Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-11-10 22:21:40 +00:00
Code Issues Packages Projects Releases Wiki Activity

drivers/virt: the Freescale hypervisor driver doesn't need to check MSR[GS]

Browse Source 
The MSR[GS] bit indicates whether the kernel is running in processor guest
state mode, but such a check is unnecessary.  The driver already checks
for the /hypervisor node and the fsl,hv-version property, so it already
knows that it's running under the Freescale hypervisor.

There is nothing in the driver that inherently requires guest state,
anyway.

This fixes a break that can occur in some randconfig builds.

Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
This commit is contained in:
Timur Tabi 2012-05-17 14:10:27 -05:00 committed by Kumar Gala
parent e9c36b0b09
commit 9655aa6b80
1 changed files with 0 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/virt/fsl_hypervisor.c
View File

@ -796,9 +796,6 @@ static int has_fsl_hypervisor(void)
struct device_node *node;
int ret;
if (!(mfmsr() & MSR_GS))
return 0;
node = of_find_node_by_path("/hypervisor");
if (!node)
return 0;