x86: Clean up mtrr/state.c

Fix:

  WARNING: Use #include <linux/io.h> instead of <asm/io.h>
  WARNING: line over 80 characters X 4

arch/x86/kernel/cpu/mtrr/state.o:

   text	   data	    bss	    dec	    hex	filename
    864	      0	      0	    864	    360	state.o.before
    864	      0	      0	    864	    360	state.o.after

md5:
   c5c4364b9aeac74d70111e1e49667a2c  state.o.before.asm
   c5c4364b9aeac74d70111e1e49667a2c  state.o.after.asm

Suggested-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Yinghai Lu <yinghai@kernel.org>
LKML-Reference: <20090703164225.GA21447@elte.hu>
[ More cleanups ]
Signed-off-by: Ingo Molnar <mingo@elte.hu>

diff --git a/arch/x86/kernel/cpu/mtrr/state.c b/arch/x86/kernel/cpu/mtrr/state.c
index 1f5fb1588d1fb4df0bbaefc4196b23a6056140aa..dfc80b4e6b0db79d8499600a486f926ad36afb5f 100644 (file)
--- a/arch/x86/kernel/cpu/mtrr/state.c
+++ b/arch/x86/kernel/cpu/mtrr/state.c
@@ -1,24 +1,25 @@
-#include <linux/mm.h>
 #include <linux/init.h>
-#include <asm/io.h>
-#include <asm/mtrr.h>
-#include <asm/msr.h>
+#include <linux/io.h>
+#include <linux/mm.h>
+
 #include <asm/processor-cyrix.h>
 #include <asm/processor-flags.h>
-#include "mtrr.h"
+#include <asm/mtrr.h>
+#include <asm/msr.h>
 
+#include "mtrr.h"
 
-/*  Put the processor into a state where MTRRs can be safely set  */
+/* Put the processor into a state where MTRRs can be safely set */
 void set_mtrr_prepare_save(struct set_mtrr_context *ctxt)
 {
        unsigned int cr0;
 
-       /*  Disable interrupts locally  */
+       /* Disable interrupts locally */
        local_irq_save(ctxt->flags);
 
        if (use_intel() || is_cpu(CYRIX)) {
 
-               /*  Save value of CR4 and clear Page Global Enable (bit 7)  */
+               /* Save value of CR4 and clear Page Global Enable (bit 7) */
                if (cpu_has_pge) {
                        ctxt->cr4val = read_cr4();
                        write_cr4(ctxt->cr4val & ~X86_CR4_PGE);
@@ -33,50 +34,61 @@ void set_mtrr_prepare_save(struct set_mtrr_context *ctxt)
                write_cr0(cr0);
                wbinvd();
 
-               if (use_intel())
-                       /*  Save MTRR state */
+               if (use_intel()) {
+                       /* Save MTRR state */
                        rdmsr(MSR_MTRRdefType, ctxt->deftype_lo, ctxt->deftype_hi);
-               else
-                       /* Cyrix ARRs - everything else were excluded at the top */
+               } else {
+                       /*
+                        * Cyrix ARRs -
+                        * everything else were excluded at the top
+                        */
                        ctxt->ccr3 = getCx86(CX86_CCR3);
+               }
        }
 }
 
 void set_mtrr_cache_disable(struct set_mtrr_context *ctxt)
 {
-       if (use_intel())
-               /*  Disable MTRRs, and set the default type to uncached  */
+       if (use_intel()) {
+               /* Disable MTRRs, and set the default type to uncached */
                mtrr_wrmsr(MSR_MTRRdefType, ctxt->deftype_lo & 0xf300UL,
                      ctxt->deftype_hi);
-       else if (is_cpu(CYRIX))
-               /* Cyrix ARRs - everything else were excluded at the top */
-               setCx86(CX86_CCR3, (ctxt->ccr3 & 0x0f) | 0x10);
+       } else {
+               if (is_cpu(CYRIX)) {
+                       /* Cyrix ARRs - everything else were excluded at the top */
+                       setCx86(CX86_CCR3, (ctxt->ccr3 & 0x0f) | 0x10);
+               }
+       }
 }
 
-/*  Restore the processor after a set_mtrr_prepare  */
+/* Restore the processor after a set_mtrr_prepare */
 void set_mtrr_done(struct set_mtrr_context *ctxt)
 {
        if (use_intel() || is_cpu(CYRIX)) {
 
-               /*  Flush caches and TLBs  */
+               /* Flush caches and TLBs */
                wbinvd();
 
-               /*  Restore MTRRdefType  */
-               if (use_intel())
+               /* Restore MTRRdefType */
+               if (use_intel()) {
                        /* Intel (P6) standard MTRRs */
-                       mtrr_wrmsr(MSR_MTRRdefType, ctxt->deftype_lo, ctxt->deftype_hi);
-               else
-                       /* Cyrix ARRs - everything else was excluded at the top */
+                       mtrr_wrmsr(MSR_MTRRdefType, ctxt->deftype_lo,
+                                  ctxt->deftype_hi);
+               } else {
+                       /*
+                        * Cyrix ARRs -
+                        * everything else was excluded at the top
+                        */
                        setCx86(CX86_CCR3, ctxt->ccr3);
+               }
 
-               /*  Enable caches  */
+               /* Enable caches */
                write_cr0(read_cr0() & 0xbfffffff);
 
-               /*  Restore value of CR4  */
+               /* Restore value of CR4 */
                if (cpu_has_pge)
                        write_cr4(ctxt->cr4val);
        }
-       /*  Re-enable interrupts locally (if enabled previously)  */
+       /* Re-enable interrupts locally (if enabled previously) */
        local_irq_restore(ctxt->flags);
 }
-