From: David Laight <david.laight.linux@gmail.com>
To: Thorsten Blum <thorsten.blum@linux.dev>
Cc: Andy Shevchenko <andy.shevchenko@gmail.com>,
Andrew Morton <akpm@linux-foundation.org>,
Kees Cook <kees@kernel.org>, Andy Shevchenko <andy@kernel.org>,
linux-kernel@vger.kernel.org, linux-hardening@vger.kernel.org
Subject: Re: [PATCH] string: use min in sized_strscpy
Date: Sun, 17 May 2026 15:14:44 +0100 [thread overview]
Message-ID: <20260517151444.66dc4afb@pumpkin> (raw)
In-Reply-To: <agc3DrODtyc2rF27@linux.dev>
On Fri, 15 May 2026 17:09:02 +0200
Thorsten Blum <thorsten.blum@linux.dev> wrote:
> On Fri, May 15, 2026 at 09:45:08AM +0300, Andy Shevchenko wrote:
.
> How about adding
>
> #define offset_in_page(p) ((unsigned long)(p) & ~PAGE_MASK)
> #define bytes_to_page_end(p) (PAGE_SIZE - offset_in_page(p))
>
> to a new header, e.g. include/linux/page_helpers.h? There are about 50+
> direct replacements and possibly more.
>
Why not put them in vdso/page.h just after PAGE_MASK.
-- David
next prev parent reply other threads:[~2026-05-17 14:14 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-14 16:56 [PATCH] string: use min in sized_strscpy Thorsten Blum
2026-05-15 6:45 ` Andy Shevchenko
2026-05-15 15:09 ` Thorsten Blum
2026-05-17 5:56 ` Andy Shevchenko
2026-05-17 14:14 ` David Laight [this message]
2026-05-19 19:37 ` Andrew Morton
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