tools/bpftool: Fix build slowdown

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Commit ba2fd563b7 ("tools/bpftool: Support passing BPFTOOL_VERSION to
make") changed BPFTOOL_VERSION to a recursively expanded variable,
forcing it to be recomputed on every expansion of CFLAGS and
dramatically slowing down the bpftool build. Restore BPFTOOL_VERSION as
a simply expanded variable, guarded by an ifeq().

Fixes: ba2fd563b7 ("tools/bpftool: Support passing BPFTOOL_VERSION to make")
Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20201110164310.2600671-8-jean-philippe@linaro.org

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Jean-Philippe Brucker 2020-11-10 17:43:11 +01:00 • committed by Andrii Nakryiko

parent 2d9393fefb

commit 0639e5e97a

1 changed files with 3 additions and 1 deletions

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tools/bpf/bpftool/Makefile

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