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Commit cf42c4e5 authored by Vladimir Kondratiev's avatar Vladimir Kondratiev Committed by John W. Linville
Browse files

wil6210: optimize wil_release_reorder_frames 



In case of receiving frame with sequence number far greater than current,
wil_release_reorder_frames() will iterate many times over empty buffer.

Optimize this case by checking buffer emptiness and simply update
head_seq_num without iterating.

Suggested-by: default avatarVladimir Shulman <Vladimir.Shulman@Wilocity.com>
Signed-off-by: default avatarVladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 39c52ee8

drivers/net/wireless/ath/wil6210/rx_reorder.c

+8 −1
Original line number Original line Diff line number Diff line
@@ -49,10 +49,17 @@ static void wil_release_reorder_frames(struct wil6210_priv *wil, 
{

{

	int index;

	int index;





	while (seq_less(r->head_seq_num, hseq)) {

	/* note: this function is never called with

	 * hseq preceding r->head_seq_num, i.e it is always true

	 * !seq_less(hseq, r->head_seq_num)

	 * and thus on loop exit it should be

	 * r->head_seq_num == hseq

	 */

	while (seq_less(r->head_seq_num, hseq) && r->stored_mpdu_num) {

		index = reorder_index(r, r->head_seq_num);

		index = reorder_index(r, r->head_seq_num);

		wil_release_reorder_frame(wil, r, index);

		wil_release_reorder_frame(wil, r, index);

	}

	}

	r->head_seq_num = hseq;

}

}





static void wil_reorder_release(struct wil6210_priv *wil,

static void wil_reorder_release(struct wil6210_priv *wil,