Merge tag 'kbuild-misc-v4.15' of git://git.kernel.org/pub/scm/linux/k…

…ernel/git/masahiroy/linux-kbuild

Pull Kbuild misc updates from Masahiro Yamada:

 - Clean up and fix RPM package build

 - Fix a warning in DEB package build

 - Improve coccicheck script

 - Improve some semantic patches

* tag 'kbuild-misc-v4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
  docs: dev-tools: coccinelle: delete out of date wiki reference
  coccinelle: orplus: reorganize to improve performance
  coccinelle: use exists to improve efficiency
  builddeb: Pass the kernel:debarch substvar to dpkg-genchanges
  Coccinelle: use false positive annotation
  coccinelle: fix verbose message about .cocci file being run
  coccinelle: grep Options and Requires fields more precisely
  Coccinelle: make DEBUG_FILE option more useful
  coccinelle: api: detect identical chip data arrays
  coccinelle: Improve setup_timer.cocci matching
  Coccinelle: setup_timer: improve messages from setup_timer
  kbuild: rpm-pkg: do not force -jN in submake
  kbuild: rpm-pkg: keep spec file until make mrproper
  kbuild: rpm-pkg: fix jobserver unavailable warning
  kbuild: rpm-pkg: replace $RPM_BUILD_ROOT with %{buildroot}
  kbuild: rpm-pkg: fix build error when CONFIG_MODULES is disabled
  kbuild: rpm-pkg: refactor mkspec with here doc
  kbuild: rpm-pkg: clean up mkspec
  kbuild: rpm-pkg: install vmlinux.bz2 unconditionally
  kbuild: rpm-pkg: remove ppc64 specific image handling

.gitignore

@@ -55,6 +55,11 @@ modules.builtin
 /System.map
 /Module.markers
 
+#
+# RPM spec file (make rpm-pkg)
+#
+/*.spec
+
 #
 # Debian directory (make deb-pkg)
 #

Documentation/dev-tools/coccinelle.rst

@@ -33,9 +33,6 @@ of many distributions, e.g. :
 You can get the latest version released from the Coccinelle homepage at
 http://coccinelle.lip6.fr/
 
-Information and tips about Coccinelle are also provided on the wiki
-pages at http://cocci.ekstranet.diku.dk/wiki/doku.php
-
 Once you have it, run the following command::
 
      	./configure

scripts/coccicheck

@@ -123,15 +123,8 @@ run_cmd_parmap() {
 	if [ $VERBOSE -ne 0 ] ; then
 		echo "Running ($NPROC in parallel): $@"
 	fi
-	if [ "$DEBUG_FILE" != "/dev/null" -a "$DEBUG_FILE" != "" ]; then
-		if [ -f $DEBUG_FILE ]; then
-			echo "Debug file $DEBUG_FILE exists, bailing"
-			exit
-		fi
-	else
-		DEBUG_FILE="/dev/null"
-	fi
-	$@ 2>$DEBUG_FILE
+	echo $@ >>$DEBUG_FILE
+	$@ 2>>$DEBUG_FILE
 	if [[ $? -ne 0 ]]; then
 		echo "coccicheck failed"
 		exit $?
@@ -176,8 +169,8 @@ OPTIONS="$OPTIONS $SPFLAGS"
 coccinelle () {
     COCCI="$1"
 
-    OPT=`grep "Option" $COCCI | cut -d':' -f2`
-    REQ=`grep "Requires" $COCCI | cut -d':' -f2 | sed "s| ||"`
+    OPT=`grep "Options:" $COCCI | cut -d':' -f2`
+    REQ=`grep "Requires:" $COCCI | cut -d':' -f2 | sed "s| ||"`
     REQ_NUM=$(echo $REQ | ${DIR}/scripts/ld-version.sh)
     if [ "$REQ_NUM" != "0" ] ; then
 	    if [ "$SPATCH_VERSION_NUM" -lt "$REQ_NUM" ] ; then
@@ -194,7 +187,7 @@ coccinelle () {
 
     if [ $VERBOSE -ne 0 -a $ONLINE -eq 0 ] ; then
 
-	FILE=`echo $COCCI | sed "s|$srctree/||"`
+	FILE=${COCCI#$srctree/}
 
 	echo "Processing `basename $COCCI`"
 	echo "with option(s) \"$OPT\""
@@ -247,6 +240,15 @@ coccinelle () {
 
 }
 
+if [ "$DEBUG_FILE" != "/dev/null" -a "$DEBUG_FILE" != "" ]; then
+	if [ -f $DEBUG_FILE ]; then
+		echo "Debug file $DEBUG_FILE exists, bailing"
+		exit
+	fi
+else
+	DEBUG_FILE="/dev/null"
+fi
+
 if [ "$COCCI" = "" ] ; then
     for f in `find $srctree/scripts/coccinelle/ -name '*.cocci' -type f | sort`; do
 	coccinelle $f

scripts/coccinelle/api/check_bq27xxx_data.cocci

@@ -0,0 +1,161 @@
+/// Detect BQ27XXX_DATA structures with identical registers, dm registers or
+/// properties.
+//# Doesn't unfold macros used in register or property fields.
+//# Requires OCaml scripting
+///
+// Confidence: High
+// Copyright: (C) 2017 Julia Lawall, Inria/LIP6, GPLv2.
+// URL: http://coccinelle.lip6.fr/
+// Requires: 1.0.7
+// Keywords: BQ27XXX_DATA
+
+virtual report
+
+@initialize:ocaml@
+@@
+
+let print_report p msg =
+  let p = List.hd p in
+  Printf.printf "%s:%d:%d-%d: %s" p.file p.line p.col p.col_end msg
+
+@str depends on report@
+type t;
+identifier i,i1,i2;
+expression e1,e2;
+@@
+
+t i[] = {
+  ...,
+  [e1] = BQ27XXX_DATA(i1,...),
+  ...,
+  [e2] = BQ27XXX_DATA(i2,...),
+  ...,
+};
+
+@script:ocaml tocheck@
+i1 << str.i1;
+i2 << str.i2;
+i1regs; i2regs;
+i1dmregs; i2dmregs;
+i1props; i2props;
+@@
+
+if not(i1 = i2)
+then
+  begin
+    i1regs := make_ident (i1 ^ "_regs");
+    i2regs := make_ident (i2 ^ "_regs");
+    i1dmregs := make_ident (i1 ^ "_dm_regs");
+    i2dmregs := make_ident (i2 ^ "_dm_regs");
+    i1props := make_ident (i1 ^ "_props");
+    i2props := make_ident (i2 ^ "_props")
+  end
+
+(* ---------------------------------------------------------------- *)
+
+@getregs1@
+typedef u8;
+identifier tocheck.i1regs;
+initializer list i1regs_vals;
+position p1;
+@@
+
+u8 i1regs@p1[...] = { i1regs_vals, };
+
+@getregs2@
+identifier tocheck.i2regs;
+initializer list i2regs_vals;
+position p2;
+@@
+
+u8 i2regs@p2[...] = { i2regs_vals, };
+
+@script:ocaml@
+(_,i1regs_vals) << getregs1.i1regs_vals;
+(_,i2regs_vals) << getregs2.i2regs_vals;
+i1regs << tocheck.i1regs;
+i2regs << tocheck.i2regs;
+p1 << getregs1.p1;
+p2 << getregs2.p2;
+@@
+
+if i1regs < i2regs &&
+   List.sort compare i1regs_vals = List.sort compare i2regs_vals
+then
+  let msg =
+    Printf.sprintf
+      "WARNING %s and %s (line %d) are identical\n"
+      i1regs i2regs (List.hd p2).line in
+  print_report p1 msg
+
+(* ---------------------------------------------------------------- *)
+
+@getdmregs1@
+identifier tocheck.i1dmregs;
+initializer list i1dmregs_vals;
+position p1;
+@@
+
+struct bq27xxx_dm_reg i1dmregs@p1[] = { i1dmregs_vals, };
+
+@getdmregs2@
+identifier tocheck.i2dmregs;
+initializer list i2dmregs_vals;
+position p2;
+@@
+
+struct bq27xxx_dm_reg i2dmregs@p2[] = { i2dmregs_vals, };
+
+@script:ocaml@
+(_,i1dmregs_vals) << getdmregs1.i1dmregs_vals;
+(_,i2dmregs_vals) << getdmregs2.i2dmregs_vals;
+i1dmregs << tocheck.i1dmregs;
+i2dmregs << tocheck.i2dmregs;
+p1 << getdmregs1.p1;
+p2 << getdmregs2.p2;
+@@
+
+if i1dmregs < i2dmregs &&
+   List.sort compare i1dmregs_vals = List.sort compare i2dmregs_vals
+then
+  let msg =
+    Printf.sprintf
+      "WARNING %s and %s (line %d) are identical\n"
+      i1dmregs i2dmregs (List.hd p2).line in
+  print_report p1 msg
+
+(* ---------------------------------------------------------------- *)
+
+@getprops1@
+identifier tocheck.i1props;
+initializer list[n1] i1props_vals;
+position p1;
+@@
+
+enum power_supply_property i1props@p1[] = { i1props_vals, };
+
+@getprops2@
+identifier tocheck.i2props;
+initializer list[n2] i2props_vals;
+position p2;
+@@
+
+enum power_supply_property i2props@p2[] = { i2props_vals, };
+
+@script:ocaml@
+(_,i1props_vals) << getprops1.i1props_vals;
+(_,i2props_vals) << getprops2.i2props_vals;
+i1props << tocheck.i1props;
+i2props << tocheck.i2props;
+p1 << getprops1.p1;
+p2 << getprops2.p2;
+@@
+
+if i1props < i2props &&
+   List.sort compare i1props_vals = List.sort compare i2props_vals
+then
+  let msg =
+    Printf.sprintf
+      "WARNING %s and %s (line %d) are identical\n"
+      i1props i2props (List.hd p2).line in
+  print_report p1 msg