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arm64: dump: Make ptdump debugfs a separate option

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ptdump_register currently initializes a set of page table information and
registers debugfs. There are uses for the ptdump option without wanting the
debugfs options. Split this out to make it a separate option.

Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Mark Rutland <mark.rutland@arm.com>
Tested-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Laura Abbott <labbott@redhat.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
This commit is contained in:
Laura Abbott
2016-10-27 09:27:31 -07:00
committed by Catalin Marinas
parent 0bfc445dec
commit 4ddb9bf833
6 changed files with 54 additions and 31 deletions
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15
arch/arm64/include/asm/ptdump.h
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@@ -16,9 +16,10 @@
#ifndef __ASM_PTDUMP_H
#define __ASM_PTDUMP_H
#ifdef CONFIG_ARM64_PTDUMP
#ifdef CONFIG_ARM64_PTDUMP_CORE
#include <linux/mm_types.h>
#include <linux/seq_file.h>
struct addr_marker {
unsigned long start_address;
@@ -32,13 +33,15 @@ struct ptdump_info {
unsigned long max_addr;
};
int ptdump_register(struct ptdump_info *info, const char *name);
void ptdump_walk_pgd(struct seq_file *s, struct ptdump_info *info);
#ifdef CONFIG_ARM64_PTDUMP_DEBUGFS
int ptdump_debugfs_register(struct ptdump_info *info, const char *name);
#else
static inline int ptdump_register(struct ptdump_info *info, const char *name)
static inline int ptdump_debugfs_register(struct ptdump_info *info,
const char *name)
{
return 0;
}
#endif /* CONFIG_ARM64_PTDUMP */
#endif
#endif /* CONFIG_ARM64_PTDUMP_CORE */
#endif /* __ASM_PTDUMP_H */