Hi Binbin, kernel test robot noticed the following build warnings: [auto build test WARNING on linus/master] [also build test WARNING on v6.13-rc5] [cannot apply to cminyard-ipmi/for-next lee-mfd/for-mfd-next lee-mfd/for-mfd-fixes next-20241220] [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/Binbin-Zhou/mfd-ls2kbmc-Introduce-Loongson-2K-BMC-MFD-Core-driver/20241230-174205 base: linus/master patch link: https://lore.kernel.org/r/a4cfdeed1a91a7a12c7ebe56bed2ba94991c4065.1735550269.git.zhoubinbin%40loongson.cn patch subject: [PATCH v1 2/4] ipmi: Add Loongson-2K BMC support config: loongarch-randconfig-r123-20241231 (https://download.01.org/0day-ci/archive/20241231/202412311950.Ij7v1vKv-lkp@xxxxxxxxx/config) compiler: loongarch64-linux-gcc (GCC) 14.2.0 reproduce: (https://download.01.org/0day-ci/archive/20241231/202412311950.Ij7v1vKv-lkp@xxxxxxxxx/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@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202412311950.Ij7v1vKv-lkp@xxxxxxxxx/ sparse warnings: (new ones prefixed by >>) >> drivers/char/ipmi/ipmi_si_ls2k.c:110:38: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct ls2k_kcs_data *ik @@ got void [noderef] __iomem *const addr @@ drivers/char/ipmi/ipmi_si_ls2k.c:110:38: sparse: expected struct ls2k_kcs_data *ik drivers/char/ipmi/ipmi_si_ls2k.c:110:38: sparse: got void [noderef] __iomem *const addr drivers/char/ipmi/ipmi_si_ls2k.c:168:38: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct ls2k_kcs_data *ik @@ got void [noderef] __iomem *const addr @@ drivers/char/ipmi/ipmi_si_ls2k.c:168:38: sparse: expected struct ls2k_kcs_data *ik drivers/char/ipmi/ipmi_si_ls2k.c:168:38: sparse: got void [noderef] __iomem *const addr >> drivers/char/ipmi/ipmi_si_ls2k.c:226:24: sparse: sparse: symbol 'ipmi_ls2k_platform_driver' was not declared. Should it be static? vim +110 drivers/char/ipmi/ipmi_si_ls2k.c 106 107 static unsigned char ls2k_mem_inb(const struct si_sm_io *io, 108 unsigned int offset) 109 { > 110 struct ls2k_kcs_data *ik = io->addr; 111 int inb = 0; 112 113 if (ik->version == 0) 114 inb = intf_sim_inb_v0(ik, offset); 115 else if (ik->version == 1) 116 inb = intf_sim_inb_v1(ik, offset); 117 118 return inb; 119 } 120 121 static void intf_sim_outb_v0(struct ls2k_kcs_data *ik, unsigned int offset, 122 unsigned char val) 123 { 124 if (ls2k_get_ibf(ik)) 125 return; 126 127 switch (offset & BIT(0)) { 128 case 0: 129 ik->reg.data_in = val; 130 ik->reg.status &= ~LS2K_KCS_STS_CMD; 131 break; 132 133 case 1: 134 ik->reg.cmd = val; 135 ik->reg.status |= LS2K_KCS_STS_CMD; 136 break; 137 } 138 139 ls2k_set_ibf(ik, 1); 140 ik->write_req++; 141 } 142 143 static void intf_sim_outb_v1(struct ls2k_kcs_data *ik, unsigned int offset, 144 unsigned char val) 145 { 146 if (ik->fifo.ibfh != ik->fifo.ibft) 147 return; 148 149 switch (offset & BIT(0)) { 150 case 0: 151 ik->reg.data_in = val; 152 ik->cmd_data = 0; 153 break; 154 155 case 1: 156 ik->reg.cmd = val; 157 ik->cmd_data = 1; 158 break; 159 } 160 161 ik->fifo.ibfh = !ik->fifo.ibft; 162 ik->write_req++; 163 } 164 165 static void ls2k_mem_outb(const struct si_sm_io *io, unsigned int offset, 166 unsigned char val) 167 { 168 struct ls2k_kcs_data *ik = io->addr; 169 170 if (ik->version == 0) 171 intf_sim_outb_v0(ik, offset, val); 172 else if (ik->version == 1) 173 intf_sim_outb_v1(ik, offset, val); 174 } 175 176 static void ls2k_mem_cleanup(struct si_sm_io *io) 177 { 178 if (io->addr) 179 iounmap(io->addr); 180 } 181 182 static int ipmi_ls2k_sim_setup(struct si_sm_io *io) 183 { 184 io->addr = ioremap(io->addr_data, io->regspacing); 185 if (!io->addr) 186 return -EIO; 187 188 io->inputb = ls2k_mem_inb; 189 io->outputb = ls2k_mem_outb; 190 io->io_cleanup = ls2k_mem_cleanup; 191 192 return 0; 193 } 194 195 static int ipmi_ls2k_probe(struct platform_device *pdev) 196 { 197 struct si_sm_io io; 198 199 dev_info(&pdev->dev, "probing via ls2k platform"); 200 memset(&io, 0, sizeof(io)); 201 202 io.addr_source = SI_PLATFORM; 203 io.si_type = SI_KCS; 204 io.addr_space = IPMI_MEM_ADDR_SPACE; 205 io.io_setup = ipmi_ls2k_sim_setup; 206 io.addr_data = pdev->resource[0].start; 207 io.regspacing = pdev->resource[0].end - pdev->resource[0].start + 1; 208 io.regsize = DEFAULT_REGSIZE; 209 io.regshift = 0; 210 io.dev = &pdev->dev; 211 io.irq = 0; 212 if (io.irq) 213 io.irq_setup = ipmi_std_irq_setup; 214 215 dev_info(&pdev->dev, "%pR regsize %d spacing %d irq %d\n", 216 &pdev->resource[0], io.regsize, io.regspacing, io.irq); 217 218 return ipmi_si_add_smi(&io); 219 } 220 221 static void ipmi_ls2k_remove(struct platform_device *pdev) 222 { 223 ipmi_si_remove_by_dev(&pdev->dev); 224 } 225 > 226 struct platform_driver ipmi_ls2k_platform_driver = { 227 .driver = { 228 .name = "ls2k-ipmi-si", 229 }, 230 .probe = ipmi_ls2k_probe, 231 .remove = ipmi_ls2k_remove, 232 }; 233 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
