Defined in 2 files as a macro:

• include/linux/hyperv.h, line 1557 (as a macro)
• tools/hv/vmbus_bufring.h, line 18 (as a macro)

Referenced in 2 files:

• drivers/hv/channel_mgmt.c, line 266
• tools/hv/hv_fcopy_uio_daemon.c, line 247