** Description changed:
[Impact]
While debugging bug 1910277, I found that the test compilation will print
some warnings:
- memfd_test.c:64:7: warning: implicit declaration of function ‘open’;
- memfd_test.c:90:6: warning: implicit declaration of function ‘fcntl’
- memfd_test.c:397:6: warning: implicit declaration of function ‘fallocate’;
- fuse_test.c:67:6: warning: implicit declaration of function ‘fcntl’
- fuse_test.c:261:7: warning: implicit declaration of function ‘open’;
+ memfd_test.c:64:7: warning: implicit declaration of function ‘open’;
+ memfd_test.c:90:6: warning: implicit declaration of function ‘fcntl’
+ memfd_test.c:397:6: warning: implicit declaration of function ‘fallocate’;
+ fuse_test.c:67:6: warning: implicit declaration of function ‘fcntl’
+ fuse_test.c:261:7: warning: implicit declaration of function ‘open’;
[Fix]
* 1c49e3783f8899 ("selftests/memfd: Fix implicit declaration warnings")
+ This fix can be cherry-picked into F/G/H and compiled without any issue.
+
[Test Case]
Build the memfd test in kselftests with:
- sudo make TARGETS=memfd
+ sudo make TARGETS=memfd
With this fix, these warnings will be gone.
[Where problems could occur]
- This fix is just for fixing the test case compilation, it's beyond my
imagination to see where the potential problems lies within.
+ This fix is just for fixing the test case compilation, if we need to fix it
on older release X/B, this patch will cause compilation errors as they're
missing some other vital commits, since we're not running this test on older
releases I think it's fine to ignore them for now.
** Description changed:
[Impact]
While debugging bug 1910277, I found that the test compilation will print
some warnings:
memfd_test.c:64:7: warning: implicit declaration of function ‘open’;
memfd_test.c:90:6: warning: implicit declaration of function ‘fcntl’
memfd_test.c:397:6: warning: implicit declaration of function ‘fallocate’;
fuse_test.c:67:6: warning: implicit declaration of function ‘fcntl’
fuse_test.c:261:7: warning: implicit declaration of function ‘open’;
[Fix]
* 1c49e3783f8899 ("selftests/memfd: Fix implicit declaration warnings")
This fix can be cherry-picked into F/G/H and compiled without any issue.
[Test Case]
Build the memfd test in kselftests with:
sudo make TARGETS=memfd
With this fix, these warnings will be gone.
[Where problems could occur]
- This fix is just for fixing the test case compilation, if we need to fix it
on older release X/B, this patch will cause compilation errors as they're
missing some other vital commits, since we're not running this test on older
releases I think it's fine to ignore them for now.
+ This fix is just for fixing the test case compilation, so it's not affecting
real kernel functionality. If we need to fix it on older release X/B, this
patch will cause compilation errors as they're missing some other vital
commits, since we're not running this test on older releases I think it's fine
to ignore them for now.
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https://bugs.launchpad.net/bugs/1910323
Title:
Fix implicit declaration warnings for kselftests/memfd test on newer
releases
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