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Subject[AMD64 1/3] fix C99-style declarations

Although the compiler has always supposed C99 style, I feel that until
the kernel as a whole moves to C99 style, such code reduces portability
to other compilers. In particular, I am willing to bet Intel's Yamhill
will eventually be supported by the x86-64 code, and non-gcc compilers
will eventually be used to build this platform.


# --------------------------------------------
# 03/10/25 jgarzik@redhat.com 1.1351
# [AMD64] Fix C99-ish mix of declarations and code.
# --------------------------------------------
diff -Nru a/arch/x86_64/ia32/syscall32.c b/arch/x86_64/ia32/syscall32.c
--- a/arch/x86_64/ia32/syscall32.c Sat Oct 25 06:08:19 2003
+++ b/arch/x86_64/ia32/syscall32.c Sat Oct 25 06:08:19 2003
@@ -30,10 +30,12 @@
int map_syscall32(struct mm_struct *mm, unsigned long address)
{
pte_t *pte;
+ pmd_t *pmd;
int err = 0;
+
down_read(&mm->mmap_sem);
spin_lock(&mm->page_table_lock);
- pmd_t *pmd = pmd_alloc(mm, pgd_offset(mm, address), address);
+ pmd = pmd_alloc(mm, pgd_offset(mm, address), address);
if (pmd && (pte = pte_alloc_map(mm, pmd, address)) != NULL) {
if (pte_none(*pte)) {
set_pte(pte,
diff -Nru a/arch/x86_64/kernel/bluesmoke.c b/arch/x86_64/kernel/bluesmoke.c
--- a/arch/x86_64/kernel/bluesmoke.c Sat Oct 25 06:08:19 2003
+++ b/arch/x86_64/kernel/bluesmoke.c Sat Oct 25 06:08:19 2003
@@ -200,11 +200,14 @@
static void check_k8_nb(int header)
{
struct pci_dev *nb;
+ u32 statuslow, statushigh;
+ unsigned short errcode;
+ int i;
+
nb = find_k8_nb();
if (nb == NULL)
return;

- u32 statuslow, statushigh;
pci_read_config_dword(nb, 0x48, &statuslow);
pci_read_config_dword(nb, 0x4c, &statushigh);
if (!(statushigh & (1<<31)))
@@ -215,7 +218,7 @@
printk(KERN_ERR "Northbridge status %08x%08x\n",
statushigh,statuslow);

- unsigned short errcode = statuslow & 0xffff;
+ errcode = statuslow & 0xffff;
switch (errcode >> 8) {
case 0:
printk(KERN_ERR " GART TLB error %s %s\n",
@@ -249,7 +252,6 @@
/* should only print when it was a HyperTransport related error. */
printk(KERN_ERR " link number %x\n", (statushigh >> 4) & 3);

- int i;
for (i = 0; i < 32; i++)
if (highbits[i] && (statushigh & (1<<i)))
printk(KERN_ERR " %s\n", highbits[i]);
diff -Nru a/arch/x86_64/kernel/setup.c b/arch/x86_64/kernel/setup.c
--- a/arch/x86_64/kernel/setup.c Sat Oct 25 06:08:19 2003
+++ b/arch/x86_64/kernel/setup.c Sat Oct 25 06:08:19 2003
@@ -332,6 +332,7 @@
void __init setup_arch(char **cmdline_p)
{
unsigned long low_mem_size;
+ unsigned long kernel_end;

ROOT_DEV = old_decode_dev(ORIG_ROOT_DEV);
drive_info = DRIVE_INFO;
@@ -380,7 +381,6 @@
(table_end - table_start) << PAGE_SHIFT);

/* reserve kernel */
- unsigned long kernel_end;
kernel_end = round_up(__pa_symbol(&_end),PAGE_SIZE);
reserve_bootmem_generic(HIGH_MEMORY, kernel_end - HIGH_MEMORY);

-
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