Commit-ID: df63fa5bc11aadf81126d4a1785080c800e2ece3
Gitweb: https://git.kernel.org/tip/df63fa5bc11aadf81126d4a1785080c800e2ece3
Author: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
AuthorDate: Tue, 31 Jul 2018 09:49:20 -0700
Committer: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
CommitDate: Thu, 30 Aug 2018 16:03:46 -0700
rcu: Convert "1UL << x" to "BIT(x)"
This commit saves a few characters by converting "1UL << x" to "BIT(x)".
Signed-off-by: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
---
kernel/rcu/tree.c | 2 +-
kernel/rcu/tree.h | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index 92346ab8077d..e778fd5546d1 100644
--- a/kernel/rcu/tree.c
+++ b/kernel/rcu/tree.c
@@ -3582,7 +3582,7 @@ static void __init rcu_init_one(void)
rnp->parent = NULL;
} else {
rnp->grpnum = j % levelspread[i - 1];
- rnp->grpmask = 1UL << rnp->grpnum;
+ rnp->grpmask = BIT(rnp->grpnum);
rnp->parent = rcu_state.level[i - 1] +
j / levelspread[i - 1];
}
diff --git a/kernel/rcu/tree.h b/kernel/rcu/tree.h
index 8f053bb1eec8..5e561f1339d4 100644
--- a/kernel/rcu/tree.h
+++ b/kernel/rcu/tree.h
@@ -168,7 +168,7 @@ struct rcu_node {
* are indexed relative to this interval rather than the global CPU ID space.
* This generates the bit for a CPU in node-local masks.
*/
-#define leaf_node_cpu_bit(rnp, cpu) (1UL << ((cpu) - (rnp)->grplo))
+#define leaf_node_cpu_bit(rnp, cpu) (BIT((cpu) - (rnp)->grplo))
/*
* Union to allow "aggregate OR" operation on the need for a quiescent
|