* FAILED: patch "[PATCH] serial: lantiq: add missing interrupt ack" failed to apply to 4.19-stable tree
@ 2023-06-18 12:49 gregkh
2023-06-19 21:00 ` [PATCH 4.19.y] serial: lantiq: add missing interrupt ack Bernhard Seibold
2023-06-19 21:08 ` [PATCH 4.19.y v2] " Bernhard Seibold
0 siblings, 2 replies; 3+ messages in thread
From: gregkh @ 2023-06-18 12:49 UTC (permalink / raw)
To: mail, gregkh, ilpo.jarvinen, stable; +Cc: stable
The patch below does not apply to the 4.19-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable@vger.kernel.org>.
To reproduce the conflict and resubmit, you may use the following commands:
git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-4.19.y
git checkout FETCH_HEAD
git cherry-pick -x 306320034e8fbe7ee1cc4f5269c55658b4612048
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<stable@vger.kernel.org>' --in-reply-to '2023061831-detention-overtime-783b@gregkh' --subject-prefix 'PATCH 4.19.y' HEAD^..
Possible dependencies:
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From 306320034e8fbe7ee1cc4f5269c55658b4612048 Mon Sep 17 00:00:00 2001
From: Bernhard Seibold <mail@bernhard-seibold.de>
Date: Fri, 2 Jun 2023 15:30:29 +0200
Subject: [PATCH] serial: lantiq: add missing interrupt ack
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Currently, the error interrupt is never acknowledged, so once active it
will stay active indefinitely, causing the handler to be called in an
infinite loop.
Fixes: 2f0fc4159a6a ("SERIAL: Lantiq: Add driver for MIPS Lantiq SOCs.")
Cc: <stable@vger.kernel.org>
Signed-off-by: Bernhard Seibold <mail@bernhard-seibold.de>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Message-ID: <20230602133029.546-1-mail@bernhard-seibold.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/tty/serial/lantiq.c b/drivers/tty/serial/lantiq.c
index a58e9277dfad..f1387f1024db 100644
--- a/drivers/tty/serial/lantiq.c
+++ b/drivers/tty/serial/lantiq.c
@@ -250,6 +250,7 @@ lqasc_err_int(int irq, void *_port)
struct ltq_uart_port *ltq_port = to_ltq_uart_port(port);
spin_lock_irqsave(<q_port->lock, flags);
+ __raw_writel(ASC_IRNCR_EIR, port->membase + LTQ_ASC_IRNCR);
/* clear any pending interrupts */
asc_update_bits(0, ASCWHBSTATE_CLRPE | ASCWHBSTATE_CLRFE |
ASCWHBSTATE_CLRROE, port->membase + LTQ_ASC_WHBSTATE);
^ permalink raw reply related [flat|nested] 3+ messages in thread
* [PATCH 4.19.y] serial: lantiq: add missing interrupt ack
2023-06-18 12:49 FAILED: patch "[PATCH] serial: lantiq: add missing interrupt ack" failed to apply to 4.19-stable tree gregkh
@ 2023-06-19 21:00 ` Bernhard Seibold
2023-06-19 21:08 ` [PATCH 4.19.y v2] " Bernhard Seibold
1 sibling, 0 replies; 3+ messages in thread
From: Bernhard Seibold @ 2023-06-19 21:00 UTC (permalink / raw)
To: stable; +Cc: Bernhard Seibold, Ilpo Järvinen, Greg Kroah-Hartman
commit 306320034e8fbe7ee1cc4f5269c55658b4612048 upstream.
Currently, the error interrupt is never acknowledged, so once active it
will stay active indefinitely, causing the handler to be called in an
infinite loop.
Fixes: 2f0fc4159a6a ("SERIAL: Lantiq: Add driver for MIPS Lantiq SOCs.")
Cc: <stable@vger.kernel.org>
Signed-off-by: Bernhard Seibold <mail@bernhard-seibold.de>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Message-ID: <20230602133029.546-1-mail@bernhard-seibold.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/tty/serial/lantiq.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/tty/serial/lantiq.c b/drivers/tty/serial/lantiq.c
index 044128277248..d0b81dad2970 100644
--- a/drivers/tty/serial/lantiq.c
+++ b/drivers/tty/serial/lantiq.c
@@ -251,6 +251,7 @@ lqasc_err_int(int irq, void *_port)
unsigned long flags;
struct uart_port *port = (struct uart_port *)_port;
spin_lock_irqsave(<q_asc_lock, flags);
+ __raw_writel(ASC_IRNCR_EIR, port->membase + LTQ_ASC_IRNCR);
/* clear any pending interrupts */
ltq_w32_mask(0, ASCWHBSTATE_CLRPE | ASCWHBSTATE_CLRFE |
ASCWHBSTATE_CLRROE, port->membase + LTQ_ASC_WHBSTATE);
--
2.41.0
^ permalink raw reply related [flat|nested] 3+ messages in thread
* [PATCH 4.19.y v2] serial: lantiq: add missing interrupt ack
2023-06-18 12:49 FAILED: patch "[PATCH] serial: lantiq: add missing interrupt ack" failed to apply to 4.19-stable tree gregkh
2023-06-19 21:00 ` [PATCH 4.19.y] serial: lantiq: add missing interrupt ack Bernhard Seibold
@ 2023-06-19 21:08 ` Bernhard Seibold
1 sibling, 0 replies; 3+ messages in thread
From: Bernhard Seibold @ 2023-06-19 21:08 UTC (permalink / raw)
To: stable; +Cc: Bernhard Seibold, Ilpo Järvinen, Greg Kroah-Hartman
commit 306320034e8fbe7ee1cc4f5269c55658b4612048 upstream.
Currently, the error interrupt is never acknowledged, so once active it
will stay active indefinitely, causing the handler to be called in an
infinite loop.
Fixes: 2f0fc4159a6a ("SERIAL: Lantiq: Add driver for MIPS Lantiq SOCs.")
Cc: <stable@vger.kernel.org>
Signed-off-by: Bernhard Seibold <mail@bernhard-seibold.de>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Message-ID: <20230602133029.546-1-mail@bernhard-seibold.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/tty/serial/lantiq.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/tty/serial/lantiq.c b/drivers/tty/serial/lantiq.c
index 044128277248..c6b4bd67d4d9 100644
--- a/drivers/tty/serial/lantiq.c
+++ b/drivers/tty/serial/lantiq.c
@@ -251,6 +251,7 @@ lqasc_err_int(int irq, void *_port)
unsigned long flags;
struct uart_port *port = (struct uart_port *)_port;
spin_lock_irqsave(<q_asc_lock, flags);
+ ltq_w32(ASC_IRNCR_EIR, port->membase + LTQ_ASC_IRNCR);
/* clear any pending interrupts */
ltq_w32_mask(0, ASCWHBSTATE_CLRPE | ASCWHBSTATE_CLRFE |
ASCWHBSTATE_CLRROE, port->membase + LTQ_ASC_WHBSTATE);
--
2.41.0
^ permalink raw reply related [flat|nested] 3+ messages in thread
end of thread, other threads:[~2023-06-19 21:08 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
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2023-06-18 12:49 FAILED: patch "[PATCH] serial: lantiq: add missing interrupt ack" failed to apply to 4.19-stable tree gregkh
2023-06-19 21:00 ` [PATCH 4.19.y] serial: lantiq: add missing interrupt ack Bernhard Seibold
2023-06-19 21:08 ` [PATCH 4.19.y v2] " Bernhard Seibold
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