linux-kernel - [PATCH v2 4/5] x86/io: Remove xlate_dev_kmem

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Message-Id: <20170630170934.83028-5-andriy.shevchenko@linux.intel.com>
Date:   Fri, 30 Jun 2017 20:09:33 +0300
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Ingo Molnar <mingo@...hat.com>, x86@...nel.org,
        Thomas Gleixner <tglx@...utronix.de>,
        "H . Peter Anvin" <hpa@...or.com>, linux-kernel@...r.kernel.org,
        Baolin Wang <baolin.wang@...eadtrum.com>, wsa@...-dreams.de,
        linux-i2c@...r.kernel.org,
        Mika Westerberg <mika.westerberg@...ux.intel.com>,
        intel-gfx@...ts.freedesktop.org
Cc:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Subject: [PATCH v2 4/5] x86/io: Remove xlate_dev_kmem_ptr() duplication

Generic header defines xlate_dev_kmem_ptr().

Reuse it from generic header and remove in x86 code.
Move a description to the generic header as well.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
---
 arch/x86/include/asm/io.h | 5 -----
 include/asm-generic/io.h  | 3 +++
 2 files changed, 3 insertions(+), 5 deletions(-)

diff --git a/arch/x86/include/asm/io.h b/arch/x86/include/asm/io.h
index 252434b00fdb..b3bba2f87e18 100644
--- a/arch/x86/include/asm/io.h
+++ b/arch/x86/include/asm/io.h
@@ -216,11 +216,6 @@ extern void set_iounmap_nonlazy(void);
 #include <asm-generic/iomap.h>
 
 /*
- * Convert a virtual cached pointer to an uncached pointer
- */
-#define xlate_dev_kmem_ptr(p)	p
-
-/*
  * ISA space is 'always mapped' on a typical x86 system, no need to
  * explicitly ioremap() it. The fact that the ISA IO space is mapped
  * to PAGE_OFFSET is pure coincidence - it does not mean ISA values
diff --git a/include/asm-generic/io.h b/include/asm-generic/io.h
index 395afc829409..b4531e3b2120 100644
--- a/include/asm-generic/io.h
+++ b/include/asm-generic/io.h
@@ -915,6 +915,9 @@ extern void ioport_unmap(void __iomem *p);
 #endif /* CONFIG_GENERIC_IOMAP */
 #endif /* CONFIG_HAS_IOPORT_MAP */
 
+/*
+ * 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)
-- 
2.11.0