linux-kernel - Re: [PATCH] mm/memory: Avoid unnecessary kernel/user pointer conversion

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Message-ID: <20210915104028.77qwldwnwpcbjds6@box.shutemov.name>
Date:   Wed, 15 Sep 2021 13:40:28 +0300
From:   "Kirill A. Shutemov" <kirill@...temov.name>
To:     Amit Daniel Kachhap <amit.kachhap@....com>
Cc:     linux-mm@...ck.org, linux-kernel@...r.kernel.org,
        Vincenzo Frascino <Vincenzo.Frascino@....com>,
        Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH] mm/memory: Avoid unnecessary kernel/user pointer
 conversion

On Tue, Sep 14, 2021 at 08:38:20PM +0530, Amit Daniel Kachhap wrote:
> Annotating a pointer from __user to kernel and then back again might
> confuse sparse. In copy_huge_page_from_user() it can be avoided by
> removing the intermediate variable since it is never used.
> 
> Cc: Andrew Morton <akpm@...ux-foundation.org>
> Signed-off-by: Amit Daniel Kachhap <amit.kachhap@....com>

Acked-by: Kirill A. Shutemov <kirill.shutemov@...ux.intel.com>

-- 
 Kirill A. Shutemov