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From: Geert Uytterhoeven <geert@linux-m68k.org>
To: Arnd Bergmann <arnd@arndb.de>
Cc: Linux/m68k <linux-m68k@lists.linux-m68k.org>,
	Greg Ungerer <gerg@uclinux.org>,
	Linux Kernel Development <linux-kernel@vger.kernel.org>,
	uClinux list <uclinux-dev@uclinux.org>
Subject: Re: [PATCH] m68k: Merge mmu and non-mmu versions of sys_call_table
Date: Fri, 6 May 2011 07:11:42 +0200	[thread overview]
Message-ID: <BANLkTinqouGVWH8CmfM038TKFvhpJEczUQ__36622.971625957$1304658725$gmane$org@mail.gmail.com> (raw)
In-Reply-To: <201105052237.11656.arnd@arndb.de>

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

  reply	other threads:[~2011-05-06  5:11 UTC|newest]

Thread overview: 35+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-05-04 18:37 [PATCH] m68k: Merge mmu and non-mmu versions of sys_call_table Geert Uytterhoeven
2011-05-04 18:37 ` Geert Uytterhoeven
2011-05-04 22:18 ` Greg Ungerer
2011-05-04 22:18   ` Greg Ungerer
2011-05-05  6:24 ` Arnd Bergmann
2011-05-05  6:24   ` Arnd Bergmann
2011-05-05  7:55   ` Greg Ungerer
2011-05-05  7:55   ` Greg Ungerer
2011-05-05 18:44   ` Geert Uytterhoeven
2011-05-05 18:44     ` Geert Uytterhoeven
2011-05-05 20:37     ` Arnd Bergmann
2011-05-05 20:37       ` Arnd Bergmann
2011-05-06  5:11       ` Geert Uytterhoeven [this message]
2011-05-06  5:11       ` Geert Uytterhoeven
2011-05-06  8:24         ` Andreas Schwab
2011-05-06  8:24           ` Andreas Schwab
2011-05-06 18:56           ` Geert Uytterhoeven
2011-05-06 18:56             ` Geert Uytterhoeven
2011-05-05 20:39     ` Mikael Pettersson
2011-05-07  8:34       ` Geert Uytterhoeven
2011-05-07  8:34         ` Geert Uytterhoeven
2011-05-07 13:16         ` Mikael Pettersson
2011-10-23  9:53     ` Andreas Schwab
2011-10-23 12:20       ` Geert Uytterhoeven
2011-10-23 14:59         ` Andreas Schwab
2011-10-23 14:59           ` Andreas Schwab
  -- strict thread matches above, loose matches on Subject: below --
2011-04-06 20:33 Geert Uytterhoeven
2011-04-07  1:53 ` Greg Ungerer
2011-04-13 18:16 ` Geert Uytterhoeven
2011-04-17 20:13   ` Arnd Bergmann
2011-04-19  4:32     ` Greg Ungerer
2011-04-19  8:21       ` Arnd Bergmann
2011-04-19  8:30         ` Geert Uytterhoeven
2011-04-19  8:52         ` Arnd Bergmann
2011-04-19 12:26         ` Greg Ungerer

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