[Cocci] [PATCH v3 5/8] scripts: add Linux .cocciconfig for coccinelle

[mcgrof@kernel.org (Luis R. Rodriguez)]

Help Coccinelle when used against Linux with a set of sensible defaults
options for Linux. This hints to coccinelle git can be used for 'git grep'
queries over coccigrep. A timeout of 200 seconds should suffice for now.

If you use idutils you can override for 'make coccicheck' by using the
SPFLAGS option as follows:

First build the index, for example:
mkid -s

Pick the cocci file you wnat to work with:
export COCCI=scripts/coccinelle/misc/irqf_oneshot.cocci

Then run coccicheck:
$ make coccicheck V=1 MODE=report SPFLAGS="--use-idutils ID"

Coccinelle supports reading .cocciconfig from different directories,
the later one overriding the previous reads in the following order:

 o Your current user's home directory is processed first
 o Your directory from which spatch is called is processed next
 o The directory provided with the --dir option is processed last, if used

Signed-off-by: Luis R. Rodriguez <mcgrof@kernel.org>
---
 .cocciconfig | 3 +++
 .gitignore   | 1 +
 2 files changed, 4 insertions(+)
 create mode 100644 .cocciconfig

diff --git a/.cocciconfig b/.cocciconfig
new file mode 100644
index 000000000000..43967c6b2015
--- /dev/null
+++ b/.cocciconfig
@@ -0,0 +1,3 @@
+[spatch]
+	options = --timeout 200
+	options = --use-gitgrep
diff --git a/.gitignore b/.gitignore
index 2be25f771bd8..c2ed4ecb0acd 100644
--- a/.gitignore
+++ b/.gitignore
@@ -67,6 +67,7 @@ Module.symvers
 #
 !.gitignore
 !.mailmap
+!.cocciconfig
 
 #
 # Generated include files
-- 
2.8.2