[PATCH]: remove pgd_base

[PATCH]: remove pgd_base

[Juan Quintela]

Hi

pgd_base was only used in the CONFIG_HIGHMEM.  Used constant
propagation and we are done.

Later, Juan.


 build/arch/mips/mm/init.c |    8 +++-----
 1 files changed, 3 insertions(+), 5 deletions(-)

diff -puN build/arch/mips/mm/init.c~remove_unused_var_init.c build/arch/mips/mm/init.c
--- 24/build/arch/mips/mm/init.c~remove_unused_var_init.c	2003-03-19 23:37:26.000000000 +0100
+++ 24-quintela/build/arch/mips/mm/init.c	2003-03-19 23:39:06.000000000 +0100
@@ -193,7 +193,7 @@ static void __init fixrange_init (unsign
 void __init pagetable_init(void)
 {
 	unsigned long vaddr;
-	pgd_t *pgd, *pgd_base;
+	pgd_t *pgd;
 	pmd_t *pmd;
 	pte_t *pte;
 
@@ -202,20 +202,18 @@ void __init pagetable_init(void)
 	pgd_init((unsigned long)swapper_pg_dir +
 	         sizeof(pgd_t ) * USER_PTRS_PER_PGD);
 
-	pgd_base = swapper_pg_dir;
-
 #ifdef CONFIG_HIGHMEM
 	/*
 	 * Fixed mappings:
 	 */
 	vaddr = __fix_to_virt(__end_of_fixed_addresses - 1) & PMD_MASK;
-	fixrange_init(vaddr, 0, pgd_base);
+	fixrange_init(vaddr, 0, swapper_pg_dir);
 
 	/*
 	 * Permanent kmaps:
 	 */
 	vaddr = PKMAP_BASE;
-	fixrange_init(vaddr, vaddr + PAGE_SIZE*LAST_PKMAP, pgd_base);
+	fixrange_init(vaddr, vaddr + PAGE_SIZE*LAST_PKMAP, swapper_pg_dir);
 
 	pgd = swapper_pg_dir + __pgd_offset(vaddr);
 	pmd = pmd_offset(pgd, vaddr);

_


-- 
In theory, practice and theory are the same, but in practice they 
are different -- Larry McVoy