On Sun, Oct 29, 2017 at 06:54:09PM +0300, Yury Norov wrote:
> Hi Kien,
> 
> On Sat, Oct 28, 2017 at 10:46:13PM -0400, Kien Ha wrote:
> > >From fc52a98aca0c033f2c03fdc7e8f83ae49625675a Mon Sep 17 00:00:00 2001
> > From: Kien Ha <kienha9...@gmail.com>
> > Date: Fri, 27 Oct 2017 14:07:55 -0400
> > Subject: [PATCH] Fix line too long warning
> > 
> > Signed-off-by: Kien Ha <kienha9...@gmail.com>
> > ---
> >  drivers/staging/rtlwifi/base.c | 3 ++-
> >  1 file changed, 2 insertions(+), 1 deletion(-)
> > 
> > diff --git a/drivers/staging/rtlwifi/base.c b/drivers/staging/rtlwifi/base.c
> > index b88b0e8edd3d..bbc80f976e12 100644
> > --- a/drivers/staging/rtlwifi/base.c
> > +++ b/drivers/staging/rtlwifi/base.c
> > @@ -1283,7 +1283,8 @@ void rtl_get_tcb_desc(struct ieee80211_hw *hw,
> >                             } else {
> >                                     if (rtlmac->mode == WIRELESS_MODE_B) {
> >                                             tcb_desc->hw_rate =
> > -                                               
> > rtlpriv->cfg->maps[RTL_RC_CCK_RATE11M];
> > +                                               rtlpriv->cfg->maps[
> > +                                               RTL_RC_CCK_RATE11M];
> 
> At first, if you fix this, you should also fix similar problem 3 lines
> below, right?
> 
> >                                     } else {
> >                                             tcb_desc->hw_rate =
> >                                                 
> > rtlpriv->cfg->maps[RTL_RC_OFDM_RATE54M];
> 
> At second, and most important, refer Documentation/process/coding-style.rst:
> Now, some people will claim that having 8-character indentations makes
> the code move too far to the right, and makes it hard to read on a 
> 80-character terminal screen.  The answer to that is that if you need 
> more than 3 levels of indentation, you're screwed anyway, and should fix
> your program.
> 
> The real problem here is not "line too long", but "indentation level too
> big" - 5. And it worth to address real problem.

It's not so hard though, something like this:

void rtl_get_tcb_desc(struct ieee80211_hw *hw,
                      struct ieee80211_tx_info *info,
                      struct ieee80211_sta *sta,
                      struct sk_buff *skb, struct rtl_tcb_desc *tcb_desc)
{
#define SET_RATE_ID(rate_id)                                    \
        ((rtlpriv->cfg->spec_ver & RTL_SPEC_NEW_RATEID) ?       \
                rtl_mrate_idx_to_arfr_id(hw, rate_id,           \
                        (sta_entry ? sta_entry->wireless_mode : \
                         WIRELESS_MODE_G)) :                    \
                rate_id)

        struct rtl_priv *rtlpriv = rtl_priv(hw);
        struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw));
        struct ieee80211_hdr *hdr = rtl_get_hdr(skb);
        struct rtl_sta_info *sta_entry =
                (sta ? (struct rtl_sta_info *)sta->drv_priv : NULL);

        __le16 fc = rtl_get_fc(skb);

        tcb_desc->hw_rate = _rtl_get_tx_hw_rate(hw, info);

        if (rtl_is_tx_report_skb(hw, skb))
                tcb_desc->use_spe_rpt = 1;

        if (!ieee80211_is_data(fc)) {
                tcb_desc->use_driver_rate = true;
                tcb_desc->ratr_index = SET_RATE_ID(RATR_INX_WIRELESS_MC);
                tcb_desc->disable_ratefallback = 1;
                tcb_desc->mac_id = 0;
                tcb_desc->packet_bw = false;
                return;
        }

        if (is_multicast_ether_addr(hdr->addr1))
                tcb_desc->multicast = 1;
        else if (is_broadcast_ether_addr(hdr->addr1))
                tcb_desc->broadcast = 1;

        /*
         * we set data rate INX 0 in rtl_rc.c if skb is special data or
         * mgt which need low data rate. So tcb_desc->hw_rate is just used
         * for special data and mgt frames
         */
        if (info->control.rates[0].idx == 0 || ieee80211_is_nullfunc(fc)) {
                tcb_desc->use_driver_rate = true;
                tcb_desc->ratr_index = SET_RATE_ID(RATR_INX_WIRELESS_MC);
                tcb_desc->disable_ratefallback = 1;
                goto rtl_query;
        }

        /* because hw will never use hw_rate
         * when tcb_desc->use_driver_rate = false
         * so we never set highest N rate here,
         * and N rate will all be controlled by FW
         * when tcb_desc->use_driver_rate = false
         */
        if (sta && sta->vht_cap.vht_supported) {
                tcb_desc->hw_rate = _rtl_get_vht_highest_n_rate(hw, sta);
                goto rtl_query;
        }

        if (sta && (sta->ht_cap.ht_supported)) {
                tcb_desc->hw_rate = _rtl_get_highest_n_rate(hw, sta);
                goto rtl_query;
        }

        if (rtlmac->mode == WIRELESS_MODE_B)
                tcb_desc->hw_rate = rtlpriv->cfg->maps[RTL_RC_CCK_RATE11M];
        else
                tcb_desc->hw_rate = rtlpriv->cfg->maps[RTL_RC_OFDM_RATE54M];
rtl_query:
        _rtl_txrate_selectmode(hw, sta, tcb_desc);
        _rtl_query_bandwidth_mode(hw, sta, tcb_desc);
        _rtl_qurey_shortpreamble_mode(hw, tcb_desc, info);
        _rtl_query_shortgi(hw, sta, tcb_desc, info);
        _rtl_query_protection_mode(hw, tcb_desc, info);
#undef SET_RATE_ID
}

(Compeletely untested and most probably wrong, just illustration.)

Yury

Reply via email to