x86: lindent arch/i386/math-emu

lindent these files:
                                       errors   lines of code   errors/KLOC
 arch/x86/math-emu/                      2236            9424         237.2
 arch/x86/math-emu/                       128            8706          14.7

no other changes. No code changed:

   text    data     bss     dec     hex filename
   5589802  612739 3833856 10036397         9924ad vmlinux.before
   5589802  612739 3833856 10036397         9924ad vmlinux.after

the intent of this patch is to ease the automated tracking of kernel
code quality - it's just much easier for us to maintain it if every file
in arch/x86 is supposed to be clean.

NOTE: it is a known problem of lindent that it causes some style damage
of its own, but it's a safe tool (well, except for the gcc array range
initializers extension), so we did the bulk of the changes via lindent,
and did the manual fixups in a followup patch.

the resulting math-emu code has been tested by Thomas Gleixner on a real
386 DX CPU as well, and it works fine.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

1 files changed, 166 insertions, 187 deletions

diff --git a/arch/x86/math-emu/poly_atan.c b/arch/x86/math-emu/poly_atan.c
index 82f702952f69..2f4ac8143fc3 100644
--- a/arch/x86/math-emu/poly_atan.c
+++ b/arch/x86/math-emu/poly_atan.c
@@ -18,28 +18,25 @@
 #include "control_w.h"
 #include "poly.h"
 
-
 #define	HIPOWERon	6	/* odd poly, negative terms */
-static const unsigned long long oddnegterms[HIPOWERon] =
-{
-  0x0000000000000000LL, /* Dummy (not for - 1.0) */
-  0x015328437f756467LL,
-  0x0005dda27b73dec6LL,
-  0x0000226bf2bfb91aLL,
-  0x000000ccc439c5f7LL,
-  0x0000000355438407LL
-} ;
+static const unsigned long long oddnegterms[HIPOWERon] = {
+	0x0000000000000000LL,	/* Dummy (not for - 1.0) */
+	0x015328437f756467LL,
+	0x0005dda27b73dec6LL,
+	0x0000226bf2bfb91aLL,
+	0x000000ccc439c5f7LL,
+	0x0000000355438407LL
+};
 
 #define	HIPOWERop	6	/* odd poly, positive terms */
-static const unsigned long long oddplterms[HIPOWERop] =
-{
+static const unsigned long long oddplterms[HIPOWERop] = {
 /*  0xaaaaaaaaaaaaaaabLL,  transferred to fixedpterm[] */
-  0x0db55a71875c9ac2LL,
-  0x0029fce2d67880b0LL,
-  0x0000dfd3908b4596LL,
-  0x00000550fd61dab4LL,
-  0x0000001c9422b3f9LL,
-  0x000000003e3301e1LL
+	0x0db55a71875c9ac2LL,
+	0x0029fce2d67880b0LL,
+	0x0000dfd3908b4596LL,
+	0x00000550fd61dab4LL,
+	0x0000001c9422b3f9LL,
+	0x000000003e3301e1LL
 };
 
 static const unsigned long long denomterm = 0xebd9b842c5c53a0eLL;
@@ -48,182 +45,164 @@ static const Xsig fixedpterm = MK_XSIG(0xaaaaaaaa, 0xaaaaaaaa, 0xaaaaaaaa);
 
 static const Xsig pi_signif = MK_XSIG(0xc90fdaa2, 0x2168c234, 0xc4c6628b);
 
-
 /*--- poly_atan() -----------------------------------------------------------+
  |                                                                           |
  +---------------------------------------------------------------------------*/
-void	poly_atan(FPU_REG *st0_ptr, u_char st0_tag,
-		  FPU_REG *st1_ptr, u_char st1_tag)
+void poly_atan(FPU_REG * st0_ptr, u_char st0_tag,
+	       FPU_REG * st1_ptr, u_char st1_tag)
 {
-  u_char	transformed, inverted,
-                sign1, sign2;
-  int           exponent;
-  long int   	dummy_exp;
-  Xsig          accumulator, Numer, Denom, accumulatore, argSignif,
-                argSq, argSqSq;
-  u_char        tag;
-  
-  sign1 = getsign(st0_ptr);
-  sign2 = getsign(st1_ptr);
-  if ( st0_tag == TAG_Valid )
-    {
-      exponent = exponent(st0_ptr);
-    }
-  else
-    {
-      /* This gives non-compatible stack contents... */
-      FPU_to_exp16(st0_ptr, st0_ptr);
-      exponent = exponent16(st0_ptr);
-    }
-  if ( st1_tag == TAG_Valid )
-    {
-      exponent -= exponent(st1_ptr);
-    }
-  else
-    {
-      /* This gives non-compatible stack contents... */
-      FPU_to_exp16(st1_ptr, st1_ptr);
-      exponent -= exponent16(st1_ptr);
-    }
-
-  if ( (exponent < 0) || ((exponent == 0) &&
-			  ((st0_ptr->sigh < st1_ptr->sigh) ||
-			   ((st0_ptr->sigh == st1_ptr->sigh) &&
-			    (st0_ptr->sigl < st1_ptr->sigl))) ) )
-    {
-      inverted = 1;
-      Numer.lsw = Denom.lsw = 0;
-      XSIG_LL(Numer) = significand(st0_ptr);
-      XSIG_LL(Denom) = significand(st1_ptr);
-    }
-  else
-    {
-      inverted = 0;
-      exponent = -exponent;
-      Numer.lsw = Denom.lsw = 0;
-      XSIG_LL(Numer) = significand(st1_ptr);
-      XSIG_LL(Denom) = significand(st0_ptr);
-     }
-  div_Xsig(&Numer, &Denom, &argSignif);
-  exponent += norm_Xsig(&argSignif);
-
-  if ( (exponent >= -1)
-      || ((exponent == -2) && (argSignif.msw > 0xd413ccd0)) )
-    {
-      /* The argument is greater than sqrt(2)-1 (=0.414213562...) */
-      /* Convert the argument by an identity for atan */
-      transformed = 1;
-
-      if ( exponent >= 0 )
-	{
+	u_char transformed, inverted, sign1, sign2;
+	int exponent;
+	long int dummy_exp;
+	Xsig accumulator, Numer, Denom, accumulatore, argSignif, argSq, argSqSq;
+	u_char tag;
+
+	sign1 = getsign(st0_ptr);
+	sign2 = getsign(st1_ptr);
+	if (st0_tag == TAG_Valid) {
+		exponent = exponent(st0_ptr);
+	} else {
+		/* This gives non-compatible stack contents... */
+		FPU_to_exp16(st0_ptr, st0_ptr);
+		exponent = exponent16(st0_ptr);
+	}
+	if (st1_tag == TAG_Valid) {
+		exponent -= exponent(st1_ptr);
+	} else {
+		/* This gives non-compatible stack contents... */
+		FPU_to_exp16(st1_ptr, st1_ptr);
+		exponent -= exponent16(st1_ptr);
+	}
+
+	if ((exponent < 0) || ((exponent == 0) &&
+			       ((st0_ptr->sigh < st1_ptr->sigh) ||
+				((st0_ptr->sigh == st1_ptr->sigh) &&
+				 (st0_ptr->sigl < st1_ptr->sigl))))) {
+		inverted = 1;
+		Numer.lsw = Denom.lsw = 0;
+		XSIG_LL(Numer) = significand(st0_ptr);
+		XSIG_LL(Denom) = significand(st1_ptr);
+	} else {
+		inverted = 0;
+		exponent = -exponent;
+		Numer.lsw = Denom.lsw = 0;
+		XSIG_LL(Numer) = significand(st1_ptr);
+		XSIG_LL(Denom) = significand(st0_ptr);
+	}
+	div_Xsig(&Numer, &Denom, &argSignif);
+	exponent += norm_Xsig(&argSignif);
+
+	if ((exponent >= -1)
+	    || ((exponent == -2) && (argSignif.msw > 0xd413ccd0))) {
+		/* The argument is greater than sqrt(2)-1 (=0.414213562...) */
+		/* Convert the argument by an identity for atan */
+		transformed = 1;
+
+		if (exponent >= 0) {
 #ifdef PARANOID
-	  if ( !( (exponent == 0) && 
-		 (argSignif.lsw == 0) && (argSignif.midw == 0) &&
-		 (argSignif.msw == 0x80000000) ) )
-	    {
-	      EXCEPTION(EX_INTERNAL|0x104);  /* There must be a logic error */
-	      return;
-	    }
+			if (!((exponent == 0) &&
+			      (argSignif.lsw == 0) && (argSignif.midw == 0) &&
+			      (argSignif.msw == 0x80000000))) {
+				EXCEPTION(EX_INTERNAL | 0x104);	/* There must be a logic error */
+				return;
+			}
 #endif /* PARANOID */
-	  argSignif.msw = 0;   /* Make the transformed arg -> 0.0 */
+			argSignif.msw = 0;	/* Make the transformed arg -> 0.0 */
+		} else {
+			Numer.lsw = Denom.lsw = argSignif.lsw;
+			XSIG_LL(Numer) = XSIG_LL(Denom) = XSIG_LL(argSignif);
+
+			if (exponent < -1)
+				shr_Xsig(&Numer, -1 - exponent);
+			negate_Xsig(&Numer);
+
+			shr_Xsig(&Denom, -exponent);
+			Denom.msw |= 0x80000000;
+
+			div_Xsig(&Numer, &Denom, &argSignif);
+
+			exponent = -1 + norm_Xsig(&argSignif);
+		}
+	} else {
+		transformed = 0;
+	}
+
+	argSq.lsw = argSignif.lsw;
+	argSq.midw = argSignif.midw;
+	argSq.msw = argSignif.msw;
+	mul_Xsig_Xsig(&argSq, &argSq);
+
+	argSqSq.lsw = argSq.lsw;
+	argSqSq.midw = argSq.midw;
+	argSqSq.msw = argSq.msw;
+	mul_Xsig_Xsig(&argSqSq, &argSqSq);
+
+	accumulatore.lsw = argSq.lsw;
+	XSIG_LL(accumulatore) = XSIG_LL(argSq);
+
+	shr_Xsig(&argSq, 2 * (-1 - exponent - 1));
+	shr_Xsig(&argSqSq, 4 * (-1 - exponent - 1));
+
+	/* Now have argSq etc with binary point at the left
+	   .1xxxxxxxx */
+
+	/* Do the basic fixed point polynomial evaluation */
+	accumulator.msw = accumulator.midw = accumulator.lsw = 0;
+	polynomial_Xsig(&accumulator, &XSIG_LL(argSqSq),
+			oddplterms, HIPOWERop - 1);
+	mul64_Xsig(&accumulator, &XSIG_LL(argSq));
+	negate_Xsig(&accumulator);
+	polynomial_Xsig(&accumulator, &XSIG_LL(argSqSq), oddnegterms,
+			HIPOWERon - 1);
+	negate_Xsig(&accumulator);
+	add_two_Xsig(&accumulator, &fixedpterm, &dummy_exp);
+
+	mul64_Xsig(&accumulatore, &denomterm);
+	shr_Xsig(&accumulatore, 1 + 2 * (-1 - exponent));
+	accumulatore.msw |= 0x80000000;
+
+	div_Xsig(&accumulator, &accumulatore, &accumulator);
+
+	mul_Xsig_Xsig(&accumulator, &argSignif);
+	mul_Xsig_Xsig(&accumulator, &argSq);
+
+	shr_Xsig(&accumulator, 3);
+	negate_Xsig(&accumulator);
+	add_Xsig_Xsig(&accumulator, &argSignif);
+
+	if (transformed) {
+		/* compute pi/4 - accumulator */
+		shr_Xsig(&accumulator, -1 - exponent);
+		negate_Xsig(&accumulator);
+		add_Xsig_Xsig(&accumulator, &pi_signif);
+		exponent = -1;
+	}
+
+	if (inverted) {
+		/* compute pi/2 - accumulator */
+		shr_Xsig(&accumulator, -exponent);
+		negate_Xsig(&accumulator);
+		add_Xsig_Xsig(&accumulator, &pi_signif);
+		exponent = 0;
 	}
-      else
-	{
-	  Numer.lsw = Denom.lsw = argSignif.lsw;
-	  XSIG_LL(Numer) = XSIG_LL(Denom) = XSIG_LL(argSignif);
-
-	  if ( exponent < -1 )
-	    shr_Xsig(&Numer, -1-exponent);
-	  negate_Xsig(&Numer);
-      
-	  shr_Xsig(&Denom, -exponent);
-	  Denom.msw |= 0x80000000;
-      
-	  div_Xsig(&Numer, &Denom, &argSignif);
-
-	  exponent = -1 + norm_Xsig(&argSignif);
+
+	if (sign1) {
+		/* compute pi - accumulator */
+		shr_Xsig(&accumulator, 1 - exponent);
+		negate_Xsig(&accumulator);
+		add_Xsig_Xsig(&accumulator, &pi_signif);
+		exponent = 1;
 	}
-    }
-  else
-    {
-      transformed = 0;
-    }
-
-  argSq.lsw = argSignif.lsw; argSq.midw = argSignif.midw;
-  argSq.msw = argSignif.msw;
-  mul_Xsig_Xsig(&argSq, &argSq);
-  
-  argSqSq.lsw = argSq.lsw; argSqSq.midw = argSq.midw; argSqSq.msw = argSq.msw;
-  mul_Xsig_Xsig(&argSqSq, &argSqSq);
-
-  accumulatore.lsw = argSq.lsw;
-  XSIG_LL(accumulatore) = XSIG_LL(argSq);
-
-  shr_Xsig(&argSq, 2*(-1-exponent-1));
-  shr_Xsig(&argSqSq, 4*(-1-exponent-1));
-
-  /* Now have argSq etc with binary point at the left
-     .1xxxxxxxx */
-
-  /* Do the basic fixed point polynomial evaluation */
-  accumulator.msw = accumulator.midw = accumulator.lsw = 0;
-  polynomial_Xsig(&accumulator, &XSIG_LL(argSqSq),
-		   oddplterms, HIPOWERop-1);
-  mul64_Xsig(&accumulator, &XSIG_LL(argSq));
-  negate_Xsig(&accumulator);
-  polynomial_Xsig(&accumulator, &XSIG_LL(argSqSq), oddnegterms, HIPOWERon-1);
-  negate_Xsig(&accumulator);
-  add_two_Xsig(&accumulator, &fixedpterm, &dummy_exp);
-
-  mul64_Xsig(&accumulatore, &denomterm);
-  shr_Xsig(&accumulatore, 1 + 2*(-1-exponent));
-  accumulatore.msw |= 0x80000000;
-
-  div_Xsig(&accumulator, &accumulatore, &accumulator);
-
-  mul_Xsig_Xsig(&accumulator, &argSignif);
-  mul_Xsig_Xsig(&accumulator, &argSq);
-
-  shr_Xsig(&accumulator, 3);
-  negate_Xsig(&accumulator);
-  add_Xsig_Xsig(&accumulator, &argSignif);
-
-  if ( transformed )
-    {
-      /* compute pi/4 - accumulator */
-      shr_Xsig(&accumulator, -1-exponent);
-      negate_Xsig(&accumulator);
-      add_Xsig_Xsig(&accumulator, &pi_signif);
-      exponent = -1;
-    }
-
-  if ( inverted )
-    {
-      /* compute pi/2 - accumulator */
-      shr_Xsig(&accumulator, -exponent);
-      negate_Xsig(&accumulator);
-      add_Xsig_Xsig(&accumulator, &pi_signif);
-      exponent = 0;
-    }
-
-  if ( sign1 )
-    {
-      /* compute pi - accumulator */
-      shr_Xsig(&accumulator, 1 - exponent);
-      negate_Xsig(&accumulator);
-      add_Xsig_Xsig(&accumulator, &pi_signif);
-      exponent = 1;
-    }
-
-  exponent += round_Xsig(&accumulator);
-
-  significand(st1_ptr) = XSIG_LL(accumulator);
-  setexponent16(st1_ptr, exponent);
-
-  tag = FPU_round(st1_ptr, 1, 0, FULL_PRECISION, sign2);
-  FPU_settagi(1, tag);
-
-  set_precision_flag_up();  /* We do not really know if up or down,
-			       use this as the default. */
+
+	exponent += round_Xsig(&accumulator);
+
+	significand(st1_ptr) = XSIG_LL(accumulator);
+	setexponent16(st1_ptr, exponent);
+
+	tag = FPU_round(st1_ptr, 1, 0, FULL_PRECISION, sign2);
+	FPU_settagi(1, tag);
+
+	set_precision_flag_up();	/* We do not really know if up or down,
+					   use this as the default. */
 
 }