Hi Seunghwan, kernel test robot noticed the following build errors: [auto build test ERROR on linus/master] [also build test ERROR on v6.11-rc5 next-20240826] [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/Seunghwan-Baek/mmc-fix-for-check-cqe-halt/20240826-130042 base: linus/master patch link: https://lore.kernel.org/r/20240823071025.15410-1-sh8267.baek%40samsung.com patch subject: [PATCH] mmc : fix for check cqe halt. config: i386-buildonly-randconfig-003-20240826 (https://download.01.org/0day-ci/archive/20240826/202408261926.P72BWMr0-lkp@xxxxxxxxx/config) compiler: clang version 18.1.5 (https://github.com/llvm/llvm-project 617a15a9eac96088ae5e9134248d8236e34b91b1) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240826/202408261926.P72BWMr0-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/202408261926.P72BWMr0-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): >> drivers/mmc/host/cqhci-core.c:285:6: error: call to undeclared function 'cqhci_halted'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 285 | if (cqhci_halted(cq_host)) | ^ drivers/mmc/host/cqhci-core.c:285:6: note: did you mean 'cqhci_writel'? drivers/mmc/host/cqhci.h:301:20: note: 'cqhci_writel' declared here 301 | static inline void cqhci_writel(struct cqhci_host *host, u32 val, int reg) | ^ drivers/mmc/host/cqhci-core.c:620:7: error: call to undeclared function 'cqhci_halted'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 620 | if (cqhci_halted(cq_host)) { | ^ >> drivers/mmc/host/cqhci-core.c:956:13: error: static declaration of 'cqhci_halted' follows non-static declaration 956 | static bool cqhci_halted(struct cqhci_host *cq_host) | ^ drivers/mmc/host/cqhci-core.c:285:6: note: previous implicit declaration is here 285 | if (cqhci_halted(cq_host)) | ^ 3 errors generated. vim +/cqhci_halted +285 drivers/mmc/host/cqhci-core.c 245 246 static void __cqhci_enable(struct cqhci_host *cq_host) 247 { 248 struct mmc_host *mmc = cq_host->mmc; 249 u32 cqcfg; 250 251 cqcfg = cqhci_readl(cq_host, CQHCI_CFG); 252 253 /* Configuration must not be changed while enabled */ 254 if (cqcfg & CQHCI_ENABLE) { 255 cqcfg &= ~CQHCI_ENABLE; 256 cqhci_writel(cq_host, cqcfg, CQHCI_CFG); 257 } 258 259 cqcfg &= ~(CQHCI_DCMD | CQHCI_TASK_DESC_SZ); 260 261 if (mmc->caps2 & MMC_CAP2_CQE_DCMD) 262 cqcfg |= CQHCI_DCMD; 263 264 if (cq_host->caps & CQHCI_TASK_DESC_SZ_128) 265 cqcfg |= CQHCI_TASK_DESC_SZ; 266 267 if (mmc->caps2 & MMC_CAP2_CRYPTO) 268 cqcfg |= CQHCI_CRYPTO_GENERAL_ENABLE; 269 270 cqhci_writel(cq_host, cqcfg, CQHCI_CFG); 271 272 cqhci_writel(cq_host, lower_32_bits(cq_host->desc_dma_base), 273 CQHCI_TDLBA); 274 cqhci_writel(cq_host, upper_32_bits(cq_host->desc_dma_base), 275 CQHCI_TDLBAU); 276 277 cqhci_writel(cq_host, cq_host->rca, CQHCI_SSC2); 278 279 cqhci_set_irqs(cq_host, 0); 280 281 cqcfg |= CQHCI_ENABLE; 282 283 cqhci_writel(cq_host, cqcfg, CQHCI_CFG); 284 > 285 if (cqhci_halted(cq_host)) 286 cqhci_writel(cq_host, 0, CQHCI_CTL); 287 288 mmc->cqe_on = true; 289 290 if (cq_host->ops->enable) 291 cq_host->ops->enable(mmc); 292 293 /* Ensure all writes are done before interrupts are enabled */ 294 wmb(); 295 296 cqhci_set_irqs(cq_host, CQHCI_IS_MASK); 297 298 cq_host->activated = true; 299 } 300 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki