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>] [day] [month] [year] [list]
Message-ID: <20260123110616.416384-1-bigeasy@linutronix.de>
Date: Fri, 23 Jan 2026 12:06:16 +0100
From: Sebastian Andrzej Siewior <bigeasy@...utronix.de>
To: netdev@...r.kernel.org
Cc: Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
	Andrew Lunn <andrew+netdev@...n.ch>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>
Subject: [PATCH net-next] declance: Remove IRQF_ONESHOT

Passing IRQF_ONESHOT ensures that the interrupt source is masked until
the secondary (threaded) handler is done. If only a primary handler is
used then the flag makes no sense because the interrupt can not fire
(again) while its handler is running.
The flag also disallows force-threading of the primary handler and the
irq-core will warn about this.

Remove IRQF_ONESHOT to irqflags.

Cc: Andrew Lunn <andrew+netdev@...n.ch>
Cc: "David S. Miller" <davem@...emloft.net>
Cc: Eric Dumazet <edumazet@...gle.com>
Cc: Jakub Kicinski <kuba@...nel.org>
Cc: Paolo Abeni <pabeni@...hat.com>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@...utronix.de>
---

lance_dma_merr_int() does nothing but a printk() which means if it is a
level interrupt then once it fires it remains asserted and that printk()
takes over the machine.
I guess it never fires and is just left over debug.

 drivers/net/ethernet/amd/declance.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/amd/declance.c b/drivers/net/ethernet/amd/declance.c
index 8d05a0c5f2d5d..e6d56fcdc1ddd 100644
--- a/drivers/net/ethernet/amd/declance.c
+++ b/drivers/net/ethernet/amd/declance.c
@@ -813,7 +813,7 @@ static int lance_open(struct net_device *dev)
 	if (lp->dma_irq >= 0) {
 		unsigned long flags;
 
-		if (request_irq(lp->dma_irq, lance_dma_merr_int, IRQF_ONESHOT,
+		if (request_irq(lp->dma_irq, lance_dma_merr_int, 0,
 				"lance error", dev)) {
 			free_irq(dev->irq, dev);
 			printk("%s: Can't get DMA IRQ %d\n", dev->name,
-- 
2.51.0


Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ