GitHub pull request #3103 of commit ad4fbf2ffea005d2da8db7883b7904a6bb870f14, no merge conflicts.sha1origin/pr/3103/mergeghprbActualCommitad4fbf2ffea005d2da8db7883b7904a6bb870f14ghprbActualCommitAuthorghprbActualCommitAuthorEmailghprbAuthorRepoGitUrlhttps://github.com/ethercflow/bcc.gitghprbTriggerAuthorghprbTriggerAuthorEmailghprbTriggerAuthorLoginyonghong-songghprbTriggerAuthorLoginMention@yonghong-songghprbPullId3103ghprbTargetBranchmasterghprbSourceBranchrefactorGIT_BRANCHrefactorghprbPullAuthorEmailethercflow@gmail.comghprbPullAuthorLoginethercflowghprbPullAuthorLoginMention@ethercflowghprbPullDescriptionGitHub pull request #3103 of commit ad4fbf2ffea005d2da8db7883b7904a6bb870f14, no merge conflicts.ghprbPullTitlelibbpf-tools: make some minor refactoringghprbPullLinkhttps://github.com/iovisor/bcc/pull/3103ghprbPullLongDescription- Unify the filtering of blk tools\r\n- Remove the meaningless function name prefix \r\n- Fix several incorrect parameter description\r\n- Fix sth like: `char*` -> `const char *`, `(double)val * n` -> `var * n.0`\r\n- Supplement the missing license or copyright \r\n\r\nSigned-off-by: Wenbo Zhang <ethercflow@gmail.com>ghprbCommentBody[buildbot, test this please]ghprbGhRepositoryiovisor/bccghprbCredentialsId6d3daf13-69b8-48b1-9c8f-ec5353264113false<a title="libbpf-tools: make some minor refactoring" href="https://github.com/iovisor/bcc/pull/3103">PR #3103</a>: libbpf-tools: make some min...#69510950657460664bcc-pr #695695false6955568SUCCESS1601342034763https://buildbot.iovisor.org/jenkins/user/a.s.protopopov/my-views/view/all/job/bcc-pr/695/git695https://buildbot.iovisor.org/jenkins/user/a.s.protopopov/my-views/view/all/job/bcc-pr/label=fc25/695/695https://buildbot.iovisor.org/jenkins/user/a.s.protopopov/my-views/view/all/job/bcc-pr/label=fc26/695/695https://buildbot.iovisor.org/jenkins/user/a.s.protopopov/my-views/view/all/job/bcc-pr/label=fc27/695/695https://buildbot.iovisor.org/jenkins/user/a.s.protopopov/my-views/view/all/job/bcc-pr/label=fc28/695/695https://buildbot.iovisor.org/jenkins/user/a.s.protopopov/my-views/view/all/job/bcc-pr/label=ubuntu1604/695/695https://buildbot.iovisor.org/jenkins/user/a.s.protopopov/my-views/view/all/job/bcc-pr/label=ubuntu1710/695/695https://buildbot.iovisor.org/jenkins/user/a.s.protopopov/my-views/view/all/job/bcc-pr/label=ubuntu1804/695/