Hi David, FYI, the error/warning still remains. tree: https://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs.git work.mount head: 972cb8216dab124b3cb580a5a1d2989337827ff2 commit: a939e8d3e17037ae1f4ea6c0349418221e1d82ef [40/43] vfs: Implement logging through fs_context config: ia64-allnoconfig (attached as .config) compiler: ia64-linux-gcc (GCC) 8.2.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross git checkout a939e8d3e17037ae1f4ea6c0349418221e1d82ef # save the attached .config to linux build tree GCC_VERSION=8.2.0 make.cross ARCH=ia64 All errors (new ones prefixed by >>): fs/fs_context.c: In function 'logfc': >> fs/fs_context.c:394:3: error: implicit declaration of function 'vprintk_emit'; did you mean 'dev_printk_emit'? [-Werror=implicit-function-declaration] vprintk_emit(0, LOGLEVEL_WARNING, NULL, 0, fmt, va); ^~~~~~~~~~~~ dev_printk_emit cc1: some warnings being treated as errors vim +394 fs/fs_context.c 380 381 /** 382 * logfc - Log a message to a filesystem context 383 * @fc: The filesystem context to log to. 384 * @fmt: The format of the buffer. 385 */ 386 void logfc(struct fs_context *fc, const char *fmt, ...) 387 { 388 va_list va; 389 390 va_start(va, fmt); 391 392 switch (fmt[0]) { 393 case 'w': > 394 vprintk_emit(0, LOGLEVEL_WARNING, NULL, 0, fmt, va); 395 break; 396 case 'e': 397 vprintk_emit(0, LOGLEVEL_ERR, NULL, 0, fmt, va); 398 break; 399 default: 400 vprintk_emit(0, LOGLEVEL_NOTICE, NULL, 0, fmt, va); 401 break; 402 } 403 404 pr_cont("\n"); 405 va_end(va); 406 } 407 EXPORT_SYMBOL(logfc); 408 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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