Hi Stephen, [auto build test WARNING on block/for-next -- if it's inappropriate base, please suggest rules for selecting the more suitable base] url: https://github.com/0day-ci/linux/commits/Stephen-Rothwell/linux-next-manual-merge-of-the-akpm-current-tree-with-the-block-tree/20151101-235406 config: x86_64-randconfig-x018-201544 (attached as .config) reproduce: # save the attached .config to linux build tree make ARCH=x86_64 All warnings (new ones prefixed by >>): In file included from include/linux/linkage.h:4:0, from include/linux/kernel.h:6, from block/blk-core.c:14: block/blk-core.c: In function 'blk_queue_enter': block/blk-core.c:641:8: error: implicit declaration of function 'gfpflags_allow_blocking' [-Werror=implicit-function-declaration] if (!gfpflags_allow_blocking(gfp)) ^ include/linux/compiler.h:147:28: note: in definition of macro '__trace_if' if (__builtin_constant_p((cond)) ? !!(cond) : \ ^ >> block/blk-core.c:641:3: note: in expansion of macro 'if' if (!gfpflags_allow_blocking(gfp)) ^ block/blk-core.c: In function 'generic_make_request': block/blk-core.c:2041:33: error: '__GFP_RECLAIM' undeclared (first use in this function) if (likely(blk_queue_enter(q, __GFP_RECLAIM) == 0)) { ^ include/linux/compiler.h:147:28: note: in definition of macro '__trace_if' if (__builtin_constant_p((cond)) ? !!(cond) : \ ^ block/blk-core.c:2041:3: note: in expansion of macro 'if' if (likely(blk_queue_enter(q, __GFP_RECLAIM) == 0)) { ^ >> block/blk-core.c:2041:7: note: in expansion of macro 'likely' if (likely(blk_queue_enter(q, __GFP_RECLAIM) == 0)) { ^ block/blk-core.c:2041:33: note: each undeclared identifier is reported only once for each function it appears in if (likely(blk_queue_enter(q, __GFP_RECLAIM) == 0)) { ^ include/linux/compiler.h:147:28: note: in definition of macro '__trace_if' if (__builtin_constant_p((cond)) ? !!(cond) : \ ^ block/blk-core.c:2041:3: note: in expansion of macro 'if' if (likely(blk_queue_enter(q, __GFP_RECLAIM) == 0)) { ^ >> block/blk-core.c:2041:7: note: in expansion of macro 'likely' if (likely(blk_queue_enter(q, __GFP_RECLAIM) == 0)) { ^ cc1: some warnings being treated as errors vim +/if +641 block/blk-core.c 625 } 626 627 struct request_queue *blk_alloc_queue(gfp_t gfp_mask) 628 { 629 return blk_alloc_queue_node(gfp_mask, NUMA_NO_NODE); 630 } 631 EXPORT_SYMBOL(blk_alloc_queue); 632 633 int blk_queue_enter(struct request_queue *q, gfp_t gfp) 634 { 635 while (true) { 636 int ret; 637 638 if (percpu_ref_tryget_live(&q->q_usage_counter)) 639 return 0; 640 > 641 if (!gfpflags_allow_blocking(gfp)) 642 return -EBUSY; 643 644 ret = wait_event_interruptible(q->mq_freeze_wq, 645 !atomic_read(&q->mq_freeze_depth) || 646 blk_queue_dying(q)); 647 if (blk_queue_dying(q)) 648 return -ENODEV; 649 if (ret) --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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