From: Andy Shevchenko <andriy.shevchenko@intel.com>
To: nuno.sa@analog.com
Cc: linux-iio@vger.kernel.org, Jonathan Cameron <jic23@kernel.org>,
David Lechner <dlechner@baylibre.com>,
Andy Shevchenko <andy@kernel.org>
Subject: Re: [PATCH 1/6] iio: buffer-dma: use lockdep instead of WARN()
Date: Wed, 3 Dec 2025 18:20:21 +0200 [thread overview]
Message-ID: <aTBjRQ-FLZizHZn7@smile.fi.intel.com> (raw)
In-Reply-To: <20251203-iio-dmabuf-improvs-v1-1-0e4907ce7322@analog.com>
On Wed, Dec 03, 2025 at 03:11:36PM +0000, Nuno Sá via B4 Relay wrote:
>
> As documented, WARN() should be used with care given that it can panic
> running kernels (depending on command line options). So, instead of
> using it to make sure a lock is held, use the annotations we already
> have in the kernel for the very same reason.
Which also will be a WARN :-)
I believe the main value is a bit different here, i.e. to have code being
annotated with the existing infrastructure.
In any case I support this change
Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com>
--
With Best Regards,
Andy Shevchenko
next prev parent reply other threads:[~2025-12-03 16:20 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-12-03 15:11 [PATCH 0/6] iio: buffer-dma: Minor cleanups and improvements Nuno Sá
2025-12-03 15:11 ` Nuno Sá via B4 Relay
2025-12-03 15:11 ` [PATCH 1/6] iio: buffer-dma: use lockdep instead of WARN() Nuno Sá
2025-12-03 15:11 ` Nuno Sá via B4 Relay
2025-12-03 16:20 ` Andy Shevchenko [this message]
2025-12-04 11:20 ` Nuno Sá
2025-12-03 15:11 ` [PATCH 2/6] iio: buffer-dma: Use the cleanup.h API Nuno Sá
2025-12-03 15:11 ` Nuno Sá via B4 Relay
2025-12-03 16:23 ` Andy Shevchenko
2025-12-06 21:12 ` Jonathan Cameron
2025-12-03 15:11 ` [PATCH 3/6] iio: buffer-dma: Turn iio_dma_buffer_init() void Nuno Sá
2025-12-03 15:11 ` Nuno Sá via B4 Relay
2025-12-03 16:34 ` Andy Shevchenko
2025-12-19 15:03 ` Nuno Sá
2025-12-27 14:02 ` Andy Shevchenko
2026-01-02 10:25 ` Nuno Sá
2026-01-02 12:42 ` Andy Shevchenko
2025-12-03 15:11 ` [PATCH 4/6] iio: buffer-dma: Fix coding style complains Nuno Sá
2025-12-03 15:11 ` Nuno Sá via B4 Relay
2025-12-03 16:29 ` Andy Shevchenko
2025-12-04 11:25 ` Nuno Sá
2025-12-06 21:09 ` Jonathan Cameron
2025-12-03 15:11 ` [PATCH 5/6] iio: buffer-dmaengine: Use the cleanup.h API Nuno Sá
2025-12-03 15:11 ` Nuno Sá via B4 Relay
2025-12-03 15:11 ` [PATCH 6/6] iio: buffer-dmaengine: Fix coding style complains Nuno Sá
2025-12-03 15:11 ` Nuno Sá via B4 Relay
2025-12-03 16:31 ` Andy Shevchenko
2025-12-03 16:33 ` Andy Shevchenko
2025-12-04 11:21 ` Nuno Sá
2025-12-04 11:55 ` Andy Shevchenko
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