On Wed, 2018-04-04 at 20:41 +0800, Pkshih wrote:
> On Wed, 2018-04-04 at 02:43 +0000, Larry Finger wrote:
> > On 03/28/2018 02:27 AM, pkshih@xxxxxxxxxxx wrote:
> > > From: Ping-Ke Shih <pkshih@xxxxxxxxxxx>
> > >
> > > This file supports 8822be WiFi module with two physical antenna that
> > > means one antenna will share with BT.
> > >
> > > Signed-off-by: Ping-Ke Shih <pkshih@xxxxxxxxxxx>
> > > ---
> > > .../realtek/rtlwifi/btcoexist/halbtc8822b1ant.c | 5303 ++++++++++++++++++++
> > > .../realtek/rtlwifi/btcoexist/halbtc8822b1ant.h | 413 ++
> > > 2 files changed, 5716 insertions(+)
> > > create mode 100644 drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8822b1ant.c
> > > create mode 100644 drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8822b1ant.h
> >
> > --snip--
> >
> > > +/*anttenna control by bb mac bt antdiv pta to write 0x4c 0xcb4,0xcbd*/
> > > +
> > > +static
> > > +void hallbtc882b1ant_set_ant_switch(struct btc_coexist *btcoexist,
> > > + bool force_exec, u8 ctrl_type,
> > > + u8 pos_type)
> > > +{
> > > + struct rtl_priv *rtlpriv = btcoexist->adapter;
> > > + bool switch_polatiry_inverse = false;
> > > + u8 regval_0xcbd = 0, regval_0x64;
> > > + u32 u32tmp1 = 0, u32tmp2 = 0, u32tmp3 = 0;
> > > +
> > > + /* Ext switch buffer mux */
> > > + btcoexist->btc_write_1byte(btcoexist, 0x974, 0xff);
> > > + btcoexist->btc_write_1byte_bitmask(btcoexist, 0x1991, 0x3, 0x0);
> > > + btcoexist->btc_write_1byte_bitmask(btcoexist, 0xcbe, 0x8, 0x0);
> > > +
> > > + if (!rfe_type->ext_ant_switch_exist)
> > > + return;
> > > +
> > > + coex_dm->cur_ext_ant_switch_status = (ctrl_type << 8) + pos_type;
> > > +
> > > + if (!force_exec) {
> > > + if (coex_dm->pre_ext_ant_switch_status ==
> > > + coex_dm->cur_ext_ant_switch_status)
> > > + return;
> > > + }
> > > +
> > > + coex_dm->pre_ext_ant_switch_status = coex_dm->cur_ext_ant_switch_status;
> > > +
> > > + /* swap control polarity if use different switch control polarity*/
> > > + /* Normal switch polarity for SPDT,
> > > + * 0xcbd[1:0] = 2b'01 => Ant to BTG, WLA
> > > + * 0xcbd[1:0] = 2b'10 => Ant to WLG
> > > + */
> > > + switch_polatiry_inverse = (rfe_type->ext_ant_switch_ctrl_polarity == 1 ?
> > > + ~switch_polatiry_inverse :
> > > + switch_polatiry_inverse);
> >
> > gcc 7.3.1 reports the following:
> >
> > CC [M] drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8822b1ant.o
> > drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8822b1ant.c: In function
> > ‘hallbtc882b1ant_set_ant_switch’:
> > drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8822b1ant.c:2193:9:
> > warning: ‘~’ on a boolean expression [-Wbool-operation]
> > ~switch_polatiry_inverse :
> > ^
> > drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8822b1ant.c:2193:9: note:
> > did you mean to use logical not?
> > ~switch_polatiry_inverse :
> > ^
> >
> > For a boolean, you should use !bool, not -bool. In addition, it would be better
> > to use switch_polarity_inverse, not switch_polatiry_inverse. The same "typo"
> > happens in other places in this file. I suggest
> >
> > sed -i 's/polatiry_inverse/polarity_inverse/g' \
> > drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8822b1ant.c.
> >
>
> I'll fix the typo, and declare the variable switch_polarity_inverse without
> initial value, then assign value true or false in the line mentioned in above
> warning. It looks like:
> bool switch_polatiry_inverse;
> ...
> switch_polarity_inverse = (rfe_type->ext_ant_switch_ctrl_polarity == 1 ?
> true : false);
>
Fix the last expression again:
switch_polarity_inverse = (rfe_type->ext_ant_switch_ctrl_polarity == 1);
