test-patches: Set default number of jobs to number of available processors

With the current default of 1, most users are going to be kept waiting
unncessarily.

debian/bin/test-patches

@@ -20,12 +20,13 @@ else
 fi
 
 fuzz=0
+jobs=$(nproc)
 
 eval "set -- $(getopt -n "$0" -o "f:j:s:" -l "fuzz:" -- "$@")"
 while true; do
     case "$1" in
 	-f) flavour="$2"; shift 2 ;;
-	-j) export MAKEFLAGS="$MAKEFLAGS -j$2"; shift 2 ;;
+	-j) jobs="$2"; shift 2 ;;
 	-s) featureset="$2"; shift 2 ;;
 	--fuzz) fuzz="$2"; shift 2;;
 	--) shift 1; break ;;
@@ -38,6 +39,7 @@ if [ $# -lt 1 ]; then
 Options:
      -f <flavour>     specify the 'flavour' of kernel to build, e.g. 686-pae
      -j <jobs>        specify number of compiler jobs to run in parallel
+                      (default: number of available processors)
      -s <featureset>  specify an optional featureset to apply, e.g. rt
      --fuzz <num>     set the maximum patch fuzz factor (default: 0)
 EOF
@@ -50,6 +52,7 @@ if [ -z "$flavour" ]; then
 fi
 
 export DEB_BUILD_PROFILES=pkg.linux.notools
+export MAKEFLAGS="$MAKEFLAGS -j$jobs"
 
 dpkg-checkbuilddeps -B
 

debian/changelog

@@ -129,6 +129,7 @@ linux (4.9.8-1) UNRELEASED; urgency=medium
   * cpumask: use nr_cpumask_bits for parsing functions (Closes: #848682)
   * pegasus: Use heap buffers for all register access (Closes: #852556)
   * test-patches: Use the pkg.linux.notools build profile
+  * test-patches: Set default number of jobs to number of available processors
 
   [ Roger Shimizu ]
   * [armel] ARM: dts: orion5x-lschl: Fix model name