From: David Lechner <dlechner@baylibre.com>
To: Kurt Borja <kuurtb@gmail.com>,
Andy Shevchenko <andriy.shevchenko@intel.com>,
Lars-Peter Clausen <lars@metafoo.de>,
Michael Hennerich <Michael.Hennerich@analog.com>,
Jonathan Cameron <jic23@kernel.org>,
Benson Leung <bleung@chromium.org>,
Antoniu Miclaus <antoniu.miclaus@analog.com>,
Gwendal Grignou <gwendal@chromium.org>,
Shrikant Raskar <raskar.shree97@gmail.com>,
Per-Daniel Olsson <perdaniel.olsson@axis.com>
Cc: "Nuno Sá" <nuno.sa@analog.com>,
"Andy Shevchenko" <andy@kernel.org>,
"Guenter Roeck" <groeck@chromium.org>,
"Jonathan Cameron" <Jonathan.Cameron@huawei.com>,
linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org,
chrome-platform@lists.linux.dev
Subject: Re: [PATCH v3 2/7] iio: core: Refactor iio_device_claim_direct() implementation
Date: Fri, 16 Jan 2026 15:51:12 -0600 [thread overview]
Message-ID: <5a953bf8-857e-4c67-be43-d60cc9b5a34c@baylibre.com> (raw)
In-Reply-To: <20260106-lock-impr-v3-2-1db909b192c0@gmail.com>
On 1/6/26 2:06 AM, Kurt Borja wrote:
> In order to eventually unify the locking API, implement
> iio_device_claim_direct() fully inline, with the use of
> __iio_dev_mode_lock(), which takes care of sparse annotations.
>
> Signed-off-by: Kurt Borja <kuurtb@gmail.com>
> ---
...
> diff --git a/include/linux/iio/iio.h b/include/linux/iio/iio.h
> index aecda887d833..3cf340208694 100644
> --- a/include/linux/iio/iio.h
> +++ b/include/linux/iio/iio.h
> @@ -664,31 +664,47 @@ int iio_push_event(struct iio_dev *indio_dev, u64 ev_code, s64 timestamp);
>
> void __iio_dev_mode_lock(struct iio_dev *indio_dev) __acquires(indio_dev);
> void __iio_dev_mode_unlock(struct iio_dev *indio_dev) __releases(indio_dev);
> -bool __iio_device_claim_direct(struct iio_dev *indio_dev);
> -void __iio_device_release_direct(struct iio_dev *indio_dev);
>
> /*
> * Helper functions that allow claim and release of direct mode
> * in a fashion that doesn't generate many false positives from sparse.
> * Note this must remain static inline in the header so that sparse
> - * can see the __acquire() marking. Revisit when sparse supports
> - * __cond_acquires()
> + * can see the __acquires() and __releases() markings.
> + */
> +
nit: I think "attributes" would be more technically correct than
"markings" (since we are touching this).
next prev parent reply other threads:[~2026-01-16 21:51 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-01-06 8:06 [PATCH v3 0/7] iio: core: Introduce cleanup.h support for mode locks Kurt Borja
2026-01-06 8:06 ` [PATCH v3 1/7] iio: core: Add and export __iio_dev_mode_lock() Kurt Borja
2026-01-16 20:18 ` Jonathan Cameron
2026-01-17 19:32 ` Kurt Borja
2026-01-06 8:06 ` [PATCH v3 2/7] iio: core: Refactor iio_device_claim_direct() implementation Kurt Borja
2026-01-16 21:51 ` David Lechner [this message]
[not found] ` <CAHp75Vei0q4bJrfuv28B+f-JOn2DGBkE3LT3UX8TiTnmUgDw_w@mail.gmail.com>
2026-01-17 19:45 ` Kurt Borja
2026-01-06 8:06 ` [PATCH v3 3/7] iio: core: Match iio_device_claim_*() semantics and implementation Kurt Borja
2026-01-06 8:06 ` [PATCH v3 4/7] iio: core: Add cleanup.h support for iio_device_claim_*() Kurt Borja
2026-01-16 20:29 ` Jonathan Cameron
2026-01-16 22:03 ` David Lechner
2026-01-18 15:23 ` Kurt Borja
2026-01-18 19:30 ` David Lechner
2026-01-06 8:07 ` [PATCH v3 6/7] iio: health: max30102: Use IIO cleanup helpers Kurt Borja
2026-01-06 8:07 ` [PATCH v3 7/7] iio: light: opt4060: " Kurt Borja
2026-01-16 20:33 ` [PATCH v3 0/7] iio: core: Introduce cleanup.h support for mode locks Jonathan Cameron
2026-01-17 19:42 ` Kurt Borja
2026-01-16 22:08 ` David Lechner
2026-01-17 19:44 ` Kurt Borja
2026-01-18 10:00 ` Nuno Sá
2026-01-18 15:19 ` Kurt Borja
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