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Drivers: hv: vmbus: Remove unused code to check for subchannels

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The last caller of vmbus_are_subchannels_present() was removed in commit
c967590457 ("scsi: storvsc: Fix a race in sub-channel creation that can cause panic").

Remove this dead code, and the utility function invoke_sc_cb() that it is
the only caller of.

Signed-off-by: Michael Kelley <mikelley@microsoft.com>
Link: https://lore.kernel.org/r/1635191674-34407-1-git-send-email-mikelley@microsoft.com
Signed-off-by: Wei Liu <wei.liu@kernel.org>
This commit is contained in:
Michael Kelley
2021-10-25 12:54:34 -07:00
committed by Wei Liu
parent 9a8797722e
commit 20cf6616cc
2 changed files with 0 additions and 47 deletions
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13
include/linux/hyperv.h
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@@ -1106,19 +1106,6 @@ void vmbus_set_sc_create_callback(struct vmbus_channel *primary_channel,
void vmbus_set_chn_rescind_callback(struct vmbus_channel *channel,
void (*chn_rescind_cb)(struct vmbus_channel *));
/*
* Check if sub-channels have already been offerred. This API will be useful
* when the driver is unloaded after establishing sub-channels. In this case,
* when the driver is re-loaded, the driver would have to check if the
* subchannels have already been established before attempting to request
* the creation of sub-channels.
* This function returns TRUE to indicate that subchannels have already been
* created.
* This function should be invoked after setting the callback function for
* sub-channel creation.
*/
bool vmbus_are_subchannels_present(struct vmbus_channel *primary);
/* The format must be the same as struct vmdata_gpa_direct */
struct vmbus_channel_packet_page_buffer {
u16 type;