x86/boot/64/clang: Use fixup_pointer() to access 'next_early_pgt'

[karo-tx-linux.git] / arch / x86 / kernel / setup_percpu.c

diff --git a/arch/x86/kernel/setup_percpu.c b/arch/x86/kernel/setup_percpu.c
index bb1e8cc0bc84816b8976dec088d3c18b038f8c01..10edd1e69a68bffcc7ee22ef220b25c24cadfc62 100644 (file)
--- a/arch/x86/kernel/setup_percpu.c
+++ b/arch/x86/kernel/setup_percpu.c
@@ -291,11 +291,11 @@ void __init setup_per_cpu_areas(void)
 
 #ifdef CONFIG_X86_32
        /*
-        * Sync back kernel address range.  We want to make sure that
-        * all kernel mappings, including percpu mappings, are available
-        * in the smpboot asm.  We can't reliably pick up percpu
-        * mappings using vmalloc_fault(), because exception dispatch
-        * needs percpu data.
+        * Sync back kernel address range again.  We already did this in
+        * setup_arch(), but percpu data also needs to be available in
+        * the smpboot asm.  We can't reliably pick up percpu mappings
+        * using vmalloc_fault(), because exception dispatch needs
+        * percpu data.
         */
        clone_pgd_range(initial_page_table + KERNEL_PGD_BOUNDARY,
                        swapper_pg_dir     + KERNEL_PGD_BOUNDARY,