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helpers: new macro to CLAMP high threshold only

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Useful when clamping a unsigned integer with low threshold set to 0,
which would give us compiler warnings with -Wtype-limits when using
CLAMP(), e.g.:

  via/mm-broadband-modem-via.c: In function ‘handle_evdo_quality_change’:
  /usr/include/glib-2.0/glib/gmacros.h:811:63: error: comparison of unsigned expression < 0 is always false [-Werror=type-limits]
    811 | #define CLAMP(x, low, high)  (((x) > (high)) ? (high) : (((x) < (low)) ? (low) : (x)))
        |                                                               ^
  via/mm-broadband-modem-via.c:284:19: note: in expansion of macro ‘CLAMP’
    284 |         quality = CLAMP (quality, 0, 100);
        |                   ^~~~~
This commit is contained in:
Aleksander Morgado
2020-01-31 15:18:35 +01:00
parent b856f3625d
commit bbeabb495e
7 changed files with 28 additions and 26 deletions
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plugins/huawei/mm-broadband-modem-huawei.c
+7 -7
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@@ -1537,11 +1537,11 @@ huawei_signal_changed (MMPortSerialAt *port,
quality = 0;
} else {
/* Normalize the quality */
quality = CLAMP (quality, 0, 31) * 100 / 31;
quality = MM_CLAMP_HIGH (quality, 31) * 100 / 31;
}
mm_dbg ("3GPP signal quality: %u", quality);
mm_iface_modem_update_signal_quality (MM_IFACE_MODEM (self), (guint)quality);
mm_iface_modem_update_signal_quality (MM_IFACE_MODEM (self), quality);
}
static void
@@ -2373,9 +2373,9 @@ huawei_1x_signal_changed (MMPortSerialAt *port,
if (!mm_get_uint_from_match_info (match_info, 1, &quality))
return;
quality = CLAMP (quality, 0, 100);
quality = MM_CLAMP_HIGH (quality, 100);
mm_dbg ("1X signal quality: %u", quality);
mm_iface_modem_update_signal_quality (MM_IFACE_MODEM (self), (guint)quality);
mm_iface_modem_update_signal_quality (MM_IFACE_MODEM (self), quality);
}
static void
@@ -2388,9 +2388,9 @@ huawei_evdo_signal_changed (MMPortSerialAt *port,
if (!mm_get_uint_from_match_info (match_info, 1, &quality))
return;
quality = CLAMP (quality, 0, 100);
quality = MM_CLAMP_HIGH (quality, 100);
mm_dbg ("EVDO signal quality: %u", quality);
mm_iface_modem_update_signal_quality (MM_IFACE_MODEM (self), (guint)quality);
mm_iface_modem_update_signal_quality (MM_IFACE_MODEM (self), quality);
}
/* Signal quality loading (Modem interface) */
@@ -2459,7 +2459,7 @@ signal_ready (MMBaseModem *self,
buf[i++] = *response++;
if (mm_get_uint_from_str (buf, &quality)) {
quality = CLAMP (quality, 0, 100);
quality = MM_CLAMP_HIGH (quality, 100);
g_task_return_int (task, quality);
} else {
g_task_return_new_error (task,