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From: Douglas Anderson <dianders@chromium.org>
To: Jason Wessel <jason.wessel@windriver.com>,
Daniel Thompson <daniel.thompson@linaro.org>,
tglx@linutronix.de, mingo@kernel.org, gregkh@linuxfoundation.org
Cc: linux-arm-msm@vger.kernel.org,
kgdb-bugreport@lists.sourceforge.net,
Douglas Anderson <dianders@chromium.org>,
linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org,
jslaby@suse.com
Subject: [PATCH 3/7] serial: qcom_geni_serial: Process sysrq at port unlock time
Date: Mon, 29 Oct 2018 11:07:03 -0700 [thread overview]
Message-ID: <20181029180707.207546-4-dianders@chromium.org> (raw)
In-Reply-To: <20181029180707.207546-1-dianders@chromium.org>
Let's take advantage of the new ("serial: core: Allow processing sysrq
at port unlock time") to handle sysrqs more cleanly.
Signed-off-by: Douglas Anderson <dianders@chromium.org>
---
drivers/tty/serial/qcom_geni_serial.c | 7 +++----
1 file changed, 3 insertions(+), 4 deletions(-)
diff --git a/drivers/tty/serial/qcom_geni_serial.c b/drivers/tty/serial/qcom_geni_serial.c
index 3c8e0202da8b..20edce1e222e 100644
--- a/drivers/tty/serial/qcom_geni_serial.c
+++ b/drivers/tty/serial/qcom_geni_serial.c
@@ -499,9 +499,7 @@ static int handle_rx_console(struct uart_port *uport, u32 bytes, bool drop)
continue;
}
- spin_unlock(&uport->lock);
- sysrq = uart_handle_sysrq_char(uport, buf[c]);
- spin_lock(&uport->lock);
+ sysrq = uart_prepare_sysrq_char(uport, buf[c]);
if (!sysrq)
tty_insert_flip_char(tport, buf[c], TTY_NORMAL);
@@ -811,7 +809,8 @@ static irqreturn_t qcom_geni_serial_isr(int isr, void *dev)
qcom_geni_serial_handle_rx(uport, drop_rx);
out_unlock:
- spin_unlock_irqrestore(&uport->lock, flags);
+ uart_unlock_and_check_sysrq(uport, flags);
+
return IRQ_HANDLED;
}
--
2.19.1.568.g152ad8e336-goog
next prev parent reply other threads:[~2018-10-29 18:08 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-29 18:07 [PATCH 0/7] serial: Finish kgdb on qcom_geni; fix many lockdep splats w/ kgdb Douglas Anderson
2018-10-29 18:07 ` [PATCH 1/7] serial: qcom_geni_serial: Finish supporting sysrq Douglas Anderson
2018-11-02 16:47 ` Stephen Boyd
2018-10-29 18:07 ` [PATCH 2/7] serial: core: Allow processing sysrq at port unlock time Douglas Anderson
2018-10-30 5:31 ` Doug Anderson
2018-10-29 18:07 ` Douglas Anderson [this message]
2018-10-29 18:07 ` [PATCH 4/7] serial: core: Include console.h from serial_core.h Douglas Anderson
2018-10-29 18:07 ` [PATCH 5/7] serial: 8250: Process sysrq at port unlock time Douglas Anderson
2018-10-29 18:07 ` [PATCH 6/7] smp: Don't yell about IRQs disabled in kgdb_roundup_cpus() Douglas Anderson
2018-10-30 8:25 ` Peter Zijlstra
2018-10-30 9:41 ` Daniel Thompson
2018-10-30 22:21 ` Doug Anderson
2018-10-29 18:07 ` [PATCH 7/7] kgdb: Remove irq flags and local_irq_enable/disable from roundup Douglas Anderson
2018-10-30 11:46 ` Daniel Thompson
2018-10-30 22:22 ` Doug Anderson
2018-10-30 11:56 ` [PATCH 0/7] serial: Finish kgdb on qcom_geni; fix many lockdep splats w/ kgdb Daniel Thompson
2018-10-30 12:31 ` Russell King - ARM Linux
2018-10-30 12:36 ` Andy Shevchenko
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