linux-kernel - [tip:irq/core] genirq/affinity: Remove the leftovers of the original set support

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Date:   Mon, 18 Feb 2019 02:28:26 -0800
From:   tip-bot for Thomas Gleixner <tipbot@...or.com>
To:     linux-tip-commits@...r.kernel.org
Cc:     tglx@...utronix.de, keith.busch@...el.com, mingo@...nel.org,
        helgaas@...nel.org, sumit.saxena@...adcom.com,
        shivasharan.srikanteshwara@...adcom.com,
        linux-kernel@...r.kernel.org, kashyap.desai@...adcom.com,
        hch@....de, sagi@...mberg.me, marc.zyngier@....com,
        axboe@...nel.dk, hpa@...or.com, ming.lei@...hat.com
Subject: [tip:irq/core] genirq/affinity: Remove the leftovers of the
 original set support

Commit-ID:  a6a309edba13866b31dc4d8aebad3864a6d56ade
Gitweb:     https://git.kernel.org/tip/a6a309edba13866b31dc4d8aebad3864a6d56ade
Author:     Thomas Gleixner <tglx@...utronix.de>
AuthorDate: Sat, 16 Feb 2019 18:13:11 +0100
Committer:  Thomas Gleixner <tglx@...utronix.de>
CommitDate: Mon, 18 Feb 2019 11:21:29 +0100

genirq/affinity: Remove the leftovers of the original set support

Now that the NVME driver is converted over to the calc_set() callback, the
workarounds of the original set support can be removed.

Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
Reviewed-by: Ming Lei <ming.lei@...hat.com>
Acked-by: Marc Zyngier <marc.zyngier@....com>
Cc: Christoph Hellwig <hch@....de>
Cc: Bjorn Helgaas <helgaas@...nel.org>
Cc: Jens Axboe <axboe@...nel.dk>
Cc: linux-block@...r.kernel.org
Cc: Sagi Grimberg <sagi@...mberg.me>
Cc: linux-nvme@...ts.infradead.org
Cc: linux-pci@...r.kernel.org
Cc: Keith Busch <keith.busch@...el.com>
Cc: Sumit Saxena <sumit.saxena@...adcom.com>
Cc: Kashyap Desai <kashyap.desai@...adcom.com>
Cc: Shivasharan Srikanteshwara <shivasharan.srikanteshwara@...adcom.com>
Link: https://lkml.kernel.org/r/20190216172228.689834224@linutronix.de

---
 kernel/irq/affinity.c | 20 ++++----------------
 1 file changed, 4 insertions(+), 16 deletions(-)

diff --git a/kernel/irq/affinity.c b/kernel/irq/affinity.c
index d737dc60ab52..f18cd5aa33e8 100644
--- a/kernel/irq/affinity.c
+++ b/kernel/irq/affinity.c
@@ -264,20 +264,13 @@ irq_create_affinity_masks(unsigned int nvecs, struct irq_affinity *affd)
 
 	/*
 	 * Simple invocations do not provide a calc_sets() callback. Install
-	 * the generic one. The check for affd->nr_sets is a temporary
-	 * workaround and will be removed after the NVME driver is converted
-	 * over.
+	 * the generic one.
 	 */
-	if (!affd->nr_sets && !affd->calc_sets)
+	if (!affd->calc_sets)
 		affd->calc_sets = default_calc_sets;
 
-	/*
-	 * If the device driver provided a calc_sets() callback let it
-	 * recalculate the number of sets and their size. The check will go
-	 * away once the NVME driver is converted over.
-	 */
-	if (affd->calc_sets)
-		affd->calc_sets(affd, affvecs);
+	/* Recalculate the sets */
+	affd->calc_sets(affd, affvecs);
 
 	if (WARN_ON_ONCE(affd->nr_sets > IRQ_AFFINITY_MAX_SETS))
 		return NULL;
@@ -344,11 +337,6 @@ unsigned int irq_calc_affinity_vectors(unsigned int minvec, unsigned int maxvec,
 
 	if (affd->calc_sets) {
 		set_vecs = maxvec - resv;
-	} else if (affd->nr_sets) {
-		unsigned int i;
-
-		for (i = 0, set_vecs = 0;  i < affd->nr_sets; i++)
-			set_vecs += affd->set_size[i];
 	} else {
 		get_online_cpus();
 		set_vecs = cpumask_weight(cpu_possible_mask);