x86/boot/e820: Remove e820_mark_nosave_regions() definition uglies

The e820_mark_nosave_regions definition has a number of ugly #ifdef
conditions that unnecessarily uglify both the header and the
e820.c file.

Make this function unconditional: most distro kernels have hibernation
enabled. If LTO functionality is added in the future it will be able
to eliminate unused functions without uglifying the source code.

No change in functionality.

Cc: Alex Thorlton <athorlton@sgi.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Huang, Ying <ying.huang@intel.com>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Juergen Gross <jgross@suse.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Paul Jackson <pj@sgi.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rafael J. Wysocki <rjw@sisk.pl>
Cc: Tejun Heo <tj@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Wei Yang <richard.weiyang@gmail.com>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>

diff --git a/arch/x86/include/asm/e820/api.h b/arch/x86/include/asm/e820/api.h
index e8ad6d9c997484485b1f8e3e649d2e21ea0613fd..4895544b17abc0d0c3cb1b7eb905c8bf4f558f4e 100644 (file)
--- a/arch/x86/include/asm/e820/api.h
+++ b/arch/x86/include/asm/e820/api.h
@@ -30,12 +30,7 @@ extern void e820_reserve_resources_late(void);
 extern void setup_memory_map(void);
 extern char *default_machine_specific_memory_setup(void);
 extern void e820_reallocate_tables(void);
-
-#if defined(CONFIG_X86_64) || defined(CONFIG_X86_32) && defined(CONFIG_HIBERNATION)
 extern void e820_mark_nosave_regions(unsigned long limit_pfn);
-#else
-static inline void e820_mark_nosave_regions(unsigned long limit_pfn) { }
-#endif
 
 /*
  * Returns true iff the specified range [start,end) is completely contained inside

diff --git a/arch/x86/kernel/e820.c b/arch/x86/kernel/e820.c
index eeb9c9963a6b981c7945eb453c5f4c297bf415af..1f75b95185b8213fd062349590cbdf16cc458be1 100644 (file)
--- a/arch/x86/kernel/e820.c
+++ b/arch/x86/kernel/e820.c
@@ -696,8 +696,6 @@ void __init parse_e820_ext(u64 phys_addr, u32 data_len)
        e820_print_map("extended");
 }
 
-#if defined(CONFIG_X86_64) || \
-       (defined(CONFIG_X86_32) && defined(CONFIG_HIBERNATION))
 /**
  * Find the ranges of physical addresses that do not correspond to
  * e820 RAM areas and mark the corresponding pages as nosave for
@@ -726,7 +724,6 @@ void __init e820_mark_nosave_regions(unsigned long limit_pfn)
                        break;
        }
 }
-#endif
 
 #ifdef CONFIG_ACPI
 /**