Re: [PATCH v4 01/36] asm-generic/io.h: move ioremap_nocache/ioremap_uc/ioremap_wc/ioremap_wt out of ifndef CONFIG_MMU

From: kbuild test robot
Date: Wed Dec 20 2017 - 05:10:20 EST

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In reply to: Greentime Hu: "[PATCH v4 01/36] asm-generic/io.h: move ioremap_nocache/ioremap_uc/ioremap_wc/ioremap_wt out of ifndef CONFIG_MMU"
Next in thread: Greentime Hu: "Re: [PATCH v4 01/36] asm-generic/io.h: move ioremap_nocache/ioremap_uc/ioremap_wc/ioremap_wt out of ifndef CONFIG_MMU"
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Hi Greentime,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on tip/timers/core]
[also build test ERROR on v4.15-rc4 next-20171220]
[cannot apply to linus/master]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url: https://github.com/0day-ci/linux/commits/Greentime-Hu/Andes-nds32-Linux-Kernel/20171220-155937
config: sparc-defconfig (attached as .config)
compiler: sparc-linux-gcc (GCC) 7.2.0
reproduce:
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
make.cross ARCH=sparc

All error/warnings (new ones prefixed by >>):

In file included from arch/sparc/include/asm/io.h:6:0,
from include/linux/io.h:25,
from include/linux/irq.h:24,
from include/asm-generic/hardirq.h:12,
from arch/sparc/include/asm/hardirq_32.h:10,
from arch/sparc/include/asm/hardirq.h:6,
from include/linux/hardirq.h:8,
from include/linux/interrupt.h:12,
from arch/sparc/kernel/kernel.h:4,
from arch/sparc/kernel/traps_32.c:30:
>> arch/sparc/include/asm/io_32.h:129:15: error: conflicting types for 'ioremap'
void __iomem *ioremap(unsigned long offset, unsigned long size);
^~~~~~~
In file included from arch/sparc/include/asm/io_32.h:13:0,
from arch/sparc/include/asm/io.h:6,
from include/linux/io.h:25,
from include/linux/irq.h:24,
from include/asm-generic/hardirq.h:12,
from arch/sparc/include/asm/hardirq_32.h:10,
from arch/sparc/include/asm/hardirq.h:6,
from include/linux/hardirq.h:8,
from include/linux/interrupt.h:12,
from arch/sparc/kernel/kernel.h:4,
from arch/sparc/kernel/traps_32.c:30:
include/asm-generic/io.h:864:15: note: previous declaration of 'ioremap' was here
void __iomem *ioremap(phys_addr_t phys_addr, size_t size);
^~~~~~~
In file included from arch/sparc/include/asm/io.h:6:0,
from include/linux/io.h:25,
from include/linux/irq.h:24,
from include/asm-generic/hardirq.h:12,
from arch/sparc/include/asm/hardirq_32.h:10,
from arch/sparc/include/asm/hardirq.h:6,
from include/linux/hardirq.h:8,
from include/linux/interrupt.h:12,
from arch/sparc/kernel/kernel.h:4,
from arch/sparc/kernel/traps_32.c:30:
arch/sparc/include/asm/io_32.h:130:0: error: "ioremap_nocache" redefined [-Werror]
#define ioremap_nocache(X,Y) ioremap((X),(Y))

In file included from arch/sparc/include/asm/io_32.h:13:0,
from arch/sparc/include/asm/io.h:6,
from include/linux/io.h:25,
from include/linux/irq.h:24,
from include/asm-generic/hardirq.h:12,
from arch/sparc/include/asm/hardirq_32.h:10,
from arch/sparc/include/asm/hardirq.h:6,
from include/linux/hardirq.h:8,
from include/linux/interrupt.h:12,
from arch/sparc/kernel/kernel.h:4,
from arch/sparc/kernel/traps_32.c:30:
include/asm-generic/io.h:865:0: note: this is the location of the previous definition
#define ioremap_nocache ioremap_nocache

In file included from arch/sparc/include/asm/io.h:6:0,
from include/linux/io.h:25,
from include/linux/irq.h:24,
from include/asm-generic/hardirq.h:12,
from arch/sparc/include/asm/hardirq_32.h:10,
from arch/sparc/include/asm/hardirq.h:6,
from include/linux/hardirq.h:8,
from include/linux/interrupt.h:12,
from arch/sparc/kernel/kernel.h:4,
from arch/sparc/kernel/traps_32.c:30:
arch/sparc/include/asm/io_32.h:131:0: error: "ioremap_wc" redefined [-Werror]
#define ioremap_wc(X,Y) ioremap((X),(Y))

In file included from arch/sparc/include/asm/io_32.h:13:0,
from arch/sparc/include/asm/io.h:6,
from include/linux/io.h:25,
from include/linux/irq.h:24,
from include/asm-generic/hardirq.h:12,
from arch/sparc/include/asm/hardirq_32.h:10,
from arch/sparc/include/asm/hardirq.h:6,
from include/linux/hardirq.h:8,
from include/linux/interrupt.h:12,
from arch/sparc/kernel/kernel.h:4,
from arch/sparc/kernel/traps_32.c:30:
include/asm-generic/io.h:881:0: note: this is the location of the previous definition
#define ioremap_wc ioremap_wc

In file included from arch/sparc/include/asm/io.h:6:0,
from include/linux/io.h:25,
from include/linux/irq.h:24,
from include/asm-generic/hardirq.h:12,
from arch/sparc/include/asm/hardirq_32.h:10,
from arch/sparc/include/asm/hardirq.h:6,
from include/linux/hardirq.h:8,
from include/linux/interrupt.h:12,
from arch/sparc/kernel/kernel.h:4,
from arch/sparc/kernel/traps_32.c:30:
arch/sparc/include/asm/io_32.h:132:0: error: "ioremap_wt" redefined [-Werror]
#define ioremap_wt(X,Y) ioremap((X),(Y))

In file included from arch/sparc/include/asm/io_32.h:13:0,
from arch/sparc/include/asm/io.h:6,
from include/linux/io.h:25,
from include/linux/irq.h:24,
from include/asm-generic/hardirq.h:12,
from arch/sparc/include/asm/hardirq_32.h:10,
from arch/sparc/include/asm/hardirq.h:6,
from include/linux/hardirq.h:8,
from include/linux/interrupt.h:12,
from arch/sparc/kernel/kernel.h:4,
from arch/sparc/kernel/traps_32.c:30:
include/asm-generic/io.h:889:0: note: this is the location of the previous definition
#define ioremap_wt ioremap_wt

cc1: all warnings being treated as errors
--
In file included from arch/sparc/include/asm/io.h:6:0,
from include/linux/io.h:25,
from include/linux/irq.h:24,
from include/asm-generic/hardirq.h:12,
from arch/sparc/include/asm/hardirq_32.h:10,
from arch/sparc/include/asm/hardirq.h:6,
from include/linux/hardirq.h:8,
from include/linux/interrupt.h:12,
from include/linux/pci.h:31,
from arch/sparc/kernel/ioport.c:36:
>> arch/sparc/include/asm/io_32.h:129:15: error: conflicting types for 'ioremap'
void __iomem *ioremap(unsigned long offset, unsigned long size);
^~~~~~~
In file included from arch/sparc/include/asm/io_32.h:13:0,
from arch/sparc/include/asm/io.h:6,
from include/linux/io.h:25,
from include/linux/irq.h:24,
from include/asm-generic/hardirq.h:12,
from arch/sparc/include/asm/hardirq_32.h:10,
from arch/sparc/include/asm/hardirq.h:6,
from include/linux/hardirq.h:8,
from include/linux/interrupt.h:12,
from include/linux/pci.h:31,
from arch/sparc/kernel/ioport.c:36:
include/asm-generic/io.h:864:15: note: previous declaration of 'ioremap' was here
void __iomem *ioremap(phys_addr_t phys_addr, size_t size);
^~~~~~~
In file included from arch/sparc/include/asm/io.h:6:0,
from include/linux/io.h:25,
from include/linux/irq.h:24,
from include/asm-generic/hardirq.h:12,
from arch/sparc/include/asm/hardirq_32.h:10,
from arch/sparc/include/asm/hardirq.h:6,
from include/linux/hardirq.h:8,
from include/linux/interrupt.h:12,
from include/linux/pci.h:31,
from arch/sparc/kernel/ioport.c:36:
arch/sparc/include/asm/io_32.h:130:0: error: "ioremap_nocache" redefined [-Werror]
#define ioremap_nocache(X,Y) ioremap((X),(Y))

In file included from arch/sparc/include/asm/io_32.h:13:0,
from arch/sparc/include/asm/io.h:6,
from include/linux/io.h:25,
from include/linux/irq.h:24,
from include/asm-generic/hardirq.h:12,
from arch/sparc/include/asm/hardirq_32.h:10,
from arch/sparc/include/asm/hardirq.h:6,
from include/linux/hardirq.h:8,
from include/linux/interrupt.h:12,
from include/linux/pci.h:31,
from arch/sparc/kernel/ioport.c:36:
include/asm-generic/io.h:865:0: note: this is the location of the previous definition
#define ioremap_nocache ioremap_nocache

In file included from arch/sparc/include/asm/io.h:6:0,
from include/linux/io.h:25,
from include/linux/irq.h:24,
from include/asm-generic/hardirq.h:12,
from arch/sparc/include/asm/hardirq_32.h:10,
from arch/sparc/include/asm/hardirq.h:6,
from include/linux/hardirq.h:8,
from include/linux/interrupt.h:12,
from include/linux/pci.h:31,
from arch/sparc/kernel/ioport.c:36:
arch/sparc/include/asm/io_32.h:131:0: error: "ioremap_wc" redefined [-Werror]
#define ioremap_wc(X,Y) ioremap((X),(Y))

In file included from arch/sparc/include/asm/io_32.h:13:0,
from arch/sparc/include/asm/io.h:6,
from include/linux/io.h:25,
from include/linux/irq.h:24,
from include/asm-generic/hardirq.h:12,
from arch/sparc/include/asm/hardirq_32.h:10,
from arch/sparc/include/asm/hardirq.h:6,
from include/linux/hardirq.h:8,
from include/linux/interrupt.h:12,
from include/linux/pci.h:31,
from arch/sparc/kernel/ioport.c:36:
include/asm-generic/io.h:881:0: note: this is the location of the previous definition
#define ioremap_wc ioremap_wc

In file included from arch/sparc/include/asm/io.h:6:0,
from include/linux/io.h:25,
from include/linux/irq.h:24,
from include/asm-generic/hardirq.h:12,
from arch/sparc/include/asm/hardirq_32.h:10,
from arch/sparc/include/asm/hardirq.h:6,
from include/linux/hardirq.h:8,
from include/linux/interrupt.h:12,
from include/linux/pci.h:31,
from arch/sparc/kernel/ioport.c:36:
arch/sparc/include/asm/io_32.h:132:0: error: "ioremap_wt" redefined [-Werror]
#define ioremap_wt(X,Y) ioremap((X),(Y))

In file included from arch/sparc/include/asm/io_32.h:13:0,
from arch/sparc/include/asm/io.h:6,
from include/linux/io.h:25,
from include/linux/irq.h:24,
from include/asm-generic/hardirq.h:12,
from arch/sparc/include/asm/hardirq_32.h:10,
from arch/sparc/include/asm/hardirq.h:6,
from include/linux/hardirq.h:8,
from include/linux/interrupt.h:12,
from include/linux/pci.h:31,
from arch/sparc/kernel/ioport.c:36:
include/asm-generic/io.h:889:0: note: this is the location of the previous definition
#define ioremap_wt ioremap_wt

>> arch/sparc/kernel/ioport.c:124:15: error: conflicting types for 'ioremap'
void __iomem *ioremap(unsigned long offset, unsigned long size)
^~~~~~~
In file included from arch/sparc/include/asm/io_32.h:13:0,
from arch/sparc/include/asm/io.h:6,
from include/linux/io.h:25,
from include/linux/irq.h:24,
from include/asm-generic/hardirq.h:12,
from arch/sparc/include/asm/hardirq_32.h:10,
from arch/sparc/include/asm/hardirq.h:6,
from include/linux/hardirq.h:8,
from include/linux/interrupt.h:12,
from include/linux/pci.h:31,
from arch/sparc/kernel/ioport.c:36:
include/asm-generic/io.h:864:15: note: previous declaration of 'ioremap' was here
void __iomem *ioremap(phys_addr_t phys_addr, size_t size);
^~~~~~~
In file included from include/linux/linkage.h:6:0,
from include/linux/kernel.h:6,
from include/linux/list.h:8,
from include/linux/module.h:9,
from arch/sparc/kernel/ioport.c:28:
arch/sparc/kernel/ioport.c:131:15: error: conflicting types for 'ioremap'
EXPORT_SYMBOL(ioremap);
^
include/linux/export.h:65:21: note: in definition of macro '___EXPORT_SYMBOL'
extern typeof(sym) sym; \
^~~
>> arch/sparc/kernel/ioport.c:131:1: note: in expansion of macro 'EXPORT_SYMBOL'
EXPORT_SYMBOL(ioremap);
^~~~~~~~~~~~~
In file included from arch/sparc/include/asm/io_32.h:13:0,
from arch/sparc/include/asm/io.h:6,
from include/linux/io.h:25,
from include/linux/irq.h:24,
from include/asm-generic/hardirq.h:12,
from arch/sparc/include/asm/hardirq_32.h:10,
from arch/sparc/include/asm/hardirq.h:6,
from include/linux/hardirq.h:8,
from include/linux/interrupt.h:12,
from include/linux/pci.h:31,
from arch/sparc/kernel/ioport.c:36:
include/asm-generic/io.h:864:15: note: previous declaration of 'ioremap' was here
void __iomem *ioremap(phys_addr_t phys_addr, size_t size);
^~~~~~~
cc1: all warnings being treated as errors
--
In file included from arch/sparc/include/asm/io.h:6:0,
from include/linux/io.h:25,
from include/linux/irq.h:24,
from include/asm-generic/hardirq.h:12,
from arch/sparc/include/asm/hardirq_32.h:10,
from arch/sparc/include/asm/hardirq.h:6,
from include/linux/hardirq.h:8,
from include/linux/interrupt.h:12,
from include/linux/pci.h:31,
from arch/sparc//kernel/ioport.c:36:
>> arch/sparc/include/asm/io_32.h:129:15: error: conflicting types for 'ioremap'
void __iomem *ioremap(unsigned long offset, unsigned long size);
^~~~~~~
In file included from arch/sparc/include/asm/io_32.h:13:0,
from arch/sparc/include/asm/io.h:6,
from include/linux/io.h:25,
from include/linux/irq.h:24,
from include/asm-generic/hardirq.h:12,
from arch/sparc/include/asm/hardirq_32.h:10,
from arch/sparc/include/asm/hardirq.h:6,
from include/linux/hardirq.h:8,
from include/linux/interrupt.h:12,
from include/linux/pci.h:31,
from arch/sparc//kernel/ioport.c:36:
include/asm-generic/io.h:864:15: note: previous declaration of 'ioremap' was here
void __iomem *ioremap(phys_addr_t phys_addr, size_t size);
^~~~~~~
In file included from arch/sparc/include/asm/io.h:6:0,
from include/linux/io.h:25,
from include/linux/irq.h:24,
from include/asm-generic/hardirq.h:12,
from arch/sparc/include/asm/hardirq_32.h:10,
from arch/sparc/include/asm/hardirq.h:6,
from include/linux/hardirq.h:8,
from include/linux/interrupt.h:12,
from include/linux/pci.h:31,
from arch/sparc//kernel/ioport.c:36:
arch/sparc/include/asm/io_32.h:130:0: error: "ioremap_nocache" redefined [-Werror]
#define ioremap_nocache(X,Y) ioremap((X),(Y))

In file included from arch/sparc/include/asm/io_32.h:13:0,
from arch/sparc/include/asm/io.h:6,
from include/linux/io.h:25,
from include/linux/irq.h:24,
from include/asm-generic/hardirq.h:12,
from arch/sparc/include/asm/hardirq_32.h:10,
from arch/sparc/include/asm/hardirq.h:6,
from include/linux/hardirq.h:8,
from include/linux/interrupt.h:12,
from include/linux/pci.h:31,
from arch/sparc//kernel/ioport.c:36:
include/asm-generic/io.h:865:0: note: this is the location of the previous definition
#define ioremap_nocache ioremap_nocache

In file included from arch/sparc/include/asm/io.h:6:0,
from include/linux/io.h:25,
from include/linux/irq.h:24,
from include/asm-generic/hardirq.h:12,
from arch/sparc/include/asm/hardirq_32.h:10,
from arch/sparc/include/asm/hardirq.h:6,
from include/linux/hardirq.h:8,
from include/linux/interrupt.h:12,
from include/linux/pci.h:31,
from arch/sparc//kernel/ioport.c:36:
arch/sparc/include/asm/io_32.h:131:0: error: "ioremap_wc" redefined [-Werror]
#define ioremap_wc(X,Y) ioremap((X),(Y))

In file included from arch/sparc/include/asm/io_32.h:13:0,
from arch/sparc/include/asm/io.h:6,
from include/linux/io.h:25,
from include/linux/irq.h:24,
from include/asm-generic/hardirq.h:12,
from arch/sparc/include/asm/hardirq_32.h:10,
from arch/sparc/include/asm/hardirq.h:6,
from include/linux/hardirq.h:8,
from include/linux/interrupt.h:12,
from include/linux/pci.h:31,
from arch/sparc//kernel/ioport.c:36:
include/asm-generic/io.h:881:0: note: this is the location of the previous definition
#define ioremap_wc ioremap_wc

In file included from arch/sparc/include/asm/io.h:6:0,
from include/linux/io.h:25,
from include/linux/irq.h:24,
from include/asm-generic/hardirq.h:12,
from arch/sparc/include/asm/hardirq_32.h:10,
from arch/sparc/include/asm/hardirq.h:6,
from include/linux/hardirq.h:8,
from include/linux/interrupt.h:12,
from include/linux/pci.h:31,
from arch/sparc//kernel/ioport.c:36:
arch/sparc/include/asm/io_32.h:132:0: error: "ioremap_wt" redefined [-Werror]
#define ioremap_wt(X,Y) ioremap((X),(Y))

In file included from arch/sparc/include/asm/io_32.h:13:0,
from arch/sparc/include/asm/io.h:6,
from include/linux/io.h:25,
from include/linux/irq.h:24,
from include/asm-generic/hardirq.h:12,
from arch/sparc/include/asm/hardirq_32.h:10,
from arch/sparc/include/asm/hardirq.h:6,
from include/linux/hardirq.h:8,
from include/linux/interrupt.h:12,
from include/linux/pci.h:31,
from arch/sparc//kernel/ioport.c:36:
include/asm-generic/io.h:889:0: note: this is the location of the previous definition
#define ioremap_wt ioremap_wt

arch/sparc//kernel/ioport.c:124:15: error: conflicting types for 'ioremap'
void __iomem *ioremap(unsigned long offset, unsigned long size)
^~~~~~~

vim +/ioremap +129 arch/sparc/include/asm/io_32.h

f5e706ad include/asm-sparc/io_32.h Sam Ravnborg 2008-07-17 124
f5e706ad include/asm-sparc/io_32.h Sam Ravnborg 2008-07-17 125 /*
f5e706ad include/asm-sparc/io_32.h Sam Ravnborg 2008-07-17 126 * Bus number may be embedded in the higher bits of the physical address.
f5e706ad include/asm-sparc/io_32.h Sam Ravnborg 2008-07-17 127 * This is why we have no bus number argument to ioremap().
f5e706ad include/asm-sparc/io_32.h Sam Ravnborg 2008-07-17 128 */
f05a6865 arch/sparc/include/asm/io_32.h Sam Ravnborg 2014-05-16 @129 void __iomem *ioremap(unsigned long offset, unsigned long size);
f5e706ad include/asm-sparc/io_32.h Sam Ravnborg 2008-07-17 130 #define ioremap_nocache(X,Y) ioremap((X),(Y))
428695b8 include/asm-sparc/io_32.h David S. Miller 2008-07-22 131 #define ioremap_wc(X,Y) ioremap((X),(Y))
556269c1 arch/sparc/include/asm/io_32.h Toshi Kani 2015-06-04 132 #define ioremap_wt(X,Y) ioremap((X),(Y))
f05a6865 arch/sparc/include/asm/io_32.h Sam Ravnborg 2014-05-16 133 void iounmap(volatile void __iomem *addr);
f5e706ad include/asm-sparc/io_32.h Sam Ravnborg 2008-07-17 134

:::::: The code at line 129 was first introduced by commit
:::::: f05a68653e56ca2f23bccf7e50be69486886f052 sparc: drop use of extern for prototypes in arch/sparc/include/asm

:::::: TO: Sam Ravnborg <sam@xxxxxxxxxxxx>
:::::: CC: David S. Miller <davem@xxxxxxxxxxxxx>

---
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