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[Po-Hsu Lin <1944613@xxxxxxxxxxxxxxxxxx>]

** Changed in: ubuntu-kernel-tests
       Status: New => Fix Released

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https://bugs.launchpad.net/bugs/1944613

Title:
  memfd from ubuntu_kernel_selftests failed to build on B-5.4 (unknown
  type name ‘__u64’)

Status in ubuntu-kernel-tests:
  Fix Released
Status in linux package in Ubuntu:
  Fix Released
Status in linux-hwe-5.4 package in Ubuntu:
  Invalid
Status in linux source package in Bionic:
  Invalid
Status in linux-hwe-5.4 source package in Bionic:
  Fix Released
Status in linux source package in Focal:
  Fix Released
Status in linux-hwe-5.4 source package in Focal:
  Invalid

Bug description:
  [Impact]
  BugLink: https://bugs.launchpad.net/bugs/1944613

  There are build issues in selftests/memfd/fuse_test.c where __u64 is not 
  defined. This is issue is probably due to the fact that in 5.4 there is
  a type include in one of the includes in the file, however this include
  probably was not there for 4.15. Regardless we fix this by including the 
  type file directly. 

  [Fix]
  * selftests/memfd: fix __u64 not defined build issue
  Add #include <asm/types.h> to define the type

  [Test Plan]
  Recompile tests to make sure they build and tests pass.

  [Where problems could occur]
  Should be no problems since we are adding an include file that userspace
  files always have access to. 

  --------------------------------------------------------------------------

  
  Failed to build on B/linux-hwe-5.4 5.4.0-85.95~18.04.1. This was observed in previous cycles.
  I am working on a fix for it right now.

    13203 	  	fuse_test.c:63:8: error: unknown type name ‘__u64’
        13204 	  	 static __u64 mfd_assert_get_seals(int fd)
        13205 	  	        ^~~~~
        13206 	  	fuse_test.c:76:42: error: unknown type name ‘__u64’; did you mean ‘__f64’?
        13207 	  	 static void mfd_assert_has_seals(int fd, __u64 seals)
        13208 	  	                                          ^~~~~
        13209 	  	                                          __f64
        13210 	  	fuse_test.c:88:42: error: unknown type name ‘__u64’; did you mean ‘__f64’?
        13211 	  	 static void mfd_assert_add_seals(int fd, __u64 seals)
        13212 	  	                                          ^~~~~
        13213 	  	                                          __f64
        13214 	  	fuse_test.c:102:39: error: unknown type name ‘__u64’; did you mean ‘__f64’?
        13215 	  	 static int mfd_busy_add_seals(int fd, __u64 seals)
        13216 	  	                                       ^~~~~
        13217 	  	                                       __f64
        13218 	  	fuse_test.c: In function ‘sealing_thread_fn’:
        13219 	  	fuse_test.c:185:6: warning: implicit declaration of function ‘mfd_busy_add_seals’; did you mean ‘mfd_assert_get_seals’? [-Wimplicit-function-declaration]
        13220 	  	  r = mfd_busy_add_seals(global_mfd, F_SEAL_WRITE);
        13221 	  	      ^~~~~~~~~~~~~~~~~~
        13222 	  	      mfd_assert_get_seals
        13223 	  	fuse_test.c:193:3: warning: implicit declaration of function ‘mfd_assert_add_seals’; did you mean ‘mfd_assert_get_seals’? [-Wimplicit-function-declaration]
        13224 	  	   mfd_assert_add_seals(global_mfd, F_SEAL_WRITE);
        13225 	  	   ^~~~~~~~~~~~~~~~~~~~
        13226 	  	   mfd_assert_get_seals
        13227 	  	fuse_test.c: In function ‘main’:
        13228 	  	fuse_test.c:302:2: warning: implicit declaration of function ‘mfd_assert_has_seals’; did you mean ‘mfd_assert_get_seals’? [-Wimplicit-function-declaration]
        13229 	  	  mfd_assert_has_seals(mfd, F_SEAL_WRITE);
        13230 	  	  ^~~~~~~~~~~~~~~~~~~~
        13231 	  	  mfd_assert_get_seals
        13232 	  	make[1]: *** [/home/ubuntu/autotest/client/tmp/ubuntu_kernel_selftests/src/linux/tools/testing/selftests/memfd/fuse_test] Error 1
        13233 	  	make: *** [all] Error 2

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