[PATCH] x86_64: Some cleanup in setup64.c

Minor cleanup.

Move things into their include files, remove obsolete includes, fix
indentation, remove obsolete special cases etc.

I also added the per cpu section to asm-generic/sections.h and fixed
init/main.c to use it.

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

diff --git a/arch/x86_64/kernel/setup64.c b/arch/x86_64/kernel/setup64.c
index f2b9c6bc999a09753d75bd6e07390913f88e8702..34082c1cc41e397f4254de5a6d22ba474ffeb90d 100644 (file)
--- a/arch/x86_64/kernel/setup64.c
+++ b/arch/x86_64/kernel/setup64.c
@@ -12,6 +12,7 @@
 #include <linux/string.h>
 #include <linux/bootmem.h>
 #include <linux/bitops.h>
+#include <linux/module.h>
 #include <asm/bootsetup.h>
 #include <asm/pda.h>
 #include <asm/pgtable.h>
@@ -22,10 +23,8 @@
 #include <asm/smp.h>
 #include <asm/i387.h>
 #include <asm/percpu.h>
-#include <asm/mtrr.h>
 #include <asm/proto.h>
-#include <asm/mman.h>
-#include <asm/numa.h>
+#include <asm/sections.h>
 
 char x86_boot_params[BOOT_PARAM_SIZE] __initdata = {0,};
 
@@ -33,11 +32,6 @@ cpumask_t cpu_initialized __cpuinitdata = CPU_MASK_NONE;
 
 struct x8664_pda cpu_pda[NR_CPUS] __cacheline_aligned; 
 
-extern struct task_struct init_task;
-
-extern unsigned char __per_cpu_start[], __per_cpu_end[]; 
-
-extern struct desc_ptr cpu_gdt_descr[];
 struct desc_ptr idt_descr = { 256 * 16, (unsigned long) idt_table }; 
 
 char boot_cpu_stack[IRQSTACKSIZE] __attribute__((section(".bss.page_aligned")));
@@ -101,7 +95,7 @@ void __init setup_per_cpu_areas(void)
 #endif
 
        for (i = 0; i < NR_CPUS; i++) { 
-               unsigned char *ptr;
+               char *ptr;
 
                if (!NODE_DATA(cpu_to_node(i))) {
                        printk("cpu with no node %d, num_online_nodes %d\n",
@@ -190,11 +184,7 @@ void __cpuinit check_efer(void)
  */
 void __cpuinit cpu_init (void)
 {
-#ifdef CONFIG_SMP
        int cpu = stack_smp_processor_id();
-#else
-       int cpu = smp_processor_id();
-#endif
        struct tss_struct *t = &per_cpu(init_tss, cpu);
        unsigned long v; 
        char *estacks = NULL; 
@@ -214,7 +204,7 @@ void __cpuinit cpu_init (void)
 
        printk("Initializing CPU#%d\n", cpu);
 
-               clear_in_cr4(X86_CR4_VME|X86_CR4_PVI|X86_CR4_TSD|X86_CR4_DE);
+       clear_in_cr4(X86_CR4_VME|X86_CR4_PVI|X86_CR4_TSD|X86_CR4_DE);
 
        /*
         * Initialize the per-CPU GDT with the boot GDT,

diff --git a/include/asm-generic/sections.h b/include/asm-generic/sections.h
index 195ccdc069e6c229dc22024a9d96d0b790f07735..450eae22c39a3e2a517dea059a7e3b01bb7ce6d6 100644 (file)
--- a/include/asm-generic/sections.h
+++ b/include/asm-generic/sections.h
@@ -11,5 +11,6 @@ extern char _sinittext[], _einittext[];
 extern char _sextratext[] __attribute__((weak));
 extern char _eextratext[] __attribute__((weak));
 extern char _end[];
+extern char __per_cpu_start[], __per_cpu_end[];
 
 #endif /* _ASM_GENERIC_SECTIONS_H_ */

diff --git a/include/asm-x86_64/desc.h b/include/asm-x86_64/desc.h
index 6aefb9c0280d5d82c1c58592d0f7cb31207840d0..c89b58bebee24619f9ae2b5ad903b752f5e1ec12 100644 (file)
--- a/include/asm-x86_64/desc.h
+++ b/include/asm-x86_64/desc.h
@@ -75,6 +75,7 @@ struct desc_ptr {
  */
 extern struct desc_struct default_ldt[];
 extern struct gate_struct idt_table[]; 
+extern struct desc_ptr cpu_gdt_descr[];
 
 static inline void _set_gate(void *adr, unsigned type, unsigned long func, unsigned dpl, unsigned ist)  
 {

diff --git a/init/main.c b/init/main.c
index b5e421e39ede7ec40d61da8345e8115a749dc0df..c9c311cf1771362a349c177e5662140640370e36 100644 (file)
--- a/init/main.c
+++ b/init/main.c
@@ -51,6 +51,7 @@
 #include <asm/io.h>
 #include <asm/bugs.h>
 #include <asm/setup.h>
+#include <asm/sections.h>
 
 /*
  * This is one of the first .c files built. Error out early
@@ -323,8 +324,6 @@ static void __init setup_per_cpu_areas(void)
 {
        unsigned long size, i;
        char *ptr;
-       /* Created by linker magic */
-       extern char __per_cpu_start[], __per_cpu_end[];
 
        /* Copy section for each CPU (we discard the original) */
        size = ALIGN(__per_cpu_end - __per_cpu_start, SMP_CACHE_BYTES);