net: ipa: don't have gsi_channel_update() return a value

If it finds no completed transactions, gsi_channel_trans_complete()
calls gsi_channel_update() to check hardware.  If new transactions
have completed, gsi_channel_update() records that, then calls
gsi_channel_trans_complete() to return the first of those found.
This recursion won't go any further, but can be avoided if we
have gsi_channel_update() only be responsible for updating state
after accessing hardware.

Change gsi_channel_update() so it simply checks for and handles
new completions, without returning a value.  If it needs to call
that function, have gsi_channel_trans_complete() determine whether
there are new transactions available after the update.

Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 3 insertions, 3 deletions

diff --git a/drivers/net/ipa/gsi_private.h b/drivers/net/ipa/gsi_private.h
index a937811bb1bb..af4cc13864e2 100644
--- a/drivers/net/ipa/gsi_private.h
+++ b/drivers/net/ipa/gsi_private.h
@@ -95,12 +95,12 @@ void gsi_channel_trans_exit(struct gsi_channel *channel);
 void gsi_channel_doorbell(struct gsi_channel *channel);
 
 /* gsi_channel_update() - Update knowledge of channel hardware state
- * @channel:	Channel whose doorbell should be rung
+ * @channel:	Channel to be updated
  *
  * Consult hardware, move any newly completed transactions to a
- * channel's completed list
+ * channel's completed list.
  */
-struct gsi_trans *gsi_channel_update(struct gsi_channel *channel);
+void gsi_channel_update(struct gsi_channel *channel);
 
 /**
  * gsi_ring_virt() - Return virtual address for a ring entry