linux-kernel - [tip:x86/urgent] x86: Fix false positive section mismatch warnings in the apic code

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Date:	Sun, 19 Apr 2009 09:30:40 GMT
From:	tip-bot for Rakib Mullick <rakib.mullick@...il.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, hpa@...or.com, mingo@...hat.com,
	rakib.mullick@...il.com, akpm@...ux-foundation.org,
	tglx@...utronix.de, mingo@...e.hu
Subject: [tip:x86/urgent] x86: Fix false positive section mismatch warnings in the apic code

Commit-ID:  aa57a15ad17d284e62fbd24cf7e0eb628b2cb3f7
Gitweb:     http://git.kernel.org/tip/aa57a15ad17d284e62fbd24cf7e0eb628b2cb3f7
Author:     Rakib Mullick <rakib.mullick@...il.com>
AuthorDate: Sun, 19 Apr 2009 08:41:17 +0600
Committer:  Ingo Molnar <mingo@...e.hu>
CommitDate: Sun, 19 Apr 2009 11:28:18 +0200

x86: Fix false positive section mismatch warnings in the apic code

find_unisys_acpi_oem_table() and unmap_unisys_acpi_oem_table() are non
init functions, but these functions calls some init functions. But we
need these functions as non-init functions.

So annotate them via __ref.

The following false positive warnings are fixed via this:

  WARNING: vmlinux.o(.text+0x16250): Section mismatch in reference from
  the function find_unisys_acpi_oem_table() to the function
  .init.text:early_acpi_os_unmap_memory()
  The function find_unisys_acpi_oem_table() references
  the function __init early_acpi_os_unmap_memory().
  This is often because find_unisys_acpi_oem_table lacks a __init
  annotation or the annotation of early_acpi_os_unmap_memory is wrong.

  WARNING: vmlinux.o(.text+0x16269): Section mismatch in reference from
  the function find_unisys_acpi_oem_table() to the function
  .init.text:early_acpi_os_unmap_memory()
  The function find_unisys_acpi_oem_table() references
  the function __init early_acpi_os_unmap_memory().
  This is often because find_unisys_acpi_oem_table lacks a __init
  annotation or the annotation of early_acpi_os_unmap_memory is wrong.

  WARNING: vmlinux.o(.text+0x16279): Section mismatch in reference from
  the function find_unisys_acpi_oem_table() to the function
  .init.text:__acpi_map_table()
  The function find_unisys_acpi_oem_table() references
  the function __init __acpi_map_table().
  This is often because find_unisys_acpi_oem_table lacks a __init
  annotation or the annotation of __acpi_map_table is wrong.

  WARNING: vmlinux.o(.text+0x16297): Section mismatch in reference from
  the function unmap_unisys_acpi_oem_table() to the function
  .init.text:__acpi_unmap_table()
  The function unmap_unisys_acpi_oem_table() references
  the function __init __acpi_unmap_table().
  This is often because unmap_unisys_acpi_oem_table lacks a __init
  annotation or the annotation of __acpi_unmap_table is wrong.

[ Impact: annotate away section mismatch warnings ]

Signed-off-by: Rakib Mullick <rakib.mullick@...il.com>
Cc: Andrew Morton <akpm@...ux-foundation.org>
LKML-Reference: <b9df5fa10904181941u4a73fc97i80dfa90a50b8daf5@...l.gmail.com>
Signed-off-by: Ingo Molnar <mingo@...e.hu>

---
 arch/x86/kernel/apic/es7000_32.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/x86/kernel/apic/es7000_32.c b/arch/x86/kernel/apic/es7000_32.c
index 1c11b81..96c150c 100644
--- a/arch/x86/kernel/apic/es7000_32.c
+++ b/arch/x86/kernel/apic/es7000_32.c
@@ -254,7 +254,7 @@ static int parse_unisys_oem(char *oemptr)
 }

 #ifdef CONFIG_ACPI
-static int find_unisys_acpi_oem_table(unsigned long *oem_addr)
+static int __ref find_unisys_acpi_oem_table(unsigned long *oem_addr)
 {
 	struct acpi_table_header *header = NULL;
 	struct es7000_oem_table *table;
@@ -285,7 +285,7 @@ static int find_unisys_acpi_oem_table(unsigned long *oem_addr)
 	return 0;
 }

-static void unmap_unisys_acpi_oem_table(unsigned long oem_addr)
+static void __ref unmap_unisys_acpi_oem_table(unsigned long oem_addr)
 {
 	if (!oem_addr)
 		return;
--
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