Re: [PATCH v2 08/11] parisc: mm: Convert to GENERIC_IOREMAP

kernel test robot
2022-08-20T04:05:52Z

Hi Baoquan,

I love your patch! Yet something to improve:

[auto build test ERROR on akpm-mm/mm-everything]

url: https://github.com/intel-lab-lkp/linux/commits/Baoquan-He/mm-ioremap-Convert-architectures-to-take-GENERIC_IOREMAP-way/20220820-083435
base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything
config: parisc-randconfig-r005-20220820 (https://download.01.org/0day-ci/archive/20220820/202208201135.YyN9CXsu-lkp@intel.com/config)
compiler: hppa-linux-gcc (GCC) 12.1.0
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
# https://github.com/intel-lab-lkp/linux/commit/570f2a3347cc83c9ea71d3dbbebfad8ea085ecc6
git remote add linux-review https://github.com/intel-lab-lkp/linux
git fetch --no-tags linux-review Baoquan-He/mm-ioremap-Convert-architectures-to-take-GENERIC_IOREMAP-way/20220820-083435
git checkout 570f2a3347cc83c9ea71d3dbbebfad8ea085ecc6
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=parisc prepare

If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@intel.com>

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

In file included from arch/parisc/include/asm/io.h:315,
from include/linux/io.h:13,
from include/linux/irq.h:20,
from arch/parisc/include/asm/hardirq.h:13,
from include/linux/hardirq.h:11,
from arch/parisc/kernel/asm-offsets.c:21:
>> include/asm-generic/iomap.h:97: warning: "ioremap_wc" redefined
97 | #define ioremap_wc ioremap
|
arch/parisc/include/asm/io.h:135: note: this is the location of the previous definition
135 | #define ioremap_wc(addr, size) \
|
include/linux/io.h: In function 'pci_remap_cfgspace':
>> include/linux/io.h:89:44: error: implicit declaration of function 'ioremap'; did you mean 'ioremap_np'? [-Werror=implicit-function-declaration]
89 | return ioremap_np(offset, size) ?: ioremap(offset, size);
| ^~~~~~~
| ioremap_np
>> include/linux/io.h:89:42: warning: pointer/integer type mismatch in conditional expression
89 | return ioremap_np(offset, size) ?: ioremap(offset, size);
| ^
cc1: some warnings being treated as errors
make[2]: *** [scripts/Makefile.build:117: arch/parisc/kernel/asm-offsets.s] Error 1
make[2]: Target '__build' not remade because of errors.
make[1]: *** [Makefile:1207: prepare0] Error 2
make[1]: Target 'prepare' not remade because of errors.
make: *** [Makefile:222: __sub-make] Error 2
make: Target 'prepare' not remade because of errors.

vim +89 include/linux/io.h

7d3dcf26a6559f Christoph Hellwig 2015-08-10 72
cf9ea8ca4a0bea Lorenzo Pieralisi 2017-04-19 73 #ifdef CONFIG_PCI
cf9ea8ca4a0bea Lorenzo Pieralisi 2017-04-19 74 /*
cf9ea8ca4a0bea Lorenzo Pieralisi 2017-04-19 75 * The PCI specifications (Rev 3.0, 3.2.5 "Transaction Ordering and
b10eb2d50911f9 Hector Martin 2021-03-25 76 * Posting") mandate non-posted configuration transactions. This default
b10eb2d50911f9 Hector Martin 2021-03-25 77 * implementation attempts to use the ioremap_np() API to provide this
b10eb2d50911f9 Hector Martin 2021-03-25 78 * on arches that support it, and falls back to ioremap() on those that
b10eb2d50911f9 Hector Martin 2021-03-25 79 * don't. Overriding this function is deprecated; arches that properly
b10eb2d50911f9 Hector Martin 2021-03-25 80 * support non-posted accesses should implement ioremap_np() instead, which
b10eb2d50911f9 Hector Martin 2021-03-25 81 * this default implementation can then use to return mappings compliant with
b10eb2d50911f9 Hector Martin 2021-03-25 82 * the PCI specification.
cf9ea8ca4a0bea Lorenzo Pieralisi 2017-04-19 83 */
cf9ea8ca4a0bea Lorenzo Pieralisi 2017-04-19 84 #ifndef pci_remap_cfgspace
cf9ea8ca4a0bea Lorenzo Pieralisi 2017-04-19 85 #define pci_remap_cfgspace pci_remap_cfgspace
cf9ea8ca4a0bea Lorenzo Pieralisi 2017-04-19 86 static inline void __iomem *pci_remap_cfgspace(phys_addr_t offset,
cf9ea8ca4a0bea Lorenzo Pieralisi 2017-04-19 87 size_t size)
cf9ea8ca4a0bea Lorenzo Pieralisi 2017-04-19 88 {
b10eb2d50911f9 Hector Martin 2021-03-25 @89 return ioremap_np(offset, size) ?: ioremap(offset, size);
cf9ea8ca4a0bea Lorenzo Pieralisi 2017-04-19 90 }
cf9ea8ca4a0bea Lorenzo Pieralisi 2017-04-19 91 #endif
cf9ea8ca4a0bea Lorenzo Pieralisi 2017-04-19 92 #endif
cf9ea8ca4a0bea Lorenzo Pieralisi 2017-04-19 93

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