[RFC V2 2/6] parisc/mm: Directly use generic [pmd|pgd]_clear_bad()

[Anshuman Khandual]

Drop [pmd|pgd]_ERROR() followed by [pmd|pgd]_clear() instances. But instead
directly use semantically equivalent generic helpers [pmd|pgd]_clear_bad()
in unmap_uncached_[pte|pmd]() which helps in dropping their corresponding
[pmd|pgd]_ERROR() macros across the tree.

Cc: "James E.J. Bottomley" <James.Bottomley at HansenPartnership.com>
Cc: Helge Deller <deller at gmx.de>
Cc: linux-parisc at vger.kernel.org
Cc: linux-kernel at vger.kernel.org
Signed-off-by: Anshuman Khandual <anshuman.khandual at arm.com>
---
 arch/parisc/kernel/pci-dma.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/arch/parisc/kernel/pci-dma.c b/arch/parisc/kernel/pci-dma.c
index bf9f192c826e..84e7309a8266 100644
--- a/arch/parisc/kernel/pci-dma.c
+++ b/arch/parisc/kernel/pci-dma.c
@@ -160,8 +160,7 @@ static inline void unmap_uncached_pte(pmd_t * pmd, unsigned long vaddr,
 	if (pmd_none(*pmd))
 		return;
 	if (pmd_bad(*pmd)) {
-		pmd_ERROR(*pmd);
-		pmd_clear(pmd);
+		pmd_clear_bad(pmd);
 		return;
 	}
 	pte = pte_offset_kernel(pmd, vaddr);
@@ -196,8 +195,7 @@ static inline void unmap_uncached_pmd(pgd_t * dir, unsigned long vaddr,
 	if (pgd_none(*dir))
 		return;
 	if (pgd_bad(*dir)) {
-		pgd_ERROR(*dir);
-		pgd_clear(dir);
+		pgd_clear_bad(dir);
 		return;
 	}
 	pmd = pmd_offset(pud_offset(p4d_offset(dir, vaddr), vaddr), vaddr);
-- 
2.43.0