Hi, [auto build test WARNING on v4.7-rc4] [cannot apply to arm64/for-next/core next-20160623] [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/Manjeet-Pawar/arm64-swiotlb-Enable-only-when-Input-size-through-command-line/20160623-205508 config: x86_64-randconfig-i0-201625 (attached as .config) compiler: gcc-6 (Debian 6.1.1-1) 6.1.1 20160430 reproduce: # save the attached .config to linux build tree make ARCH=x86_64 All warnings (new ones prefixed by >>): lib/swiotlb.c: In function 'setup_io_tlb_size': >> lib/swiotlb.c:131:30: warning: passing argument 2 of 'kstrtoul' makes >> integer from pointer without a cast [-Wint-conversion] swiotlb_sz = kstrtoul(str, &str, 0); ^ In file included from include/linux/list.h:8:0, from include/linux/kobject.h:20, from include/linux/device.h:17, from include/linux/dma-mapping.h:6, from lib/swiotlb.c:21: include/linux/kernel.h:298:32: note: expected 'unsigned int' but argument is of type 'char **' static inline int __must_check kstrtoul(const char *s, unsigned int base, unsigned long *res) ^~~~~~~~ vim +/kstrtoul +131 lib/swiotlb.c 115 116 return 0; 117 } 118 early_param("swiotlb", setup_io_tlb_npages); 119 120 static int __init 121 setup_io_tlb_size(char *str) 122 { 123 int len = strlen(str); 124 125 if (str[len-1] == 'M') 126 swiotlb_sz_shift = 20; 127 else if (str[len-1] == 'K') 128 swiotlb_sz_shift = 10; 129 str[len-1] = '\0'; 130 if (isdigit(*str)) > 131 swiotlb_sz = kstrtoul(str, &str, 0); 132 133 swiotlb_enabled = 1; 134 return 0; 135 } 136 early_param("swiotlb_sz", setup_io_tlb_size); 137 /* make io_tlb_overflow tunable too? */ 138 139 unsigned long swiotlb_nr_tbl(void) --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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