staging: rtl8192ee: Pass large struct by const reference

struct rtl_stats is rather huge (152 bytes), and since
rtl92ee_rx_command_packet() does not modify it, it might as
well be passed by const reference.

Reported by Coverity: CID 1222131

Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/rtl8192ee/pci.c b/drivers/staging/rtl8192ee/pci.c
index 3fe9b7b..f3abbcc 100644 (file)
--- a/drivers/staging/rtl8192ee/pci.c
+++ b/drivers/staging/rtl8192ee/pci.c
@@ -892,7 +892,7 @@ static void _rtl_pci_rx_interrupt(struct ieee80211_hw *hw)
                }
 
                /* handle command packet here */
-               if (rtlpriv->cfg->ops->rx_command_packet(hw, stats, skb)) {
+               if (rtlpriv->cfg->ops->rx_command_packet(hw, &stats, skb)) {
                                dev_kfree_skb_any(skb);
                                goto end;
                }

diff --git a/drivers/staging/rtl8192ee/rtl8192ee/trx.c b/drivers/staging/rtl8192ee/rtl8192ee/trx.c
index c930f52..1190c8b 100644 (file)
--- a/drivers/staging/rtl8192ee/rtl8192ee/trx.c
+++ b/drivers/staging/rtl8192ee/rtl8192ee/trx.c
@@ -1263,13 +1263,13 @@ bool rtl92ee_is_tx_desc_closed(struct ieee80211_hw *hw, u8 hw_queue, u16 index)
 }
 
 u32 rtl92ee_rx_command_packet(struct ieee80211_hw *hw,
-                             struct rtl_stats status,
+                             const struct rtl_stats *status,
                              struct sk_buff *skb)
 {
        u32 result = 0;
        struct rtl_priv *rtlpriv = rtl_priv(hw);
 
-       switch (status.packet_report_type) {
+       switch (status->packet_report_type) {
        case NORMAL_RX:
                result = 0;
                break;

diff --git a/drivers/staging/rtl8192ee/rtl8192ee/trx.h b/drivers/staging/rtl8192ee/rtl8192ee/trx.h
index c2cd581..e04ee7e 100644 (file)
--- a/drivers/staging/rtl8192ee/rtl8192ee/trx.h
+++ b/drivers/staging/rtl8192ee/rtl8192ee/trx.h
@@ -872,6 +872,6 @@ void rtl92ee_tx_fill_cmddesc(struct ieee80211_hw *hw, u8 *pdesc,
                             bool b_firstseg, bool b_lastseg,
                             struct sk_buff *skb);
 u32 rtl92ee_rx_command_packet(struct ieee80211_hw *hw,
-                             struct rtl_stats status,
+                             const struct rtl_stats *status,
                              struct sk_buff *skb);
 #endif

diff --git a/drivers/staging/rtl8192ee/wifi.h b/drivers/staging/rtl8192ee/wifi.h
index 96fa261..a37176a 100644 (file)
--- a/drivers/staging/rtl8192ee/wifi.h
+++ b/drivers/staging/rtl8192ee/wifi.h
@@ -1946,7 +1946,7 @@ struct rtl_hal_ops {
                             u32 cmd_len, u8 *p_cmdbuffer);
        bool (*get_btc_status)(void);
        u32 (*rx_command_packet)(struct ieee80211_hw *hw,
-                                struct rtl_stats status, struct sk_buff *skb);
+                                const struct rtl_stats *status, struct sk_buff *skb);
        void (*add_wowlan_pattern)(struct ieee80211_hw *hw,
                                   struct rtl_wow_pattern *rtl_pattern,
                                   u8 index);