locking/mutex: Remove repeated declaration

Commit 0cd39f4600ed ("locking/seqlock, headers: Untangle the spaghetti monster")
introduces 'struct ww_acquire_ctx' again, remove the repeated declaration and move
the pre-declarations to the top.

Signed-off-by: Shaokun Zhang <zhangshaokun@hisilicon.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Waiman Long <longman@redhat.com>
Link: https://lore.kernel.org/r/1616564440-61318-1-git-send-email-zhangshaokun@hisilicon.com

diff --git a/include/linux/mutex.h b/include/linux/mutex.h
index 0cd631a19727627243431974f17e7d1ac9d6f747..e7a126796937abce0f103144ccb6cde28b9f9b4a 100644 (file)
--- a/include/linux/mutex.h
+++ b/include/linux/mutex.h
@@ -20,6 +20,7 @@
 #include <linux/osq_lock.h>
 #include <linux/debug_locks.h>
 
+struct ww_class;
 struct ww_acquire_ctx;
 
 /*
@@ -65,9 +66,6 @@ struct mutex {
 #endif
 };
 
-struct ww_class;
-struct ww_acquire_ctx;
-
 struct ww_mutex {
        struct mutex base;
        struct ww_acquire_ctx *ctx;