From: Jens Axboe <axboe@fb.com>
Date: Mon, 10 Mar 2014 20:29:37 +0000 (-0600)
Subject: mtip32xx: fix bad use of smp_processor_id()
X-Git-Tag: upstream/snapshot3+hdmi~3279^2
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=7f328908f9cb69a72ce1c9279508c786cf85f1f5;p=platform%2Fadaptation%2Frenesas_rcar%2Frenesas_kernel.git

mtip32xx: fix bad use of smp_processor_id()

mtip_pci_probe() dumps the current CPU when loaded, but it does
so in a preemptible context. Hence smp_processor_id() correctly
warns:

BUG: using smp_processor_id() in preemptible [00000000] code: systemd-udevd/155
caller is mtip_pci_probe+0x53/0x880 [mtip32xx]

Switch to raw_smp_processor_id(), since it's just informational
and persistent accuracy isn't important.

Signed-off-by: Jens Axboe <axboe@fb.com>
---

diff --git a/drivers/block/mtip32xx/mtip32xx.c b/drivers/block/mtip32xx/mtip32xx.c
index 5160269..d777bb7 100644
--- a/drivers/block/mtip32xx/mtip32xx.c
+++ b/drivers/block/mtip32xx/mtip32xx.c
@@ -4498,7 +4498,7 @@ static int mtip_pci_probe(struct pci_dev *pdev,
 	}
 	dev_info(&pdev->dev, "NUMA node %d (closest: %d,%d, probe on %d:%d)\n",
 		my_node, pcibus_to_node(pdev->bus), dev_to_node(&pdev->dev),
-		cpu_to_node(smp_processor_id()), smp_processor_id());
+		cpu_to_node(raw_smp_processor_id()), raw_smp_processor_id());
 
 	dd = kzalloc_node(sizeof(struct driver_data), GFP_KERNEL, my_node);
 	if (dd == NULL) {