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

Pull misc kbuild changes from Michal Marek:
 "The non-critical part of kbuild is small this time:
   - Three fixes for make deb-pkg
   - A new coccinelle check

  One of the deb-pkg fixes is a leftover from the last merge window,
  hence the merge commit"

* 'misc' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
  deb-pkg: Fix building for MIPS big-endian or ARM OABI
  deb-pkg: Fix cross-building linux-headers package
  scripts: Coccinelle script for pm_runtime_* return checks with IS_ERR_VALUE
  deb-pkg: Inhibit initramfs builders if CONFIG_BLK_DEV_INITRD is not set

2 files changed, 126 insertions, 8 deletions

diff --git a/scripts/coccinelle/api/pm_runtime.cocci b/scripts/coccinelle/api/pm_runtime.cocci
new file mode 100644
index 000000000000..f01789e967ec
--- /dev/null
+++ b/scripts/coccinelle/api/pm_runtime.cocci
@@ -0,0 +1,109 @@
+/// Make sure pm_runtime_* calls does not use unnecessary IS_ERR_VALUE
+//
+// Keywords: pm_runtime
+// Confidence: Medium
+// Copyright (C) 2013 Texas Instruments Incorporated - GPLv2.
+// URL: http://coccinelle.lip6.fr/
+// Options: --include-headers
+
+virtual patch
+virtual context
+virtual org
+virtual report
+
+//----------------------------------------------------------
+//  Detection
+//----------------------------------------------------------
+
+@runtime_bad_err_handle exists@
+expression ret;
+@@
+(
+ret = \(pm_runtime_idle\|
+        pm_runtime_suspend\|
+        pm_runtime_autosuspend\|
+        pm_runtime_resume\|
+        pm_request_idle\|
+        pm_request_resume\|
+        pm_request_autosuspend\|
+        pm_runtime_get\|
+        pm_runtime_get_sync\|
+        pm_runtime_put\|
+        pm_runtime_put_autosuspend\|
+        pm_runtime_put_sync\|
+        pm_runtime_put_sync_suspend\|
+        pm_runtime_put_sync_autosuspend\|
+        pm_runtime_set_active\|
+        pm_schedule_suspend\|
+        pm_runtime_barrier\|
+        pm_generic_runtime_suspend\|
+        pm_generic_runtime_resume\)(...);
+...
+IS_ERR_VALUE(ret)
+...
+)
+
+//----------------------------------------------------------
+//  For context mode
+//----------------------------------------------------------
+
+@depends on runtime_bad_err_handle && context@
+identifier pm_runtime_api;
+expression ret;
+@@
+(
+ret = pm_runtime_api(...);
+...
+* IS_ERR_VALUE(ret)
+...
+)
+
+//----------------------------------------------------------
+//  For patch mode
+//----------------------------------------------------------
+
+@depends on runtime_bad_err_handle && patch@
+identifier pm_runtime_api;
+expression ret;
+@@
+(
+ret = pm_runtime_api(...);
+...
+- IS_ERR_VALUE(ret)
++ ret < 0
+...
+)
+
+//----------------------------------------------------------
+//  For org and report mode
+//----------------------------------------------------------
+
+@r depends on runtime_bad_err_handle exists@
+position p1, p2;
+identifier pm_runtime_api;
+expression ret;
+@@
+(
+ret = pm_runtime_api@p1(...);
+...
+IS_ERR_VALUE@p2(ret)
+...
+)
+
+@script:python depends on org@
+p1 << r.p1;
+p2 << r.p2;
+pm_runtime_api << r.pm_runtime_api;
+@@
+
+cocci.print_main(pm_runtime_api,p1)
+cocci.print_secs("IS_ERR_VALUE",p2)
+
+@script:python depends on report@
+p1 << r.p1;
+p2 << r.p2;
+pm_runtime_api << r.pm_runtime_api;
+@@
+
+msg = "%s returns < 0 as error. Unecessary IS_ERR_VALUE at line %s" % (pm_runtime_api, p2[0].line)
+coccilib.report.print_report(p1[0],msg)
diff --git a/scripts/package/builddeb b/scripts/package/builddeb
index 90e521fde35f..f46e4dd0558d 100644
--- a/scripts/package/builddeb
+++ b/scripts/package/builddeb
@@ -41,9 +41,9 @@ create_package() {
         parisc*)
                 debarch=hppa ;;
         mips*)
-                debarch=mips$(grep -q CPU_LITTLE_ENDIAN=y $KCONFIG_CONFIG && echo el) ;;
+                debarch=mips$(grep -q CPU_LITTLE_ENDIAN=y $KCONFIG_CONFIG && echo el || true) ;;
         arm*)
-                debarch=arm$(grep -q CONFIG_AEABI=y $KCONFIG_CONFIG && echo el) ;;
+                debarch=arm$(grep -q CONFIG_AEABI=y $KCONFIG_CONFIG && echo el || true) ;;
         *)
                 echo "" >&2
                 echo "** ** **  WARNING  ** ** **" >&2
@@ -62,7 +62,7 @@ create_package() {
         fi
 
         # Create the package
-        dpkg-gencontrol -isp $forcearch -p$pname -P"$pdir"
+        dpkg-gencontrol -isp $forcearch -Vkernel:debarch="${debarch:-$(dpkg --print-architecture)}" -p$pname -P"$pdir"
         dpkg --build "$pdir" ..
 }
 
@@ -172,8 +172,15 @@ fi
 
 # Install the maintainer scripts
 # Note: hook scripts under /etc/kernel are also executed by official Debian
-# kernel packages, as well as kernel packages built using make-kpkg
+# kernel packages, as well as kernel packages built using make-kpkg.
+# make-kpkg sets $INITRD to indicate whether an initramfs is wanted, and
+# so do we; recent versions of dracut and initramfs-tools will obey this.
 debhookdir=${KDEB_HOOKDIR:-/etc/kernel}
+if grep -q '^CONFIG_BLK_DEV_INITRD=y' $KCONFIG_CONFIG; then
+        want_initrd=Yes
+else
+        want_initrd=No
+fi
 for script in postinst postrm preinst prerm ; do
         mkdir -p "$tmpdir$debhookdir/$script.d"
         cat <<EOF > "$tmpdir/DEBIAN/$script"
@@ -184,6 +191,9 @@ set -e
 # Pass maintainer script parameters to hook scripts
 export DEB_MAINT_PARAMS="\$*"
 
+# Tell initramfs builder whether it's wanted
+export INITRD=$want_initrd
+
 test -d $debhookdir/$script.d && run-parts --arg="$version" --arg="/$installed_image_path" $debhookdir/$script.d
 exit 0
 EOF
@@ -288,15 +298,14 @@ mkdir -p "$destdir"
 (cd $objtree; cp $KCONFIG_CONFIG $destdir/.config) # copy .config manually to be where it's expected to be
 ln -sf "/usr/src/linux-headers-$version" "$kernel_headers_dir/lib/modules/$version/build"
 rm -f "$objtree/debian/hdrsrcfiles" "$objtree/debian/hdrobjfiles"
-arch=$(dpkg --print-architecture)
 
 cat <<EOF >> debian/control
 
 Package: $kernel_headers_packagename
 Provides: linux-headers, linux-headers-2.6
-Architecture: $arch
-Description: Linux kernel headers for $KERNELRELEASE on $arch
- This package provides kernel header files for $KERNELRELEASE on $arch
+Architecture: any
+Description: Linux kernel headers for $KERNELRELEASE on \${kernel:debarch}
+ This package provides kernel header files for $KERNELRELEASE on \${kernel:debarch}
  .
  This is useful for people who need to build external modules
 EOF