Hi yalin, [auto build test ERROR on staging/staging-testing] [also build test ERROR on v4.3 next-20151106]
url: https://github.com/0day-ci/linux/commits/yalin-wang/goldfish-fix-goldfish_pipe-driver-BUG/20151106-235541 config: i386-allmodconfig (attached as .config) reproduce: # save the attached .config to linux build tree make ARCH=i386 All errors (new ones prefixed by >>): drivers/platform/goldfish/goldfish_pipe.c: In function 'goldfish_pipe_read_write': >> drivers/platform/goldfish/goldfish_pipe.c:340:7: error: implicit declaration >> of function 'get_user_pages_unlocked' [-Werror=implicit-function-declaration] if (get_user_pages_unlocked(current, current->active_mm, ^ >> drivers/platform/goldfish/goldfish_pipe.c:343:36: error: implicit >> declaration of function 'offset_in_page' >> [-Werror=implicit-function-declaration] phys_addr = page_to_phys(page) + offset_in_page(address); ^ >> drivers/platform/goldfish/goldfish_pipe.c:355:3: error: implicit declaration >> of function 'put_page' [-Werror=implicit-function-declaration] put_page(page); ^ cc1: some warnings being treated as errors vim +/get_user_pages_unlocked +340 drivers/platform/goldfish/goldfish_pipe.c 334 if (__put_user(0, (char __user *)address)) { 335 if (!ret) 336 ret = -EFAULT; 337 break; 338 } 339 } > 340 if (get_user_pages_unlocked(current, current->active_mm, 341 address, 1, !is_write, 0, &page) != 1) 342 return -EINVAL; > 343 phys_addr = page_to_phys(page) + > offset_in_page(address); 344 /* Now, try to transfer the bytes in the current page */ 345 spin_lock_irqsave(&dev->lock, irq_flags); 346 gf_write_ptr(pipe, dev->base + PIPE_REG_CHANNEL, 347 dev->base + PIPE_REG_CHANNEL_HIGH); 348 writel(avail, dev->base + PIPE_REG_SIZE); 349 gf_write_ptr((void *)phys_addr, dev->base + PIPE_REG_ADDRESS, 350 dev->base + PIPE_REG_ADDRESS_HIGH); 351 writel(CMD_WRITE_BUFFER + cmd_offset, 352 dev->base + PIPE_REG_COMMAND); 353 status = readl(dev->base + PIPE_REG_STATUS); 354 spin_unlock_irqrestore(&dev->lock, irq_flags); > 355 put_page(page); 356 if (status > 0) { /* Correct transfer */ 357 ret += status; 358 address += status; --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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