Drivers: hv: vmbus: Break out synic enable and disable operations

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Break out synic enable and disable operations into separate
hv_synic_disable_regs() and hv_synic_enable_regs() functions for use by a
later patch to support hibernation.

There is no functional change except the unnecessary check
"if (sctrl.enable != 1) return -EFAULT;" which is removed, because when
we're in hv_synic_cleanup(), we're absolutely sure sctrl.enable must be 1.

Signed-off-by: Dexuan Cui <decui@microsoft.com>
Reviewed-by: Michael Kelley <mikelley@microsoft.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Dexuan Cui 2019-09-05 23:01:15 +00:00 • committed by Sasha Levin

parent 345f0254e5

commit dba61cda30

2 changed files with 39 additions and 29 deletions

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66

drivers/hv/hv.c

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2

drivers/hv/hyperv_vmbus.h

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