linux-kernel - [PATCH] csky: delete redundant micro io_remap_pfn

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Date:   Tue, 17 Mar 2020 21:47:01 -0700
From:   Wang Wenhu <wenhu.wang@...o.com>
To:     Guo Ren <guoren@...nel.org>, Will Deacon <will@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Mike Rapoport <rppt@...ux.ibm.com>,
        Wang Wenhu <wenhu.wang@...o.com>, linux-csky@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     kernel@...o.com, trivial@...nel.org
Subject: [PATCH] csky: delete redundant micro io_remap_pfn_range

Same definition exists in "include/asm-generic/pgtable.h",
which is included just below the lines to be deleted.

#ifndef io_remap_pfn_range
#define io_remap_pfn_range remap_pfn_range
#endif

Signed-off-by: Wang Wenhu <wenhu.wang@...o.com>
---
 arch/csky/include/asm/pgtable.h | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/arch/csky/include/asm/pgtable.h b/arch/csky/include/asm/pgtable.h
index 9b7764cb7645..bde812a785c8 100644
--- a/arch/csky/include/asm/pgtable.h
+++ b/arch/csky/include/asm/pgtable.h
@@ -306,9 +306,6 @@ void update_mmu_cache(struct vm_area_struct *vma, unsigned long address,
 /* Needs to be defined here and not in linux/mm.h, as it is arch dependent */
 #define kern_addr_valid(addr)	(1)
 
-#define io_remap_pfn_range(vma, vaddr, pfn, size, prot) \
-	remap_pfn_range(vma, vaddr, pfn, size, prot)
-
 #include <asm-generic/pgtable.h>
 
 #endif /* __ASM_CSKY_PGTABLE_H */
-- 
2.17.1