linux-kernel - [PATCH] genirq/affinity: remove unused arg when building aff mask

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Date:   Sun,  2 Jun 2019 20:21:17 +0900
From:   Minwoo Im <minwoo.im.dev@...il.com>
To:     linux-kernel@...r.kernel.org
Cc:     Minwoo Im <minwoo.im@...sung.com>,
        Minwoo Im <minwoo.im.dev@...il.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ming Lei <ming.lei@...hat.com>, linux-block@...r.kernel.org
Subject: [PATCH] genirq/affinity: remove unused arg when building aff mask

When building affinity masks, the struct irq_affinity *affd is not
needed because irq_create_affinity_masks() has already given a cursored
current vector after pre_vectors via "curvec".

This patch removes unused argument for irq_build_affinity_masks() and
__irq_build_affinity_masks().  No functions changes are included.

Cc: Thomas Gleixner <tglx@...utronix.de>
Cc: Ming Lei <ming.lei@...hat.com>
Cc: linux-block@...r.kernel.org
Signed-off-by: Minwoo Im <minwoo.im.dev@...il.com>
---
 kernel/irq/affinity.c | 12 +++++-------
 1 file changed, 5 insertions(+), 7 deletions(-)

diff --git a/kernel/irq/affinity.c b/kernel/irq/affinity.c
index f18cd5aa33e8..4352b08ae48d 100644
--- a/kernel/irq/affinity.c
+++ b/kernel/irq/affinity.c
@@ -94,8 +94,7 @@ static int get_nodes_in_cpumask(cpumask_var_t *node_to_cpumask,
 	return nodes;
 }
 
-static int __irq_build_affinity_masks(const struct irq_affinity *affd,
-				      unsigned int startvec,
+static int __irq_build_affinity_masks(unsigned int startvec,
 				      unsigned int numvecs,
 				      unsigned int firstvec,
 				      cpumask_var_t *node_to_cpumask,
@@ -171,8 +170,7 @@ static int __irq_build_affinity_masks(const struct irq_affinity *affd,
  *	1) spread present CPU on these vectors
  *	2) spread other possible CPUs on these vectors
  */
-static int irq_build_affinity_masks(const struct irq_affinity *affd,
-				    unsigned int startvec, unsigned int numvecs,
+static int irq_build_affinity_masks(unsigned int startvec, unsigned int numvecs,
 				    unsigned int firstvec,
 				    struct irq_affinity_desc *masks)
 {
@@ -197,7 +195,7 @@ static int irq_build_affinity_masks(const struct irq_affinity *affd,
 	build_node_to_cpumask(node_to_cpumask);
 
 	/* Spread on present CPUs starting from affd->pre_vectors */
-	nr_present = __irq_build_affinity_masks(affd, curvec, numvecs,
+	nr_present = __irq_build_affinity_masks(curvec, numvecs,
 						firstvec, node_to_cpumask,
 						cpu_present_mask, nmsk, masks);
 
@@ -212,7 +210,7 @@ static int irq_build_affinity_masks(const struct irq_affinity *affd,
 	else
 		curvec = firstvec + nr_present;
 	cpumask_andnot(npresmsk, cpu_possible_mask, cpu_present_mask);
-	nr_others = __irq_build_affinity_masks(affd, curvec, numvecs,
+	nr_others = __irq_build_affinity_masks(curvec, numvecs,
 					       firstvec, node_to_cpumask,
 					       npresmsk, nmsk, masks);
 	put_online_cpus();
@@ -295,7 +293,7 @@ irq_create_affinity_masks(unsigned int nvecs, struct irq_affinity *affd)
 		unsigned int this_vecs = affd->set_size[i];
 		int ret;
 
-		ret = irq_build_affinity_masks(affd, curvec, this_vecs,
+		ret = irq_build_affinity_masks(curvec, this_vecs,
 					       curvec, masks);
 		if (ret) {
 			kfree(masks);
-- 
2.21.0