Commit ed56ef67 authored by Dexuan Cui's avatar Dexuan Cui Committed by Sasha Levin
Browse files

Drivers: hv: vmbus: Add a helper function is_sub_channel() 



The existing method of telling if a channel is sub-channel in
vmbus_process_offer() is cumbersome. This new simple helper function
is preferred in future.

Signed-off-by: default avatarDexuan Cui <decui@microsoft.com>
Reviewed-by: default avatarMichael Kelley <mikelley@microsoft.com>
Signed-off-by: default avatarSasha Levin <sashal@kernel.org>
parent 63ecc6d2

include/linux/hyperv.h

+9 −1
Original line number Diff line number Diff line
@@ -245,7 +245,10 @@ struct vmbus_channel_offer { 
		} pipe;

	} u;

	/*

	 * The sub_channel_index is defined in win8.

	 * The sub_channel_index is defined in Win8: a value of zero means a

	 * primary channel and a value of non-zero means a sub-channel.

	 *

	 * Before Win8, the field is reserved, meaning it's always zero.

	 */

	u16 sub_channel_index;

	u16 reserved3;
@@ -934,6 +937,11 @@ static inline bool is_hvsock_channel(const struct vmbus_channel *c) 
		  VMBUS_CHANNEL_TLNPI_PROVIDER_OFFER);

}



static inline bool is_sub_channel(const struct vmbus_channel *c)

{

	return c->offermsg.offer.sub_channel_index != 0;

}



static inline void set_channel_affinity_state(struct vmbus_channel *c,

					      enum hv_numa_policy policy)

{