module/module-base/lttng-modules: Improve kernel module dependencies

If we have DEPENDS = "virtual/kernel" is means that the kernel module
depends on the kernel's do_populate_sysroot task. This is not entirely
desireable since that depends on do_install which depends on
do_compile_kernelmodules and so on. In a situation where rm_work in involved
this can cause some pretty length build cycles after the kernel workdir
has been cleaned up by rm_work.

As well as removing this, take the opportunity to clean up duplicated
dependency lines, tweak the dependency of make_scripts for the same
reason and generally try and make things more readable.

(From OE-Core rev: a641247d262971db2d44815c5a668e7e50bdaf4f)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/classes/module-base.bbclass

@@ -1,5 +1,8 @@
 inherit kernel-arch
 
+# This is instead of DEPENDS = "virtual/kernel"
+do_configure[depends] += "virtual/kernel:do_shared_workdir"
+
 export OS = "${TARGET_OS}"
 export CROSS_COMPILE = "${TARGET_PREFIX}"
 
@@ -15,8 +18,6 @@ KERNEL_OBJECT_SUFFIX = ".ko"
 # kernel modules are generally machine specific
 PACKAGE_ARCH = "${MACHINE_ARCH}"
 
-do_configure[depends] += "virtual/kernel:do_shared_workdir"
-
 # Function to ensure the kernel scripts are created. Expected to
 # be called before do_compile. See module.bbclass for an exmaple.
 do_make_scripts() {

meta/classes/module.bbclass

@@ -1,10 +1,8 @@
-DEPENDS += "virtual/kernel"
-
 inherit module-base kernel-module-split
 
 addtask make_scripts after do_patch before do_compile
 do_make_scripts[lockfiles] = "${TMPDIR}/kernel-scripts.lock"
-do_make_scripts[deptask] = "do_populate_sysroot"
+do_make_scripts[depends] += "virtual/kernel:do_shared_workdir"
 
 EXTRA_OEMAKE += "KERNEL_SRC=${STAGING_KERNEL_DIR}"
 

meta/recipes-kernel/lttng/lttng-modules_2.6.0.bb

@@ -6,9 +6,6 @@ LIC_FILES_CHKSUM = "file://LICENSE;md5=1412caf5a1aa90d6a48588a4794c0eac \
                     file://gpl-2.0.txt;md5=751419260aa954499f7abaabaa882bbe \
                     file://lgpl-2.1.txt;md5=243b725d71bb5df4a1e5920b344b86ad"
 
-DEPENDS = "virtual/kernel"
-do_configure[depends] += "virtual/kernel:do_shared_workdir"
-
 inherit module
 
 SRCREV = "1b2a5429de815c95643df2eadf91253909708728"