linux-kernel - [PATCH 2/2] qib: use pci

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Message-Id: <201105072141.56328.sshtylyov@ru.mvista.com>
Date:	Sat, 7 May 2011 21:41:56 +0400
From:	Sergei Shtylyov <sshtylyov@...mvista.com>
To:	linux-rdma@...r.kernel.org
Cc:	roland@...nel.org, sean.hefty@...el.com, hal.rosenstock@...il.com,
	linux-kernel@...r.kernel.org
Subject: [PATCH 2/2] qib: use pci_dev->revision

The driver reads PCI revision ID from the PCI configuration register while it's
already stored by PCI subsystem in the 'revision' field of 'struct pci_dev'...

Signed-off-by: Sergei Shtylyov <sshtylyov@...mvista.com>

---
The patch is against the recent Linus' tree.

 drivers/infiniband/hw/qib/qib_pcie.c |    5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

Index: linux-2.6/drivers/infiniband/hw/qib/qib_pcie.c
===================================================================
--- linux-2.6.orig/drivers/infiniband/hw/qib/qib_pcie.c
+++ linux-2.6/drivers/infiniband/hw/qib/qib_pcie.c
@@ -526,11 +526,8 @@ static int qib_tune_pcie_coalesce(struct
 	 */
 	devid = parent->device;
 	if (devid >= 0x25e2 && devid <= 0x25fa) {
-		u8 rev;
-
 		/* 5000 P/V/X/Z */
-		pci_read_config_byte(parent, PCI_REVISION_ID, &rev);
-		if (rev <= 0xb2)
+		if (parent->revision <= 0xb2)
 			bits = 1U << 10;
 		else
 			bits = 7U << 10;
--
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