From 33709413014cd5b8e54d4d9efa07a30ba028e1db Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Wed, 11 Aug 2021 10:51:00 +0200 Subject: [PATCH] crash_dump: Make elfcorehdr address/size symbols always visible Make the forward declarations of elfcorehdr_addr and elfcorehdr_size, and the definitions of ELFCORE_ADDR_MAX and ELFCORE_ADDR_ERR always available, like is done for phys_initrd_start and phys_initrd_size. Code referring to these symbols can then just check for IS_ENABLED(CONFIG_CRASH_DUMP), instead of requiring conditional compilation using an #ifdef, thus preparing to increase compile coverage. Suggested-by: Rob Herring Signed-off-by: Geert Uytterhoeven Signed-off-by: Rob Herring Link: https://lore.kernel.org/r/ba965ca613c0cc82c1ec2fe353ee34fb13b36474.1628670468.git.geert+renesas@glider.be --- include/linux/crash_dump.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/include/linux/crash_dump.h b/include/linux/crash_dump.h index a5192b718dbe..2618577a4d6d 100644 --- a/include/linux/crash_dump.h +++ b/include/linux/crash_dump.h @@ -10,13 +10,14 @@ #include /* for pgprot_t */ -#ifdef CONFIG_CRASH_DUMP +/* For IS_ENABLED(CONFIG_CRASH_DUMP) */ #define ELFCORE_ADDR_MAX (-1ULL) #define ELFCORE_ADDR_ERR (-2ULL) extern unsigned long long elfcorehdr_addr; extern unsigned long long elfcorehdr_size; +#ifdef CONFIG_CRASH_DUMP extern int elfcorehdr_alloc(unsigned long long *addr, unsigned long long *size); extern void elfcorehdr_free(unsigned long long addr); extern ssize_t elfcorehdr_read(char *buf, size_t count, u64 *ppos);