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Date:      Tue, 10 Feb 2026 03:11:27 +0200
From:      Konstantin Belousov <kostikbel@gmail.com>
To:        "Bjoern A. Zeeb" <bz@freebsd.org>
Cc:        Brooks Davis <brooks@freebsd.org>, src-committers@freebsd.org, dev-commits-src-all@freebsd.org, dev-commits-src-main@freebsd.org
Subject:   Re: git: ad639400dc9f - main - sys/event.h: use freebsd32_uint64_t for kevent32 64bit members
Message-ID:  <aYqFvy_B7YDP7Ola@kib.kiev.ua>
In-Reply-To: <0qrpp6r-1374-7r1s-8o3o-9280q483q549@mnoonqbm.arg>
References:  <698a3052.36544.6d7c1a7c@gitrepo.freebsd.org> <0qrpp6r-1374-7r1s-8o3o-9280q483q549@mnoonqbm.arg>

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On Tue, Feb 10, 2026 at 12:42:24AM +0000, Bjoern A. Zeeb wrote:
> On Mon, 9 Feb 2026, Konstantin Belousov wrote:
> 
> Hi,
> 
> > The branch main has been updated by kib:
> > 
> > URL: https://cgit.FreeBSD.org/src/commit/?id=ad639400dc9f1c5aec470996473bb54edc113dba
> > 
> > commit ad639400dc9f1c5aec470996473bb54edc113dba
> > Author:     Konstantin Belousov <kib@FreeBSD.org>
> > AuthorDate: 2026-02-05 19:22:44 +0000
> > Commit:     Konstantin Belousov <kib@FreeBSD.org>
> > CommitDate: 2026-02-09 18:57:19 +0000
> > 
> >    sys/event.h: use freebsd32_uint64_t for kevent32 64bit members
> > 
> >    Reviewed by:    brooks
> >    Sponsored by:   The FreeBSD Foundation
> >    MFC after:      1 week
> >    Differential revision:  https://reviews.freebsd.org/D55135
> 
> It seems that this commit breaks drm-kmod radeon drivers at least.
> 
> I assume given the abi_compat.h now gets exposed via event.h into
> LinuxKPI and "CP2" etc. are just very generic names.
I already created https://reviews.freebsd.org/D55202

> 
> 
>      26 In file included from /home/bz/local_modules_dir/drm-kmod/drivers/gpu/drm/radeon/ci_dpm.c:31:
>      27 /home/bz/local_modules_dir/drm-kmod/drivers/gpu/drm/radeon/cikd.h:852:10: error: 'CP2' macro redefined [-Werror,-Wmacro-redefined]
>      28   852 | #define         CP2                                     (1 << 2)
>      29       |                 ^
>      30 /home/bz/git/FreeBSD/freebsd-src/sys/sys/abi_compat.h:73:9: note: previous definition is here
>      31    73 | #define CP2(src, dst, sfld, dfld) do {          \
>      32       |         ^
>      33 1 error generated.
> 
> 
> > ---
> > sys/compat/freebsd32/freebsd32_misc.c | 38 ++++++-----------------------------
> > sys/sys/event.h                       |  6 ++++--
> > usr.bin/kdump/kdump.c                 |  6 +-----
> > 3 files changed, 11 insertions(+), 39 deletions(-)
> > 
> ...
> ...
> ...
> > diff --git a/sys/sys/event.h b/sys/sys/event.h
> > index ebbcdb703183..0ba8e4796208 100644
> > --- a/sys/sys/event.h
> > +++ b/sys/sys/event.h
> > @@ -104,6 +104,8 @@ struct freebsd11_kevent {
> > #endif
> > 
> > #if defined(_WANT_KEVENT32) || defined(_KERNEL)
> > +#include <sys/abi_compat.h>
> > +
> > struct kevent32 {
> > 	__uint32_t	ident;		/* identifier for this event */
> > 	short		filter;		/* filter for event */
> ...
> 
> -- 
> Bjoern A. Zeeb                                                     r15:7


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