tree: https://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc.git topic-zol-remove head: f2709e461ce51e131e57d07a45a634f3b79b5298 commit: 0ce72856d001ca4a343064d9d909d454aba4a597 [70/187] ARCv3: 64-bit io accesses config: arc-randconfig-s032-20211019 (attached as .config) compiler: arceb-elf-gcc (GCC) 11.2.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # apt-get install sparse # sparse version: v0.6.4-dirty # https://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc.git/commit/?id... git remote add vgupta-arc https://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc.git git fetch --no-tags vgupta-arc topic-zol-remove git checkout 0ce72856d001ca4a343064d9d909d454aba4a597 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=arc If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; sparse warnings: (new ones prefixed by >>) drivers/char/ipmi/ipmi_si_mem_io.c: note: in included file (through include/linux/io.h): arch/arc/include/asm/io.h:67:43: sparse: expected unsigned short const volatile [usertype] *ptr arch/arc/include/asm/io.h:67:43: sparse: got void const volatile [noderef] __iomem *addr arch/arc/include/asm/io.h:82:43: sparse: expected unsigned int const volatile [usertype] *ptr arch/arc/include/asm/io.h:82:43: sparse: got void const volatile [noderef] __iomem *addr arch/arc/include/asm/io.h:52:42: sparse: expected unsigned char const volatile [usertype] *ptr arch/arc/include/asm/io.h:52:42: sparse: got void const volatile [noderef] __iomem *addr arch/arc/include/asm/io.h:152:42: sparse: expected unsigned char const volatile [usertype] *ptr arch/arc/include/asm/io.h:152:42: sparse: got void volatile [noderef] __iomem *addr arch/arc/include/asm/io.h:67:43: sparse: expected unsigned short const volatile [usertype] *ptr arch/arc/include/asm/io.h:67:43: sparse: got void const volatile [noderef] __iomem *addr arch/arc/include/asm/io.h:152:42: sparse: expected unsigned char const volatile [usertype] *ptr arch/arc/include/asm/io.h:152:42: sparse: got void volatile [noderef] __iomem *addr arch/arc/include/asm/io.h:82:43: sparse: expected unsigned int const volatile [usertype] *ptr arch/arc/include/asm/io.h:82:43: sparse: got void const volatile [noderef] __iomem *addr arch/arc/include/asm/io.h:176:43: sparse: expected unsigned int const volatile [usertype] *ptr arch/arc/include/asm/io.h:176:43: sparse: got void volatile [noderef] __iomem *addr -- drivers/char/ipmi/ipmi_si_port_io.c: note: in included file (through include/linux/io.h): arch/arc/include/asm/io.h:52:42: sparse: expected unsigned char const volatile [usertype] *ptr arch/arc/include/asm/io.h:52:42: sparse: got void const volatile [noderef] __iomem *addr arch/arc/include/asm/io.h:152:42: sparse: expected unsigned char const volatile [usertype] *ptr arch/arc/include/asm/io.h:152:42: sparse: got void volatile [noderef] __iomem *addr arch/arc/include/asm/io.h:67:43: sparse: expected unsigned short const volatile [usertype] *ptr arch/arc/include/asm/io.h:67:43: sparse: got void const volatile [noderef] __iomem *addr arch/arc/include/asm/io.h:67:43: sparse: expected unsigned short const volatile [usertype] *ptr arch/arc/include/asm/io.h:67:43: sparse: got void const volatile [noderef] __iomem *addr arch/arc/include/asm/io.h:164:43: sparse: expected unsigned short const volatile [usertype] *ptr arch/arc/include/asm/io.h:164:43: sparse: got void volatile [noderef] __iomem *addr arch/arc/include/asm/io.h:82:43: sparse: expected unsigned int const volatile [usertype] *ptr arch/arc/include/asm/io.h:82:43: sparse: got void const volatile [noderef] __iomem *addr arch/arc/include/asm/io.h:82:43: sparse: expected unsigned int const volatile [usertype] *ptr arch/arc/include/asm/io.h:82:43: sparse: got void const volatile [noderef] __iomem *addr arch/arc/include/asm/io.h:176:43: sparse: expected unsigned int const volatile [usertype] *ptr arch/arc/include/asm/io.h:176:43: sparse: got void volatile [noderef] __iomem *addr -- drivers/mtd/maps/map_funcs.c: note: in included file (through include/linux/io.h, include/linux/mtd/map.h): arch/arc/include/asm/io.h:52:42: sparse: expected unsigned char const volatile [usertype] *ptr arch/arc/include/asm/io.h:52:42: sparse: got void const volatile [noderef] __iomem *addr arch/arc/include/asm/io.h:67:43: sparse: expected unsigned short const volatile [usertype] *ptr arch/arc/include/asm/io.h:67:43: sparse: got void const volatile [noderef] __iomem *addr arch/arc/include/asm/io.h:82:43: sparse: expected unsigned int const volatile [usertype] *ptr arch/arc/include/asm/io.h:82:43: sparse: got void const volatile [noderef] __iomem *addr arch/arc/include/asm/io.h:152:42: sparse: expected unsigned char const volatile [usertype] *ptr arch/arc/include/asm/io.h:152:42: sparse: got void volatile [noderef] __iomem *addr arch/arc/include/asm/io.h:164:43: sparse: expected unsigned short const volatile [usertype] *ptr arch/arc/include/asm/io.h:164:43: sparse: got void volatile [noderef] __iomem *addr arch/arc/include/asm/io.h:176:43: sparse: expected unsigned int const volatile [usertype] *ptr arch/arc/include/asm/io.h:176:43: sparse: got void volatile [noderef] __iomem *addr -- drivers/mtd/maps/physmap-gemini.c: note: in included file (through include/linux/io.h, include/linux/mtd/map.h): arch/arc/include/asm/io.h:52:42: sparse: expected unsigned char const volatile [usertype] *ptr arch/arc/include/asm/io.h:52:42: sparse: got void const volatile [noderef] __iomem *addr arch/arc/include/asm/io.h:67:43: sparse: expected unsigned short const volatile [usertype] *ptr arch/arc/include/asm/io.h:67:43: sparse: got void const volatile [noderef] __iomem *addr arch/arc/include/asm/io.h:82:43: sparse: expected unsigned int const volatile [usertype] *ptr arch/arc/include/asm/io.h:82:43: sparse: got void const volatile [noderef] __iomem *addr arch/arc/include/asm/io.h:152:42: sparse: expected unsigned char const volatile [usertype] *ptr arch/arc/include/asm/io.h:152:42: sparse: got void volatile [noderef] __iomem *addr arch/arc/include/asm/io.h:164:43: sparse: expected unsigned short const volatile [usertype] *ptr arch/arc/include/asm/io.h:164:43: sparse: got void volatile [noderef] __iomem *addr arch/arc/include/asm/io.h:176:43: sparse: expected unsigned int const volatile [usertype] *ptr arch/arc/include/asm/io.h:176:43: sparse: got void volatile [noderef] __iomem *addr -- drivers/mtd/maps/physmap-versatile.c: note: in included file (through include/linux/io.h): arch/arc/include/asm/io.h:82:43: sparse: expected unsigned int const volatile [usertype] *ptr arch/arc/include/asm/io.h:82:43: sparse: got void const volatile [noderef] __iomem *addr arch/arc/include/asm/io.h:176:43: sparse: expected unsigned int const volatile [usertype] *ptr arch/arc/include/asm/io.h:176:43: sparse: got void volatile [noderef] __iomem *addr arch/arc/include/asm/io.h:82:43: sparse: expected unsigned int const volatile [usertype] *ptr arch/arc/include/asm/io.h:82:43: sparse: got void const volatile [noderef] __iomem *addr arch/arc/include/asm/io.h:176:43: sparse: expected unsigned int const volatile [usertype] *ptr arch/arc/include/asm/io.h:176:43: sparse: got void volatile [noderef] __iomem *addr arch/arc/include/asm/io.h:176:43: sparse: expected unsigned int const volatile [usertype] *ptr arch/arc/include/asm/io.h:176:43: sparse: got void volatile [noderef] __iomem *addr -- drivers/gpu/drm/bridge/synopsys/dw-hdmi-ahb-audio.c: note: in included file (through include/linux/io.h): arch/arc/include/asm/io.h:152:42: sparse: expected unsigned char const volatile [usertype] *ptr arch/arc/include/asm/io.h:152:42: sparse: got void volatile [noderef] __iomem *addr arch/arc/include/asm/io.h:152:42: sparse: expected unsigned char const volatile [usertype] *ptr arch/arc/include/asm/io.h:152:42: sparse: got void volatile [noderef] __iomem *addr arch/arc/include/asm/io.h:152:42: sparse: expected unsigned char const volatile [usertype] *ptr arch/arc/include/asm/io.h:152:42: sparse: got void volatile [noderef] __iomem *addr arch/arc/include/asm/io.h:152:42: sparse: expected unsigned char const volatile [usertype] *ptr arch/arc/include/asm/io.h:152:42: sparse: got void volatile [noderef] __iomem *addr arch/arc/include/asm/io.h:152:42: sparse: expected unsigned char const volatile [usertype] *ptr arch/arc/include/asm/io.h:152:42: sparse: got void volatile [noderef] __iomem *addr drivers/gpu/drm/bridge/synopsys/dw-hdmi-ahb-audio.c:253:9: sparse: sparse: cast truncates bits from constant value (ffffff7f becomes 7f) arch/arc/include/asm/io.h:152:42: sparse: expected unsigned char const volatile [usertype] *ptr arch/arc/include/asm/io.h:152:42: sparse: got void volatile [noderef] __iomem *addr arch/arc/include/asm/io.h:152:42: sparse: expected unsigned char const volatile [usertype] *ptr arch/arc/include/asm/io.h:152:42: sparse: got void volatile [noderef] __iomem *addr arch/arc/include/asm/io.h:152:42: sparse: expected unsigned char const volatile [usertype] *ptr arch/arc/include/asm/io.h:152:42: sparse: got void volatile [noderef] __iomem *addr arch/arc/include/asm/io.h:152:42: sparse: expected unsigned char const volatile [usertype] *ptr arch/arc/include/asm/io.h:152:42: sparse: got void volatile [noderef] __iomem *addr arch/arc/include/asm/io.h:52:42: sparse: expected unsigned char const volatile [usertype] *ptr arch/arc/include/asm/io.h:52:42: sparse: got void const volatile [noderef] __iomem *addr arch/arc/include/asm/io.h:152:42: sparse: expected unsigned char const volatile [usertype] *ptr arch/arc/include/asm/io.h:152:42: sparse: got void volatile [noderef] __iomem *addr arch/arc/include/asm/io.h:152:42: sparse: expected unsigned char const volatile [usertype] *ptr arch/arc/include/asm/io.h:152:42: sparse: got void volatile [noderef] __iomem *addr arch/arc/include/asm/io.h:152:42: sparse: expected unsigned char const volatile [usertype] *ptr arch/arc/include/asm/io.h:152:42: sparse: got void volatile [noderef] __iomem *addr arch/arc/include/asm/io.h:152:42: sparse: expected unsigned char const volatile [usertype] *ptr arch/arc/include/asm/io.h:152:42: sparse: got void volatile [noderef] __iomem *addr arch/arc/include/asm/io.h:152:42: sparse: expected unsigned char const volatile [usertype] *ptr arch/arc/include/asm/io.h:152:42: sparse: got void volatile [noderef] __iomem *addr arch/arc/include/asm/io.h:152:42: sparse: expected unsigned char const volatile [usertype] *ptr arch/arc/include/asm/io.h:152:42: sparse: got void volatile [noderef] __iomem *addr arch/arc/include/asm/io.h:152:42: sparse: expected unsigned char const volatile [usertype] *ptr arch/arc/include/asm/io.h:152:42: sparse: got void volatile [noderef] __iomem *addr arch/arc/include/asm/io.h:152:42: sparse: expected unsigned char const volatile [usertype] *ptr arch/arc/include/asm/io.h:152:42: sparse: got void volatile [noderef] __iomem *addr arch/arc/include/asm/io.h:152:42: sparse: expected unsigned char const volatile [usertype] *ptr arch/arc/include/asm/io.h:152:42: sparse: got void volatile [noderef] __iomem *addr arch/arc/include/asm/io.h:152:42: sparse: expected unsigned char const volatile [usertype] *ptr arch/arc/include/asm/io.h:152:42: sparse: got void volatile [noderef] __iomem *addr arch/arc/include/asm/io.h:152:42: sparse: expected unsigned char const volatile [usertype] *ptr arch/arc/include/asm/io.h:152:42: sparse: got void volatile [noderef] __iomem *addr arch/arc/include/asm/io.h:152:42: sparse: expected unsigned char const volatile [usertype] *ptr arch/arc/include/asm/io.h:152:42: sparse: got void volatile [noderef] __iomem *addr arch/arc/include/asm/io.h:52:42: sparse: expected unsigned char const volatile [usertype] *ptr arch/arc/include/asm/io.h:52:42: sparse: got void const volatile [noderef] __iomem *addr vim +67 arch/arc/include/asm/io.h 48 49 #define __raw_readb __raw_readb 50 static inline u8 __raw_readb(const volatile void __iomem *addr) 51 { 53 u8 b; 54 55 __asm__ __volatile__( 56 " ldb%U1 %0, %1 \n" 57 : "=r" (b) 58 : "m" (*ptr) 59 : "memory"); 60 61 return b; 62 } 63 64 #define __raw_readw __raw_readw 65 static inline u16 __raw_readw(const volatile void __iomem *addr) 66 { 68 u16 s; 69 70 __asm__ __volatile__( 71 " ldh%U1 %0, %1 \n" 72 : "=r" (s) 73 : "m" (*ptr) 74 : "memory"); 75 76 return s; 77 } 78 79 #define __raw_readl __raw_readl 80 static inline u32 __raw_readl(const volatile void __iomem *addr) 81 { 83 u32 w; 84 85 __asm__ __volatile__( 86 " ld%U1 %0, %1 \n" 87 : "=r" (w) 88 : "m" (*ptr) 89 : "memory"); 90 91 return w; 92 } 93 94 #ifdef CONFIG_64BIT 95 96 #define __raw_readq __raw_readq 97 static inline u32 __raw_readq(const volatile void __iomem *addr) 98 { 99 const volatile u64 __force *ptr = addr; 100 u64 q; 101 102 __asm__ __volatile__( 103 " ldl%U1 %0, %1 \n" 104 : "=r" (q) 105 : "m" (*ptr) 106 : "memory"); 107 108 return q; 109 } 110 111 #endif 112 113 /* 114 * {read,write}s{b,w,l}() repeatedly access the same IO address in 115 * native endianness in 8-, 16-, 32-bit chunks {into,from} memory, 116 * @count times 117 */ 118 #define __raw_readsx(t,f) \ 119 static inline void __raw_reads##f(const volatile void __iomem *addr, \ 120 void *ptr, unsigned int count) \ 121 { \ 122 bool is_aligned = ((unsigned long)ptr % ((t) / 8)) == 0; \ 123 u##t *buf = ptr; \ 124 \ 125 if (!count) \ 126 return; \ 127 \ 128 /* Some ARC CPU's don't support unaligned accesses */ \ 129 if (is_aligned) { \ 130 do { \ 131 u##t x = __raw_read##f(addr); \ 132 *buf++ = x; \ 133 } while (--count); \ 134 } else { \ 135 do { \ 136 u##t x = __raw_read##f(addr); \ 137 put_unaligned(x, buf++); \ 138 } while (--count); \ 139 } \ 140 } 141 142 #define __raw_readsb __raw_readsb 143 __raw_readsx(8, b) 144 #define __raw_readsw __raw_readsw 145 __raw_readsx(16, w) 146 #define __raw_readsl __raw_readsl 147 __raw_readsx(32, l) 148 149 #define __raw_writeb __raw_writeb 150 static inline void __raw_writeb(u8 b, volatile void __iomem *addr) 151 { 153 154 __asm__ __volatile__( 155 " stb%U1 %0, %1 \n" 156 : 157 : "r" (b), "m" (*ptr) 158 : "memory"); 159 } 160 161 #define __raw_writew __raw_writew 162 static inline void __raw_writew(u16 s, volatile void __iomem *addr) 163 { 165 166 __asm__ __volatile__( 167 " stw%U1 %0, %1 \n" 168 : 169 : "r" (s), "m" (*ptr) 170 : "memory"); 171 } 172 173 #define __raw_writel __raw_writel 174 static inline void __raw_writel(u32 w, volatile void __iomem *addr) 175 { 177 178 __asm__ __volatile__( 179 " st%U1 %0, %1 \n" 180 : 181 : "r" (w), "m" (*ptr) 182 : "memory"); 183 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org