x86_64: Squash initial_code modpost warnings

Get rid of warnings like

WARNING: vmlinux.o(.bootstrap.text+0x1a8): Section mismatch: reference to .init.text:x86_64_start_kernel (between 'initial_code' and 'init_rsp')

- Move initialization code into .text.head like i386 because modpost knows about this already
- Mark initial_code .initdata

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/arch/x86_64/kernel/head.S b/arch/x86_64/kernel/head.S
index 941c84baecc8da3fc4496d912216760a083e034a..e89abcdbdde8172e25d6dff0ddb8323471495c66 100644 (file)
--- a/arch/x86_64/kernel/head.S
+++ b/arch/x86_64/kernel/head.S
@@ -25,7 +25,7 @@
  */
 
        .text
-       .section .bootstrap.text
+       .section .text.head
        .code64
        .globl startup_64
 startup_64:
@@ -243,10 +243,16 @@ ENTRY(secondary_startup_64)
        lretq
 
        /* SMP bootup changes these two */
+#ifndef CONFIG_HOTPLUG_CPU
+       .pushsection .init.data
+#endif
        .align  8
        .globl  initial_code
 initial_code:
        .quad   x86_64_start_kernel
+#ifndef CONFIG_HOTPLUG_CPU
+       .popsection
+#endif
        .globl init_rsp
 init_rsp:
        .quad  init_thread_union+THREAD_SIZE-8

diff --git a/arch/x86_64/kernel/vmlinux.lds.S b/arch/x86_64/kernel/vmlinux.lds.S
index e7a5eb6cd785a50e914566291d104ef47146754c..ba8ea97abd219359d6e7c68541e375dbe97f5c7a 100644 (file)
--- a/arch/x86_64/kernel/vmlinux.lds.S
+++ b/arch/x86_64/kernel/vmlinux.lds.S
@@ -28,7 +28,7 @@ SECTIONS
   _text = .;                   /* Text and read-only data */
   .text :  AT(ADDR(.text) - LOAD_OFFSET) {
        /* First the code that has to be first for bootstrapping */
-       *(.bootstrap.text)
+       *(.text.head)
        _stext = .;
        /* Then the rest */
        TEXT_TEXT