DKMS make.log for blktap-2.0.93 for kernel 4.11.0-3-generic (x86_64)
Wed May 17 15:28:01 UTC 2017
make: Entering directory '/usr/src/linux-headers-4.11.0-3-generic'
  CC [M]  /var/lib/dkms/blktap/2.0.93/build/control.o
In file included from /var/lib/dkms/blktap/2.0.93/build/linux-blktap.h:66:0,
                 from /var/lib/dkms/blktap/2.0.93/build/blktap.h:33,
                 from /var/lib/dkms/blktap/2.0.93/build/control.c:30:
/var/lib/dkms/blktap/2.0.93/build/linux-blktap.h:119:24: warning: variably modified ‘pending’ at file scope
        sizeof(((struct blktap_sring *)0)->ring[0])))
                        ^
./include/xen/interface/io/ring.h:15:59: note: in definition of macro ‘__RD2’
 #define __RD2(_x)  (((_x) & 0x00000002) ? 0x2         : ((_x) & 0x1))
                                                           ^~
./include/xen/interface/io/ring.h:17:66: note: in expansion of macro ‘__RD4’
 #define __RD8(_x)  (((_x) & 0x000000f0) ? __RD4((_x)>>4)<<4    : __RD4(_x))
                                                                  ^~~~~
./include/xen/interface/io/ring.h:18:66: note: in expansion of macro ‘__RD8’
 #define __RD16(_x) (((_x) & 0x0000ff00) ? __RD8((_x)>>8)<<8    : __RD8(_x))
                                                                  ^~~~~
./include/xen/interface/io/ring.h:19:66: note: in expansion of macro ‘__RD16’
 #define __RD32(_x) (((_x) & 0xffff0000) ? __RD16((_x)>>16)<<16 : __RD16(_x))
                                                                  ^~~~~~
/var/lib/dkms/blktap/2.0.93/build/linux-blktap.h:117:8: note: in expansion of macro ‘__RD32’
  ((int)__RD32((BLKTAP_PAGE_SIZE -    \
        ^~~~~~
/var/lib/dkms/blktap/2.0.93/build/blktap.h:77:41: note: in expansion of macro ‘BLKTAP_RING_SIZE’
  struct blktap_request         *pending[BLKTAP_RING_SIZE];
                                         ^~~~~~~~~~~~~~~~
  CC [M]  /var/lib/dkms/blktap/2.0.93/build/ring.o
In file included from /var/lib/dkms/blktap/2.0.93/build/linux-blktap.h:66:0,
                 from /var/lib/dkms/blktap/2.0.93/build/blktap.h:33,
                 from /var/lib/dkms/blktap/2.0.93/build/ring.c:38:
/var/lib/dkms/blktap/2.0.93/build/linux-blktap.h:119:24: warning: variably modified ‘pending’ at file scope
        sizeof(((struct blktap_sring *)0)->ring[0])))
                        ^
./include/xen/interface/io/ring.h:15:59: note: in definition of macro ‘__RD2’
 #define __RD2(_x)  (((_x) & 0x00000002) ? 0x2         : ((_x) & 0x1))
                                                           ^~
./include/xen/interface/io/ring.h:17:66: note: in expansion of macro ‘__RD4’
 #define __RD8(_x)  (((_x) & 0x000000f0) ? __RD4((_x)>>4)<<4    : __RD4(_x))
                                                                  ^~~~~
./include/xen/interface/io/ring.h:18:66: note: in expansion of macro ‘__RD8’
 #define __RD16(_x) (((_x) & 0x0000ff00) ? __RD8((_x)>>8)<<8    : __RD8(_x))
                                                                  ^~~~~
./include/xen/interface/io/ring.h:19:66: note: in expansion of macro ‘__RD16’
 #define __RD32(_x) (((_x) & 0xffff0000) ? __RD16((_x)>>16)<<16 : __RD16(_x))
                                                                  ^~~~~~
/var/lib/dkms/blktap/2.0.93/build/linux-blktap.h:117:8: note: in expansion of macro ‘__RD32’
  ((int)__RD32((BLKTAP_PAGE_SIZE -    \
        ^~~~~~
/var/lib/dkms/blktap/2.0.93/build/blktap.h:77:41: note: in expansion of macro ‘BLKTAP_RING_SIZE’
  struct blktap_request         *pending[BLKTAP_RING_SIZE];
                                         ^~~~~~~~~~~~~~~~
/var/lib/dkms/blktap/2.0.93/build/ring.c:187:14: error: initialization from incompatible pointer type [-Werror=incompatible-pointer-types]
  .fault    = blktap_ring_fault,
              ^~~~~~~~~~~~~~~~~
/var/lib/dkms/blktap/2.0.93/build/ring.c:187:14: note: (near initialization for ‘blktap_ring_vm_operations.fault’)
cc1: some warnings being treated as errors
scripts/Makefile.build:294: recipe for target '/var/lib/dkms/blktap/2.0.93/build/ring.o' failed
make[1]: *** [/var/lib/dkms/blktap/2.0.93/build/ring.o] Error 1
Makefile:1526: recipe for target '_module_/var/lib/dkms/blktap/2.0.93/build' failed
make: *** [_module_/var/lib/dkms/blktap/2.0.93/build] Error 2
make: Leaving directory '/usr/src/linux-headers-4.11.0-3-generic'