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Subject[PATCH 2/3] drivers/staging/rtl8192e: Don't pass huge struct by value
From: Jesper Juhl <jj@chaosbits.net>
Date: Sat, 13 Aug 2011 00:52:32 +0200

struct ieee80211_network is fairly large (more than half a kilobyte),
so let's pass a pointer instead of passing the entire structure by
value when ieee80211_is_54g() and ieee80211_is_shortslot() need to
look at a few members.
Also remove parentheses around the values being returned from those
two functions - 'return' is not a function.

Signed-off-by: Jesper Juhl <jj@chaosbits.net>
---
drivers/staging/rtl8192e/ieee80211/ieee80211.h | 4 ++--
.../staging/rtl8192e/ieee80211/ieee80211_softmac.c | 14 +++++++-------
2 files changed, 9 insertions(+), 9 deletions(-)
diff --git a/drivers/staging/rtl8192e/ieee80211/ieee80211.h b/drivers/staging/rtl8192e/ieee80211/ieee80211.h
index 6d7963e..abc7a1b 100644
--- a/drivers/staging/rtl8192e/ieee80211/ieee80211.h
+++ b/drivers/staging/rtl8192e/ieee80211/ieee80211.h
@@ -2425,8 +2425,8 @@ int ieee80211_wx_set_mlme(struct ieee80211_device *ieee,
int ieee80211_wx_set_gen_ie(struct ieee80211_device *ieee, u8 *ie, size_t len);

/* ieee80211_softmac.c */
-short ieee80211_is_54g(struct ieee80211_network net);
-short ieee80211_is_shortslot(struct ieee80211_network net);
+short ieee80211_is_54g(const struct ieee80211_network *net);
+short ieee80211_is_shortslot(const struct ieee80211_network *net);
int ieee80211_rx_frame_softmac(struct ieee80211_device *ieee, struct sk_buff *skb,
struct ieee80211_rx_stats *rx_stats, u16 type,
u16 stype);
diff --git a/drivers/staging/rtl8192e/ieee80211/ieee80211_softmac.c b/drivers/staging/rtl8192e/ieee80211/ieee80211_softmac.c
index 60e9a09..4a5e9b2 100644
--- a/drivers/staging/rtl8192e/ieee80211/ieee80211_softmac.c
+++ b/drivers/staging/rtl8192e/ieee80211/ieee80211_softmac.c
@@ -33,14 +33,14 @@ u8 rsn_authen_cipher_suite[16][4] = {
{0x00,0x0F,0xAC,0x05}, //WEP-104
};

-short ieee80211_is_54g(struct ieee80211_network net)
+short ieee80211_is_54g(const struct ieee80211_network *net)
{
- return ((net.rates_ex_len > 0) || (net.rates_len > 4));
+ return (net->rates_ex_len > 0) || (net->rates_len > 4);
}

-short ieee80211_is_shortslot(struct ieee80211_network net)
+short ieee80211_is_shortslot(const struct ieee80211_network *net)
{
- return (net.capability & WLAN_CAPABILITY_SHORT_SLOT);
+ return (net->capability & WLAN_CAPABILITY_SHORT_SLOT);
}

/* returns the total length needed for pleacing the RATE MFIE
@@ -723,7 +723,7 @@ static struct sk_buff* ieee80211_probe_resp(struct ieee80211_device *ieee, u8 *d
else
atim_len = 0;

- if(ieee80211_is_54g(ieee->current_network))
+ if(ieee80211_is_54g(&ieee->current_network))
erp_len = 3;
else
erp_len = 0;
@@ -1351,7 +1351,7 @@ void ieee80211_associate_complete_wq(struct work_struct *work)
struct ieee80211_device *ieee = container_of(work, struct ieee80211_device, associate_complete_wq);
printk(KERN_INFO "Associated successfully\n");
ieee->is_roaming = false;
- if(ieee80211_is_54g(ieee->current_network) &&
+ if(ieee80211_is_54g(&ieee->current_network) &&
(ieee->modulation & IEEE80211_OFDM_MODULATION)){

ieee->rate = 108;
@@ -1504,7 +1504,7 @@ inline void ieee80211_softmac_new_net(struct ieee80211_device *ieee, struct ieee
ieee->state = IEEE80211_ASSOCIATING;
queue_work(ieee->wq, &ieee->associate_procedure_wq);
}else{
- if(ieee80211_is_54g(ieee->current_network) &&
+ if(ieee80211_is_54g(&ieee->current_network) &&
(ieee->modulation & IEEE80211_OFDM_MODULATION)){
ieee->rate = 108;
ieee->SetWirelessMode(ieee, IEEE_G);
--
1.7.6

--
Jesper Juhl <jj@chaosbits.net> http://www.chaosbits.net/
Don't top-post http://www.catb.org/jargon/html/T/top-post.html
Plain text mails only, please.



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