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staging/rtl8192u: use s8 instead of char

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Compiling the rtlwifi drivers for ARM with gcc -Wextra warns about lots of
incorrect code that results from 'char' being unsigned here, e.g.

staging/rtl8192u/r8192U_core.c:4150:16: error: comparison is always false due to limited range of data type [-Werror=type-limits]
staging/rtl8192u/r8192U_dm.c:646:50: error: comparison is always false due to limited range of data type [-Werror=type-limits]

This patch changes all uses of 'char' in this driver that refer to
8-bit integers to use 's8' instead, which is signed on all architectures.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Arnd Bergmann 2016-07-20 17:13:58 +02:00 committed by Greg Kroah-Hartman
parent a0693e22d1
commit f352a9eeb1
3 changed files with 11 additions and 11 deletions
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4
drivers/staging/rtl8192u/ieee80211/ieee80211.h
View File

@ -746,7 +746,7 @@ struct ieee80211_rx_stats {
bool bisrxaggrsubframe;
bool bPacketBeacon; //cosa add for rssi
bool bToSelfBA; //cosa add for rssi
char cck_adc_pwdb[4]; //cosa add for rx path selection
s8 cck_adc_pwdb[4]; //cosa add for rx path selection
u16 Seq_Num;
};
@ -1814,7 +1814,7 @@ struct ieee80211_device {
u32 wpax_type_notify; //{added by David, 2006.9.26}
/* QoS related flag */
char init_wmmparam_flag;
s8 init_wmmparam_flag;
/* set on initialization */
u8 qos_support;

4
drivers/staging/rtl8192u/r8192U.h
View File

@ -533,7 +533,7 @@ typedef struct _rt_9x_tx_rate_history {
u32 ht_mcs[4][16];
} rt_tx_rahis_t, *prt_tx_rahis_t;
typedef struct _RT_SMOOTH_DATA_4RF {
char elements[4][100]; /* array to store values */
s8 elements[4][100]; /* array to store values */
u32 index; /* index to current array to store */
u32 TotalNum; /* num of valid elements */
u32 TotalVal[4]; /* sum of valid elements */
@ -1031,7 +1031,7 @@ typedef struct r8192_priv {
s8 cck_present_attentuation;
u8 cck_present_attentuation_20Mdefault;
u8 cck_present_attentuation_40Mdefault;
char cck_present_attentuation_difference;
s8 cck_present_attentuation_difference;
bool btxpower_tracking;
bool bcck_in_ch14;
bool btxpowerdata_readfromEEPORM;

14
drivers/staging/rtl8192u/r8192U_core.c
View File

@ -4206,7 +4206,7 @@ static void rtl8192_process_phyinfo(struct r8192_priv *priv, u8 *buffer,
*
* Return: 0-100 percentage
*---------------------------------------------------------------------------*/
static u8 rtl819x_query_rxpwrpercentage(char antpower)
static u8 rtl819x_query_rxpwrpercentage(s8 antpower)
{
if ((antpower <= -100) || (antpower >= 20))
return 0;
@ -4217,9 +4217,9 @@ static u8 rtl819x_query_rxpwrpercentage(char antpower)
} /* QueryRxPwrPercentage */
static u8 rtl819x_evm_dbtopercentage(char value)
static u8 rtl819x_evm_dbtopercentage(s8 value)
{
char ret_val;
s8 ret_val;
ret_val = value;
@ -4294,8 +4294,8 @@ static void rtl8192_query_rxphystatus(struct r8192_priv *priv,
phy_ofdm_rx_status_rxsc_sgien_exintfflag *prxsc;
u8 *prxpkt;
u8 i, max_spatial_stream, tmp_rxsnr, tmp_rxevm, rxsc_sgien_exflg;
char rx_pwr[4], rx_pwr_all = 0;
char rx_snrX, rx_evmX;
s8 rx_pwr[4], rx_pwr_all = 0;
s8 rx_snrX, rx_evmX;
u8 evm, pwdb_all;
u32 RSSI, total_rssi = 0;
u8 is_cck_rate = 0;
@ -4420,7 +4420,7 @@ static void rtl8192_query_rxphystatus(struct r8192_priv *priv,
/* Get Rx snr value in DB */
tmp_rxsnr = pofdm_buf->rxsnr_X[i];
rx_snrX = (char)(tmp_rxsnr);
rx_snrX = (s8)(tmp_rxsnr);
rx_snrX /= 2;
priv->stats.rxSNRdB[i] = (long)rx_snrX;
@ -4454,7 +4454,7 @@ static void rtl8192_query_rxphystatus(struct r8192_priv *priv,
for (i = 0; i < max_spatial_stream; i++) {
tmp_rxevm = pofdm_buf->rxevm_X[i];
rx_evmX = (char)(tmp_rxevm);
rx_evmX = (s8)(tmp_rxevm);
/* Do not use shift operation like "rx_evmX >>= 1"
* because the compiler of free build environment will