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

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>
Timur Tabi 13 년 전
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1개의 변경된 파일0개의 추가작업 그리고 3개의 파일을 삭제
  1. 0 3
      drivers/virt/fsl_hypervisor.c

+ 0 - 3
drivers/virt/fsl_hypervisor.c

@@ -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;