[RFC PATCH 1/5] kexec: make crashk_res, crashk_low_res and crash_notes symbols always visible
From: Jisheng Zhang <jszhang@kernel.org>
Date: 2021-12-03 05:19:19
Also in:
kexec, linux-riscv, lkml
Subsystem:
kexec, the rest · Maintainers:
Andrew Morton, Baoquan He, Mike Rapoport, Pasha Tatashin, Pratyush Yadav, Linus Torvalds
Make the forward declarations of crashk_res, crashk_low_res and crash_notes always visible. Code referring to these symbols can then just check for IS_ENABLED(CONFIG_KEXEC_CORE), instead of requiring conditional compilation using an #ifdef, thus preparing to increase compile coverage and simplify the code. Signed-off-by: Jisheng Zhang <jszhang@kernel.org> --- include/linux/kexec.h | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/include/linux/kexec.h b/include/linux/kexec.h
index 0c994ae37729..58d1b58a971e 100644
--- a/include/linux/kexec.h
+++ b/include/linux/kexec.h@@ -20,6 +20,12 @@ #include <uapi/linux/kexec.h> +/* Location of a reserved region to hold the crash kernel. + */ +extern struct resource crashk_res; +extern struct resource crashk_low_res; +extern note_buf_t __percpu *crash_notes; + #ifdef CONFIG_KEXEC_CORE #include <linux/list.h> #include <linux/compat.h>
@@ -350,12 +356,6 @@ extern int kexec_load_disabled; #define KEXEC_FILE_FLAGS (KEXEC_FILE_UNLOAD | KEXEC_FILE_ON_CRASH | \ KEXEC_FILE_NO_INITRAMFS) -/* Location of a reserved region to hold the crash kernel. - */ -extern struct resource crashk_res; -extern struct resource crashk_low_res; -extern note_buf_t __percpu *crash_notes; - /* flag to track if kexec reboot is in progress */ extern bool kexec_in_progress;
--
2.34.1
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