[PATCH v4 7/9] iio: light: opt3001: mark the interrupt handler __context_unsafe

From: Rupesh Majhi <zoone.rupert@gmail.com>
To: "Alex Lanzano" <lanzano.alex@gmail.com>,
	"Andy Shevchenko" <andy@kernel.org>,
	"Benson Leung" <bleung@chromium.org>,
	"David Lechner" <dlechner@baylibre.com>,
	"Guenter Roeck" <groeck@chromium.org>,
	"Jagath Jog J" <jagathjog1996@gmail.com>,
	"Javier Carrasco" <javier.carrasco.cruz@gmail.com>,
	"Jean-Baptiste Maneyrol" <jean-baptiste.maneyrol@tdk.com>,
	"Jerome Brunet" <jbrunet@baylibre.com>,
	"Jinseob Kim" <kimjinseob88@gmail.com>,
	"Jonathan Cameron" <jic23@kernel.org>,
	"Kevin Hilman" <khilman@baylibre.com>,
	"Lorenzo Bianconi" <lorenzo@kernel.org>,
	"Martin Blumenstingl" <martin.blumenstingl@googlemail.com>,
	"Matti Vaittinen" <mazziesaccount@gmail.com>,
	"Neil Armstrong" <neil.armstrong@linaro.org>,
	"Nuno Sá" <nuno.sa@analog.com>,
	"Remi Buisson" <remi.buisson@tdk.com>
Cc: chrome-platform@lists.linux.dev,
	linux-amlogic@lists.infradead.org,
	linux-arm-kernel@lists.infradead.org,
	linux-arm-msm@vger.kernel.org, linux-iio@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	Rupesh Majhi <zoone.rupert@gmail.com>,
	Marco Elver <elver@google.com>,
	Bart Van Assche <bvanassche@acm.org>
Subject: [PATCH v4 7/9] iio: light: opt3001: mark the interrupt handler __context_unsafe
Date: Tue, 27 Oct 2026 14:49:52 +0200	[thread overview]
Message-ID: <20261027124954.110697-8-zoone.rupert@gmail.com> (raw)
In-Reply-To: <20261027124954.110697-1-zoone.rupert@gmail.com>

opt3001_irq() takes opt->lock only when ok_to_ignore_lock is false, and
releases it under the same test. Context analysis does not follow a
lock taken and released on a condition, so mark the handler
__context_unsafe().

Signed-off-by: Rupesh Majhi <zoone.rupert@gmail.com>
---
Cc: Marco Elver <elver@google.com>
Cc: Bart Van Assche <bvanassche@acm.org>

 drivers/iio/light/opt3001.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/iio/light/opt3001.c b/drivers/iio/light/opt3001.c
index a948353014ac..cfd4a0ba9bd7 100644
--- a/drivers/iio/light/opt3001.c
+++ b/drivers/iio/light/opt3001.c
@@ -817,6 +817,7 @@ static int opt3001_configure(struct opt3001 *opt)
 }
 
 static irqreturn_t opt3001_irq(int irq, void *_iio)
+	__context_unsafe(/* lock only taken when !ok_to_ignore_lock */)
 {
 	struct iio_dev *iio = _iio;
 	struct opt3001 *opt = iio_priv(iio);
-- 
2.43.0


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