From 44c10138fd4bbc4b6d6bff0873c24902f2a9da65 Mon Sep 17 00:00:00 2001 From: Auke Kok Date: Fri, 8 Jun 2007 15:46:36 -0700 Subject: PCI: Change all drivers to use pci_device->revision Instead of all drivers reading pci config space to get the revision ID, they can now use the pci_device->revision member. This exposes some issues where drivers where reading a word or a dword for the revision number, and adding useless error-handling around the read. Some drivers even just read it for no purpose of all. In devices where the revision ID is being copied over and used in what appears to be the equivalent of hotpath, I have left the copy code and the cached copy as not to influence the driver's performance. Compile tested with make all{yes,mod}config on x86_64 and i386. Signed-off-by: Auke Kok Acked-by: Dave Jones Signed-off-by: Greg Kroah-Hartman --- drivers/net/cassini.c | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) (limited to 'drivers/net/cassini.c') diff --git a/drivers/net/cassini.c b/drivers/net/cassini.c index 59b9943b077..805924fc077 100644 --- a/drivers/net/cassini.c +++ b/drivers/net/cassini.c @@ -3422,21 +3422,19 @@ done: static void cas_check_pci_invariants(struct cas *cp) { struct pci_dev *pdev = cp->pdev; - u8 rev; cp->cas_flags = 0; - pci_read_config_byte(pdev, PCI_REVISION_ID, &rev); if ((pdev->vendor == PCI_VENDOR_ID_SUN) && (pdev->device == PCI_DEVICE_ID_SUN_CASSINI)) { - if (rev >= CAS_ID_REVPLUS) + if (pdev->revision >= CAS_ID_REVPLUS) cp->cas_flags |= CAS_FLAG_REG_PLUS; - if (rev < CAS_ID_REVPLUS02u) + if (pdev->revision < CAS_ID_REVPLUS02u) cp->cas_flags |= CAS_FLAG_TARGET_ABORT; /* Original Cassini supports HW CSUM, but it's not * enabled by default as it can trigger TX hangs. */ - if (rev < CAS_ID_REV2) + if (pdev->revision < CAS_ID_REV2) cp->cas_flags |= CAS_FLAG_NO_HW_CSUM; } else { /* Only sun has original cassini chips. */ -- cgit v1.2.3-18-g5258