[kbuild-all] drivers/irqchip/irq-loongson-liointc.c:134:12: warning: no previous prototype for 'liointc_of_init'

tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 42f82040ee66db13525dc6f14b8559890b2f4c1c commit: dbb152267908c4b2c3639492a94b6838821bc195 irqchip: Add driver for Loongson I/O Local Interrupt Controller date: 4 months ago config: mips-randconfig-r003-20200710 (attached as .config) compiler: mips64el-linux-gcc (GCC) 9.3.0 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 git checkout dbb152267908c4b2c3639492a94b6838821bc195 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=mips If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): 134 | int __init liointc_of_init(struct device_node *node, | ^~~~~~~~~~~~~~~ {standard input}: Assembler messages: {standard input}:216: Error: found '(', expected: ')' {standard input}:216: Error: found '(', expected: ')' {standard input}:216: Error: non-constant expression in ".if" statement {standard input}:216: Error: junk at end of line, first unrecognized character is `(' {standard input}:304: Error: found '(', expected: ')' {standard input}:304: Error: found '(', expected: ')' {standard input}:304: Error: non-constant expression in ".if" statement {standard input}:304: Error: junk at end of line, first unrecognized character is `(' {standard input}:364: Error: found '(', expected: ')' {standard input}:364: Error: found '(', expected: ')' {standard input}:364: Error: non-constant expression in ".if" statement {standard input}:364: Error: junk at end of line, first unrecognized character is `(' {standard input}:1786: Error: found '(', expected: ')' {standard input}:1786: Error: found '(', expected: ')' {standard input}:1786: Error: non-constant expression in ".if" statement {standard input}:1786: Error: junk at end of line, first unrecognized character is `(' {standard input}:1845: Error: found '(', expected: ')' {standard input}:1845: Error: found '(', expected: ')' {standard input}:1845: Error: non-constant expression in ".if" statement {standard input}:1845: Error: junk at end of line, first unrecognized character is `(' {standard input}:2344: Error: found '(', expected: ')' {standard input}:2344: Error: found '(', expected: ')' {standard input}:2344: Error: non-constant expression in ".if" statement {standard input}:2344: Error: junk at end of line, first unrecognized character is `(' {standard input}:3578: Error: found '(', expected: ')' {standard input}:3578: Error: found '(', expected: ')' {standard input}:3578: Error: non-constant expression in ".if" statement {standard input}:3578: Error: junk at end of line, first unrecognized character is `(' {standard input}:3614: Error: found '(', expected: ')' {standard input}:3614: Error: found '(', expected: ')' {standard input}:3614: Error: non-constant expression in ".if" statement {standard input}:3614: Error: junk at end of line, first unrecognized character is `(' {standard input}:4670: Error: found '(', expected: ')' {standard input}:4670: Error: found '(', expected: ')' {standard input}:4670: Error: non-constant expression in ".if" statement {standard input}:4670: Error: junk at end of line, first unrecognized character is `(' {standard input}:4705: Error: found '(', expected: ')' {standard input}:4705: Error: found '(', expected: ')' {standard input}:4705: Error: non-constant expression in ".if" statement {standard input}:4705: Error: junk at end of line, first unrecognized character is `(' {standard input}:4737: Error: found '(', expected: ')' {standard input}:4737: Error: found '(', expected: ')' {standard input}:4737: Error: non-constant expression in ".if" statement {standard input}:4737: Error: junk at end of line, first unrecognized character is `(' {standard input}:4825: Error: found '(', expected: ')' {standard input}:4825: Error: found '(', expected: ')' {standard input}:4825: Error: non-constant expression in ".if" statement {standard input}:4825: Error: junk at end of line, first unrecognized character is `(' {standard input}:4860: Error: found '(', expected: ')' {standard input}:4860: Error: found '(', expected: ')' {standard input}:4860: Error: non-constant expression in ".if" statement {standard input}:4860: Error: junk at end of line, first unrecognized character is `(' {standard input}:4894: Error: found '(', expected: ')' {standard input}:4894: Error: found '(', expected: ')' {standard input}:4894: Error: non-constant expression in ".if" statement {standard input}:4894: Error: junk at end of line, first unrecognized character is `(' -- 134 | int __init liointc_of_init(struct device_node *node, | ^~~~~~~~~~~~~~~ {standard input}: Assembler messages: {standard input}:216: Error: found '(', expected: ')' {standard input}:216: Error: found '(', expected: ')' {standard input}:216: Error: non-constant expression in ".if" statement {standard input}:216: Error: junk at end of line, first unrecognized character is `(' {standard input}:304: Error: found '(', expected: ')' {standard input}:304: Error: found '(', expected: ')' {standard input}:304: Error: non-constant expression in ".if" statement {standard input}:304: Error: junk at end of line, first unrecognized character is `(' {standard input}:364: Error: found '(', expected: ')' {standard input}:364: Error: found '(', expected: ')' {standard input}:364: Error: non-constant expression in ".if" statement {standard input}:364: Error: junk at end of line, first unrecognized character is `(' {standard input}:1791: Error: found '(', expected: ')' {standard input}:1791: Error: found '(', expected: ')' {standard input}:1791: Error: non-constant expression in ".if" statement {standard input}:1791: Error: junk at end of line, first unrecognized character is `(' {standard input}:1850: Error: found '(', expected: ')' {standard input}:1850: Error: found '(', expected: ')' {standard input}:1850: Error: non-constant expression in ".if" statement {standard input}:1850: Error: junk at end of line, first unrecognized character is `(' {standard input}:2349: Error: found '(', expected: ')' {standard input}:2349: Error: found '(', expected: ')' {standard input}:2349: Error: non-constant expression in ".if" statement {standard input}:2349: Error: junk at end of line, first unrecognized character is `(' {standard input}:3584: Error: found '(', expected: ')' {standard input}:3584: Error: found '(', expected: ')' {standard input}:3584: Error: non-constant expression in ".if" statement {standard input}:3584: Error: junk at end of line, first unrecognized character is `(' {standard input}:3620: Error: found '(', expected: ')' {standard input}:3620: Error: found '(', expected: ')' {standard input}:3620: Error: non-constant expression in ".if" statement {standard input}:3620: Error: junk at end of line, first unrecognized character is `(' {standard input}:4676: Error: found '(', expected: ')' {standard input}:4676: Error: found '(', expected: ')' {standard input}:4676: Error: non-constant expression in ".if" statement {standard input}:4676: Error: junk at end of line, first unrecognized character is `(' {standard input}:4711: Error: found '(', expected: ')' {standard input}:4711: Error: found '(', expected: ')' {standard input}:4711: Error: non-constant expression in ".if" statement {standard input}:4711: Error: junk at end of line, first unrecognized character is `(' {standard input}:4743: Error: found '(', expected: ')' {standard input}:4743: Error: found '(', expected: ')' {standard input}:4743: Error: non-constant expression in ".if" statement {standard input}:4743: Error: junk at end of line, first unrecognized character is `(' {standard input}:4831: Error: found '(', expected: ')' {standard input}:4831: Error: found '(', expected: ')' {standard input}:4831: Error: non-constant expression in ".if" statement {standard input}:4831: Error: junk at end of line, first unrecognized character is `(' {standard input}:4866: Error: found '(', expected: ')' {standard input}:4866: Error: found '(', expected: ')' {standard input}:4866: Error: non-constant expression in ".if" statement {standard input}:4866: Error: junk at end of line, first unrecognized character is `(' {standard input}:4900: Error: found '(', expected: ')' {standard input}:4900: Error: found '(', expected: ')' {standard input}:4900: Error: non-constant expression in ".if" statement {standard input}:4900: Error: junk at end of line, first unrecognized character is `(' vim +/liointc_of_init +134 drivers/irqchip/irq-loongson-liointc.c 133 135 struct device_node *parent) 136 { 137 struct irq_chip_generic *gc; 138 struct irq_domain *domain; 139 struct irq_chip_type *ct; 140 struct liointc_priv *priv; 141 void __iomem *base; 142 u32 of_parent_int_map[LIOINTC_NUM_PARENT]; 143 int parent_irq[LIOINTC_NUM_PARENT]; 144 bool have_parent = FALSE; 145 int sz, i, err = 0; 146 147 priv = kzalloc(sizeof(*priv), GFP_KERNEL); 148 if (!priv) 149 return -ENOMEM; 150 151 base = of_iomap(node, 0); 152 if (!base) { 153 err = -ENODEV; 154 goto out_free_priv; 155 } 156 157 for (i = 0; i < LIOINTC_NUM_PARENT; i++) { 158 parent_irq[i] = of_irq_get_byname(node, parent_names[i]); 159 if (parent_irq[i] > 0) 160 have_parent = TRUE; 161 } 162 if (!have_parent) { 163 err = -ENODEV; 164 goto out_iounmap; 165 } 166 167 sz = of_property_read_variable_u32_array(node, 168 "loongson,parent_int_map", 169 &of_parent_int_map[0], 170 LIOINTC_NUM_PARENT, 171 LIOINTC_NUM_PARENT); 172 if (sz < 4) { 173 pr_err("loongson-liointc: No parent_int_map\n"); 174 err = -ENODEV; 175 goto out_iounmap; 176 } 177 178 for (i = 0; i < LIOINTC_NUM_PARENT; i++) 179 priv->handler[i].parent_int_map = of_parent_int_map[i]; 180 181 /* Setup IRQ domain */ 182 domain = irq_domain_add_linear(node, 32, 183 &irq_generic_chip_ops, priv); 184 if (!domain) { 185 pr_err("loongson-liointc: cannot add IRQ domain\n"); 186 err = -EINVAL; 187 goto out_iounmap; 188 } 189 190 err = irq_alloc_domain_generic_chips(domain, 32, 1, 191 node->full_name, handle_level_irq, 192 IRQ_NOPROBE, 0, 0); 193 if (err) { 194 pr_err("loongson-liointc: unable to register IRQ domain\n"); 195 goto out_free_domain; 196 } 197 198 199 /* Disable all IRQs */ 200 writel(0xffffffff, base + LIOINTC_REG_INTC_DISABLE); 201 /* Set to level triggered */ 202 writel(0x0, base + LIOINTC_REG_INTC_EDGE); 203 204 /* Generate parent INT part of map cache */ 205 for (i = 0; i < LIOINTC_NUM_PARENT; i++) { 206 u32 pending = priv->handler[i].parent_int_map; 207 208 while (pending) { 209 int bit = __ffs(pending); 210 211 priv->map_cache[bit] = BIT(i) << LIOINTC_SHIFT_INTx; 212 pending &= ~BIT(bit); 213 } 214 } 215 216 for (i = 0; i < LIOINTC_CHIP_IRQ; i++) { 217 /* Generate core part of map cache */ 218 priv->map_cache[i] |= BIT(loongson_sysconf.boot_cpu_id); 219 writeb(priv->map_cache[i], base + i); 220 } 221 222 gc = irq_get_domain_generic_chip(domain, 0); 223 gc->private = priv; 224 gc->reg_base = base; 225 gc->domain = domain; 226 gc->resume = liointc_resume; 227 228 ct = gc->chip_types; 229 ct->regs.enable = LIOINTC_REG_INTC_ENABLE; 230 ct->regs.disable = LIOINTC_REG_INTC_DISABLE; 231 ct->chip.irq_unmask = irq_gc_unmask_enable_reg; 232 ct->chip.irq_mask = irq_gc_mask_disable_reg; 233 ct->chip.irq_mask_ack = irq_gc_mask_disable_reg; 234 ct->chip.irq_set_type = liointc_set_type; 235 236 gc->mask_cache = 0xffffffff; 237 priv->gc = gc; 238 239 for (i = 0; i < LIOINTC_NUM_PARENT; i++) { 240 if (parent_irq[i] <= 0) 241 continue; 242 243 priv->handler[i].priv = priv; 244 irq_set_chained_handler_and_data(parent_irq[i], 245 liointc_chained_handle_irq, &priv->handler[i]); 246 } 247 248 return 0; 249 250 out_free_domain: 251 irq_domain_remove(domain); 252 out_iounmap: 253 iounmap(base); 254 out_free_priv: 255 kfree(priv); 256 257 return err; 258 } 259 --- 0-DAY CI Kernel Test 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