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

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Message-ID: <35AAF1E4A771E142979F27B51793A4888838BCBDB9@AVEXMB1.qlogic.org>
Date:	Mon, 9 May 2011 12:39:56 -0700
From:	Mike Marciniszyn <mike.marciniszyn@...gic.com>
To:	Sergei Shtylyov <sshtylyov@...mvista.com>,
	"linux-rdma@...r.kernel.org" <linux-rdma@...r.kernel.org>
CC:	"roland@...nel.org" <roland@...nel.org>,
	"sean.hefty@...el.com" <sean.hefty@...el.com>,
	"hal.rosenstock@...il.com" <hal.rosenstock@...il.com>,
	linux-kernel <linux-kernel@...r.kernel.org>
Subject: RE: [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'...

Thanks for the patch.

qib: use pci_dev->revision

Acked-by: Mike Marciniszyn <mike.marciniszyn@...gic.com>


-----Original Message-----
From: linux-rdma-owner@...r.kernel.org [mailto:linux-rdma-owner@...r.kernel.org] On Behalf Of Sergei Shtylyov
Sent: Saturday, May 07, 2011 1:42 PM
To: linux-rdma@...r.kernel.org
Cc: roland@...nel.org; sean.hefty@...el.com; hal.rosenstock@...il.com; linux-kernel
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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