[Intel-wired-lan] [jkirsher-next-queue:dev-queue 8/35] include/linux/prefetch.h:65:49: warning: declaration of 'struct page' will not be visible outside of this function
kernel test robot
lkp at intel.com
Tue Aug 11 20:42:10 UTC 2020
tree: https://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue.git dev-queue
head: 1e38a2ae2ca4c1d7c81e5620e5c43e69c2c79854
commit: c2b9f24be5de6d9737de68d2d75ae3bc81f9b7db [8/35] i40e: optimise prefetch page refcount
config: arm-randconfig-r003-20200811 (attached as .config)
compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project 4f2ad15db535873dda9bfe248a2771023b64a43c)
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# install arm cross compiling tool for clang build
# apt-get install binutils-arm-linux-gnueabi
git checkout c2b9f24be5de6d9737de68d2d75ae3bc81f9b7db
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=arm
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp at intel.com>
All warnings (new ones prefixed by >>):
In file included from kernel/bounds.c:10:
In file included from include/linux/page-flags.h:10:
In file included from include/linux/bug.h:5:
In file included from arch/arm/include/asm/bug.h:60:
In file included from include/asm-generic/bug.h:20:
In file included from include/linux/kernel.h:12:
In file included from include/linux/bitops.h:29:
In file included from arch/arm/include/asm/bitops.h:243:
In file included from include/asm-generic/bitops/lock.h:5:
In file included from include/linux/atomic.h:7:
In file included from arch/arm/include/asm/atomic.h:12:
>> include/linux/prefetch.h:65:49: warning: declaration of 'struct page' will not be visible outside of this function [-Wvisibility]
static inline void prefetch_page_address(struct page *page)
^
1 warning generated.
--
In file included from arch/arm/kernel/asm-offsets.c:11:
In file included from include/linux/sched.h:12:
In file included from ./arch/arm/include/generated/asm/current.h:1:
In file included from include/asm-generic/current.h:5:
In file included from include/linux/thread_info.h:12:
In file included from include/linux/bug.h:5:
In file included from arch/arm/include/asm/bug.h:60:
In file included from include/asm-generic/bug.h:20:
In file included from include/linux/kernel.h:12:
In file included from include/linux/bitops.h:29:
In file included from arch/arm/include/asm/bitops.h:243:
In file included from include/asm-generic/bitops/lock.h:5:
In file included from include/linux/atomic.h:7:
In file included from arch/arm/include/asm/atomic.h:12:
>> include/linux/prefetch.h:65:49: warning: declaration of 'struct page' will not be visible outside of this function [-Wvisibility]
static inline void prefetch_page_address(struct page *page)
^
In file included from arch/arm/kernel/asm-offsets.c:13:
In file included from include/linux/dma-mapping.h:11:
In file included from include/linux/scatterlist.h:9:
In file included from arch/arm/include/asm/io.h:438:
include/asm-generic/io.h:660:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
insb(addr, buffer, count);
^~~~~~~~~~~~~~~~~~~~~~~~~
arch/arm/mach-s3c24xx/include/mach/io.h:204:34: note: expanded from macro 'insb'
#define insb(p,d,l) __raw_readsb(__ioaddr(p),d,l)
^~~~~~~~~~~
arch/arm/mach-s3c24xx/include/mach/io.h:202:65: note: expanded from macro '__ioaddr'
#define __ioaddr(p) (__builtin_constant_p((p)) ? __ioaddr(p) : __ioaddrc(p))
^~~~~~~~~~~~
arch/arm/mach-s3c24xx/include/mach/io.h:194:86: note: expanded from macro '__ioaddrc'
#define __ioaddrc(port) ((__PORT_PCIO(port) ? PCIO_BASE + (port) : (void __iomem *)0 + (port)))
~~~~~~~~~~~~~~~~~ ^
In file included from arch/arm/kernel/asm-offsets.c:13:
In file included from include/linux/dma-mapping.h:11:
In file included from include/linux/scatterlist.h:9:
In file included from arch/arm/include/asm/io.h:438:
include/asm-generic/io.h:668:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
insw(addr, buffer, count);
^~~~~~~~~~~~~~~~~~~~~~~~~
arch/arm/mach-s3c24xx/include/mach/io.h:205:34: note: expanded from macro 'insw'
#define insw(p,d,l) __raw_readsw(__ioaddr(p),d,l)
^~~~~~~~~~~
arch/arm/mach-s3c24xx/include/mach/io.h:202:65: note: expanded from macro '__ioaddr'
#define __ioaddr(p) (__builtin_constant_p((p)) ? __ioaddr(p) : __ioaddrc(p))
^~~~~~~~~~~~
arch/arm/mach-s3c24xx/include/mach/io.h:194:86: note: expanded from macro '__ioaddrc'
#define __ioaddrc(port) ((__PORT_PCIO(port) ? PCIO_BASE + (port) : (void __iomem *)0 + (port)))
~~~~~~~~~~~~~~~~~ ^
In file included from arch/arm/kernel/asm-offsets.c:13:
In file included from include/linux/dma-mapping.h:11:
In file included from include/linux/scatterlist.h:9:
In file included from arch/arm/include/asm/io.h:438:
include/asm-generic/io.h:676:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
insl(addr, buffer, count);
^~~~~~~~~~~~~~~~~~~~~~~~~
arch/arm/mach-s3c24xx/include/mach/io.h:206:34: note: expanded from macro 'insl'
#define insl(p,d,l) __raw_readsl(__ioaddr(p),d,l)
^~~~~~~~~~~
arch/arm/mach-s3c24xx/include/mach/io.h:202:65: note: expanded from macro '__ioaddr'
#define __ioaddr(p) (__builtin_constant_p((p)) ? __ioaddr(p) : __ioaddrc(p))
^~~~~~~~~~~~
arch/arm/mach-s3c24xx/include/mach/io.h:194:86: note: expanded from macro '__ioaddrc'
#define __ioaddrc(port) ((__PORT_PCIO(port) ? PCIO_BASE + (port) : (void __iomem *)0 + (port)))
~~~~~~~~~~~~~~~~~ ^
In file included from arch/arm/kernel/asm-offsets.c:13:
In file included from include/linux/dma-mapping.h:11:
In file included from include/linux/scatterlist.h:9:
In file included from arch/arm/include/asm/io.h:438:
include/asm-generic/io.h:685:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
outsb(addr, buffer, count);
^~~~~~~~~~~~~~~~~~~~~~~~~~
arch/arm/mach-s3c24xx/include/mach/io.h:208:36: note: expanded from macro 'outsb'
#define outsb(p,d,l) __raw_writesb(__ioaddr(p),d,l)
^~~~~~~~~~~
arch/arm/mach-s3c24xx/include/mach/io.h:202:65: note: expanded from macro '__ioaddr'
#define __ioaddr(p) (__builtin_constant_p((p)) ? __ioaddr(p) : __ioaddrc(p))
^~~~~~~~~~~~
arch/arm/mach-s3c24xx/include/mach/io.h:194:86: note: expanded from macro '__ioaddrc'
#define __ioaddrc(port) ((__PORT_PCIO(port) ? PCIO_BASE + (port) : (void __iomem *)0 + (port)))
~~~~~~~~~~~~~~~~~ ^
In file included from arch/arm/kernel/asm-offsets.c:13:
In file included from include/linux/dma-mapping.h:11:
In file included from include/linux/scatterlist.h:9:
In file included from arch/arm/include/asm/io.h:438:
include/asm-generic/io.h:694:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
outsw(addr, buffer, count);
^~~~~~~~~~~~~~~~~~~~~~~~~~
arch/arm/mach-s3c24xx/include/mach/io.h:209:36: note: expanded from macro 'outsw'
#define outsw(p,d,l) __raw_writesw(__ioaddr(p),d,l)
^~~~~~~~~~~
arch/arm/mach-s3c24xx/include/mach/io.h:202:65: note: expanded from macro '__ioaddr'
#define __ioaddr(p) (__builtin_constant_p((p)) ? __ioaddr(p) : __ioaddrc(p))
^~~~~~~~~~~~
arch/arm/mach-s3c24xx/include/mach/io.h:194:86: note: expanded from macro '__ioaddrc'
#define __ioaddrc(port) ((__PORT_PCIO(port) ? PCIO_BASE + (port) : (void __iomem *)0 + (port)))
~~~~~~~~~~~~~~~~~ ^
In file included from arch/arm/kernel/asm-offsets.c:13:
In file included from include/linux/dma-mapping.h:11:
In file included from include/linux/scatterlist.h:9:
In file included from arch/arm/include/asm/io.h:438:
include/asm-generic/io.h:703:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
outsl(addr, buffer, count);
^~~~~~~~~~~~~~~~~~~~~~~~~~
arch/arm/mach-s3c24xx/include/mach/io.h:210:36: note: expanded from macro 'outsl'
#define outsl(p,d,l) __raw_writesl(__ioaddr(p),d,l)
^~~~~~~~~~~
arch/arm/mach-s3c24xx/include/mach/io.h:202:65: note: expanded from macro '__ioaddr'
#define __ioaddr(p) (__builtin_constant_p((p)) ? __ioaddr(p) : __ioaddrc(p))
^~~~~~~~~~~~
arch/arm/mach-s3c24xx/include/mach/io.h:194:86: note: expanded from macro '__ioaddrc'
#define __ioaddrc(port) ((__PORT_PCIO(port) ? PCIO_BASE + (port) : (void __iomem *)0 + (port)))
~~~~~~~~~~~~~~~~~ ^
7 warnings generated.
--
In file included from net/ipv6/exthdrs.c:22:
In file included from include/linux/socket.h:8:
In file included from include/linux/uio.h:8:
In file included from include/linux/kernel.h:12:
In file included from include/linux/bitops.h:29:
In file included from arch/arm/include/asm/bitops.h:243:
In file included from include/asm-generic/bitops/lock.h:5:
In file included from include/linux/atomic.h:7:
In file included from arch/arm/include/asm/atomic.h:12:
>> include/linux/prefetch.h:65:49: warning: declaration of 'struct page' will not be visible outside of this function [-Wvisibility]
static inline void prefetch_page_address(struct page *page)
^
In file included from net/ipv6/exthdrs.c:25:
In file included from include/linux/netdevice.h:37:
In file included from include/linux/ethtool.h:18:
In file included from include/uapi/linux/ethtool.h:19:
In file included from include/linux/if_ether.h:19:
In file included from include/linux/skbuff.h:31:
In file included from include/linux/dma-mapping.h:11:
In file included from include/linux/scatterlist.h:9:
In file included from arch/arm/include/asm/io.h:438:
include/asm-generic/io.h:660:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
insb(addr, buffer, count);
^~~~~~~~~~~~~~~~~~~~~~~~~
arch/arm/mach-s3c24xx/include/mach/io.h:204:34: note: expanded from macro 'insb'
#define insb(p,d,l) __raw_readsb(__ioaddr(p),d,l)
^~~~~~~~~~~
arch/arm/mach-s3c24xx/include/mach/io.h:202:65: note: expanded from macro '__ioaddr'
#define __ioaddr(p) (__builtin_constant_p((p)) ? __ioaddr(p) : __ioaddrc(p))
^~~~~~~~~~~~
arch/arm/mach-s3c24xx/include/mach/io.h:194:86: note: expanded from macro '__ioaddrc'
#define __ioaddrc(port) ((__PORT_PCIO(port) ? PCIO_BASE + (port) : (void __iomem *)0 + (port)))
~~~~~~~~~~~~~~~~~ ^
In file included from net/ipv6/exthdrs.c:25:
In file included from include/linux/netdevice.h:37:
In file included from include/linux/ethtool.h:18:
In file included from include/uapi/linux/ethtool.h:19:
In file included from include/linux/if_ether.h:19:
In file included from include/linux/skbuff.h:31:
In file included from include/linux/dma-mapping.h:11:
In file included from include/linux/scatterlist.h:9:
In file included from arch/arm/include/asm/io.h:438:
include/asm-generic/io.h:668:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
insw(addr, buffer, count);
^~~~~~~~~~~~~~~~~~~~~~~~~
arch/arm/mach-s3c24xx/include/mach/io.h:205:34: note: expanded from macro 'insw'
#define insw(p,d,l) __raw_readsw(__ioaddr(p),d,l)
^~~~~~~~~~~
arch/arm/mach-s3c24xx/include/mach/io.h:202:65: note: expanded from macro '__ioaddr'
#define __ioaddr(p) (__builtin_constant_p((p)) ? __ioaddr(p) : __ioaddrc(p))
^~~~~~~~~~~~
arch/arm/mach-s3c24xx/include/mach/io.h:194:86: note: expanded from macro '__ioaddrc'
#define __ioaddrc(port) ((__PORT_PCIO(port) ? PCIO_BASE + (port) : (void __iomem *)0 + (port)))
~~~~~~~~~~~~~~~~~ ^
In file included from net/ipv6/exthdrs.c:25:
In file included from include/linux/netdevice.h:37:
In file included from include/linux/ethtool.h:18:
In file included from include/uapi/linux/ethtool.h:19:
In file included from include/linux/if_ether.h:19:
In file included from include/linux/skbuff.h:31:
In file included from include/linux/dma-mapping.h:11:
In file included from include/linux/scatterlist.h:9:
In file included from arch/arm/include/asm/io.h:438:
include/asm-generic/io.h:676:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
insl(addr, buffer, count);
^~~~~~~~~~~~~~~~~~~~~~~~~
arch/arm/mach-s3c24xx/include/mach/io.h:206:34: note: expanded from macro 'insl'
#define insl(p,d,l) __raw_readsl(__ioaddr(p),d,l)
^~~~~~~~~~~
arch/arm/mach-s3c24xx/include/mach/io.h:202:65: note: expanded from macro '__ioaddr'
#define __ioaddr(p) (__builtin_constant_p((p)) ? __ioaddr(p) : __ioaddrc(p))
^~~~~~~~~~~~
arch/arm/mach-s3c24xx/include/mach/io.h:194:86: note: expanded from macro '__ioaddrc'
#define __ioaddrc(port) ((__PORT_PCIO(port) ? PCIO_BASE + (port) : (void __iomem *)0 + (port)))
~~~~~~~~~~~~~~~~~ ^
In file included from net/ipv6/exthdrs.c:25:
In file included from include/linux/netdevice.h:37:
In file included from include/linux/ethtool.h:18:
In file included from include/uapi/linux/ethtool.h:19:
In file included from include/linux/if_ether.h:19:
In file included from include/linux/skbuff.h:31:
In file included from include/linux/dma-mapping.h:11:
In file included from include/linux/scatterlist.h:9:
In file included from arch/arm/include/asm/io.h:438:
include/asm-generic/io.h:685:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
outsb(addr, buffer, count);
^~~~~~~~~~~~~~~~~~~~~~~~~~
arch/arm/mach-s3c24xx/include/mach/io.h:208:36: note: expanded from macro 'outsb'
#define outsb(p,d,l) __raw_writesb(__ioaddr(p),d,l)
^~~~~~~~~~~
arch/arm/mach-s3c24xx/include/mach/io.h:202:65: note: expanded from macro '__ioaddr'
#define __ioaddr(p) (__builtin_constant_p((p)) ? __ioaddr(p) : __ioaddrc(p))
^~~~~~~~~~~~
arch/arm/mach-s3c24xx/include/mach/io.h:194:86: note: expanded from macro '__ioaddrc'
#define __ioaddrc(port) ((__PORT_PCIO(port) ? PCIO_BASE + (port) : (void __iomem *)0 + (port)))
~~~~~~~~~~~~~~~~~ ^
In file included from net/ipv6/exthdrs.c:25:
In file included from include/linux/netdevice.h:37:
In file included from include/linux/ethtool.h:18:
In file included from include/uapi/linux/ethtool.h:19:
In file included from include/linux/if_ether.h:19:
In file included from include/linux/skbuff.h:31:
In file included from include/linux/dma-mapping.h:11:
In file included from include/linux/scatterlist.h:9:
In file included from arch/arm/include/asm/io.h:438:
include/asm-generic/io.h:694:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
outsw(addr, buffer, count);
^~~~~~~~~~~~~~~~~~~~~~~~~~
arch/arm/mach-s3c24xx/include/mach/io.h:209:36: note: expanded from macro 'outsw'
#define outsw(p,d,l) __raw_writesw(__ioaddr(p),d,l)
--
In file included from net/core/dev.c:71:
In file included from include/linux/uaccess.h:6:
In file included from include/linux/sched.h:12:
In file included from ./arch/arm/include/generated/asm/current.h:1:
In file included from include/asm-generic/current.h:5:
In file included from include/linux/thread_info.h:12:
In file included from include/linux/bug.h:5:
In file included from arch/arm/include/asm/bug.h:60:
In file included from include/asm-generic/bug.h:20:
In file included from include/linux/kernel.h:12:
In file included from include/linux/bitops.h:29:
In file included from arch/arm/include/asm/bitops.h:243:
In file included from include/asm-generic/bitops/lock.h:5:
In file included from include/linux/atomic.h:7:
In file included from arch/arm/include/asm/atomic.h:12:
>> include/linux/prefetch.h:65:49: warning: declaration of 'struct page' will not be visible outside of this function [-Wvisibility]
static inline void prefetch_page_address(struct page *page)
^
In file included from net/core/dev.c:89:
In file included from include/linux/if_ether.h:19:
In file included from include/linux/skbuff.h:31:
In file included from include/linux/dma-mapping.h:11:
In file included from include/linux/scatterlist.h:9:
In file included from arch/arm/include/asm/io.h:438:
include/asm-generic/io.h:660:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
insb(addr, buffer, count);
^~~~~~~~~~~~~~~~~~~~~~~~~
arch/arm/mach-s3c24xx/include/mach/io.h:204:34: note: expanded from macro 'insb'
#define insb(p,d,l) __raw_readsb(__ioaddr(p),d,l)
^~~~~~~~~~~
arch/arm/mach-s3c24xx/include/mach/io.h:202:65: note: expanded from macro '__ioaddr'
#define __ioaddr(p) (__builtin_constant_p((p)) ? __ioaddr(p) : __ioaddrc(p))
^~~~~~~~~~~~
arch/arm/mach-s3c24xx/include/mach/io.h:194:86: note: expanded from macro '__ioaddrc'
#define __ioaddrc(port) ((__PORT_PCIO(port) ? PCIO_BASE + (port) : (void __iomem *)0 + (port)))
~~~~~~~~~~~~~~~~~ ^
In file included from net/core/dev.c:89:
In file included from include/linux/if_ether.h:19:
In file included from include/linux/skbuff.h:31:
In file included from include/linux/dma-mapping.h:11:
In file included from include/linux/scatterlist.h:9:
In file included from arch/arm/include/asm/io.h:438:
include/asm-generic/io.h:668:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
insw(addr, buffer, count);
^~~~~~~~~~~~~~~~~~~~~~~~~
arch/arm/mach-s3c24xx/include/mach/io.h:205:34: note: expanded from macro 'insw'
#define insw(p,d,l) __raw_readsw(__ioaddr(p),d,l)
^~~~~~~~~~~
arch/arm/mach-s3c24xx/include/mach/io.h:202:65: note: expanded from macro '__ioaddr'
#define __ioaddr(p) (__builtin_constant_p((p)) ? __ioaddr(p) : __ioaddrc(p))
^~~~~~~~~~~~
arch/arm/mach-s3c24xx/include/mach/io.h:194:86: note: expanded from macro '__ioaddrc'
#define __ioaddrc(port) ((__PORT_PCIO(port) ? PCIO_BASE + (port) : (void __iomem *)0 + (port)))
~~~~~~~~~~~~~~~~~ ^
In file included from net/core/dev.c:89:
In file included from include/linux/if_ether.h:19:
In file included from include/linux/skbuff.h:31:
In file included from include/linux/dma-mapping.h:11:
In file included from include/linux/scatterlist.h:9:
In file included from arch/arm/include/asm/io.h:438:
include/asm-generic/io.h:676:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
insl(addr, buffer, count);
^~~~~~~~~~~~~~~~~~~~~~~~~
arch/arm/mach-s3c24xx/include/mach/io.h:206:34: note: expanded from macro 'insl'
#define insl(p,d,l) __raw_readsl(__ioaddr(p),d,l)
^~~~~~~~~~~
arch/arm/mach-s3c24xx/include/mach/io.h:202:65: note: expanded from macro '__ioaddr'
#define __ioaddr(p) (__builtin_constant_p((p)) ? __ioaddr(p) : __ioaddrc(p))
^~~~~~~~~~~~
arch/arm/mach-s3c24xx/include/mach/io.h:194:86: note: expanded from macro '__ioaddrc'
#define __ioaddrc(port) ((__PORT_PCIO(port) ? PCIO_BASE + (port) : (void __iomem *)0 + (port)))
~~~~~~~~~~~~~~~~~ ^
In file included from net/core/dev.c:89:
In file included from include/linux/if_ether.h:19:
In file included from include/linux/skbuff.h:31:
In file included from include/linux/dma-mapping.h:11:
In file included from include/linux/scatterlist.h:9:
In file included from arch/arm/include/asm/io.h:438:
include/asm-generic/io.h:685:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
outsb(addr, buffer, count);
^~~~~~~~~~~~~~~~~~~~~~~~~~
arch/arm/mach-s3c24xx/include/mach/io.h:208:36: note: expanded from macro 'outsb'
#define outsb(p,d,l) __raw_writesb(__ioaddr(p),d,l)
^~~~~~~~~~~
arch/arm/mach-s3c24xx/include/mach/io.h:202:65: note: expanded from macro '__ioaddr'
#define __ioaddr(p) (__builtin_constant_p((p)) ? __ioaddr(p) : __ioaddrc(p))
^~~~~~~~~~~~
arch/arm/mach-s3c24xx/include/mach/io.h:194:86: note: expanded from macro '__ioaddrc'
#define __ioaddrc(port) ((__PORT_PCIO(port) ? PCIO_BASE + (port) : (void __iomem *)0 + (port)))
~~~~~~~~~~~~~~~~~ ^
In file included from net/core/dev.c:89:
In file included from include/linux/if_ether.h:19:
In file included from include/linux/skbuff.h:31:
In file included from include/linux/dma-mapping.h:11:
In file included from include/linux/scatterlist.h:9:
In file included from arch/arm/include/asm/io.h:438:
include/asm-generic/io.h:694:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
outsw(addr, buffer, count);
^~~~~~~~~~~~~~~~~~~~~~~~~~
arch/arm/mach-s3c24xx/include/mach/io.h:209:36: note: expanded from macro 'outsw'
#define outsw(p,d,l) __raw_writesw(__ioaddr(p),d,l)
^~~~~~~~~~~
arch/arm/mach-s3c24xx/include/mach/io.h:202:65: note: expanded from macro '__ioaddr'
#define __ioaddr(p) (__builtin_constant_p((p)) ? __ioaddr(p) : __ioaddrc(p))
^~~~~~~~~~~~
arch/arm/mach-s3c24xx/include/mach/io.h:194:86: note: expanded from macro '__ioaddrc'
#define __ioaddrc(port) ((__PORT_PCIO(port) ? PCIO_BASE + (port) : (void __iomem *)0 + (port)))
~~~~~~~~~~~~~~~~~ ^
In file included from net/core/dev.c:89:
In file included from include/linux/if_ether.h:19:
In file included from include/linux/skbuff.h:31:
In file included from include/linux/dma-mapping.h:11:
In file included from include/linux/scatterlist.h:9:
In file included from arch/arm/include/asm/io.h:438:
include/asm-generic/io.h:703:2: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
outsl(addr, buffer, count);
..
vim +65 include/linux/prefetch.h
64
> 65 static inline void prefetch_page_address(struct page *page)
66 {
67 #if defined(WANT_PAGE_VIRTUAL) || defined(HASHED_PAGE_VIRTUAL)
68 prefetch(page);
69 #endif
70 }
71
---
0-DAY CI Kernel Test Service, Intel Corporation
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