RE: [PATCH v3] fusion: use pci_dev->revision

[Nandigama, Nagalakshmi]

Patch seems fine. Please consider this patch as Acked-by: "Nandigama, Nagalakshmi" <Nagalakshmi.Nandigama@xxxxxxx>

Regards,
Nagalakshmi


-----Original Message-----
From: Sergei Shtylyov [mailto:sshtylyov@xxxxxxxxxxxxx] 
Sent: Thursday, March 15, 2012 12:50 AM
To: Moore, Eric; akpm@xxxxxxxxxxxxxxxxxxxx
Cc: DL-MPT Fusion Linux; linux-scsi@xxxxxxxxxxxxxxx; Support; linux-kernel@xxxxxxxxxxxxxxx
Subject: [PATCH v3] fusion: use pci_dev->revision

This driver uses PCI_CLASS_REVISION instead of PCI_REVISION_ID, so it wasn't
converted by commit 44c10138fd4bbc4b6d6bff0873c24902f2a9da65 (PCI: Change all
drivers to use pci_device->revision).

In one case, it even reads PCI revision ID without using it -- that code is now
removed...

Signed-off-by: Sergei Shtylyov <sshtylyov@xxxxxxxxxxxxx>

---
This patch is refreshed against the recent Linus' tree.

This patch hasn't been applied to 3.1, 3.2, or 3.3, hopefully it can be applied
to 3.4 at last...

Andrew M., maybe you can take it if the maintainers don't seem to be bothered?

 drivers/message/fusion/mptbase.c |   12 ++++--------
 drivers/message/fusion/mptctl.c  |    4 +---
 2 files changed, 5 insertions(+), 11 deletions(-)

Index: linux-2.6/drivers/message/fusion/mptbase.c
===================================================================
--- linux-2.6.orig/drivers/message/fusion/mptbase.c
+++ linux-2.6/drivers/message/fusion/mptbase.c
@@ -1652,7 +1652,6 @@ mpt_mapresources(MPT_ADAPTER *ioc)
 	unsigned long	 port;
 	u32		 msize;
 	u32		 psize;
-	u8		 revision;
 	int		 r = -ENODEV;
 	struct pci_dev *pdev;
 
@@ -1669,8 +1668,6 @@ mpt_mapresources(MPT_ADAPTER *ioc)
 		return r;
 	}
 
-	pci_read_config_byte(pdev, PCI_CLASS_REVISION, &revision);
-
 	if (sizeof(dma_addr_t) > 4) {
 		const uint64_t required_mask = dma_get_required_mask
 		    (&pdev->dev);
@@ -1778,7 +1775,6 @@ mpt_attach(struct pci_dev *pdev, const s
 	MPT_ADAPTER	*ioc;
 	u8		 cb_idx;
 	int		 r = -ENODEV;
-	u8		 revision;
 	u8		 pcixcmd;
 	static int	 mpt_ids = 0;
 #ifdef CONFIG_PROC_FS
@@ -1886,8 +1882,8 @@ mpt_attach(struct pci_dev *pdev, const s
 	dinitprintk(ioc, printk(MYIOC_s_INFO_FMT "facts @ %p, pfacts[0] @ %p\n",
 	    ioc->name, &ioc->facts, &ioc->pfacts[0]));
 
-	pci_read_config_byte(pdev, PCI_CLASS_REVISION, &revision);
-	mpt_get_product_name(pdev->vendor, pdev->device, revision, ioc->prod_name);
+	mpt_get_product_name(pdev->vendor, pdev->device, pdev->revision,
+			     ioc->prod_name);
 
 	switch (pdev->device)
 	{
@@ -1902,7 +1898,7 @@ mpt_attach(struct pci_dev *pdev, const s
 		break;
 
 	case MPI_MANUFACTPAGE_DEVICEID_FC929X:
-		if (revision < XL_929) {
+		if (pdev->revision < XL_929) {
 			/* 929X Chip Fix. Set Split transactions level
 		 	* for PCIX. Set MOST bits to zero.
 		 	*/
@@ -1933,7 +1929,7 @@ mpt_attach(struct pci_dev *pdev, const s
 		/* 1030 Chip Fix. Disable Split transactions
 		 * for PCIX. Set MOST bits to zero if Rev < C0( = 8).
 		 */
-		if (revision < C0_1030) {
+		if (pdev->revision < C0_1030) {
 			pci_read_config_byte(pdev, 0x6a, &pcixcmd);
 			pcixcmd &= 0x8F;
 			pci_write_config_byte(pdev, 0x6a, pcixcmd);
Index: linux-2.6/drivers/message/fusion/mptctl.c
===================================================================
--- linux-2.6.orig/drivers/message/fusion/mptctl.c
+++ linux-2.6/drivers/message/fusion/mptctl.c
@@ -1250,7 +1250,6 @@ mptctl_getiocinfo (unsigned long arg, un
 	int			iocnum;
 	unsigned int		port;
 	int			cim_rev;
-	u8			revision;
 	struct scsi_device 	*sdev;
 	VirtDevice		*vdevice;
 
@@ -1324,8 +1323,7 @@ mptctl_getiocinfo (unsigned long arg, un
 	pdev = (struct pci_dev *) ioc->pcidev;
 
 	karg->pciId = pdev->device;
-	pci_read_config_byte(pdev, PCI_CLASS_REVISION, &revision);
-	karg->hwRev = revision;
+	karg->hwRev = pdev->revision;
 	karg->subSystemDevice = pdev->subsystem_device;
 	karg->subSystemVendor = pdev->subsystem_vendor;
 
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