Hi Shawn, [auto build test WARNING on linus/master] [also build test WARNING on v4.10-rc7 next-20170203] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Shawn-Lin/mmc-sdio-check-the-buffer-address-for-sdio-API/20170206-163619 config: x86_64-randconfig-x008-201706 (attached as .config) compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901 reproduce: # save the attached .config to linux build tree make ARCH=x86_64 All warnings (new ones prefixed by >>): drivers/mmc/core/sdio_io.c: In function 'sdio_io_addr_sanity_check': >> drivers/mmc/core/sdio_io.c:313:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ vim +313 drivers/mmc/core/sdio_io.c 297 */ 298 return orig_sz; 299 } 300 EXPORT_SYMBOL_GPL(sdio_align_size); 301 302 static int sdio_io_addr_sanity_check(void *buf) 303 { 304 #if defined(CONFIG_MODULES) && defined(MODULES_VADDR) 305 unsigned long addr = (unsigned long)buf; 306 307 if ((addr >= MODULES_VADDR && addr < MODULES_END) || 308 object_is_on_stack(buf)) 309 return 1; 310 #else 311 return (is_vmalloc_addr(buf) || object_is_on_stack(buf)); 312 #endif > 313 } 314 315 /* Split an arbitrarily sized data transfer into several 316 * IO_RW_EXTENDED commands. */ 317 static int sdio_io_rw_ext_helper(struct sdio_func *func, int write, 318 unsigned addr, int incr_addr, u8 *buf, unsigned size) 319 { 320 unsigned remainder = size; 321 unsigned max_blocks; --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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