From: Andreas Schwab <schwab@linux-m68k.org>
To: Chris Metcalf <cmetcalf@mellanox.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Paul Mackerras <paulus@samba.org>,
Michael Ellerman <mpe@ellerman.id.au>,
<linuxppc-dev@lists.ozlabs.org>,
Adhemerval Zanella <adhemerval.zanella@linaro.org>,
Mike Frysinger <vapier@gentoo.org>
Subject: Re: possible bug in powerpc LE compat syscalls with 64-bit args
Date: Thu, 16 Jun 2016 23:42:14 +0200 [thread overview]
Message-ID: <87r3bwq095.fsf@linux-m68k.org> (raw)
In-Reply-To: <28c367c1-0f60-cd1d-b443-d3876798a627__12262.0927206755$1466112970$gmane$org@mellanox.com> (Chris Metcalf's message of "Thu, 16 Jun 2016 11:36:59 -0400")
Chris Metcalf <cmetcalf@mellanox.com> writes:
> Reviewing what other platforms do, it seems like powerpc compat mode may
> have the opposite problem in little-endian mode, since arguments are passed
> in "hi, lo" order unconditionally in arch/powerpc/kernel/sys_ppc32.c.
PPC32 is always big-endian.
Andreas.
--
Andreas Schwab, schwab@linux-m68k.org
GPG Key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5
"And now for something completely different."
next parent reply other threads:[~2016-06-16 21:42 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <28c367c1-0f60-cd1d-b443-d3876798a627__12262.0927206755$1466112970$gmane$org@mellanox.com>
2016-06-16 21:42 ` Andreas Schwab [this message]
2016-06-17 20:46 ` possible bug in powerpc LE compat syscalls with 64-bit args Chris Metcalf
2016-06-16 15:36 Chris Metcalf
2016-06-16 15:56 ` Adhemerval Zanella
2016-06-17 1:52 ` Michael Ellerman
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