GitHub pull request #2924 of commit 13f972f5521132c5c6d8070f224433487edc7134, no merge conflicts.sha1origin/pr/2924/mergeghprbActualCommit13f972f5521132c5c6d8070f224433487edc7134ghprbActualCommitAuthorghprbActualCommitAuthorEmailghprbAuthorRepoGitUrlhttps://github.com/kinvolk/bcc.gitghprbTriggerAuthorghprbTriggerAuthorEmailghprbTriggerAuthorLoginyonghong-songghprbTriggerAuthorLoginMention@yonghong-songghprbPullId2924ghprbTargetBranchmasterghprbSourceBranchmauricio/fix-kfunc-supportGIT_BRANCHmauricio/fix-kfunc-supportghprbPullAuthorEmailmauriciovasquezbernal@gmail.comghprbPullAuthorLoginmauriciovasquezbernalghprbPullAuthorLoginMention@mauriciovasquezbernalghprbPullDescriptionGitHub pull request #2924 of commit 13f972f5521132c5c6d8070f224433487edc7134, no merge conflicts.ghprbPullTitleFix KFUNC_PROBE return valueghprbPullLinkhttps://github.com/iovisor/bcc/pull/2924ghprbPullLongDescriptionThe KFUNC_PROBE macro is using \"void\" as return type, this is causing problems\r\nin some tools that have a filtering enable that returns 0.\r\n\r\nReproducer: (Notice that it requires BTF support)\r\n\r\n```\r\n$ python opensnoop.py --pid 5\r\n/virtual/main.c:33:21: error: void function '____kretfunc__do_sys_open' should not return a value [-Wreturn-type]\r\n if (pid != 5) { return 0; }\r\n ^ ~\r\n1 error generated.\r\n...\r\n```\r\nSigned-off-by: Mauricio Vásquez <mauricio@kinvolk.io>\r\n\r\nFIxes changes made in https://github.com/iovisor/bcc/pull/2726.ghprbCommentBody[buildbot, ok to test]ghprbGhRepositoryiovisor/bccghprbCredentialsId6d3daf13-69b8-48b1-9c8f-ec5353264113false<a title="Fix KFUNC_PROBE return value" href="https://github.com/iovisor/bcc/pull/2924">PR #2924</a>: Fix KFUNC_PROBE return value#48816548697460664bcc-pr #488488false4883905SUCCESS1590084731213https://buildbot.iovisor.org/jenkins/user/yonghong-song/my-views/view/all/job/bcc-pr/488/git488https://buildbot.iovisor.org/jenkins/user/yonghong-song/my-views/view/all/job/bcc-pr/label=fc25/488/488https://buildbot.iovisor.org/jenkins/user/yonghong-song/my-views/view/all/job/bcc-pr/label=fc26/488/488https://buildbot.iovisor.org/jenkins/user/yonghong-song/my-views/view/all/job/bcc-pr/label=fc27/488/488https://buildbot.iovisor.org/jenkins/user/yonghong-song/my-views/view/all/job/bcc-pr/label=fc28/488/488https://buildbot.iovisor.org/jenkins/user/yonghong-song/my-views/view/all/job/bcc-pr/label=ubuntu1604/488/488https://buildbot.iovisor.org/jenkins/user/yonghong-song/my-views/view/all/job/bcc-pr/label=ubuntu1710/488/488https://buildbot.iovisor.org/jenkins/user/yonghong-song/my-views/view/all/job/bcc-pr/label=ubuntu1804/488/