Merge 3.1-rc4 into staging-next

This resolves a conflict with:
	drivers/staging/brcm80211/brcmsmac/types.h

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 93 insertions, 79 deletions

diff --git a/drivers/staging/brcm80211/brcmsmac/phy/phy_qmath.c b/drivers/staging/brcm80211/brcmsmac/phy/phy_qmath.c
index 01ff0c8eb4b9..faf1ebe76068 100644
--- a/drivers/staging/brcm80211/brcmsmac/phy/phy_qmath.c
+++ b/drivers/staging/brcm80211/brcmsmac/phy/phy_qmath.c
@@ -17,89 +17,95 @@
 #include "phy_qmath.h"
 
 /*
-Description: This function make 16 bit unsigned multiplication. To fit the output into
-16 bits the 32 bit multiplication result is right shifted by 16 bits.
-*/
+ * Description: This function make 16 bit unsigned multiplication.
+ * To fit the output into 16 bits the 32 bit multiplication result is right
+ * shifted by 16 bits.
+ */
 u16 qm_mulu16(u16 op1, u16 op2)
 {
 	return (u16) (((u32) op1 * (u32) op2) >> 16);
 }
 
 /*
-Description: This function make 16 bit multiplication and return the result in 16 bits.
-To fit the multiplication result into 16 bits the multiplication result is right shifted by
-15 bits. Right shifting 15 bits instead of 16 bits is done to remove the extra sign bit formed
-due to the multiplication.
-When both the 16bit inputs are 0x8000 then the output is saturated to 0x7fffffff.
-*/
+ * Description: This function make 16 bit multiplication and return the result
+ * in 16 bits. To fit the multiplication result into 16 bits the multiplication
+ * result is right shifted by 15 bits. Right shifting 15 bits instead of 16 bits
+ * is done to remove the extra sign bit formed due to the multiplication.
+ * When both the 16bit inputs are 0x8000 then the output is saturated to
+ * 0x7fffffff.
+ */
 s16 qm_muls16(s16 op1, s16 op2)
 {
 	s32 result;
-	if (op1 == (s16) 0x8000 && op2 == (s16) 0x8000) {
+	if (op1 == (s16) 0x8000 && op2 == (s16) 0x8000)
 		result = 0x7fffffff;
-	} else {
+	else
 		result = ((s32) (op1) * (s32) (op2));
-	}
+
 	return (s16) (result >> 15);
 }
 
 /*
-Description: This function add two 32 bit numbers and return the 32bit result.
-If the result overflow 32 bits, the output will be saturated to 32bits.
-*/
+ * Description: This function add two 32 bit numbers and return the 32bit
+ * result. If the result overflow 32 bits, the output will be saturated to
+ * 32bits.
+ */
 s32 qm_add32(s32 op1, s32 op2)
 {
 	s32 result;
 	result = op1 + op2;
-	if (op1 < 0 && op2 < 0 && result > 0) {
+	if (op1 < 0 && op2 < 0 && result > 0)
 		result = 0x80000000;
-	} else if (op1 > 0 && op2 > 0 && result < 0) {
+	else if (op1 > 0 && op2 > 0 && result < 0)
 		result = 0x7fffffff;
-	}
+
 	return result;
 }
 
 /*
-Description: This function add two 16 bit numbers and return the 16bit result.
-If the result overflow 16 bits, the output will be saturated to 16bits.
-*/
+ * Description: This function add two 16 bit numbers and return the 16bit
+ * result. If the result overflow 16 bits, the output will be saturated to
+ * 16bits.
+ */
 s16 qm_add16(s16 op1, s16 op2)
 {
 	s16 result;
 	s32 temp = (s32) op1 + (s32) op2;
-	if (temp > (s32) 0x7fff) {
+	if (temp > (s32) 0x7fff)
 		result = (s16) 0x7fff;
-	} else if (temp < (s32) 0xffff8000) {
+	else if (temp < (s32) 0xffff8000)
 		result = (s16) 0xffff8000;
-	} else {
+	else
 		result = (s16) temp;
-	}
+
 	return result;
 }
 
 /*
-Description: This function make 16 bit subtraction and return the 16bit result.
-If the result overflow 16 bits, the output will be saturated to 16bits.
-*/
+ * Description: This function make 16 bit subtraction and return the 16bit
+ * result. If the result overflow 16 bits, the output will be saturated to
+ * 16bits.
+ */
 s16 qm_sub16(s16 op1, s16 op2)
 {
 	s16 result;
 	s32 temp = (s32) op1 - (s32) op2;
-	if (temp > (s32) 0x7fff) {
+	if (temp > (s32) 0x7fff)
 		result = (s16) 0x7fff;
-	} else if (temp < (s32) 0xffff8000) {
+	else if (temp < (s32) 0xffff8000)
 		result = (s16) 0xffff8000;
-	} else {
+	else
 		result = (s16) temp;
-	}
+
 	return result;
 }
 
 /*
-Description: This function make a 32 bit saturated left shift when the specified shift
-is +ve. This function will make a 32 bit right shift when the specified shift is -ve.
-This function return the result after shifting operation.
-*/
+ * Description: This function make a 32 bit saturated left shift when the
+ * specified shift is +ve. This function will make a 32 bit right shift when
+ * the specified shift is -ve. This function return the result after shifting
+ * operation.
+ */
 s32 qm_shl32(s32 op, int shift)
 {
 	int i;
@@ -110,20 +116,21 @@ s32 qm_shl32(s32 op, int shift)
 	else if (shift < -31)
 		shift = -31;
 	if (shift >= 0) {
-		for (i = 0; i < shift; i++) {
+		for (i = 0; i < shift; i++)
 			result = qm_add32(result, result);
-		}
 	} else {
 		result = result >> (-shift);
 	}
+
 	return result;
 }
 
 /*
-Description: This function make a 16 bit saturated left shift when the specified shift
-is +ve. This function will make a 16 bit right shift when the specified shift is -ve.
-This function return the result after shifting operation.
-*/
+ * Description: This function make a 16 bit saturated left shift when the
+ * specified shift is +ve. This function will make a 16 bit right shift when
+ * the specified shift is -ve. This function return the result after shifting
+ * operation.
+ */
 s16 qm_shl16(s16 op, int shift)
 {
 	int i;
@@ -134,29 +141,29 @@ s16 qm_shl16(s16 op, int shift)
 	else if (shift < -15)
 		shift = -15;
 	if (shift > 0) {
-		for (i = 0; i < shift; i++) {
+		for (i = 0; i < shift; i++)
 			result = qm_add16(result, result);
-		}
 	} else {
 		result = result >> (-shift);
 	}
+
 	return result;
 }
 
 /*
-Description: This function make a 16 bit right shift when shift is +ve.
-This function make a 16 bit saturated left shift when shift is -ve. This function
-return the result of the shift operation.
-*/
+ * Description: This function make a 16 bit right shift when shift is +ve.
+ * This function make a 16 bit saturated left shift when shift is -ve. This
+ * function return the result of the shift operation.
+ */
 s16 qm_shr16(s16 op, int shift)
 {
 	return qm_shl16(op, -shift);
 }
 
 /*
-Description: This function return the number of redundant sign bits in a 32 bit number.
-Example: qm_norm32(0x00000080) = 23
-*/
+ * Description: This function return the number of redundant sign bits in a
+ * 32 bit number. Example: qm_norm32(0x00000080) = 23
+ */
 s16 qm_norm32(s32 op)
 {
 	u16 u16extraSignBits;
@@ -208,28 +215,30 @@ static const s16 log_table[] = {
 	32024
 };
 
-#define LOG_TABLE_SIZE 32	/* log_table size */
-#define LOG2_LOG_TABLE_SIZE 5	/* log2(log_table size) */
-#define Q_LOG_TABLE 15		/* qformat of log_table */
-#define LOG10_2		19728	/* log10(2) in q.16 */
+#define LOG_TABLE_SIZE 32       /* log_table size */
+#define LOG2_LOG_TABLE_SIZE 5   /* log2(log_table size) */
+#define Q_LOG_TABLE 15          /* qformat of log_table */
+#define LOG10_2         19728   /* log10(2) in q.16 */
 
 /*
-Description:
-This routine takes the input number N and its q format qN and compute
-the log10(N). This routine first normalizes the input no N.	Then N is in mag*(2^x) format.
-mag is any number in the range 2^30-(2^31 - 1). Then log2(mag * 2^x) = log2(mag) + x is computed.
-From that log10(mag * 2^x) = log2(mag * 2^x) * log10(2) is computed.
-This routine looks the log2 value in the table considering LOG2_LOG_TABLE_SIZE+1 MSBs.
-As the MSB is always 1, only next LOG2_OF_LOG_TABLE_SIZE MSBs are used for table lookup.
-Next 16 MSBs are used for interpolation.
-Inputs:
-N - number to which log10 has to be found.
-qN - q format of N
-log10N - address where log10(N) will be written.
-qLog10N - address where log10N qformat will be written.
-Note/Problem:
-For accurate results input should be in normalized or near normalized form.
-*/
+ * Description:
+ * This routine takes the input number N and its q format qN and compute
+ * the log10(N). This routine first normalizes the input no N.	Then N is in
+ * mag*(2^x) format. mag is any number in the range 2^30-(2^31 - 1).
+ * Then log2(mag * 2^x) = log2(mag) + x is computed. From that
+ * log10(mag * 2^x) = log2(mag * 2^x) * log10(2) is computed.
+ * This routine looks the log2 value in the table considering
+ * LOG2_LOG_TABLE_SIZE+1 MSBs. As the MSB is always 1, only next
+ * LOG2_OF_LOG_TABLE_SIZE MSBs are used for table lookup. Next 16 MSBs are used
+ * for interpolation.
+ * Inputs:
+ * N - number to which log10 has to be found.
+ * qN - q format of N
+ * log10N - address where log10(N) will be written.
+ * qLog10N - address where log10N qformat will be written.
+ * Note/Problem:
+ * For accurate results input should be in normalized or near normalized form.
+ */
 void qm_log10(s32 N, s16 qN, s16 *log10N, s16 *qLog10N)
 {
 	s16 s16norm, s16tableIndex, s16errorApproximation;
@@ -248,12 +257,13 @@ void qm_log10(s32 N, s16 qN, s16 *log10N, s16 *qLog10N)
 	 */
 	qN = qN + s16norm - 30;
 
-	/* take the table index as the LOG2_OF_LOG_TABLE_SIZE bits right of the MSB */
+	/* take the table index as the LOG2_OF_LOG_TABLE_SIZE bits right of the
+	 * MSB */
 	s16tableIndex = (s16) (N >> (32 - (2 + LOG2_LOG_TABLE_SIZE)));
 
 	/* remove the MSB. the MSB is always 1 after normalization. */
 	s16tableIndex =
-	    s16tableIndex & (s16) ((1 << LOG2_LOG_TABLE_SIZE) - 1);
+		s16tableIndex & (s16) ((1 << LOG2_LOG_TABLE_SIZE) - 1);
 
 	/* remove the (1+LOG2_OF_LOG_TABLE_SIZE) MSBs in the N. */
 	N = N & ((1 << (32 - (2 + LOG2_LOG_TABLE_SIZE))) - 1);
@@ -263,23 +273,27 @@ void qm_log10(s32 N, s16 qN, s16 *log10N, s16 *qLog10N)
 	u16offset = (u16) (N >> (32 - (2 + LOG2_LOG_TABLE_SIZE + 16)));
 
 	/* look the log value in the table. */
-	s32log = log_table[s16tableIndex];	/* q.15 format */
+	s32log = log_table[s16tableIndex];      /* q.15 format */
 
-	/* interpolate using the offset. */
-	s16errorApproximation = (s16) qm_mulu16(u16offset, (u16) (log_table[s16tableIndex + 1] - log_table[s16tableIndex]));	/* q.15 */
+	/* interpolate using the offset. q.15 format. */
+	s16errorApproximation = (s16) qm_mulu16(u16offset,
+				(u16) (log_table[s16tableIndex + 1] -
+				       log_table[s16tableIndex]));
 
-	s32log = qm_add16((s16) s32log, s16errorApproximation);	/* q.15 format */
+	 /* q.15 format */
+	s32log = qm_add16((s16) s32log, s16errorApproximation);
 
 	/* adjust for the qformat of the N as
 	 * log2(mag * 2^x) = log2(mag) + x
 	 */
-	s32log = qm_add32(s32log, ((s32) -qN) << 15);	/* q.15 format */
+	s32log = qm_add32(s32log, ((s32) -qN) << 15);   /* q.15 format */
 
 	/* normalize the result. */
 	s16norm = qm_norm32(s32log);
 
 	/* bring all the important bits into lower 16 bits */
-	s32log = qm_shl32(s32log, s16norm - 16);	/* q.15+s16norm-16 format */
+	/* q.15+s16norm-16 format */
+	s32log = qm_shl32(s32log, s16norm - 16);
 
 	/* compute the log10(N) by multiplying log2(N) with log10(2).
 	 * as log10(mag * 2^x) = log2(mag * 2^x) * log10(2)