[RFC PATCH] powerpc: allow compiling with GENERIC_MSI_IRQ

From: Laurentiu Tudor <laurentiu.tudor@nxp.com>

This allows building powerpc with the GENERIC_MSI_IRQ Kconfig
by enabling the asm-generic msi.h in Kbuild. Without this,
there's a compilation error [1] because powerpc, as most arches,
doesn't provide an asm/msi.h.

[1] In file included from ./include/linux/kvm_host.h:20:0,
                 from ./arch/powerpc/include/asm/kvm_ppc.h:30,
                 from arch/powerpc/kernel/dbell.c:20:
./include/linux/msi.h:195:21: fatal error: asm/msi.h: No such file or directory

Signed-off-by: Laurentiu Tudor <laurentiu.tudor@nxp.com>
---
 arch/powerpc/include/asm/Kbuild | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/powerpc/include/asm/Kbuild b/arch/powerpc/include/asm/Kbuild
index 5c4fbc8..c4d141c 100644
--- a/arch/powerpc/include/asm/Kbuild
+++ b/arch/powerpc/include/asm/Kbuild

@@ -8,3 +8,5 @@ generic-y += mcs_spinlock.h
 generic-y += preempt.h
 generic-y += rwsem.h
 generic-y += vtime.h
+generic-y += msi.h
+

-- 
2.9.4