linux-kernel - [PATCH 26/50] x86/boot/e820: Clarify the role of finish_e820_parsing() and rename it to e820__finish_early

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Sat, 28 Jan 2017 23:11:47 +0100
From:   Ingo Molnar <mingo@...nel.org>
To:     linux-kernel@...r.kernel.org
Cc:     Andrew Morton <akpm@...ux-foundation.org>,
        Andy Lutomirski <luto@...capital.net>,
        Borislav Petkov <bp@...en8.de>,
        "H . Peter Anvin" <hpa@...or.com>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Yinghai Lu <yinghai@...nel.org>
Subject: [PATCH 26/50] x86/boot/e820: Clarify the role of finish_e820_parsing() and rename it to e820__finish_early_params()

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@....com>
Cc: Andy Lutomirski <luto@...nel.org>
Cc: Borislav Petkov <bp@...en8.de>
Cc: Brian Gerst <brgerst@...il.com>
Cc: Dan Williams <dan.j.williams@...el.com>
Cc: Denys Vlasenko <dvlasenk@...hat.com>
Cc: H. Peter Anvin <hpa@...or.com>
Cc: Huang, Ying <ying.huang@...el.com>
Cc: Josh Poimboeuf <jpoimboe@...hat.com>
Cc: Juergen Gross <jgross@...e.com>
Cc: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Paul Jackson <pj@....com>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Rafael J. Wysocki <rjw@...k.pl>
Cc: Tejun Heo <tj@...nel.org>
Cc: Thomas Gleixner <tglx@...utronix.de>
Cc: Wei Yang <richard.weiyang@...il.com>
Cc: Yinghai Lu <yinghai@...nel.org>
Cc: linux-kernel@...r.kernel.org
Signed-off-by: Ingo Molnar <mingo@...nel.org>
---
 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 */
 	e820_reserve_setup_data();
-	finish_e820_parsing();
+	e820__finish_early_params();
 
 	if (efi_enabled(EFI_BOOT))
 		efi_init();
-- 
2.7.4