libcxgb,iw_cxgb4,cxgbit: add cxgb_compute_wscale()

Add cxgb_compute_wscale() in libcxgb_cm.h to remove
it's duplicate definitions from cxgb4/cm.c and
cxgbit/cxgbit_cm.c.

Signed-off-by: Varun Prakash <varun@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 10 deletions

diff --git a/drivers/target/iscsi/cxgbit/cxgbit_cm.c b/drivers/target/iscsi/cxgbit/cxgbit_cm.c
index b09c09ba9659..cd29c91d01fc 100644
--- a/drivers/target/iscsi/cxgbit/cxgbit_cm.c
+++ b/drivers/target/iscsi/cxgbit/cxgbit_cm.c
@@ -1085,15 +1085,6 @@ out:
         return -ENOMEM;
 }
 
-static u32 cxgbit_compute_wscale(u32 win)
-{
-        u32 wscale = 0;
-
-        while (wscale < 14 && (65535 << wscale) < win)
-                wscale++;
-        return wscale;
-}
-
 static void
 cxgbit_pass_accept_rpl(struct cxgbit_sock *csk, struct cpl_pass_accept_req *req)
 {
@@ -1124,7 +1115,7 @@ cxgbit_pass_accept_rpl(struct cxgbit_sock *csk, struct cpl_pass_accept_req *req)
         cxgb_best_mtu(csk->com.cdev->lldi.mtus, csk->mtu, &mtu_idx,
                       req->tcpopt.tstamp,
                       (csk->com.remote_addr.ss_family == AF_INET) ? 0 : 1);
-        wscale = cxgbit_compute_wscale(csk->rcv_win);
+        wscale = cxgb_compute_wscale(csk->rcv_win);
         /*
          * Specify the largest window that will fit in opt0. The
          * remainder will be specified in the rx_data_ack.