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libcxgb,iw_cxgb4,cxgbit: add cxgb_compute_wscale()

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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 <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
Varun Prakash 2016-09-13 21:24:01 +05:30 • committed by David S. Miller
commit cc516700c7
4 changed files with 16 additions and 25 deletions
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11
drivers/target/iscsi/cxgbit/cxgbit_cm.c
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@ -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.