[OS-BUILD PATCHv3] redhat/configs/process_configs.sh: Fix race with tools generation

[Prarit Bhargava (via Email Bridge)]

From: Prarit Bhargava <prarit(a)redhat.com&gt;

redhat/configs/process_configs.sh: Fix race with tools generation

Kernel builds are occasionally failing with (for example):

Processing
/home/prarit/rpmbuild/BUILD/kernel-5.17/linux-5.17.0-0.test.fc35.x86_64/configs/kernel-5.17.0-s390x.config
...
Processing
/home/prarit/rpmbuild/BUILD/kernel-5.17/linux-5.17.0-0.test.fc35.x86_64/configs/kernel-5.17.0-x86_64-debug.config
...
Processing
/home/prarit/rpmbuild/BUILD/kernel-5.17/linux-5.17.0-0.test.fc35.x86_64/configs/kernel-5.17.0-x86_64.config
...
/bin/sh: line 1: scripts/basic/fixdep: Text file busy
make[1]: *** [scripts/Makefile.host:95: scripts/basic/fixdep] Error 126
make[1]: *** Deleting file 'scripts/basic/fixdep'
make: *** [Makefile:559: scripts_basic] Error 2
/bin/sh: line 1: scripts/basic/fixdep: Text file busy
make[1]: *** [scripts/Makefile.host:95: scripts/basic/fixdep] Error 126
make[1]: *** Deleting file 'scripts/basic/fixdep'
make: *** [Makefile:559: scripts_basic] Error 2

This occurs because the makes are conflicting with one another to create
the same files.  This can be fixed by having the first make run on it's
own, and then having the remainder run in parallel.

Signed-off-by: Prarit Bhargava <prarit(a)redhat.com&gt;

diff --git a/redhat/configs/process_configs.sh b/redhat/configs/process_configs.sh
index blahblah..blahblah 100755
--- a/redhat/configs/process_configs.sh
+++ b/redhat/configs/process_configs.sh
@@ -304,6 +304,10 @@ function process_configs()
 	count=0
 	for cfg in "$SCRIPT_DIR/${PACKAGE_NAME}${KVERREL}${SUBARCH}"*.config
 	do
+		if [ "$count" -eq 0 ]; then
+			# do the first one by itself so that tools are built
+			process_config "$cfg" "$count"
+		fi
 		process_config "$cfg" "$count" &
 		waitpids[${count}]=$!
 		((count++))

--
https://gitlab.com/cki-project/kernel-ark/-/merge_requests/1673