brcmfmac: fix sparse warnings in e-scan related code

With the introduction of e-scan mechanism in brcmfmac
(e756af5 brcmfmac: add e-scan support.) a couple of sparse
warnings were introduced. This patch resolves those.

Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com>
Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c b/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c
index 3491086..5894972 100644 (file)
--- a/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c
@@ -698,11 +698,11 @@ static void brcmf_escan_prep(struct brcmf_scan_params_le *params_le,
        u32 n_channels;
        s32 i;
        s32 offset;
-       __le16 chanspec;
+       u16 chanspec;
        u16 channel;
        struct ieee80211_channel *req_channel;
        char *ptr;
-       struct brcmf_ssid ssid;
+       struct brcmf_ssid_le ssid_le;
 
        memcpy(params_le->bssid, ether_bcast, ETH_ALEN);
        params_le->bss_type = DOT11_BSSTYPE_ANY;
@@ -745,13 +745,10 @@ static void brcmf_escan_prep(struct brcmf_scan_params_le *params_le,
                                        chanspec |= WL_CHANSPEC_CTL_SB_UPPER;
                        }
 
-                       params_le->channel_list[i] =
-                               (channel & WL_CHANSPEC_CHAN_MASK) |
-                               chanspec;
+                       chanspec |= (channel & WL_CHANSPEC_CHAN_MASK);
                        WL_SCAN("Chan : %d, Channel spec: %x\n",
-                               channel, params_le->channel_list[i]);
-                       params_le->channel_list[i] =
-                               cpu_to_le16(params_le->channel_list[i]);
+                               channel, chanspec);
+                       params_le->channel_list[i] = cpu_to_le16(chanspec);
                }
        } else {
                WL_SCAN("Scanning all channels\n");
@@ -764,17 +761,18 @@ static void brcmf_escan_prep(struct brcmf_scan_params_le *params_le,
                offset = roundup(offset, sizeof(u32));
                ptr = (char *)params_le + offset;
                for (i = 0; i < n_ssids; i++) {
-                       memset(&ssid, 0, sizeof(ssid));
-                       ssid.SSID_len = cpu_to_le32(request->ssids[i].ssid_len);
-                       memcpy(ssid.SSID, request->ssids[i].ssid,
-                                       request->ssids[i].ssid_len);
-                       if (!ssid.SSID_len)
+                       memset(&ssid_le, 0, sizeof(ssid_le));
+                       ssid_le.SSID_len =
+                                       cpu_to_le32(request->ssids[i].ssid_len);
+                       memcpy(ssid_le.SSID, request->ssids[i].ssid,
+                              request->ssids[i].ssid_len);
+                       if (!ssid_le.SSID_len)
                                WL_SCAN("%d: Broadcast scan\n", i);
                        else
                                WL_SCAN("%d: scan for  %s size =%d\n", i,
-                               ssid.SSID, ssid.SSID_len);
-                       memcpy(ptr, &ssid, sizeof(ssid));
-                       ptr += sizeof(ssid);
+                                       ssid_le.SSID, ssid_le.SSID_len);
+                       memcpy(ptr, &ssid_le, sizeof(ssid_le));
+                       ptr += sizeof(ssid_le);
                }
        } else {
                WL_SCAN("Broadcast scan %p\n", request->ssids);
@@ -2840,10 +2838,13 @@ brcmf_compare_update_same_bss(struct brcmf_bss_info_le *bss,
                !memcmp(bss_info_le->SSID, bss->SSID, bss_info_le->SSID_len)) {
                if ((bss->flags & WLC_BSS_RSSI_ON_CHANNEL) ==
                        (bss_info_le->flags & WLC_BSS_RSSI_ON_CHANNEL)) {
+                       s16 bss_rssi = le16_to_cpu(bss->RSSI);
+                       s16 bss_info_rssi = le16_to_cpu(bss_info_le->RSSI);
+
                        /* preserve max RSSI if the measurements are
                        * both on-channel or both off-channel
                        */
-                       if (bss_info_le->RSSI > bss->RSSI)
+                       if (bss_info_rssi > bss_rssi)
                                bss->RSSI = bss_info_le->RSSI;
                } else if ((bss->flags & WLC_BSS_RSSI_ON_CHANNEL) &&
                        (bss_info_le->flags & WLC_BSS_RSSI_ON_CHANNEL) == 0) {