linux-kernel - linux-next: build failure after merge of the block tree

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Message-ID: <aW5xqLq7gatOy1DV@sirena.org.uk>
Date: Mon, 19 Jan 2026 18:02:16 +0000
From: Mark Brown <broonie@...nel.org>
To: Jens Axboe <axboe@...nel.dk>, Tamir Duberstein <tamird@...il.com>,
	Miguel Ojeda <ojeda@...nel.org>
Cc: Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Linux Next Mailing List <linux-next@...r.kernel.org>
Subject: linux-next: build failure after merge of the block tree

Hi all,

After merging the block tree, today's linux-next build (x86_64
allmodconfig) failed like this:

error: unused import: `c_str`
 --> /tmp/next/build/drivers/block/rnull/configfs.rs:6:5
  |
6 |     c_str,
  |     ^^^^^
  |
  = note: `-D unused-imports` implied by `-D warnings`
  = help: to override `-D warnings` add `#[allow(unused_imports)]`

error: aborting due to 1 previous error

Caused by commit

  4cef2fcda3ada (rnull: replace `kernel::c_str!` with C-Strings)

I have used the version from 20260116 instead.