Create a kernel-modules-extra subpackage

This creates a modules-extra subpackage which places a number of less
frequently used modules into the extra directory under
/lib/modules/`uname -r`/.  This reduces the size of the default kernel
package while still allowing those modules to be built and installed if
needed.  We also limit the security exposure by keeping these modules out
of the default install.

1 files changed, 81 insertions, 2 deletions

diff --git a/kernel.spec b/kernel.spec
index 445da3db8..5245c3250 100644
--- a/kernel.spec
+++ b/kernel.spec
@@ -54,7 +54,7 @@ Summary: The Linux kernel
 # For non-released -rc kernels, this will be appended after the rcX and
 # gitX tags, so a 3 here would become part of release "0.rcX.gitX.3"
 #
-%global baserelease 1
+%global baserelease 2
 %global fedora_build %{baserelease}
 
 # base_sublevel is the kernel version we're starting with and patching
@@ -546,6 +546,7 @@ Source0: ftp://ftp.kernel.org/pub/linux/kernel/v3.0/linux-%{kversion}.tar.bz2
 Source1: compat-wireless-%{cwversion}.tar.bz2
 
 Source15: merge.pl
+Source16: mod-extra.list
 
 Source19: Makefile.release
 Source20: Makefile.config
@@ -896,6 +897,24 @@ against the %{?2:%{2} }kernel package.\
 %{nil}
 
 #
+# This macro creates a kernel-<subpackage>-modules-extra package.
+#	%%kernel_modules-extra_package <subpackage> <pretty-name>
+#
+%define kernel_modules-extra_package() \
+%package %{?1:%{1}-}modules-extra\
+Summary: Extra kernel modules to match the %{?2:%{2} }kernel\
+Group: System Environment/Kernel\
+Provides: kernel%{?1:-%{1}}-modules-extra-%{_target_cpu} = %{version}-%{release}\
+Provides: kernel-modules-extra-%{_target_cpu} = %{version}-%{release}%{?1:.%{1}}\
+Provides: kernel-modules-extra = %{version}-%{release}%{?1:.%{1}}\
+Provides: kernel-modules-extra-uname-r = %{KVERREL}%{?1:.%{1}}\
+Requires: kernel%{?1:-%{1}}-%{_target_cpu} = %{version}-%{release}%{?1:.%{1}}\
+AutoReqProv: no\
+%description -n kernel%{?variant}%{?1:-%{1}}-modules-extra\
+This package provides less commonly used kernel modules for the %{?2:%{2} }kernel package.\
+%{nil}
+
+#
 # This macro creates a kernel-<subpackage> and its -devel and -debuginfo too.
 #	%%define variant_summary The Linux kernel compiled for <configuration>
 #	%%kernel_variant_package [-n <pretty-name>] <subpackage>
@@ -906,12 +925,14 @@ Summary: %{variant_summary}\
 Group: System Environment/Kernel\
 %kernel_reqprovconf\
 %{expand:%%kernel_devel_package %1 %{!?-n:%1}%{?-n:%{-n*}}}\
+%{expand:%%kernel_modules-extra_package %1 %{!?-n:%1}%{?-n:%{-n*}}}\
 %{expand:%%kernel_debuginfo_package %1}\
 %{nil}
 
 
 # First the auxiliary packages of the main kernel package.
 %kernel_devel_package
+%kernel_modules-extra_package
 %kernel_debuginfo_package
 
 
@@ -1635,6 +1656,50 @@ BuildKernel() {
 
     rm -f modinfo modnames
 
+    pushd $RPM_BUILD_ROOT/lib/modules/$KernelVer/
+    rm -rf modnames
+    find . -name "*.ko" -type f > modnames
+    # Look through all of the modules, and throw any that have a dependency in
+    # our list into the list as well.
+    rm -rf dep.list dep2.list
+    cp %{SOURCE16} .
+    for dep in `cat modnames`
+    do
+      depends=`modinfo $dep | grep depends| cut -f2 -d":" | sed -e 's/^[ \t]*//'`
+      [ -z "$depends" ] && continue;
+      for mod in `echo $depends | sed -e 's/,/ /g'`
+      do
+        match=`grep "^$mod.ko" mod-extra.list` ||:
+        if [ -z "$match" ]
+        then
+          continue
+        else
+          echo $dep >> dep.list
+        fi
+      done
+    done
+
+    for mod in `cat mod-extra.list`
+    do
+      # get the path for the module
+      modpath=`grep /$mod modnames`
+      [ -z "$modpath" ]  && continue;
+      echo $modpath >> dep.list
+    done
+
+    sort -u dep.list > dep2.list
+
+    # now move the modules into the extra/ directory
+    for mod in `cat dep2.list`
+    do
+      newpath=`dirname $mod | sed -e 's/kernel\//extra\//'`
+      mkdir -p $newpath
+      mv $mod $newpath
+    done
+
+    rm modnames mod-extra.list dep.list dep2.list
+    popd
+
     # remove files that will be auto generated by depmod at rpm -i time
     for i in alias alias.bin builtin.bin ccwmap dep dep.bin ieee1394map inputmap isapnpmap ofmap pcimap seriomap symbols symbols.bin usbmap
     do
@@ -1892,6 +1957,14 @@ then\
 fi\
 %{nil}
 
+#
+# This macro defines a %%post script for a kernel*-modules-extra package.
+#	%%kernel_modules-extra_post [<subpackage>]
+#
+%define kernel_modules_extra_post() \
+%{expand:%%post %{?1:%{1}-}modules-extra}\
+/sbin/depmod -a %{KVERREL}%{?1:.%{1}}\
+%{nil}
 
 # This macro defines a %%posttrans script for a kernel package.
 #	%%kernel_variant_posttrans [<subpackage>]
@@ -1910,6 +1983,7 @@ fi\
 #
 %define kernel_variant_post(v:r:) \
 %{expand:%%kernel_devel_post %{?-v*}}\
+%{expand:%%kernel_modules_extra_post %{?-v*}}\
 %{expand:%%kernel_variant_posttrans %{?-v*}}\
 %{expand:%%post %{?-v*}}\
 %{-r:\
@@ -2051,7 +2125,6 @@ fi
 /lib/modules/%{KVERREL}%{?2:.%{2}}/kernel\
 /lib/modules/%{KVERREL}%{?2:.%{2}}/build\
 /lib/modules/%{KVERREL}%{?2:.%{2}}/source\
-/lib/modules/%{KVERREL}%{?2:.%{2}}/extra\
 /lib/modules/%{KVERREL}%{?2:.%{2}}/updates\
 %if %{with_backports}\
 /lib/modules/%{KVERREL}%{?2:.%{2}}/backports\
@@ -2065,6 +2138,9 @@ fi
 %{expand:%%files %{?2:%{2}-}devel}\
 %defattr(-,root,root)\
 /usr/src/kernels/%{KVERREL}%{?2:.%{2}}\
+%{expand:%%files %{?2:%{2}-}modules-extra}\
+%defattr(-,root,root)\
+/lib/modules/%{KVERREL}%{?2:.%{2}}/extra\
 %if %{with_debuginfo}\
 %ifnarch noarch\
 %{expand:%%files -f debuginfo%{?2}.list %{?2:%{2}-}debuginfo}\
@@ -2096,6 +2172,9 @@ fi
 #                 ||----w |
 #                 ||     ||
 %changelog
+* Tue Nov 29 2011 Josh Boyer <jwboyer@redhat.com>
+- Add modules-extra subpackage
+
 * Tue Nov 29 2011 Josh Boyer <jwboyer@redhat.com> 3.2.0-0.rc3.git1.1
 - Linux 3.2-rc3-git1