netdev - [patchlet] r8169: fix napi_schedule_irqoff() called with irqs enabled warning

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:   Fri, 16 Oct 2020 13:26:20 +0200
From:   Mike Galbraith <efault@....de>
To:     netdev <netdev@...r.kernel.org>
Cc:     Realtek linux nic maintainers <nic_swsd@...ltek.com>,
        Heiner Kallweit <hkallweit1@...il.com>
Subject: [patchlet] r8169: fix napi_schedule_irqoff() called with irqs
 enabled warning


When the kernel is built with PREEMPT_RT or booted with threadirqs,
irqs are not disabled when rtl8169_interrupt() is called, inspiring
__raise_softirq_irqoff() to gripe.  Use plain napi_schedule().

Signed-off-by: Mike Galbraith <efault@....de>
---
 drivers/net/ethernet/realtek/r8169_main.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/net/ethernet/realtek/r8169_main.c
+++ b/drivers/net/ethernet/realtek/r8169_main.c
@@ -4573,7 +4573,7 @@ static irqreturn_t rtl8169_interrupt(int
 	}

 	rtl_irq_disable(tp);
-	napi_schedule_irqoff(&tp->napi);
+	napi_schedule(&tp->napi);
 out:
 	rtl_ack_events(tp, status);