Forwarded: [PATCH] sync napi pointer during qreset

From: syzbot

Date: Sat Aug 08 2026 - 06:51:27 EST


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***

Subject: [PATCH] sync napi pointer during qreset
Author: subasris1210@xxxxxxxxx

#syz test: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git a59f57e2aa127c5354168d2ec4bac920df1be4f4

Signed-off-by: Subasri S <subasris1210@xxxxxxxxx>
---
drivers/net/netdevsim/netdev.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/drivers/net/netdevsim/netdev.c b/drivers/net/netdevsim/netdev.c
index 4e9d7e10b527..c18f9f540084 100644
--- a/drivers/net/netdevsim/netdev.c
+++ b/drivers/net/netdevsim/netdev.c
@@ -826,6 +826,8 @@ nsim_queue_start(struct net_device *dev, struct netdev_queue_config *qcfg,
}

ns->rq[idx] = qmem->rq;
+ netif_queue_set_napi(dev, idx, NETDEV_QUEUE_TYPE_RX,
+ &ns->rq[idx]->napi);
napi_enable_locked(&ns->rq[idx]->napi);

return 0;
@@ -838,6 +840,7 @@ static int nsim_queue_stop(struct net_device *dev, void *per_queue_mem, int idx)

netdev_assert_locked(dev);

+ netif_queue_set_napi(dev, idx, NETDEV_QUEUE_TYPE_RX, NULL);
napi_disable_locked(&ns->rq[idx]->napi);

if (ns->rq_reset_mode == 1) {
--
2.43.0