[PATCH RFD] selftests: create test-specific kconfig fragments

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From: Bamvor Jian Zhang <hidden>
Date: 2015-11-14 04:57:13
Subsystem: kernel selftest framework, memory hot(un)plug, networking [general], secure computing, the rest, tracing, zram compressed ram block device drvier · Maintainers: Shuah Khan, Shuah Khan, David Hildenbrand, Oscar Salvador, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Kees Cook, Linus Torvalds, Steven Rostedt, Masami Hiramatsu, Minchan Kim, Sergey Senozhatsky

There is a discussion about improving the usability of kselftest by
creating test-specific kconfig in recent kernel Summit. Furthormore,
there are different approaches to do it:

1) keep test-specific kconfig fragments inside each selftest so that
merge_configs.sh could build up a kernel that can test the specific
or all feature(s).

2) In the main menu, have an additional option/flag for each feature
that should be enabled when ksefltests are wanted.  Similar to the
CONFIG_COMPILE_TEST flag.

This patch try to do option 1. Hope it is a good start for
discussion. User could use these configs with merge_config.sh script:

Enable config for specific testcases:
(export ARCH=xxx #for cross compiling)
./scripts/kconfig/merge_config.sh .config \
		tools/testing/selftests/xxx/config

Enable configs for all testcases:
(export ARCH=xxx #for cross compiling)
./scripts/kconfig/merge_config.sh .config \
		tools/testing/selftests/*/config

Signed-off-by: Bamvor Jian Zhang <redacted>
---
 tools/testing/selftests/cpu-hotplug/config    | 2 ++
 tools/testing/selftests/firmware/config       | 1 +
 tools/testing/selftests/ftrace/config         | 1 +
 tools/testing/selftests/ipc/config            | 2 ++
 tools/testing/selftests/memory-hotplug/config | 4 ++++
 tools/testing/selftests/mount/config          | 2 ++
 tools/testing/selftests/net/config            | 3 +++
 tools/testing/selftests/pstore/config         | 4 ++++
 tools/testing/selftests/seccomp/config        | 2 ++
 tools/testing/selftests/static_keys/config    | 1 +
 tools/testing/selftests/user/config           | 1 +
 tools/testing/selftests/vm/config             | 1 +
 tools/testing/selftests/zram/config           | 2 ++
 13 files changed, 26 insertions(+)
 create mode 100644 tools/testing/selftests/cpu-hotplug/config
 create mode 100644 tools/testing/selftests/firmware/config
 create mode 100644 tools/testing/selftests/ftrace/config
 create mode 100644 tools/testing/selftests/ipc/config
 create mode 100644 tools/testing/selftests/memory-hotplug/config
 create mode 100644 tools/testing/selftests/mount/config
 create mode 100644 tools/testing/selftests/net/config
 create mode 100644 tools/testing/selftests/pstore/config
 create mode 100644 tools/testing/selftests/seccomp/config
 create mode 100644 tools/testing/selftests/static_keys/config
 create mode 100644 tools/testing/selftests/user/config
 create mode 100644 tools/testing/selftests/vm/config
 create mode 100644 tools/testing/selftests/zram/config
diff --git a/tools/testing/selftests/cpu-hotplug/config b/tools/testing/selftests/cpu-hotplug/config
new file mode 100644
index 0000000..e6ab090
--- /dev/null
+++ b/tools/testing/selftests/cpu-hotplug/config
@@ -0,0 +1,2 @@
+CONFIG_NOTIFIER_ERROR_INJECTION=y
+CONFIG_CPU_NOTIFIER_ERROR_INJECT=m
diff --git a/tools/testing/selftests/firmware/config b/tools/testing/selftests/firmware/config
new file mode 100644
index 0000000..c8137f7
--- /dev/null
+++ b/tools/testing/selftests/firmware/config
@@ -0,0 +1 @@
+CONFIG_TEST_FIRMWARE=y
diff --git a/tools/testing/selftests/ftrace/config b/tools/testing/selftests/ftrace/config
new file mode 100644
index 0000000..ef82146
--- /dev/null
+++ b/tools/testing/selftests/ftrace/config
@@ -0,0 +1 @@
+CONFIG_FTRACE=y
diff --git a/tools/testing/selftests/ipc/config b/tools/testing/selftests/ipc/config
new file mode 100644
index 0000000..0702447
--- /dev/null
+++ b/tools/testing/selftests/ipc/config
@@ -0,0 +1,2 @@
+CONFIG_EXPERT=y
+CONFIG_CHECKPOINT_RESTORE=y
diff --git a/tools/testing/selftests/memory-hotplug/config b/tools/testing/selftests/memory-hotplug/config
new file mode 100644
index 0000000..2fde301
--- /dev/null
+++ b/tools/testing/selftests/memory-hotplug/config
@@ -0,0 +1,4 @@
+CONFIG_MEMORY_HOTPLUG=y
+CONFIG_MEMORY_HOTPLUG_SPARSE=y
+CONFIG_NOTIFIER_ERROR_INJECTION=y
+CONFIG_MEMORY_NOTIFIER_ERROR_INJECT=m
diff --git a/tools/testing/selftests/mount/config b/tools/testing/selftests/mount/config
new file mode 100644
index 0000000..b5d881e
--- /dev/null
+++ b/tools/testing/selftests/mount/config
@@ -0,0 +1,2 @@
+CONFIG_USER_NS=y
+CONFIG_DEVPTS_MULTIPLE_INSTANCES=y
diff --git a/tools/testing/selftests/net/config b/tools/testing/selftests/net/config
new file mode 100644
index 0000000..e57b4ac
--- /dev/null
+++ b/tools/testing/selftests/net/config
@@ -0,0 +1,3 @@
+CONFIG_USER_NS=y
+CONFIG_BPF_SYSCALL=y
+CONFIG_TEST_BPF=m
diff --git a/tools/testing/selftests/pstore/config b/tools/testing/selftests/pstore/config
new file mode 100644
index 0000000..6a8e5a9
--- /dev/null
+++ b/tools/testing/selftests/pstore/config
@@ -0,0 +1,4 @@
+CONFIG_MISC_FILESYSTEMS=y
+CONFIG_PSTORE=y
+CONFIG_PSTORE_PMSG=y
+CONFIG_PSTORE_CONSOLE=y
diff --git a/tools/testing/selftests/seccomp/config b/tools/testing/selftests/seccomp/config
new file mode 100644
index 0000000..db1e11b
--- /dev/null
+++ b/tools/testing/selftests/seccomp/config
@@ -0,0 +1,2 @@
+CONFIG_SECCOMP=y
+CONFIG_SECCOMP_FILTER=y
diff --git a/tools/testing/selftests/static_keys/config b/tools/testing/selftests/static_keys/config
new file mode 100644
index 0000000..d538fb7
--- /dev/null
+++ b/tools/testing/selftests/static_keys/config
@@ -0,0 +1 @@
+CONFIG_TEST_STATIC_KEYS=m
diff --git a/tools/testing/selftests/user/config b/tools/testing/selftests/user/config
new file mode 100644
index 0000000..784ed84
--- /dev/null
+++ b/tools/testing/selftests/user/config
@@ -0,0 +1 @@
+CONFIG_TEST_USER_COPY=m
diff --git a/tools/testing/selftests/vm/config b/tools/testing/selftests/vm/config
new file mode 100644
index 0000000..698c7ed
--- /dev/null
+++ b/tools/testing/selftests/vm/config
@@ -0,0 +1 @@
+CONFIG_USERFAULTFD=y
diff --git a/tools/testing/selftests/zram/config b/tools/testing/selftests/zram/config
new file mode 100644
index 0000000..e0cc47e
--- /dev/null
+++ b/tools/testing/selftests/zram/config
@@ -0,0 +1,2 @@
+CONFIG_ZSMALLOC=y
+CONFIG_ZRAM=m
-- 
2.1.4
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