netdev - Re: pull-request: bpf-next 2022-03-21 v2

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Date:   Wed, 23 Mar 2022 09:26:38 +0900
From:   Masami Hiramatsu <mhiramat@...nel.org>
To:     Alexei Starovoitov <alexei.starovoitov@...il.com>
Cc:     "David S. Miller" <davem@...emloft.net>,
        Daniel Borkmann <daniel@...earbox.net>,
        Peter Zijlstra <peterz@...radead.org>,
        Steven Rostedt <rostedt@...dmis.org>,
        Jakub Kicinski <kuba@...nel.org>,
        Andrii Nakryiko <andrii@...nel.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Stephen Rothwell <sfr@...b.auug.org.au>,
        Network Development <netdev@...r.kernel.org>,
        bpf <bpf@...r.kernel.org>, Kernel Team <kernel-team@...com>
Subject: Re: pull-request: bpf-next 2022-03-21 v2

On Tue, 22 Mar 2022 09:38:07 -0700
Alexei Starovoitov <alexei.starovoitov@...il.com> wrote:

> On Tue, Mar 22, 2022 at 7:32 AM Masami Hiramatsu <mhiramat@...nel.org> wrote:
> >
> > Hi Alexei,
> >
> > So after this is merged, would you have a plan to merge the tip tree
> > which has IBT to the bpf-next? Or should I wait for merging this series
> > or IBT(ENDBR) series in Linus tree?
> >
> > If I add the no ENDBR annotation to the x86 rethook trampoline on this
> > bpf-next branch, it will cause a build error...
> 
> Right now (after arch bits revert) there are no build errors in bpf-next
> and won't be any after the merge into Linus's tree either.
> 
> linux-next is a proxy of what Linus's tree will look like in a few days.
> Please create a single x86 arch patch against linux-next and make sure
> Peter is happy with it.
> We will land that patch at that time.

OK, I'll make that patch on top of linux-next. That will allow us to
build the rethook correctly.

> 
> That patch will be pretty much the same as what you had earlier
> with ENDBR annotation. And maybe regs->ss set which is future proofing
> optional bit and not a functional part of the patch.

Thank you,



-- 
Masami Hiramatsu <mhiramat@...nel.org>