Fix kaudit warnings for guest kernel

1. CONFIG_UNWINDER_FRAME_POINTER

   New in kernel v4.15+. Since we want to disable FRAME_POINTER,
   this one should be disabled too (or it will select FRAME_POINTER).
   Adding it will lead to honoring our FRAME_POINTER setting.

   Note that having a kernel unwinder is mandatory, so only disabling
   UNWINDER_FRAME_POINTER will automatically select UNWINDER_ORC on
   x86_64.
   Set CONFIG_UNWINDER_GUESS=y instead to avoid runtime overhead with
   the cost of having less precise debug information on kernel crashes.

2. CONFIG_REGMAP

   Selected by I2C_DESIGNWARE_CORE, which we enabled as a load-module.
   Adding it to i2c_m.cfg only silences the kaudit warning, as it is
   already selected.

3. CONFIG_BLK_DEV_SR

   reduced_kernel_footprint_guest: Remove config cdrom_n.scc, which is
   used as dependency by other features (cloud-init NoCloud on CDROM).

Change-Id: I03f5f19c6ea535dfe90cae2068ffbdc99b07f8f4
Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>

3 files changed, 3 insertions, 1 deletions

diff --git a/features/compilechecks/compilechecks_n.cfg b/features/compilechecks/compilechecks_n.cfg
index b8cbed4..c794416 100644
--- a/features/compilechecks/compilechecks_n.cfg
+++ b/features/compilechecks/compilechecks_n.cfg
@@ -3,3 +3,5 @@ CONFIG_UNUSED_SYMBOLS=n
 CONFIG_DEBUG_FS=n
 CONFIG_SECTION_MISMATCH_WARN_ONLY=n
 CONFIG_FRAME_POINTER=n
+CONFIG_UNWINDER_FRAME_POINTER=n
+CONFIG_UNWINDER_GUESS=y
diff --git a/features/i2csupport/i2c_m.cfg b/features/i2csupport/i2c_m.cfg
index 68323b4..39561ca 100644
--- a/features/i2csupport/i2c_m.cfg
+++ b/features/i2csupport/i2c_m.cfg
@@ -1,3 +1,4 @@
+CONFIG_REGMAP=y
 CONFIG_I2C=m
 CONFIG_I2C_SMBUS=m
 CONFIG_I2C_BOARDINFO=y
diff --git a/features/reduced_kernel_footprint_guest/reduced_kernel_footprint_guest.scc b/features/reduced_kernel_footprint_guest/reduced_kernel_footprint_guest.scc
index a502ffe..33a9aaa 100644
--- a/features/reduced_kernel_footprint_guest/reduced_kernel_footprint_guest.scc
+++ b/features/reduced_kernel_footprint_guest/reduced_kernel_footprint_guest.scc
@@ -39,7 +39,6 @@ include features/wlan/wlan_n.scc
 include features/ftrace/ftrace_n.scc
 include features/debug/debug_kernel_n.scc
 include features/ata/ata_n.scc
-include features/cdrom/cdrom_n.scc
 include features/hwmon/hwmon_n.scc
 include features/usbsupport/usbsupport_n.scc
 include features/touchscreen/touchscreen_n.scc