linux-kernel - Re: [GIT PULL] s390 fixes for 6.6-rc7

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Message-ID: <CAHk-=wizgxqjSk7fhyqPuW7Nkt3qwCkr-WKE2DsRu8tK7CC2Tw@mail.gmail.com>
Date:   Sun, 22 Oct 2023 07:54:13 -0700
From:   Linus Torvalds <torvalds@...ux-foundation.org>
To:     Vasily Gorbik <gor@...ux.ibm.com>
Cc:     Andy Shevchenko <andriy.shevchenko@...el.com>,
        Dmitry Torokhov <dmitry.torokhov@...il.com>,
        Kees Cook <keescook@...omium.org>,
        Heiko Carstens <hca@...ux.ibm.com>,
        Alexander Gordeev <agordeev@...ux.ibm.com>,
        linux-kernel@...r.kernel.org, linux-s390@...r.kernel.org
Subject: Re: [GIT PULL] s390 fixes for 6.6-rc7

On Sun, 22 Oct 2023 at 06:18, Vasily Gorbik <gor@...ux.ibm.com> wrote:
>
> This might work.

Hmm. Yes.

But let's fix __KERNEL_DIV_ROUND_UP itself while at it.

(And perhaps move it out of the odd location it is in now - its in
<uapi/linux/const.h> for some unfathomable reason)

And maybe we could do a helper like

    #define __if_constexpr(x, a, b) \
        __builtin_choose_expr(__is_constexpr(x), a, b)

since that is one of the main reasons for that __is_constexpr macro
(and _that_ makes sense in the const.h header file).

                 Linus