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From:   Florian Weimer <fw@deneb.enyo.de>
To:     Arnd Bergmann <arnd@arndb.de>
Cc:     Deepa Dinamani <deepa.kernel@gmail.com>,
        "David S . Miller" <davem@davemloft.net>,
        Willem de Bruijn <willemb@google.com>,
        alpha <linux-alpha@vger.kernel.org>,
        linux-arch <linux-arch@vger.kernel.org>,
        linux-mips@vger.kernel.org,
        Parisc List <linux-parisc@vger.kernel.org>,
        sparclinux <sparclinux@vger.kernel.org>,
        Laura Abbott <labbott@redhat.com>,
        Networking <netdev@vger.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        Linux API <linux-api@vger.kernel.org>,
        Josh Boyer <jwboyer@redhat.com>,
        Linus Torvalds <torvalds@linux-foundation.org>,
        Jeff Law <law@redhat.com>
Subject: Re: [PATCH] y2038: fix socket.h header inclusion
References: <20190311153857.563743-1-arnd@arndb.de>
        <87k1h1fgkk.fsf@mid.deneb.enyo.de>
        <CAK8P3a1r8GRC7GTHHqWY-PUn=9rWB-7+Qo=7txanbEjGZ-wppw@mail.gmail.com>
        <87a7hvded7.fsf@mid.deneb.enyo.de>
        <CABeXuvrEecSAkBuN-SmAbGwhLWNCC+bA1=X78fm8xMyw8=hm6Q@mail.gmail.com>
        <CAK8P3a22n5L45Gknqd=2zinVGqRovkk0OABmGLJbGcmg8xXd+A@mail.gmail.com>
Date:   Mon, 18 Mar 2019 10:21:28 +0100
In-Reply-To: <CAK8P3a22n5L45Gknqd=2zinVGqRovkk0OABmGLJbGcmg8xXd+A@mail.gmail.com>
        (Arnd Bergmann's message of "Mon, 18 Mar 2019 09:27:46 +0100")
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* Arnd Bergmann:

> Should we just remove __kernel_fd_set from the exported headers and
> define the internal fd_set directly in include/linux/types.h? (Adding the
> folks from the old thread to Cc).

The type is used in the sanitizers, but incorrectly.  They assume that
FD_SETSIZE is always 1024.  (The existence of __kernel_fd_set is
itself somewhat questionable because it leads to such bugs.)  Moving
around the type could cause a build failure in the sanitizers, but I'm
not entirely clear how the UAPI headers are included there.

Otherwise, I couldn't find any uses.