Re: [PATCH v5 1/5] Consolidate __memcpy_{to,from}io and __memset_io into iomap_copy.c

kernel test robot
2024-09-25T01:01:53Z

Hi Julian,

kernel test robot noticed the following build errors:

[auto build test ERROR on arnd-asm-generic/master]
[also build test ERROR on soc/for-next akpm-mm/mm-nonmm-unstable arm64/for-next/core linus/master v6.11 next-20240924]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url: https://github.com/intel-lab-lkp/linux/commits/Julian-Vetter/Consolidate-__memcpy_-to-from-io-and-__memset_io-into-iomap_copy-c/20240924-202154
base: https://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic.git master
patch link: https://lore.kernel.org/r/20240924121432.798655-2-jvetter%40kalrayinc.com
patch subject: [PATCH v5 1/5] Consolidate __memcpy_{to,from}io and __memset_io into iomap_copy.c
config: arm-defconfig (https://download.01.org/0day-ci/archive/20240925/202409250806.Lq8C7QZr-lkp@intel.com/config)
compiler: clang version 14.0.6 (https://github.com/llvm/llvm-project f28c006a5895fc0e329fe15fead81e37457cb1d1)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240925/202409250806.Lq8C7QZr-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202409250806.Lq8C7QZr-lkp@intel.com/

All errors (new ones prefixed by >>):

>> lib/iomap_copy.c:89:19: error: implicit declaration of function 'IS_ALIGNED' is invalid in C99 [-Werror,-Wimplicit-function-declaration]
while (count && !IS_ALIGNED((unsigned long)from, NATIVE_STORE_SIZE)) {
^
lib/iomap_copy.c:121:19: error: implicit declaration of function 'IS_ALIGNED' is invalid in C99 [-Werror,-Wimplicit-function-declaration]
while (count && !IS_ALIGNED((unsigned long)to, NATIVE_STORE_SIZE)) {
^
lib/iomap_copy.c:161:19: error: implicit declaration of function 'IS_ALIGNED' is invalid in C99 [-Werror,-Wimplicit-function-declaration]
while (count && !IS_ALIGNED((unsigned long)dst, NATIVE_STORE_SIZE)) {
^
3 errors generated.

vim +/IS_ALIGNED +89 lib/iomap_copy.c

84
85
86 #ifndef __memcpy_fromio
87 void __memcpy_fromio(void *to, const volatile void __iomem *from, size_t count)
88 {
> 89 while (count && !IS_ALIGNED((unsigned long)from, NATIVE_STORE_SIZE)) {
90 *(u8 *)to = __raw_readb(from);
91 from++;
92 to++;
93 count--;
94 }
95
96 while (count >= NATIVE_STORE_SIZE) {
97 #ifdef CONFIG_64BIT
98 put_unaligned(__raw_readq(from), (uintptr_t *)to);
99 #else
100 put_unaligned(__raw_readl(from), (uintptr_t *)to);
101 #endif
102
103 from += NATIVE_STORE_SIZE;
104 to += NATIVE_STORE_SIZE;
105 count -= NATIVE_STORE_SIZE;
106 }
107
108 while (count) {
109 *(u8 *)to = __raw_readb(from);
110 from++;
111 to++;
112 count--;
113 }
114 }
115 EXPORT_SYMBOL(__memcpy_fromio);
116 #endif
117

--
0-DAY CI Kernel Test Service