Merge branch 'misc' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild

Pull misc kbuild updates from Michal Marek:
 - deb-pkg:
     + module signing fix
     + dtb files are added to the package
     + do not require `hostname -f` to work during build
     + make deb-pkg generates a source package, bindeb-pkg has been
       added to only generate the binary package
 - rpm-pkg packages /lib/modules as well
 - new coccinelle patch and updates to existing ones
 - new stackusage & stackdelta script to collect and compare stack usage
   info (using gcc's -fstack-usage)
 - make tags understands trace_*_rcuidle() macros
 - .gitignore updates, misc cleanups

* 'misc' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild: (27 commits)
  deb-pkg: add source package
  package/Makefile: move source tar creation to a function
  scripts: add stackdelta script
  kbuild: remove *.su files generated by -fstack-usage
  .gitignore: add *.su pattern
  scripts: add stackusage script
  kbuild: avoid listing /lib/modules in kernel spec file
  fallback to hostname in scripts/package/builddeb
  coccinelle: api: extend spatch for dropping unnecessary owner
  deb-pkg: simplify directory creation
  scripts/tags.sh: Include trace_*_rcuidle() in tags
  scripts/package/Makefile: rpmbuild is needed for rpm targets
  Kbuild: Add ID files to .gitignore
  gitignore: Add MIPS vmlinux.32 to the list
  coccinelle: simple_return: Add a blank line
  coccinelle: irqf_oneshot.cocci: Improve the generated commit log
  coccinelle: api: add vma_pages.cocci
  scripts/coccinelle/misc/irqf_oneshot.cocci: Fix grammar
  scripts/coccinelle/misc/semicolon.cocci: Use imperative mood
  coccinelle: simple_open: Use imperative mood
  ...

.gitignore

@@ -36,6 +36,7 @@
 modules.builtin
 Module.symvers
 *.dwo
+*.su
 
 #
 # Top-level generic files
@@ -44,6 +45,7 @@ Module.symvers
 /TAGS
 /linux
 /vmlinux
+/vmlinux.32
 /vmlinux-gdb.py
 /vmlinuz
 /System.map
@@ -89,6 +91,9 @@ GRTAGS
 GSYMS
 GTAGS
 
+# id-utils files
+ID
+
 *.orig
 *~
 \#*#

Makefile

@@ -1425,6 +1425,7 @@ clean: $(clean-dirs)
 		\( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
 		-o -name '*.ko.*' \
 		-o -name '*.dwo'  \
+		-o -name '*.su'  \
 		-o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \
 		-o -name '*.symtypes' -o -name 'modules.order' \
 		-o -name modules.builtin -o -name '.tmp_*.o.*' \

scripts/coccinelle/api/platform_no_drv_owner.cocci

@@ -9,11 +9,14 @@ virtual org
 virtual report
 
 @match1@
+declarer name module_i2c_driver;
 declarer name module_platform_driver;
 declarer name module_platform_driver_probe;
 identifier __driver;
 @@
 (
+	module_i2c_driver(__driver);
+|
 	module_platform_driver(__driver);
 |
 	module_platform_driver_probe(__driver, ...);
@@ -28,6 +31,15 @@ identifier match1.__driver;
 		}
 	};
 
+@fix1_i2c depends on match1 && patch && !context && !org && !report@
+identifier match1.__driver;
+@@
+	static struct i2c_driver __driver = {
+		.driver = {
+-			.owner = THIS_MODULE,
+		}
+	};
+
 @match2@
 identifier __driver;
 @@
@@ -37,6 +49,8 @@ identifier __driver;
 	platform_driver_probe(&__driver, ...)
 |
 	platform_create_bundle(&__driver, ...)
+|
+	i2c_add_driver(&__driver)
 )
 
 @fix2 depends on match2 && patch && !context && !org && !report@
@@ -48,6 +62,15 @@ identifier match2.__driver;
 		}
 	};
 
+@fix2_i2c depends on match2 && patch && !context && !org && !report@
+identifier match2.__driver;
+@@
+	static struct i2c_driver __driver = {
+		.driver = {
+-			.owner = THIS_MODULE,
+		}
+	};
+
 // ----------------------------------------------------------------------------
 
 @fix1_context depends on match1 && !patch && (context || org || report)@
@@ -61,6 +84,17 @@ position j0;
 		}
 	};
 
+@fix1_i2c_context depends on match1 && !patch && (context || org || report)@
+identifier match1.__driver;
+position j0;
+@@
+
+	static struct i2c_driver __driver = {
+		.driver = {
+*			.owner@j0 = THIS_MODULE,
+		}
+	};
+
 @fix2_context depends on match2 && !patch && (context || org || report)@
 identifier match2.__driver;
 position j0;
@@ -72,6 +106,17 @@ position j0;
 		}
 	};
 
+@fix2_i2c_context depends on match2 && !patch && (context || org || report)@
+identifier match2.__driver;
+position j0;
+@@
+
+	static struct i2c_driver __driver = {
+		.driver = {
+*			.owner@j0 = THIS_MODULE,
+		}
+	};
+
 // ----------------------------------------------------------------------------
 
 @script:python fix1_org depends on org@
@@ -81,6 +126,13 @@ j0 << fix1_context.j0;
 msg = "No need to set .owner here. The core will do it."
 coccilib.org.print_todo(j0[0], msg)
 
+@script:python fix1_i2c_org depends on org@
+j0 << fix1_i2c_context.j0;
+@@
+
+msg = "No need to set .owner here. The core will do it."
+coccilib.org.print_todo(j0[0], msg)
+
 @script:python fix2_org depends on org@
 j0 << fix2_context.j0;
 @@
@@ -88,6 +140,13 @@ j0 << fix2_context.j0;
 msg = "No need to set .owner here. The core will do it."
 coccilib.org.print_todo(j0[0], msg)
 
+@script:python fix2_i2c_org depends on org@
+j0 << fix2_i2c_context.j0;
+@@
+
+msg = "No need to set .owner here. The core will do it."
+coccilib.org.print_todo(j0[0], msg)
+
 // ----------------------------------------------------------------------------
 
 @script:python fix1_report depends on report@
@@ -97,6 +156,13 @@ j0 << fix1_context.j0;
 msg = "No need to set .owner here. The core will do it."
 coccilib.report.print_report(j0[0], msg)
 
+@script:python fix1_i2c_report depends on report@
+j0 << fix1_i2c_context.j0;
+@@
+
+msg = "No need to set .owner here. The core will do it."
+coccilib.report.print_report(j0[0], msg)
+
 @script:python fix2_report depends on report@
 j0 << fix2_context.j0;
 @@
@@ -104,3 +170,10 @@ j0 << fix2_context.j0;
 msg = "No need to set .owner here. The core will do it."
 coccilib.report.print_report(j0[0], msg)
 
+@script:python fix2_i2c_report depends on report@
+j0 << fix2_i2c_context.j0;
+@@
+
+msg = "No need to set .owner here. The core will do it."
+coccilib.report.print_report(j0[0], msg)
+

scripts/coccinelle/api/pm_runtime.cocci

 /// Make sure pm_runtime_* calls does not use unnecessary IS_ERR_VALUE
-//
+///
 // Keywords: pm_runtime
 // Confidence: Medium
 // Copyright (C) 2013 Texas Instruments Incorporated - GPLv2.

scripts/coccinelle/api/simple_open.cocci

-/// This removes an open coded simple_open() function
-/// and replaces file operations references to the function
+/// Remove an open coded simple_open() function
+/// and replace file operations references to the function
 /// with simple_open() instead.
 ///
 // Confidence: High

scripts/coccinelle/api/vma_pages.cocci

+///
+/// Use vma_pages function on vma object instead of explicit computation.
+///
+//  Confidence: High
+//  Keywords: vma_pages vma
+//  Comment: Based on resource_size.cocci
+
+virtual context
+virtual patch
+virtual org
+virtual report
+
+//----------------------------------------------------------
+//  For context mode
+//----------------------------------------------------------
+
+@r_context depends on context && !patch && !org && !report@
+struct vm_area_struct *vma;
+@@
+
+* (vma->vm_end - vma->vm_start) >> PAGE_SHIFT
+
+//----------------------------------------------------------
+//  For patch mode
+//----------------------------------------------------------
+
+@r_patch depends on !context && patch && !org && !report@
+struct vm_area_struct *vma;
+@@
+
+- ((vma->vm_end - vma->vm_start) >> PAGE_SHIFT)
++ vma_pages(vma)
+
+//----------------------------------------------------------
+//  For org mode
+//----------------------------------------------------------
+
+@r_org depends on !context && !patch && (org || report)@
+struct vm_area_struct *vma;
+position p;
+@@
+
+  (vma->vm_end@p - vma->vm_start) >> PAGE_SHIFT
+
+@script:python depends on report@
+p << r_org.p;
+x << r_org.vma;
+@@
+
+msg="WARNING: Consider using vma_pages helper on %s" % (x)
+coccilib.report.print_report(p[0], msg)
+
+@script:python depends on org@
+p << r_org.p;
+x << r_org.vma;
+@@
+
+msg="WARNING: Consider using vma_pages helper on %s" % (x)
+msg_safe=msg.replace("[","@(").replace("]",")")
+coccilib.org.print_todo(p[0], msg_safe)

scripts/coccinelle/misc/ifaddr.cocci

-/// the address of a variable or field is non-zero is likely always to bo
-/// non-zero
+/// The address of a variable or field is likely always to be non-zero.
 ///
 // Confidence: High
 // Copyright: (C) 2012 Julia Lawall, INRIA/LIP6.  GPLv2.

scripts/coccinelle/misc/irqf_oneshot.cocci

-/// Make sure threaded IRQs without a primary handler are always request with
-/// IRQF_ONESHOT
+/// Since commit 1c6c69525b40 ("genirq: Reject bogus threaded irq requests")
+/// threaded IRQs without a primary handler need to be requested with
+/// IRQF_ONESHOT, otherwise the request will fail.
+///
+/// So pass the IRQF_ONESHOT flag in this case.
 ///
 //
 // Confidence: Good

scripts/coccinelle/misc/returnvar.cocci

 ///
-/// Removes unneeded variable used to store return value.
+/// Remove unneeded variable used to store return value.
 ///
 // Confidence: Moderate
 // Copyright: (C) 2012 Peter Senna Tschudin, INRIA/LIP6.  GPLv2.

scripts/coccinelle/misc/semicolon.cocci

 ///
-/// Removes unneeded semicolon.
+/// Remove unneeded semicolon.
 ///
 // Confidence: Moderate
 // Copyright: (C) 2012 Peter Senna Tschudin, INRIA/LIP6.  GPLv2.

scripts/coccinelle/misc/simple_return.cocci

 /// Simplify a trivial if-return sequence.  Possibly combine with a
 /// preceding function call.
-//
+///
 // Confidence: High
 // Copyright: (C) 2014 Julia Lawall, INRIA/LIP6.  GPLv2.
 // Copyright: (C) 2014 Gilles Muller, INRIA/LiP6.  GPLv2.

scripts/package/Makefile

@@ -21,37 +21,38 @@
 # Note that the rpm-pkg target cannot be used with KBUILD_OUTPUT,
 # but the binrpm-pkg target can; for some reason O= gets ignored.
 
-# Do we have rpmbuild, otherwise fall back to the older rpm
-RPM := $(shell if [ -x "/usr/bin/rpmbuild" ]; then echo rpmbuild; \
-	           else echo rpm; fi)
-
 # Remove hyphens since they have special meaning in RPM filenames
 KERNELPATH := kernel-$(subst -,_,$(KERNELRELEASE))
+KDEB_SOURCENAME ?= linux-$(KERNELRELEASE)
+export KDEB_SOURCENAME
 # Include only those top-level files that are needed by make, plus the GPL copy
-TAR_CONTENT := $(KBUILD_ALLDIRS) kernel.spec .config .scmversion Makefile \
+TAR_CONTENT := $(KBUILD_ALLDIRS) .config .scmversion Makefile \
                Kbuild Kconfig COPYING $(wildcard localversion*)
-TAR_CONTENT := $(addprefix $(KERNELPATH)/,$(TAR_CONTENT))
 MKSPEC     := $(srctree)/scripts/package/mkspec
 
+quiet_cmd_src_tar = TAR     $(2).tar.gz
+      cmd_src_tar = \
+if test "$(objtree)" != "$(srctree)"; then \
+	echo "Building source tarball is not possible outside the"; \
+	echo "kernel source tree. Don't set KBUILD_OUTPUT, or use the"; \
+	echo "binrpm-pkg or bindeb-pkg target instead."; \
+	false; \
+fi ; \
+$(srctree)/scripts/setlocalversion --save-scmversion; \
+ln -sf $(srctree) $(2); \
+tar -cz $(RCS_TAR_IGNORE) -f $(2).tar.gz \
+	$(addprefix $(2)/,$(TAR_CONTENT) $(3)); \
+rm -f $(2) $(objtree)/.scmversion
+
 # rpm-pkg
 # ---------------------------------------------------------------------------
 rpm-pkg rpm: FORCE
-	@if test "$(objtree)" != "$(srctree)"; then \
-		echo "Building source + binary RPM is not possible outside the"; \
-		echo "kernel source tree. Don't set KBUILD_OUTPUT, or use the"; \
-		echo "binrpm-pkg target instead."; \
-		false; \
-	fi
 	$(MAKE) clean
-	ln -sf $(srctree) $(KERNELPATH)
 	$(CONFIG_SHELL) $(MKSPEC) >$(objtree)/kernel.spec
-	$(CONFIG_SHELL) $(srctree)/scripts/setlocalversion --save-scmversion
-	tar -cz $(RCS_TAR_IGNORE) -f $(KERNELPATH).tar.gz $(TAR_CONTENT)
-	rm $(KERNELPATH)
-	rm -f $(objtree)/.scmversion
+	$(call cmd,src_tar,$(KERNELPATH),kernel.spec)
 	$(CONFIG_SHELL) $(srctree)/scripts/mkversion > $(objtree)/.tmp_version
 	mv -f $(objtree)/.tmp_version $(objtree)/.version
-	$(RPM) $(RPMOPTS) --target $(UTS_MACHINE) -ta $(KERNELPATH).tar.gz
+	rpmbuild --target $(UTS_MACHINE) -ta $(KERNELPATH).tar.gz
 	rm $(KERNELPATH).tar.gz kernel.spec
 
 # binrpm-pkg
@@ -62,7 +63,7 @@ binrpm-pkg: FORCE
 	$(CONFIG_SHELL) $(srctree)/scripts/mkversion > $(objtree)/.tmp_version
 	mv -f $(objtree)/.tmp_version $(objtree)/.version
 
-	$(RPM) $(RPMOPTS) --define "_builddir $(objtree)" --target \
+	rpmbuild --define "_builddir $(objtree)" --target \
 		$(UTS_MACHINE) -bb $(objtree)/binkernel.spec
 	rm binkernel.spec
 
@@ -84,11 +85,17 @@ quiet_cmd_builddeb = BUILDDEB
 	} && \
 	\
 	$$KBUILD_PKG_ROOTCMD $(CONFIG_SHELL) \
-		$(srctree)/scripts/package/builddeb
+		$(srctree)/scripts/package/builddeb $@
 
 deb-pkg: FORCE
+	$(MAKE) clean
+	$(call cmd,src_tar,$(KDEB_SOURCENAME))
+	$(MAKE) KBUILD_SRC=
+	+$(call cmd,builddeb)
+
+bindeb-pkg: FORCE
 	$(MAKE) KBUILD_SRC=
-	$(call cmd,builddeb)
+	+$(call cmd,builddeb)
 
 clean-dirs += $(objtree)/debian/
 
@@ -133,8 +140,9 @@ perf-%pkg: FORCE
 # ---------------------------------------------------------------------------
 help: FORCE
 	@echo '  rpm-pkg             - Build both source and binary RPM kernel packages'
-	@echo '  binrpm-pkg          - Build only the binary kernel package'
-	@echo '  deb-pkg             - Build the kernel as a deb package'
+	@echo '  binrpm-pkg          - Build only the binary kernel RPM package'
+	@echo '  deb-pkg             - Build both source and binary deb kernel packages'
+	@echo '  bindeb-pkg          - Build only the binary kernel deb package'
 	@echo '  tar-pkg             - Build the kernel as an uncompressed tarball'
 	@echo '  targz-pkg           - Build the kernel as a gzip compressed tarball'
 	@echo '  tarbz2-pkg          - Build the kernel as a bzip2 compressed tarball'

scripts/package/builddeb

@@ -15,6 +15,8 @@ set -e
 create_package() {
 	local pname="$1" pdir="$2"
 
+	mkdir -m 755 -p "$pdir/DEBIAN"
+	mkdir -p "$pdir/usr/share/doc/$pname"
 	cp debian/copyright "$pdir/usr/share/doc/$pname/"
 	cp debian/changelog "$pdir/usr/share/doc/$pname/changelog.Debian"
 	gzip -9 "$pdir/usr/share/doc/$pname/changelog.Debian"
@@ -25,8 +27,13 @@ create_package() {
 	chown -R root:root "$pdir"
 	chmod -R go-w "$pdir"
 
+	# Create the package
+	dpkg-gencontrol $forcearch -Vkernel:debarch="${debarch}" -p$pname -P"$pdir"
+	dpkg --build "$pdir" ..
+}
+
+set_debarch() {
 	# Attempt to find the correct Debian architecture
-	local forcearch="" debarch=""
 	case "$UTS_MACHINE" in
 	i386|ia64|alpha)
 		debarch="$UTS_MACHINE" ;;
@@ -47,6 +54,7 @@ create_package() {
 	arm*)
 		debarch=arm$(grep -q CONFIG_AEABI=y $KCONFIG_CONFIG && echo el || true) ;;
 	*)
+		debarch=$(dpkg --print-architecture)
 		echo "" >&2
 		echo "** ** **  WARNING  ** ** **" >&2
 		echo "" >&2
@@ -59,13 +67,8 @@ create_package() {
 	if [ -n "$KBUILD_DEBARCH" ] ; then
 		debarch="$KBUILD_DEBARCH"
 	fi
-	if [ -n "$debarch" ] ; then
-		forcearch="-DArchitecture=$debarch"
-	fi
+	forcearch="-DArchitecture=$debarch"
 
-	# Create the package
-	dpkg-gencontrol $forcearch -Vkernel:debarch="${debarch:-$(dpkg --print-architecture)}" -p$pname -P"$pdir"
-	dpkg --build "$pdir" ..
 }
 
 # Some variables and settings used throughout the script
@@ -76,6 +79,7 @@ if [ -n "$KDEB_PKGVERSION" ]; then
 else
 	packageversion=$version-$revision
 fi
+sourcename=$KDEB_SOURCENAME
 tmpdir="$objtree/debian/tmp"
 fwdir="$objtree/debian/fwtmp"
 kernel_headers_dir="$objtree/debian/hdrtmp"
@@ -86,6 +90,9 @@ fwpackagename=linux-firmware-image-$version
 kernel_headers_packagename=linux-headers-$version
 libc_headers_packagename=linux-libc-dev
 dbg_packagename=$packagename-dbg
+debarch=
+forcearch=
+set_debarch
 
 if [ "$ARCH" = "um" ] ; then
 	packagename=user-mode-linux-$version
@@ -110,24 +117,13 @@ BUILD_DEBUG="$(grep -s '^CONFIG_DEBUG_INFO=y' $KCONFIG_CONFIG || true)"
 # Setup the directory structure
 rm -rf "$tmpdir" "$fwdir" "$kernel_headers_dir" "$libc_headers_dir" "$dbg_dir"
 mkdir -m 755 -p "$tmpdir/DEBIAN"
-mkdir -p  "$tmpdir/lib" "$tmpdir/boot" "$tmpdir/usr/share/doc/$packagename"
-mkdir -m 755 -p "$fwdir/DEBIAN"
-mkdir -p "$fwdir/lib/firmware/$version/" "$fwdir/usr/share/doc/$fwpackagename"
-mkdir -m 755 -p "$libc_headers_dir/DEBIAN"
-mkdir -p "$libc_headers_dir/usr/share/doc/$libc_headers_packagename"
-mkdir -m 755 -p "$kernel_headers_dir/DEBIAN"
-mkdir -p "$kernel_headers_dir/usr/share/doc/$kernel_headers_packagename"
+mkdir -p "$tmpdir/lib" "$tmpdir/boot"
+mkdir -p "$fwdir/lib/firmware/$version/"
 mkdir -p "$kernel_headers_dir/lib/modules/$version/"
-if [ "$ARCH" = "um" ] ; then
-	mkdir -p "$tmpdir/usr/lib/uml/modules/$version" "$tmpdir/usr/bin"
-fi
-if [ -n "$BUILD_DEBUG" ] ; then
-	mkdir -p "$dbg_dir/usr/share/doc/$dbg_packagename"
-	mkdir -m 755 -p "$dbg_dir/DEBIAN"
-fi
 
 # Build and install the kernel
 if [ "$ARCH" = "um" ] ; then
+	mkdir -p "$tmpdir/usr/lib/uml/modules/$version" "$tmpdir/usr/bin" "$tmpdir/usr/share/doc/$packagename"
 	$MAKE linux
 	cp System.map "$tmpdir/usr/lib/uml/modules/$version/System.map"
 	cp $KCONFIG_CONFIG "$tmpdir/usr/share/doc/$packagename/config"
@@ -143,6 +139,13 @@ else
 	cp arch/$ARCH/boot/$KBUILD_IMAGE "$tmpdir/$installed_image_path"
 fi
 
+if grep -q "^CONFIG_OF=y" $KCONFIG_CONFIG ; then
+	# Only some architectures with OF support have this target
+	if grep -q dtbs_install "${srctree}/arch/$SRCARCH/Makefile"; then
+		$MAKE KBUILD_SRC= INSTALL_DTBS_PATH="$tmpdir/usr/lib/$packagename" dtbs_install
+	fi
+fi
+
 if grep -q '^CONFIG_MODULES=y' $KCONFIG_CONFIG ; then
 	INSTALL_MOD_PATH="$tmpdir" $MAKE KBUILD_SRC= modules_install
 	rm -f "$tmpdir/lib/modules/$version/build"
@@ -162,6 +165,12 @@ if grep -q '^CONFIG_MODULES=y' $KCONFIG_CONFIG ; then
 			# then add a link to those
 			$OBJCOPY --add-gnu-debuglink=$dbg_dir/usr/lib/debug/$module $tmpdir/$module
 		done
+
+		# resign stripped modules
+		MODULE_SIG_ALL="$(grep -s '^CONFIG_MODULE_SIG_ALL=y' $KCONFIG_CONFIG || true)"
+		if [ -n "$MODULE_SIG_ALL" ]; then
+			INSTALL_MOD_PATH="$tmpdir" $MAKE KBUILD_SRC= modules_sign
+		fi
 	fi
 fi
 
@@ -206,7 +215,7 @@ if [ -n "$DEBEMAIL" ]; then
 elif [ -n "$EMAIL" ]; then
        email=$EMAIL
 else
-       email=$(id -nu)@$(hostname -f)
+       email=$(id -nu)@$(hostname -f 2>/dev/null || hostname)
 fi
 if [ -n "$DEBFULLNAME" ]; then
        name=$DEBFULLNAME
@@ -230,7 +239,7 @@ fi
 
 # Generate a simple changelog template
 cat <<EOF > debian/changelog
-linux-upstream ($packageversion) $distribution; urgency=low
+$sourcename ($packageversion) $distribution; urgency=low
 
   * Custom built Linux kernel.
 
@@ -257,12 +266,16 @@ On Debian GNU/Linux systems, the complete text of the GNU General Public
 License version 2 can be found in \`/usr/share/common-licenses/GPL-2'.
 EOF
 
+
+build_depends="bc, kmod, cpio "
+
 # Generate a control file
 cat <<EOF > debian/control
-Source: linux-upstream
+Source: $sourcename
 Section: kernel
 Priority: optional
 Maintainer: $maintainer
+Build-Depends: $build_depends
 Standards-Version: 3.8.4
 Homepage: http://www.kernel.org/
 EOF
@@ -383,4 +396,33 @@ EOF
 	create_package "$dbg_packagename" "$dbg_dir"
 fi
 
+if [ "x$1" = "xdeb-pkg" ]
+then
+    cat <<EOF > debian/rules
+#!/usr/bin/make -f
+
+build:
+	\$(MAKE)
+
+binary-arch:
+	\$(MAKE) KDEB_SOURCENAME=${sourcename} KDEB_PKGVERSION=${packageversion} bindeb-pkg
+
+clean:
+	rm -rf debian/*tmp
+	mv debian/ debian.backup # debian/ might be cleaned away
+	\$(MAKE) clean
+	mv debian.backup debian
+
+binary: binary-arch
+EOF
+	mv ${sourcename}.tar.gz ../${sourcename}_${version}.orig.tar.gz
+	tar caf ../${sourcename}_${packageversion}.debian.tar.gz debian/{copyright,rules,changelog,control}
+	dpkg-source -cdebian/control -ldebian/changelog --format="3.0 (custom)" --target-format="3.0 (quilt)" \
+		-b / ../${sourcename}_${version}.orig.tar.gz  ../${sourcename}_${packageversion}.debian.tar.gz
+	mv ${sourcename}_${packageversion}*dsc ..
+	dpkg-genchanges > ../${sourcename}_${packageversion}_${debarch}.changes
+else
+	dpkg-genchanges -b > ../${sourcename}_${packageversion}_${debarch}.changes
+fi
+
 exit 0

scripts/package/mkspec

@@ -111,10 +111,8 @@ echo 'cp System.map $RPM_BUILD_ROOT'"/boot/System.map-$KERNELRELEASE"
 echo 'cp .config $RPM_BUILD_ROOT'"/boot/config-$KERNELRELEASE"
 
 echo "%ifnarch ppc64"
-echo 'cp vmlinux vmlinux.orig'
-echo 'bzip2 -9 vmlinux'
+echo 'bzip2 -9 --keep vmlinux'
 echo 'mv vmlinux.bz2 $RPM_BUILD_ROOT'"/boot/vmlinux-$KERNELRELEASE.bz2"
-echo 'mv vmlinux.orig vmlinux'
 echo "%endif"
 
 if ! $PREBUILT; then
@@ -142,7 +140,6 @@ echo "fi"
 echo ""
 echo "%files"
 echo '%defattr (-, root, root)'
-echo "%dir /lib/modules"
 echo "/lib/modules/$KERNELRELEASE"
 echo "%exclude /lib/modules/$KERNELRELEASE/build"
 echo "%exclude /lib/modules/$KERNELRELEASE/source"

scripts/stackdelta

+#!/usr/bin/perl
+
+# Read two files produced by the stackusage script, and show the
+# delta between them.
+#
+# Currently, only shows changes for functions listed in both files. We
+# could add an option to show also functions which have vanished or
+# appeared (which would often be due to gcc making other inlining
+# decisions).
+#
+# Another possible option would be a minimum absolute value for the
+# delta.
+#
+# A third possibility is for sorting by delta, but that can be
+# achieved by piping to sort -k5,5g.
+
+sub read_stack_usage_file {
+    my %su;
+    my $f = shift;
+    open(my $fh, '<', $f)
+	or die "cannot open $f: $!";
+    while (<$fh>) {
+	chomp;
+	my ($file, $func, $size, $type) = split;
+	# Old versions of gcc (at least 4.7) have an annoying quirk in
+	# that a (static) function whose name has been changed into
+	# for example ext4_find_unwritten_pgoff.isra.11 will show up
+	# in the .su file with a name of just "11". Since such a
+	# numeric suffix is likely to change across different
+	# commits/compilers/.configs or whatever else we're trying to
+	# tweak, we can't really track those functions, so we just
+	# silently skip them.
+	#
+	# Newer gcc (at least 5.0) report the full name, so again,
+	# since the suffix is likely to change, we strip it.
+	next if $func =~ m/^[0-9]+$/;
+	$func =~ s/\..*$//;
+	# Line numbers are likely to change; strip those.
+	$file =~ s/:[0-9]+$//;
+	$su{"${file}\t${func}"} = {size => $size, type => $type};
+    }
+    close($fh);
+    return \%su;
+}
+
+@ARGV == 2
+    or die "usage: $0 <old> <new>";
+
+my $old = read_stack_usage_file($ARGV[0]);
+my $new = read_stack_usage_file($ARGV[1]);
+my @common = sort grep {exists $new->{$_}} keys %$old;
+for (@common) {
+    my $x = $old->{$_}{size};
+    my $y = $new->{$_}{size};
+    my $delta = $y - $x;
+    if ($delta) {
+	printf "%s\t%d\t%d\t%+d\n", $_, $x, $y, $delta;
+    }
+}

scripts/stackusage

+#!/bin/sh
+
+outfile=""
+now=`date +%s`
+
+while [ $# -gt 0 ]
+do
+    case "$1" in
+        -o)
+	    outfile="$2"
+	    shift 2;;
+	-h)
+	    echo "usage: $0 [-o outfile] <make options/args>"
+	    exit 0;;
+	*)  break;;
+    esac
+done
+
+if [ -z "$outfile" ]
+then
+    outfile=`mktemp --tmpdir stackusage.$$.XXXX`
+fi
+
+KCFLAGS="${KCFLAGS} -fstack-usage" make "$@"
+
+# Prepend directory name to file names, remove column information,
+# make file:line/function/size/type properly tab-separated.
+find . -name '*.su' -newermt "@${now}" -print |                     \
+    xargs perl -MFile::Basename -pe                                 \
+        '$d = dirname($ARGV); s#([^:]+:[0-9]+):[0-9]+:#$d/$1\t#;' | \
+    sort -k3,3nr > "${outfile}"
+
+echo "$0: output written to ${outfile}"

scripts/tags.sh

@@ -170,7 +170,9 @@ exuberant()
 	--regex-c='/^SYSCALL_DEFINE[[:digit:]]?\(([^,)]*).*/sys_\1/' \
 	--regex-c='/^COMPAT_SYSCALL_DEFINE[[:digit:]]?\(([^,)]*).*/compat_sys_\1/' \
 	--regex-c++='/^TRACE_EVENT\(([^,)]*).*/trace_\1/'		\
+	--regex-c++='/^TRACE_EVENT\(([^,)]*).*/trace_\1_rcuidle/'	\
 	--regex-c++='/^DEFINE_EVENT\([^,)]*, *([^,)]*).*/trace_\1/'	\
+	--regex-c++='/^DEFINE_EVENT\([^,)]*, *([^,)]*).*/trace_\1_rcuidle/' \
 	--regex-c++='/PAGEFLAG\(([^,)]*).*/Page\1/'			\
 	--regex-c++='/PAGEFLAG\(([^,)]*).*/SetPage\1/'			\
 	--regex-c++='/PAGEFLAG\(([^,)]*).*/ClearPage\1/'		\
@@ -233,7 +235,9 @@ emacs()
 	--regex='/^SYSCALL_DEFINE[0-9]?(\([^,)]*\).*/sys_\1/'   \
 	--regex='/^COMPAT_SYSCALL_DEFINE[0-9]?(\([^,)]*\).*/compat_sys_\1/' \
 	--regex='/^TRACE_EVENT(\([^,)]*\).*/trace_\1/'		\
+	--regex='/^TRACE_EVENT(\([^,)]*\).*/trace_\1_rcuidle/'	\
 	--regex='/^DEFINE_EVENT([^,)]*, *\([^,)]*\).*/trace_\1/' \
+	--regex='/^DEFINE_EVENT([^,)]*, *\([^,)]*\).*/trace_\1_rcuidle/' \
 	--regex='/PAGEFLAG(\([^,)]*\).*/Page\1/'			\
 	--regex='/PAGEFLAG(\([^,)]*\).*/SetPage\1/'		\
 	--regex='/PAGEFLAG(\([^,)]*\).*/ClearPage\1/'		\