The patch titled
Subject: wifi: rt2x00: use explicitly signed or unsigned types
has been added to the -mm mm-nonmm-unstable branch. Its filename is
wifi-rt2x00-use-explicitly-signed-or-unsigned-types.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/wifi-rt2x00-use-explicitly-signed-or-unsigned-types.patch
This patch will later appear in the mm-nonmm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: "Jason A. Donenfeld" <Jason@xxxxxxxxx>
Subject: wifi: rt2x00: use explicitly signed or unsigned types
Date: Wed, 19 Oct 2022 09:55:41 -0600
On some platforms, `char` is unsigned, but this driver, for the most part,
assumed it was signed. In other places, it uses `char` to mean an
unsigned number, but only in cases when the values are small. And in
still other places, `char` is used as a boolean. Put an end to this
confusion by declaring explicit types, depending on the context.
Link: https://lkml.kernel.org/r/20221019155541.3410813-1-Jason@xxxxxxxxx
Signed-off-by: Jason A. Donenfeld <Jason@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/net/wireless/ralink/rt2x00/rt2400pci.c | 8 +-
drivers/net/wireless/ralink/rt2x00/rt2400pci.h | 2
drivers/net/wireless/ralink/rt2x00/rt2500pci.c | 8 +-
drivers/net/wireless/ralink/rt2x00/rt2500pci.h | 2
drivers/net/wireless/ralink/rt2x00/rt2500usb.c | 8 +-
drivers/net/wireless/ralink/rt2x00/rt2500usb.h | 2
drivers/net/wireless/ralink/rt2x00/rt2800lib.c | 60 +++++++--------
drivers/net/wireless/ralink/rt2x00/rt2800lib.h | 8 +-
drivers/net/wireless/ralink/rt2x00/rt2x00usb.c | 6 -
drivers/net/wireless/ralink/rt2x00/rt61pci.c | 4 -
drivers/net/wireless/ralink/rt2x00/rt61pci.h | 2
drivers/net/wireless/ralink/rt2x00/rt73usb.c | 4 -
drivers/net/wireless/ralink/rt2x00/rt73usb.h | 2
13 files changed, 58 insertions(+), 58 deletions(-)
--- a/drivers/net/wireless/ralink/rt2x00/rt2400pci.c~wifi-rt2x00-use-explicitly-signed-or-unsigned-types
+++ a/drivers/net/wireless/ralink/rt2x00/rt2400pci.c
@@ -1023,9 +1023,9 @@ static int rt2400pci_set_state(struct rt
{
u32 reg, reg2;
unsigned int i;
- char put_to_sleep;
- char bbp_state;
- char rf_state;
+ bool put_to_sleep;
+ u8 bbp_state;
+ u8 rf_state;
put_to_sleep = (state != STATE_AWAKE);
@@ -1561,7 +1561,7 @@ static int rt2400pci_probe_hw_mode(struc
{
struct hw_mode_spec *spec = &rt2x00dev->spec;
struct channel_info *info;
- char *tx_power;
+ u8 *tx_power;
unsigned int i;
/*
--- a/drivers/net/wireless/ralink/rt2x00/rt2400pci.h~wifi-rt2x00-use-explicitly-signed-or-unsigned-types
+++ a/drivers/net/wireless/ralink/rt2x00/rt2400pci.h
@@ -939,7 +939,7 @@
#define DEFAULT_TXPOWER 39
#define __CLAMP_TX(__txpower) \
- clamp_t(char, (__txpower), MIN_TXPOWER, MAX_TXPOWER)
+ clamp_t(u8, (__txpower), MIN_TXPOWER, MAX_TXPOWER)
#define TXPOWER_FROM_DEV(__txpower) \
((__CLAMP_TX(__txpower) - MAX_TXPOWER) + MIN_TXPOWER)
--- a/drivers/net/wireless/ralink/rt2x00/rt2500pci.c~wifi-rt2x00-use-explicitly-signed-or-unsigned-types
+++ a/drivers/net/wireless/ralink/rt2x00/rt2500pci.c
@@ -1176,9 +1176,9 @@ static int rt2500pci_set_state(struct rt
{
u32 reg, reg2;
unsigned int i;
- char put_to_sleep;
- char bbp_state;
- char rf_state;
+ bool put_to_sleep;
+ u8 bbp_state;
+ u8 rf_state;
put_to_sleep = (state != STATE_AWAKE);
@@ -1856,7 +1856,7 @@ static int rt2500pci_probe_hw_mode(struc
{
struct hw_mode_spec *spec = &rt2x00dev->spec;
struct channel_info *info;
- char *tx_power;
+ u8 *tx_power;
unsigned int i;
/*
--- a/drivers/net/wireless/ralink/rt2x00/rt2500pci.h~wifi-rt2x00-use-explicitly-signed-or-unsigned-types
+++ a/drivers/net/wireless/ralink/rt2x00/rt2500pci.h
@@ -1219,6 +1219,6 @@
(((u8)(__txpower)) > MAX_TXPOWER) ? DEFAULT_TXPOWER : (__txpower)
#define TXPOWER_TO_DEV(__txpower) \
- clamp_t(char, __txpower, MIN_TXPOWER, MAX_TXPOWER)
+ clamp_t(u8, __txpower, MIN_TXPOWER, MAX_TXPOWER)
#endif /* RT2500PCI_H */
--- a/drivers/net/wireless/ralink/rt2x00/rt2500usb.c~wifi-rt2x00-use-explicitly-signed-or-unsigned-types
+++ a/drivers/net/wireless/ralink/rt2x00/rt2500usb.c
@@ -984,9 +984,9 @@ static int rt2500usb_set_state(struct rt
u16 reg;
u16 reg2;
unsigned int i;
- char put_to_sleep;
- char bbp_state;
- char rf_state;
+ bool put_to_sleep;
+ u8 bbp_state;
+ u8 rf_state;
put_to_sleep = (state != STATE_AWAKE);
@@ -1663,7 +1663,7 @@ static int rt2500usb_probe_hw_mode(struc
{
struct hw_mode_spec *spec = &rt2x00dev->spec;
struct channel_info *info;
- char *tx_power;
+ u8 *tx_power;
unsigned int i;
/*
--- a/drivers/net/wireless/ralink/rt2x00/rt2500usb.h~wifi-rt2x00-use-explicitly-signed-or-unsigned-types
+++ a/drivers/net/wireless/ralink/rt2x00/rt2500usb.h
@@ -839,6 +839,6 @@
(((u8)(__txpower)) > MAX_TXPOWER) ? DEFAULT_TXPOWER : (__txpower)
#define TXPOWER_TO_DEV(__txpower) \
- clamp_t(char, __txpower, MIN_TXPOWER, MAX_TXPOWER)
+ clamp_t(u8, __txpower, MIN_TXPOWER, MAX_TXPOWER)
#endif /* RT2500USB_H */
--- a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c~wifi-rt2x00-use-explicitly-signed-or-unsigned-types
+++ a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
@@ -3372,10 +3372,10 @@ static void rt2800_config_channel_rf53xx
if (rt2x00_has_cap_bt_coexist(rt2x00dev)) {
if (rt2x00_rt_rev_gte(rt2x00dev, RT5390, REV_RT5390F)) {
/* r55/r59 value array of channel 1~14 */
- static const char r55_bt_rev[] = {0x83, 0x83,
+ static const u8 r55_bt_rev[] = {0x83, 0x83,
0x83, 0x73, 0x73, 0x63, 0x53, 0x53,
0x53, 0x43, 0x43, 0x43, 0x43, 0x43};
- static const char r59_bt_rev[] = {0x0e, 0x0e,
+ static const u8 r59_bt_rev[] = {0x0e, 0x0e,
0x0e, 0x0e, 0x0e, 0x0b, 0x0a, 0x09,
0x07, 0x07, 0x07, 0x07, 0x07, 0x07};
@@ -3384,7 +3384,7 @@ static void rt2800_config_channel_rf53xx
rt2800_rfcsr_write(rt2x00dev, 59,
r59_bt_rev[idx]);
} else {
- static const char r59_bt[] = {0x8b, 0x8b, 0x8b,
+ static const u8 r59_bt[] = {0x8b, 0x8b, 0x8b,
0x8b, 0x8b, 0x8b, 0x8b, 0x8a, 0x89,
0x88, 0x88, 0x86, 0x85, 0x84};
@@ -3392,10 +3392,10 @@ static void rt2800_config_channel_rf53xx
}
} else {
if (rt2x00_rt_rev_gte(rt2x00dev, RT5390, REV_RT5390F)) {
- static const char r55_nonbt_rev[] = {0x23, 0x23,
+ static const u8 r55_nonbt_rev[] = {0x23, 0x23,
0x23, 0x23, 0x13, 0x13, 0x03, 0x03,
0x03, 0x03, 0x03, 0x03, 0x03, 0x03};
- static const char r59_nonbt_rev[] = {0x07, 0x07,
+ static const u8 r59_nonbt_rev[] = {0x07, 0x07,
0x07, 0x07, 0x07, 0x07, 0x07, 0x07,
0x07, 0x07, 0x06, 0x05, 0x04, 0x04};
@@ -3406,14 +3406,14 @@ static void rt2800_config_channel_rf53xx
} else if (rt2x00_rt(rt2x00dev, RT5390) ||
rt2x00_rt(rt2x00dev, RT5392) ||
rt2x00_rt(rt2x00dev, RT6352)) {
- static const char r59_non_bt[] = {0x8f, 0x8f,
+ static const u8 r59_non_bt[] = {0x8f, 0x8f,
0x8f, 0x8f, 0x8f, 0x8f, 0x8f, 0x8d,
0x8a, 0x88, 0x88, 0x87, 0x87, 0x86};
rt2800_rfcsr_write(rt2x00dev, 59,
r59_non_bt[idx]);
} else if (rt2x00_rt(rt2x00dev, RT5350)) {
- static const char r59_non_bt[] = {0x0b, 0x0b,
+ static const u8 r59_non_bt[] = {0x0b, 0x0b,
0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0a,
0x0a, 0x09, 0x08, 0x07, 0x07, 0x06};
@@ -4035,23 +4035,23 @@ static void rt2800_iq_calibrate(struct r
rt2800_bbp_write(rt2x00dev, 159, cal != 0xff ? cal : 0);
}
-static char rt2800_txpower_to_dev(struct rt2x00_dev *rt2x00dev,
+static s8 rt2800_txpower_to_dev(struct rt2x00_dev *rt2x00dev,
unsigned int channel,
- char txpower)
+ s8 txpower)
{
if (rt2x00_rt(rt2x00dev, RT3593) ||
rt2x00_rt(rt2x00dev, RT3883))
txpower = rt2x00_get_field8(txpower, EEPROM_TXPOWER_ALC);
if (channel <= 14)
- return clamp_t(char, txpower, MIN_G_TXPOWER, MAX_G_TXPOWER);
+ return clamp_t(s8, txpower, MIN_G_TXPOWER, MAX_G_TXPOWER);
if (rt2x00_rt(rt2x00dev, RT3593) ||
rt2x00_rt(rt2x00dev, RT3883))
- return clamp_t(char, txpower, MIN_A_TXPOWER_3593,
+ return clamp_t(s8, txpower, MIN_A_TXPOWER_3593,
MAX_A_TXPOWER_3593);
else
- return clamp_t(char, txpower, MIN_A_TXPOWER, MAX_A_TXPOWER);
+ return clamp_t(s8, txpower, MIN_A_TXPOWER, MAX_A_TXPOWER);
}
static void rt3883_bbp_adjust(struct rt2x00_dev *rt2x00dev,
@@ -8530,7 +8530,7 @@ static void rt2800_r_calibration(struct
u8 bytevalue = 0;
int rcalcode;
u8 r_cal_code = 0;
- char d1 = 0, d2 = 0;
+ s8 d1 = 0, d2 = 0;
u8 rfvalue;
u32 MAC_RF_BYPASS0, MAC_RF_CONTROL0, MAC_PWR_PIN_CFG;
u32 maccfg;
@@ -8591,7 +8591,7 @@ static void rt2800_r_calibration(struct
if (bytevalue > 128)
d1 = bytevalue - 256;
else
- d1 = (char)bytevalue;
+ d1 = (s8)bytevalue;
rt2800_bbp_write(rt2x00dev, 22, 0x0);
rt2800_rfcsr_write_bank(rt2x00dev, 0, 35, 0x01);
@@ -8601,7 +8601,7 @@ static void rt2800_r_calibration(struct
if (bytevalue > 128)
d2 = bytevalue - 256;
else
- d2 = (char)bytevalue;
+ d2 = (s8)bytevalue;
rt2800_bbp_write(rt2x00dev, 22, 0x0);
rcalcode = rt2800_calcrcalibrationcode(rt2x00dev, d1, d2);
@@ -8703,7 +8703,7 @@ static void rt2800_rxdcoc_calibration(st
static u32 rt2800_do_sqrt_accumulation(u32 si)
{
u32 root, root_pre, bit;
- char i;
+ s8 i;
bit = 1 << 15;
root = 0;
@@ -9330,11 +9330,11 @@ static void rt2800_loft_search(struct rt
u8 alc_idx, u8 dc_result[][RF_ALC_NUM][2])
{
u32 p0 = 0, p1 = 0, pf = 0;
- char idx0 = 0, idx1 = 0;
+ s8 idx0 = 0, idx1 = 0;
u8 idxf[] = {0x00, 0x00};
u8 ibit = 0x20;
u8 iorq;
- char bidx;
+ s8 bidx;
rt2800_bbp_write(rt2x00dev, 158, 0xb0);
rt2800_bbp_write(rt2x00dev, 159, 0x80);
@@ -9384,17 +9384,17 @@ static void rt2800_loft_search(struct rt
static void rt2800_iq_search(struct rt2x00_dev *rt2x00dev, u8 ch_idx, u8 *ges, u8 *pes)
{
u32 p0 = 0, p1 = 0, pf = 0;
- char perr = 0, gerr = 0, iq_err = 0;
- char pef = 0, gef = 0;
- char psta, pend;
- char gsta, gend;
+ s8 perr = 0, gerr = 0, iq_err = 0;
+ s8 pef = 0, gef = 0;
+ s8 psta, pend;
+ s8 gsta, gend;
u8 ibit = 0x20;
u8 first_search = 0x00, touch_neg_max = 0x00;
- char idx0 = 0, idx1 = 0;
+ s8 idx0 = 0, idx1 = 0;
u8 gop;
u8 bbp = 0;
- char bidx;
+ s8 bidx;
for (bidx = 5; bidx >= 1; bidx--) {
for (gop = 0; gop < 2; gop++) {
@@ -10043,11 +10043,11 @@ static int rt2800_rf_lp_config(struct rt
return 0;
}
-static char rt2800_lp_tx_filter_bw_cal(struct rt2x00_dev *rt2x00dev)
+static s8 rt2800_lp_tx_filter_bw_cal(struct rt2x00_dev *rt2x00dev)
{
unsigned int cnt;
u8 bbp_val;
- char cal_val;
+ s8 cal_val;
rt2800_bbp_dcoc_write(rt2x00dev, 0, 0x82);
@@ -10079,7 +10079,7 @@ static void rt2800_bw_filter_calibration
u8 rx_filter_target_20m = 0x27, rx_filter_target_40m = 0x31;
int loop = 0, is_ht40, cnt;
u8 bbp_val, rf_val;
- char cal_r32_init, cal_r32_val, cal_diff;
+ s8 cal_r32_init, cal_r32_val, cal_diff;
u8 saverfb5r00, saverfb5r01, saverfb5r03, saverfb5r04, saverfb5r05;
u8 saverfb5r06, saverfb5r07;
u8 saverfb5r08, saverfb5r17, saverfb5r18, saverfb5r19, saverfb5r20;
@@ -11550,9 +11550,9 @@ static int rt2800_probe_hw_mode(struct r
{
struct hw_mode_spec *spec = &rt2x00dev->spec;
struct channel_info *info;
- char *default_power1;
- char *default_power2;
- char *default_power3;
+ s8 *default_power1;
+ s8 *default_power2;
+ s8 *default_power3;
unsigned int i, tx_chains, rx_chains;
u32 reg;
--- a/drivers/net/wireless/ralink/rt2x00/rt2800lib.h~wifi-rt2x00-use-explicitly-signed-or-unsigned-types
+++ a/drivers/net/wireless/ralink/rt2x00/rt2800lib.h
@@ -32,10 +32,10 @@ struct rf_reg_pair {
struct rt2800_drv_data {
u8 calibration_bw20;
u8 calibration_bw40;
- char rx_calibration_bw20;
- char rx_calibration_bw40;
- char tx_calibration_bw20;
- char tx_calibration_bw40;
+ s8 rx_calibration_bw20;
+ s8 rx_calibration_bw40;
+ s8 tx_calibration_bw20;
+ s8 tx_calibration_bw40;
u8 bbp25;
u8 bbp26;
u8 txmixer_gain_24g;
--- a/drivers/net/wireless/ralink/rt2x00/rt2x00usb.c~wifi-rt2x00-use-explicitly-signed-or-unsigned-types
+++ a/drivers/net/wireless/ralink/rt2x00/rt2x00usb.c
@@ -117,12 +117,12 @@ int rt2x00usb_vendor_request_buff(struct
const u16 buffer_length)
{
int status = 0;
- unsigned char *tb;
+ u8 *tb;
u16 off, len, bsize;
mutex_lock(&rt2x00dev->csr_mutex);
- tb = (char *)buffer;
+ tb = (u8 *)buffer;
off = offset;
len = buffer_length;
while (len && !status) {
@@ -215,7 +215,7 @@ void rt2x00usb_register_read_async(struc
rd->cr.wLength = cpu_to_le16(sizeof(u32));
usb_fill_control_urb(urb, usb_dev, usb_rcvctrlpipe(usb_dev, 0),
- (unsigned char *)(&rd->cr), &rd->reg, sizeof(rd->reg),
+ (u8 *)(&rd->cr), &rd->reg, sizeof(rd->reg),
rt2x00usb_register_read_async_cb, rd);
usb_anchor_urb(urb, rt2x00dev->anchor);
if (usb_submit_urb(urb, GFP_ATOMIC) < 0) {
--- a/drivers/net/wireless/ralink/rt2x00/rt61pci.c~wifi-rt2x00-use-explicitly-signed-or-unsigned-types
+++ a/drivers/net/wireless/ralink/rt2x00/rt61pci.c
@@ -1709,7 +1709,7 @@ static int rt61pci_set_state(struct rt2x
{
u32 reg, reg2;
unsigned int i;
- char put_to_sleep;
+ bool put_to_sleep;
put_to_sleep = (state != STATE_AWAKE);
@@ -2656,7 +2656,7 @@ static int rt61pci_probe_hw_mode(struct
{
struct hw_mode_spec *spec = &rt2x00dev->spec;
struct channel_info *info;
- char *tx_power;
+ u8 *tx_power;
unsigned int i;
/*
--- a/drivers/net/wireless/ralink/rt2x00/rt61pci.h~wifi-rt2x00-use-explicitly-signed-or-unsigned-types
+++ a/drivers/net/wireless/ralink/rt2x00/rt61pci.h
@@ -1484,6 +1484,6 @@ struct hw_pairwise_ta_entry {
(((u8)(__txpower)) > MAX_TXPOWER) ? DEFAULT_TXPOWER : (__txpower)
#define TXPOWER_TO_DEV(__txpower) \
- clamp_t(char, __txpower, MIN_TXPOWER, MAX_TXPOWER)
+ clamp_t(u8, __txpower, MIN_TXPOWER, MAX_TXPOWER)
#endif /* RT61PCI_H */
--- a/drivers/net/wireless/ralink/rt2x00/rt73usb.c~wifi-rt2x00-use-explicitly-signed-or-unsigned-types
+++ a/drivers/net/wireless/ralink/rt2x00/rt73usb.c
@@ -1378,7 +1378,7 @@ static int rt73usb_set_state(struct rt2x
{
u32 reg, reg2;
unsigned int i;
- char put_to_sleep;
+ bool put_to_sleep;
put_to_sleep = (state != STATE_AWAKE);
@@ -2090,7 +2090,7 @@ static int rt73usb_probe_hw_mode(struct
{
struct hw_mode_spec *spec = &rt2x00dev->spec;
struct channel_info *info;
- char *tx_power;
+ u8 *tx_power;
unsigned int i;
/*
--- a/drivers/net/wireless/ralink/rt2x00/rt73usb.h~wifi-rt2x00-use-explicitly-signed-or-unsigned-types
+++ a/drivers/net/wireless/ralink/rt2x00/rt73usb.h
@@ -1063,6 +1063,6 @@ struct hw_pairwise_ta_entry {
(((u8)(__txpower)) > MAX_TXPOWER) ? DEFAULT_TXPOWER : (__txpower)
#define TXPOWER_TO_DEV(__txpower) \
- clamp_t(char, __txpower, MIN_TXPOWER, MAX_TXPOWER)
+ clamp_t(u8, __txpower, MIN_TXPOWER, MAX_TXPOWER)
#endif /* RT73USB_H */
_
Patches currently in -mm which might be from Jason@xxxxxxxxx are
minmax-sanity-check-constant-bounds-when-clamping.patch
minmax-clamp-more-efficiently-by-avoiding-extra-comparison.patch
wifi-rt2x00-use-explicitly-signed-or-unsigned-types.patch
