b43legacy: replace limit_value macro with clamp_val

kernel-provided clamp_val is identical, delete the private limit_value helper.

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Cc: Michael Buesch <mb@bu3sch.de>
Cc: "John W. Linville" <linville@tuxdriver.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

4 files changed, 17 insertions, 34 deletions

diff --git a/drivers/net/wireless/b43legacy/b43legacy.h b/drivers/net/wireless/b43legacy/b43legacy.h
index ded3cd31b3df..c40078e1fff9 100644
--- a/drivers/net/wireless/b43legacy/b43legacy.h
+++ b/drivers/net/wireless/b43legacy/b43legacy.h
@@ -823,23 +823,6 @@ void b43legacydbg(struct b43legacy_wl *wl, const char *fmt, ...)
 # define b43legacydbg(wl, fmt...) do { /* nothing */ } while (0)
 #endif /* DEBUG */
 
-
-/** 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;                                \
-        })
-
 /* Macros for printing a value in Q5.2 format */
 #define Q52_FMT         "%u.%u"
 #define Q52_ARG(q52)    ((q52) / 4), (((q52) & 3) * 100 / 4)
diff --git a/drivers/net/wireless/b43legacy/main.c b/drivers/net/wireless/b43legacy/main.c
index 1ccc51e90a8e..d3820dce3c43 100644
--- a/drivers/net/wireless/b43legacy/main.c
+++ b/drivers/net/wireless/b43legacy/main.c
@@ -846,10 +846,10 @@ static void handle_irq_noise(struct b43legacy_wldev *dev)
         /* Get the noise samples. */
         B43legacy_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/b43legacy/phy.c b/drivers/net/wireless/b43legacy/phy.c
index 8e5c09b81871..768cccb9b1ba 100644
--- a/drivers/net/wireless/b43legacy/phy.c
+++ b/drivers/net/wireless/b43legacy/phy.c
@@ -1088,7 +1088,7 @@ static void b43legacy_phy_initg(struct b43legacy_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())
                  */
                 b43legacy_nrssi_hw_update(dev, 0xFFFF);
                 b43legacy_calc_nrssi_threshold(dev);
@@ -1756,7 +1756,7 @@ static s8 b43legacy_phy_estimate_power_out(struct b43legacy_wldev *dev, s8 tssi)
         switch (phy->type) {
         case B43legacy_PHYTYPE_B:
         case B43legacy_PHYTYPE_G:
-                tmp = limit_value(tmp, 0x00, 0x3F);
+                tmp = clamp_val(tmp, 0x00, 0x3F);
                 dbm = phy->tssi2dbm[tmp];
                 break;
         default:
@@ -1859,7 +1859,7 @@ void b43legacy_phy_xmitpower(struct b43legacy_wldev *dev)
 
         /* find the desired power in Q5.2 - power_level is in dBm
          * and limit it - max_pwr is already in Q5.2 */
-        desired_pwr = limit_value(phy->power_level << 2, 0, max_pwr);
+        desired_pwr = clamp_val(phy->power_level << 2, 0, max_pwr);
         if (b43legacy_debug(dev, B43legacy_DBG_XMITPOWER))
                 b43legacydbg(dev->wl, "Current TX power output: " Q52_FMT
                        " dBm, Desired TX power output: " Q52_FMT
@@ -1905,7 +1905,7 @@ void b43legacy_phy_xmitpower(struct b43legacy_wldev *dev)
                         radio_attenuation++;
                 }
         }
-        baseband_attenuation = limit_value(baseband_attenuation, 0, 11);
+        baseband_attenuation = clamp_val(baseband_attenuation, 0, 11);
 
         txpower = phy->txctl1;
         if ((phy->radio_ver == 0x2050) && (phy->radio_rev == 2)) {
@@ -1933,8 +1933,8 @@ void b43legacy_phy_xmitpower(struct b43legacy_wldev *dev)
         }
         /* Save the control values */
         phy->txctl1 = txpower;
-        baseband_attenuation = limit_value(baseband_attenuation, 0, 11);
-        radio_attenuation = limit_value(radio_attenuation, 0, 9);
+        baseband_attenuation = clamp_val(baseband_attenuation, 0, 11);
+        radio_attenuation = clamp_val(radio_attenuation, 0, 9);
         phy->rfatt = radio_attenuation;
         phy->bbatt = baseband_attenuation;
 
@@ -1979,7 +1979,7 @@ s8 b43legacy_tssi2dbm_entry(s8 entry [], u8 index, s16 pab0, s16 pab1, s16 pab2)
                 f = q;
                 i++;
         } while (delta >= 2);
-        entry[index] = limit_value(b43legacy_tssi2dbm_ad(m1 * f, 8192),
+        entry[index] = clamp_val(b43legacy_tssi2dbm_ad(m1 * f, 8192),
                                    -127, 128);
         return 0;
 }
diff --git a/drivers/net/wireless/b43legacy/radio.c b/drivers/net/wireless/b43legacy/radio.c
index 955832e8654f..2df545cfad14 100644
--- a/drivers/net/wireless/b43legacy/radio.c
+++ b/drivers/net/wireless/b43legacy/radio.c
@@ -357,7 +357,7 @@ void b43legacy_nrssi_hw_update(struct b43legacy_wldev *dev, u16 val)
         for (i = 0; i < 64; i++) {
                 tmp = b43legacy_nrssi_hw_read(dev, i);
                 tmp -= val;
-                tmp = limit_value(tmp, -32, 31);
+                tmp = clamp_val(tmp, -32, 31);
                 b43legacy_nrssi_hw_write(dev, i, tmp);
         }
 }
@@ -375,7 +375,7 @@ void b43legacy_nrssi_mem_update(struct b43legacy_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;
         }
 }
@@ -839,7 +839,7 @@ void b43legacy_calc_nrssi_threshold(struct b43legacy_wldev *dev)
                 } else
                         threshold = phy->nrssi[1] - 5;
 
-                threshold = limit_value(threshold, 0, 0x3E);
+                threshold = clamp_val(threshold, 0, 0x3E);
                 b43legacy_phy_read(dev, 0x0020); /* dummy read */
                 b43legacy_phy_write(dev, 0x0020, (((u16)threshold) << 8)
                                     | 0x001C);
@@ -892,7 +892,7 @@ void b43legacy_calc_nrssi_threshold(struct b43legacy_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);
@@ -901,7 +901,7 @@ void b43legacy_calc_nrssi_threshold(struct b43legacy_wldev *dev)
                         else
                                 b += 32;
                         b = b >> 6;
-                        b = limit_value(b, -31, 31);
+                        b = clamp_val(b, -31, 31);
 
                         tmp_u16 = b43legacy_phy_read(dev, 0x048A) & 0xF000;
                         tmp_u16 |= ((u32)b & 0x0000003F);
@@ -1905,7 +1905,7 @@ void b43legacy_radio_set_txpower_a(struct b43legacy_wldev *dev, u16 txpower)
         u16 dac;
         u16 ilt;
 
-        txpower = limit_value(txpower, 0, 63);
+        txpower = clamp_val(txpower, 0, 63);
 
         pamp = b43legacy_get_txgain_freq_power_amp(txpower);
         pamp <<= 5;