When multiple kernel versions have been specified in the argument list, only run checkpatch and sparse on the first specified kernel version. For the other kernel versions, compile the kernel source code but do not run checkpatch or sparse.

git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@757 d57e44dd-8a1f-0410-8b47-8ef2f437770f

scripts/run-regression-tests

@@ -328,6 +328,27 @@ function compile_patched_kernel {
   return 0
 }
 
+# Compile subdirectory $2 of the patched kernel tree linux-$1.
+function compile_kernel {
+  local kver="$(kernel_version $1)"
+  local plevel="$(patchlevel $1)"
+  local outputfile="${outputdir}/compilation-$1-output.txt"
+  local subdir="$2"
+
+  echo "Compiling the patched kernel ..."
+  (
+    cd "${outputdir}/linux-$1" \
+    && make -s prepare \
+    && make -s scripts \
+    && LC_ALL=C make -k M="${subdir}"
+  ) &> "${outputfile}"
+  local errors=$(grep -c ' error:' "${outputfile}")
+  local warnings=$(grep -c ' warning:' "${outputfile}")
+  echo "${errors} errors / ${warnings} warnings."
+  cat "${outputfile}" | grep -E 'warning:|error:' | sort | uniq -c
+  return 0
+}
+
 # Run the source code verification tool 'sparse' on the SCST code. Assumes that
 # there is a patched kernel tree present in directory "${outputdir}/linux-$1".
 # For more information about endianness annotations, see also
@@ -336,13 +357,14 @@ function run_sparse {
   local kver="$(kernel_version $1)"
   local plevel="$(patchlevel $1)"
   local outputfile="${outputdir}/sparse-$1-output.txt"
+  local subdir="$2"
 
   echo "Running sparse on the patched kernel ..."
   (
     cd "${outputdir}/linux-$1" \
     && make -s prepare \
     && make -s scripts \
-    && LC_ALL=C make -k C=2 M=drivers/scst # CF=-D__CHECK_ENDIAN__
+    && LC_ALL=C make -k C=2 M="${subdir}" # CF=-D__CHECK_ENDIAN__
   ) &> "${outputfile}"
   local errors=$(grep -c ' error:' "${outputfile}")
   local warnings=$(grep -c ' warning:' "${outputfile}")
@@ -501,6 +523,7 @@ test_scst_tree_patches || exit $?
 compile_scst_unpatched || exit $?
 compile_scst_patched || exit $?
 
+first_iteration="true"
 for k in ${kernel_versions}
 do
   echo "===================="
@@ -510,9 +533,15 @@ do
   download_kernel $k || continue
   generate_kernel_patch $k || continue
   test_if_patch_applies_cleanly $k || continue
-  run_checkpatch $k
-  patch_and_configure_kernel $k
-  run_sparse $k
+  if [ "${first_iteration}" = "true" ]; then
+    first_iteration="false"
+    run_checkpatch $k
+    patch_and_configure_kernel $k
+    run_sparse $k drivers/scst
+  else
+    patch_and_configure_kernel $k
+    compile_kernel $k drivers/scst
+  fi
   # run_headers_check $k
   [ "${full_check}" = "true" ] || continue
   compile_patched_kernel $k