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From:   kys@linuxonhyperv.comi
To:     gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org,
        devel@linuxdriverproject.org, olaf@aepfle.de, apw@canonical.com,
        vkuznets@redhat.com, jasowang@redhat.com,
        leann.ogasawara@canonical.com, marcelo.cerri@canonical.com,
        sthemmin@microsoft.com
Cc:     Dexuan Cui <decui@microsoft.com>, stable@vger.kernel.org,
        "K . Y . Srinivasan" <kys@microsoft.com>
Subject: [PATCH 2/4] Drivers: hv: vmbus: do not mark HV_PCIE as perf_device
Date:   Tue, 27 Mar 2018 15:01:02 -0700
Message-Id: <20180327220104.19700-2-kys@linuxonhyperv.comi>
In-Reply-To: <20180327220104.19700-1-kys@linuxonhyperv.comi>
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 <20180327220104.19700-1-kys@linuxonhyperv.comi>
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From: Dexuan Cui <decui@microsoft.com>

The pci-hyperv driver's channel callback hv_pci_onchannelcallback() is not
really a hot path, so we don't need to mark it as a perf_device, meaning
with this patch all HV_PCIE channels' target_cpu will be CPU0.

Signed-off-by: Dexuan Cui <decui@microsoft.com>
Cc: stable@vger.kernel.org
Cc: Stephen Hemminger <sthemmin@microsoft.com>
Cc: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
---
 drivers/hv/channel_mgmt.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/hv/channel_mgmt.c b/drivers/hv/channel_mgmt.c
index c6d9d19bc04e..ecc2bd275a73 100644
--- a/drivers/hv/channel_mgmt.c
+++ b/drivers/hv/channel_mgmt.c
@@ -71,7 +71,7 @@ static const struct vmbus_device vmbus_devs[] = {
 	/* PCIE */
 	{ .dev_type = HV_PCIE,
 	  HV_PCIE_GUID,
-	  .perf_device = true,
+	  .perf_device = false,
 	},
 
 	/* Synthetic Frame Buffer */
-- 
2.15.1