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Date: Tue, 11 Mar 2008 14:12:01 -0700
From: Harvey Harrison <harvey.harrison@...il.com>
To: Andrew Morton <akpm@...ux-foundation.org>
Cc: Michael Buesch <mb@...sch.de>, LKML <linux-kernel@...r.kernel.org>,
linux-wireless <linux-wireless@...r.kernel.org>
Subject: [PATCH 5/6] b43: use clamp_val macro instead of limit_value macro
Use the kernel-provided clamp_val macro as it is identical to the
b43-specific limit_value macro.
Signed-off-by: Harvey Harrison <harvey.harrison@...il.com>
---
drivers/net/wireless/b43/b43.h | 16 ----------------
drivers/net/wireless/b43/lo.c | 4 ++--
drivers/net/wireless/b43/main.c | 8 ++++----
drivers/net/wireless/b43/phy.c | 24 ++++++++++++------------
4 files changed, 18 insertions(+), 34 deletions(-)
diff --git a/drivers/net/wireless/b43/b43.h b/drivers/net/wireless/b43/b43.h
index f13346b..2ae3094 100644
--- a/drivers/net/wireless/b43/b43.h
+++ b/drivers/net/wireless/b43/b43.h
@@ -843,22 +843,6 @@ static inline bool __b43_warn_on_dummy(bool x) { return x; }
# define B43_WARN_ON(x) __b43_warn_on_dummy(unlikely(!!(x)))
#endif
-/** Limit a value between two limits */
-#ifdef limit_value
-# undef limit_value
-#endif
-#define limit_value(value, min, max) \
- ({ \
- typeof(value) __value = (value); \
- typeof(value) __min = (min); \
- typeof(value) __max = (max); \
- if (__value < __min) \
- __value = __min; \
- else if (__value > __max) \
- __value = __max; \
- __value; \
- })
-
/* Convert an integer to a Q5.2 value */
#define INT_TO_Q52(i) ((i) << 2)
/* Convert a Q5.2 value to an integer (precision loss!) */
diff --git a/drivers/net/wireless/b43/lo.c b/drivers/net/wireless/b43/lo.c
index d890f36..ee8d1b1 100644
--- a/drivers/net/wireless/b43/lo.c
+++ b/drivers/net/wireless/b43/lo.c
@@ -366,7 +366,7 @@ static void lo_measure_txctl_values(struct b43_wldev *dev)
if (lb_gain > 10) {
radio_pctl_reg = 0;
pga = abs(10 - lb_gain) / 6;
- pga = limit_value(pga, 0, 15);
+ pga = clamp_val(pga, 0, 15);
} else {
int cmp_val;
int tmp;
@@ -510,7 +510,7 @@ static void lo_measure_gain_values(struct b43_wldev *dev,
phy->lna_lod_gain = 1;
trsw_rx_gain -= 8;
}
- trsw_rx_gain = limit_value(trsw_rx_gain, 0, 0x2D);
+ trsw_rx_gain = clamp_val(trsw_rx_gain, 0, 0x2D);
phy->pga_gain = trsw_rx_gain / 3;
if (phy->pga_gain >= 5) {
phy->pga_gain -= 5;
diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c
index 51dfce1..a8d3f86 100644
--- a/drivers/net/wireless/b43/main.c
+++ b/drivers/net/wireless/b43/main.c
@@ -1052,10 +1052,10 @@ static void handle_irq_noise(struct b43_wldev *dev)
/* Get the noise samples. */
B43_WARN_ON(dev->noisecalc.nr_samples >= 8);
i = dev->noisecalc.nr_samples;
- noise[0] = limit_value(noise[0], 0, ARRAY_SIZE(phy->nrssi_lt) - 1);
- noise[1] = limit_value(noise[1], 0, ARRAY_SIZE(phy->nrssi_lt) - 1);
- noise[2] = limit_value(noise[2], 0, ARRAY_SIZE(phy->nrssi_lt) - 1);
- noise[3] = limit_value(noise[3], 0, ARRAY_SIZE(phy->nrssi_lt) - 1);
+ noise[0] = clamp_val(noise[0], 0, ARRAY_SIZE(phy->nrssi_lt) - 1);
+ noise[1] = clamp_val(noise[1], 0, ARRAY_SIZE(phy->nrssi_lt) - 1);
+ noise[2] = clamp_val(noise[2], 0, ARRAY_SIZE(phy->nrssi_lt) - 1);
+ noise[3] = clamp_val(noise[3], 0, ARRAY_SIZE(phy->nrssi_lt) - 1);
dev->noisecalc.samples[i][0] = phy->nrssi_lt[noise[0]];
dev->noisecalc.samples[i][1] = phy->nrssi_lt[noise[1]];
dev->noisecalc.samples[i][2] = phy->nrssi_lt[noise[2]];
diff --git a/drivers/net/wireless/b43/phy.c b/drivers/net/wireless/b43/phy.c
index 71507b2..bd8413f 100644
--- a/drivers/net/wireless/b43/phy.c
+++ b/drivers/net/wireless/b43/phy.c
@@ -1572,7 +1572,7 @@ static void b43_phy_initg(struct b43_wldev *dev)
* the value 0x7FFFFFFF here. I think that is some weird
* compiler optimization in the original driver.
* Essentially, what we do here is resetting all NRSSI LT
- * entries to -32 (see the limit_value() in nrssi_hw_update())
+ * entries to -32 (see the clamp_val() in nrssi_hw_update())
*/
b43_nrssi_hw_update(dev, 0xFFFF); //FIXME?
b43_calc_nrssi_threshold(dev);
@@ -1634,13 +1634,13 @@ static s8 b43_phy_estimate_power_out(struct b43_wldev *dev, s8 tssi)
switch (phy->type) {
case B43_PHYTYPE_A:
tmp += 0x80;
- tmp = limit_value(tmp, 0x00, 0xFF);
+ tmp = clamp_val(tmp, 0x00, 0xFF);
dbm = phy->tssi2dbm[tmp];
//TODO: There's a FIXME on the specs
break;
case B43_PHYTYPE_B:
case B43_PHYTYPE_G:
- tmp = limit_value(tmp, 0x00, 0x3F);
+ tmp = clamp_val(tmp, 0x00, 0x3F);
dbm = phy->tssi2dbm[tmp];
break;
default:
@@ -1699,8 +1699,8 @@ void b43_put_attenuation_into_ranges(struct b43_wldev *dev,
break;
}
- *_rfatt = limit_value(rfatt, rf_min, rf_max);
- *_bbatt = limit_value(bbatt, bb_min, bb_max);
+ *_rfatt = clamp_val(rfatt, rf_min, rf_max);
+ *_bbatt = clamp_val(bbatt, bb_min, bb_max);
}
/* http://bcm-specs.sipsolutions.net/RecalculateTransmissionPower */
@@ -1795,7 +1795,7 @@ void b43_phy_xmitpower(struct b43_wldev *dev)
/* Get desired power (in Q5.2) */
desired_pwr = INT_TO_Q52(phy->power_level);
/* And limit it. max_pwr already is Q5.2 */
- desired_pwr = limit_value(desired_pwr, 0, max_pwr);
+ desired_pwr = clamp_val(desired_pwr, 0, max_pwr);
if (b43_debug(dev, B43_DBG_XMITPOWER)) {
b43dbg(dev->wl,
"Current TX power output: " Q52_FMT
@@ -1908,7 +1908,7 @@ static inline
f = q;
i++;
} while (delta >= 2);
- entry[index] = limit_value(b43_tssi2dbm_ad(m1 * f, 8192), -127, 128);
+ entry[index] = clamp_val(b43_tssi2dbm_ad(m1 * f, 8192), -127, 128);
return 0;
}
@@ -2452,7 +2452,7 @@ void b43_nrssi_hw_update(struct b43_wldev *dev, u16 val)
for (i = 0; i < 64; i++) {
tmp = b43_nrssi_hw_read(dev, i);
tmp -= val;
- tmp = limit_value(tmp, -32, 31);
+ tmp = clamp_val(tmp, -32, 31);
b43_nrssi_hw_write(dev, i, tmp);
}
}
@@ -2469,7 +2469,7 @@ void b43_nrssi_mem_update(struct b43_wldev *dev)
tmp = (i - delta) * phy->nrssislope;
tmp /= 0x10000;
tmp += 0x3A;
- tmp = limit_value(tmp, 0, 0x3F);
+ tmp = clamp_val(tmp, 0, 0x3F);
phy->nrssi_lt[i] = tmp;
}
}
@@ -2906,7 +2906,7 @@ void b43_calc_nrssi_threshold(struct b43_wldev *dev)
} else
threshold = phy->nrssi[1] - 5;
- threshold = limit_value(threshold, 0, 0x3E);
+ threshold = clamp_val(threshold, 0, 0x3E);
b43_phy_read(dev, 0x0020); /* dummy read */
b43_phy_write(dev, 0x0020,
(((u16) threshold) << 8) | 0x001C);
@@ -2957,7 +2957,7 @@ void b43_calc_nrssi_threshold(struct b43_wldev *dev)
else
a += 32;
a = a >> 6;
- a = limit_value(a, -31, 31);
+ a = clamp_val(a, -31, 31);
b = b * (phy->nrssi[1] - phy->nrssi[0]);
b += (phy->nrssi[0] << 6);
@@ -2966,7 +2966,7 @@ void b43_calc_nrssi_threshold(struct b43_wldev *dev)
else
b += 32;
b = b >> 6;
- b = limit_value(b, -31, 31);
+ b = clamp_val(b, -31, 31);
tmp_u16 = b43_phy_read(dev, 0x048A) & 0xF000;
tmp_u16 |= ((u32) b & 0x0000003F);
--
1.5.4.4.592.g32d4c
--
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