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Date:   Wed,  1 May 2019 22:45:59 +0900
From:   Masahiro Yamada <>
To:     Daniel Borkmann <>
Cc:     Quentin Monnet <>,
        Masahiro Yamada <>,
        Sirio Balmelli <>,
        Song Liu <>,
        Alexei Starovoitov <>,,
        Yonghong Song <>,
        Taeung Song <>,,
        Jakub Kicinski <>,
        Martin KaFai Lau <>,
Subject: [PATCH v2] bpftool: exclude bash-completion/bpftool from .gitignore pattern

tools/bpf/bpftool/.gitignore has the "bpftool" pattern, which is
intended to ignore the following build artifact:


However, the .gitignore entry is effective not only for the current
directory, but also for any sub-directories.

So, from the point of .gitignore grammar, the following check-in file
is also considered to be ignored:


As the manual gitignore(5) says "Files already tracked by Git are not
affected", this is not a problem as far as Git is concerned.

However, Git is not the only program that parses .gitignore because
.gitignore is useful to distinguish build artifacts from source files.

For example, tar(1) supports the --exclude-vcs-ignore option. As of
writing, this option does not work perfectly, but it intends to create
a tarball excluding files specified by .gitignore.

So, I believe it is better to fix this issue.

You can fix it by prefixing the pattern with a slash; the leading slash
means the specified pattern is relative to the current directory.

Signed-off-by: Masahiro Yamada <>

Changes in v2:
  - Add more information to the commit log to clarify my main motivation
  - Touch "bpftool" pattern only

 tools/bpf/bpftool/.gitignore | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/bpf/bpftool/.gitignore b/tools/bpf/bpftool/.gitignore
index 67167e4..8248b8d 100644
--- a/tools/bpf/bpftool/.gitignore
+++ b/tools/bpf/bpftool/.gitignore
@@ -1,5 +1,5 @@

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