From e9d5d4a0c13f47e331e39a4c66a9b3da701b280b Mon Sep 17 00:00:00 2001 From: Julia Lawall Date: Tue, 27 Jun 2017 17:56:50 -0600 Subject: drbd: Drop unnecessary static Drop static on a local variable, when the variable is initialized before any use, on every possible execution path through the function. The static has no benefit, and dropping it reduces the code size. The semantic patch that fixes this problem is as follows: (http://coccinelle.lip6.fr/) // @bad exists@ position p; identifier x; type T; @@ static T x@p; ... x = <+...x...+> @@ identifier x; expression e; type T; position p != bad.p; @@ -static T x@p; ... when != x when strict ?x = e; // The change in code size is indicates by the following output from the size command. before: text data bss dec hex filename 67299 2291 1056 70646 113f6 drivers/block/drbd/drbd_nl.o after: text data bss dec hex filename 67283 2291 1056 70630 113e6 drivers/block/drbd/drbd_nl.o Signed-off-by: Julia Lawall Signed-off-by: Roland Kammerer Signed-off-by: Jens Axboe --- drivers/block/drbd/drbd_nl.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/block/drbd/drbd_nl.c') diff --git a/drivers/block/drbd/drbd_nl.c b/drivers/block/drbd/drbd_nl.c index 02255a0d68b9..ad0fcb43e45c 100644 --- a/drivers/block/drbd/drbd_nl.c +++ b/drivers/block/drbd/drbd_nl.c @@ -2294,7 +2294,7 @@ _check_net_options(struct drbd_connection *connection, struct net_conf *old_net_ static enum drbd_ret_code check_net_options(struct drbd_connection *connection, struct net_conf *new_net_conf) { - static enum drbd_ret_code rv; + enum drbd_ret_code rv; struct drbd_peer_device *peer_device; int i; -- cgit v1.2.3