[PATCH 26/50] x86/boot/e820: Clarify the role of finish_e820_parsing() and rename it to e820__finish_early_params()

From: Ingo Molnar
Date: Sat Jan 28 2017 - 17:22:02 EST

finish_e820_parsing() is closely related to parse_early_params(), but the
name does not tell us this clearly, so rename it to e820__finish_early_params().

Also add a few comments to explain what the function does.

No change in functionality.

Cc: Alex Thorlton <athorlton@xxxxxxx>
Cc: Andy Lutomirski <luto@xxxxxxxxxx>
Cc: Borislav Petkov <bp@xxxxxxxxx>
Cc: Brian Gerst <brgerst@xxxxxxxxx>
Cc: Dan Williams <dan.j.williams@xxxxxxxxx>
Cc: Denys Vlasenko <dvlasenk@xxxxxxxxxx>
Cc: H. Peter Anvin <hpa@xxxxxxxxx>
Cc: Huang, Ying <ying.huang@xxxxxxxxx>
Cc: Josh Poimboeuf <jpoimboe@xxxxxxxxxx>
Cc: Juergen Gross <jgross@xxxxxxxx>
Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Cc: Paul Jackson <pj@xxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Rafael J. Wysocki <rjw@xxxxxxx>
Cc: Tejun Heo <tj@xxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Wei Yang <richard.weiyang@xxxxxxxxx>
Cc: Yinghai Lu <yinghai@xxxxxxxxxx>
Cc: linux-kernel@xxxxxxxxxxxxxxx
Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx>
arch/x86/include/asm/e820/api.h | 2 +-
arch/x86/kernel/e820.c | 7 ++++++-
arch/x86/kernel/setup.c | 2 +-
3 files changed, 8 insertions(+), 3 deletions(-)

diff --git a/arch/x86/include/asm/e820/api.h b/arch/x86/include/asm/e820/api.h
index 23019a696fcd..0162581b0cae 100644
--- a/arch/x86/include/asm/e820/api.h
+++ b/arch/x86/include/asm/e820/api.h
@@ -23,7 +23,7 @@ extern unsigned long e820_end_of_low_ram_pfn(void);
extern u64 early_reserve_e820(u64 sizet, u64 align);
extern void e820__memblock_setup(void);
extern void e820_reserve_setup_data(void);
-extern void finish_e820_parsing(void);
+extern void e820__finish_early_params(void);
extern void e820_reserve_resources(void);
extern void e820_reserve_resources_late(void);
extern void e820__memory_setup(void);
diff --git a/arch/x86/kernel/e820.c b/arch/x86/kernel/e820.c
index 79b9401bbbea..904ddb1343f2 100644
--- a/arch/x86/kernel/e820.c
+++ b/arch/x86/kernel/e820.c
@@ -932,7 +932,12 @@ void __init e820_reserve_setup_data(void)
e820_print_map("reserve setup_data");

-void __init finish_e820_parsing(void)
+ * Called after parse_early_param(), after early parameters (such as mem=)
+ * have been processed, in which case we already have an E820 table filled in
+ * via the parameter callback function(s), but it's not sorted and printed yet:
+ */
+void __init e820__finish_early_params(void)
if (userdef) {
if (sanitize_e820_table(e820_table->entries, ARRAY_SIZE(e820_table->entries), &e820_table->nr_entries) < 0)
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index 7954159f0d27..a121e01d8a4d 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -1005,7 +1005,7 @@ void __init setup_arch(char **cmdline_p)

/* update the e820_table_firmware too */
- finish_e820_parsing();
+ e820__finish_early_params();

if (efi_enabled(EFI_BOOT))