powerpc/mm: Fix compile error of pgtable-ppc64.h
authorLi Zhong <zhong@linux.vnet.ibm.com>
Tue, 28 Jan 2014 12:22:42 +0000 (17:52 +0530)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 13 Feb 2014 21:55:45 +0000 (13:55 -0800)
commit6e4ae926d86530ec2a8bc462b97023022c8dbfc5
treea291f5f398e618ce02824155627ce3f0414a4706
parentcba4fbae241f7afb60d24529d2f7d24486ce5109
powerpc/mm: Fix compile error of pgtable-ppc64.h

commit fd120dc2e205d2318a8b47d6d8098b789e3af67d upstream.

It seems that forward declaration couldn't work well with typedef, use
struct spinlock directly to avoiding following build errors:

In file included from include/linux/spinlock.h:81,
                 from include/linux/seqlock.h:35,
                 from include/linux/time.h:5,
                 from include/uapi/linux/timex.h:56,
                 from include/linux/timex.h:56,
                 from include/linux/sched.h:17,
                 from arch/powerpc/kernel/asm-offsets.c:17:
include/linux/spinlock_types.h:76: error: redefinition of typedef 'spinlock_t'
/root/linux-next/arch/powerpc/include/asm/pgtable-ppc64.h:563: note: previous declaration of 'spinlock_t' was here

Signed-off-by: Li Zhong <zhong@linux.vnet.ibm.com>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
arch/powerpc/include/asm/pgtable-ppc64.h