Linker warnings for apparmor.o

[Arvan David Pritchard]

Building the Ubuntu kernel at version 4.4.0-97.120 or 4.4.0-98.121 gives warnings when linking apparmor.o such as:

  LD security/apparmor/apparmor.o
WARNING: security/apparmor/apparmor.o(.text+0x1087b): Section mismatch in reference from the function param_get_mode() to the variable .init.data:apparmor_initialized
(next build fault)
The function param_get_mode() references
the variable __initdata apparmor_initialized.
This is often because param_get_mode lacks a __initdata
annotation or the annotation of apparmor_initialized is wrong.

I believe this is because the __initdata annotation was removed from security/apparmor/lsm.c but not from security/apparmor/include/lib.h

The following patch cleans the compilation warnings, but may not be the correct fix:

--- security/apparmor/include/lib.h.orig 2017-11-02 14:43:59.903230945 +0000
+++ security/apparmor/include/lib.h 2017-11-02 14:44:57.992635353 +0000
@@ -56,7 +56,7 @@
        } while (0)

 /* Flag indicating whether initialization completed */
-extern int apparmor_initialized __initdata;
+extern int apparmor_initialized;

 /* fn's in lib */
 char *aa_split_fqname(char *args, char **ns_name);

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:

apport-collect 1729634

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

[Arvan David Pritchard (arvan-pritchard)]

Cannot run
apport-collect 1729634

This bug is related to building the kernel for an appliance which does not have apport installed, and the build is done on a headless system accessed over ssh.

I tried to run apport-collect there but could not work out how to log into launchpad via the terminal-based web browser.

[Arvan David Pritchard (arvan-pritchard)]

Set status to confirmed as requested in email from Ubuntu Kernel Bot

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.