From nobody Mon Feb 9 18:43:13 2026 Received: from galois.linutronix.de (Galois.linutronix.de [193.142.43.55]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id AF22E34F250; Wed, 28 Jan 2026 09:56:04 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=193.142.43.55 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769594167; cv=none; b=pEatAAUQipwRrLc1oUa0O16W9BtbNO3VJfRqkkBtwJNyeK7cQmgoLYuF+BaYi3+akHSfWmU91+mVXuyVIEBMFQNlLQU7uT5LmlozFpIEcWrav8McmFpIv+1CIkmPSCEDxh2IZZqifJRV0pT9Vc3Q6DNHEWkamzrK7eoqixtZnGo= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769594167; c=relaxed/simple; bh=phux7thwKtdZtkvXcZ2DoPmH1TZxv8ZEzey1TPcAu3c=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=kb0HX0MIhQmhSSB9ACzCKnpGk/LBiupJziTeIDVTzG9ZHMIq3/Nzz4mv4Y54lu+IzibNDn72uFFya2766oeLpksT1wubx5aiR2j8ZiqCDzoTLdk0ghIyfwX0qSTmvzsU1pDffNvSMez/u9vqzQSqYsgkKAo1ZrNPSx8oYQPmj7s= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linutronix.de; spf=pass smtp.mailfrom=linutronix.de; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=zNayfIEJ; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=ekQ8KL/s; arc=none smtp.client-ip=193.142.43.55 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linutronix.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linutronix.de Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="zNayfIEJ"; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="ekQ8KL/s" From: Sebastian Andrzej Siewior DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1769594163; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=Ja9nqRg1OSWpmOUqkXhxSrU++h130vgylolwaiBkV1M=; b=zNayfIEJ6xW2SFTVIOCfMFJWX57nz4zk3722jRTmpuQhmOYoxgTurKqgo4c0H/ypopXHPO x8C71WHlxVig0KCBX/+ffmDRZrR06RFTRPjpNW/ZksOwexLSaPF7P3qkpewFfdxnIXXHku TZU5lxm6za9JH7BibnCfuIpJ5YdT20G02Wl1tfYCd2F/doEv3DFNbXv5iHVlbkAzyaMlSD AqO+zA9jef/AeXyr+brrl8c7f6iy1oQLLu3hU5iyKjEs1ntMhtBQdz4L5rGI3qHPvpFMp0 68klIkohsxgSErtb9cccTNzRlBgzQlc+1vud6NHXWlITuvvO1uxegoXkTlsJJw== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1769594163; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=Ja9nqRg1OSWpmOUqkXhxSrU++h130vgylolwaiBkV1M=; b=ekQ8KL/sHRC/JmBS5p4dfPTJSrJFG9walTf76o7ldEwTSw+Hr0xFZiqHQhQzg8DTSf68Id p2Fx7IyCnqTkpuAg== To: linux-kernel@vger.kernel.org Cc: "Thomas Gleixner" , Sebastian Andrzej Siewior , Jonathan Cameron , David Lechner , =?UTF-8?q?Nuno=20S=C3=A1?= , Andy Shevchenko , Lars-Peter Clausen , Michael Hennerich , linux-iio@vger.kernel.org Subject: [PATCH v2 16/20] iio: Use IRQF_NO_THREAD Date: Wed, 28 Jan 2026 10:55:36 +0100 Message-ID: <20260128095540.863589-17-bigeasy@linutronix.de> In-Reply-To: <20260128095540.863589-1-bigeasy@linutronix.de> References: <20260128095540.863589-1-bigeasy@linutronix.de> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" The interrupt handler iio_trigger_generic_data_rdy_poll() will invoke other interrupt handler and this supposed to happen from within the hardirq. Use IRQF_NO_THREAD to forbid forced-threading. Signed-off-by: Sebastian Andrzej Siewior Reviewed-by: Andy Shevchenko --- Cc: Jonathan Cameron Cc: David Lechner Cc: Nuno S=C3=A1 Cc: Andy Shevchenko Cc: Lars-Peter Clausen Cc: Michael Hennerich Cc: linux-iio@vger.kernel.org --- drivers/iio/accel/bma180.c | 5 +++-- drivers/iio/adc/ad7766.c | 2 +- drivers/iio/gyro/itg3200_buffer.c | 8 +++----- drivers/iio/light/si1145.c | 2 +- 4 files changed, 8 insertions(+), 9 deletions(-) diff --git a/drivers/iio/accel/bma180.c b/drivers/iio/accel/bma180.c index 8925f5279e627..7bc6761f51354 100644 --- a/drivers/iio/accel/bma180.c +++ b/drivers/iio/accel/bma180.c @@ -986,8 +986,9 @@ static int bma180_probe(struct i2c_client *client) } =20 ret =3D devm_request_irq(dev, client->irq, - iio_trigger_generic_data_rdy_poll, IRQF_TRIGGER_RISING, - "bma180_event", data->trig); + iio_trigger_generic_data_rdy_poll, + IRQF_TRIGGER_RISING | IRQF_NO_THREAD, + "bma180_event", data->trig); if (ret) { dev_err(dev, "unable to request IRQ\n"); goto err_trigger_free; diff --git a/drivers/iio/adc/ad7766.c b/drivers/iio/adc/ad7766.c index 4d570383ef025..1e6bfe8765ab3 100644 --- a/drivers/iio/adc/ad7766.c +++ b/drivers/iio/adc/ad7766.c @@ -261,7 +261,7 @@ static int ad7766_probe(struct spi_device *spi) * don't enable the interrupt to avoid extra load on the system */ ret =3D devm_request_irq(&spi->dev, spi->irq, ad7766_irq, - IRQF_TRIGGER_FALLING | IRQF_NO_AUTOEN, + IRQF_TRIGGER_FALLING | IRQF_NO_AUTOEN | IRQF_NO_THREAD, dev_name(&spi->dev), ad7766->trig); if (ret < 0) diff --git a/drivers/iio/gyro/itg3200_buffer.c b/drivers/iio/gyro/itg3200_b= uffer.c index a624400a239cb..cf97adfa97274 100644 --- a/drivers/iio/gyro/itg3200_buffer.c +++ b/drivers/iio/gyro/itg3200_buffer.c @@ -118,11 +118,9 @@ int itg3200_probe_trigger(struct iio_dev *indio_dev) if (!st->trig) return -ENOMEM; =20 - ret =3D request_irq(st->i2c->irq, - &iio_trigger_generic_data_rdy_poll, - IRQF_TRIGGER_RISING, - "itg3200_data_rdy", - st->trig); + ret =3D request_irq(st->i2c->irq, &iio_trigger_generic_data_rdy_poll, + IRQF_TRIGGER_RISING | IRQF_NO_THREAD, + "itg3200_data_rdy", st->trig); if (ret) goto error_free_trig; =20 diff --git a/drivers/iio/light/si1145.c b/drivers/iio/light/si1145.c index f8eb251eca8dc..ef0abc4499b74 100644 --- a/drivers/iio/light/si1145.c +++ b/drivers/iio/light/si1145.c @@ -1248,7 +1248,7 @@ static int si1145_probe_trigger(struct iio_dev *indio= _dev) =20 ret =3D devm_request_irq(&client->dev, client->irq, iio_trigger_generic_data_rdy_poll, - IRQF_TRIGGER_FALLING, + IRQF_TRIGGER_FALLING | IRQF_NO_THREAD, "si1145_irq", trig); if (ret < 0) { --=20 2.51.0