Split kernel into kernel-core and kernel-drivers subpackages

This creates kernel-core and kernel-drivers subpackages.  The kernel package
remains as a meta-package the requires both of the subpackages.  This allows
most installs to continue on as-is with upgrades working.

The contents of the kernel-core and kernel-drivers subpackages are determined
at build time through the filter-modules.sh script.  This script "removes"
pre-defined subsystems and modules and generates a filelist for the %files
section of each subpackage.  The contents of each are per-arch, with arch
override files taken into account.  This allows us to make the split useful
for varying arches.

10 files changed, 412 insertions, 55 deletions

diff --git a/filter-aarch64.sh b/filter-aarch64.sh
new file mode 100644
index 000000000..bf58af299
--- /dev/null
+++ b/filter-aarch64.sh
@@ -0,0 +1,14 @@
+#! /bin/bash
+
+# This is the aarch64 override file for the core/drivers package split.  The
+# module directories listed here and in the generic list in filter-modules.sh
+# will be moved to the resulting kernel-drivers package for this arch.
+# Anything not listed in those files will be in the kernel-core package.
+#
+# Please review the default list in filter-modules.sh before making
+# modifications to the overrides below.  If something should be removed across
+# all arches, remove it in the default instead of per-arch.
+
+driverdirs="atm auxdisplay bcma bluetooth fmc infiniband isdn leds media memstick message mmc mtd nfc ntb pcmcia platform power ssb staging uio uwb"
+
+singlemods="ntb_netdev iscsi_ibft iscsi_boot_sysfs iscsi_tcp megaraid pmcraid qla1280 9pnet_rdma svcrdma xprtrdma hid-picolcd hid-prodikeys hwa-hc hwpoison-inject "
diff --git a/filter-armv7hl.sh b/filter-armv7hl.sh
new file mode 100644
index 000000000..c249d1766
--- /dev/null
+++ b/filter-armv7hl.sh
@@ -0,0 +1,14 @@
+#! /bin/bash
+
+# This is the armv7hl override file for the core/drivers package split.  The
+# module directories listed here and in the generic list in filter-modules.sh
+# will be moved to the resulting kernel-drivers package for this arch.
+# Anything not listed in those files will be in the kernel-core package.
+#
+# Please review the default list in filter-modules.sh before making
+# modifications to the overrides below.  If something should be removed across
+# all arches, remove it in the default instead of per-arch.
+
+driverdirs="atm auxdisplay bcma bluetooth fmc infiniband isdn media memstick message nfc ntb pcmcia platform ssb staging uio uwb"
+
+singlemods="ntb_netdev iscsi_ibft iscsi_boot_sysfs iscsi_tcp megaraid pmcraid qla1280 9pnet_rdma svcrdma xprtrdma hid-picolcd hid-prodikeys hwa-hc hwpoison-inject"
diff --git a/filter-i686.sh b/filter-i686.sh
new file mode 100644
index 000000000..1deab9423
--- /dev/null
+++ b/filter-i686.sh
@@ -0,0 +1,14 @@
+#! /bin/bash
+
+# This is the i686 override file for the core/drivers package split.  The
+# module directories listed here and in the generic list in filter-modules.sh
+# will be moved to the resulting kernel-drivers package for this arch.
+# Anything not listed in those files will be in the kernel-core package.
+#
+# Please review the default list in filter-modules.sh before making
+# modifications to the overrides below.  If something should be removed across
+# all arches, remove it in the default instead of per-arch.
+
+driverdirs="atm auxdisplay bcma bluetooth fmc infiniband isdn leds media memstick message mfd mmc mtd nfc ntb pcmcia platform power ssb staging uio uwb"
+
+singlemods="ntb_netdev iscsi_ibft iscsi_boot_sysfs iscsi_tcp megaraid pmcraid qla1280 9pnet_rdma svcrdma xprtrdma hid-picolcd hid-prodikeys hwa-hc hwpoison-inject hid-sensor-hub hid-sensor-magn-3d hid-sensor-incl-3d hid-sensor-gyro-3d hid-sensor-iio-common hid-sensor-accel-3d hid-sensor-trigger hid-sensor-als"
diff --git a/filter-modules.sh b/filter-modules.sh
new file mode 100755
index 000000000..abe581278
--- /dev/null
+++ b/filter-modules.sh
@@ -0,0 +1,143 @@
+#! /bin/bash
+#
+# Called as filter-modules.sh list-of-modules Arch
+
+# This script filters the modules into the kernel-core and kernel-drivers
+# subpackages.  We list out subsystems/subdirs to prune from the installed
+# module directory.  What is left is put into the kernel-core package.  What is
+# pruned is contained in the kernel-drivers package.
+#
+# This file contains the default subsys/subdirs to prune from all architectures.
+# If an architecture needs to differ, we source a per-arch filter-<arch>.sh file
+# that contains the set of override lists to be used instead.  If a module or
+# subsys should be in kernel-drivers on all arches, please change the defaults
+# listed here.
+
+# Set the default dirs/modules to filter out
+driverdirs="atm auxdisplay bcma bluetooth fmc iio infiniband isdn leds media memstick message mfd mmc mtd nfc ntb pcmcia platform power ssb staging uio uwb"
+
+netdrvs="appletalk dsa hamradio ieee802154 irda ppp slip usb wireless"
+
+ethdrvs="3com adaptec alteon amd atheros broadcom cadence calxeda chelsio cisco dec dlink emulex icplus marvell mellanox neterion nvidia oki-semi packetengines qlogic rdc renesas sfc silan sis smsc stmicro sun tehuti ti wiznet xircom"
+
+scsidrvs="aacraid aic7xxx aic94xx be2iscsi bfa bnx2i bnx2fc csiostor cxgbi esas2r fcoe fnic isci libsas lpfc megaraid mpt2sas mpt3sas mvsas pm8001 qla2xxx qla4xxx sym53c8xx_2 ufs"
+
+ttydrvs="ipwireless"
+
+usbdrvs="atm wusbcore"
+
+fsdrvs="affs befs coda cramfs dlm ecryptfs hfs hfsplus isofs jfs minix ncpfs nilfs2 ocfs2 reiserfs romfs squashfs sysv ubifs udf ufs"
+
+netprots="appletalk atm ax25 batman-adv bluetooth dccp dsa ieee802154 irda l2tp mac80211 mac802154 netrom nfc rds rfkill rose sctp wireless"
+
+drmdrvs="ast gma500 mgag200 via nouveau"
+
+singlemods="ntb_netdev iscsi_ibft iscsi_boot_sysfs iscsi_tcp megaraid pmcraid qla1280 9pnet_rdma svcrdma xprtrdma hid-picolcd hid-prodikeys hwa-hc hwpoison-inject hid-sensor-hub"
+
+# Grab the arch-specific filter list overrides
+source ./filter-$2.sh
+
+filter_dir() {
+	filelist=$1
+	dir=$2
+
+	grep -v -e "${dir}/" ${filelist} > ${filelist}.tmp
+
+	if [ $? -ne 0 ]
+	then
+		echo "Couldn't remove ${dir}.  Skipping."
+	else
+		grep -e "${dir}/" ${filelist} >> k-d.list
+		mv ${filelist}.tmp $filelist
+	fi
+	
+	return 0
+}
+
+filter_ko() {
+	filelist=$1
+	mod=$2
+
+	grep -v -e "${mod}.ko" ${filelist} > ${filelist}.tmp
+
+	if [ $? -ne 0 ]
+	then
+		echo "Couldn't remove ${mod}.ko  Skipping."
+	else
+		grep -e "${mod}.ko" ${filelist} >> k-d.list
+		mv ${filelist}.tmp $filelist
+	fi
+	
+	return 0
+}
+
+# Filter the drivers/ subsystems
+for subsys in ${driverdirs}
+do
+	filter_dir $1 drivers/${subsys}
+done
+
+# Filter the networking drivers
+for netdrv in ${netdrvs}
+do
+	filter_dir $1 drivers/net/${netdrv}
+done
+
+# Filter the ethernet drivers
+for eth in ${ethdrvs}
+do
+	filter_dir $1 drivers/net/ethernet/${eth}
+done
+
+# SCSI
+for scsi in ${scsidrvs}
+do
+	filter_dir $1 drivers/scsi/${scsi}
+done
+
+# TTY
+for tty in ${ttydrvs}
+do
+	filter_dir $1 drivers/tty/${tty}
+done
+
+# USB
+for usb in ${usbdrvs}
+do
+	filter_dir $1 drivers/usb/${usb}
+done
+
+# Filesystems
+for fs in ${fsdrvs}
+do
+	filter_dir $1 fs/${fs}
+done
+
+# Network protocols
+for prot in ${netprots}
+do
+	filter_dir $1 kernel/net/${prot}
+done
+
+# DRM
+for drm in ${drmdrvs}
+do
+	filter_dir $1 drivers/gpu/drm/${drm}
+done
+
+# Just kill sound.
+filter_dir $1 kernel/sound
+
+# Now go through and filter any single .ko files that might have deps on the
+# things we filtered above
+for mod in ${singlemods}
+do
+        filter_ko $1 ${mod}
+done
+
+# Go through our generated drivers list and remove the .ko files.  We'll
+# restore them later.
+for mod in `cat k-d.list`
+do
+	rm -rf $mod
+done
diff --git a/filter-ppc.sh b/filter-ppc.sh
new file mode 100644
index 000000000..1f173ff25
--- /dev/null
+++ b/filter-ppc.sh
@@ -0,0 +1,14 @@
+#! /bin/bash
+
+# This is the ppc override file for the core/drivers package split.  The
+# module directories listed here and in the generic list in filter-modules.sh
+# will be moved to the resulting kernel-drivers package for this arch.
+# Anything not listed in those files will be in the kernel-core package.
+#
+# Please review the default list in filter-modules.sh before making
+# modifications to the overrides below.  If something should be removed across
+# all arches, remove it in the default instead of per-arch.
+
+driverdirs="atm auxdisplay bcma bluetooth fmc infiniband isdn leds media memstick message mmc mtd nfc ntb pcmcia platform power ssb staging uio uwb"
+
+singlemods="ntb_netdev iscsi_ibft iscsi_boot_sysfs iscsi_tcp megaraid pmcraid qla1280 9pnet_rdma svcrdma xprtrdma hid-picolcd hid-prodikeys hwa-hc hwpoison-inject"
diff --git a/filter-ppc64.sh b/filter-ppc64.sh
new file mode 100644
index 000000000..8d58c4a1e
--- /dev/null
+++ b/filter-ppc64.sh
@@ -0,0 +1,14 @@
+#! /bin/bash
+
+# This is the ppc64 override file for the core/drivers package split.  The
+# module directories listed here and in the generic list in filter-modules.sh
+# will be moved to the resulting kernel-drivers package for this arch.
+# Anything not listed in those files will be in the kernel-core package.
+#
+# Please review the default list in filter-modules.sh before making
+# modifications to the overrides below.  If something should be removed across
+# all arches, remove it in the default instead of per-arch.
+
+driverdirs="atm auxdisplay bcma bluetooth fmc infiniband isdn leds media memstick message mmc mtd nfc ntb pcmcia platform power ssb staging uio uwb"
+
+singlemods="ntb_netdev iscsi_ibft iscsi_boot_sysfs iscsi_tcp megaraid pmcraid qla1280 9pnet_rdma svcrdma xprtrdma hid-picolcd hid-prodikeys hwa-hc hwpoison-inject"
diff --git a/filter-ppc64le.sh b/filter-ppc64le.sh
new file mode 100644
index 000000000..53a21f9d2
--- /dev/null
+++ b/filter-ppc64le.sh
@@ -0,0 +1,14 @@
+#! /bin/bash
+
+# This is the ppc64le override file for the core/drivers package split.  The
+# module directories listed here and in the generic list in filter-modules.sh
+# will be moved to the resulting kernel-drivers package for this arch.
+# Anything not listed in those files will be in the kernel-core package.
+#
+# Please review the default list in filter-modules.sh before making
+# modifications to the overrides below.  If something should be removed across
+# all arches, remove it in the default instead of per-arch.
+
+driverdirs="atm auxdisplay bcma bluetooth fmc infiniband isdn leds media memstick message mmc mtd nfc ntb pcmcia platform power ssb staging uio uwb"
+
+singlemods="ntb_netdev iscsi_ibft iscsi_boot_sysfs iscsi_tcp megaraid pmcraid qla1280 9pnet_rdma svcrdma xprtrdma hid-picolcd hid-prodikeys hwa-hc hwpoison-inject"
diff --git a/filter-s390x.sh b/filter-s390x.sh
new file mode 100644
index 000000000..cf8640624
--- /dev/null
+++ b/filter-s390x.sh
@@ -0,0 +1,12 @@
+#! /bin/bash
+
+# This is the s390x override file for the core/drivers package split.  The
+# module directories listed here and in the generic list in filter-modules.sh
+# will be moved to the resulting kernel-drivers package for this arch.
+# Anything not listed in those files will be in the kernel-core package.
+#
+# Please review the default list in filter-modules.sh before making
+# modifications to the overrides below.  If something should be removed across
+# all arches, remove it in the default instead of per-arch.
+
+# Defaults work so no need to override
diff --git a/filter-x86_64.sh b/filter-x86_64.sh
new file mode 100644
index 000000000..2a0b2d7b0
--- /dev/null
+++ b/filter-x86_64.sh
@@ -0,0 +1,12 @@
+#! /bin/bash
+
+# This is the x86_64 override file for the core/drivers package split.  The
+# module directories listed here and in the generic list in filter-modules.sh
+# will be moved to the resulting kernel-drivers package for this arch.
+# Anything not listed in those files will be in the kernel-core package.
+#
+# Please review the default list in filter-modules.sh before making
+# modifications to the overrides below.  If something should be removed across
+# all arches, remove it in the default instead of per-arch.
+
+# Defaults work so no need to override
diff --git a/kernel.spec b/kernel.spec
index 6c526a67c..9f36fe0d2 100644
--- a/kernel.spec
+++ b/kernel.spec
@@ -34,7 +34,7 @@ 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 9
 %global fedora_build %{baserelease}
 
 # base_sublevel is the kernel version we're starting with and patching
@@ -385,29 +385,6 @@ Summary: The Linux kernel
 %define kernel_prereq  fileutils, systemd >= 203-2
 %define initrd_prereq  dracut >= 027
 
-#
-# This macro does requires, provides, conflicts, obsoletes for a kernel package.
-#	%%kernel_reqprovconf <subpackage>
-# It uses any kernel_<subpackage>_conflicts and kernel_<subpackage>_obsoletes
-# macros defined above.
-#
-%define kernel_reqprovconf \
-Provides: kernel = %{rpmversion}-%{pkg_release}\
-Provides: kernel-%{_target_cpu} = %{rpmversion}-%{pkg_release}%{?1:+%{1}}\
-Provides: kernel-drm-nouveau = 16\
-Provides: kernel-uname-r = %{KVERREL}%{?1:+%{1}}\
-Requires(pre): %{kernel_prereq}\
-Requires(pre): %{initrd_prereq}\
-Requires(pre): linux-firmware >= 20130724-29.git31f6b30\
-Requires(preun): systemd >= 200\
-%{expand:%%{?kernel%{?1:_%{1}}_conflicts:Conflicts: %%{kernel%{?1:_%{1}}_conflicts}}}\
-%{expand:%%{?kernel%{?1:_%{1}}_obsoletes:Obsoletes: %%{kernel%{?1:_%{1}}_obsoletes}}}\
-%{expand:%%{?kernel%{?1:_%{1}}_provides:Provides: %%{kernel%{?1:_%{1}}_provides}}}\
-# We can't let RPM do the dependencies automatic because it'll then pick up\
-# a correct but undesirable perl dependency from the module headers which\
-# isn't required for the kernel proper to function\
-AutoReqProv: no\
-%{nil}
 
 Name: kernel%{?variant}
 Group: System Environment/Kernel
@@ -419,8 +396,9 @@ Release: %{pkg_release}
 # SET %%nobuildarches (ABOVE) INSTEAD
 ExclusiveArch: noarch %{all_x86} x86_64 ppc ppc64 ppc64p7 s390 s390x %{arm} aarch64 ppc64le
 ExclusiveOS: Linux
+Requires: kernel-%{?variant:%{variant}-}core-uname-r = %{KVERREL}%{?variant}
+Requires: kernel-%{?variant:%{variant}-}drivers-uname-r = %{KVERREL}%{?variant}
 
-%kernel_reqprovconf
 
 #
 # List the packages used during the kernel build
@@ -464,6 +442,15 @@ Source15: merge.pl
 Source16: mod-extra.list
 Source17: mod-extra.sh
 Source18: mod-sign.sh
+Source90: filter-x86_64.sh
+Source91: filter-armv7hl.sh
+Source92: filter-i686.sh
+Source93: filter-aarch64.sh
+Source94: filter-ppc.sh
+Source95: filter-ppc64.sh
+Source96: filter-ppc64le.sh
+Source97: filter-s390x.sh
+Source99: filter-modules.sh
 %define modsign_cmd %{SOURCE18}
 
 Source19: Makefile.release
@@ -652,10 +639,31 @@ Patch25068: fanotify-fix-EOVERFLOW-on-64-bit.patch
 BuildRoot: %{_tmppath}/kernel-%{KVERREL}-root
 
 %description
-The kernel package contains the Linux kernel (vmlinuz), the core of any
-Linux operating system.  The kernel handles the basic functions
-of the operating system: memory allocation, process allocation, device
-input and output, etc.
+The kernel meta package
+
+#
+# This macro does requires, provides, conflicts, obsoletes for a kernel package.
+#	%%kernel_reqprovconf <subpackage>
+# It uses any kernel_<subpackage>_conflicts and kernel_<subpackage>_obsoletes
+# macros defined above.
+#
+%define kernel_reqprovconf \
+Provides: kernel = %{rpmversion}-%{pkg_release}\
+Provides: kernel-%{_target_cpu} = %{rpmversion}-%{pkg_release}%{?1:+%{1}}\
+Provides: kernel-drm-nouveau = 16\
+Provides: kernel-uname-r = %{KVERREL}%{?1:+%{1}}\
+Requires(pre): %{kernel_prereq}\
+Requires(pre): %{initrd_prereq}\
+Requires(pre): linux-firmware >= 20130724-29.git31f6b30\
+Requires(preun): systemd >= 200\
+%{expand:%%{?kernel%{?1:_%{1}}_conflicts:Conflicts: %%{kernel%{?1:_%{1}}_conflicts}}}\
+%{expand:%%{?kernel%{?1:_%{1}}_obsoletes:Obsoletes: %%{kernel%{?1:_%{1}}_obsoletes}}}\
+%{expand:%%{?kernel%{?1:_%{1}}_provides:Provides: %%{kernel%{?1:_%{1}}_provides}}}\
+# We can't let RPM do the dependencies automatic because it'll then pick up\
+# a correct but undesirable perl dependency from the module headers which\
+# isn't required for the kernel proper to function\
+AutoReqProv: no\
+%{nil}
 
 %package headers
 Summary: Header files for the Linux kernel for use by glibc
@@ -837,53 +845,65 @@ Provides: kernel%{?1:-%{1}}-modules-extra = %{version}-%{release}%{?1:+%{1}}\
 Provides: installonlypkg(kernel-module)\
 Provides: kernel%{?1:-%{1}}-modules-extra-uname-r = %{KVERREL}%{?1:+%{1}}\
 Requires: kernel-uname-r = %{KVERREL}%{?1:+%{1}}\
+Requires: kernel-drivers-uname-r = %{KVERREL}%{?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>-drivers package.
+#	%%kernel_drivers_package <subpackage> <pretty-name>
+#
+%define kernel_drivers_package() \
+%package %{?1:%{1}-}drivers\
+Summary: kernel modules to match the %{?2:%{2}-}core kernel\
+Group: System Environment/Kernel\
+Provides: kernel%{?1:-%{1}}-drivers-%{_target_cpu} = %{version}-%{release}\
+Provides: kernel-drivers-%{_target_cpu} = %{version}-%{release}%{?1:+%{1}}\
+Provides: kernel-drivers = %{version}-%{release}%{?1:+%{1}}\
+Provides: installonlypkg(kernel-module)\
+Provides: kernel-drivers-uname-r = %{KVERREL}%{?1:+%{1}}\
+Requires: kernel-uname-r = %{KVERREL}%{?1:+%{1}}\
+AutoReqProv: no\
+%description -n kernel%{?variant}%{?1:-%{1}}-drivers\
+This package provides commonly used kernel modules for the %{?2:%{2}-}core 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>
 #
 %define kernel_variant_package(n:) \
-%package %1\
+%package %{?1:%{1}-}core\
 Summary: %{variant_summary}\
 Group: System Environment/Kernel\
-%kernel_reqprovconf\
-%{expand:%%kernel_devel_package %1 %{!?-n:%1}%{?-n:%{-n*}}}\
+Provides: kernel-%{?1:%{1}-}core-uname-r = %{KVERREL}%{?1:+%{1}}\
+%{expand:%%kernel_reqprovconf}\
+%{expand:%%kernel_devel_package %{?1:%{1}} %{!?{-n}:%{1}}%{?{-n}:%{-n*}}}\
+%{expand:%%kernel_drivers_package %{?1:%{1}} %{!?{-n}:%{1}}%{?{-n}:%{-n*}}}\
 %if %{with_extra}\
-%{expand:%%kernel_modules_extra_package %1 %{!?-n:%1}%{?-n:%{-n*}}}\
+%{expand:%%kernel_modules_extra_package %{?1:%{1}} %{!?{-n}:%{1}}%{?{-n}:%{-n*}}}\
 %endif\
-%{expand:%%kernel_debuginfo_package %1}\
+%{expand:%%kernel_debuginfo_package %{?1:%{1}}}\
 %{nil}
 
-
-# First the auxiliary packages of the main kernel package.
-%kernel_devel_package
-%if %{with_extra}
-%kernel_modules_extra_package
-%endif
-%kernel_debuginfo_package
-
-
 # Now, each variant package.
 
 %define variant_summary The Linux kernel compiled for SMP machines
 %kernel_variant_package -n SMP smp
-%description smp
+%description smp-core
 This package includes a SMP version of the Linux kernel. It is
 required only on machines with two or more CPUs as well as machines with
 hyperthreading technology.
 
 Install the kernel-smp package if your machine uses two or more CPUs.
 
-
 %ifnarch armv7hl
 %define variant_summary The Linux kernel compiled for PAE capable machines
 %kernel_variant_package %{pae}
-%description %{pae}
+%description %{pae}-core
 This package includes a version of the Linux kernel with support for up to
 64GB of high memory. It requires a CPU with Physical Address Extensions (PAE).
 The non-PAE kernel can only address up to 4GB of memory.
@@ -891,7 +911,7 @@ Install the kernel-PAE package if your machine has more than 4GB of memory.
 %else
 %define variant_summary The Linux kernel compiled for Cortex-A15
 %kernel_variant_package %{pae}
-%description %{pae}
+%description %{pae}-core
 This package includes a version of the Linux kernel with support for
 Cortex-A15 devices with LPAE and HW virtualisation support
 %endif
@@ -900,7 +920,7 @@ Cortex-A15 devices with LPAE and HW virtualisation support
 %define variant_summary The Linux kernel compiled with extra debugging enabled for PAE capable machines
 %kernel_variant_package %{pae}debug
 Obsoletes: kernel-PAE-debug
-%description %{pae}debug
+%description %{pae}debug-core
 This package includes a version of the Linux kernel with support for up to
 64GB of high memory. It requires a CPU with Physical Address Extensions (PAE).
 The non-PAE kernel can only address up to 4GB of memory.
@@ -913,7 +933,7 @@ on kernel bugs, as some of these options impact performance noticably.
 
 %define variant_summary The Linux kernel compiled with extra debugging enabled
 %kernel_variant_package debug
-%description debug
+%description debug-core
 The kernel package contains the Linux kernel (vmlinuz), the core of any
 Linux operating system.  The kernel handles the basic functions
 of the operating system:  memory allocation, process allocation, device
@@ -923,6 +943,16 @@ This variant of the kernel has numerous debugging options enabled.
 It should only be installed when trying to gather additional information
 on kernel bugs, as some of these options impact performance noticably.
 
+# And finally the main -core package
+
+%define variant_summary The Linux kernel
+%kernel_variant_package 
+%description core
+The kernel package contains the Linux kernel (vmlinuz), the core of any
+Linux operating system.  The kernel handles the basic functions
+of the operating system: memory allocation, process allocation, device
+input and output, etc.
+
 
 %prep
 # do a few sanity-checks for --with *only builds
@@ -1598,6 +1628,55 @@ BuildKernel() {
     %{SOURCE17} $RPM_BUILD_ROOT/lib/modules/$KernelVer %{SOURCE16}
 %endif
 
+    #
+    # Generate the kernel-core and kernel-drivers files lists
+    #
+
+    # Copy the System.map file for depmod to use, and create a backup of the
+    # full module tree so we can restore it after we're done filtering
+    cp System.map $RPM_BUILD_ROOT/.
+    pushd $RPM_BUILD_ROOT
+    mkdir restore
+    cp -r lib/modules/$KernelVer/* restore/.
+
+    # don't include anything going into k-m-e in the file lists
+    rm -rf lib/modules/$KernelVer/extra
+
+    # Find all the module files and filter them out into the core and drivers
+    # lists.  This actually removes anything going into -drivers from the dir.
+    find lib/modules/$KernelVer/kernel -name *.ko | sort -n > modules.list
+	cp $RPM_SOURCE_DIR/filter-*.sh .
+    %{SOURCE99} modules.list %{_target_cpu}
+	rm filter-*.sh
+
+    # Run depmod on the resulting module tree and make sure it isn't broken
+    depmod -b . -aeF ./System.map $KernelVer
+    # remove files that will be auto generated by depmod at rpm -i time
+    pushd $RPM_BUILD_ROOT/lib/modules/$KernelVer/
+        rm -f modules.{alias*,builtin.bin,dep*,*map,symbols*,devname,softdep}
+    popd
+
+    # Go back and find all of the various directories in the tree.  We use this
+    # for the dir lists in kernel-core
+    find lib/modules/$KernelVer/kernel -type d | sort -n > module-dirs.list
+
+    # Cleanup
+    rm System.map
+    cp -r restore/* lib/modules/$KernelVer/.
+    rm -rf restore
+    popd
+
+    # Make sure the files lists start with absolute paths or rpmbuild fails.
+    # Also add in the dir entries
+    sed -e 's/^lib*/\/lib/' $RPM_BUILD_ROOT/k-d.list > ../kernel${Flavour:+-${Flavour}}-drivers.list
+    sed -e 's/^lib*/%dir \/lib/' $RPM_BUILD_ROOT/module-dirs.list > ../kernel${Flavour:+-${Flavour}}-core.list
+    sed -e 's/^lib*/\/lib/' $RPM_BUILD_ROOT/modules.list >> ../kernel${Flavour:+-${Flavour}}-core.list
+
+    # Cleanup
+    rm -f $RPM_BUILD_ROOT/k-d.list
+    rm -f $RPM_BUILD_ROOT/modules.list
+    rm -f $RPM_BUILD_ROOT/module-dirs.list
+
 %if %{signmodules}
     # Save the signing keys so we can sign the modules in __modsign_install_post
     cp signing_key.priv signing_key.priv.sign${Flav}
@@ -1866,11 +1945,28 @@ fi\
 
 #
 # This macro defines a %%post script for a kernel*-modules-extra package.
+# It also defines a %%postun script that does the same thing.
 #	%%kernel_modules_extra_post [<subpackage>]
 #
 %define kernel_modules_extra_post() \
 %{expand:%%post %{?1:%{1}-}modules-extra}\
 /sbin/depmod -a %{KVERREL}%{?1:+%{1}}\
+%{nil}\
+%{expand:%%postun %{?1:%{1}-}modules-extra}\
+/sbin/depmod -a %{KVERREL}%{?1:+%{1}}\
+%{nil}
+
+#
+# This macro defines a %%post script for a kernel*-drivers package.
+# It also defines a %%postun script that does the same thing.
+#	%%kernel_drivers_post [<subpackage>]
+#
+%define kernel_drivers_post() \
+%{expand:%%post %{?1:%{1}-}drivers}\
+/sbin/depmod -a %{KVERREL}%{?1:+%{1}}\
+%{nil}\
+%{expand:%%postun %{?1:%{1}-}drivers}\
+/sbin/depmod -a %{KVERREL}%{?1:+%{1}}\
 %{nil}
 
 # This macro defines a %%posttrans script for a kernel package.
@@ -1878,7 +1974,7 @@ fi\
 # More text can follow to go at the end of this variant's %%post.
 #
 %define kernel_variant_posttrans() \
-%{expand:%%posttrans %{?1}}\
+%{expand:%%posttrans %{?1:%{1}-}core}\
 /bin/kernel-install add %{KVERREL}%{?1:+%{1}} /%{image_install_path}/vmlinuz-%{KVERREL}%{?1:+%{1}} || exit $?\
 %{nil}
 
@@ -1889,11 +1985,12 @@ fi\
 #
 %define kernel_variant_post(v:r:) \
 %{expand:%%kernel_devel_post %{?-v*}}\
+%{expand:%%kernel_drivers_post %{?-v*}}\
 %if %{with_extra}\
 %{expand:%%kernel_modules_extra_post %{?-v*}}\
 %endif\
 %{expand:%%kernel_variant_posttrans %{?-v*}}\
-%{expand:%%post %{?-v*}}\
+%{expand:%%post %{?-v*:%{-v*}-}core}\
 %{-r:\
 if [ `uname -i` == "x86_64" -o `uname -i` == "i386" ] &&\
    [ -f /etc/sysconfig/kernel ]; then\
@@ -1906,7 +2003,7 @@ fi}\
 #	%%kernel_variant_preun <subpackage>
 #
 %define kernel_variant_preun() \
-%{expand:%%preun %{?1}}\
+%{expand:%%preun %{?1:%{1}-}core}\
 /bin/kernel-install remove %{KVERREL}%{?1:+%{1}} /%{image_install_path}/vmlinuz-%{KVERREL}%{?1:+%{1}} || exit $?\
 %{nil}
 
@@ -2007,6 +2104,10 @@ fi
 %endif
 %endif # with_perf
 
+# empty meta-package
+%files
+%defattr(-,root,root)
+
 # This is %%{image_install_path} on an arch where that includes ELF files,
 # or empty otherwise.
 %define elf_image_install_path %{?kernel_image_elf:%{image_install_path}}
@@ -2018,7 +2119,7 @@ fi
 #
 %define kernel_variant_files(k:) \
 %if %{1}\
-%{expand:%%files %{?2}}\
+%{expand:%%files -f kernel-%{?2:%{2}-}core.list %{?2:%{2}-}core}\
 %defattr(-,root,root)\
 /%{image_install_path}/%{?-k:%{-k*}}%{!?-k:vmlinuz}-%{KVERREL}%{?2:+%{2}}\
 /%{image_install_path}/.vmlinuz-%{KVERREL}%{?2:+%{2}}.hmac \
@@ -2027,9 +2128,10 @@ fi
 %endif\
 %attr(600,root,root) /boot/System.map-%{KVERREL}%{?2:+%{2}}\
 /boot/config-%{KVERREL}%{?2:+%{2}}\
+%ghost /boot/initramfs-%{KVERREL}%{?2:+%{2}}.img\
 %dir /lib/modules\
 %dir /lib/modules/%{KVERREL}%{?2:+%{2}}\
-/lib/modules/%{KVERREL}%{?2:+%{2}}/kernel\
+%dir /lib/modules/%{KVERREL}%{?2:+%{2}}/kernel\
 /lib/modules/%{KVERREL}%{?2:+%{2}}/build\
 /lib/modules/%{KVERREL}%{?2:+%{2}}/source\
 /lib/modules/%{KVERREL}%{?2:+%{2}}/updates\
@@ -2038,7 +2140,8 @@ fi
 /etc/ld.so.conf.d/kernel-%{KVERREL}%{?2:+%{2}}.conf\
 %endif\
 /lib/modules/%{KVERREL}%{?2:+%{2}}/modules.*\
-%ghost /boot/initramfs-%{KVERREL}%{?2:+%{2}}.img\
+%{expand:%%files -f kernel-%{?2:%{2}-}drivers.list %{?2:%{2}-}drivers}\
+%defattr(-,root,root)\
 %{expand:%%files %{?2:%{2}-}devel}\
 %defattr(-,root,root)\
 /usr/src/kernels/%{KVERREL}%{?2:+%{2}}\
@@ -2077,6 +2180,9 @@ fi
 #                                    ||----w |
 #                                    ||     ||
 %changelog
+* Tue Apr 29 2014 Josh Boyer <jwboyer@fedoraproject.org>
+- Introduce kernel-core/kernel-drivers split for F21 Feature work
+
 * Tue Apr 29 2014 Josh Boyer <jwboyer@fedoraproject.org> - 3.15.0-0.rc3.git1.1
 - Linux v3.15-rc3-41-g2aafe1a4d451
 - Reenable debugging options.