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    SubjectRe: [PATCH] m68k: Merge mmu and non-mmu versions of sys_call_table
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    On Thu, May 5, 2011 at 22:37, Arnd Bergmann <arnd@arndb.de> wrote:
    > On Thursday 05 May 2011 20:44:20 Geert Uytterhoeven wrote:
    >> recvmmsg is a false positive, as we set __ARCH_WANT_SYS_SOCKETCALL.
    >
    > This looks really strange. The commit that introduced recvmmsg (a2e27255)
    > added it to both socketcall and as a separate syscall in a number of
    > architectures, without a good reason for it. I guess it's too late
    > to change that now, but we should at least fix the script so we
    > don't report it missing when socketcall is set.

    Some architectures don't use socketcall, so they use a separate syscall.
    IIRC, powerpc is migrating away from socketcall (commit
    86250b9d12caa1a3dee12a7cf638b7dd70eaadb6, "powerpc: Wire up direct
    socket system calls"), hence they added a separate call for it.

    > However, if your unistd.h has defined __NR_recvmmsg before, you should
    > probably add it to the syscall table, just in case that someone built
    > a binary with that number.

    We never had it.

    BTW, we have a hole at 218/219. I don't remember why, but it may have been
    a placeholder for pselect6 and ppoll when that implementation was still in flux.
    Couldn't find anything about it in git/cvs archives, so I'll check
    have to check my
    old mailing list archives...

    Gr{oetje,eeting}s,

                            Geert

    --
    Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

    In personal conversations with technical people, I call myself a hacker. But
    when I'm talking to journalists I just say "programmer" or something like that.
                                    -- Linus Torvalds
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