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From: Wolfram Sang <wsa+renesas@sang-engineering.com>
To: linux-renesas-soc@vger.kernel.org
Cc: linux-kernel@vger.kernel.org,
	Matthew Wilcox <willy@infradead.org>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Bjorn Andersson <andersson@kernel.org>,
	linux-remoteproc@vger.kernel.org,
	Baolin Wang <baolin.wang@linux.alibaba.com>
Subject: Re: [PATCH v2 3/4] hwspinlock: annotate slot pointer as RCU sensitive
Date: Mon, 29 Jun 2026 11:07:01 +0200	[thread overview]
Message-ID: <akI1tYjNpErOQKzz@ninjato> (raw)
In-Reply-To: <20260622085204.54248-4-wsa+renesas@sang-engineering.com>

On Mon, Jun 22, 2026 at 10:52:02AM +0200, Wolfram Sang wrote:

> Because 'slot' is used within an RCU read-lock, it must not be accessed
> directly but with RCU helpers. Annotate the pointer to enforce checking
> this. Sparse confirms the missing annotation:

This patch will not be needed anymore thanks to Matthew's XArray
conversion coming with the next iteration.


  parent reply	other threads:[~2026-06-29  9:07 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-06-22  8:51 [PATCH v2 0/4] hwspinlock: add summary in debugfs Wolfram Sang
2026-06-22  8:52 ` [PATCH v2 1/4] radix-tree: add parameter doc for radix_tree_deref_slot_protected() Wolfram Sang
2026-06-22 10:16   ` Andy Shevchenko
2026-06-22  8:52 ` [PATCH v2 2/4] radix-tree: allow more lock types with radix_tree_deref_slot_protected() Wolfram Sang
2026-06-22 10:18   ` Andy Shevchenko
2026-06-22  8:52 ` [PATCH v2 3/4] hwspinlock: annotate slot pointer as RCU sensitive Wolfram Sang
2026-06-22 10:20   ` Andy Shevchenko
2026-06-29  9:07   ` Wolfram Sang [this message]
2026-06-22  8:52 ` [PATCH v2 4/4] hwspinlock: add summary in debugfs Wolfram Sang
2026-06-22 10:24   ` Andy Shevchenko
2026-06-22 13:59 ` [PATCH v2 0/4] " Matthew Wilcox
2026-06-22 16:20   ` Wolfram Sang
2026-06-29  8:57   ` Wolfram Sang
2026-06-29 10:40     ` Andy Shevchenko
2026-06-29 10:55       ` Wolfram Sang
2026-06-29 18:54     ` Matthew Wilcox
2026-07-01 15:07       ` Wolfram Sang
2026-06-29 10:03   ` Wolfram Sang

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