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
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20260517151444.66dc4afb@pumpkin \
--to=david.laight.linux@gmail.com \
--cc=akpm@linux-foundation.org \
--cc=andy.shevchenko@gmail.com \
--cc=andy@kernel.org \
--cc=kees@kernel.org \
--cc=linux-hardening@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=thorsten.blum@linux.dev \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox