livepatch: samples: add sample live patching module

Add a sample live patching module.

Signed-off-by: Seth Jennings <sjenning@redhat.com>
Reviewed-by: Miroslav Benes <mbenes@suse.cz>
Reviewed-by: Petr Mladek <pmladek@suse.cz>
Reviewed-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

diff --git a/MAINTAINERS b/MAINTAINERS
index df6a078..afe93ea 100644 (file)
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -5795,6 +5795,7 @@ F:        include/linux/livepatch.h
 F:     arch/x86/include/asm/livepatch.h
 F:     arch/x86/kernel/livepatch.c
 F:     Documentation/ABI/testing/sysfs-kernel-livepatch
+F:     samples/livepatch/
 L:     live-patching@vger.kernel.org
 
 LLC (802.2)

diff --git a/samples/Kconfig b/samples/Kconfig
index 6181c2c..0aed20d 100644 (file)
--- a/samples/Kconfig
+++ b/samples/Kconfig
@@ -63,4 +63,11 @@ config SAMPLE_RPMSG_CLIENT
          to communicate with an AMP-configured remote processor over
          the rpmsg bus.
 
+config SAMPLE_LIVE_PATCHING
+       tristate "Build live patching sample -- loadable modules only"
+       depends on LIVE_PATCHING && m
+       help
+         Builds a sample live patch that replaces the procfs handler
+         for /proc/cmdline to print "this has been live patched".
+
 endif # SAMPLES

diff --git a/samples/Makefile b/samples/Makefile
index 1a60c62..f00257b 100644 (file)
--- a/samples/Makefile
+++ b/samples/Makefile
@@ -1,4 +1,4 @@
 # Makefile for Linux samples code
 
-obj-$(CONFIG_SAMPLES)  += kobject/ kprobes/ trace_events/ \
+obj-$(CONFIG_SAMPLES)  += kobject/ kprobes/ trace_events/ livepatch/ \
                           hw_breakpoint/ kfifo/ kdb/ hidraw/ rpmsg/ seccomp/

diff --cc samples/livepatch/Makefile
Simple merge

diff --cc samples/livepatch/livepatch-sample.c
Simple merge