Hi Sergey, kernel test robot noticed the following build warnings: [auto build test WARNING on linus/master] [also build test WARNING on ulf-hansson-mmc-mirror/next v6.6-rc3 next-20230929] [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/Sergey-Khimich/mmc-cqhci-Add-cqhci_set_tran_desc-callback/20230926-170331 base: linus/master patch link: https://lore.kernel.org/r/20230926090242.105020-2-serghox%40gmail.com patch subject: [PATCH v2 1/2] mmc: cqhci: Add cqhci_set_tran_desc() callback config: hexagon-allyesconfig (https://download.01.org/0day-ci/archive/20230930/202309300806.dcR19kcE-lkp@xxxxxxxxx/config) compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project.git 4a5ac14ee968ff0ad5d2cc1ffa0299048db4c88a) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20230930/202309300806.dcR19kcE-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/202309300806.dcR19kcE-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): In file included from drivers/mmc/host/sdhci_am654.c:9: In file included from include/linux/iopoll.h:14: In file included from include/linux/io.h:13: In file included from arch/hexagon/include/asm/io.h:337: include/asm-generic/io.h:547:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 547 | val = __raw_readb(PCI_IOBASE + addr); | ~~~~~~~~~~ ^ include/asm-generic/io.h:560:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 560 | val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr)); | ~~~~~~~~~~ ^ include/uapi/linux/byteorder/little_endian.h:37:51: note: expanded from macro '__le16_to_cpu' 37 | #define __le16_to_cpu(x) ((__force __u16)(__le16)(x)) | ^ In file included from drivers/mmc/host/sdhci_am654.c:9: In file included from include/linux/iopoll.h:14: In file included from include/linux/io.h:13: In file included from arch/hexagon/include/asm/io.h:337: include/asm-generic/io.h:573:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 573 | val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr)); | ~~~~~~~~~~ ^ include/uapi/linux/byteorder/little_endian.h:35:51: note: expanded from macro '__le32_to_cpu' 35 | #define __le32_to_cpu(x) ((__force __u32)(__le32)(x)) | ^ In file included from drivers/mmc/host/sdhci_am654.c:9: In file included from include/linux/iopoll.h:14: In file included from include/linux/io.h:13: In file included from arch/hexagon/include/asm/io.h:337: include/asm-generic/io.h:584:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 584 | __raw_writeb(value, PCI_IOBASE + addr); | ~~~~~~~~~~ ^ include/asm-generic/io.h:594:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 594 | __raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr); | ~~~~~~~~~~ ^ include/asm-generic/io.h:604:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 604 | __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr); | ~~~~~~~~~~ ^ In file included from drivers/mmc/host/sdhci_am654.c:17: >> drivers/mmc/host/cqhci.h:296:32: warning: declaration of 'struct mmc_data' will not be visible outside of this function [-Wvisibility] 296 | void (*prep_tran_desc)(struct mmc_data *data, struct cqhci_host *cq_host, | ^ 7 warnings generated. vim +296 drivers/mmc/host/cqhci.h 281 282 struct cqhci_host_ops { 283 void (*dumpregs)(struct mmc_host *mmc); 284 void (*write_l)(struct cqhci_host *host, u32 val, int reg); 285 u32 (*read_l)(struct cqhci_host *host, int reg); 286 void (*enable)(struct mmc_host *mmc); 287 void (*disable)(struct mmc_host *mmc, bool recovery); 288 void (*update_dcmd_desc)(struct mmc_host *mmc, struct mmc_request *mrq, 289 u64 *data); 290 void (*pre_enable)(struct mmc_host *mmc); 291 void (*post_disable)(struct mmc_host *mmc); 292 #ifdef CONFIG_MMC_CRYPTO 293 int (*program_key)(struct cqhci_host *cq_host, 294 const union cqhci_crypto_cfg_entry *cfg, int slot); 295 #endif > 296 void (*prep_tran_desc)(struct mmc_data *data, struct cqhci_host *cq_host, 297 u8 *desc, int sg_count); 298 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
