From 66af0d7e80fb55c6811ee289e777c8a8d69ce494 Mon Sep 17 00:00:00 2001 From: Roland Vossen Date: Fri, 16 Sep 2011 12:27:58 -0700 Subject: [PATCH] staging: brcm80211: fixed sparse endianness warnings on fullmac scan pars Three structures that are sent to the dongle have been annotated for correct endianness: struct brcmf_iscan_params, brcmf_scan_params, brcmf_cfg80211_scan_req. Reported-by: Johannes Berg Reviewed-by: Arend van Spriel Reviewed-by: Franky Lin Signed-off-by: Franky Lin Signed-off-by: Greg Kroah-Hartman --- drivers/staging/brcm80211/brcmfmac/dhd.h | 33 +++++------ .../staging/brcm80211/brcmfmac/wl_cfg80211.c | 59 +++++++++---------- .../staging/brcm80211/brcmfmac/wl_cfg80211.h | 2 +- 3 files changed, 42 insertions(+), 52 deletions(-) diff --git a/drivers/staging/brcm80211/brcmfmac/dhd.h b/drivers/staging/brcm80211/brcmfmac/dhd.h index 2967ada0cb60..e1d7c57482b8 100644 --- a/drivers/staging/brcm80211/brcmfmac/dhd.h +++ b/drivers/staging/brcm80211/brcmfmac/dhd.h @@ -410,24 +410,24 @@ struct brcmf_ssid_le { unsigned char SSID[32]; }; -struct brcmf_scan_params { - struct brcmf_ssid ssid; /* default: {0, ""} */ +struct brcmf_scan_params_le { + struct brcmf_ssid_le ssid_le; /* default: {0, ""} */ u8 bssid[ETH_ALEN]; /* default: bcast */ s8 bss_type; /* default: any, * DOT11_BSSTYPE_ANY/INFRASTRUCTURE/INDEPENDENT */ u8 scan_type; /* flags, 0 use default */ - s32 nprobes; /* -1 use default, number of probes per channel */ - s32 active_time; /* -1 use default, dwell time per channel for + __le32 nprobes; /* -1 use default, number of probes per channel */ + __le32 active_time; /* -1 use default, dwell time per channel for * active scanning */ - s32 passive_time; /* -1 use default, dwell time per channel + __le32 passive_time; /* -1 use default, dwell time per channel * for passive scanning */ - s32 home_time; /* -1 use default, dwell time for the home channel - * between channel scans + __le32 home_time; /* -1 use default, dwell time for the + * home channel between channel scans */ - s32 channel_num; /* count of channels and ssids that follow + __le32 channel_num; /* count of channels and ssids that follow * * low half is count of channels in * channel_list, 0 means default (use all @@ -443,22 +443,17 @@ struct brcmf_scan_params { * fixed parameter portion is assumed, otherwise * ssid in the fixed portion is ignored */ - u16 channel_list[1]; /* list of chanspecs */ + __le16 channel_list[1]; /* list of chanspecs */ }; /* incremental scan struct */ -struct brcmf_iscan_params { - u32 version; - u16 action; - u16 scan_duration; - struct brcmf_scan_params params; +struct brcmf_iscan_params_le { + __le32 version; + __le16 action; + __le16 scan_duration; + struct brcmf_scan_params_le params_le; }; -/* 3 fields + size of brcmf_scan_params, not including variable length array */ -#define BRCMF_ISCAN_PARAMS_FIXED_SIZE \ - (offsetof(struct brcmf_iscan_params, params) + \ - sizeof(struct brcmf_ssid)) - struct brcmf_scan_results { u32 buflen; u32 version; diff --git a/drivers/staging/brcm80211/brcmfmac/wl_cfg80211.c b/drivers/staging/brcm80211/brcmfmac/wl_cfg80211.c index c4a8117a557b..2dced70ac2f3 100644 --- a/drivers/staging/brcm80211/brcmfmac/wl_cfg80211.c +++ b/drivers/staging/brcm80211/brcmfmac/wl_cfg80211.c @@ -359,9 +359,10 @@ static s32 brcmf_dev_intvar_set(struct net_device *dev, s8 *name, s32 val) s8 buf[BRCMF_C_IOCTL_SMLEN]; u32 len; s32 err = 0; + __le32 val_le; - val = cpu_to_le32(val); - len = brcmu_mkiovar(name, (char *)(&val), sizeof(val), buf, + val_le = cpu_to_le32(val); + len = brcmu_mkiovar(name, (char *)(&val_le), sizeof(val_le), buf, sizeof(buf)); BUG_ON(!len); @@ -411,25 +412,19 @@ static void brcmf_set_mpc(struct net_device *ndev, int mpc) } } -static void wl_iscan_prep(struct brcmf_scan_params *params, +static void wl_iscan_prep(struct brcmf_scan_params_le *params_le, struct brcmf_ssid *ssid) { - memcpy(params->bssid, ether_bcast, ETH_ALEN); - params->bss_type = DOT11_BSSTYPE_ANY; - params->scan_type = 0; - params->nprobes = -1; - params->active_time = -1; - params->passive_time = -1; - params->home_time = -1; - params->channel_num = 0; - - params->nprobes = cpu_to_le32(params->nprobes); - params->active_time = cpu_to_le32(params->active_time); - params->passive_time = cpu_to_le32(params->passive_time); - params->home_time = cpu_to_le32(params->home_time); + memcpy(params_le->bssid, ether_bcast, ETH_ALEN); + params_le->bss_type = DOT11_BSSTYPE_ANY; + params_le->scan_type = 0; + params_le->channel_num = 0; + params_le->nprobes = cpu_to_le32(-1); + params_le->active_time = cpu_to_le32(-1); + params_le->passive_time = cpu_to_le32(-1); + params_le->home_time = cpu_to_le32(-1); if (ssid && ssid->SSID_len) - memcpy(¶ms->ssid, ssid, sizeof(struct brcmf_ssid)); - + memcpy(¶ms_le->ssid_le, ssid, sizeof(struct brcmf_ssid)); } static s32 @@ -460,9 +455,9 @@ static s32 brcmf_run_iscan(struct brcmf_cfg80211_iscan_ctrl *iscan, struct brcmf_ssid *ssid, u16 action) { - s32 params_size = (BRCMF_SCAN_PARAMS_FIXED_SIZE + - offsetof(struct brcmf_iscan_params, params)); - struct brcmf_iscan_params *params; + s32 params_size = BRCMF_SCAN_PARAMS_FIXED_SIZE + + offsetof(struct brcmf_iscan_params_le, params_le); + struct brcmf_iscan_params_le *params; s32 err = 0; if (ssid && ssid->SSID_len) @@ -472,13 +467,12 @@ brcmf_run_iscan(struct brcmf_cfg80211_iscan_ctrl *iscan, return -ENOMEM; BUG_ON(params_size >= BRCMF_C_IOCTL_SMLEN); - wl_iscan_prep(¶ms->params, ssid); + wl_iscan_prep(¶ms->params_le, ssid); params->version = cpu_to_le32(BRCMF_ISCAN_REQ_VERSION); params->action = cpu_to_le16(action); params->scan_duration = cpu_to_le16(0); - /* params_size += offsetof(struct brcmf_iscan_params, params); */ err = brcmf_dev_iovar_setbuf(iscan->dev, "iscan", params, params_size, iscan->ioctl_buf, BRCMF_C_IOCTL_SMLEN); if (unlikely(err)) { @@ -537,6 +531,7 @@ __brcmf_cfg80211_scan(struct wiphy *wiphy, struct net_device *ndev, bool iscan_req; bool spec_scan; s32 err = 0; + u32 SSID_len; if (unlikely(test_bit(WL_STATUS_SCANNING, &cfg_priv->status))) { WL_ERR("Scanning already : status (%lu)\n", cfg_priv->status); @@ -577,12 +572,12 @@ __brcmf_cfg80211_scan(struct wiphy *wiphy, struct net_device *ndev, } else { WL_SCAN("ssid \"%s\", ssid_len (%d)\n", ssids->ssid, ssids->ssid_len); - memset(&sr->ssid, 0, sizeof(sr->ssid)); - sr->ssid.SSID_len = - min_t(u8, sizeof(sr->ssid.SSID), ssids->ssid_len); - if (sr->ssid.SSID_len) { - memcpy(sr->ssid.SSID, ssids->ssid, sr->ssid.SSID_len); - sr->ssid.SSID_len = cpu_to_le32(sr->ssid.SSID_len); + memset(&sr->ssid_le, 0, sizeof(sr->ssid_le)); + SSID_len = min_t(u8, sizeof(sr->ssid_le.SSID), ssids->ssid_len); + sr->ssid_le.SSID_len = cpu_to_le32(0); + if (SSID_len) { + memcpy(sr->ssid_le.SSID, ssids->ssid, SSID_len); + sr->ssid_le.SSID_len = cpu_to_le32(SSID_len); spec_scan = true; } else { WL_SCAN("Broadcast scan\n"); @@ -596,12 +591,12 @@ __brcmf_cfg80211_scan(struct wiphy *wiphy, struct net_device *ndev, goto scan_out; } brcmf_set_mpc(ndev, 0); - err = brcmf_dev_ioctl(ndev, BRCMF_C_SCAN, &sr->ssid, - sizeof(sr->ssid)); + err = brcmf_dev_ioctl(ndev, BRCMF_C_SCAN, &sr->ssid_le, + sizeof(sr->ssid_le)); if (err) { if (err == -EBUSY) WL_INFO("system busy : scan for \"%s\" " - "canceled\n", sr->ssid.SSID); + "canceled\n", sr->ssid_le.SSID); else WL_ERR("WLC_SCAN error (%d)\n", err); diff --git a/drivers/staging/brcm80211/brcmfmac/wl_cfg80211.h b/drivers/staging/brcm80211/brcmfmac/wl_cfg80211.h index db71762f4974..7a8c671cb9be 100644 --- a/drivers/staging/brcm80211/brcmfmac/wl_cfg80211.h +++ b/drivers/staging/brcm80211/brcmfmac/wl_cfg80211.h @@ -188,7 +188,7 @@ struct brcmf_cfg80211_dev { /* basic structure of scan request */ struct brcmf_cfg80211_scan_req { - struct brcmf_ssid ssid; + struct brcmf_ssid_le ssid_le; }; /* basic structure of information element */ -- 2.30.2