lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  linux-cve-announce  PHC 
Open Source and information security mailing list archives
 
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <CAK7LNAR_2jJWJbaUfLDaDJOuJTx_RHj_Ow5coK1k4Y5HGLRQrA@mail.gmail.com>
Date:   Thu, 31 Mar 2022 23:41:34 +0900
From:   Masahiro Yamada <masahiroy@...nel.org>
To:     Steven Rostedt <rostedt@...dmis.org>
Cc:     Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Beau Belgrave <beaub@...ux.microsoft.com>,
        Masami Hiramatsu <mhiramat@...nel.org>,
        linux-trace-devel <linux-trace-devel@...r.kernel.org>,
        bpf <bpf@...r.kernel.org>,
        Network Development <netdev@...r.kernel.org>,
        Alexei Starovoitov <alexei.starovoitov@...il.com>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Michal Marek <michal.lkml@...kovi.net>,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        Linux Kbuild mailing list <linux-kbuild@...r.kernel.org>
Subject: Re: [PATCH] tracing: do not export user_events uapi

On Thu, Mar 31, 2022 at 9:13 PM Steven Rostedt <rostedt@...dmis.org> wrote:
>
> On Thu, 31 Mar 2022 16:29:30 +0900
> Masahiro Yamada <masahiroy@...nel.org> wrote:
>
> > Well, the intended usage of no-export-headers is to
> > cater to the UAPI supported by only some architectures.
> > We have kvm(_para).h here because not all architectures
> > support kvm.
> >
> > If you do not want to export the UAPI,
> > you should not put it in include/uapi/.
> >
> > After the API is finalized, you can move it to
> > include/uapi.
>
> So a little bit of background. I and a few others thought it was done, and
> pushed it to Linus. Then when it made it into his tree (and mentioned on
> LWN) it got a wider audience that had concerns. After they brought up those
> concerns, we agreed that this needs a bit more work. I was hoping not to do
> a full revert and simply marked the change for broken so that it can be
> worked on upstream with the wider audience. Linus appears to be fine with
> this approach, as he helped me with my "mark for BROKEN" patch.
>
> Mathieu's concern is that this header file could be used in older distros
> with newer kernels that have it implemented and added this to keep out of
> those older distros.
>
> The options to make Mathieu sleep better at night are:
>
> 1) this patch
>
> 2) move this file out of uapi.
>
> 3) revert the entire thing.
>
> I really do not want to do #3 but I am willing to do 1 or 2.

I see.

Either 1 or 2 is OK
if  you are sure this will be fixed sooner or later.


-- 
Best Regards
Masahiro Yamada

Powered by blists - more mailing lists