[patch 75/91] mm: remove xlate_dev_kmem_ptr()

[Andrew Morton <akpm@linux-foundation.org>]

From: David Hildenbrand <david@redhat.com>
Subject: mm: remove xlate_dev_kmem_ptr()

Since /dev/kmem has been removed, let's remove the xlate_dev_kmem_ptr()
leftovers.

Link: https://lkml.kernel.org/r/20210324102351.6932-3-david@redhat.com
Signed-off-by: David Hildenbrand <david@redhat.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Brian Cain <bcain@codeaurora.org>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>
Cc: Helge Deller <deller@gmx.de>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Rich Felker <dalias@libc.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: David Hildenbrand <david@redhat.com>
Cc: Krzysztof Kozlowski <krzk@kernel.org>
Cc: Mikulas Patocka <mpatocka@redhat.com>
Cc: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Palmer Dabbelt <palmerdabbelt@google.com>
Cc: Luis Chamberlain <mcgrof@kernel.org>
Cc: Greentime Hu <green.hu@gmail.com>
Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Jiaxun Yang <jiaxun.yang@flygoat.com>
Cc: "Peter Zijlstra (Intel)" <peterz@infradead.org>
Cc: Christophe Leroy <christophe.leroy@csgroup.eu>
Cc: Gerald Schaefer <gerald.schaefer@linux.ibm.com>
Cc: Niklas Schnelle <schnelle@linux.ibm.com>
Cc: Pierre Morel <pmorel@linux.ibm.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 arch/alpha/include/asm/io.h     |    5 -----
 arch/arm/include/asm/io.h       |    5 -----
 arch/hexagon/include/asm/io.h   |    1 -
 arch/ia64/include/asm/io.h      |    1 -
 arch/ia64/include/asm/uaccess.h |   18 ------------------
 arch/m68k/include/asm/io_mm.h   |    5 -----
 arch/mips/include/asm/io.h      |    5 -----
 arch/parisc/include/asm/io.h    |    5 -----
 arch/powerpc/include/asm/io.h   |    5 -----
 arch/s390/include/asm/io.h      |    5 -----
 arch/sh/include/asm/io.h        |    5 -----
 arch/sparc/include/asm/io_64.h  |    5 -----
 include/asm-generic/io.h        |   11 -----------
 13 files changed, 76 deletions(-)

--- a/arch/alpha/include/asm/io.h~mm-remove-xlate_dev_kmem_ptr
+++ a/arch/alpha/include/asm/io.h
@@ -602,11 +602,6 @@ extern void outsl (unsigned long port, c
  */
 #define xlate_dev_mem_ptr(p)	__va(p)
 
-/*
- * Convert a virtual cached pointer to an uncached pointer
- */
-#define xlate_dev_kmem_ptr(p)	p
-
 #endif /* __KERNEL__ */
 
 #endif /* __ALPHA_IO_H */
--- a/arch/arm/include/asm/io.h~mm-remove-xlate_dev_kmem_ptr
+++ a/arch/arm/include/asm/io.h
@@ -430,11 +430,6 @@ extern void pci_iounmap(struct pci_dev *
  */
 #define xlate_dev_mem_ptr(p)	__va(p)
 
-/*
- * Convert a virtual cached pointer to an uncached pointer
- */
-#define xlate_dev_kmem_ptr(p)	p
-
 #include <asm-generic/io.h>
 
 #ifdef CONFIG_MMU
--- a/arch/hexagon/include/asm/io.h~mm-remove-xlate_dev_kmem_ptr
+++ a/arch/hexagon/include/asm/io.h
@@ -64,7 +64,6 @@ static inline void *phys_to_virt(unsigne
  * convert a physical pointer to a virtual kernel pointer for
  * /dev/mem access.
  */
-#define xlate_dev_kmem_ptr(p)    __va(p)
 #define xlate_dev_mem_ptr(p)    __va(p)
 
 /*
--- a/arch/ia64/include/asm/io.h~mm-remove-xlate_dev_kmem_ptr
+++ a/arch/ia64/include/asm/io.h
@@ -277,7 +277,6 @@ extern void memset_io(volatile void __io
 #define memcpy_fromio memcpy_fromio
 #define memcpy_toio memcpy_toio
 #define memset_io memset_io
-#define xlate_dev_kmem_ptr xlate_dev_kmem_ptr
 #define xlate_dev_mem_ptr xlate_dev_mem_ptr
 #include <asm-generic/io.h>
 #undef PCI_IOBASE
--- a/arch/ia64/include/asm/uaccess.h~mm-remove-xlate_dev_kmem_ptr
+++ a/arch/ia64/include/asm/uaccess.h
@@ -272,22 +272,4 @@ xlate_dev_mem_ptr(phys_addr_t p)
 	return ptr;
 }
 
-/*
- * Convert a virtual cached kernel memory pointer to an uncached pointer
- */
-static __inline__ void *
-xlate_dev_kmem_ptr(void *p)
-{
-	struct page *page;
-	void *ptr;
-
-	page = virt_to_page((unsigned long)p);
-	if (PageUncached(page))
-		ptr = (void *)__pa(p) + __IA64_UNCACHED_OFFSET;
-	else
-		ptr = p;
-
-	return ptr;
-}
-
 #endif /* _ASM_IA64_UACCESS_H */
--- a/arch/m68k/include/asm/io_mm.h~mm-remove-xlate_dev_kmem_ptr
+++ a/arch/m68k/include/asm/io_mm.h
@@ -397,11 +397,6 @@ static inline void isa_delay(void)
  */
 #define xlate_dev_mem_ptr(p)	__va(p)
 
-/*
- * Convert a virtual cached pointer to an uncached pointer
- */
-#define xlate_dev_kmem_ptr(p)	p
-
 #define readb_relaxed(addr)	readb(addr)
 #define readw_relaxed(addr)	readw(addr)
 #define readl_relaxed(addr)	readl(addr)
--- a/arch/mips/include/asm/io.h~mm-remove-xlate_dev_kmem_ptr
+++ a/arch/mips/include/asm/io.h
@@ -564,11 +564,6 @@ extern void (*_dma_cache_inv)(unsigned l
  */
 #define xlate_dev_mem_ptr(p)	__va(p)
 
-/*
- * Convert a virtual cached pointer to an uncached pointer
- */
-#define xlate_dev_kmem_ptr(p)	p
-
 void __ioread64_copy(void *to, const void __iomem *from, size_t count);
 
 #endif /* _ASM_IO_H */
--- a/arch/parisc/include/asm/io.h~mm-remove-xlate_dev_kmem_ptr
+++ a/arch/parisc/include/asm/io.h
@@ -316,11 +316,6 @@ extern void iowrite64be(u64 val, void __
  */
 #define xlate_dev_mem_ptr(p)	__va(p)
 
-/*
- * Convert a virtual cached pointer to an uncached pointer
- */
-#define xlate_dev_kmem_ptr(p)	p
-
 extern int devmem_is_allowed(unsigned long pfn);
 
 #endif
--- a/arch/powerpc/include/asm/io.h~mm-remove-xlate_dev_kmem_ptr
+++ a/arch/powerpc/include/asm/io.h
@@ -663,11 +663,6 @@ static inline void name at					\
 #define xlate_dev_mem_ptr(p)	__va(p)
 
 /*
- * Convert a virtual cached pointer to an uncached pointer
- */
-#define xlate_dev_kmem_ptr(p)	p
-
-/*
  * We don't do relaxed operations yet, at least not with this semantic
  */
 #define readb_relaxed(addr)	readb(addr)
--- a/arch/s390/include/asm/io.h~mm-remove-xlate_dev_kmem_ptr
+++ a/arch/s390/include/asm/io.h
@@ -20,11 +20,6 @@ void *xlate_dev_mem_ptr(phys_addr_t phys
 #define unxlate_dev_mem_ptr unxlate_dev_mem_ptr
 void unxlate_dev_mem_ptr(phys_addr_t phys, void *addr);
 
-/*
- * Convert a virtual cached pointer to an uncached pointer
- */
-#define xlate_dev_kmem_ptr(p)	p
-
 #define IO_SPACE_LIMIT 0
 
 void __iomem *ioremap_prot(phys_addr_t addr, size_t size, unsigned long prot);
--- a/arch/sh/include/asm/io.h~mm-remove-xlate_dev_kmem_ptr
+++ a/arch/sh/include/asm/io.h
@@ -283,11 +283,6 @@ static inline void __iomem *ioremap_prot
  */
 #define xlate_dev_mem_ptr(p)	__va(p)
 
-/*
- * Convert a virtual cached pointer to an uncached pointer
- */
-#define xlate_dev_kmem_ptr(p)	p
-
 #define ARCH_HAS_VALID_PHYS_ADDR_RANGE
 int valid_phys_addr_range(phys_addr_t addr, size_t size);
 int valid_mmap_phys_addr_range(unsigned long pfn, size_t size);
--- a/arch/sparc/include/asm/io_64.h~mm-remove-xlate_dev_kmem_ptr
+++ a/arch/sparc/include/asm/io_64.h
@@ -454,11 +454,6 @@ void sbus_set_sbus64(struct device *, in
  */
 #define xlate_dev_mem_ptr(p)	__va(p)
 
-/*
- * Convert a virtual cached pointer to an uncached pointer
- */
-#define xlate_dev_kmem_ptr(p)	p
-
 #endif
 
 #endif /* !(__SPARC64_IO_H) */
--- a/include/asm-generic/io.h~mm-remove-xlate_dev_kmem_ptr
+++ a/include/asm-generic/io.h
@@ -1064,17 +1064,6 @@ static inline void pci_iounmap(struct pc
 #endif
 #endif /* CONFIG_GENERIC_IOMAP */
 
-/*
- * Convert a virtual cached pointer to an uncached pointer
- */
-#ifndef xlate_dev_kmem_ptr
-#define xlate_dev_kmem_ptr xlate_dev_kmem_ptr
-static inline void *xlate_dev_kmem_ptr(void *addr)
-{
-	return addr;
-}
-#endif
-
 #ifndef xlate_dev_mem_ptr
 #define xlate_dev_mem_ptr xlate_dev_mem_ptr
 static inline void *xlate_dev_mem_ptr(phys_addr_t addr)
_