diff options
| -rw-r--r-- | drivers/iio/industrialio-core.c | 9 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/dvm/calib.c | 2 | ||||
| -rw-r--r-- | include/linux/kernel.h | 36 |
3 files changed, 23 insertions, 24 deletions
diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c index 7ede941e9301..131b434af994 100644 --- a/drivers/iio/industrialio-core.c +++ b/drivers/iio/industrialio-core.c @@ -433,16 +433,15 @@ ssize_t iio_format_value(char *buf, unsigned int type, int size, int *vals) scale_db = true; case IIO_VAL_INT_PLUS_MICRO: if (vals[1] < 0) - return sprintf(buf, "-%ld.%06u%s\n", abs(vals[0]), - -vals[1], - scale_db ? " dB" : ""); + return sprintf(buf, "-%d.%06u%s\n", abs(vals[0]), + -vals[1], scale_db ? " dB" : ""); else return sprintf(buf, "%d.%06u%s\n", vals[0], vals[1], scale_db ? " dB" : ""); case IIO_VAL_INT_PLUS_NANO: if (vals[1] < 0) - return sprintf(buf, "-%ld.%09u\n", abs(vals[0]), - -vals[1]); + return sprintf(buf, "-%d.%09u\n", abs(vals[0]), + -vals[1]); else return sprintf(buf, "%d.%09u\n", vals[0], vals[1]); case IIO_VAL_FRACTIONAL: diff --git a/drivers/net/wireless/iwlwifi/dvm/calib.c b/drivers/net/wireless/iwlwifi/dvm/calib.c index 20e6aa910700..c148085742a0 100644 --- a/drivers/net/wireless/iwlwifi/dvm/calib.c +++ b/drivers/net/wireless/iwlwifi/dvm/calib.c @@ -901,7 +901,7 @@ static void iwlagn_gain_computation(struct iwl_priv *priv, /* bound gain by 2 bits value max, 3rd bit is sign */ data->delta_gain_code[i] = min(abs(delta_g), - (long) CHAIN_NOISE_MAX_DELTA_GAIN_CODE); + (s32) CHAIN_NOISE_MAX_DELTA_GAIN_CODE); if (delta_g < 0) /* diff --git a/include/linux/kernel.h b/include/linux/kernel.h index 924853d33a13..e571e592e53a 100644 --- a/include/linux/kernel.h +++ b/include/linux/kernel.h @@ -202,26 +202,26 @@ extern int _cond_resched(void); /** * abs - return absolute value of an argument - * @x: the value. If it is unsigned type, it is converted to signed type first - * (s64, long or int depending on its size). + * @x: the value. If it is unsigned type, it is converted to signed type first. + * char is treated as if it was signed (regardless of whether it really is) + * but the macro's return type is preserved as char. * - * Return: an absolute value of x. If x is 64-bit, macro's return type is s64, - * otherwise it is signed long. + * Return: an absolute value of x. */ -#define abs(x) __builtin_choose_expr(sizeof(x) == sizeof(s64), ({ \ - s64 __x = (x); \ - (__x < 0) ? -__x : __x; \ - }), ({ \ - long ret; \ - if (sizeof(x) == sizeof(long)) { \ - long __x = (x); \ - ret = (__x < 0) ? -__x : __x; \ - } else { \ - int __x = (x); \ - ret = (__x < 0) ? -__x : __x; \ - } \ - ret; \ - })) +#define abs(x) __abs_choose_expr(x, long long, \ + __abs_choose_expr(x, long, \ + __abs_choose_expr(x, int, \ + __abs_choose_expr(x, short, \ + __abs_choose_expr(x, char, \ + __builtin_choose_expr( \ + __builtin_types_compatible_p(typeof(x), char), \ + (char)({ signed char __x = (x); __x<0?-__x:__x; }), \ + ((void)0))))))) + +#define __abs_choose_expr(x, type, other) __builtin_choose_expr( \ + __builtin_types_compatible_p(typeof(x), signed type) || \ + __builtin_types_compatible_p(typeof(x), unsigned type), \ + ({ signed type __x = (x); __x < 0 ? -__x : __x; }), other) /** * reciprocal_scale - "scale" a value into range [0, ep_ro) |