linux-kernel - Re: [PATCH 1/2] riscv: Fix sparse warning in __get_user

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Message-ID: <6bc6fe97-b9e6-03ca-91e9-e61fcd51f3b9@kernel.org>
Date: Fri, 5 Sep 2025 16:14:43 -0600 (MDT)
From: Paul Walmsley <pjw@...nel.org>
To: Alexandre Ghiti <alexghiti@...osinc.com>
cc: kernel test robot <lkp@...el.com>, Al Viro <viro@...iv.linux.org.uk>, 
    Paul Walmsley <paul.walmsley@...ive.com>, 
    Palmer Dabbelt <palmer@...belt.com>, Albert Ou <aou@...s.berkeley.edu>, 
    Alexandre Ghiti <alex@...ti.fr>, Cyril Bur <cyrilbur@...storrent.com>, 
    Jisheng Zhang <jszhang@...nel.org>, linux-riscv@...ts.infradead.org, 
    linux-kernel@...r.kernel.org, stable@...r.kernel.org
Subject: Re: [PATCH 1/2] riscv: Fix sparse warning in __get_user_error()

On Wed, 3 Sep 2025, Alexandre Ghiti wrote:

> We used to assign 0 to x without an appropriate cast which results in
> sparse complaining when x is a pointer:
> 
> >> block/ioctl.c:72:39: sparse: sparse: Using plain integer as NULL pointer
> 
> So fix this by casting 0 to the correct type of x.

Thanks, queued for v6.17-rc fixes.

- Paul