A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-31 04:01:48 -04:00
Code Issues Projects Releases Packages Wiki Activity

PCI: Handle case when no pci device can provide cache line size hint

Browse source 
Prior to this patch, if pci_read_config_byte(dev, PCI_CACHE_LINE_SIZE, ...)
returns 0 for all dev, pci_cache_line_size ends up set to zero
(instead of pci_dfl_cache_line_size).

This patch ensures the pci_cache_line_size = pci_dfl_cache_line_size
setting in the above scenario.

This happens in case of a kvm-88 guest (where, consequently, the rtl8139
NIC failed to initialize).

Acked-by: Tejun Heo <[email protected]>
Signed-off-by: Csaba Henk <[email protected]>
Signed-off-by: Jesse Barnes <[email protected]>
This commit is contained in:
Csaba Henk 2009-12-15 17:55:25 +05:30 • committed by Jesse Barnes
commit 2820f333e3
1 changed files with 1 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

2
drivers/pci/quirks.c
View file

@ -2629,7 +2629,7 @@ static int __init pci_apply_final_quirks(void)
if (!pci_cache_line_size) {
printk(KERN_DEBUG "PCI: CLS %u bytes, default %u\n",
cls << 2, pci_dfl_cache_line_size << 2);
pci_cache_line_size = cls;
pci_cache_line_size = cls ? cls : pci_dfl_cache_line_size;
}
return 0;