scripts/pahole-flags.sh: Use pahole-version.sh

Use pahole-version.sh to get pahole's version code to reduce the amount
of duplication across the tree.

Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20220201205624.652313-4-nathan@kernel.org
(cherry picked from bpf-next commit 2d6c9810eb8915c4ddede707b8e167a1d919e1ca)
Signed-off-by: Dimitri John Ledkov <dimitri.ledkov@canonical.com>
Signed-off-by: Paolo Pisati <paolo.pisati@canonical.com>

diff --git a/scripts/pahole-flags.sh b/scripts/pahole-flags.sh
index 2b99fc77019ced6bf9f63e3c9d9926c50558557e..ac8b23787427a5522724c467019bb7ec9ac80e16 100755 (executable)
--- a/scripts/pahole-flags.sh
+++ b/scripts/pahole-flags.sh
@@ -7,7 +7,7 @@ if ! [ -x "$(command -v ${PAHOLE})" ]; then
        return
 fi
 
-pahole_ver=$(${PAHOLE} --version | sed -E 's/v([0-9]+)\.([0-9]+)/\1\2/')
+pahole_ver=$($(dirname $0)/pahole-version.sh ${PAHOLE})
 
 if [ "${pahole_ver}" -ge "118" ] && [ "${pahole_ver}" -le "121" ]; then
        # pahole 1.18 through 1.21 can't handle zero-sized per-CPU vars