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kheaders: avoid unnecessary process forks of grep

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Exclude include/generated/{utsversion.h,autoconf.h} by using the -path
option to reduce the cost of forking new processes.

No functional changes are intended.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
This commit is contained in:
Masahiro Yamada 2024-12-18 19:37:06 +09:00
parent 41e86fe7eb
commit de0cae9273
1 changed files with 3 additions and 3 deletions
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6
kernel/gen_kheaders.sh
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@ -48,9 +48,9 @@ all_dirs="$all_dirs $dir_list"
# check include/generated/autoconf.h explicitly.
#
# Ignore them for md5 calculation to avoid pointless regeneration.
headers_md5="$(find $all_dirs -name "*.h" |
grep -v "include/generated/utsversion.h" |
grep -v "include/generated/autoconf.h" |
headers_md5="$(find $all_dirs -name "*.h" -a \
! -path include/generated/utsversion.h -a \
! -path include/generated/autoconf.h |
xargs ls -l | md5sum | cut -d ' ' -f1)"
# Any changes to this script will also cause a rebuild of the archive.