Re: kcsan -Wmaybe-uninitialized warning in ntfs3

Marco Elver <[email protected]> Thu, 23 Apr 2026 13:35:09 +0200

Newsgroups	dev.linux.lists.ntfs3,org.kernel.vger.linux-kernel
Message-ID	<CANpmjNOzsu8fqEr-qfE8LZbVUUUdoqjBojxoXjiOoR7Pzr+zyg@mail.gmail.com>

On Thu, 23 Apr 2026 at 10:12, David Laight <[email protected]> wrote:
> On Wed, 22 Apr 2026 23:50:22 +0200
> Marco Elver <[email protected]> wrote:
>
> > Which means the simplest fix is probably the absolute_pointer() one.
>
> I'm not sure that using absolute_pointer() is right, it is normally used
> for special conversions in low level boot code.
>
> Here it might just be best to explicitly use (void *)(long)addr.

That didn't work - tried, and warnings still there (GCC seems to see
through it).

So that leaves:
- absolute_pointer()
- __diag_ignore_all wrapper (mentioned elsewhere in thread)

Preferences?

Thanks,
-- Marco