linux-kernel - Re: Linux 3.15-rc6

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Date:	Thu, 22 May 2014 17:43:34 -0700
From:	Linus Torvalds <torvalds@...ux-foundation.org>
To:	Guenter Roeck <linux@...ck-us.net>,
	Miklos Szeredi <miklos@...redi.hu>,
	Helge Deller <deller@....de>
Cc:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Parisc List <linux-parisc@...r.kernel.org>,
	"James E.J. Bottomley" <jejb@...isc-linux.org>
Subject: Re: Linux 3.15-rc6

Miklos,

this is from your commit 18e480aa07f78 ("parisc: add renameat2
syscall") which was acked by Helge Deller:

On Thu, May 22, 2014 at 10:20 AM, Guenter Roeck <linux@...ck-us.net> wrote:
>
> Unfortunately it appears that the parisc changes cause build failures
> with parisc 64 bit builds.
>
> Building parisc:a500_defconfig ... failed
> Building parisc:generic-64bit_defconfig ... failed
>
> Error log:
> arch/parisc/kernel/built-in.o: In function `sys_call_table':
> (.rodata+0xad0): undefined reference to `compat_sys_renameat2'
> make: *** [vmlinux] Error 1

only s390 seems to need a compat wrapper, and s390 is kind of odd in
many respects, so I suspect renameat2 should just use ENTRY_SAME() on
parisc, but without any way to *test* it I won't apply the patch.

Guenter, I assume that changing the

        ENTRY_COMP(renameat2)

line in arch/parisc/kernel/syscall_table.S to use ENTRY_SAME() at
least fixes the compile error?

            Linus
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