Suspicious code in halbtc8821a1ant driver
Subsystems (2)
Hi all,
While doing some static analysis I came across the following piece of code at drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a1ant.c:1581:
1581 static void btc8821a1ant_act_bt_sco_hid_only_busy(struct btc_coexist *btcoexist,
1582 u8 wifi_status)
1583 {
1584 /* tdma and coex table */
1585 btc8821a1ant_ps_tdma(btcoexist, NORMAL_EXEC, true, 5);
1586
1587 if (BT_8821A_1ANT_WIFI_STATUS_NON_CONNECTED_ASSO_AUTH_SCAN ==
1588 wifi_status)
1589 btc8821a1ant_coex_table_with_type(btcoexist, NORMAL_EXEC, 1);
1590 else
1591 btc8821a1ant_coex_table_with_type(btcoexist, NORMAL_EXEC, 1);
1592 }
The issue here is that the code for both branches of the if-else statement is identical.
The if-else was introduced a year ago in this commit c6821613e653
I wonder if an argument should be changed in any of the calls to btc8821a1ant_coex_table_with_type?
What do you think?
Thanks
--
Gustavo
Quoted 18 lines · Gustavo A. R. Silva
Hi all,
While doing some static analysis I came across the following piece of code at
drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a1ant.c:1581:1581 static void btc8821a1ant_act_bt_sco_hid_only_busy(struct
btc_coexist*btcoexist, 1582 u8wifi_status) 1583 {
1584 /* tdma and coex table */
1585 btc8821a1ant_ps_tdma(btcoexist,NORMAL_EXEC, true, 5); 1586
1587 if (BT_8821A_1ANT_WIFI_STATUS_NON_CONNECTED_ASSO_AUTH_SCAN== 1588 wifi_status)
1589 btc8821a1ant_coex_table_with_type(btcoexist,NORMAL_EXEC, 1); 1590 else
1591 btc8821a1ant_coex_table_with_type(btcoexist,NORMAL_EXEC, 1); 1592 }
Quoted 8 lines
The issue here is that the code for both branches of the if-else statement is identical.
The if-else was introduced a year ago in this commit
c6821613e653I wonder if an argument should be changed in any of the calls to
btc8821a1ant_coex_table_with_type?
It looks weird. Since we're in spring vacation, I'll check my colleague next Monday.
PK