This is a note to let you know that I've just added the patch titled
Subject: PCI: increment pos before looking for the next cap in __pci_find_next_ht_cap
to my gregkh-2.6 tree. Its filename is
pci-increment-pos-before-looking-for-the-next-cap-in-__pci_find_next_ht_cap.patch
This tree can be found at
http://www.kernel.org/pub/linux/kernel/people/gregkh/gregkh-2.6/patches/
>From [email protected] Fri Jan 5 15:01:21 2007
From: Brice Goglin <[email protected]>
Date: Fri, 05 Jan 2007 23:52:14 +0100
Subject: PCI: increment pos before looking for the next cap in __pci_find_next_ht_cap
To: Greg KH <[email protected]>, Michael Ellerman <[email protected]>
Cc: LKML <[email protected]>
Message-ID: <[email protected]>
While testing 2.6.20-rc3 on a machine with some CK804 chipsets, we
noticed that quirk_nvidia_ck804_msi_ht_cap() was not detecting HT
MSI capabilities anymore. It is actually caused by the MSI mapping
on the root chipset being the 2nd HT capability in the chain.
pci_find_ht_capability() does not seem to find anything but the
first HT cap correctly, because it forgets to increment the position
before looking for the next cap. The following patch seems to fix it.
At least, this prooves that having a ttl is good idea since the
machine would have been stucked in an infinite loop if we didn't
have a ttl :)
Signed-off-by: Brice Goglin <[email protected]>
Signed-off-by: Andrew J. Gallatin <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/pci/pci.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- gregkh-2.6.orig/drivers/pci/pci.c
+++ gregkh-2.6/drivers/pci/pci.c
@@ -254,7 +254,8 @@ static int __pci_find_next_ht_cap(struct
if ((cap & mask) == ht_cap)
return pos;
- pos = __pci_find_next_cap_ttl(dev->bus, dev->devfn, pos,
+ pos = __pci_find_next_cap_ttl(dev->bus, dev->devfn,
+ pos + PCI_CAP_LIST_NEXT,
PCI_CAP_ID_HT, &ttl);
}
Patches currently in gregkh-2.6 which might be from [email protected] are
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
