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From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
To: Zhiyong Tao <zhiyong.tao@mediatek.com>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	linux-serial@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Jiri Slaby <jirislaby@kernel.org>,
	Matthias Brugger <matthias.bgg@gmail.com>
Subject: [PATCH v1 1/1] serial: 8520_mtk: Prepare for platform_get_irq_optional() changes
Date: Fri, 17 Dec 2021 17:10:34 +0200	[thread overview]
Message-ID: <20211217151034.62046-1-andriy.shevchenko@linux.intel.com> (raw)

The platform_get_irq_optional() is going to be changed in a way
that the result of it:
   = 0 means no IRQ is provided
   < 0 means the error which needs to be propagated to the upper layers
   > 0 valid vIRQ is allocated

In this case, drop check for 0. Note, the 0 is not valid vIRQ and
platform_get_irq_optional() issues a big WARN() in such case,

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
 drivers/tty/serial/8250/8250_mtk.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/tty/serial/8250/8250_mtk.c b/drivers/tty/serial/8250/8250_mtk.c
index fb65dc601b23..8d3e16d7bf63 100644
--- a/drivers/tty/serial/8250/8250_mtk.c
+++ b/drivers/tty/serial/8250/8250_mtk.c
@@ -641,7 +641,7 @@ static int __maybe_unused mtk8250_resume(struct device *dev)
 	struct mtk8250_data *data = dev_get_drvdata(dev);
 	int irq = data->rx_wakeup_irq;
 
-	if (irq >= 0)
+	if (irq > 0)
 		disable_irq_wake(irq);
 	pinctrl_pm_select_default_state(dev);
 
-- 
2.34.1


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http://lists.infradead.org/mailman/listinfo/linux-mediatek

WARNING: multiple messages have this Message-ID (diff)
From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
To: Zhiyong Tao <zhiyong.tao@mediatek.com>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	linux-serial@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Jiri Slaby <jirislaby@kernel.org>,
	Matthias Brugger <matthias.bgg@gmail.com>
Subject: [PATCH v1 1/1] serial: 8520_mtk: Prepare for platform_get_irq_optional() changes
Date: Fri, 17 Dec 2021 17:10:34 +0200	[thread overview]
Message-ID: <20211217151034.62046-1-andriy.shevchenko@linux.intel.com> (raw)

The platform_get_irq_optional() is going to be changed in a way
that the result of it:
   = 0 means no IRQ is provided
   < 0 means the error which needs to be propagated to the upper layers
   > 0 valid vIRQ is allocated

In this case, drop check for 0. Note, the 0 is not valid vIRQ and
platform_get_irq_optional() issues a big WARN() in such case,

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
 drivers/tty/serial/8250/8250_mtk.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/tty/serial/8250/8250_mtk.c b/drivers/tty/serial/8250/8250_mtk.c
index fb65dc601b23..8d3e16d7bf63 100644
--- a/drivers/tty/serial/8250/8250_mtk.c
+++ b/drivers/tty/serial/8250/8250_mtk.c
@@ -641,7 +641,7 @@ static int __maybe_unused mtk8250_resume(struct device *dev)
 	struct mtk8250_data *data = dev_get_drvdata(dev);
 	int irq = data->rx_wakeup_irq;
 
-	if (irq >= 0)
+	if (irq > 0)
 		disable_irq_wake(irq);
 	pinctrl_pm_select_default_state(dev);
 
-- 
2.34.1


WARNING: multiple messages have this Message-ID (diff)
From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
To: Zhiyong Tao <zhiyong.tao@mediatek.com>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	linux-serial@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Jiri Slaby <jirislaby@kernel.org>,
	Matthias Brugger <matthias.bgg@gmail.com>
Subject: [PATCH v1 1/1] serial: 8520_mtk: Prepare for platform_get_irq_optional() changes
Date: Fri, 17 Dec 2021 17:10:34 +0200	[thread overview]
Message-ID: <20211217151034.62046-1-andriy.shevchenko@linux.intel.com> (raw)

The platform_get_irq_optional() is going to be changed in a way
that the result of it:
   = 0 means no IRQ is provided
   < 0 means the error which needs to be propagated to the upper layers
   > 0 valid vIRQ is allocated

In this case, drop check for 0. Note, the 0 is not valid vIRQ and
platform_get_irq_optional() issues a big WARN() in such case,

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
 drivers/tty/serial/8250/8250_mtk.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/tty/serial/8250/8250_mtk.c b/drivers/tty/serial/8250/8250_mtk.c
index fb65dc601b23..8d3e16d7bf63 100644
--- a/drivers/tty/serial/8250/8250_mtk.c
+++ b/drivers/tty/serial/8250/8250_mtk.c
@@ -641,7 +641,7 @@ static int __maybe_unused mtk8250_resume(struct device *dev)
 	struct mtk8250_data *data = dev_get_drvdata(dev);
 	int irq = data->rx_wakeup_irq;
 
-	if (irq >= 0)
+	if (irq > 0)
 		disable_irq_wake(irq);
 	pinctrl_pm_select_default_state(dev);
 
-- 
2.34.1


_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

             reply	other threads:[~2021-12-17 15:13 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-12-17 15:10 Andy Shevchenko [this message]
2021-12-17 15:10 ` [PATCH v1 1/1] serial: 8520_mtk: Prepare for platform_get_irq_optional() changes Andy Shevchenko
2021-12-17 15:10 ` Andy Shevchenko
2021-12-17 16:54 ` Greg Kroah-Hartman
2021-12-17 16:54   ` Greg Kroah-Hartman
2021-12-17 16:54   ` Greg Kroah-Hartman
2021-12-17 18:09   ` Andy Shevchenko
2021-12-17 18:09     ` Andy Shevchenko
2021-12-17 18:09     ` Andy Shevchenko

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