wl1271: Allocate TX descriptors more efficiently
On each TX descriptor allocation, a free entry is found by traversing the TX
descriptors array.
Improve this by holding a bitmap of all TX descriptors, and using efficient
bit operations to search for free entries.
Signed-off-by: Ido Yariv <ido@wizery.com>
Reviewed-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
diff --git a/drivers/net/wireless/wl12xx/wl1271_main.c b/drivers/net/wireless/wl12xx/wl1271_main.c
index 18aff22..0fd4725 100644
--- a/drivers/net/wireless/wl12xx/wl1271_main.c
+++ b/drivers/net/wireless/wl12xx/wl1271_main.c
@@ -2532,6 +2532,7 @@
wl->sg_enabled = true;
wl->hw_pg_ver = -1;
+ memset(wl->tx_frames_map, 0, sizeof(wl->tx_frames_map));
for (i = 0; i < ACX_TX_DESCRIPTORS; i++)
wl->tx_frames[i] = NULL;