tree: https://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs.git Q14 head: 7f5b2a71d2811c5d8116009cc8239e24923864d4 commit: db657ae58e61db9d2b041cd5b84500b2cfd47e3d [32/56] vfs: Implement logging through fs_context config: nds32-allnoconfig (attached as .config) compiler: nds32le-linux-gcc (GCC) 6.4.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross git checkout db657ae58e61db9d2b041cd5b84500b2cfd47e3d # save the attached .config to linux build tree GCC_VERSION=6.4.0 make.cross ARCH=nds32 Note: the vfs/Q14 HEAD 7f5b2a71d2811c5d8116009cc8239e24923864d4 builds fine. It only hurts bisectibility. All errors (new ones prefixed by >>): fs/fs_context.c: In function 'logfc': >> fs/fs_context.c:380:3: error: implicit declaration of function 'vprintk_emit' [-Werror=implicit-function-declaration] vprintk_emit(0, LOGLEVEL_WARNING, NULL, 0, fmt, va); ^~~~~~~~~~~~ cc1: some warnings being treated as errors vim +/vprintk_emit +380 fs/fs_context.c 366 367 /** 368 * logfc - Log a message to a filesystem context 369 * @fc: The filesystem context to log to. 370 * @fmt: The format of the buffer. 371 */ 372 void logfc(struct fs_context *fc, const char *fmt, ...) 373 { 374 va_list va; 375 376 va_start(va, fmt); 377 378 switch (fmt[0]) { 379 case 'w': > 380 vprintk_emit(0, LOGLEVEL_WARNING, NULL, 0, fmt, va); 381 break; 382 case 'e': 383 vprintk_emit(0, LOGLEVEL_ERR, NULL, 0, fmt, va); 384 break; 385 default: 386 vprintk_emit(0, LOGLEVEL_NOTICE, NULL, 0, fmt, va); 387 break; 388 } 389 390 pr_cont("\n"); 391 va_end(va); 392 } 393 EXPORT_SYMBOL(logfc); 394 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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