Messages in this thread | | | Date | Sun, 28 Feb 2016 07:15:14 +0800 | From | kbuild test robot <> | Subject | drivers/vhost/vhost.c:718:3: error: call to '__compiletime_assert_718' declared with attribute error: BUILD_BUG_ON failed: __alignof__ *vq->avail > VRING_AVAIL_ALIGN_SIZE |
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Hi Michael,
FYI, the error/warning still remains.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 691429e13dfaf5b0994b07cc166db41bd608ee3d commit: 5d9a07b0de512b77bf28d2401e5fe3351f00a240 vhost: relax used address alignment date: 1 year, 2 months ago config: openrisc-allmodconfig (attached as .config) reproduce: wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross git checkout 5d9a07b0de512b77bf28d2401e5fe3351f00a240 # save the attached .config to linux build tree make.cross ARCH=openrisc
All errors (new ones prefixed by >>):
drivers/vhost/vhost.c: In function 'vhost_vring_ioctl': >> drivers/vhost/vhost.c:718:3: error: call to '__compiletime_assert_718' declared with attribute error: BUILD_BUG_ON failed: __alignof__ *vq->avail > VRING_AVAIL_ALIGN_SIZE
vim +/__compiletime_assert_718 +718 drivers/vhost/vhost.c
712 (u64)(unsigned long)a.avail_user_addr != a.avail_user_addr) { 713 r = -EFAULT; 714 break; 715 } 716 717 /* Make sure it's safe to cast pointers to vring types. */ > 718 BUILD_BUG_ON(__alignof__ *vq->avail > VRING_AVAIL_ALIGN_SIZE); 719 BUILD_BUG_ON(__alignof__ *vq->used > VRING_USED_ALIGN_SIZE); 720 if ((a.avail_user_addr & (VRING_AVAIL_ALIGN_SIZE - 1)) || 721 (a.used_user_addr & (VRING_USED_ALIGN_SIZE - 1)) ||
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