[Pkg-dkms-maint] Bug#710535: dkms: Add option to build for all kernels

[Daniel Dehennin]

Package: dkms
Severity: wishlist
Version: 2.2.0.3-1.2

Dear Maintainer,

In our derivative we provided a patched kernel.

To avoid overpatching the kernel for drivers, we provides DKMS packages,
but we have an issue with detection of newest kernel version.

The version comparaison is based on $(uname -r), if we provide a kernel
with the same number but a "lower" local part, the DKMS module is not
compiled for it, for example:

The work around is to let dkms_autoinstaller do the job: 1) install the
DKMS module, then install the kernel headers, installing both in the
same "apt-get install" invocation fails.

I made a patch to add an option to build the DKMS modules for all
installed kernels.

Regards.

The following changes since commit 58ced114e00149af4c7f5af49fd066e8fbed32b9:

  update changelog (2011-12-07 13:30:49 -0600)

are available in the git repository at:

  git://git.baby-gnu.org/dkms.git feature/build-for-all-kernels

for you to fetch changes up to 71e6b386bcc4b48192f2363bbc79c0caf1fd9057:

  Add an option to build and install module for all kernel versions. (2013-05-31 19:28:06 +0200)

----------------------------------------------------------------
Daniel Dehennin (1):
      Add an option to build and install module for all kernel versions.

 dkms.8               |    6 ++++++
 dkms_common.postinst |    8 ++++++--
 2 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/dkms.8 b/dkms.8
index 908d9db..deb8bfa 100644
--- a/dkms.8
+++ b/dkms.8
@@ -832,6 +832,12 @@ being built for does not match against this regular expression, the dkms build
 will error out.  For example, if you set it as ="^2\.4.*", your module would not be
 built for 2.6 kernels.
 .TP
+.B BUILD_ALL_KERNELS=
+If this directive is set to
+.B yes
+then your module will be built for all founded kernels. By default,
+the module is built only for the current one and newest.
+.TP
 .B BUILD_EXCLUSIVE_ARCH=
 This optional directive functions very similarly to
 .B BUILD_EXCLUSIVE_KERNEL
diff --git a/dkms_common.postinst b/dkms_common.postinst
index d8cf3a7..370b0a8 100644
--- a/dkms_common.postinst
+++ b/dkms_common.postinst
@@ -189,7 +189,9 @@ fi
 #
 # NOTE: if the headers are not installed then the
 #       module won't be built, as usual
-if [ -z "$UPGRADE" ]; then
+if [ -n "$BUILD_ALL_KERNELS" ]; then
+    echo "Force build for all kernels..."
+elif [ -z "$UPGRADE" ]; then
     echo "First Installation: checking all kernels..."
     for KERNEL in $KERNELS; do
         if [ ${KERNEL} = ${CURRENT_KERNEL} ]; then
@@ -211,7 +213,9 @@ NEWEST_KERNEL=$(get_newest_kernel "$KERNELS")
 if [ `_is_kernel_name_correct $CURRENT_KERNEL` = "yes" ]; then
     # See if it's worth building the module for both the newest kernel
     # and for the current kernel
-    if [ -n "$NEWEST_KERNEL" ] && [ ${CURRENT_KERNEL} != ${NEWEST_KERNEL} ]; then
+    if [ -n "BUILD_ALL_KERNELS" ]; then
+	echo "Building for $KERNELS"
+    elif [ -n "$NEWEST_KERNEL" ] && [ ${CURRENT_KERNEL} != ${NEWEST_KERNEL} ]; then
         echo "Building for $CURRENT_KERNEL and $NEWEST_KERNEL"
         KERNELS="$CURRENT_KERNEL $NEWEST_KERNEL"
     else


-- System Information:
Debian Release: jessie/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (500, 'testing'), (90, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 3.8-2-amd64 (SMP w/2 CPU cores)
Locale: LANG=fr_FR.UTF-8, LC_CTYPE=fr_FR.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash

-- 
Daniel Dehennin
Récupérer ma clef GPG:
gpg --keyserver pgp.mit.edu --recv-keys 0x7A6FE2DF
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