2014-01-08 02:56:59

by Ding Tianhong

Subject: [PATCH v3.6 17/19] mwifiex: slight optimization of addr compare

Use possibly more efficient ether_addr_equal
instead of memcmp.

Cc: Bing Zhao <[email protected]>
Cc: John W. Linville <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Signed-off-by: Weilong Chen <[email protected]>
Signed-off-by: Ding Tianhong <[email protected]>
---
drivers/net/wireless/mwifiex/11n.c | 2 +-
drivers/net/wireless/mwifiex/sta_cmdresp.c | 3 +--
drivers/net/wireless/mwifiex/sta_rx.c | 2 +-
3 files changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/net/wireless/mwifiex/11n.c b/drivers/net/wireless/mwifiex/11n.c
index 0b803c0..6261f8c 100644
--- a/drivers/net/wireless/mwifiex/11n.c
+++ b/drivers/net/wireless/mwifiex/11n.c
@@ -483,7 +483,7 @@ mwifiex_get_ba_tbl(struct mwifiex_private *priv, int tid, u8 *ra)

spin_lock_irqsave(&priv->tx_ba_stream_tbl_lock, flags);
list_for_each_entry(tx_ba_tsr_tbl, &priv->tx_ba_stream_tbl_ptr, list) {
- if (!memcmp(tx_ba_tsr_tbl->ra, ra, ETH_ALEN) &&
+ if (ether_addr_equal_unaligned(tx_ba_tsr_tbl->ra, ra) &&
tx_ba_tsr_tbl->tid == tid) {
spin_unlock_irqrestore(&priv->tx_ba_stream_tbl_lock,
flags);
diff --git a/drivers/net/wireless/mwifiex/sta_cmdresp.c b/drivers/net/wireless/mwifiex/sta_cmdresp.c
index 5511946..24523e4 100644
--- a/drivers/net/wireless/mwifiex/sta_cmdresp.c
+++ b/drivers/net/wireless/mwifiex/sta_cmdresp.c
@@ -782,8 +782,7 @@ static int mwifiex_ret_ibss_coalescing_status(struct mwifiex_private *priv,
}

/* If BSSID is diff, modify current BSS parameters */
- if (memcmp(priv->curr_bss_params.bss_descriptor.mac_address,
- ibss_coal_resp->bssid, ETH_ALEN)) {
+ if (!ether_addr_equal(priv->curr_bss_params.bss_descriptor.mac_address, ibss_coal_resp->bssid)) {
/* BSSID */
memcpy(priv->curr_bss_params.bss_descriptor.mac_address,
ibss_coal_resp->bssid, ETH_ALEN);
diff --git a/drivers/net/wireless/mwifiex/sta_rx.c b/drivers/net/wireless/mwifiex/sta_rx.c
index 0bb510d..4651d67 100644
--- a/drivers/net/wireless/mwifiex/sta_rx.c
+++ b/drivers/net/wireless/mwifiex/sta_rx.c
@@ -224,7 +224,7 @@ int mwifiex_process_sta_rx_packet(struct mwifiex_private *priv,
* directly to os. Don't pass thru rx reordering
*/
if (!IS_11N_ENABLED(priv) ||
- memcmp(priv->curr_addr, rx_pkt_hdr->eth803_hdr.h_dest, ETH_ALEN)) {
+ !ether_addr_equal_unaligned(priv->curr_addr, rx_pkt_hdr->eth803_hdr.h_dest)) {
mwifiex_process_rx_packet(priv, skb);
return ret;
}
--
1.8.0

2014-01-08 03:04:50

by Bing Zhao

Subject: RE: [PATCH v3.6 17/19] mwifiex: slight optimization of addr compare

Hi Ding,

> - if (memcmp(priv->curr_bss_params.bss_descriptor.mac_address,
> - ibss_coal_resp->bssid, ETH_ALEN)) {
> + if (!ether_addr_equal(priv->curr_bss_params.bss_descriptor.mac_address, ibss_coal_resp->bssid))

Still wrong... ;)

Have you actually run the checkpatch.pl script?

By the way, your subject prefix "PATCH v3.6" is confusing. It ought to be "PATCH v6", I guess.

Thanks,
Bing

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