linux-kernel - [PATCH] locking/static_key: always define static_branch_deferred

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Message-Id: <20190612194409.197461-1-willemdebruijn.kernel@gmail.com>
Date:   Wed, 12 Jun 2019 15:44:09 -0400
From:   Willem de Bruijn <willemdebruijn.kernel@...il.com>
To:     jakub.kicinski@...ronome.com, peterz@...radead.org
Cc:     netdev@...r.kernel.org, davem@...emloft.net,
        linux-kernel@...r.kernel.org, Willem de Bruijn <willemb@...gle.com>
Subject: [PATCH] locking/static_key: always define static_branch_deferred_inc

From: Willem de Bruijn <willemb@...gle.com>

This interface is currently only defined if CONFIG_JUMP_LABEL. Make it
available also when jump labels are disabled.

Fixes: ad282a8117d50 ("locking/static_key: Add support for deferred static branches")
Signed-off-by: Willem de Bruijn <willemb@...gle.com>

---

The original patch went into 5.2-rc1, but this interface is not yet
used, so this could target either 5.2 or 5.3.

---
 include/linux/jump_label_ratelimit.h | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/include/linux/jump_label_ratelimit.h b/include/linux/jump_label_ratelimit.h
index 42710d5949ba..8c3ee291b2d8 100644
--- a/include/linux/jump_label_ratelimit.h
+++ b/include/linux/jump_label_ratelimit.h
@@ -60,8 +60,6 @@ extern void jump_label_update_timeout(struct work_struct *work);
 						   0),			\
 	}
 
-#define static_branch_deferred_inc(x)	static_branch_inc(&(x)->key)
-
 #else	/* !CONFIG_JUMP_LABEL */
 struct static_key_deferred {
 	struct static_key  key;
@@ -95,4 +93,7 @@ jump_label_rate_limit(struct static_key_deferred *key,
 	STATIC_KEY_CHECK_USE(key);
 }
 #endif	/* CONFIG_JUMP_LABEL */
+
+#define static_branch_deferred_inc(x)	static_branch_inc(&(x)->key)
+
 #endif	/* _LINUX_JUMP_LABEL_RATELIMIT_H */
-- 
2.22.0.rc2.383.gf4fbbf30c2-goog