* [sbates130272-p2pmem:p2pdma_user_cmb_v8 5/21] kernel/dma/direct.c:467:7: error: call to undeclared function 'sg_is_dma_bus_address'; ISO C99 and later do not support implicit function declarations
@ 2022-07-07 4:15 kernel test robot
0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2022-07-07 4:15 UTC (permalink / raw)
To: Logan Gunthorpe; +Cc: llvm, kbuild-all, linux-kernel, Christoph Hellwig
tree: https://github.com/sbates130272/linux-p2pmem.git p2pdma_user_cmb_v8
head: a2dd359c3f1baca6c0438adec8900b7fe57f92af
commit: 8d3e7a5dd204152609cd4eee448224f071493784 [5/21] dma-direct: support PCI P2PDMA pages in dma-direct map_sg
config: s390-randconfig-r044-20220706 (https://download.01.org/0day-ci/archive/20220707/202207071200.km0YZBTu-lkp@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 66ae1d60bb278793fd651cece264699d522bab84)
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 s390 cross compiling tool for clang build
# apt-get install binutils-s390x-linux-gnu
# https://github.com/sbates130272/linux-p2pmem/commit/8d3e7a5dd204152609cd4eee448224f071493784
git remote add sbates130272-p2pmem https://github.com/sbates130272/linux-p2pmem.git
git fetch --no-tags sbates130272-p2pmem p2pdma_user_cmb_v8
git checkout 8d3e7a5dd204152609cd4eee448224f071493784
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=s390 SHELL=/bin/bash kernel/dma/
If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@intel.com>
All errors (new ones prefixed by >>):
In file included from kernel/dma/direct.c:7:
In file included from include/linux/memblock.h:13:
In file included from arch/s390/include/asm/dma.h:5:
In file included from arch/s390/include/asm/io.h:75:
include/asm-generic/io.h:464:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
val = __raw_readb(PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:477:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr));
~~~~~~~~~~ ^
include/uapi/linux/byteorder/big_endian.h:37:59: note: expanded from macro '__le16_to_cpu'
#define __le16_to_cpu(x) __swab16((__force __u16)(__le16)(x))
^
include/uapi/linux/swab.h:102:54: note: expanded from macro '__swab16'
#define __swab16(x) (__u16)__builtin_bswap16((__u16)(x))
^
In file included from kernel/dma/direct.c:7:
In file included from include/linux/memblock.h:13:
In file included from arch/s390/include/asm/dma.h:5:
In file included from arch/s390/include/asm/io.h:75:
include/asm-generic/io.h:490:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr));
~~~~~~~~~~ ^
include/uapi/linux/byteorder/big_endian.h:35:59: note: expanded from macro '__le32_to_cpu'
#define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x))
^
include/uapi/linux/swab.h:115:54: note: expanded from macro '__swab32'
#define __swab32(x) (__u32)__builtin_bswap32((__u32)(x))
^
In file included from kernel/dma/direct.c:7:
In file included from include/linux/memblock.h:13:
In file included from arch/s390/include/asm/dma.h:5:
In file included from arch/s390/include/asm/io.h:75:
include/asm-generic/io.h:501:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
__raw_writeb(value, PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:511:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
__raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:521:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
__raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:609:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
readsb(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:617:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
readsw(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:625:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
readsl(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:634:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
writesb(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:643:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
writesw(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:652:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
writesl(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
>> kernel/dma/direct.c:467:7: error: call to undeclared function 'sg_is_dma_bus_address'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
if (sg_is_dma_bus_address(sg))
^
>> kernel/dma/direct.c:468:4: error: call to undeclared function 'sg_dma_unmark_bus_address'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
sg_dma_unmark_bus_address(sg);
^
12 warnings and 2 errors generated.
vim +/sg_is_dma_bus_address +467 kernel/dma/direct.c
455
456 /*
457 * Unmaps segments, except for ones marked as pci_p2pdma which do not
458 * require any further action as they contain a bus address.
459 */
460 void dma_direct_unmap_sg(struct device *dev, struct scatterlist *sgl,
461 int nents, enum dma_data_direction dir, unsigned long attrs)
462 {
463 struct scatterlist *sg;
464 int i;
465
466 for_each_sg(sgl, sg, nents, i) {
> 467 if (sg_is_dma_bus_address(sg))
> 468 sg_dma_unmark_bus_address(sg);
469 else
470 dma_direct_unmap_page(dev, sg->dma_address,
471 sg_dma_len(sg), dir, attrs);
472 }
473 }
474 #endif
475
--
0-DAY CI Kernel Test Service
https://01.org/lkp
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