[PATCH 11/15] mips: fix n32 compat_ipc_parse_version

[Paul Burton]

Hello,

Arnd Bergmann wrote:
> While reading through the sysvipc implementation, I noticed that the n32
> semctl/shmctl/msgctl system calls behave differently based on whether
> o32 support is enabled or not: Without o32, the IPC_64 flag passed by
> user space is rejected but calls without that flag get IPC_64 behavior.
> 
> As far as I can tell, this was inadvertently changed by a cleanup patch
> but never noticed by anyone, possibly nobody has tried using sysvipc
> on n32 after linux-3.19.
> 
> Change it back to the old behavior now.
> 
> Fixes: 78aaf956ba3a ("MIPS: Compat: Fix build error if CONFIG_MIPS32_COMPAT but no compat ABI.")
> Cc: stable at vger.kernel.org
> Signed-off-by: Arnd Bergmann <arnd at arndb.de>

Applied to mips-fixes.

Thanks,
    Paul

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