From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Dave Young <dyoung@redhat.com>,
Matt Fleming <matt@codeblueprint.co.uk>,
Linus Torvalds <torvalds@linux-foundation.org>,
"Tobin C. Harding" <me@tobin.cc>,
LKML <linux-kernel@vger.kernel.org>,
"linux-efi@vger.kernel.org" <linux-efi@vger.kernel.org>
Subject: Re: [GIT PULL] hash addresses printed with %p
Date: Mon, 4 Dec 2017 10:59:36 +0100 [thread overview]
Message-ID: <20171204095936.GA10547@kroah.com> (raw)
In-Reply-To: <CAKv+Gu8iOF1BCpZEVRwT=_6FbXsK0ve7fiWKA5R0D5x2P5MavA@mail.gmail.com>
On Mon, Dec 04, 2017 at 09:48:37AM +0000, Ard Biesheuvel wrote:
> On 4 December 2017 at 09:34, Greg Kroah-Hartman
> <gregkh@linuxfoundation.org> wrote:
> > On Mon, Dec 04, 2017 at 05:29:28PM +0800, Dave Young wrote:
> >> On 12/04/17 at 08:36am, Greg Kroah-Hartman wrote:
> >> > On Mon, Dec 04, 2017 at 10:02:16AM +0800, Dave Young wrote:
> >> > > +#define __ATTR_IRUSR(_name) { \
> >> > > + .attr = { .name = __stringify(_name), .mode = S_IRUSR }, \
> >> > > + .show = _name##_show, \
> >> > > +}
> >> >
> >> > Ick, no, as others, including Linus, have said, using IRUSER is a pain
> >> > in the ass to try to look up and remember what it is...
> >> >
> >> > Just use __ATTR() please, it should be fine for what you need to do,
> >> > which is special-case a sysfs attribute.
> >>
> >> Hmm, I was hesitating to do that because it needs either long code
> >> (over 80 chars) or some driver internal macros.
> >>
> >> There is already same issue in dmi-sysfs.c, it uses an internal macro
> >> DMI_SYSFS_ATTR for 0400 attr. I did not search all the kernel code,
> >> there might be more for such special cases. Maybe we can add some
> >> comment in sysfs.h to mention this is for some special case?
> >>
> >> I can do something similar as dmi sysfs code though.
> >
> > Hm, let me look at this this afternoon when I get through some stable
> > patches, it shouldn't be that complex to need a whole new macro...
> >
>
> But wasn't that the whole point? That there is a macro that does what
> you don't want (__ATTR_RO) and none that does what you do want?
my point is that __ATTR() should work for you as-is...
next prev parent reply other threads:[~2017-12-04 9:59 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-11-29 4:59 [GIT PULL] hash addresses printed with %p Tobin C. Harding
2017-11-29 19:22 ` Linus Torvalds
2017-11-29 19:39 ` Linus Torvalds
2017-11-29 20:54 ` Joe Perches
2017-11-29 21:05 ` Linus Torvalds
2017-11-29 21:31 ` Kees Cook
2017-11-29 21:08 ` Tobin C. Harding
2017-11-29 21:14 ` Linus Torvalds
2017-11-29 21:28 ` Tobin C. Harding
2017-11-29 21:36 ` Linus Torvalds
2017-11-30 16:32 ` Greg Kroah-Hartman
2017-11-30 17:10 ` Greg Kroah-Hartman
2017-11-30 17:18 ` Ard Biesheuvel
2017-12-01 9:48 ` Greg Kroah-Hartman
2017-12-01 9:54 ` Ard Biesheuvel
2017-12-01 15:34 ` Greg Kroah-Hartman
2017-12-01 16:33 ` Kees Cook
2017-12-02 8:51 ` Ard Biesheuvel
2017-12-02 22:22 ` Matt Fleming
2017-12-03 1:15 ` Dave Young
2017-12-04 2:02 ` Dave Young
2017-12-04 2:33 ` Joe Perches
2017-12-04 2:39 ` Dave Young
2017-12-04 7:36 ` Greg Kroah-Hartman
2017-12-04 9:29 ` Dave Young
2017-12-04 9:34 ` Greg Kroah-Hartman
2017-12-04 9:48 ` Ard Biesheuvel
2017-12-04 9:59 ` Greg Kroah-Hartman [this message]
2017-12-04 10:03 ` Ard Biesheuvel
2017-12-04 10:11 ` Greg Kroah-Hartman
2017-12-04 12:51 ` David Laight
2017-12-04 14:00 ` Greg Kroah-Hartman
2017-12-05 5:14 ` Dave Young
2017-12-05 8:09 ` Greg Kroah-Hartman
2017-12-05 8:45 ` Dave Young
2017-12-05 8:52 ` Greg Kroah-Hartman
2017-12-05 9:25 ` Ard Biesheuvel
2017-12-05 10:15 ` Greg Kroah-Hartman
2017-12-05 9:32 ` Dave Young
2017-12-05 9:24 ` Dave Young
2017-12-05 10:14 ` Greg Kroah-Hartman
2017-11-30 23:17 ` Linus Torvalds
2017-12-01 9:47 ` Greg Kroah-Hartman
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