linux-kernel - Re: [GIT PULL] non-MM updates for 6.6-rc1

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Message-ID: <CAHk-=wgsKp2ZPxQ_WvRGLJXtZG6Z2TrqC_jNppukfniCZB9doQ@mail.gmail.com>
Date:   Tue, 29 Aug 2023 15:20:37 -0700
From:   Linus Torvalds <torvalds@...ux-foundation.org>
To:     Andrew Morton <akpm@...ux-foundation.org>,
        Josh Poimboeuf <jpoimboe@...nel.org>
Cc:     linux-mm@...ck.org, mm-commits@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [GIT PULL] non-MM updates for 6.6-rc1

On Mon, 28 Aug 2023 at 22:54, Andrew Morton <akpm@...ux-foundation.org> wrote:
>
> Linus, please pull mm.git's non-MM updates for this cycle.

Hmm. For some non-obvious (to me) reason this triggers

  vmlinux.o: warning: objtool: ibt_selftest+0x18: sibling call from
callable instruction with modified stack frame

which didn't happen before, even though the pull doesn't actually
change that file at all.

I see that Josh has a patch to fix this by making it be real assembly
code rather than a hacky inline asm in a C file, but it's a bit
surprising, and I don't see why it's triggered now when it wasn't
before.

At a guess it's related to the Kconfig changes, but I have nothing to
back that guess up with.

Slightly annoying, but I guess I'll live with the warning for now.

               Linus