From: Linus Torvalds <torvalds@linux-foundation.org>
To: Guenter Roeck <linux@roeck-us.net>
Cc: Christoph Hellwig <hch@lst.de>, Al Viro <viro@zeniv.linux.org.uk>,
linux-fsdevel <linux-fsdevel@vger.kernel.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
David Sterba <dsterba@suse.com>,
Miklos Szeredi <miklos@szeredi.hu>,
Anton Altaparmakov <anton@tuxera.com>,
David Howells <dhowells@redhat.com>,
Matthew Wilcox <willy@infradead.org>,
Pavel Begunkov <asml.silence@gmail.com>
Subject: Re: [PATCH] iov_iter: separate direction from flavour
Date: Sun, 4 Jul 2021 15:44:17 -0700 [thread overview]
Message-ID: <CAHk-=whD38FwDPc=gemuS6wNMDxO-PyVbtvcta3qXyO1ROc4EQ@mail.gmail.com> (raw)
In-Reply-To: <03a15dbd-bdb9-1c72-a5cd-2e6a6d49af2b@roeck-us.net>
On Sun, Jul 4, 2021 at 2:47 PM Guenter Roeck <linux@roeck-us.net> wrote:
>
> How about the following ?
>
> WARN_ON_ONCE(IS_ENABLED(CONFIG_MMU) && uaccess_kernel());
Nope, that doesn't work either, because there are no-MMU setups that
don't make the same mistake no-mmu arm and m68k do.
Example: xtensa. But afaik also generic-asm/uaccess.h unless the
architecture overrides something.
So this literally seems like just an arm/m68k bug.
Linus
next prev parent reply other threads:[~2021-07-04 22:44 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-04 17:29 [PATCH] iov_iter: separate direction from flavour Guenter Roeck
2021-07-04 18:31 ` Linus Torvalds
2021-07-04 18:54 ` Guenter Roeck
2021-07-04 19:04 ` Linus Torvalds
2021-07-04 20:28 ` Guenter Roeck
2021-07-04 20:41 ` Linus Torvalds
2021-07-04 21:47 ` Guenter Roeck
2021-07-04 22:44 ` Linus Torvalds [this message]
2021-07-04 22:47 ` Matthew Wilcox
2021-07-04 22:53 ` Linus Torvalds
2021-07-04 23:34 ` Linus Torvalds
2021-07-05 5:17 ` Christoph Hellwig
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='CAHk-=whD38FwDPc=gemuS6wNMDxO-PyVbtvcta3qXyO1ROc4EQ@mail.gmail.com' \
--to=torvalds@linux-foundation.org \
--cc=anton@tuxera.com \
--cc=asml.silence@gmail.com \
--cc=dhowells@redhat.com \
--cc=dsterba@suse.com \
--cc=hch@lst.de \
--cc=linux-fsdevel@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux@roeck-us.net \
--cc=miklos@szeredi.hu \
--cc=viro@zeniv.linux.org.uk \
--cc=willy@infradead.org \
/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;
as well as URLs for NNTP newsgroup(s).