Hi Roman, [auto build test ERROR on linus/master] [also build test ERROR on v4.9 next-20161221] [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/Roman-Kagan/hyperv-more-stuff-to-uapi-cleanup/20161221-130415 config: x86_64-rhel (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 Note: the linux-review/Roman-Kagan/hyperv-more-stuff-to-uapi-cleanup/20161221-130415 HEAD 35a54cd6795c4aa6f101c58ab076c6bdd63b3779 builds fine. It only hurts bisectibility. All errors (new ones prefixed by >>): drivers/hv/connection.c: In function 'vmbus_set_event': >> drivers/hv/connection.c:473:3: error: implicit declaration of function 'sync_set_bit' [-Werror=implicit-function-declaration] sync_set_bit(child_relid & 31, ^~~~~~~~~~~~ cc1: some warnings being treated as errors -- drivers/hv/channel.c: In function 'vmbus_setevent': >> drivers/hv/channel.c:53:3: error: implicit declaration of function 'sync_set_bit' [-Werror=implicit-function-declaration] sync_set_bit(channel->offermsg.child_relid & 31, ^~~~~~~~~~~~ cc1: some warnings being treated as errors vim +/sync_set_bit +473 drivers/hv/connection.c 1b807e101 drivers/hv/connection.c K. Y. Srinivasan 2015-12-21 467 void vmbus_set_event(struct vmbus_channel *channel) 3e7ee4902 drivers/staging/hv/Connection.c Hank Janssen 2009-07-13 468 { 21c3bef5d drivers/hv/connection.c K. Y. Srinivasan 2012-12-01 469 u32 child_relid = channel->offermsg.child_relid; 3be777740 drivers/hv/connection.c K. Y. Srinivasan 2012-12-01 470 3be777740 drivers/hv/connection.c K. Y. Srinivasan 2012-12-01 471 if (!channel->is_dedicated_interrupt) { 454f18a96 drivers/staging/hv/Connection.c Bill Pemberton 2009-07-27 472 /* Each u32 represents 32 channels */ 223565857 drivers/staging/hv/connection.c Olaf Hering 2011-03-21 @473 sync_set_bit(child_relid & 31, da9fcb726 drivers/staging/hv/connection.c Haiyang Zhang 2011-01-26 474 (unsigned long *)vmbus_connection.send_int_page + 15b2f6479 drivers/staging/hv/connection.c Haiyang Zhang 2011-01-26 475 (child_relid >> 5)); 3be777740 drivers/hv/connection.c K. Y. Srinivasan 2012-12-01 476 } :::::: The code at line 473 was first introduced by commit :::::: 22356585712d1ff08fbfed152edd8b386873b238 staging: hv: use sync_bitops when interacting with the hypervisor :::::: TO: Olaf Hering <olaf@xxxxxxxxx> :::::: CC: Greg Kroah-Hartman <gregkh@xxxxxxx> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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