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Date: Fri, 16 Oct 2020 16:04:03 -0400
From: Arvind Sankar <nivedita@...m.mit.edu>
To: Borislav Petkov <bp@...en8.de>
Cc: x86@...nel.org, Joerg Roedel <jroedel@...e.de>,
linux-kernel@...r.kernel.org
Subject: [PATCH v3 3/4] x86/boot: Split out command-line related declarations
Move prototypes for command-line related functions into a new header
file to split it out from misc.h.
Signed-off-by: Arvind Sankar <nivedita@...m.mit.edu>
---
arch/x86/boot/compressed/acpi.c | 1 +
arch/x86/boot/compressed/cmdline.c | 1 +
arch/x86/boot/compressed/cmdline.h | 13 +++++++++++++
arch/x86/boot/compressed/early_serial_console.c | 1 +
arch/x86/boot/compressed/ident_map_64.c | 7 +------
arch/x86/boot/compressed/kaslr.c | 7 +------
arch/x86/boot/compressed/misc.h | 4 ----
arch/x86/boot/compressed/pgtable_64.c | 2 +-
8 files changed, 19 insertions(+), 17 deletions(-)
create mode 100644 arch/x86/boot/compressed/cmdline.h
diff --git a/arch/x86/boot/compressed/acpi.c b/arch/x86/boot/compressed/acpi.c
index 8bcbcee54aa1..9097108c37e1 100644
--- a/arch/x86/boot/compressed/acpi.c
+++ b/arch/x86/boot/compressed/acpi.c
@@ -3,6 +3,7 @@
#include "misc.h"
#include "error.h"
#include "../string.h"
+#include "cmdline.h"
#include <linux/numa.h>
#include <linux/efi.h>
diff --git a/arch/x86/boot/compressed/cmdline.c b/arch/x86/boot/compressed/cmdline.c
index f1add5d85da9..20f2e6d8b891 100644
--- a/arch/x86/boot/compressed/cmdline.c
+++ b/arch/x86/boot/compressed/cmdline.c
@@ -1,5 +1,6 @@
// SPDX-License-Identifier: GPL-2.0
#include "misc.h"
+#include "cmdline.h"
static unsigned long fs;
static inline void set_fs(unsigned long seg)
diff --git a/arch/x86/boot/compressed/cmdline.h b/arch/x86/boot/compressed/cmdline.h
new file mode 100644
index 000000000000..72800770bd60
--- /dev/null
+++ b/arch/x86/boot/compressed/cmdline.h
@@ -0,0 +1,13 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef BOOT_COMPRESSED_CMDLINE_H
+#define BOOT_COMPRESSED_CMDLINE_H
+
+#define _SETUP
+#include <asm/setup.h> /* For COMMAND_LINE_SIZE */
+#undef _SETUP
+
+unsigned long get_cmd_line_ptr(void);
+int cmdline_find_option(const char *option, char *buffer, int bufsize);
+int cmdline_find_option_bool(const char *option);
+
+#endif /* BOOT_COMPRESSED_CMDLINE_H */
diff --git a/arch/x86/boot/compressed/early_serial_console.c b/arch/x86/boot/compressed/early_serial_console.c
index 261e81fb9582..64a1f557e122 100644
--- a/arch/x86/boot/compressed/early_serial_console.c
+++ b/arch/x86/boot/compressed/early_serial_console.c
@@ -1,4 +1,5 @@
#include "misc.h"
+#include "cmdline.h"
int early_serial_base;
diff --git a/arch/x86/boot/compressed/ident_map_64.c b/arch/x86/boot/compressed/ident_map_64.c
index b679908c120e..06ebe5e3e489 100644
--- a/arch/x86/boot/compressed/ident_map_64.c
+++ b/arch/x86/boot/compressed/ident_map_64.c
@@ -21,6 +21,7 @@
#include "error.h"
#include "misc.h"
+#include "cmdline.h"
/* These actually do the work of building the kernel identity maps. */
#include <linux/pgtable.h>
@@ -33,12 +34,6 @@
#define __PAGE_OFFSET __PAGE_OFFSET_BASE
#include "../../mm/ident_map.c"
-#define _SETUP
-#include <asm/setup.h> /* For COMMAND_LINE_SIZE */
-#undef _SETUP
-
-extern unsigned long get_cmd_line_ptr(void);
-
/* Used by PAGE_KERN* macros: */
pteval_t __default_kernel_pte_mask __read_mostly = ~0;
diff --git a/arch/x86/boot/compressed/kaslr.c b/arch/x86/boot/compressed/kaslr.c
index b92fffbe761f..9eabd8bc7673 100644
--- a/arch/x86/boot/compressed/kaslr.c
+++ b/arch/x86/boot/compressed/kaslr.c
@@ -22,6 +22,7 @@
#include "misc.h"
#include "error.h"
#include "../string.h"
+#include "cmdline.h"
#include <generated/compile.h>
#include <linux/module.h>
@@ -36,12 +37,6 @@
#define STATIC
#include <linux/decompress/mm.h>
-#define _SETUP
-#include <asm/setup.h> /* For COMMAND_LINE_SIZE */
-#undef _SETUP
-
-extern unsigned long get_cmd_line_ptr(void);
-
/* Simplified build-specific string for starting entropy. */
static const char build_str[] = UTS_RELEASE " (" LINUX_COMPILE_BY "@"
LINUX_COMPILE_HOST ") (" LINUX_COMPILER ") " UTS_VERSION;
diff --git a/arch/x86/boot/compressed/misc.h b/arch/x86/boot/compressed/misc.h
index 6d31f1b4c4d1..e3e2f312c025 100644
--- a/arch/x86/boot/compressed/misc.h
+++ b/arch/x86/boot/compressed/misc.h
@@ -69,10 +69,6 @@ static inline void debug_puthex(unsigned long value)
#endif
-/* cmdline.c */
-int cmdline_find_option(const char *option, char *buffer, int bufsize);
-int cmdline_find_option_bool(const char *option);
-
struct mem_vector {
u64 start;
u64 size;
diff --git a/arch/x86/boot/compressed/pgtable_64.c b/arch/x86/boot/compressed/pgtable_64.c
index 25add5510edc..0976c2d2ab2f 100644
--- a/arch/x86/boot/compressed/pgtable_64.c
+++ b/arch/x86/boot/compressed/pgtable_64.c
@@ -4,6 +4,7 @@
#include <asm/efi.h>
#include "pgtable.h"
#include "../string.h"
+#include "cmdline.h"
#define BIOS_START_MIN 0x20000U /* 128K, less than this is insane */
#define BIOS_START_MAX 0x9f000U /* 640K, absolute maximum */
@@ -33,7 +34,6 @@ static char trampoline_save[TRAMPOLINE_32BIT_SIZE];
unsigned long *trampoline_32bit __section(.data);
extern struct boot_params *boot_params;
-int cmdline_find_option_bool(const char *option);
static unsigned long find_trampoline_placement(void)
{
--
2.26.2
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