIG_CORDIC is not set
# CONFIG_PRIME_NUMBERS is not set
CONFIG_RATIONAL=y
CONFIG_ARCH_USE_CMPXCHG_LOCKREF=y
CONFIG_CRC32=y
CONFIG_CRC_OPTIMIZATIONS=y
#
# Crypto library routines
#
CONFIG_CRYPTO_LIB_BLAKE2S_ARCH=y
CONFIG_CRYPTO_LIB_POLY1305_RSIZE=9
# end of Crypto library routines
# CONFIG_RANDOM32_SELFTEST is not set
# CONFIG_XZ_DEC is not set
CONFIG_GENERIC_ALLOCATOR=y
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT=y
CONFIG_HAS_DMA=y
CONFIG_DMA_OPS_HELPERS=y
CONFIG_NEED_DMA_MAP_STATE=y
CONFIG_ARCH_HAS_DMA_WRITE_COMBINE=y
CONFIG_DMA_DECLARE_COHERENT=y
CONFIG_ARCH_HAS_SETUP_DMA_OPS=y
CONFIG_ARCH_HAS_SYNC_DMA_FOR_DEVICE=y
CONFIG_ARCH_HAS_SYNC_DMA_FOR_CPU=y
CONFIG_DMA_NEED_SYNC=y
CONFIG_DMA_NONCOHERENT_MMAP=y
CONFIG_DMA_GLOBAL_POOL=y
# CONFIG_DMA_API_DEBUG is not set
CONFIG_FORCE_NR_CPUS=y
CONFIG_GENERIC_ATOMIC64=y
# CONFIG_IRQ_POLL is not set
CONFIG_LIBFDT=y
CONFIG_ARCH_STACKWALK=y
CONFIG_STACKDEPOT=y
CONFIG_STACKDEPOT_MAX_FRAMES=64
CONFIG_SBITMAP=y
# CONFIG_LWQ_TEST is not set
# end of Library routines
CONFIG_GENERIC_LIB_DEVMEM_IS_ALLOWED=y
#
# Kernel hacking
#
#
# printk and dmesg options
#
# CONFIG_PRINTK_TIME is not set
# CONFIG_PRINTK_CALLER is not set
# CONFIG_STACKTRACE_BUILD_ID is not set
CONFIG_CONSOLE_LOGLEVEL_DEFAULT=7
CONFIG_CONSOLE_LOGLEVEL_QUIET=4
CONFIG_MESSAGE_LOGLEVEL_DEFAULT=4
# CONFIG_DYNAMIC_DEBUG is not set
# CONFIG_DYNAMIC_DEBUG_CORE is not set
# CONFIG_SYMBOLIC_ERRNAME is not set
CONFIG_DEBUG_BUGVERBOSE=y
# CONFIG_DEBUG_BUGVERBOSE_DETAILED is not set
# end of printk and dmesg options
# CONFIG_DEBUG_KERNEL is not set
#
# Compile-time checks and compiler options
#
CONFIG_AS_HAS_NON_CONST_ULEB128=y
CONFIG_FRAME_WARN=1280
# CONFIG_STRIP_ASM_SYMS is not set
# CONFIG_HEADERS_INSTALL is not set
CONFIG_SECTION_MISMATCH_WARN_ONLY=y
# CONFIG_WARN_CONTEXT_ANALYSIS is not set
# end of Compile-time checks and compiler options
#
# Generic Kernel Debugging Instruments
#
# CONFIG_MAGIC_SYSRQ is not set
# CONFIG_DEBUG_FS is not set
CONFIG_ARCH_HAS_UBSAN=y
# CONFIG_UBSAN is not set
# end of Generic Kernel Debugging Instruments
#
# Networking Debugging
#
# end of Networking Debugging
#
# Memory Debugging
#
# CONFIG_PAGE_EXTENSION is not set
CONFIG_SLUB_DEBUG=y
# CONFIG_SLUB_DEBUG_ON is not set
# CONFIG_PAGE_POISONING is not set
CONFIG_HAVE_DEBUG_KMEMLEAK=y
CONFIG_DEBUG_MEMORY_INIT=y
CONFIG_CC_HAS_KASAN_GENERIC=y
CONFIG_CC_HAS_WORKING_NOSANITIZE_ADDRESS=y
# end of Memory Debugging
#
# Debug Oops, Lockups and Hangs
#
# CONFIG_PANIC_ON_OOPS is not set
CONFIG_PANIC_TIMEOUT=0
# end of Debug Oops, Lockups and Hangs
#
# Scheduler Debugging
#
# CONFIG_SCHEDSTATS is not set
# end of Scheduler Debugging
#
# Lock Debugging (spinlocks, mutexes, etc...)
#
# CONFIG_WW_MUTEX_SELFTEST is not set
# end of Lock Debugging (spinlocks, mutexes, etc...)
# CONFIG_DEBUG_IRQFLAGS is not set
CONFIG_STACKTRACE=y
#
# Debug kernel data structures
#
# end of Debug kernel data structures
#
# RCU Debugging
#
# end of RCU Debugging
CONFIG_HAVE_FUNCTION_TRACER=y
CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y
CONFIG_HAVE_FUNCTION_GRAPH_FREGS=y
CONFIG_HAVE_EXTRA_IPI_TRACEPOINTS=y
CONFIG_HAVE_SYSCALL_TRACEPOINTS=y
CONFIG_HAVE_C_RECORDMCOUNT=y
CONFIG_HAVE_BUILDTIME_MCOUNT_SORT=y
# CONFIG_SAMPLES is not set
#
# arm Debugging
#
CONFIG_UNWINDER_ARM=y
CONFIG_ARM_UNWIND=y
# CONFIG_DEBUG_USER is not set
CONFIG_DEBUG_LL_INCLUDE="mach/debug-macro.S"
CONFIG_UNCOMPRESS_INCLUDE="debug/uncompress.h"
# CONFIG_CORESIGHT is not set
# end of arm Debugging
#
# Kernel Testing and Coverage
#
# CONFIG_KUNIT is not set
CONFIG_ARCH_HAS_KCOV=y
# CONFIG_KCOV is not set
# CONFIG_RUNTIME_TESTING_MENU is not set
CONFIG_ARCH_USE_MEMTEST=y
# CONFIG_MEMTEST is not set
# end of Kernel Testing and Coverage
#
# Rust hacking
#
# end of Rust hacking
# end of Kernel hacking
^ permalink raw reply
* Re: [PATCH] rhashtable: Restore insecure_elasticity toggle
From: kernel test robot @ 2026-04-20 1:46 UTC (permalink / raw)
To: Herbert Xu, Tejun Heo
Cc: oe-kbuild-all, Thomas Graf, David Vernet, Andrea Righi,
Changwoo Min, Emil Tsalapatis, linux-crypto, sched-ext,
linux-kernel, Florian Westphal, netdev, NeilBrown
In-Reply-To: <aeLgjAeJuidWNy3N@gondor.apana.org.au>
[-- Attachment #1: Type: text/plain, Size: 5844 bytes --]
Hi Herbert,
kernel test robot noticed the following build errors:
[auto build test ERROR on akpm-mm/mm-nonmm-unstable]
[also build test ERROR on net/main net-next/main linus/master horms-ipvs/master v7.0 next-20260417]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/Herbert-Xu/rhashtable-Restore-insecure_elasticity-toggle/20260418-233732
base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-nonmm-unstable
patch link: https://lore.kernel.org/r/aeLgjAeJuidWNy3N%40gondor.apana.org.au
patch subject: [PATCH] rhashtable: Restore insecure_elasticity toggle
config: alpha-allnoconfig
compiler: alpha-linux-gcc (GCC) 15.2.0
reproduce (this is a W=1 build):
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202604200210.OEDP0u1Y-lkp@intel.com/
All errors (new ones prefixed by >>):
In file included from lib/rhashtable.c:25:
include/linux/rhashtable.h: In function '__rhashtable_insert_fast':
>> include/linux/rhashtable.h:831:39: error: invalid type argument of '->' (have 'struct rhashtable_params')
831 | if (elasticity <= 0 && !params->insecure_elasticity)
| ^~
include/linux/rhashtable.h:839:20: error: invalid type argument of '->' (have 'struct rhashtable_params')
839 | !params->insecure_elasticity)
| ^~
lib/rhashtable.c: In function 'rhashtable_lookup_one':
>> lib/rhashtable.c:541:38: error: invalid type argument of '->' (have 'struct rhashtable_params')
541 | if (elasticity <= 0 && !ht->p->insecure_elasticity)
| ^~
lib/rhashtable.c: In function 'rhashtable_insert_one':
lib/rhashtable.c:572:19: error: invalid type argument of '->' (have 'struct rhashtable_params')
572 | !ht->p->insecure_elasticity)
| ^~
vim +831 include/linux/rhashtable.h
756
757 /* Internal function, please use rhashtable_insert_fast() instead. This
758 * function returns the existing element already in hashes if there is a clash,
759 * otherwise it returns an error via ERR_PTR().
760 */
761 static __always_inline void *__rhashtable_insert_fast(
762 struct rhashtable *ht, const void *key, struct rhash_head *obj,
763 const struct rhashtable_params params, bool rhlist)
764 {
765 struct rhashtable_compare_arg arg = {
766 .ht = ht,
767 .key = key,
768 };
769 struct rhash_lock_head __rcu **bkt;
770 struct rhash_head __rcu **pprev;
771 struct bucket_table *tbl;
772 struct rhash_head *head;
773 unsigned long flags;
774 unsigned int hash;
775 int elasticity;
776 void *data;
777
778 rcu_read_lock();
779
780 tbl = rht_dereference_rcu(ht->tbl, ht);
781 hash = rht_head_hashfn(ht, tbl, obj, params);
782 elasticity = RHT_ELASTICITY;
783 bkt = rht_bucket_insert(ht, tbl, hash);
784 data = ERR_PTR(-ENOMEM);
785 if (!bkt)
786 goto out;
787 pprev = NULL;
788 flags = rht_lock(tbl, bkt);
789
790 if (unlikely(rcu_access_pointer(tbl->future_tbl))) {
791 slow_path:
792 rht_unlock(tbl, bkt, flags);
793 rcu_read_unlock();
794 return rhashtable_insert_slow(ht, key, obj);
795 }
796
797 rht_for_each_from(head, rht_ptr(bkt, tbl, hash), tbl, hash) {
798 struct rhlist_head *plist;
799 struct rhlist_head *list;
800
801 elasticity--;
802 if (!key ||
803 (params.obj_cmpfn ?
804 params.obj_cmpfn(&arg, rht_obj(ht, head)) :
805 rhashtable_compare(&arg, rht_obj(ht, head)))) {
806 pprev = &head->next;
807 continue;
808 }
809
810 data = rht_obj(ht, head);
811
812 if (!rhlist)
813 goto out_unlock;
814
815
816 list = container_of(obj, struct rhlist_head, rhead);
817 plist = container_of(head, struct rhlist_head, rhead);
818
819 RCU_INIT_POINTER(list->next, plist);
820 head = rht_dereference_bucket(head->next, tbl, hash);
821 RCU_INIT_POINTER(list->rhead.next, head);
822 if (pprev) {
823 rcu_assign_pointer(*pprev, obj);
824 rht_unlock(tbl, bkt, flags);
825 } else
826 rht_assign_unlock(tbl, bkt, obj, flags);
827 data = NULL;
828 goto out;
829 }
830
> 831 if (elasticity <= 0 && !params->insecure_elasticity)
832 goto slow_path;
833
834 data = ERR_PTR(-E2BIG);
835 if (unlikely(rht_grow_above_max(ht, tbl)))
836 goto out_unlock;
837
838 if (unlikely(rht_grow_above_100(ht, tbl)) &&
839 !params->insecure_elasticity)
840 goto slow_path;
841
842 /* Inserting at head of list makes unlocking free. */
843 head = rht_ptr(bkt, tbl, hash);
844
845 RCU_INIT_POINTER(obj->next, head);
846 if (rhlist) {
847 struct rhlist_head *list;
848
849 list = container_of(obj, struct rhlist_head, rhead);
850 RCU_INIT_POINTER(list->next, NULL);
851 }
852
853 atomic_inc(&ht->nelems);
854 rht_assign_unlock(tbl, bkt, obj, flags);
855
856 if (rht_grow_above_75(ht, tbl))
857 schedule_work(&ht->run_work);
858
859 data = NULL;
860 out:
861 rcu_read_unlock();
862
863 return data;
864
865 out_unlock:
866 rht_unlock(tbl, bkt, flags);
867 goto out;
868 }
869
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
[-- Attachment #2: reproduce --]
[-- Type: text/plain, Size: 724 bytes --]
reproduce (this is a W=1 build):
git remote add akpm-mm https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git
git fetch akpm-mm mm-nonmm-unstable
git checkout akpm-mm/mm-nonmm-unstable
b4 shazam https://lore.kernel.org/r/aeLgjAeJuidWNy3N@gondor.apana.org.au
git clone https://github.com/intel/lkp-tests.git ~/lkp-tests
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-15.2.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=alpha olddefconfig
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-15.2.0 ~/lkp-tests/kbuild/make.cross W=1 O=build_dir ARCH=alpha SHELL=/bin/bash lib/
[-- Attachment #3: config --]
[-- Type: text/plain, Size: 24460 bytes --]
#
# Automatically generated file; DO NOT EDIT.
# Linux/alpha 7.0.0-rc5 Kernel Configuration
#
CONFIG_CC_VERSION_TEXT="alpha-linux-gcc (GCC) 15.2.0"
CONFIG_CC_IS_GCC=y
CONFIG_GCC_VERSION=150200
CONFIG_CLANG_VERSION=0
CONFIG_AS_IS_GNU=y
CONFIG_AS_VERSION=24500
CONFIG_LD_IS_BFD=y
CONFIG_LD_VERSION=24500
CONFIG_LLD_VERSION=0
CONFIG_RUSTC_VERSION=0
CONFIG_RUSTC_LLVM_VERSION=0
CONFIG_CC_HAS_ASM_INLINE=y
CONFIG_CC_HAS_ASSUME=y
CONFIG_CC_HAS_NO_PROFILE_FN_ATTR=y
CONFIG_CC_HAS_COUNTED_BY=y
CONFIG_CC_HAS_MULTIDIMENSIONAL_NONSTRING=y
CONFIG_LD_CAN_USE_KEEP_IN_OVERLAY=y
CONFIG_PAHOLE_VERSION=131
CONFIG_IRQ_WORK=y
#
# General setup
#
CONFIG_BROKEN_ON_SMP=y
CONFIG_INIT_ENV_ARG_LIMIT=32
# CONFIG_COMPILE_TEST is not set
# CONFIG_WERROR is not set
CONFIG_LOCALVERSION=""
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_BUILD_SALT=""
CONFIG_DEFAULT_INIT=""
CONFIG_DEFAULT_HOSTNAME="(none)"
# CONFIG_SYSVIPC is not set
# CONFIG_WATCH_QUEUE is not set
# CONFIG_CROSS_MEMORY_ATTACH is not set
CONFIG_HAVE_ARCH_AUDITSYSCALL=y
#
# IRQ subsystem
#
CONFIG_GENERIC_IRQ_PROBE=y
CONFIG_GENERIC_IRQ_SHOW=y
# end of IRQ subsystem
CONFIG_GENERIC_CLOCKEVENTS=y
#
# Timers subsystem
#
CONFIG_HZ_PERIODIC=y
# CONFIG_NO_HZ_IDLE is not set
# CONFIG_NO_HZ is not set
# CONFIG_HIGH_RES_TIMERS is not set
# CONFIG_POSIX_AUX_CLOCKS is not set
# end of Timers subsystem
#
# BPF subsystem
#
# CONFIG_BPF_SYSCALL is not set
# end of BPF subsystem
CONFIG_PREEMPT_NONE_BUILD=y
CONFIG_PREEMPT_NONE=y
#
# CPU/Task time and stats accounting
#
CONFIG_TICK_CPU_ACCOUNTING=y
# CONFIG_BSD_PROCESS_ACCT is not set
# CONFIG_PSI is not set
# end of CPU/Task time and stats accounting
#
# RCU Subsystem
#
CONFIG_TINY_RCU=y
# CONFIG_RCU_EXPERT is not set
CONFIG_TINY_SRCU=y
# end of RCU Subsystem
# CONFIG_IKCONFIG is not set
# CONFIG_IKHEADERS is not set
CONFIG_LOG_BUF_SHIFT=17
#
# Scheduler features
#
# end of Scheduler features
CONFIG_CC_HAS_INT128=y
CONFIG_CC_IMPLICIT_FALLTHROUGH="-Wimplicit-fallthrough=5"
CONFIG_GCC10_NO_ARRAY_BOUNDS=y
CONFIG_CC_NO_ARRAY_BOUNDS=y
CONFIG_GCC_NO_STRINGOP_OVERFLOW=y
CONFIG_CC_NO_STRINGOP_OVERFLOW=y
# CONFIG_CGROUPS is not set
CONFIG_NAMESPACES=y
# CONFIG_UTS_NS is not set
# CONFIG_USER_NS is not set
# CONFIG_PID_NS is not set
# CONFIG_CHECKPOINT_RESTORE is not set
# CONFIG_SCHED_AUTOGROUP is not set
# CONFIG_RELAY is not set
# CONFIG_BLK_DEV_INITRD is not set
# CONFIG_BOOT_CONFIG is not set
CONFIG_CMDLINE_LOG_WRAP_IDEAL_LEN=1021
CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE=y
# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
CONFIG_SYSCTL=y
# CONFIG_SYSFS_SYSCALL is not set
CONFIG_HAVE_PCSPKR_PLATFORM=y
# CONFIG_EXPERT is not set
CONFIG_MULTIUSER=y
CONFIG_FHANDLE=y
CONFIG_POSIX_TIMERS=y
CONFIG_PRINTK=y
CONFIG_BUG=y
CONFIG_ELF_CORE=y
CONFIG_PCSPKR_PLATFORM=y
CONFIG_FUTEX=y
CONFIG_FUTEX_PI=y
CONFIG_FUTEX_PRIVATE_HASH=y
CONFIG_EPOLL=y
CONFIG_SIGNALFD=y
CONFIG_TIMERFD=y
CONFIG_EVENTFD=y
CONFIG_SHMEM=y
CONFIG_AIO=y
CONFIG_IO_URING=y
CONFIG_ADVISE_SYSCALLS=y
CONFIG_MEMBARRIER=y
CONFIG_CACHESTAT_SYSCALL=y
CONFIG_KALLSYMS=y
# CONFIG_KALLSYMS_SELFTEST is not set
CONFIG_HAVE_PERF_EVENTS=y
#
# Kernel Performance Events And Counters
#
# CONFIG_PERF_EVENTS is not set
# end of Kernel Performance Events And Counters
# CONFIG_PROFILING is not set
#
# Kexec and crash features
#
# end of Kexec and crash features
#
# Live Update and Kexec HandOver
#
# end of Live Update and Kexec HandOver
# end of General setup
CONFIG_ALPHA=y
CONFIG_64BIT=y
CONFIG_MMU=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_GENERIC_ISA_DMA=y
CONFIG_PGTABLE_LEVELS=3
CONFIG_AUDIT_ARCH=y
#
# System setup
#
CONFIG_ALPHA_GENERIC=y
# CONFIG_ALPHA_ALCOR is not set
# CONFIG_ALPHA_DP264 is not set
# CONFIG_ALPHA_EIGER is not set
# CONFIG_ALPHA_LX164 is not set
# CONFIG_ALPHA_MARVEL is not set
# CONFIG_ALPHA_MIATA is not set
# CONFIG_ALPHA_MIKASA is not set
# CONFIG_ALPHA_NAUTILUS is not set
# CONFIG_ALPHA_NORITAKE is not set
# CONFIG_ALPHA_PC164 is not set
# CONFIG_ALPHA_RAWHIDE is not set
# CONFIG_ALPHA_RUFFIAN is not set
# CONFIG_ALPHA_RX164 is not set
# CONFIG_ALPHA_SX164 is not set
# CONFIG_ALPHA_SABLE is not set
# CONFIG_ALPHA_SHARK is not set
# CONFIG_ALPHA_TAKARA is not set
# CONFIG_ALPHA_TITAN is not set
# CONFIG_ALPHA_WILDFIRE is not set
CONFIG_ISA=y
CONFIG_ISA_DMA_API=y
CONFIG_GENERIC_HWEIGHT=y
CONFIG_ALPHA_BROKEN_IRQ_MASK=y
CONFIG_ARCH_MAY_HAVE_PC_FDC=y
# CONFIG_SMP is not set
# CONFIG_ARCH_SPARSEMEM_ENABLE is not set
# CONFIG_ALPHA_WTINT is not set
# CONFIG_VERBOSE_MCHECK is not set
# CONFIG_HZ_32 is not set
# CONFIG_HZ_64 is not set
# CONFIG_HZ_128 is not set
# CONFIG_HZ_256 is not set
CONFIG_HZ_1024=y
# CONFIG_HZ_1200 is not set
CONFIG_HZ=1024
# CONFIG_SRM_ENV is not set
# end of System setup
CONFIG_DUMMY_CONSOLE=y
CONFIG_CPU_MITIGATIONS=y
CONFIG_ARCH_HAS_DMA_OPS=y
#
# General architecture-dependent options
#
CONFIG_HAVE_64BIT_ALIGNED_ACCESS=y
CONFIG_GENERIC_SMP_IDLE_THREAD=y
CONFIG_ARCH_32BIT_USTAT_F_TINODE=y
CONFIG_HAVE_ASM_MODVERSIONS=y
CONFIG_MMU_GATHER_TABLE_FREE=y
CONFIG_MMU_GATHER_RCU_TABLE_FREE=y
CONFIG_MMU_GATHER_NO_RANGE=y
CONFIG_MMU_GATHER_MERGE_VMAS=y
CONFIG_MMU_LAZY_TLB_REFCOUNT=y
CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG=y
CONFIG_ARCH_WANT_IPC_PARSE_VERSION=y
CONFIG_LTO_NONE=y
CONFIG_HAVE_VIRT_CPU_ACCOUNTING_GEN=y
CONFIG_HAVE_MOD_ARCH_SPECIFIC=y
CONFIG_MODULES_USE_ELF_RELA=y
CONFIG_HAVE_PAGE_SIZE_8KB=y
CONFIG_PAGE_SIZE_8KB=y
CONFIG_PAGE_SIZE_LESS_THAN_64KB=y
CONFIG_PAGE_SIZE_LESS_THAN_256KB=y
CONFIG_PAGE_SHIFT=13
CONFIG_ISA_BUS_API=y
CONFIG_ODD_RT_SIGACTION=y
CONFIG_OLD_SIGSUSPEND=y
# CONFIG_COMPAT_32BIT_TIME is not set
CONFIG_ARCH_NO_PREEMPT=y
CONFIG_CPU_NO_EFFICIENT_FFS=y
#
# GCOV-based kernel profiling
#
# end of GCOV-based kernel profiling
CONFIG_FUNCTION_ALIGNMENT=0
CONFIG_CC_HAS_MIN_FUNCTION_ALIGNMENT=y
CONFIG_CC_HAS_SANE_FUNCTION_ALIGNMENT=y
# end of General architecture-dependent options
CONFIG_RT_MUTEXES=y
# CONFIG_MODULES is not set
CONFIG_BLOCK=y
# CONFIG_BLOCK_LEGACY_AUTOLOAD is not set
# CONFIG_BLK_DEV_BSGLIB is not set
# CONFIG_BLK_DEV_INTEGRITY is not set
# CONFIG_BLK_DEV_WRITE_MOUNTED is not set
# CONFIG_BLK_DEV_ZONED is not set
# CONFIG_BLK_WBT is not set
# CONFIG_BLK_INLINE_ENCRYPTION is not set
#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_OSF_PARTITION=y
CONFIG_MSDOS_PARTITION=y
CONFIG_EFI_PARTITION=y
# end of Partition Types
#
# IO Schedulers
#
# CONFIG_MQ_IOSCHED_DEADLINE is not set
# CONFIG_MQ_IOSCHED_KYBER is not set
# CONFIG_IOSCHED_BFQ is not set
# end of IO Schedulers
CONFIG_INLINE_SPIN_UNLOCK_IRQ=y
CONFIG_INLINE_READ_UNLOCK=y
CONFIG_INLINE_READ_UNLOCK_IRQ=y
CONFIG_INLINE_WRITE_UNLOCK=y
CONFIG_INLINE_WRITE_UNLOCK_IRQ=y
#
# Executable file formats
#
# CONFIG_BINFMT_ELF is not set
# CONFIG_BINFMT_SCRIPT is not set
# CONFIG_BINFMT_MISC is not set
CONFIG_COREDUMP=y
# end of Executable file formats
#
# Memory Management options
#
# CONFIG_SWAP is not set
#
# Slab allocator options
#
CONFIG_SLUB=y
# CONFIG_SLAB_MERGE_DEFAULT is not set
# CONFIG_SLAB_FREELIST_RANDOM is not set
# CONFIG_SLAB_FREELIST_HARDENED is not set
# CONFIG_SLAB_BUCKETS is not set
# CONFIG_SLUB_STATS is not set
# CONFIG_RANDOM_KMALLOC_CACHES is not set
# end of Slab allocator options
# CONFIG_SHUFFLE_PAGE_ALLOCATOR is not set
# CONFIG_COMPAT_BRK is not set
CONFIG_FLATMEM=y
CONFIG_EXCLUSIVE_SYSTEM_RAM=y
# CONFIG_COMPACTION is not set
# CONFIG_PAGE_REPORTING is not set
CONFIG_PCP_BATCH_SCALE_MAX=5
CONFIG_PHYS_ADDR_T_64BIT=y
# CONFIG_KSM is not set
CONFIG_DEFAULT_MMAP_MIN_ADDR=4096
CONFIG_PAGE_MAPCOUNT=y
CONFIG_NEED_PER_CPU_KM=y
# CONFIG_CMA is not set
CONFIG_PAGE_BLOCK_MAX_ORDER=10
# CONFIG_IDLE_PAGE_TRACKING is not set
CONFIG_ARCH_HAS_CURRENT_STACK_POINTER=y
CONFIG_ZONE_DMA=y
CONFIG_VM_EVENT_COUNTERS=y
# CONFIG_PERCPU_STATS is not set
#
# GUP_TEST needs to have DEBUG_FS enabled
#
# CONFIG_DMAPOOL_TEST is not set
# CONFIG_ANON_VMA_NAME is not set
# CONFIG_USERFAULTFD is not set
# CONFIG_LRU_GEN is not set
CONFIG_LOCK_MM_AND_FIND_VMA=y
CONFIG_PT_RECLAIM=y
#
# Data Access Monitoring
#
# CONFIG_DAMON is not set
# end of Data Access Monitoring
# end of Memory Management options
# CONFIG_NET is not set
#
# Device Drivers
#
CONFIG_HAVE_EISA=y
# CONFIG_EISA is not set
CONFIG_HAVE_PCI=y
CONFIG_FORCE_PCI=y
CONFIG_GENERIC_PCI_IOMAP=y
CONFIG_PCI=y
CONFIG_PCI_DOMAINS=y
CONFIG_PCI_SYSCALL=y
# CONFIG_PCIEPORTBUS is not set
CONFIG_PCIEASPM=y
CONFIG_PCIEASPM_DEFAULT=y
# CONFIG_PCIEASPM_POWERSAVE is not set
# CONFIG_PCIEASPM_POWER_SUPERSAVE is not set
# CONFIG_PCIEASPM_PERFORMANCE is not set
# CONFIG_PCIE_PTM is not set
# CONFIG_PCI_MSI is not set
CONFIG_PCI_QUIRKS=y
# CONFIG_PCI_STUB is not set
# CONFIG_PCI_TSM is not set
# CONFIG_PCI_DOE is not set
# CONFIG_PCI_IOV is not set
# CONFIG_PCI_PRI is not set
# CONFIG_PCI_PASID is not set
# CONFIG_PCIE_TPH is not set
CONFIG_VGA_ARB=y
CONFIG_VGA_ARB_MAX_GPUS=16
# CONFIG_HOTPLUG_PCI is not set
#
# PCI controller drivers
#
#
# Cadence-based PCIe controllers
#
# end of Cadence-based PCIe controllers
#
# DesignWare-based PCIe controllers
#
# end of DesignWare-based PCIe controllers
#
# Mobiveil-based PCIe controllers
#
# end of Mobiveil-based PCIe controllers
#
# PLDA-based PCIe controllers
#
# end of PLDA-based PCIe controllers
# end of PCI controller drivers
#
# PCI Endpoint
#
# CONFIG_PCI_ENDPOINT is not set
# end of PCI Endpoint
#
# PCI switch controller drivers
#
# CONFIG_PCI_SW_SWITCHTEC is not set
# end of PCI switch controller drivers
# CONFIG_PCI_PWRCTRL_SLOT is not set
# CONFIG_CXL_BUS is not set
# CONFIG_PCCARD is not set
# CONFIG_RAPIDIO is not set
#
# Generic Driver Options
#
# CONFIG_UEVENT_HELPER is not set
# CONFIG_DEVTMPFS is not set
# CONFIG_STANDALONE is not set
# CONFIG_PREVENT_FIRMWARE_BUILD is not set
#
# Firmware loader
#
CONFIG_FW_LOADER=y
CONFIG_EXTRA_FIRMWARE=""
# CONFIG_FW_LOADER_USER_HELPER is not set
# CONFIG_FW_LOADER_COMPRESS is not set
# CONFIG_FW_UPLOAD is not set
# end of Firmware loader
CONFIG_ALLOW_DEV_COREDUMP=y
CONFIG_GENERIC_CPU_VULNERABILITIES=y
# CONFIG_FW_DEVLINK_SYNC_STATE_TIMEOUT is not set
# end of Generic Driver Options
#
# Bus devices
#
# CONFIG_MHI_BUS is not set
# CONFIG_MHI_BUS_EP is not set
# end of Bus devices
#
# Firmware Drivers
#
#
# ARM System Control and Management Interface Protocol
#
# end of ARM System Control and Management Interface Protocol
# CONFIG_GOOGLE_FIRMWARE is not set
#
# Qualcomm firmware drivers
#
# end of Qualcomm firmware drivers
#
# Tegra firmware driver
#
# end of Tegra firmware driver
# end of Firmware Drivers
# CONFIG_FWCTL is not set
# CONFIG_GNSS is not set
# CONFIG_MTD is not set
# CONFIG_OF is not set
CONFIG_ARCH_MIGHT_HAVE_PC_PARPORT=y
# CONFIG_PARPORT is not set
# CONFIG_PNP is not set
# CONFIG_BLK_DEV is not set
#
# NVME Support
#
# CONFIG_BLK_DEV_NVME is not set
# CONFIG_NVME_FC is not set
# CONFIG_NVME_TARGET is not set
# end of NVME Support
#
# Misc devices
#
# CONFIG_DUMMY_IRQ is not set
# CONFIG_PHANTOM is not set
# CONFIG_RPMB is not set
# CONFIG_TIFM_CORE is not set
# CONFIG_ENCLOSURE_SERVICES is not set
# CONFIG_HP_ILO is not set
# CONFIG_SRAM is not set
# CONFIG_DW_XDATA_PCIE is not set
# CONFIG_PCI_ENDPOINT_TEST is not set
# CONFIG_XILINX_SDFEC is not set
# CONFIG_NTSYNC is not set
# CONFIG_C2PORT is not set
#
# EEPROM support
#
# CONFIG_EEPROM_93CX6 is not set
# end of EEPROM support
# CONFIG_CB710_CORE is not set
#
# Altera FPGA firmware download module (requires I2C)
#
# CONFIG_INTEL_MEI is not set
# CONFIG_GENWQE is not set
# CONFIG_MISC_ALCOR_PCI is not set
# CONFIG_MISC_RTSX_PCI is not set
# CONFIG_PVPANIC is not set
# end of Misc devices
#
# SCSI device support
#
CONFIG_SCSI_MOD=y
# CONFIG_RAID_ATTRS is not set
# CONFIG_SCSI is not set
# end of SCSI device support
# CONFIG_ATA is not set
# CONFIG_MD is not set
# CONFIG_TARGET_CORE is not set
# CONFIG_FUSION is not set
#
# IEEE 1394 (FireWire) support
#
# CONFIG_FIREWIRE is not set
# CONFIG_FIREWIRE_NOSY is not set
# end of IEEE 1394 (FireWire) support
#
# Input device support
#
CONFIG_INPUT=y
# CONFIG_INPUT_FF_MEMLESS is not set
# CONFIG_INPUT_SPARSEKMAP is not set
# CONFIG_INPUT_MATRIXKMAP is not set
#
# Userland interfaces
#
# CONFIG_INPUT_MOUSEDEV is not set
# CONFIG_INPUT_JOYDEV is not set
# CONFIG_INPUT_EVDEV is not set
#
# Input Device Drivers
#
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
# CONFIG_INPUT_JOYSTICK is not set
# CONFIG_INPUT_TABLET is not set
# CONFIG_INPUT_TOUCHSCREEN is not set
# CONFIG_INPUT_MISC is not set
# CONFIG_RMI4_CORE is not set
#
# Hardware I/O ports
#
# CONFIG_SERIO is not set
CONFIG_ARCH_MIGHT_HAVE_PC_SERIO=y
# CONFIG_GAMEPORT is not set
# end of Hardware I/O ports
# end of Input device support
#
# Character devices
#
CONFIG_TTY=y
CONFIG_VT=y
CONFIG_CONSOLE_TRANSLATIONS=y
CONFIG_VT_CONSOLE=y
# CONFIG_VT_HW_CONSOLE_BINDING is not set
CONFIG_UNIX98_PTYS=y
# CONFIG_LEGACY_PTYS is not set
# CONFIG_LEGACY_TIOCSTI is not set
# CONFIG_LDISC_AUTOLOAD is not set
#
# Serial drivers
#
# CONFIG_SERIAL_8250 is not set
#
# Non-8250 serial port support
#
# CONFIG_SERIAL_UARTLITE is not set
# CONFIG_SERIAL_JSM is not set
# CONFIG_SERIAL_SCCNXP is not set
# CONFIG_SERIAL_ALTERA_JTAGUART is not set
# CONFIG_SERIAL_ALTERA_UART is not set
# CONFIG_SERIAL_ARC is not set
# CONFIG_SERIAL_RP2 is not set
# CONFIG_SERIAL_FSL_LPUART is not set
# CONFIG_SERIAL_FSL_LINFLEXUART is not set
# end of Serial drivers
# CONFIG_SERIAL_NONSTANDARD is not set
# CONFIG_NOZOMI is not set
# CONFIG_NULL_TTY is not set
# CONFIG_SERIAL_DEV_BUS is not set
# CONFIG_VIRTIO_CONSOLE is not set
# CONFIG_IPMI_HANDLER is not set
# CONFIG_HW_RANDOM is not set
# CONFIG_DTLK is not set
# CONFIG_APPLICOM is not set
# CONFIG_DEVMEM is not set
# CONFIG_DEVPORT is not set
# CONFIG_TCG_TPM is not set
# CONFIG_XILLYBUS is not set
# end of Character devices
#
# I2C support
#
# CONFIG_I2C is not set
# end of I2C support
# CONFIG_I3C is not set
# CONFIG_SPI is not set
# CONFIG_SPMI is not set
# CONFIG_HSI is not set
# CONFIG_PPS is not set
#
# PTP clock support
#
CONFIG_PTP_1588_CLOCK_OPTIONAL=y
#
# Enable PHYLIB and NETWORK_PHY_TIMESTAMPING to see the additional clocks.
#
# end of PTP clock support
#
# DPLL device support
#
# end of DPLL device support
# CONFIG_PINCTRL is not set
CONFIG_GPIOLIB_LEGACY=y
# CONFIG_GPIOLIB is not set
# CONFIG_W1 is not set
# CONFIG_POWER_RESET is not set
# CONFIG_POWER_SEQUENCING is not set
# CONFIG_POWER_SUPPLY is not set
# CONFIG_HWMON is not set
# CONFIG_THERMAL is not set
# CONFIG_WATCHDOG is not set
CONFIG_SSB_POSSIBLE=y
# CONFIG_SSB is not set
CONFIG_BCMA_POSSIBLE=y
# CONFIG_BCMA is not set
#
# Multifunction device drivers
#
# CONFIG_MFD_MADERA is not set
# CONFIG_LPC_ICH is not set
# CONFIG_LPC_SCH is not set
# CONFIG_MFD_JANZ_CMODIO is not set
# CONFIG_MFD_KEMPLD is not set
# CONFIG_MFD_MT6397 is not set
# CONFIG_MFD_RDC321X is not set
# CONFIG_MFD_SM501 is not set
# CONFIG_MFD_SYSCON is not set
# CONFIG_MFD_TQMX86 is not set
# CONFIG_MFD_VX855 is not set
# end of Multifunction device drivers
# CONFIG_REGULATOR is not set
# CONFIG_RC_CORE is not set
#
# CEC support
#
# CONFIG_MEDIA_CEC_SUPPORT is not set
# end of CEC support
# CONFIG_MEDIA_SUPPORT is not set
#
# Graphics support
#
# CONFIG_AUXDISPLAY is not set
# CONFIG_AGP is not set
# CONFIG_DRM is not set
#
# Frame buffer Devices
#
# CONFIG_FB is not set
# end of Frame buffer Devices
#
# Backlight & LCD device support
#
# CONFIG_LCD_CLASS_DEVICE is not set
# CONFIG_BACKLIGHT_CLASS_DEVICE is not set
# end of Backlight & LCD device support
#
# Console display driver support
#
# CONFIG_VGA_CONSOLE is not set
CONFIG_DUMMY_CONSOLE_COLUMNS=80
CONFIG_DUMMY_CONSOLE_ROWS=25
# end of Console display driver support
# CONFIG_TRACE_GPU_MEM is not set
# end of Graphics support
# CONFIG_SOUND is not set
# CONFIG_HID_SUPPORT is not set
CONFIG_USB_OHCI_LITTLE_ENDIAN=y
# CONFIG_USB_SUPPORT is not set
# CONFIG_MMC is not set
# CONFIG_MEMSTICK is not set
# CONFIG_NEW_LEDS is not set
# CONFIG_ACCESSIBILITY is not set
# CONFIG_RTC_CLASS is not set
# CONFIG_DMADEVICES is not set
#
# DMABUF options
#
# CONFIG_SYNC_FILE is not set
# CONFIG_DMABUF_HEAPS is not set
# end of DMABUF options
# CONFIG_UIO is not set
# CONFIG_VFIO is not set
# CONFIG_VIRT_DRIVERS is not set
# CONFIG_VIRTIO_MENU is not set
# CONFIG_VHOST_MENU is not set
#
# Microsoft Hyper-V guest support
#
# end of Microsoft Hyper-V guest support
# CONFIG_GREYBUS is not set
# CONFIG_COMEDI is not set
# CONFIG_GPIB is not set
# CONFIG_STAGING is not set
# CONFIG_GOLDFISH is not set
# CONFIG_COMMON_CLK is not set
# CONFIG_HWSPINLOCK is not set
#
# Clock Source drivers
#
CONFIG_I8253_LOCK=y
CONFIG_CLKBLD_I8253=y
# end of Clock Source drivers
# CONFIG_MAILBOX is not set
# CONFIG_IOMMU_SUPPORT is not set
#
# Remoteproc drivers
#
# CONFIG_REMOTEPROC is not set
# end of Remoteproc drivers
#
# Rpmsg drivers
#
# CONFIG_RPMSG_VIRTIO is not set
# end of Rpmsg drivers
#
# SOC (System On Chip) specific Drivers
#
#
# Amlogic SoC drivers
#
# end of Amlogic SoC drivers
#
# Broadcom SoC drivers
#
# end of Broadcom SoC drivers
#
# NXP/Freescale QorIQ SoC drivers
#
# end of NXP/Freescale QorIQ SoC drivers
#
# fujitsu SoC drivers
#
# end of fujitsu SoC drivers
#
# i.MX SoC drivers
#
# end of i.MX SoC drivers
#
# Enable LiteX SoC Builder specific drivers
#
# end of Enable LiteX SoC Builder specific drivers
# CONFIG_WPCM450_SOC is not set
#
# Qualcomm SoC drivers
#
# end of Qualcomm SoC drivers
# CONFIG_SOC_TI is not set
#
# Xilinx SoC drivers
#
# end of Xilinx SoC drivers
# end of SOC (System On Chip) specific Drivers
#
# PM Domains
#
#
# Amlogic PM Domains
#
# end of Amlogic PM Domains
#
# Broadcom PM Domains
#
# end of Broadcom PM Domains
#
# i.MX PM Domains
#
# end of i.MX PM Domains
#
# Qualcomm PM Domains
#
# end of Qualcomm PM Domains
# end of PM Domains
# CONFIG_PM_DEVFREQ is not set
# CONFIG_EXTCON is not set
# CONFIG_MEMORY is not set
# CONFIG_IIO is not set
# CONFIG_NTB is not set
# CONFIG_PWM is not set
#
# IRQ chip support
#
# end of IRQ chip support
# CONFIG_IPACK_BUS is not set
# CONFIG_RESET_CONTROLLER is not set
#
# PHY Subsystem
#
# CONFIG_GENERIC_PHY is not set
# CONFIG_PHY_CAN_TRANSCEIVER is not set
#
# PHY drivers for Broadcom platforms
#
# CONFIG_BCM_KONA_USB2_PHY is not set
# end of PHY drivers for Broadcom platforms
# CONFIG_PHY_PXA_28NM_HSIC is not set
# CONFIG_PHY_PXA_28NM_USB2 is not set
# end of PHY Subsystem
# CONFIG_POWERCAP is not set
# CONFIG_MCB is not set
# CONFIG_RAS is not set
# CONFIG_USB4 is not set
#
# Android
#
# end of Android
# CONFIG_DAX is not set
# CONFIG_NVMEM is not set
#
# HW tracing support
#
# CONFIG_STM is not set
# CONFIG_INTEL_TH is not set
# end of HW tracing support
# CONFIG_FPGA is not set
# CONFIG_SIOX is not set
# CONFIG_SLIMBUS is not set
# CONFIG_INTERCONNECT is not set
# CONFIG_COUNTER is not set
# CONFIG_PECI is not set
# CONFIG_HTE is not set
# end of Device Drivers
#
# File systems
#
# CONFIG_VALIDATE_FS_PARSER is not set
CONFIG_FS_IOMAP=y
# CONFIG_EXT2_FS is not set
# CONFIG_EXT4_FS is not set
# CONFIG_JFS_FS is not set
# CONFIG_XFS_FS is not set
# CONFIG_GFS2_FS is not set
# CONFIG_BTRFS_FS is not set
# CONFIG_NILFS2_FS is not set
# CONFIG_F2FS_FS is not set
CONFIG_EXPORTFS=y
# CONFIG_EXPORTFS_BLOCK_OPS is not set
CONFIG_FILE_LOCKING=y
# CONFIG_FS_ENCRYPTION is not set
# CONFIG_FS_VERITY is not set
# CONFIG_DNOTIFY is not set
# CONFIG_INOTIFY_USER is not set
# CONFIG_FANOTIFY is not set
# CONFIG_QUOTA is not set
# CONFIG_AUTOFS_FS is not set
# CONFIG_FUSE_FS is not set
# CONFIG_OVERLAY_FS is not set
#
# Caches
#
# end of Caches
#
# CD-ROM/DVD Filesystems
#
# CONFIG_ISO9660_FS is not set
# CONFIG_UDF_FS is not set
# end of CD-ROM/DVD Filesystems
#
# DOS/FAT/EXFAT/NT Filesystems
#
# CONFIG_MSDOS_FS is not set
# CONFIG_VFAT_FS is not set
# CONFIG_EXFAT_FS is not set
# CONFIG_NTFS3_FS is not set
# CONFIG_NTFS_FS is not set
# end of DOS/FAT/EXFAT/NT Filesystems
#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
# CONFIG_PROC_KCORE is not set
CONFIG_PROC_SYSCTL=y
CONFIG_PROC_PAGE_MONITOR=y
# CONFIG_PROC_CHILDREN is not set
CONFIG_KERNFS=y
CONFIG_SYSFS=y
# CONFIG_TMPFS is not set
# CONFIG_CONFIGFS_FS is not set
# end of Pseudo filesystems
# CONFIG_MISC_FILESYSTEMS is not set
# CONFIG_NLS is not set
# CONFIG_UNICODE is not set
CONFIG_IO_WQ=y
# end of File systems
#
# Security options
#
# CONFIG_KEYS is not set
# CONFIG_SECURITY_DMESG_RESTRICT is not set
CONFIG_PROC_MEM_ALWAYS_FORCE=y
# CONFIG_PROC_MEM_FORCE_PTRACE is not set
# CONFIG_PROC_MEM_NO_FORCE is not set
# CONFIG_SECURITY is not set
# CONFIG_SECURITYFS is not set
# CONFIG_STATIC_USERMODEHELPER is not set
CONFIG_DEFAULT_SECURITY_DAC=y
#
# Kernel hardening options
#
#
# Memory initialization
#
CONFIG_CC_HAS_AUTO_VAR_INIT_PATTERN=y
CONFIG_CC_HAS_AUTO_VAR_INIT_ZERO_BARE=y
CONFIG_CC_HAS_AUTO_VAR_INIT_ZERO=y
# CONFIG_INIT_STACK_NONE is not set
# CONFIG_INIT_STACK_ALL_PATTERN is not set
CONFIG_INIT_STACK_ALL_ZERO=y
# CONFIG_INIT_ON_ALLOC_DEFAULT_ON is not set
# CONFIG_INIT_ON_FREE_DEFAULT_ON is not set
CONFIG_CC_HAS_ZERO_CALL_USED_REGS=y
# CONFIG_ZERO_CALL_USED_REGS is not set
# end of Memory initialization
#
# Bounds checking
#
# CONFIG_HARDENED_USERCOPY is not set
# end of Bounds checking
#
# Hardening of kernel data structures
#
# CONFIG_LIST_HARDENED is not set
# CONFIG_BUG_ON_DATA_CORRUPTION is not set
# end of Hardening of kernel data structures
CONFIG_RANDSTRUCT_NONE=y
# end of Kernel hardening options
# end of Security options
# CONFIG_CRYPTO is not set
#
# Library routines
#
# CONFIG_PACKING is not set
CONFIG_BITREVERSE=y
CONFIG_GENERIC_STRNCPY_FROM_USER=y
CONFIG_GENERIC_STRNLEN_USER=y
# CONFIG_CORDIC is not set
# CONFIG_PRIME_NUMBERS is not set
CONFIG_ARCH_USE_CMPXCHG_LOCKREF=y
CONFIG_CRC32=y
CONFIG_CRC_OPTIMIZATIONS=y
#
# Crypto library routines
#
CONFIG_CRYPTO_LIB_POLY1305_RSIZE=1
# end of Crypto library routines
# CONFIG_RANDOM32_SELFTEST is not set
# CONFIG_XZ_DEC is not set
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT=y
CONFIG_HAS_IOPORT_MAP=y
CONFIG_HAS_DMA=y
CONFIG_DMA_OPS_HELPERS=y
CONFIG_NEED_SG_DMA_LENGTH=y
CONFIG_NEED_DMA_MAP_STATE=y
CONFIG_ARCH_DMA_ADDR_T_64BIT=y
CONFIG_DMA_NEED_SYNC=y
# CONFIG_DMA_API_DEBUG is not set
CONFIG_FORCE_NR_CPUS=y
# CONFIG_IRQ_POLL is not set
CONFIG_ARCH_NO_SG_CHAIN=y
CONFIG_SBITMAP=y
# CONFIG_LWQ_TEST is not set
# end of Library routines
#
# Kernel hacking
#
#
# printk and dmesg options
#
# CONFIG_PRINTK_TIME is not set
# CONFIG_PRINTK_CALLER is not set
# CONFIG_STACKTRACE_BUILD_ID is not set
CONFIG_CONSOLE_LOGLEVEL_DEFAULT=7
CONFIG_CONSOLE_LOGLEVEL_QUIET=4
CONFIG_MESSAGE_LOGLEVEL_DEFAULT=4
# CONFIG_DYNAMIC_DEBUG is not set
# CONFIG_DYNAMIC_DEBUG_CORE is not set
# CONFIG_SYMBOLIC_ERRNAME is not set
# end of printk and dmesg options
# CONFIG_DEBUG_KERNEL is not set
#
# Compile-time checks and compiler options
#
CONFIG_AS_HAS_NON_CONST_ULEB128=y
CONFIG_FRAME_WARN=2048
# CONFIG_STRIP_ASM_SYMS is not set
# CONFIG_HEADERS_INSTALL is not set
CONFIG_DEBUG_SECTION_MISMATCH=y
CONFIG_SECTION_MISMATCH_WARN_ONLY=y
# end of Compile-time checks and compiler options
#
# Generic Kernel Debugging Instruments
#
# CONFIG_MAGIC_SYSRQ is not set
# CONFIG_DEBUG_FS is not set
CONFIG_HAVE_KCSAN_COMPILER=y
# end of Generic Kernel Debugging Instruments
#
# Networking Debugging
#
# end of Networking Debugging
#
# Memory Debugging
#
# CONFIG_PAGE_EXTENSION is not set
CONFIG_SLUB_DEBUG=y
# CONFIG_SLUB_DEBUG_ON is not set
# CONFIG_PAGE_POISONING is not set
CONFIG_DEBUG_MEMORY_INIT=y
# CONFIG_MEM_ALLOC_PROFILING is not set
CONFIG_CC_HAS_WORKING_NOSANITIZE_ADDRESS=y
# end of Memory Debugging
#
# Debug Oops, Lockups and Hangs
#
# CONFIG_PANIC_ON_OOPS is not set
CONFIG_PANIC_TIMEOUT=0
# end of Debug Oops, Lockups and Hangs
#
# Scheduler Debugging
#
# CONFIG_SCHEDSTATS is not set
# end of Scheduler Debugging
#
# Lock Debugging (spinlocks, mutexes, etc...)
#
# CONFIG_WW_MUTEX_SELFTEST is not set
# end of Lock Debugging (spinlocks, mutexes, etc...)
# CONFIG_DEBUG_IRQFLAGS is not set
#
# Debug kernel data structures
#
# end of Debug kernel data structures
#
# RCU Debugging
#
# end of RCU Debugging
# CONFIG_SAMPLES is not set
#
# alpha Debugging
#
CONFIG_EARLY_PRINTK=y
# CONFIG_ALPHA_LEGACY_START_ADDRESS is not set
CONFIG_MATHEMU=y
# end of alpha Debugging
#
# Kernel Testing and Coverage
#
# CONFIG_KUNIT is not set
# CONFIG_RUNTIME_TESTING_MENU is not set
# end of Kernel Testing and Coverage
#
# Rust hacking
#
# end of Rust hacking
# end of Kernel hacking
^ permalink raw reply
* [PATCH] net: rose: use pskb_may_pull() in CLEAR_REQUEST length check
From: Ashutosh Desai @ 2026-04-20 1:57 UTC (permalink / raw)
To: netdev
Cc: linux-hams, davem, edumazet, kuba, pabeni, horms, linux-kernel,
Ashutosh Desai
Commit 2835750dd647 ("net: rose: reject truncated CLEAR_REQUEST frames
in state machines") guards against short CLEAR_REQUEST frames using a
plain skb->len comparison. Use pskb_may_pull() instead, which both
enforces the length requirement and ensures the bytes are in the linear
part of the skb, making the subsequent accesses to skb->data[3] and
skb->data[4] safe for non-linear buffers.
Suggested-by: Simon Horman <horms@kernel.org>
Signed-off-by: Ashutosh Desai <ashutoshdesai993@gmail.com>
---
net/rose/rose_in.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/rose/rose_in.c b/net/rose/rose_in.c
index ca4f217ef3d3..48183363d3f9 100644
--- a/net/rose/rose_in.c
+++ b/net/rose/rose_in.c
@@ -274,7 +274,7 @@ int rose_process_rx_frame(struct sock *sk, struct sk_buff *skb)
* ROSE_CLEAR_REQUEST carries cause and diagnostic in bytes 3..4.
* Reject a malformed frame that is too short to contain them.
*/
- if (frametype == ROSE_CLEAR_REQUEST && skb->len < 5)
+ if (frametype == ROSE_CLEAR_REQUEST && !pskb_may_pull(skb, 5))
return 0;
switch (rose->state) {
--
2.34.1
^ permalink raw reply related
* Re: [PATCH v3 net] rose: fix OOB reads on short CLEAR REQUEST frames
From: Ashutosh Desai @ 2026-04-20 2:01 UTC (permalink / raw)
To: horms; +Cc: netdev, Ashutosh Desai
In-Reply-To: <20260417120243.GB31784@horms.kernel.org>
On Fri, Apr 17, 2026 at 01:02:43PM +0100, Simon Horman wrote:
> Unfortunately this conflicts with a recent commit...
> So perhaps you could make an incremental change to add that.
Thanks for the review. I've sent an incremental patch to convert the
skb->len check in 2835750dd647 to pskb_may_pull():
https://lore.kernel.org/netdev/20260420015723.462479-1-ashutoshdesai993@gmail.com/
^ permalink raw reply
* [RFC Patch net-next v1 0/9] r8169: add RSS support for RTL8127
From: javen @ 2026-04-20 2:19 UTC (permalink / raw)
To: hkallweit1, nic_swsd, andrew+netdev, davem, edumazet, kuba,
pabeni, horms
Cc: netdev, linux-kernel, Javen Xu
From: Javen Xu <javen_xu@realsil.com.cn>
This series patch adds RSS support for RTL8127 in the r8169 driver.
Currently, without RSS support, a single CPU core handles all incoming
traffic. Under heavy loads, this single core becomes a bottleneck, causing
high softirq usage and leading to unstable and degraded network throughput.
As a result, we add rss support for RTL8127. This RFC patch is just for
discussing. And we do some experiments on AMD platform. Below is the
result.
Platform: AMD Ryzen Embedded R2514 with Radeon Graphics(4 Cores/8 Threads)
Arch: x86_64
Test command:
Server: iperf3 -s
Client: iperf3 -c 192.168.2.1 -P 20 -t 3600
Monitor: mpstat -P ALL 1
Before this patch (Without RSS):
Throughput: Unstable, fluctuating between 3.76 Gbits/sec and
8.2 Gbits/sec.
CPU Usage: A single CPU core is fully occupied with softirq reaching
up to 96%.
After this patch (With RSS enabled):
Throughput: Stable at 9.42 Gbits/sec.
CPU Usage: The traffic load is evenly distributed across multiple CPU
cores. The maximum softirq on a single core dropped to 63%.
Patch summary:
Patch 1: Adds necessary macro and register definitions for RSS.
Patch 2-4: Support NAPI and multi RX/TX queues.
Patch 5-6: Support MSI-X and enables it specifically for RTL8127.
Patch 7: Enables RSS for RTL8127.
Patch 8-9: Adds ethtool support to configure the number of RX queues.
Javen Xu (9):
r8169: add some register definitions
r8169: add napi and irq support
r8169: add support for multi tx queues
r8169: add support for multi rx queues
r8169: add support for msix
r8169: enable msix for RTL8127
r8169: add support and enable rss
r8169: move struct ethtool_ops
r8169: add support for ethtool
drivers/net/ethernet/realtek/r8169_main.c | 1437 ++++++++++++++++++---
1 file changed, 1238 insertions(+), 199 deletions(-)
--
2.43.0
^ permalink raw reply
* [RFC Patch net-next v1 1/9] r8169: add some register definitions
From: javen @ 2026-04-20 2:19 UTC (permalink / raw)
To: hkallweit1, nic_swsd, andrew+netdev, davem, edumazet, kuba,
pabeni, horms
Cc: netdev, linux-kernel, Javen Xu
In-Reply-To: <20260420021957.1756-1-javen_xu@realsil.com.cn>
From: Javen Xu <javen_xu@realsil.com.cn>
To support rss, this patch adds some macro definitions and register
definitions.
Signed-off-by: Javen Xu <javen_xu@realsil.com.cn>
---
drivers/net/ethernet/realtek/r8169_main.c | 75 +++++++++++++++++++++++
1 file changed, 75 insertions(+)
diff --git a/drivers/net/ethernet/realtek/r8169_main.c b/drivers/net/ethernet/realtek/r8169_main.c
index 791277e750ba..0fbec27e4a0d 100644
--- a/drivers/net/ethernet/realtek/r8169_main.c
+++ b/drivers/net/ethernet/realtek/r8169_main.c
@@ -77,6 +77,23 @@
#define R8169_RX_RING_BYTES (NUM_RX_DESC * sizeof(struct RxDesc))
#define R8169_TX_STOP_THRS (MAX_SKB_FRAGS + 1)
#define R8169_TX_START_THRS (2 * R8169_TX_STOP_THRS)
+#define R8169_MAX_RX_QUEUES 8
+#define R8169_MAX_TX_QUEUES 1
+#define R8169_MAX_MSIX_VEC 32
+#define R8127_MAX_TX_QUEUES 1
+#define R8127_MAX_RX_QUEUES 8
+#define R8127_MAX_IRQ 32
+#define R8127_MIN_IRQ 30
+#define RTL8127_RSS_KEY_SIZE 40
+#define RSS_CPU_NUM_OFFSET 16
+#define RSS_MASK_BITS_OFFSET 8
+#define RTL8127_MAX_INDIRECTION_TABLE_ENTRIES 128
+#define RXS_8125B_RSS_UDP_V4 BIT(27)
+#define RXS_8125_RSS_IPV4_V4 BIT(28)
+#define RXS_8125_RSS_IPV6_V4 BIT(29)
+#define RXS_8125_RSS_TCP_V4 BIT(30)
+#define RTL8127_RXS_RSS_L3_TYPE_MASK_V4 (RXS_8125_RSS_IPV4_V4 | RXS_8125_RSS_IPV6_V4)
+#define RTL8127_RXS_RSS_L4_TYPE_MASK_V4 (RXS_8125_RSS_TCP_V4 | RXS_8125B_RSS_UDP_V4)
#define OCP_STD_PHY_BASE 0xa400
@@ -435,6 +452,8 @@ enum rtl8125_registers {
#define INT_CFG0_CLKREQEN BIT(3)
IntrMask_8125 = 0x38,
IntrStatus_8125 = 0x3c,
+ IntrMask1_8125 = 0x800,
+ IntrStatus1_8125 = 0x802,
INT_CFG1_8125 = 0x7a,
LEDSEL2 = 0x84,
LEDSEL1 = 0x86,
@@ -444,6 +463,36 @@ enum rtl8125_registers {
RSS_CTRL_8125 = 0x4500,
Q_NUM_CTRL_8125 = 0x4800,
EEE_TXIDLE_TIMER_8125 = 0x6048,
+ TNPDS_Q1_LOW = 0x2100,
+ RDSAR_Q1_LOW = 0x4000,
+ IMR_V2_SET_REG_8125 = 0x0d0c,
+ IMR_V2_CLEAR_REG_8125 = 0x0d00,
+ IMR_V4_L2_CLEAR_REG_8125 = 0x0d10,
+ ISR_V2_8125 = 0x0d04,
+ ISR_V4_L2_8125 = 0x0d14,
+};
+
+enum rtl8127_msix_id {
+ MSIX_ID_V4_LINKCHG = 29,
+};
+
+enum rtl8127_rss_register_content {
+ RSS_CTRL_TCP_IPV4_SUPP = (1 << 0),
+ RSS_CTRL_IPV4_SUPP = (1 << 1),
+ RSS_CTRL_TCP_IPV6_SUPP = (1 << 2),
+ RSS_CTRL_IPV6_SUPP = (1 << 3),
+ RSS_CTRL_IPV6_EXT_SUPP = (1 << 4),
+ RSS_CTRL_TCP_IPV6_EXT_SUPP = (1 << 5),
+ RSS_CTRL_UDP_IPV4_SUPP = (1 << 11),
+ RSS_CTRL_UDP_IPV6_SUPP = (1 << 12),
+ RSS_CTRL_UDP_IPV6_EXT_SUPP = (1 << 13),
+ RSS_INDIRECTION_TBL_8125_V2 = 0x4700,
+ RSS_KEY_8125 = 0x4600,
+};
+
+enum rtl8127_rss_flag {
+ RTL_8125_RSS_FLAG_HASH_UDP_IPV4 = (1 << 0),
+ RTL_8125_RSS_FLAG_HASH_UDP_IPV6 = (1 << 1),
};
#define LEDSEL_MASK_8125 0x23f
@@ -474,6 +523,10 @@ enum rtl_register_content {
RxRUNT = (1 << 20),
RxCRC = (1 << 19),
+ RxRES_RSS = (1 << 22),
+ RxRUNT_RSS = (1 << 21),
+ RxCRC_RSS = (1 << 20),
+
/* ChipCmdBits */
StopReq = 0x80,
CmdReset = 0x10,
@@ -576,6 +629,9 @@ enum rtl_register_content {
/* magic enable v2 */
MagicPacket_v2 = (1 << 16), /* Wake up when receives a Magic Packet */
+ ISRIMR_V6_LINKCHG = (1 << 29),
+ ISRIMR_V6_TOK_Q0 = (1 << 8),
+ ISRIMR_V6_ROK_Q0 = (1 << 0),
};
enum rtl_desc_bit {
@@ -633,6 +689,11 @@ enum rtl_rx_desc_bit {
#define RxProtoIP (PID1 | PID0)
#define RxProtoMask RxProtoIP
+ RxUDPT_v4 = (1 << 19),
+ RxTCPT_v4 = (1 << 18),
+ RxUDPF_v4 = (1 << 16), /* UDP/IP checksum failed */
+ RxTCPF_v4 = (1 << 15), /* TCP/IP checksum failed */
+
IPFail = (1 << 16), /* IP checksum failed */
UDPFail = (1 << 15), /* UDP/IP checksum failed */
TCPFail = (1 << 14), /* TCP/IP checksum failed */
@@ -659,6 +720,11 @@ struct RxDesc {
__le64 addr;
};
+enum features {
+ RTL_FEATURE_MSI = (1 << 1),
+ RTL_FEATURE_MSIX = (1 << 2),
+};
+
struct ring_info {
struct sk_buff *skb;
u32 len;
@@ -728,6 +794,13 @@ enum rtl_dash_type {
RTL_DASH_25_BP,
};
+enum rx_desc_ring_type {
+ RX_DESC_RING_TYPE_UNKNOWN = 0,
+ RX_DESC_RING_TYPE_DEAFULT,
+ RX_DESC_RING_TYPE_RSS,
+ RX_DESC_RING_TYPE_MAX
+};
+
struct rtl8169_private {
void __iomem *mmio_addr; /* memory map physical address */
struct pci_dev *pci_dev;
@@ -763,6 +836,8 @@ struct rtl8169_private {
unsigned aspm_manageable:1;
unsigned dash_enabled:1;
bool sfp_mode:1;
+ bool rss_support:1;
+ bool rss_enable:1;
dma_addr_t counters_phys_addr;
struct rtl8169_counters *counters;
struct rtl8169_tc_offsets tc_offset;
--
2.43.0
^ permalink raw reply related
* [RFC Patch net-next v1 5/9] r8169: add support for msix
From: javen @ 2026-04-20 2:19 UTC (permalink / raw)
To: hkallweit1, nic_swsd, andrew+netdev, davem, edumazet, kuba,
pabeni, horms
Cc: netdev, linux-kernel, Javen Xu
In-Reply-To: <20260420021957.1756-1-javen_xu@realsil.com.cn>
From: Javen Xu <javen_xu@realsil.com.cn>
This patch add support for msix. But we still use MSI here. And we force
nvecs to 1. We will modify it in rss patch.
Signed-off-by: Javen Xu <javen_xu@realsil.com.cn>
---
drivers/net/ethernet/realtek/r8169_main.c | 162 ++++++++++++++++++++--
1 file changed, 151 insertions(+), 11 deletions(-)
diff --git a/drivers/net/ethernet/realtek/r8169_main.c b/drivers/net/ethernet/realtek/r8169_main.c
index 52e690eba644..7d493342ab4b 100644
--- a/drivers/net/ethernet/realtek/r8169_main.c
+++ b/drivers/net/ethernet/realtek/r8169_main.c
@@ -1764,26 +1764,40 @@ static u32 rtl_get_events(struct rtl8169_private *tp)
static void rtl_ack_events(struct rtl8169_private *tp, u32 bits)
{
- if (rtl_is_8125(tp))
+ if (rtl_is_8125(tp)) {
RTL_W32(tp, IntrStatus_8125, bits);
- else
+ if (tp->features & RTL_FEATURE_MSIX) {
+ RTL_W32(tp, ISR_V2_8125, 0xffffffff);
+ RTL_W32(tp, ISR_V4_L2_8125, 0xffffffff);
+ }
+ } else {
RTL_W16(tp, IntrStatus, bits);
+ }
}
static void rtl_irq_disable(struct rtl8169_private *tp)
{
- if (rtl_is_8125(tp))
+ if (rtl_is_8125(tp)) {
RTL_W32(tp, IntrMask_8125, 0);
- else
+ if (tp->features & RTL_FEATURE_MSIX) {
+ RTL_W32(tp, IMR_V2_CLEAR_REG_8125, 0xffffffff);
+ RTL_W32(tp, IMR_V4_L2_CLEAR_REG_8125, 0xffffffff);
+ }
+ } else {
RTL_W16(tp, IntrMask, 0);
+ }
}
static void rtl_irq_enable(struct rtl8169_private *tp)
{
- if (rtl_is_8125(tp))
- RTL_W32(tp, IntrMask_8125, tp->irq_mask);
- else
+ if (rtl_is_8125(tp)) {
+ if (tp->features & RTL_FEATURE_MSIX)
+ RTL_W32(tp, IMR_V2_SET_REG_8125, tp->irq_mask);
+ else
+ RTL_W32(tp, IntrMask_8125, tp->irq_mask);
+ } else {
RTL_W16(tp, IntrMask, tp->irq_mask);
+ }
}
static void rtl8169_irq_mask_and_ack(struct rtl8169_private *tp)
@@ -2894,6 +2908,10 @@ static void rtl_software_parameter_initialize(struct rtl8169_private *tp)
tp->InitRxDescType = RX_DESC_RING_TYPE_DEAFULT;
tp->HwCurrIsrVer = tp->HwSuppIsrVer;
+ /* This just force nvecs, and will be remove in the following patch*/
+ tp->min_irq_nvecs = 1;
+ tp->max_irq_nvecs = 1;
+
rtl_setup_mqs_reg(tp);
rtl_set_ring_size(tp, NUM_RX_DESC, NUM_TX_DESC);
}
@@ -5321,6 +5339,44 @@ static void rtl8169_free_irq(struct rtl8169_private *tp)
}
}
+static void rtl8169_disable_hw_interrupt_msix(struct rtl8169_private *tp, int message_id)
+{
+ RTL_W32(tp, IMR_V2_CLEAR_REG_8125, BIT(message_id));
+}
+
+static void rtl8169_clear_hw_isr(struct rtl8169_private *tp, int message_id)
+{
+ RTL_W32(tp, ISR_V2_8125, BIT(message_id));
+}
+
+static void rtl8169_enable_hw_interrupt_msix(struct rtl8169_private *tp, int message_id)
+{
+ RTL_W32(tp, IMR_V2_SET_REG_8125, BIT(message_id));
+}
+
+static irqreturn_t rtl8169_interrupt_msix(int irq, void *dev_instance)
+{
+ struct rtl8169_napi *napi = dev_instance;
+ struct rtl8169_private *tp = napi->priv;
+ int message_id = napi->index;
+
+ rtl8169_disable_hw_interrupt_msix(tp, message_id);
+
+ rtl8169_clear_hw_isr(tp, message_id);
+
+ if (message_id == MSIX_ID_V4_LINKCHG) {
+ phy_mac_interrupt(tp->phydev);
+ rtl8169_enable_hw_interrupt_msix(tp, message_id);
+ return IRQ_HANDLED;
+ }
+
+ tp->recheck_desc_ownbit = true;
+
+ napi_schedule(&napi->napi);
+
+ return IRQ_HANDLED;
+}
+
static int rtl8169_request_irq(struct rtl8169_private *tp)
{
struct net_device *dev = tp->dev;
@@ -5331,10 +5387,14 @@ static int rtl8169_request_irq(struct rtl8169_private *tp)
for (int i = 0; i < tp->irq_nvecs; i++) {
irq = &tp->irq_tbl[i];
+ if (tp->features & RTL_FEATURE_MSIX && tp->HwCurrIsrVer > 1)
+ irq->handler = rtl8169_interrupt_msix;
+ else
+ irq->handler = rtl8169_interrupt;
napi = &tp->r8169napi[i];
snprintf(irq->name, len, "%s-%d", dev->name, i);
- rc = pci_request_irq(tp->pci_dev, i, rtl8169_interrupt, NULL, napi, irq->name);
+ rc = pci_request_irq(tp->pci_dev, i, irq->handler, NULL, napi, irq->name);
if (rc)
break;
@@ -5786,10 +5846,18 @@ static const struct net_device_ops rtl_netdev_ops = {
static void rtl_set_irq_mask(struct rtl8169_private *tp)
{
- tp->irq_mask = RxOK | RxErr | TxOK | TxErr | LinkChg;
+ if (tp->features & RTL_FEATURE_MSIX) {
+ tp->irq_mask = ISRIMR_V6_LINKCHG;
+ for (int i = 0; i < tp->num_tx_rings; i++)
+ tp->irq_mask |= ISRIMR_V6_TOK_Q0 << i;
+ for (int i = 0; i < tp->num_rx_rings; i++)
+ tp->irq_mask |= ISRIMR_V6_ROK_Q0 << i;
+ } else {
+ tp->irq_mask = RxOK | RxErr | TxOK | TxErr | LinkChg;
- if (tp->mac_version <= RTL_GIGA_MAC_VER_06)
- tp->irq_mask |= SYSErr | RxFIFOOver;
+ if (tp->mac_version <= RTL_GIGA_MAC_VER_06)
+ tp->irq_mask |= SYSErr | RxFIFOOver;
+ }
}
static int rtl_alloc_irq(struct rtl8169_private *tp)
@@ -5817,6 +5885,18 @@ static int rtl_alloc_irq(struct rtl8169_private *tp)
if (nvecs < 0)
nvecs = pci_alloc_irq_vectors(pdev, 1, 1, PCI_IRQ_ALL_TYPES);
+ tp->features &= ~(RTL_FEATURE_MSIX | RTL_FEATURE_MSI);
+
+ if (nvecs > 0) {
+ tp->irq_nvecs = nvecs;
+ tp->irq = pci_irq_vector(pdev, 0);
+ if (nvecs > 1)
+ tp->features |= RTL_FEATURE_MSIX;
+ else if (pci_dev_msi_enabled(pdev))
+ tp->features |= RTL_FEATURE_MSI;
+ return 0;
+ }
+
tp->irq = pdev->irq;
tp->irq_nvecs = 1;
@@ -6087,6 +6167,52 @@ static bool rtl_aspm_is_safe(struct rtl8169_private *tp)
return false;
}
+static int rtl8169_poll_msix_rx(struct napi_struct *napi, int budget)
+{
+ struct rtl8169_napi *r8169_napi = container_of(napi, struct rtl8169_napi, napi);
+ struct rtl8169_private *tp = r8169_napi->priv;
+ struct net_device *dev = tp->dev;
+ const int message_id = r8169_napi->index;
+ int work_done = 0;
+
+ if (message_id < tp->num_rx_rings)
+ work_done += rtl_rx(dev, tp, &tp->rx_ring[message_id], budget);
+
+ if (work_done < budget && napi_complete_done(napi, work_done))
+ rtl8169_enable_hw_interrupt_msix(tp, message_id);
+
+ return work_done;
+}
+
+static int rtl8169_poll_msix_tx(struct napi_struct *napi, int budget)
+{
+ struct rtl8169_napi *r8169_napi = container_of(napi, struct rtl8169_napi, napi);
+ struct rtl8169_private *tp = r8169_napi->priv;
+ struct net_device *dev = tp->dev;
+ unsigned int work_done = 0;
+ const int message_id = r8169_napi->index;
+ int tx_ring_idx = message_id - 8;
+
+ if (tx_ring_idx >= 0 && tx_ring_idx < tp->num_tx_rings)
+ work_done += rtl_tx(dev, tp, &tp->tx_ring[tx_ring_idx], budget);
+
+ if (work_done < budget && napi_complete_done(napi, work_done))
+ rtl8169_enable_hw_interrupt_msix(tp, message_id);
+
+ return work_done;
+}
+
+static int rtl8169_poll_msix_other(struct napi_struct *napi, int budget)
+{
+ struct rtl8169_napi *r8169_napi = container_of(napi, struct rtl8169_napi, napi);
+ struct rtl8169_private *tp = r8169_napi->priv;
+ const int message_id = r8169_napi->index;
+
+ napi_complete_done(napi, budget);
+ rtl8169_enable_hw_interrupt_msix(tp, message_id);
+
+ return 1;
+}
static void r8169_init_napi(struct rtl8169_private *tp)
{
@@ -6095,6 +6221,20 @@ static void r8169_init_napi(struct rtl8169_private *tp)
int (*poll)(struct napi_struct *napi, int budget);
poll = rtl8169_poll;
+ if (tp->features & RTL_FEATURE_MSIX) {
+ switch (tp->HwCurrIsrVer) {
+ case 6:
+ if (i < R8127_MAX_RX_QUEUES)
+ poll = rtl8169_poll_msix_rx;
+ else if (i > 7 && i < 16)
+ poll = rtl8169_poll_msix_tx;
+ else
+ poll = rtl8169_poll_msix_other;
+ break;
+ default:
+ break;
+ }
+ }
netif_napi_add(tp->dev, &r8169napi->napi, poll);
r8169napi->priv = tp;
r8169napi->index = i;
--
2.43.0
^ permalink raw reply related
* [RFC Patch net-next v1 9/9] r8169: add support for ethtool
From: javen @ 2026-04-20 2:19 UTC (permalink / raw)
To: hkallweit1, nic_swsd, andrew+netdev, davem, edumazet, kuba,
pabeni, horms
Cc: netdev, linux-kernel, Javen Xu
In-Reply-To: <20260420021957.1756-1-javen_xu@realsil.com.cn>
From: Javen Xu <javen_xu@realsil.com.cn>
This patch add support for changing rx queues by ethtool. We can set rx
1, 2, 4, 8 by ethtool -L eth1 rx num.
Signed-off-by: Javen Xu <javen_xu@realsil.com.cn>
---
drivers/net/ethernet/realtek/r8169_main.c | 68 +++++++++++++++++++++++
1 file changed, 68 insertions(+)
diff --git a/drivers/net/ethernet/realtek/r8169_main.c b/drivers/net/ethernet/realtek/r8169_main.c
index 6b574fc336d6..57087abe7d88 100644
--- a/drivers/net/ethernet/realtek/r8169_main.c
+++ b/drivers/net/ethernet/realtek/r8169_main.c
@@ -6518,6 +6518,72 @@ static void r8169_init_napi(struct rtl8169_private *tp)
}
}
+static void rtl8169_get_channels(struct net_device *dev,
+ struct ethtool_channels *ch)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+
+ ch->max_rx = tp->HwSuppNumRxQueues ? tp->HwSuppNumRxQueues : 1;
+ ch->max_tx = tp->HwSuppNumTxQueues ? tp->HwSuppNumTxQueues : 1;
+ ch->max_other = 0;
+ ch->max_combined = 0;
+
+ ch->rx_count = tp->num_rx_rings;
+ ch->tx_count = tp->num_tx_rings;
+ ch->other_count = 0;
+ ch->combined_count = 0;
+}
+
+static int rtl8169_set_channels(struct net_device *dev,
+ struct ethtool_channels *ch)
+{
+ struct rtl8169_private *tp = netdev_priv(dev);
+ bool if_running = netif_running(dev);
+ int i;
+
+ if (!tp->rss_support && (ch->rx_count > 1 || ch->tx_count > 1)) {
+ netdev_warn(dev, "This chip does not support multiple channels/RSS.\n");
+ return -EOPNOTSUPP;
+ }
+
+ if (ch->rx_count == 0 || ch->tx_count == 0)
+ return -EINVAL;
+ if (ch->rx_count > tp->HwSuppNumRxQueues ||
+ ch->tx_count > tp->HwSuppNumTxQueues)
+ return -EINVAL;
+ if (ch->other_count || ch->combined_count)
+ return -EINVAL;
+
+ if (ch->rx_count == tp->num_rx_rings &&
+ ch->tx_count == tp->num_tx_rings)
+ return 0;
+
+ if (if_running)
+ rtl8169_close(dev);
+
+ tp->num_rx_rings = ch->rx_count;
+ tp->num_tx_rings = ch->tx_count;
+
+ tp->rss_enable = (tp->num_rx_rings > 1 && tp->rss_support);
+
+ for (i = 0; i < tp->HwSuppIndirTblEntries; i++) {
+ if (tp->rss_enable)
+ tp->rss_indir_tbl[i] = ethtool_rxfh_indir_default(i, tp->num_rx_rings);
+ else
+ tp->rss_indir_tbl[i] = 0;
+ }
+
+ if (tp->rss_enable)
+ tp->InitRxDescType = RX_DESC_RING_TYPE_RSS;
+ else
+ tp->InitRxDescType = RX_DESC_RING_TYPE_DEAFULT;
+
+ if (if_running)
+ return rtl_open(dev);
+
+ return 0;
+}
+
static const struct ethtool_ops rtl8169_ethtool_ops = {
.supported_coalesce_params = ETHTOOL_COALESCE_USECS |
ETHTOOL_COALESCE_MAX_FRAMES,
@@ -6536,6 +6602,8 @@ static const struct ethtool_ops rtl8169_ethtool_ops = {
.nway_reset = phy_ethtool_nway_reset,
.get_eee = rtl8169_get_eee,
.set_eee = rtl8169_set_eee,
+ .get_channels = rtl8169_get_channels,
+ .set_channels = rtl8169_set_channels,
.get_link_ksettings = phy_ethtool_get_link_ksettings,
.set_link_ksettings = rtl8169_set_link_ksettings,
.get_ringparam = rtl8169_get_ringparam,
--
2.43.0
^ permalink raw reply related
* [RFC Patch net-next v1 8/9] r8169: move struct ethtool_ops
From: javen @ 2026-04-20 2:19 UTC (permalink / raw)
To: hkallweit1, nic_swsd, andrew+netdev, davem, edumazet, kuba,
pabeni, horms
Cc: netdev, linux-kernel, Javen Xu
In-Reply-To: <20260420021957.1756-1-javen_xu@realsil.com.cn>
From: Javen Xu <javen_xu@realsil.com.cn>
This patch move struct ethtool_ops, no changes. Prepare for next patch.
Signed-off-by: Javen Xu <javen_xu@realsil.com.cn>
---
drivers/net/ethernet/realtek/r8169_main.c | 56 +++++++++++------------
1 file changed, 28 insertions(+), 28 deletions(-)
diff --git a/drivers/net/ethernet/realtek/r8169_main.c b/drivers/net/ethernet/realtek/r8169_main.c
index b3f15e6fd5e9..6b574fc336d6 100644
--- a/drivers/net/ethernet/realtek/r8169_main.c
+++ b/drivers/net/ethernet/realtek/r8169_main.c
@@ -2587,34 +2587,6 @@ static int rtl8169_set_link_ksettings(struct net_device *ndev,
return 0;
}
-static const struct ethtool_ops rtl8169_ethtool_ops = {
- .supported_coalesce_params = ETHTOOL_COALESCE_USECS |
- ETHTOOL_COALESCE_MAX_FRAMES,
- .get_drvinfo = rtl8169_get_drvinfo,
- .get_regs_len = rtl8169_get_regs_len,
- .get_link = ethtool_op_get_link,
- .get_coalesce = rtl_get_coalesce,
- .set_coalesce = rtl_set_coalesce,
- .get_regs = rtl8169_get_regs,
- .get_wol = rtl8169_get_wol,
- .set_wol = rtl8169_set_wol,
- .get_strings = rtl8169_get_strings,
- .get_sset_count = rtl8169_get_sset_count,
- .get_ethtool_stats = rtl8169_get_ethtool_stats,
- .get_ts_info = ethtool_op_get_ts_info,
- .nway_reset = phy_ethtool_nway_reset,
- .get_eee = rtl8169_get_eee,
- .set_eee = rtl8169_set_eee,
- .get_link_ksettings = phy_ethtool_get_link_ksettings,
- .set_link_ksettings = rtl8169_set_link_ksettings,
- .get_ringparam = rtl8169_get_ringparam,
- .get_pause_stats = rtl8169_get_pause_stats,
- .get_pauseparam = rtl8169_get_pauseparam,
- .set_pauseparam = rtl8169_set_pauseparam,
- .get_eth_mac_stats = rtl8169_get_eth_mac_stats,
- .get_eth_ctrl_stats = rtl8169_get_eth_ctrl_stats,
-};
-
static const struct rtl_chip_info *rtl8169_get_chip_version(u32 xid, bool gmii)
{
/* Chips combining a 1Gbps MAC with a 100Mbps PHY */
@@ -6546,6 +6518,34 @@ static void r8169_init_napi(struct rtl8169_private *tp)
}
}
+static const struct ethtool_ops rtl8169_ethtool_ops = {
+ .supported_coalesce_params = ETHTOOL_COALESCE_USECS |
+ ETHTOOL_COALESCE_MAX_FRAMES,
+ .get_drvinfo = rtl8169_get_drvinfo,
+ .get_regs_len = rtl8169_get_regs_len,
+ .get_link = ethtool_op_get_link,
+ .get_coalesce = rtl_get_coalesce,
+ .set_coalesce = rtl_set_coalesce,
+ .get_regs = rtl8169_get_regs,
+ .get_wol = rtl8169_get_wol,
+ .set_wol = rtl8169_set_wol,
+ .get_strings = rtl8169_get_strings,
+ .get_sset_count = rtl8169_get_sset_count,
+ .get_ethtool_stats = rtl8169_get_ethtool_stats,
+ .get_ts_info = ethtool_op_get_ts_info,
+ .nway_reset = phy_ethtool_nway_reset,
+ .get_eee = rtl8169_get_eee,
+ .set_eee = rtl8169_set_eee,
+ .get_link_ksettings = phy_ethtool_get_link_ksettings,
+ .set_link_ksettings = rtl8169_set_link_ksettings,
+ .get_ringparam = rtl8169_get_ringparam,
+ .get_pause_stats = rtl8169_get_pause_stats,
+ .get_pauseparam = rtl8169_get_pauseparam,
+ .set_pauseparam = rtl8169_set_pauseparam,
+ .get_eth_mac_stats = rtl8169_get_eth_mac_stats,
+ .get_eth_ctrl_stats = rtl8169_get_eth_ctrl_stats,
+};
+
static int rtl_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
{
const struct rtl_chip_info *chip;
--
2.43.0
^ permalink raw reply related
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