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Date: Mon, 9 May 2016 13:22:05 -0700
From: Kees Cook <keescook@...omium.org>
To: Ingo Molnar <mingo@...nel.org>
Cc: Kees Cook <keescook@...omium.org>,
Borislav Petkov <bp@...e.de>,
Baoquan He <bhe@...hat.com>,
Yinghai Lu <yinghai@...nel.org>,
Ingo Molnar <mingo@...hat.com>,
"H. Peter Anvin" <hpa@...or.com>,
Borislav Petkov <bp@...en8.de>,
Vivek Goyal <vgoyal@...hat.com>,
Andy Lutomirski <luto@...nel.org>,
lasse.collin@...aani.org,
Andrew Morton <akpm@...ux-foundation.org>,
Dave Young <dyoung@...hat.com>,
kernel-hardening@...ts.openwall.com,
LKML <linux-kernel@...r.kernel.org>
Subject: [PATCH v7 2/9] x86/boot: Add missing file header comments
There were some files with missing header comments. Since they are
included from both compressed and regular kernels, make note of that.
Also corrects a typo in the mem_avoid comments.
Signed-off-by: Kees Cook <keescook@...omium.org>
---
arch/x86/boot/compressed/kaslr.c | 2 +-
arch/x86/boot/early_serial_console.c | 4 ++++
arch/x86/mm/ident_map.c | 5 +++++
3 files changed, 10 insertions(+), 1 deletion(-)
diff --git a/arch/x86/boot/compressed/kaslr.c b/arch/x86/boot/compressed/kaslr.c
index f82975b0f9d6..3f0692dcd30d 100644
--- a/arch/x86/boot/compressed/kaslr.c
+++ b/arch/x86/boot/compressed/kaslr.c
@@ -163,7 +163,7 @@ static bool mem_overlaps(struct mem_vector *one, struct mem_vector *two)
* memory ranges lead to really hard to debug boot failures.
*
* The initrd, cmdline, and boot_params are trivial to identify for
- * avoiding. The are MEM_AVOID_INITRD, MEM_AVOID_CMDLINE, and
+ * avoiding. They are MEM_AVOID_INITRD, MEM_AVOID_CMDLINE, and
* MEM_AVOID_BOOTPARAMS respectively below.
*
* What is not obvious how to avoid is the range of memory that is used
diff --git a/arch/x86/boot/early_serial_console.c b/arch/x86/boot/early_serial_console.c
index 45a07684bbab..f0b8d6d93164 100644
--- a/arch/x86/boot/early_serial_console.c
+++ b/arch/x86/boot/early_serial_console.c
@@ -1,3 +1,7 @@
+/*
+ * Serial port routines for use during early boot reporting. This code is
+ * included from both the compressed kernel and the regular kernel.
+ */
#include "boot.h"
#define DEFAULT_SERIAL_PORT 0x3f8 /* ttyS0 */
diff --git a/arch/x86/mm/ident_map.c b/arch/x86/mm/ident_map.c
index 751ca920773a..ec21796ac5fd 100644
--- a/arch/x86/mm/ident_map.c
+++ b/arch/x86/mm/ident_map.c
@@ -1,3 +1,7 @@
+/*
+ * Helper routines for building identity mapping page tables. This is
+ * included by both the compressed kernel and the regular kernel.
+ */
static void ident_pmd_init(unsigned long pmd_flag, pmd_t *pmd_page,
unsigned long addr, unsigned long end)
@@ -10,6 +14,7 @@ static void ident_pmd_init(unsigned long pmd_flag, pmd_t *pmd_page,
set_pmd(pmd, __pmd(addr | pmd_flag));
}
}
+
static int ident_pud_init(struct x86_mapping_info *info, pud_t *pud_page,
unsigned long addr, unsigned long end)
{
--
2.6.3
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