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Date: Wed, 23 Jul 2025 18:11:47 +0200
Message-Id: <DBJKEPR28MY1.1ISG6JYV3ZJK7@kernel.org>
To: "Daniel Almeida" <daniel.almeida@collabora.com>
From: "Danilo Krummrich" <dakr@kernel.org>
Subject: Re: [PATCH v7 3/6] rust: irq: add support for non-threaded IRQs and
 handlers
Cc: "Boqun Feng" <boqun.feng@gmail.com>, "Miguel Ojeda" <ojeda@kernel.org>,
 "Alex Gaynor" <alex.gaynor@gmail.com>, "Gary Guo" <gary@garyguo.net>,
 =?utf-8?q?Bj=C3=B6rn_Roy_Baron?= <bjorn3_gh@protonmail.com>, "Andreas
 Hindborg" <a.hindborg@kernel.org>, "Alice Ryhl" <aliceryhl@google.com>,
 "Trevor Gross" <tmgross@umich.edu>, "Greg Kroah-Hartman"
 <gregkh@linuxfoundation.org>, "Rafael J. Wysocki" <rafael@kernel.org>,
 "Thomas Gleixner" <tglx@linutronix.de>, "Bjorn Helgaas"
 <bhelgaas@google.com>, =?utf-8?q?Krzysztof_Wilczy=C2=B4nski?=
 <kwilczynski@kernel.org>, "Benno Lossin" <lossin@kernel.org>,
 <linux-kernel@vger.kernel.org>, <rust-for-linux@vger.kernel.org>,
 <linux-pci@vger.kernel.org>
References: <20250715-topics-tyr-request_irq2-v7-0-d469c0f37c07@collabora.com> <20250715-topics-tyr-request_irq2-v7-3-d469c0f37c07@collabora.com> <aIBl6JPh4MQq-0gu@tardis-2.local> <ED19060D-265A-4DEF-A12B-3F5901BBF4F3@collabora.com> <aIDxFoQV_fRLjt3h@tardis-2.local> <95A7ACD9-8D0D-41FB-A0C0-691B699CBA17@collabora.com> <aIEE4Tt7xtaX-9V9@tardis-2.local> <CF821F27-7F78-4B3E-AF62-887341EAA7BE@collabora.com>
In-Reply-To: <CF821F27-7F78-4B3E-AF62-887341EAA7BE@collabora.com>

On Wed Jul 23, 2025 at 6:07 PM CEST, Daniel Almeida wrote:
> On top of that, we can use the
> words "interior mutability" somewhere in the example as well to make it e=
ven
> clearer.

You *can* have this example and I encourage it, I think it is valuable. You=
 can
have spinlock or mutex for this purpose in threaded handler, no?