linux-kernel - Re: mainline build failure due to f1e4c916f97f ("drm/edid: add EDID block count and size helpers")

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Message-ID: <CAK8P3a2DRBrDmfhz2GbMOqNBufNKS7K7XyeE1Px3AhqAuSZD4A@mail.gmail.com>
Date:   Sat, 28 May 2022 23:08:54 +0200
From:   Arnd Bergmann <arnd@...db.de>
To:     Linus Torvalds <torvalds@...ux-foundation.org>
Cc:     Arnd Bergmann <arnd@...db.de>,
        Sudip Mukherjee <sudipm.mukherjee@...il.com>,
        Russell King <linux@...linux.org.uk>,
        Viresh Kumar <vireshk@...nel.org>,
        Shiraz Hashim <shiraz.linux.kernel@...il.com>,
        Jani Nikula <jani.nikula@...el.com>,
        Ville Syrjälä <ville.syrjala@...ux.intel.com>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Maxime Ripard <mripard@...nel.org>,
        Thomas Zimmermann <tzimmermann@...e.de>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        dri-devel <dri-devel@...ts.freedesktop.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        SoC Team <soc@...nel.org>
Subject: Re: mainline build failure due to f1e4c916f97f ("drm/edid: add EDID
 block count and size helpers")

On Sat, May 28, 2022 at 10:31 PM Linus Torvalds
<torvalds@...ux-foundation.org> wrote:
> On Sat, May 28, 2022 at 11:59 AM Arnd Bergmann <arnd@...db.de> wrote:
> >
> > It's CONFIG_ARM_AEABI, which is normally set everywhere. Without this
> > option, you the kernel is built for the old 'OABI' that forces all non-packed
> > struct members to be at least 16-bit aligned.
>
> Looks like forced word (32 bit) alignment to me.

Ah, of course, I keep mixing it up with the odd structure alignment of m68k,
which does the opposite and aligns struct members to no more than 16 bits.

        Arnd