[PATCH] csky: add missing brackets in a macro for tlb.h

[Jason Gunthorpe]

As an earlier patch made the macro argument more complicated, compilation
now fails with:

 In file included from mm/madvise.c:30:
 mm/madvise.c: In function 'madvise_free_single_vma':
 arch/csky/include/asm/tlb.h:11:11: error:
     invalid type argument of '->' (have 'struct mmu_gather')

Link: https://lore.kernel.org/r/20190901193601.GB5208@xxxxxxxxxxxx
Fixes: 923bfc561e75 ("pagewalk: separate function pointers from iterator da=
ta")
Reported-by: Guenter Roeck <linux@xxxxxxxxxxxx>
Signed-off-by: Jason Gunthorpe <jgg@xxxxxxxxxxxx>
---
 arch/csky/include/asm/tlb.h | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/csky/include/asm/tlb.h b/arch/csky/include/asm/tlb.h
index 8c7cc097666f04..fdff9b8d70c811 100644
--- a/arch/csky/include/asm/tlb.h
+++ b/arch/csky/include/asm/tlb.h
@@ -8,14 +8,14 @@
=20
 #define tlb_start_vma(tlb, vma) \
 	do { \
-		if (!tlb->fullmm) \
-			flush_cache_range(vma, vma->vm_start, vma->vm_end); \
+		if (!(tlb)->fullmm) \
+			flush_cache_range(vma, (vma)->vm_start, (vma)->vm_end); \
 	}  while (0)
=20
 #define tlb_end_vma(tlb, vma) \
 	do { \
-		if (!tlb->fullmm) \
-			flush_tlb_range(vma, vma->vm_start, vma->vm_end); \
+		if (!(tlb)->fullmm) \
+			flush_tlb_range(vma, (vma)->vm_start, (vma)->vm_end); \
 	}  while (0)
=20
 #define tlb_flush(tlb) flush_tlb_mm((tlb)->mm)
--=20
2.23.0