tree: https://git.kernel.org/pub/scm/linux/kernel/git/mark/linux.git linkage/alias-rework head: a024fcf01f6ed383d5d22d6784fbba21ac0f4d2a commit: 18767f88b5593b40e521c45b58af8c0ea7953927 [2/7] linkage: add SYM_{ENTRY,START,END}_AT() config: arm-omap1_defconfig (https://download.01.org/0day-ci/archive/20220126/202201260540.vObCbIBt-lk...) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 997e128e2a78f5a5434fc75997441ae1ee76f8a4) 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 # install arm cross compiling tool for clang build # apt-get install binutils-arm-linux-gnueabi # https://git.kernel.org/pub/scm/linux/kernel/git/mark/linux.git/commit/?id... git remote add mark https://git.kernel.org/pub/scm/linux/kernel/git/mark/linux.git git fetch --no-tags mark linkage/alias-rework git checkout 18767f88b5593b40e521c45b58af8c0ea7953927 # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm SHELL=/bin/bash If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): .if (qwerty_fiqin_end - qwerty_fiqin_start) > (0x200 - 0x1c) ^ .err ^ vim +272 arch/arm/mach-omap1/ams-delta-fiq-handler.S 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 167 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 168 @ r8 still contains GPIO input bits 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 169 ands r8, r8, #KEYBRD_DATA_MASK @ is keyboard data line low? 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 170 ldreq r8, [r9, #BUF_KEY] @ yes - fetch collected so far, 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 171 orreq r8, r8, r10 @ set 1 at current mask position 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 172 streq r8, [r9, #BUF_KEY] @ and save back 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 173 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 174 mov r10, r10, lsl #1 @ shift mask left 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 175 bics r10, r10, #0x800 @ have we got all the bits? 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 176 strne r10, [r9, #BUF_MASK] @ not yet - store the mask 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 177 bne restart @ and restart 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 178 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 179 @ r10 already contains 0, reuse it 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 180 str r10, [r9, #BUF_STATE] @ reset state to start 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 181 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 182 @ Key done - restore interrupt mask 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 183 ldr r10, [r9, #BUF_GPIO_INT_MASK] @ fetch saved mask 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 184 and r11, r11, r10 @ unmask all saved as unmasked 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 185 str r11, [r12, #OMAP1510_GPIO_INT_MASK] @ restore into the mask register 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 186 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 187 @ Try appending the keycode to the circular buffer 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 188 ldr r10, [r9, #BUF_KEYS_CNT] @ get saved keystrokes count 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 189 ldr r8, [r9, #BUF_BUF_LEN] @ get buffer size 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 190 cmp r10, r8 @ is buffer full? 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 191 beq hksw @ yes - key lost, next source 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 192 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 193 add r10, r10, #1 @ incremet keystrokes counter 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 194 str r10, [r9, #BUF_KEYS_CNT] 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 195 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 196 ldr r10, [r9, #BUF_TAIL_OFFSET] @ get buffer tail offset 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 197 @ r8 already contains buffer size 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 198 cmp r10, r8 @ end of buffer? 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 199 moveq r10, #0 @ yes - rewind to buffer start 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 200 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 201 ldr r12, [r9, #BUF_BUFFER_START] @ get buffer start address 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 202 add r12, r12, r10, LSL #2 @ calculate buffer tail address 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 203 ldr r8, [r9, #BUF_KEY] @ get last keycode 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 204 str r8, [r12] @ append it to the buffer tail 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 205 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 206 add r10, r10, #1 @ increment buffer tail offset 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 207 str r10, [r9, #BUF_TAIL_OFFSET] 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 208 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 209 ldr r10, [r9, #BUF_CNT_INT_KEY] @ increment interrupts counter 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 210 add r10, r10, #1 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 211 str r10, [r9, #BUF_CNT_INT_KEY] 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 212 @@@@@@@@@@@@@@@@@@@@@@@@ 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 213 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 214 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 215 hksw: @Is hook switch interrupt requested? 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 216 tst r13, #HOOK_SWITCH_MASK @ is hook switch status bit set? 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 217 beq mdm @ no - try next source 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 218 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 219 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 220 @@@@@@@@@@@@@@@@@@@@@@@@ 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 221 @ Hook switch interrupt FIQ mode simple handler 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 222 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 223 @ Don't toggle active edge, the switch always bounces 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 224 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 225 @ Increment hook switch interrupt counter 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 226 ldr r10, [r9, #BUF_CNT_INT_HSW] 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 227 add r10, r10, #1 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 228 str r10, [r9, #BUF_CNT_INT_HSW] 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 229 @@@@@@@@@@@@@@@@@@@@@@@@ 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 230 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 231 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 232 mdm: @Is it a modem interrupt? 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 233 tst r13, #MODEM_IRQ_MASK @ is modem status bit set? 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 234 beq irq @ no - check for next interrupt 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 235 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 236 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 237 @@@@@@@@@@@@@@@@@@@@@@@@ 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 238 @ Modem FIQ mode interrupt handler stub 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 239 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 240 @ Increment modem interrupt counter 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 241 ldr r10, [r9, #BUF_CNT_INT_MDM] 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 242 add r10, r10, #1 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 243 str r10, [r9, #BUF_CNT_INT_MDM] 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 244 @@@@@@@@@@@@@@@@@@@@@@@@ 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 245 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 246 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 247 irq: @ Place deferred_fiq interrupt request 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 248 ldr r12, deferred_fiq_ih_base @ set pointer to IRQ handler 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 249 mov r10, #DEFERRED_FIQ_MASK @ set deferred_fiq bit 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 250 str r10, [r12, #IRQ_ISR_REG_OFFSET] @ place it in the ISR register 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 251 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 252 ldr r12, omap1510_gpio_base @ set pointer back to GPIO bank 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 253 b restart @ check for next GPIO interrupt 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 254 @@@@@@@@@@@@@@@@@@@@@@@@@@@ 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 255 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 256 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 257 /* 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 258 * Virtual addresses for IO 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 259 */ 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 260 omap_ih1_base: 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 261 .word OMAP1_IO_ADDRESS(OMAP_IH1_BASE) 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 262 deferred_fiq_ih_base: 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 263 .word OMAP1_IO_ADDRESS(DEFERRED_FIQ_IH_BASE) 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 264 omap1510_gpio_base: 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 265 .word OMAP1_IO_ADDRESS(OMAP1510_GPIO_BASE) 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 266 qwerty_fiqin_end: 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 267 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 268 /* 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 269 * Check the size of the FIQ, 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 270 * it cannot go beyond 0xffff0200, and is copied to 0xffff001c 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 271 */ 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 @272 .if (qwerty_fiqin_end - qwerty_fiqin_start) > (0x200 - 0x1c) 60c3bf3f121545 Janusz Krzysztofik 2010-04-28 @273 .err :::::: The code at line 272 was first introduced by commit :::::: 60c3bf3f1215453a4f30f0b91db7fd301d558693 OMAP1: Amstrad Delta: add FIQ handler for serial keyboardport interrupt processing :::::: TO: Janusz Krzysztofik <jkrzyszt(a)tis.icnet.pl&gt; :::::: CC: Tony Lindgren <tony(a)atomide.com&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org