Merge branch 'for-linus' of ssh://master.kernel.org/pub/scm/linux/kernel/git/ieee1394...

[pandora-kernel.git] / arch / i386 / kernel / e820.c

diff --git a/arch/i386/kernel/e820.c b/arch/i386/kernel/e820.c
index 2f7d0a9..70f3956 100644 (file)
--- a/arch/i386/kernel/e820.c
+++ b/arch/i386/kernel/e820.c
@@ -14,6 +14,7 @@
 #include <asm/pgtable.h>
 #include <asm/page.h>
 #include <asm/e820.h>
+#include <asm/setup.h>
 
 #ifdef CONFIG_EFI
 int efi_enabled = 0;
@@ -156,21 +157,22 @@ static struct resource standard_io_resources[] = { {
        .flags  = IORESOURCE_BUSY | IORESOURCE_IO
 } };
 
-static int romsignature(const unsigned char *x)
+#define ROMSIGNATURE 0xaa55
+
+static int __init romsignature(const unsigned char *rom)
 {
        unsigned short sig;
-       int ret = 0;
-       if (probe_kernel_address((const unsigned short *)x, sig) == 0)
-               ret = (sig == 0xaa55);
-       return ret;
+
+       return probe_kernel_address((const unsigned short *)rom, sig) == 0 &&
+              sig == ROMSIGNATURE;
 }
 
 static int __init romchecksum(unsigned char *rom, unsigned long length)
 {
-       unsigned char *p, sum = 0;
+       unsigned char sum;
 
-       for (p = rom; p < rom + length; p++)
-               sum += *p;
+       for (sum = 0; length; length--)
+               sum += *rom++;
        return sum == 0;
 }
 
@@ -668,7 +670,7 @@ void __init register_bootmem_low_pages(unsigned long max_low_pfn)
        }
 }
 
-void __init register_memory(void)
+void __init e820_register_memory(void)
 {
        unsigned long gapstart, gapsize, round;
        unsigned long long last;