From: Sergei Shtylyov <sshtylyov-hkdhdckH98+B+jHODAdFcQ@public.gmane.org>
To: linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Cc: roland-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org,
sean.hefty-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org,
hal.rosenstock-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: [PATCH 2/2] qib: use pci_dev->revision
Date: Sat, 7 May 2011 21:41:56 +0400 [thread overview]
Message-ID: <201105072141.56328.sshtylyov@ru.mvista.com> (raw)
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-hkdhdckH98+B+jHODAdFcQ@public.gmane.org>
---
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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next reply other threads:[~2011-05-07 17:41 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-05-07 17:41 Sergei Shtylyov [this message]
[not found] ` <201105072141.56328.sshtylyov-hkdhdckH98+B+jHODAdFcQ@public.gmane.org>
2011-05-09 19:39 ` [PATCH 2/2] qib: use pci_dev->revision Mike Marciniszyn
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