Defined in 4 files as a macro:

• include/xen/interface/io/protocols.h, line 11 (as a macro)
• include/xen/interface/io/protocols.h, line 13 (as a macro)
• include/xen/interface/io/protocols.h, line 15 (as a macro)
• include/xen/interface/io/protocols.h, line 17 (as a macro)

Referenced in 3 files:

• drivers/block/xen-blkback/xenbus.c, line 1073
• drivers/block/xen-blkfront.c, line 1854
• drivers/video/fbdev/xen-fbfront.c, line 580