From: Paul E. McKenney Date: Tue, 31 Jul 2018 16:49:20 +0000 (-0700) Subject: rcu: Convert "1UL << x" to "BIT(x)" X-Git-Tag: v4.20-rc1~172^2^2^2~10 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=df63fa5bc11aadf81126d4a1785080c800e2ece3;p=thirdparty%2Fkernel%2Flinux.git 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 --- diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c index 92346ab8077d4..e778fd5546d11 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 8f053bb1eec8c..5e561f1339d4a 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