[RFC PATCH 0/3] scripts: headers_install: avoid some reprocessing

[David Disseldorp <ddiss@suse.de>]

scripts/headers_install.sh is relatively inefficient: it parses/modifies
headers via unifdef and three sed invocations, with sed output
post-processed via grep in one case (user-space CONFIG_ leaks).

These patches attempt to improve efficiency by merging two sed calls
and processing user-space CONFIG_ leak filters inline.

Unfortunately my parallel / sync headers_install benchmarks didn't show
meaningful performance improvements, hence the RFC tag.

Output is unaffected. License and CONFIG leak checks have been manually
tested via error injection.

David Disseldorp (3):
      scripts: headers_install: move config_leak_ignores assignment
      scripts: headers_install: filter ignored configs via sed
      scripts: headers_install: avoid license check fork

 scripts/headers_install.sh | 85 ++++++++++++++++++--------------------
 1 file changed, 40 insertions(+), 45 deletions(-)