linux-kernel - [PATCH AUTOSEL 5.4 173/350] RDMA/qedr: Fix srqs xarray initialization

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Date:   Tue, 10 Dec 2019 16:04:38 -0500
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Michal Kalderon <michal.kalderon@...vell.com>,
        Ariel Elior <ariel.elior@...vell.com>,
        Jason Gunthorpe <jgg@...lanox.com>,
        Sasha Levin <sashal@...nel.org>, linux-rdma@...r.kernel.org
Subject: [PATCH AUTOSEL 5.4 173/350] RDMA/qedr: Fix srqs xarray initialization

From: Michal Kalderon <michal.kalderon@...vell.com>

[ Upstream commit 73ab512f720298aabe23b34110e3f6a8545b0ba5 ]

There was a missing initialization for the srqs xarray.
SRQs xarray can also be called from irq context when searching
for an element and uses the xa_XXX_irq apis, therefore should
be initialized with IRQ flags.

Fixes: 9fd15987ed27 ("qedr: Convert srqidr to XArray")
Link: https://lore.kernel.org/r/20191027200451.28187-2-michal.kalderon@marvell.com
Signed-off-by: Ariel Elior <ariel.elior@...vell.com>
Signed-off-by: Michal Kalderon <michal.kalderon@...vell.com>
Signed-off-by: Jason Gunthorpe <jgg@...lanox.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/infiniband/hw/qedr/main.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/infiniband/hw/qedr/main.c b/drivers/infiniband/hw/qedr/main.c
index dc71b6e16a07f..b462eaca1ee3c 100644
--- a/drivers/infiniband/hw/qedr/main.c
+++ b/drivers/infiniband/hw/qedr/main.c
@@ -357,6 +357,7 @@ static int qedr_alloc_resources(struct qedr_dev *dev)
 		return -ENOMEM;
 
 	spin_lock_init(&dev->sgid_lock);
+	xa_init_flags(&dev->srqs, XA_FLAGS_LOCK_IRQ);
 
 	if (IS_IWARP(dev)) {
 		xa_init_flags(&dev->qps, XA_FLAGS_LOCK_IRQ);
-- 
2.20.1